JP3110779B2 - Sealer applicator with spot welding gun - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for performing sealer application and spot welding by using the same apparatus to improve work efficiency and save space.

[0002]

2. Description of the Related Art Conventionally, in a work (W) as shown in FIG. 8, for example, as shown in (A), a sealer (a) is applied to an end face of the work, and the work (W) is positioned at a coating station or the like. It is held by a jig, and the sealer gun is applied while being moved in the application direction by a slide unit or the like. Also, as shown in (B), another work (W
In the case of spot welding o), both works (W) and (Wo) are held by a positioning jig at a welding station or the like,
Welding is performed while moving the spot welding gun in the welding direction by a slide unit or the like. Further, when the application of the sealant (a) and the welding of the work (Wo) are performed on the same work (W) as shown in (C), one work is performed once in one station, and then another work is performed. It is performed the remaining other work with the movement of the station.

[0003]

However, needless to say, in the above-mentioned conventional method, it is necessary to separately provide a sealer coating device and a spot welding device, and provide respective work holding jigs, slide mechanisms and the like. Because of the necessity, the equipment cost is increased and the space is required.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention according to claim 1 enables the application of the sealer and the spot welding by the same apparatus. That is, an application unit that can move horizontally along a horizontal rail, an elevating unit that can move up and down along a vertical rail, and a connecting member that can be connected to each of these units via a detachable unit are provided. Attach a sealer gun to the unit, attach a spot welding gun to the connecting member ,
Connects to the detachable unit of the application unit when applying the sealant
1st connection part and lifting unit during spot welding
A second connecting portion connected to the detachable unit is provided. According to a second aspect of the present invention, the sealer gun is a coating unit.
Is pinned to a part of the shaft and around the pin axis during spot welding
To a position where it does not interfere with the spot welding gun
Attached to the swinging member. According to a third aspect of the present invention , the second connecting portion of the connecting member to which the spot welding gun is attached.
The detachable unit of the elevating unit to which the
Moves vertically along the vertical rail when applying
Retreat the spot welding gun to a position where it does not interfere with the application
Spot welding characterized by being a detachable unit
Sealer coating device equipped with a gun.

[0005]

[Operation] Attaching and detaching the first connecting portion of the connecting member and the coating unit.
Disconnect the connection with the knit, and connect the second connecting part of the connecting member to the lifting unit.
By connecting the knitting detachable unit , the connecting member can be moved up and down freely. In other words, the spot welding gun attached to the connecting member can be moved up and down. For example, the detachable unit of the elevating unit can be
By moving vertically , the spot welding gun can be retracted to a position where it does not interfere with the application of the sealer. Reverse the coupling member
Disconnect the connection between the second connecting portion and the detachable unit of the elevating unit, and remove the connecting unit between the first connecting portion of the connecting member and the detachable unit of the application unit.
The spot welding gun can be changed in position horizontally by connecting to the spot welding, for example, spot welding can be performed while moving in the horizontal direction. On the other hand, since the application unit is horizontally movable, the application can be performed while moving the sealer gun in the horizontal direction. Ma
In addition, a part of the dispensing unit is pivoted with a pin
The sealer gun attached to the swing member that swings
To a position where it does not interfere with the spot welding gun during welding.
I can make it. As described above, since the sealer application and the spot welding can be performed by one apparatus, the facility cost can be reduced and the space can be saved.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sealer coating apparatus according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view of a sealer coating apparatus according to one embodiment of the present meat generation, FIG. 2 is a side view as viewed from the X direction in FIG. 1, and FIG. 3 is a front view. As shown in FIGS. 1 to 3, a sealer coating apparatus (1) according to the present invention includes a main frame (2) installed in a pit of a work station, and an auxiliary frame mounted on the main frame (2). (3), the work (W) carried in the direction indicated by the arrow in FIG. 1 is positioned at a predetermined position above the auxiliary gantry (3), and the work (W) is transported in the vertical direction in FIG. , And / or spot welding are performed. For this reason, a pair of rail members extending along the vertical direction in FIG.
(4), (4) is provided, and each rail member (4),
A pair of coating units (5) and (5) engaging with (4) are slidable by motors (6) and (6) at the rail end. That is, the drive output of the motor (6) is transmitted to the coating unit (5) via a linear ball shaft or the like (not shown) after passing through a gear in the gear box (7), and is provided in the coating unit (5). Ta shelagan (8)
The sealer (a) is applied to the work (W) as shown in FIG. 8 (A) or (C). The work on both end faces of the work is simultaneously performed by the pair of coating units (5). A first attachment / detachment unit (9) as shown in FIGS. 1 and 2 is provided on the outer surface of the coating unit (5).

