JP2005104374A - Welding device of car body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a welding device of a car body, further quickly replacing a tool in changing the type of a car. <P>SOLUTION: In the welding device of the car body, a welding station is accompanied by: a tool storage zone provided with a positioning member for positioning a car body panel member on one side and storing two or more tools corresponding to different types of cars; and a tool carrying zone provided with a setter device holding the tool corresponding to a new type of a car moved in the lateral direction from the storage zone and carrying the same in the longitudinal direction in replacing the tool due to a change of type of the car. The setter device regulates the movement of the tool in the lateral direction when the tool is moved to the carrying zone, moves the tool in the longitudinal direction to the setter device side until the reference surfaces of the tool and the setter device abut on each other, and lowers the tool until the reference surfaces of the tool and the setter device abut on each other, thereby positioning the tool left and right, forward and backward, and up and down. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle body welding apparatus that positions and welds vehicle body panel members of an automobile.

  As is well known, when assembling a car body of an automobile, basic panel members constituting the car body such as a floor panel, a cab side panel, and a roof panel are positioned relative to each other, and the car body panel members in this positioning state are mutually connected. Are welded at the welding station. Such welding of vehicle bodies requires positioning jigs corresponding to the panel members in order to mutually position the vehicle body panel members at the welding station. However, such positioning jigs are quite large. Since the weight increases, it is generally not easy to handle, store or exchange the jig, and it is important that the jig can be handled safely and efficiently in these cases. In addition, in recent years, with the increase in the number of vehicle types that respond to the diversification of user preferences, the body assembly line is also efficiently and efficiently at the required timing for each vehicle type on a single line. There is a need to be able to assemble. Therefore, in the car body welding process, it is necessary to prepare respective welding jigs corresponding to many vehicle types, and when changing the vehicle type, these are efficiently sent to the welding station or set station, and quickly. It is important to be able to change jigs. For this purpose, for example, in Japanese Patent Application Laid-Open No. 6-277888, a welding station provided with welding means for welding at least one of a floor panel and a roof panel and a cab side panel in a positioned state, and the cab side A jig storage zone for storing a cabside jig for positioning the panel, a jig conveyance rail laid between the jig storage zone and the welding station, and the jig in the jig storage zone A plurality of branch rails branched from the transport rail, and corresponding to each branch rail, with a predetermined cabside jig held, a predetermined position on the branch rail and the above-described transport rail A traveling jig carriage that can travel between a predetermined position in each welding station, and each traveling jig carriage Welding device of the vehicle body different cab side jig according to a difference in vehicle type is held is disclosed.

JP-A-6-277888

  However, in the welding apparatus disclosed in the above-mentioned Patent Document 1, when exchanging a jig in accordance with a vehicle type change, a traveling jig carriage holding the used cabside jig is used as a jig storage zone dedicated to the carriage. Since the travel jig carriage holding the cab side jig corresponding to the next vehicle type is moved from its storage position to the welding position after it is almost completely returned to the position, it takes time to replace the jig. Moreover, in the welding apparatus disclosed in Patent Document 1, since the rail corresponding to each jig is provided by branching from the jig transport rail, the movement distance of the jig is long, and the time required for replacement is long. It takes.

  An object of the present invention is to provide a welding apparatus for a vehicle body that can be used for a plurality of vehicle types and that can change jigs more quickly when the vehicle type is changed.

  For this reason, the invention according to claim 1 of the present application is provided with a welding device for welding a vehicle body panel member of a vehicle, wherein the vehicle body panel member is welded in a state where the vehicle body panel member is mutually positioned. A welding station and a positioning member for positioning the vehicle body panel member on one side, a jig storage zone for storing a plurality of jigs corresponding to different vehicle types, and when exchanging a jig accompanying a vehicle type change, A jig provided with a setter device that holds a jig corresponding to a new vehicle type that slides in the first direction from the storage zone and transports it in a second direction orthogonal to the first direction. The setter device is configured such that when the jig is slidably moved to the jig conveyance zone, the setter device moves the jig in the first direction. The first positioning means for positioning the jig in the first direction by restricting the movement and the positioning reference surfaces provided on the sides where the jig and the setter device face each other abut each other. Until the jig is moved to the setter device side in the second direction to position the jig in the second direction, and the lower end side of the jig and the above-mentioned opposite The jig is lowered in a third direction orthogonal to the first and second directions until the positioning reference surfaces provided in the setter device portions are in contact with each other. It has the 3rd positioning means which positions the jig | tool, It is characterized by the above-mentioned.

