KR101361772B1 - Assembly device for fuel filler housing - Google Patents

Abstract

The present invention relates to an assembly device for a fuel filler housing, comprising a first jig having a mounting part for mounting a molded fuel filler housing installed at a specific height; an automatic welding robot installed to be separated from the first jig so as to conduct spot welding at positions where the flange part of the fuel filler housing intersects with both ends of a door mounting bracket installed on the opening part of the fuel filler housing mounted on the first jig; a second jig having a mounting part installed at one side of the first jig at a specific height so as to move and mount the fuel filler housing having the door mounting bracket welded thereto; a drainpipe supply part having a drainpipe installed and fixed to one side surface of the second jig at a specific height so as to stick the drainpipe to the outer side surface of the drainage hole of the fuel filler housing fixed to the second jig; a brazing welding part installed and fixed to be separated from the second jig (40) so as to conduct automatic welding at the fore-end part of the drainpipe adhering to the fuel filler housing fixed to the second jig; a turntable and a driving tool installed below the second jig so as to conduct welding at the fore-end part of the drainpipe in a circumferential direction by rotating the second jig mounted on the fuel filler housing; and a main control panel installed at one side of the second jig so as to control commands for the brazing welding part and control the drainpipe supply part and the driving tool for rotating the turntable.

Description

Assembly unit for fuel filler housing

The present invention relates to a fuel filler housing assembly, and more particularly, to automate the welding process of the door mounting bracket and the drain pipe to the fuel filler housing coupled to the vehicle body to secure labor and shorten production time and improve product quality. The present invention relates to a fuel filler housing assembly device.

In general, a rear side of the vehicle is provided with a fuel inlet for injecting fuel into the fuel tank installed inside the vehicle body, the fuel inlet is formed in the middle of the side panel in consideration of the exterior design of the vehicle (usually C filler) It is formed on the inside of the panel.

Therefore, the fuel inlet is a fuel filler which is recessed to a certain depth toward the inside of the vehicle so that the door maintaining the same design as the outer panel of the vehicle body and the fuel cap coupled with the neck fixed to the door connected to the fuel tank are located therein. It consists of a housing.

The door and fuel filler housing constituting the fuel inlet differ in shape depending on the vehicle type and design. However, a drain hole is provided at one side of the inner depression of the fuel filler housing to communicate with the outside. A drain pipe having a constant length and shape is coupled to the outer surface of the filler housing, and a cross-sectional state of the conventional fuel injection port is shown in FIG. 1.

In addition, the fuel filler housing 5 is mostly made of metal and used in recent years, but plastic housings may be used depending on the vehicle type.

Since the conventional metal fuel filler housing 5 has a structure which is located inside the door 8 and is recessed to a certain depth inside the vehicle rather than the side panel of the vehicle body, the oil contained in the lubricator after the fuel injection falls or remains in rainy weather. Rain water flowing down the car body or water sprayed into the car body at the time of car wash may flow into the gap between the car body and the door and temporarily stay there.

Therefore, in order to drain the oil or water remaining in the fuel filler housing 5 to the outside, a drain hole 7 is provided on one side of the fuel filler housing 5 to the outside, and the outer surface of the drain hole 7 is provided. The drain pipe 6 for guiding and discharging the water discharged from the drain hole in a predetermined direction is coupled.

The drain pipe (6) coupled to the drain hole (7) of the conventional fuel filler housing (5) has been assembled by performing a manual welding operation in a state in which the drain pipe of the fuel filler housing is directly matched to the drain hole of the fuel filler housing. .

However, it is very difficult to produce a uniform quality product because the diameter is very small and the welding part is very inconvenient to perform the welding work, and the quality of the product depends on the skill of the operator.

In particular, as the worker performs the welding directly, the work efficiency decreases, the welding defect frequently occurs, and the working conditions are inconvenient, which increases the fatigue of the worker as well as the risk of many safety accidents.

Prior Art Document 1: Korean Patent Registration No. 10-0811811 (Registration Date: March 3, 2008) Prior Art Document 2: Korean Patent Registration No. 10-0502488 (Registration Date: 2005.07.11)

The present invention has been made to solve the disadvantages generated in the above-described assembly process of the fuel filler housing, to improve the assembly and productivity of the fuel filler housing, to improve the uniform quality and quality of the product It is an object of the present invention to provide a fuel filler housing assembly device.

In addition, an object of the present invention is to provide a fuel filler housing assembly that can improve the assembly method of the fuel filler housing to reduce the fatigue of the worker, secure labor and production costs.