On the other hand, a pair of elevating mechanisms (11) are provided on both sides on the front side of the main frame (2). That is, the frame (1) erected on the side of the main body frame (2)
2) is provided with a rail portion (13) as shown in FIG. 2, and this rail portion (13) is provided with a linear guide lock (1).
A second attachment / detachment unit (17) is provided at the upper end of the lifting / lowering unit (15) engaged through 4).

On the other hand, as shown in FIG. 2, Shiragan
The coating unit (5) provided with (8) and the elevating unit (1)
A connection member (20) is provided between 5), and a spot welding gun (21) is attached to an upper end of the connection member (20). On the rear surface of the lower end of the connecting member (20), a first connecting portion (22) that can be connected to the first detachable unit (9) provided on the outer surface of the coating unit (5).
And a second member provided at the upper end of the elevating unit (15) on the front side of the middle part of the connecting member (20).
Second connecting portion (23) connectable to detachable unit (17)
Is provided. And after the lower end of the connecting member (20)
First connecting portion (22) provided on the surface side and coating unit (5)
The connection of the first attaching / detaching unit (9) provided on the outer surface of the second member is cut off, and the second member provided on the front side of the intermediate portion of the connecting member (20) is disconnected.
Provided at the upper end of the connecting part (23) and the elevating unit (15 )
If ask second removable coupling the unit (17) has coupling member
The spot welding gun (21) attached to the upper end of (20) can be moved up and down together with the elevating unit (15), and conversely, the front side of the intermediate part of the connecting member (20).
Between the second connecting portion (23) provided at the
The first connecting / disconnecting unit (17) provided at the upper end is disconnected and the first connecting unit (20) provided on the rear side of the lower end of the connecting member (20).
If the connection part (22) is connected to the first detachable unit (9) provided on the outer surface of the coating unit (5) , the spot welding gun slides horizontally with the coating unit (5). Then, spot welding of the work (W) as shown in FIG. 8 (B) or (C) is performed.

Next, details of each unit will be described in detail. As shown in FIG. 1, the coating unit (5) includes a slide base (25) that engages with the rail member (4) described above via a linear guide block (24), and a side from the slide base (25). A platform (26) that projects toward
It also has a sealer gun (8) attached to the side of the slide table (25), and a guide block (28) is fixed to a projecting end of the raising table (26) via a base plate (27). Have been. The guide block (28) is slidably engaged with a rail (31) of a main body (30) of the first detachable unit (9) described below.

As shown in FIG. 5, which is an enlarged view of a main part of FIG. 2, the first detachable unit (9) has a U-shaped main body (3).
0) Detachable cylinder unit (32) provided at the center
The cylinder case of the detachable cylinder unit (32) is fixed to the base plate (27) of the coating unit (5), and the tip of the cylinder rod is attached to the main body (30) by a pin (33). Being pivoted. For this reason, the main body (30) moves with respect to the coating unit (5) by the operating stroke of the detachable cylinder unit (32).
It slides back and forth in the direction of the rail (31). Meanwhile, a plate member (34) is attached to the distal end side of the main body (30), and a pair of connecting cylinder units (35) and (35) are provided at the upper end and the lower end of the plate member (34). ing. That is, as shown in FIG. 6 which is an enlarged sectional view, a connection hole is provided in the plate member (34) integral with the main body (30), and a guide bush (36) is fitted into the connection hole. A front flange (37) and a cylinder barrel (38) are integrally mounted around the guide bush (36). A first piston (40) and a second piston (41) are provided in the cylinder barrel (38).
0) is the second piston (41) by the compression spring (42).
Is biased to the side. In addition, a ball (43) that can come and go is provided in the small diameter portion of the first piston (40) toward the inside of the cylinder. The second piston (41) is fitted to the outer peripheral portion of the small diameter portion of the first piston (40) and becomes slidable.
The inner diameter is varied via a step provided on the inner peripheral surface of the fitting. Then, as shown in FIG. 6, when the ball is moved to the left in the figure, the ball (43) is pressed by the narrow inner diameter portion, and the ball (43) is projected into the cylinder of the first piston (40). When the ball moves to the right in the figure, the inner diameter of the contact portion of the ball (43) increases, so that the ball (43) can be sunk into the cylinder of the first piston (40).