  The invention according to claim 2 of the present application is the invention according to claim 1, wherein the setter device guides the jig when the jig is slidably moved to the jig conveyance zone. The guide means includes a mechanism that allows the jig to move toward the setter device in the second direction when the second positioning means is actuated. is there.

  Further, the invention according to claim 3 of the present application is the operation according to claim 1 or 2, wherein the positioning member provided on one side of the jig is operated after the operation of the third positioning means. It is characterized by comprising connection means for connecting the piping system and the working piping system for operating the first, second and third positioning means provided on the setter device side.

  According to the invention of claim 1 of the present application, the welding jig can be quickly replaced in accordance with the change of the vehicle model to be welded at the welding station.

  Further, according to the invention according to claim 2 of the present application, when the jig is positioned on the setter device side, the jig can be positioned without causing distortion deformation, thereby positioning the vehicle body panel member. Can be improved.

  Furthermore, according to the invention which concerns on Claim 3 of this application, both working piping systems can be connected with positioning of the jig | tool with respect to a setter apparatus, and electric power supply air supply can be ensured.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the welding apparatus taken up here is basically each body panel member constituting the vehicle body of the automobile, that is, the floor panel constituting the floor surface of the vehicle body and the left and right cab side panels constituting the side surface portion of the vehicle body. By positioning and welding the roof panel constituting the passenger compartment ceiling part to each other, the basic outer plate portion of the vehicle body is assembled. In the present embodiment, in addition to the vehicle body panel members described above, The cowl / dash assembly that separates the passenger compartment from the engine compartment is also welded at the same time. In the present embodiment, the floor panel is supplied as an underbody in a state where subparts (for example, left and right side sills and reinforcement) are attached to the floor panel. Similarly, the roof panel is supplied as a roof assembly with sub-parts such as reinforcement attached.

  Further, in the above welding apparatus, even if the vehicle type to be welded is changed, it is possible to cope with this, that is, the vehicle body for a plurality of vehicle types (for example, three vehicle types A to C) in one line. Can be welded. In the following description, those dedicated to each vehicle type A to C (for example, a welding jig) are displayed with the alphabetical letters A to C added after the numbers. However, when it is not necessary to indicate the distinction of the vehicle type, the above alphabetical code is not added and only the numeric code is displayed.

FIGS. 1 and 2 are a plan view and a side view, respectively, showing a welding station in a welding apparatus for a vehicle body according to an embodiment of the present invention, a jig transport zone and a jig storage zone that are configured to accompany the welding station. It is. The welding station 2 is configured on a vehicle body production line 1 that extends in one direction (the direction indicated by the arrow X in the drawing, hereinafter referred to as the X direction). Here, each vehicle body panel member constituting the vehicle body of the automobile is arranged. By positioning and welding to each other, the basic outer plate portion of the vehicle body is assembled. A pair of jig conveyance zones 3 are configured to extend in a direction perpendicular to the production line 1 (a direction indicated by an arrow Y in the drawing, hereinafter referred to as a Y direction) with the welding station 2 interposed therebetween. . The jig conveyance zone 3 is provided with a setter device 20 that conveys and positions the jigs 10A to 10C for the vehicle types A to C with respect to the welding station 2 while holding them. The setter device 20 is slidably attached in the Y direction to the traveling rails 4 arranged so as to extend in parallel with each other in the jig transport zone 3, and is driven by a server motor (not shown).
In addition, although each jig conveyance zone 3 has a structure which is bilaterally symmetric with respect to the welding station 2, it basically performs the same operation. Therefore, in the following, in the traveling direction of the production line 1 Only the jig conveyance zone configured on the right side will be described.