In order to achieve the above object, the assembly of the fuel filler housing according to the present invention has a fuel injection hole and a drain hole is formed in the inner surface recessed to a predetermined depth inward and the fuel filler housing formed with a flange portion on the upper edge of the opening is seated A first jig installed at a predetermined height; The first jig so that automatic spot welding is performed by a program set at a portion overlapping the flange portion of the fuel filler housing at both ends of the door mounting bracket installed to cross the opening of the fuel filler housing seated on the first jig. Automatic welding robot is installed at a certain distance from the position; A second jig installed at one side of the first jig by having a seating portion formed at a predetermined height such that the fuel filler housing to which the door mounting bracket is welded is moved by the automatic welding robot; A drain pipe supply part fixed to the drain pipe so as to closely contact the drain pipe on an outer surface of the drain hole formed in the fuel filler housing fixed to the second jig, and connected to one side of the second jig at a predetermined height; A brazing welding part fixedly installed at a position spaced a predetermined distance from the second jig so that automatic welding is performed at a tip portion of the drain pipe fixed to the fuel filler housing fixed to the second jig; A turntable and driving means installed at a lower portion of the second jig to rotate the second jig in which the fuel filler housing is seated relative to the fixed brazing welding part so that welding is performed in a circumferential direction at a tip end of the drain pipe; And a main operation panel installed at one side of the second jig to control command control for welding the brazing welder, control the drain pipe supply of the drain pipe supply part, and drive means for rotating the turntable.

In particular, the brazing welding part supplies an inert gas to the inert gas supply pipe provided in the welding tip together with a solvent supply part supplying a solvent to bond the drain pipe to the fuel filler housing, and a solvent supplied from the solvent supply part. An inert gas supply unit, a vertical stand installed slightly higher than the second jig, a welding tip support installed at an angle to the second jig at an upper end of the vertical stand, and fixed to the welding tip support, The welding tip is moved forward and backward according to the transmitted control signal and the welding is performed, and the operation cylinder is fixed to the welding tip support to control the forward and backward movement of the welding tip is connected to the welding tip.

In addition, the drive means is a power generating unit including a rotating shaft installed on the central axis of the bottom surface of the turntable, a drive motor and a reducer rotated by an externally supplied power to rotate the rotating shaft, and the speed of the power generating unit and It includes a control operation panel provided in the outer housing of the power generating portion to control the rotation.

In addition, the control operation panel includes a speed control switch for controlling the drive motor speed of the power generating unit, a power switch for controlling the power supply, and a rotation direction control switch for controlling the rotation direction of the drive motor.

In addition, the fuel filler housing in which the drain pipe is assembled in the second jig is moved and seated so that the fuel filler may be fixed at a predetermined height on one side where the second jig is installed to inspect and correct the welding angle and direction of the drain pipe bonded to the fuel filler housing. An inspection jig provided with a housing seat is additionally installed.

The inspection jig has a cylindrical fuel injection hole seating portion formed at a central portion of the fuel filler housing having an inner surface recessed to a predetermined depth so that the fuel injection hole formed on the inner surface of the fuel filler housing is fixed, and the fuel injection hole seating portion is formed. A drain pipe fixing part is inserted into one side of the drain pipe coupled to the fuel filler housing to determine whether or not the welding position and the inclination angle of the drain pipe are appropriate, and the inspection and correction work of the fuel filler housing is possible after welding. It is configured to.

Such a fuel filler housing assembling apparatus according to the present invention is configured to automatically weld a drain pipe having a relatively small size and a welding space to the fuel filler housing, so that a product having a uniform quality can be produced and assembled into parts. It provides a useful effect of reducing the time required to improve productivity.

In addition, the present invention not only reduces the fatigue of the operator caused by the smoke or strong light generated during welding, but also has a useful effect to prevent various safety accidents that may occur during welding, maintaining the health of the worker to provide.

In addition, the assembly apparatus according to the present invention is possible to assemble the fuel filler housing of a variety of vehicles through the simple modification of the structure of the jig or welding program provided to enable the production of a variety of products of different models or models, the profitability of the manufacturer To maximize.

1 is a cross-sectional view of a conventional fuel filler housing installed on one side of a vehicle body;
2 is an embodiment of a fuel filler housing assembled with an assembly apparatus according to the present invention,
3 is an overall configuration diagram of a fuel filler housing assembly according to the present invention,
Figure 4 is an extract of the first jig in the assembly apparatus according to the present invention,
Figure 5 is an excerpt of the second jig and brazing welding portion in the assembly apparatus according to the present invention,
Figure 6 is a side view of the assembly jig and turntable in the assembly device of Figure 5,
Figure 7 is an excerpt of the drain pipe supply unit in the assembly apparatus of Figure 5,
Figure 8 is an excerpt of the brazing welder in the assembly apparatus of Figure 5,
9 is an assembly state of mounting the door mounting bracket on the fuel filler housing using the first jig and the automatic welding robot in the assembly apparatus of the present invention,
10 and 11 are assembled state diagram for mounting the drain pipe to the fuel filler housing using the second jig in the assembling apparatus of the present invention,
12 is a state diagram used of the inspection jig in the assembly apparatus according to the present invention.