On the other hand, the connecting pin (44) inserted into the connecting hole is connected to the first connecting portion (2) of the connecting member (20).
The ring-shaped groove (44a) for engaging with the ball (43) is provided at the tip of the shaft. The ball (43) enters the groove (44a) to connect the connecting pin (44) to the first piston (40).
Works effectively to smooth the engagement between them. When disconnecting the first detachable unit (9) in the state of FIG. 6, the second piston (41) is moved rightward by air pressure, and then the detachable cylinder unit (32) of FIG.
Is retracted, and the connecting cylinder unit (35) is pulled out from the connecting pin (44) and separated. The lower end of the plate member (34) has a sensor (4) capable of detecting the connection state.
5) is provided.

Next, the sealer gun (8) of the coating unit (5) will be described with reference to FIG. FIG. 4 is an enlarged view of the shelagan (8) on the left side of FIG. A swinging member (47) is pivotally connected to a support (46) fixed to the slide table (25) by a pin (48). One end of the swing member (47) is provided with a link member (4).
9), the tip of the cylinder rod of the cylinder unit (50) is linked and connected to the other end, and the adjustment shim (5) is connected to the other end.
A support member (52) is attached via 1).
Therefore, when the cylinder rod moves up and down by the operation of the cylinder unit (50), the swing member (47) swings around the pin (48) axis together with the support member (52). This swinging is for retracting the sealer gun (8) to a position where it does not interfere, such as when the sealer is not applied, as described later. The sealer gun (8) and the bracket (53) are attached to the support member (52). Then, the work (W) is pressed from above by the ball holding member (54) attached to the tip of the bracket (53), and the work (W) during application by the nozzle portion (8a) of the sealer gun (8) is prevented from rising. .

Next, the structure of the second detachable unit (17) provided above the elevating unit (15) is shown in FIG.
It will be described based on. Base (5) of lifting unit (15)
6), an end flange (57) is fixed by bolts, and a cylinder barrel (58) is fixed to the end flange (57) by bolts. Further, a head flange (59) is also bolted to the cylinder barrel (58), and these together form an outer shell of the second detachable unit (17). Cylinder barrel (5
8) includes a sleeve (6) having a plurality of ball storage holes.
0) is provided by being urged by a compression spring (64), and the outer periphery of the sleeve (60) and the cylinder barrel (5) are provided.
A ring-shaped auxiliary piston (61) and a presser piston (62) are provided, which are slidably in contact with the inner periphery of 8). The ball (6) is inserted into the ball storage hole of the sleeve (60).
3) is provided so that the sleeve (60) can freely move in and out of the cylinder, and the inner peripheral surface of the presser piston (62) pushes or releases the ball (63).
The diameter is different through the step. In addition, the rib rib piston (6
1) is configured such that the sleeve (60) can be pressed against the end flange (57) side by engaging with the flange portion at the end of the sleeve (60). The connection bin (65) of the second connection portion (23) of the connection member (20) enters into the sleeve (60), and a ring-shaped groove (65a) is formed at the tip of the connection pin (65). It is formed so that the above-mentioned ball (63) can be inserted. At this time, the compression spring (64) effectively works for smooth engagement between the two. At the time of connection, the groove (65a) and the ball (63) are engaged to move the holding piston (62) downward, so that the ball (63)
Hold down. Thereafter, the auxiliary piston (61) is moved downward to move the sleeve (60) to the back, and the connecting member (20)
Between the second connecting portion (23) and the head flange (59). That is, the spot welding gun (21) attached to the connecting portion village (20) is stably supported. or,
In order to further enhance such stability, the end flange (5
A guide member (66) is bolted to the inside of the center of (7), and a small hole at the tip of the connecting pin (65) can be fitted and held by the guide hole of the guide member (66). To release the connection, the pressing of the ball (63) is released by moving the pressing piston (62) upward.