Further, the pair of jig storage zones 5 is configured to extend in the vertical direction (X direction) with respect to the jig conveyance zone 3 with the jig conveyance zone 3 interposed therebetween. In each jig storage zone 5, a plurality (two in this embodiment) of jig storage sections 6 are arranged in parallel, each facing the jig conveyance zone 3 at one end side, It arrange | positions so that the jig | tool storage part 6 in the other side may be opposed. With this arrangement structure, each jig storage unit 6 can hold the jigs 10 </ b> A to 10 </ b> C on the same plane as the jig storage unit 6 on the opposite side across the jig conveyance zone 3. Each jig storage unit 6 includes a server motor as a moving means for driving the jigs 10A to 10C to move in a sliding manner in the X direction between the jig transport zone 3 and the jig storage zone 5. 7 is provided.
In the following description, “left-right direction” represents the X direction in FIGS. 1 and 2, “front-rear direction” represents the Y direction, and “up-down direction” represents the Z direction. It shall represent.

In the welding station 2, any one of the jigs 10 </ b> A to 10 </ b> C for the vehicle types A to C is conveyed while being held by the setter device 20 in the jig conveyance zone 3, and the other jigs are conveyed to the jig storage zone 5. The vehicle type jig storage unit 6 holds and stores them. In FIGS. 1 and 2, the jig 10 </ b> A for the vehicle type A is positioned with respect to the welding station 2 while being held by the setter device 20 on the jig conveyance zone 3, and is used for the vehicle types B and C (not shown). A state in which the jigs 10B and 10C are stored in the jig storage unit 6 is shown.
When changing the vehicle model to be welded at the welding station 2, the used jig and the stored jig are moved and replaced in the jig transport zone 3 and the jig storage zone 5. Is done.

FIG. 3 is an explanatory diagram showing a flow of exchanging the jig 10 in accordance with a change in the vehicle type to be welded (change from vehicle type A to B). First, in the state shown in FIG. 3A, the jig A is positioned with respect to the welding station 2 while being held by the setter device 20 when the panel member constituting the vehicle type A is welded. In this state, the jigs 10 </ b> B and 10 </ b> C are held by the jig storage units 6 in the jig storage zone 5.
Next, when the welding of the vehicle type A is completed, the jig 10A is moved in the Y direction to a position adjacent to the jig 10B corresponding to the vehicle type B while being held by the setter device 20 in the jig conveyance zone 3. ((B) of FIG. 3).
Subsequently, the two adjacent jigs 10A and 10B are simultaneously moved in the slide direction in the X direction, whereby the jig 10A that has been used until then is stored in the jig storage unit 6 in which the jig 10B is stored. Is stored in the jig storage section 6 on the opposite side across the jig conveyance zone 3, while the jig 10 </ b> B to be used next is sent out to the jig conveyance zone 3 and held in the setter device 20. ((C) of FIG. 3).
Finally, it is moved in the Y direction by the setter device 20 and positioned with respect to the welding station 2 ((d) in FIG. 3).

4 and 5 are a front view and a perspective view of the jig 10, respectively. The jig 10 has a substantially flat main body, and a plurality of positioning members 11 for holding and positioning various panel members constituting the vehicle body are provided on the front side facing the welding station 2. ing. In addition, as these jig | tool 11, the structure and mechanism conventionally known are employ | adopted and description here is abbreviate | omitted. A plurality of wheels 12 are provided on the lower end side of the jig 10 so that the main body of the jig 10 is movable in the X direction between the jig storage zone 5 and the jig transport zone 3.
Further, as can be seen from FIG. 5, the jig 10 has engaging pieces 15 and 16 having a substantially L-shaped cross section projecting to the back side, respectively, near the center and the lower end side in the vertical direction (Z direction). Have.

  In this embodiment, various structures and mechanisms are employed in the setter device 20 in order to convey the jig 10 while stably holding it in an upright state and to accurately position the jig 10 with respect to the welding station 2. ing. Hereinafter, the setter device 20 employing such a positioning mechanism will be described in detail. 6 is a plan view of the setter device 20, and FIGS. 7 and 8 are a longitudinal sectional explanatory view and a side view of the setter device 20 taken along the line MM in FIG. 6, respectively.