The present invention relates to an assembling apparatus of a fuel filler housing, which is capable of completing an assembly of a fuel filler housing by welding a drain pipe and a door mounting bracket to a fuel filler housing that is molded and supplied to a predetermined shape by a press.

In particular, the assembly of the fuel filler housing according to the present invention is provided with a first jig and an automatic welding robot for joining the door mounting bracket to the opening of the molded fuel filler housing, the outer of the fuel filler housing to which the door mounting bracket is bonded. A second jig and a brazing welding part are provided for joining the drain pipe of the hollow member having a certain size and shape to the side drain hole, and in the fuel filler housing where the door mounting bracket and the drain pipe are joined, whether the drain pipe is joined, the direction and It consists of a configuration including an inspection jig provided to check and correct the angle and the like.

Hereinafter, with reference to the drawings attached to the specification will be described in more detail with respect to the assembly of the fuel filler housing (hereinafter referred to as "assembly device").

2 shows an embodiment of the fuel filler housing 10 in which the door mounting bracket and the drain pipe are joined to the assembly apparatus according to the present invention.

Since the fuel filler housing 10 is formed in a different shape according to a vehicle model or a model of the vehicle, the detailed description of the present invention shows an example of a fuel filler housing applied to a specific vehicle type to explain the assembly apparatus of the present invention. In one embodiment, the assembly apparatus of the present invention can be used regardless of the shape or size of the fuel filler housing.

As shown in FIG. 2, a fuel filler housing 10 generally applied to a vehicle has an opening portion 14 formed at one side thereof, and a flange portion having a predetermined width at one edge portion of the opening portion 14. Bending, punching, and piercing are made in a predetermined shape in the mold apparatus so as to have a structure in which the 13 is formed, and is supplied to the assembly apparatus according to the present invention in a state in which primary molding is completed.

Therefore, the fuel filler housing 10 is formed to be recessed in a predetermined depth to the inside of the one side opening portion 14, the circular fuel injection hole 16 penetrates in the direction opposite to the opening portion 14 in the recessed inner surface On one side of the fuel injection hole 16, a small diameter drain hole 17 is formed therethrough.

Thus, the assembling apparatus according to the present invention is provided to bond the door mounting bracket to the opening of the fuel filler housing in which the primary molding is completed, and to join the pipe-shaped drain pipe to the outer surface of the drain hole.

Figure 3 schematically shows the overall configuration of the assembling apparatus 100 according to the present invention, as shown in the drawing assembly device 100 according to the present invention is a fuel filler housing is molded into a predetermined shape is supplied A seating part 22 is provided to securely seat the first jig 20 installed at a predetermined height, and the door mounting bracket installed to cross the opening of the fuel filler housing seated on the first jig 20. The automatic welding robot 30 is installed at a position spaced apart from the first jig 20 so that automatic spot welding is performed by a program set at an overlapped portion of both ends and the fuel filler housing flange portion.

In addition, the seat 42 is formed at a predetermined height so that the fuel filler housing to which the door mounting bracket is welded is moved and seated by the automatic welding robot 30 separately from the first jig 20. The second jig 40 is installed on one side of the first jig 20, and the second jig 40 is fixed to the outer surface of the drain hole formed in the fuel filler housing fixed to the second jig 40. The drain pipe supply unit 50 is connected to one side of the two jig 40 at a predetermined height.

In addition, an automatic welding is performed on a tip portion of the drain pipe that is in close contact with the fuel filler housing fixed to the second jig 40 to be spaced apart from the second jig 40 by a predetermined distance to bond the drain pipe to the fuel filler housing. The brazing weld 60 is additionally installed in position.

Since the brazing welding part 60 is fixedly installed in a specific position and direction, the second jig 40 on which the fuel filler housing is mounted is rotated with respect to the brazing welding part 60 fixedly installed in the circumferential direction at the distal end of the drain pipe. A turntable 70 is installed below the second jig 40 so that welding is performed, and the turntable 70 is configured to be rotatable by a driving means 71 provided at a bottom thereof.