The outline of the operation of the sealer coating apparatus of the present invention having the above configuration is as follows. First, FIG.
When the sealer (a) is applied to the work (W) as described above, the spot welding gun (21) is unnecessary, so that the work (W) is evacuated to a place where it does not hinder the application of the sealer. That is, the connection of the first detachable unit (9) is released, the second detachable unit (17) is connected, and the elevating unit (15) is lowered (the position indicated by the chain line in FIG. 2). For this reason, the connecting member (20) and the spot welding gun (21) are also lowered together with the elevating unit (15), so that they are in a position where they do not interfere. The sealer (a) is applied while moving the application unit (5) along the rail member (4).

Next, a work (W) as shown in FIG.
In the case of (Wo) welding, after the lower end of the connecting member (20)
First connecting portion (22) provided on the surface side and coating unit (5)
Connecting the first detachable unit (9) provided on the outer surface of the
A second connecting portion provided on the front side of the intermediate portion of the connecting member (20)
(23) and a second unit provided at the upper end of the lifting unit (15) .
The detachable unit (17) is separated. Then, the lifting unit (15) descends. On the other hand, the sealer gun (8) is unnecessary and needs to be retracted, but is tilted by the cylinder unit (50) in FIG. Then, spot welding is performed while moving the spot welding gun (21) along the rail member (4).

Next, a work (W) as shown in FIG.
When both the welding of (Wo) and the application of the sealant (a) are performed, the above operations may be performed in order. As described above, since the apparatus of the present invention has the same apparatus for the left-right symmetry, the operations on both end faces of the work (W) can be performed simultaneously.

[0017]

As described above, the sealer coating apparatus of the present invention requires only one piece of equipment such as a work holding jig and a slide mechanism, which were conventionally required for each of the coating apparatus and the spot welding apparatus. In addition, the amount of capital investment can be greatly reduced, and the space required for installation is reduced to about half. In addition, for a work that requires a mixing operation of the sealer coating device and the spot welding, it is possible to eliminate the trouble of moving and transporting the work, thereby contributing to an improvement in the operation rate.

[Brief description of the drawings]

FIG. 1 is a plan view of a sealer coating device.

FIG. 2 is a side view seen from the X direction in FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is an enlarged view of the shelagan of FIG. 3;

FIG. 5 is an enlarged view of a first detachable unit of FIG. 2;

FIG. 6 is an enlarged sectional view of a connecting cylinder unit.

FIG. 7 is an enlarged sectional view of a second detachable unit.

FIG. 8 is a perspective view showing the form of various works.

[Explanation of symbols]

(1) sealer coating device, (4) rail member, (5) coating unit, (8) sealer gun, (9) first detachable unit, (13) rail section, (15) elevating unit, (17) second detachable Unit, (20) connecting member, (21) spot welding, (22) first connecting portion, (23) second connecting portion, (47) swing member, (48) pin, (W), (Wo) work (A) a sealer;

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B05C 5/00 101 B05B 12/00-12/14 B23K 11/10-11/11

Claims (3)

(57) [Claims] 1. A sealer coating apparatus in which the application of a sealer and the spot welding are performed by the same apparatus, the apparatus includes a coating unit movable horizontally along a horizontal rail, and a coating unit movable up and down along a vertical rail. a lifting unit, a connecting freely connecting member through each detachable unit for these coating unit and lifting unit, attach the Shiragan in the coating unit, upon application sealer material is attached spot welding gun to the connecting member Coating Uni
The first connection part and the
Connected to the attachment / detachment unit of the lifting unit during welding
Spot welding gun characterized by having a second connecting portion
A sealer coating device comprising: 2. The coating composition according to claim 1, wherein
Pin is pivotally attached to a part of the
To a position where it does not interfere with the spot welding gun.
Spot mounted on swinging member to be evacuated
Sealer applicator equipped with welding gun. 3. The spot welding gun according to claim 1 is mounted.
Of the lifting unit to which the second connecting portion of the connecting member is connected
The detachable unit moves along the vertical rail when applying sealer.
To move vertically so that it does not interfere with the application of the sealer.
A detachable unit that retracts the spot welding gun
Sealer dispenser with spot welding gun
Place.