The setter device 20 has a slider 21 on its lower end side so as to be slidable in the Y direction on the traveling rails 4 arranged so as to extend parallel to each other in the jig transport zone 3. Further, the setter device 20 is a wheel provided on the lower end side of the jig 10 in order to enable the jig 10 to slide between the jig storage zone 5 and the jig transport zone 3 in the X direction. Corresponding to 12, a traveling rail 22 is provided. The travel rail 22 is connected to the rod 23a of the cylinder 23 via the link member 24, and can be raised and lowered in the vertical direction (Z direction) according to the linear operation of the rod 23a. In this embodiment, a pair of cylinder units including a cylinder 23 and a link member 24 are provided, and an interlocking rod 25 that extends along the traveling rail 22 and is connected to the link member 24, and the interlocking shaft 25 and the traveling rail 22 are connected to each other. By providing the auxiliary link member 26 to be connected, the traveling rail 22 is supported at a total of four points.
The jig 10 can be slidably moved via the wheels 12 in a state where the traveling rail 22 is raised by the cylinder 23.

  Further, as can be seen from FIG. 7, in order to move the jig 10 smoothly while stably holding it, the setter device 20 has a roller for holding the upper end portion of the jig 10 on its upper end side. Includes rollers 60 </ b> A, 60 </ b> B, and 60 </ b> C that contact the front surface, the back surface, and the upper end surface of the jig 10. Among them, the roller 60 </ b> B that contacts the back surface of the jig 10 is urged against the back surface of the jig 10 in accordance with the driving of the cylinder 62. In addition, the setter device 20 includes a roller that holds the lower end portion of the jig 10, and more specifically, rollers 70 </ b> A and 70 </ b> B that contact the front and back surfaces of the jig 10. Among them, the roller 70 </ b> B that contacts the back surface of the jig 10 is urged against the back surface of the jig 10 in accordance with the driving of the cylinder 72. Although not particularly illustrated, in the setter device 20, a plurality of such rollers 60A, 60B, 60C, 70A, 70B are provided along the left-right direction (X direction).

  Further, the setter device 20 newly holds the jig 10 and various units for positioning the jig 10 in the left-right direction, the front-rear direction, and the up-down direction when the jig 10 is set to the welding station 2. (Pin unit 30, pull-in units 40J, 40K, 40L, roller unit 50). Hereinafter, these units and the structure provided on the jig 10 side correspondingly will be described.

(Jig positioning in the left-right direction)
9 and 10 are a longitudinal sectional view and a plan view of the pin unit 30 for positioning the jig 10 in the left-right direction, respectively. In this embodiment, the setter device 20 is provided with two pin units 30 (see FIG. 6). Each pin unit 30 has a tip pin 32 attached to the tip side of the rod 33 of the cylinder 31 and the jig 10. It protrudes to the front side of the opposing setter device 20 and is held so as to perform a linear operation according to the driving of the cylinder 31.

Corresponding to the pin unit 30, a pin receiving portion 17 is provided on the back side of the jig 10 facing the setter device 20 to receive the tip pin 32 of each pin unit 30 when it is projected. Yes. The pin receiving portion 17 has a substantially U-shaped cross section, and is provided so that a pair of wall portions 17a facing each other spread in the vertical direction (Z direction) and the front-rear direction (Y direction). Then, when the tip pin 32 of the pin unit 30 is fitted between the wall portions 17a of the pin receiving portion 17, the movement of the jig body in the left-right direction is restricted.
In the setter device 20, the pin unit 30 has its tip pin 32 when the jig 10 is attached to or detached from the setter device 20, that is, when the jig 10 enters a slide type with respect to the setter device 20. When going out, it is controlled so as to be retracted to a position where it does not interfere with the pin receiving part 17 on the jig 10 side.

(Jig positioning in the front-rear direction)
FIG. 11 is a longitudinal cross-sectional explanatory view of the first retracting unit 40J for positioning the jig 10 in the front-rear direction. In this embodiment, four first retracting units 40J are provided in the setter device 20 (see FIG. 6), and each first retracting unit 40J is connected to the rod of the cylinder 41J on the upper end side of the setter device 20. A hook member 42J attached to the front end side of 43J protrudes to the front side of the setter device 20 and is held so as to perform a linear operation in the front-rear direction in accordance with the driving of the cylinder 41J.

The hook member 42J is supported so as to be hooked on the upper end of the front side of the jig 10 via the rod 43J of the cylinder 41J. When the hook member 42J is retracted in accordance with the driving of the cylinder 41J, the jig 10 is pulled (pulled) toward the setter device 20 side.
In the setter device 20, the first pull-in unit 40 </ b> J has a hook member 42 </ b> J on the front side of the jig 10 when the jig 10 is slid into or out of the setter device 20. It is controlled so as to project to a position where it does not interfere with the upper end.