In addition, the second jig to control the command control for welding the brazing welding portion 60, the drain pipe supply control of the drain pipe supply unit 50 and the driving means 71 for the rotation of the turntable 70. One side of the 40 is provided with a main operation panel 80 with a plurality of function switches is configured to control the fuel filler housing.

In addition, after the fuel filler housing in which the door mounting bracket and the drain pipe are assembled is moved and seated in the first jig 20 and the second jig 40, the joint angle and the direction of the drain pipe joined to the fuel filler housing are examined. In addition, the inspection jig 90 in which the fuel injection hole seating portion 92 of the fuel filler housing protrudes upward is additionally installed on one side where the second jig 40 is installed so as to increase the product completeness. do.

The inspection jig 90 is provided with a fuel injection hole seating portion 92 at a tip protruding in a cylindrical shape in which a fuel injection hole is fixed to a central portion so that the inner surface of the final assembled fuel filler housing is fitted into the fuel injection hole. The drain pipe fixing part 94 is fitted with a drain pipe joined to an outer surface of the fuel filler housing seated on the seating part 92 so as to determine and correct the welding position and inclination angle of the drain pipe. Is done.

In the assembly apparatus 100 according to the present invention including such a configuration, the seating process of the fuel filler housing in the first jig 20, the second jig 40, and the inspection jig 90 is not shown in the drawing. Not only can it be configured to be automatically seated using a separate moving means, but the operator detaches the fuel filler housing between each jig, and after fixing the fuel filler housing to the jig, the automatic welding through the operation of the main operation panel (80). This is configured to be done.

The automatic welding robot 30 to be welded in the first jig 20 is automatically welded to the door mounting bracket by a program set in a separate control panel 36, the welding in the second jig 40 The brazing welding part 60 to be performed is configured such that automatic welding of the drain pipe 15 is performed by a program set in the main operation panel 80.

The automatic welding robot 30 is controlled by the control panel 36 installed on one side as shown in the drawing, a pair of electrode tips 34 provided on the front end of the welding arm 32 that can be moved freely Spot welding between the two base materials), and the brazing welding unit 60 is configured to perform brazing welding using a solvent.

On the other hand, Figure 4 shows an extract of the configuration of the first jig 20 described above.

The first jig 20 is formed in two pairs to perform spot welding between the door mounting bracket and the flange portion of the fuel filler housing in the primary jig 21 installed on one side, and the door in the secondary jig 23 installed on the other side. It is configured to perform point welding on the side contact surface of the mounting bracket and fuel filler housing.

The primary jig 21 is formed with a central fixing part 25 into which a fuel injection hole formed through the inner surface of the fuel filler housing is turned upside down in the center thereof and fixed thereto, and a plate to one side of the central fixing part 25. The base 27 is provided with a pedestal 27 for mounting the door mounting bracket, the upper surface of the pedestal 27 is fitted to the through-hole formed in the door mounting bracket to be fixed to the specified position while preventing the departure after the door mounting bracket is seated The fixing protrusion 29 is formed.

And, the first jig 21 and the second jig 23 has a seating portion 22 for mounting the fuel filler housing is configured on the upper end, respectively, a plurality of fixed feet (outside the seating portion 22) ( 24) and the fixture 26 are configured to fix and support the seated fuel filler housing, wherein the plurality of fixing feet 24 are rotated by the operation cylinders 28 provided with hinged upper ends, respectively. It is composed.

Both ends of the door mounting bracket and the edges of the door mounting bracket are fixed to the seating portions 22 of the primary and secondary jigs 21 and 23 on the first jig 20 configured as described above. The welding arm 32 of the automatic welding robot 30 moves to the primary jig and the secondary jig in the state of overlapping the flange formed on the upper and lower sides and the side, and performs spot welding at a plurality of spots as necessary. Done.

And, Figure 5 shows the excerpt of the configuration of the second jig 40 and the brazing welding portion 60 for joining the drain pipe by moving the fuel filler housing to which the door mounting bracket is bonded in the first jig 20, 6 shows the configuration of the second jig 40, the turntable 70, and the driving means 71 in a side view.

As shown in the drawing, the second jig 40 is provided with at least one fastener 44 and a fixed foot 46 at the top thereof so as to be positioned at a predetermined height from the ground or the bottom surface.

The fastener 44 forms a seating portion 42 having a fixing groove 47 formed at an upper end thereof so that one side or a flange portion of the fuel filler housing can be fitted and fixed, and the fixing foot 46 is connected to the fastener 44. It is made of a collapsible structure to press and hold one side of the seated fuel filler housing.

The folding operation of the fixed foot 46 is coupled to one end or one side of the fixed foot 46 is configured to be rotated by the operation cylinder 48 is operated in accordance with the control command of the main operation panel (80).

In addition, the turntable 70 described above is installed at the lower end of the second jig 40.

The turntable 70 is a brazing welding part fixedly installed to perform welding in the circumferential direction on the outer periphery of one end of the drain pipe in a state where the drain pipe is in close contact with the fuel filler housing seated on the second jig 40. In place of 60) the fuel filler housing is operated to be rotatable.

Therefore, the driving means 71 is installed at the lower end of the turntable 70 for rotation.

The driving means 71 includes a rotation shaft 72 installed on the central axis of the bottom of the turntable 70, a power generation unit 73 including a driving motor and a speed reducer that rotate the rotation shaft 72 by an externally supplied power. ), And a control operation panel 75 provided in the outer housing 74 of the power generator to control the power generator 73.

The control panel 75 for controlling the drive means 71 and the turntable 70 is connected to the main control panel 80 so as to be automatically controlled or individually controlled, and the control means 75 includes the drive means. And a speed control switch 76 for controlling the rotation speed of the 71, a power switch 77 for controlling the power supply, a rotation direction control switch 78 for controlling the rotation direction, and an operation indicator. do.

And, as shown in the side view of Figure 6, the sensing rod 79a for checking the rotation of the turntable 70 protrudes a predetermined length on one side of the bottom surface of the turntable 70, the outer housing 74 of the power generating unit 74 A sensing switch 79b for detecting the rotation of the sensing rod 79a that rotates together with the turntable 70 and controlling the rotation amount or the rotation angle of the turntable is installed at the upper end side of the turntable 70, and the sensing switch 79b. ) Is preferably a proximity sensor.

The drain pipe supply unit 50 supplies a drain pipe to the fuel filler housing fixed to the second jig 40 at the rear end of the second jig 40 to closely fix the distal end of the drain pipe to the drain hole of the fuel filler housing. Is installed.

The drain pipe supply unit 50 is one side of the second jig 40, in the embodiment shown in the figure is installed at a certain height on the back of the second jig 40 is a fuel filler fixed to the second jig 40 The lower end is hinged and fixed to the outer surface of the drain hole formed in the housing is provided with a drain pipe supply end 52 bent in a predetermined shape so that the upper end is rotated forward.

In addition, a fixing bracket 54 having one end coupled to one side or both sides of the lower end thereof and the other end coupled to the second jig 40 in order to fix the drain pipe supply end 52 to the second jig 40. And, it is fixed to the second jig 40 by the fixing bracket 54 is connected to the lower end of the drain pipe supply end 52 protruding to the lower portion of the fixing bracket 54 through the drain pipe supply end (up and down operation) 52) is configured to include an operation cylinder 56 for rotating the upper portion of the fuel filler housing fixed to the assembly jig.

In particular, as shown in the excerpt of FIG. 7, the drain pipe supply end 52 is made of a ladle shape, and a drain pipe fixing groove 53 having a predetermined size is formed to a predetermined depth at a tip end thereof so as to have a fuel filler housing. When the drain pipe supply stage 52 is rotated to the side is configured so that the drain pipe tilted therein is not easily separated.

The drain pipe supply unit 50 and the second jig 40 configured as described above are installed on the upper surface of the turntable 70, and the turntable 70 supports the second jig 40 installed on the upper surface thereof and has a lower end thereof. Rotating by the rotating shaft 72 and the driving means 71 provided in the brazing welding portion to be welded in the circumferential direction at the tip of the drain pipe.

On the other hand, Figure 8 shows an excerpt of the configuration of the brazing welding portion 60 and its peripheral device used in the assembly apparatus 100 according to the present invention.

The brazing welding part 60 applied to the present invention is separately installed at one side where the second jig 40 is installed so that the welding tip 63 provided at the tip portion of the second jig 40 is inclined downward at a somewhat higher position. Is installed.

The brazing welding part 60 is a means for brazing welding a drain pipe to a fuel filler housing made of metal. The main component of the brazing welding part 60 is stably supported on the bottom and vertically installed at a vertical height 61. And, the welding tip support 62 is installed to be inclined toward the second jig 40 side from the upper end of the vertical stand 61, the control fixed to the welding tip support 62 and transmitted from the main operation panel 80 The welding tip 63 is installed to move forward and backward according to the signal, and the operation cylinder 64 is installed on one side of the welding tip 63 to control the forward and backward movement of the welding tip 63.