  A roller 44J that is rotatable about an axis extending in the left-right direction (X direction) is incorporated in a portion of the hook member 42J that is hooked to the upper end of the front surface of the jig 10. The roller 44J comes into contact with the front side of the jig 10 when the hooking member 42J is hooked on the upper end of the front side of the jig 10, and the jig 10 moves in the up and down direction in this contact state. To turn.

  FIG. 12 is a longitudinal cross-sectional explanatory view of the second retracting unit 40K for positioning the jig 10 in the front-rear direction. In this embodiment, four first retracting units 40K are provided in the setter device 20 (see FIG. 6), and each second retracting unit 40K is a cylinder in the vicinity of the center of the setter device 20 in the vertical direction. A hooking member 42K attached to the tip side of the 41K rod 43K protrudes to the front side of the setter device 20 and is held so as to perform a linear operation in the front-rear direction in accordance with the driving of the cylinder 41K.

Corresponding to the second retracting unit 40K, on the jig 10 side, a pair of engaging pieces 15 having a substantially L-shaped cross section face each other and are smaller than the vertical dimension of the retracting unit 40K. It is provided so as to form a space portion 15a having a slit 15b having a width. The hook member 42K of the second pull-in unit 40K enters the space 15 from the side when the jig 10 enters the setter device 20 in a sliding manner. From this state, when the hooking member 42K is retracted in accordance with the driving of the cylinder 41K, the hooking member 42K is hooked on the inner wall portion constituting the slit 15b of the engagement piece 15, and thereby the jig 10 is pulled toward the setter device 20 side. It becomes.
In the setter device 20, the second retracting unit 40 </ b> K is configured so that the hook member 42 </ b> K is engaged on the jig 10 side when the jig 10 enters or exits the setter device 20. It is controlled so as to project to a position where it does not interfere with the combined piece 15.

  A roller 44K that is rotatable about an axis extending in the left-right direction (X direction) is incorporated in a portion of the hook member 42K that is hooked by the engagement piece 15 on the jig 10 side. The hook member 42 </ b> K has a pair of upper and lower rollers 44 </ b> K to be hooked with respect to each engagement piece 15. Each roller 44K comes into contact with the engagement piece 15 when the hook member 42K is hooked on the engagement piece 15 on the jig 10 side, and the jig 10 moves relatively in the vertical direction in this contact state. To turn.

  FIG. 13 is a longitudinal cross-sectional explanatory view of the third retracting unit 40L for positioning the jig 10 in the front-rear direction. In this embodiment, four first retracting units 40L are provided in the setter device 20 (see FIG. 6), and each third retracting unit 40L is a rod of the cylinder 41L on the lower end side of the setter device 20. A hook member 42L attached to the front end side of 43L protrudes to the front side of the setter device 20 and is held so as to perform a linear operation in the front-rear direction in accordance with the driving of the cylinder 41L.

Corresponding to the third retracting unit 40L, on the jig 10 side, an engagement piece 16 having a substantially L-shaped cross section protrudes on the back side of the jig 10 and its end 16a is bent downward. It is provided to do. The hooking member 42L of the third retracting unit 40L is provided on the inner wall side (the side facing the setter device 20) of the end portion 16a of the engagement piece 16 when the jig 10 is slid into the setter device 20. It is located on the opposite side. From this state, when the hooking member 42L is retracted in accordance with the driving of the cylinder 41L, it is hooked on the end 16a of the engaging piece 16, and thereby the jig 10 is pulled toward the setter device 20 side.
In the setter device 20, the third retracting unit 40 </ b> L interferes with the engaging portion 15 when the hook member 42 </ b> L enters or exits the slide device with respect to the setter device 20. It is controlled so that it protrudes to the position where it does not.

  A roller 44L that is rotatable about an axis extending in the left-right direction (X direction) is incorporated in a portion of the hook member 42L that is hooked by the engagement piece 16 on the jig 10 side. The roller 44L contacts the engaging piece 16 when the hooking member 42L is hooked on the engaging piece 16 on the jig 10 side, and the jig 10 is relatively moved in the vertical direction in this contact state. Rotate in case.

As shown in FIGS. 11 to 13, in the setter device 20, in the vicinity of the first to third drawing units 40 </ b> J, 40 </ b> K, and 40 </ b> L, a block-like protruding portion 28 that protrudes to the front side is provided. . The projecting portion 28 has a tip surface that forms a reference surface for positioning the jig 10 in the front-rear direction. Corresponding to each protrusion 28 on the setter device 20 side, the jig 10 is provided with a block-like protrusion 18 that protrudes to the back side thereof. Similar to the protrusion 28 provided on the setter device 20 side, the protrusion 18 forms a reference surface for positioning the jig 10 in the front-rear direction. When the jig 10 is pulled toward the setter device 20 by the drawing units 40J, 40K, and 40L, the tip surfaces of the protrusions 18 and 28 corresponding to each other come into contact with each other, and the movement of the jig 20 is finished at this point. Thereby, the jig | tool 10 is positioned in the front-back direction (Y direction).
Note that when the jig 10 is pulled by the pull-in units 40J, 40K, and 40L, the cylinders 62 and 72 are operated, and the rollers 60B and 70B can be retracted to the setter device 20 side.

  Incidentally, as described above, the lower end side of the jig 10 is provided with the wheel 12 that enables the jig 10 to move in the left-right direction on the traveling rail 22 equipped on the setter device 20 side. In this embodiment, a contrivance is made to avoid applying a thrust load to the wheel 12 of the jig 10 during the retraction by the retraction units 40J, 40K, and 40L. Specifically, the setter device 20 is provided with a roller unit 50 shown in FIG. In the roller unit 50, a roller 52 attached to the tip end side of the rod 53 of the cylinder 51 protrudes upward in the vicinity of the lower end of the setter device 20, and linear operation in the vertical direction (Z direction) according to the driving of the cylinder 51. Is held to do. The roller 52 is rotatable around an axis extending in the left-right direction, and when the roller 52 is raised to a predetermined position (position indicated by a one-dot chain line in FIG. 14) according to driving of the cylinder 51, the jig 10 is moved. It abuts and supports a part of the lower end surface, and is movable in the front-rear direction (Y direction).

  Before the jig 10 is retracted by the retracting units 40J, 40K, and 40L, the roller 52 is raised, the jig 10 is supported, and then the traveling rail 22 that runs in the left-right direction is lowered to lower the jig 10. A thrust load is not applied to the wheel 12 of the wheel, and the jig 10 can be pulled in smoothly and safely.

(Jig positioning in the vertical direction)
The roller 52 of the roller unit 50 is lowered while supporting the jig 10 from the lower end side in accordance with the driving of the cylinder 51, whereby the jig 10 is lowered. As shown in FIG. 8, a reference surface 19 for positioning the jig 10 in the vertical direction is set on a part of the lower end surface of the jig 10. Correspondingly, a reference surface 29 is set on the setter device 20 at a portion facing the lower end surface of the jig 10. When the jig 10 is lowered as the roller 52 of the roller unit 50 is lowered, the reference surfaces 19 and 29 come into contact with each other at a certain point in time, and the lowering of the jig 20 is finished at this point. Thereby, the jig | tool 10 is positioned in an up-down direction (Z direction).
When the jig 10 is lowered, the hook members 42J, 42K, and 42L of the first to third pull-in units 40J, 40K, and 40L described above can be rotated about an axis extending in the left-right direction (X direction). The rollers 10 are brought into contact with the upper end portion on the front side of the jig 10 and the engaging portions 15 and 16 through the rollers 44J, 44K, and 44L.

  In this embodiment, after the jig 10 is positioned with respect to the setter device 20 in the X, Y, and Z directions, a power supply air supply plug (not shown) provided on the setter device 20 side is further connected to the jig 10. It is inserted and connected to a plug insertion coupler 14 (see FIG. 7) provided on the side. The power supply / air supply plug is attached to the tip of the cylinder rod, and can be linearly operated in the front-rear direction (Y direction) according to the driving of the cylinder. Connected. In such a connected state, power supply and air supply for operating each positioning member 11 on the jig 10 side and various units on the setter device 20 side is secured.

  As is apparent from the above description, according to this embodiment, the jig 10 can be quickly replaced in accordance with the change of the vehicle model to be welded in the welding station 2. Further, the jig 10 can be positioned with respect to the setter device 20 without causing distortion deformation in the jig 10 during positioning, and the positioning accuracy of the panel member constituting the vehicle body can be improved. Furthermore, with the positioning of the jig 10 with respect to the setter device 20, both working piping systems can be connected, and power supply and supply air can be secured.