In addition, the welding tip 63 is supplied with a filler metal of a copper wire to weld the two substrates between the drain pipe and the fuel filler housing so that the welding is performed at one side of the vertical stand 61. It is configured to include a solvent supply unit 65 is connected to the tip 63 installed.

In addition, the welding tip 63 is integrally configured with an inert gas supply pipe 66 so that the inert gas is supplied to the welding portion together with the supply of the solvent when welding the drain pipe, and the inert gas supply pipe 66 is separately The inert gas supply part 67 is configured to automatically supply and shut off the inert gas.

In addition, the main operation panel 80 installed in front of the assembling apparatus 100 includes the second jig 40, the drain pipe supply unit 50, the brazing welding unit 60, and the driving means 71 of the turntable 70. As an integrated control panel for controlling the overall, the main control panel 80, the assembly device control unit including an indicator indicating the operating state of the assembly device, the main switch, timer, counter, emergency stop switch, manual and automatic selection switch, etc. 82, a welding control unit 84 including a forward / reverse switch for a welding tip of the welding device, first and second clamp switches, and rotational and home position switches for the operation of a plurality of clamp mechanisms in each forward and backward direction; It consists of (refer FIG. 5).

In addition, the various operation switches provided in the welding control unit 84 can be used when manual operation of each part by operating each switch as needed, when the operation is made by individual operation, the assembly device control unit 82 Timer 83 provided in the adjusts the assembly interval time of the fuel filler housing, the counter 85 automatically counts the assembly quantity of the fuel filler housing, and other operation switches to the general function switches The detailed description thereof will be omitted.

On the other hand, Figure 9 is a state diagram for joining the door mounting bracket and the fuel filler housing using the first jig 20 and the automatic welding robot 30 in the assembly device 100 of the fuel filler housing according to the present invention described above. .

As described above, the work in the first jig 20 is performed after the primary welding work of the door mounting bracket and the fuel filler housing in the primary jig 21, and then finish welding is performed through the secondary jig 23. To perform.

First, after mounting the door mounting bracket on the upper surface of the base of the primary jig 21, the fuel injection hole of the fuel filler housing 10 is fitted to the central fixing portion 25 so that the opening faces the bottom surface.

The door mounting bracket seated on the lower portion of the fuel filler housing 10 is partially overlapped with the flange portion formed at the edge of the opening by crossing the opening of the fuel filler housing.

In this way, when the operation button (not shown) provided separately on one side of the first jig 20 after the mounting of the door mounting bracket and the fuel filler housing, the automatic welding robot installed on one side of the first jig 20 ( The welding arm 32 of 30 is moved, and the spot welding is performed by the applied power while the electrode tip 36 contacts the upper and lower surfaces of the fuel filler housing fixed to the primary jig 21 and the door mounting bracket. Do this.

Since the fuel filler housing seated on the primary jig 21 is fixed, the welding operation for joining both ends of the door mounting bracket to the fuel filler housing while the automatic welding robot 30 moves to one side and the other side of the fuel filler housing is fixed. Do this.

The fuel filler housing in which the primary welding is completed in the primary jig 21 is moved to the secondary jig 23 and seated so that the opening faces upward, and a new fuel filler housing is seated in the primary jig 21.

The automatic welding robot 30 is welded to both ends of the door mounting bracket in contact with the flange portion of the fuel filler housing in the primary jig 21, and then moved to the secondary jig 23 to the secondary jig 23 The spot welding is performed again on the overlapped portion of the fixed fuel filler housing with the door mounting bracket to perform a solid welding of the door mounting bracket and the fuel filler housing, and after the welding operation is completed, the automatic welding robot 30 After retreating to the original position, the worker separates the fuel filler housing from the secondary jig 23 and moves to the second jig 40.

10 and 11 illustrate a working state in which the fuel filler housing moved from the first jig 20 is seated on the second jig 40 to perform welding of the drain pipe.

That is, as shown in Figure 10, the fuel filler housing 10 is fixed to the seating portion of the second jig 40 is mounted in the horizontal direction.

At this time, the fuel filler housing 10 is fixed so that the drain hole is directed upward, the drain of the drain pipe supply unit 50 provided on the rear of the second jig 40 together with the seat of the fuel filler housing 10. The drain pipe 15 is fitted into the pipe supply end 52.

As such, when the operator performs the work through the main operation panel 80 while the fuel filler housing 10 and the drain pipe 15 are fixed to the second jig 40 and the drain pipe supply unit 50, respectively. The drain pipe 15 having the drain pipe fixing end 52 of the drain pipe supply part 50 rotates automatically on the outer surface of the drain hole 17 of the fuel filler housing 10 fixed to the second jig 40. ) Distal end portion.