  Note that the present invention is not limited to the illustrated embodiments, and it goes without saying that various improvements and design changes are possible without departing from the scope of the present invention.

It is a top view of the welding station in the welding apparatus of the vehicle body which concerns on embodiment of this invention, the jig | tool storage zone comprised by it, and the jig conveyance zone. It is a side view of the said welding station and the jig | tool storage zone and jig conveyance zone which were comprised accompanying it. It is explanatory drawing which shows the flow of replacement | exchange of the jig | tool according to the change of the vehicle model used as welding object. It is a front view of the said jig | tool. It is a perspective view of the said jig | tool. It is a top view of the setter apparatus which hold | maintains the said jig | tool in a jig conveyance zone, and positions with respect to a welding station. It is a longitudinal cross-sectional explanatory drawing of the setter apparatus along the MM line | wire in FIG. It is a side view of the setter device. It is a longitudinal cross-sectional explanatory drawing of the pin unit provided in the said setter apparatus for performing the positioning in the left-right direction of the said jig | tool. It is a top view of the said pin unit. It is a longitudinal cross-sectional explanatory drawing of the 1st drawing-in unit provided in the said setter apparatus for performing the positioning in the front-back direction of the said jig | tool. It is a longitudinal cross-sectional explanatory drawing of the 2nd drawing-in unit provided in the said setter apparatus for performing the positioning in the front-back direction of the said jig | tool. It is a longitudinal cross-sectional explanatory drawing of the 3rd drawing-in unit provided in the said setter apparatus for performing the positioning in the front-back direction of the said jig | tool. It is a side view of the roller unit provided in the setter device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Welding station 3 ... Jig conveyance zone 5 ... Jig storage zone 6 ... Jig storage part 7 ... Server motor 10 ... Jig 11 ... Positioning member 12 ... Wheel 14 ... Feed air supply plug 15, 16 ... Engagement piece DESCRIPTION OF SYMBOLS 17 ... Pin receiving part 18 ... Protrusion part 19 ... Reference | standard surface 20 ... Setter device 22 ... Travel rail 23 ... Cylinder 23a ... Rod 24 ... Link member 25 ... Interlocking rod 26 ... Auxiliary link member 28 ... Protrusion part 29 ... Reference | standard surface 30 ... Pin unit 32 ... tip pin 40J, 40K, 40L ... retracting unit 42J, 42K, 42L ... catching member 44J, 44K, 44L ... roller 50 ... roller unit 52 ... roller

Claims (3)

In a vehicle body welding apparatus that positions and welds vehicle body panel members to each other,
A welding station comprising welding means for welding the vehicle body panel members in a mutually positioned state;
A jig storage zone that has a positioning member for positioning the vehicle body panel member on one side surface and stores a plurality of jigs corresponding to different vehicle types, and
A second direction that is perpendicular to the first direction, holding the jig corresponding to the new vehicle type that slides in the first direction from the storage zone when the jig is changed due to the change of the vehicle type. And a jig conveying zone provided with a setter device for conveying in
The setter device
First positioning for positioning the jig in the first direction by restricting the movement of the jig in the first direction when the jig is slidably moved to the jig transport zone. Means,
The jig is moved to the setter device side in the second direction until the positioning reference surfaces provided on the opposite sides of the jig and the setter device contact each other, and the second direction A second positioning means for positioning the jig in
The jig is moved in a third direction orthogonal to the first and second directions until the positioning reference surfaces provided at the lower end side of the jig and the parts of the setter device facing the jig contact each other. And a third positioning means for positioning the jig in the third direction. The setter device includes guide means for guiding the jig when the jig is slidably moved to the jig transport zone, and the guide means is configured as described above when the second positioning means is operated. The vehicle body welding apparatus according to claim 1, further comprising a mechanism that allows the jig to move toward the setter device in the second direction. After the operation of the third positioning means, an operating piping system for operating each positioning member provided on one side of the jig, and the first, second and third mounted on the setter device side The welding apparatus according to claim 1, further comprising a connection unit that connects an operation piping system that operates the positioning unit.

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