The turntable 70 is rotated in a state where the drain pipe fixing end 52 of the drain pipe supply unit 50 is rotated toward the fuel filler housing 10 and the drain pipe 15 is in close contact with the fuel filler housing 10. Solvent and inert gas are moved in a state in which the brazing welding part 60 is moved forward to approach the outer periphery of the distal end of the drain pipe 15 in close contact with the drain hole of the fuel filler housing 10 together with the rotation of the turntable 70. Welding is done with the supply of.

After welding is performed in a circumferential direction along the outer periphery of the distal end of the drain pipe 15 in close contact with the drain hole of the fuel filler housing 10 with the rotation of the turntable 70, the drain pipe 15 is pressurized and The drain pipe fixing end 52 of the existing drain pipe supply unit 50 is separated from the drain pipe 15 under pressure and moved to the initial position (see FIG. 11), and the remaining portion is welded by the subsequent rotation of the turntable 70. This is done.

When the drain pipe fixing end 52 continues to pressurize the drain pipe, the fixed welding tip 63 and the drain pipe fixing end 52 collide with each other due to the rotation of the turntable 70. After the welding of a certain portion to the tip of the drain pipe, the drain pipe fixing end 52 is programmed to be separated and spaced apart by the fuel filler housing.

The fuel filler housing 10 in which the welding of the drain pipe is completed through the second jig 40 is separated from the second jig and seated on the test jig 90 separately installed as shown in FIG. 12.

When the fuel filler housing 10 is seated on the inspection jig 90, the drain pipe 15 coupled to the outer surface thereof is inserted into and fixed to the drain pipe fixing part 94 formed at one side of the inspection jig 90. Settle down.

Therefore, after inspecting the direction or the angle of the drain pipe fixed to the drain pipe fixing part 94, the worker adjusts the direction or angle of the drain pipe when the upper end of the drain pipe fixing part 94 and the outer circumference of the drain pipe do not match. Simply modify it.

As such, when one cycle is completed until the drain pipe assembly process, the quantity of fuel filler housings worked at the counter 85 of the main control panel 80 is counted, and the after assembly process of the fuel filler housings is performed through a timer 83. By adjusting the time, the optimized working condition is performed by appropriate time adjustment in consideration of the time required for the fuel filler housing and the drain pipe settling, and the drain pipe assembled and detached fuel filler housing.

When the assembly process is completed, the new fuel filler housing is seated on the first jig 20, and the door mounting bracket and the fuel filler housing are welded, and the fuel filler housing with the door mounting bracket welded to the second jig (40). After moving and seating), welding the drain pipe, and after the welding of the drain pipe is completed, the process of completing the final inspection through the inspection jig 90 is repeated, and the assembly operation of the fuel filler housing is repeatedly performed.

In the above description of the assembling apparatus of the present invention, the door mounting bracket is first welded to the fuel filler housing and then the drain pipe is welded. However, the process sequence of the welding operation is based on the conditions of the workplace and the jig. The order can be different depending on the structure and construction environment of the production line.

In addition, the automatic welding robot 30 is one of the general-purpose spot welding machine that is commonly used installed in the assembly and parts line of the vehicle, the moving distance and the other point of the welding arm equipped with the welding tip is automatically programmed and stored It is configured to be controlled, the detailed description thereof will be omitted.

5, 10: fuel filler housing 6,15: drain pipe
7,17: drain hole 8: door
13: flange 14: opening
16: fuel injection hole 19: door mounting bracket
20: first jig 21: primary jig
22: seating part 23: secondary jig
24: Fixed foot 25: Central fixed government
26: fixture 27: stand
28: operation cylinder 29: fixed projection
30: automatic welding robot 32: welding arm
34: electrode tip 36: control panel
40: second jig 42: seating portion
44: fastener 46: fixed foot
47: fixed groove 48: operation cylinder
50: drain pipe supply part 52: drain pipe supply end
53: drain pipe fixing groove 54: fixing bracket
56: operation cylinder 60: brazing welding part
61: vertical stand 62: welding tip support
63: welding tip 64: operation cylinder
65: solvent supply unit 66: inert gas supply pipe
67: inert gas supply unit 70: turntable
71: driving means 72: rotating shaft
73: power generating unit 74: external housing
75: control panel 76: speed control switch
77: power switch 78: rotation direction control switch
79a: detection rod 79b: detection switch
80: main control panel 82: assembly unit control unit
83: timer 84: welding control unit
85: counter 90: inspection jig
92: fuel injection hole seat 94: drain pipe
100: Assembly device

Claims (7)

A first jig 20 in which a fuel injection hole and a drain hole are formed on an inner surface recessed to a predetermined depth, and a seating part on which a fuel filler housing having a flange portion formed at an upper edge portion of the opening is seated;
The spot welding is performed by a program set at a portion overlapping the flange portion of the fuel filler housing at both ends of the door mounting bracket installed to cross the opening of the fuel filler housing seated on the first jig 20. An automatic welding robot 30 installed at a position spaced apart from the first jig by a predetermined distance;
A second jig 40 having a seating portion formed at a predetermined height such that the fuel filler housing to which the door mounting bracket is welded is moved and seated by the automatic welding robot 30, and installed to one side of the first jig;
The drain pipe is fixed to the drain pipe is fixed to the outer surface of the drain hole formed in the fuel filler housing fixed to the second jig 40 is connected to one side of the second jig 40 at a predetermined height Supply unit 50;
A brazing welding part 60 fixedly installed at a position spaced a predetermined distance from the second jig 40 so that automatic welding is performed on a tip portion of the drain tube fixed to the fuel filler housing fixed to the second jig 40;
The turntable 70 is installed below the second jig 40 to rotate the second jig in which the fuel filler housing is seated with respect to the fixed brazing welding part 60 to be welded in the circumferential direction to the tip of the drain pipe. ) And drive means 71;
The second jig 40 to control the command control for welding the brazing welding unit 60, the drain pipe supply control of the drain pipe supply unit 50 and the drive means 71 for the rotation of the turntable 70. Assembling apparatus of the fuel filler housing, characterized in that it comprises a; main operation panel (80) installed on one side. The method of claim 1,
The brazing welding part 60 is provided to the welding tip 63 together with a solvent supply unit 65 for supplying a solvent to bond the drain pipe to the fuel filler housing, and the solvent supplied from the solvent supply unit 65. An inert gas supply unit 67 for supplying an inert gas to the inert gas supply pipe provided therein, a vertical stand 61 installed slightly higher than the second jig 40, and a predetermined direction from the upper end of the vertical stand toward the second jig. A welding tip support 62 installed at an inclined angle and a welding tip 63 fixed to the welding tip support 62 and moved back and forth according to a control signal transmitted from the main operation panel 80 to perform welding; Assembly device for a fuel filler housing, characterized in that it comprises a working cylinder (64) fixed to the welding tip support (62) connected to the welding tip to control the forward and backward movement of the welding tip (63). 3. The method according to claim 1 or 2,
The drive means 71 is a power generation including a rotation shaft 72 is installed on the bottom center axis of the turntable 70, a drive motor and a reducer for rotating the rotation shaft 72 by the power generated by an external power source. And a control unit 75 provided in the outer housing 74 of the power generator 73 to control the speed and rotation of the power generator 73. Filler housing assembly device. The method of claim 3,
The control operation panel 75 includes a speed control switch 76 for controlling the drive motor speed of the power generating unit, a power switch 77 for controlling the power supply, and a rotation direction control switch for controlling the rotational direction of the drive motor ( Assembly apparatus for a fuel filler housing, characterized in that it comprises a 78). The method of claim 3,
The fuel filler housing in which the drain pipe is assembled is moved and seated in the second jig 40 to inspect and modify the welding angle and direction of the drain pipe bonded to the fuel filler housing. Assembling device of the fuel filler housing, characterized in that the inspection jig 90 is further provided with a fuel filler housing seating portion at a height. The method of claim 5,
The inspection jig 90 has a cylindrical fuel injection hole seating portion 92 formed at a center thereof so that a fuel filler housing having an inner surface recessed to a predetermined depth may be inserted to fix a fuel injection hole formed on an inner surface of the fuel filler housing. ,
A drain pipe fixing part 94 for inserting the drain pipe coupled to the fuel filler housing to one side where the fuel injection hole seating part 92 is formed to determine whether the welding position and the inclination angle of the drain pipe are suitable and can be corrected. Assembly device for fuel filler housing, characterized in that provided. The method of claim 1,
The first jig 20 is
A pedestal 27 on which the supplied door mounting brackets are seated, and a central fixing part 25 into which the fuel injection hole of the supplied fuel filler housing is fitted is fixed to one side of the pedestal 27, and the central fixing part ( A primary jig 21 having a fixture and a fixed foot of a predetermined height around the periphery 25;
Secondary charger having a fixed height and a fixed foot so as to be separately installed on one side of the primary jig 21 to perform additional welding on the overlapping portion of the fuel filler housing and the door mounting bracket joined by the primary jig 21. And (23); assembly device for fuel filler housing, characterized in that the configuration.

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