JP2001270479A - Body assembly equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle body assembling device making it possible to easily and surely confirm the accuracy of assembling vehicle body members within an assembling jig. SOLUTION: This vehicle body assembling device positions previously press molded vehicle body members 101 by means of a regulating plate 11 and combines the members to assemble a vehicle body. The end face 12 of the regulating plate 11 functions as a position checking part for visually checking its position relative to the flange 101a of each vehicle body member 101. While the vehicle body members 101 are positioned by the regulating plate 11 and vehicle body members 103 and 104 are being combined, the relative positions of the flange 101a of the vehicle body member 101 and the end face 12 of the regulating plate 11 are visually checked to determine whether or not the vehicle body member 101 has moved relative to the regulating plate 11, to thereby visually check variations in assembling accuracy within the assembling jig.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body assembling apparatus, and more particularly to a vehicle body assembling apparatus for assembling a body of a vehicle body by assembling press-formed body members.

[0002]

2. Description of the Related Art For example, in an automobile manufacturing plant or the like, a dividing line which is a clearance between a mounting member such as a front hood, a rear gate, a front door, a rear door and a side sill, a quarter panel, a floor, a roof, a rear skirt, etc. which constitute a vehicle body. It is also preferable to assemble with a proper assembling accuracy a surface difference or the like which is a step between the mutual members, from the viewpoint of improving the quality and aesthetic appearance of the vehicle body and reducing the number of correction steps in the post-process.

[0003] For this reason, there is a demand for an assembling accuracy of a vehicle body formed by combining pre-pressed vehicle members. To assemble the body of the vehicle, the press-formed body member is carried into the assembly jig of the body assembling apparatus, and each body member is positioned and held by the clamp device provided on the assembly jig. It is assembled by welding between body members.

However, in this assembly, it is difficult to measure the assembling accuracy of each vehicle body member in the assembly jig for assembling the vehicle body body. Each of the divisions, surface differences, and the like were sampled and measured by an operator using a measuring instrument.

On the other hand, Japanese Patent Laid-Open No. 4-76409 discloses that
Irradiate the measurement object with a light beam while scanning in a predetermined direction,
2. Description of the Related Art A step detecting method has been developed in which reflected light from an object is received and a step is detected based on an upper portion related to the reflected light.

Further, as disclosed in Japanese Patent Application Laid-Open No. 7-25371, a measuring device for measuring a predetermined portion of a work and an assembly jig, a detection switch for detecting a clamped state of the work, and each of the detection switches A body assembly jig adjustment that has a central processing unit that statistically processes data, facilitates the resolution of factors that affect vehicle body accuracy, and improves the efficiency of assembly jig adjustment work to improve vehicle body accuracy A support device has been proposed.

Further, as disclosed in Japanese Patent Application Laid-Open No. 9-175456, in a joint portion in which a plurality of divided members are overlapped with each other and joined by welding, one of the divided members located outside is checked for accuracy in advance. A method of confirming the assembly accuracy of a vehicle body in which a round hole is provided, and a marking is provided in the joint portion of the divided member located inward corresponding to the round hole, and assembly accuracy is detected based on a relative position between the round hole and the marking. Has been proposed.

[0008]

In the measurement by the worker using the measuring instrument, the measurement work for measuring the surface difference and the gap between the adjacent vehicle body members by each worker is troublesome, and the manufacturing is difficult. In order to measure the entire product, it requires a huge amount of work and must rely on random measurements. Since the inspection is performed, a necessary correction cannot be performed in the assembling jig, and the correcting work after the assembling requires many man-hours.

According to the above-mentioned Japanese Patent Application Laid-Open No. 7-25371, the adjustment work of the assembly jig can be made more efficient by the body assembly jig adjustment support device. However, such a body assembly jig adjustment support device including a measuring device, a detection switch, and a central processing unit is complicated and requires a lot of equipment costs.

According to Japanese Patent Application Laid-Open No. 4-76409, an object is irradiated with a light beam, reflected light from the object is received, and a step is detected based on the information.
The step can be measured. However, it is difficult to obtain a high-precision measurement result when the part to be measured is divided, that is, there is a gap between adjacent members, and particularly when the member has a curved surface, and the equipment requires a lot of equipment costs. It is.

According to the assembling accuracy check method disclosed in Japanese Patent Application Laid-Open No. 9-175456, the relative hole is formed by the cooperation of the round hole provided in one of the divided members and the stamp provided in the other divided member. Since accurate positioning is performed, the assembly accuracy can be confirmed in the assembly jig.

[0012] However, it is troublesome to visually confirm the relative position of the other divided member with the stamp through the small-diameter round hole formed in one of the divided members. Doing so has an effect on the quality and aesthetics of the vehicle body, so that the place of formation is greatly restricted, and it is difficult to ensure sufficient assembly accuracy.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a vehicle body assembling apparatus capable of easily and surely confirming the accuracy of assembling a vehicle body member in an assembly jig without requiring capital investment. It is in.

[0014]

According to a first aspect of the present invention, there is provided a vehicle body assembling apparatus for positioning a preformed body member by a regulating plate and assembling the body member into a body body. In the assembling apparatus, the regulation plate includes a position confirmation unit for visually confirming a relative position to a reference position attached to the positioned body member.

According to the first aspect of the present invention, while the body member pre-press formed is positioned by the regulating plate and the body members are sequentially assembled, the reference position attached to the body member is
By visually checking the relative position of the position confirmation part of the regulating plate,
The relative position between the vehicle body member and the position confirmation portion of the regulating plate can be confirmed, and a change in the assembly accuracy in the assembly jig can be visually confirmed. As a result, it becomes possible to specify a body member and a portion of the body member that require measures for improving the assembly accuracy,
Efficient measures can be taken, resulting in a reduction in post-assembly man-hours.

According to a second aspect of the present invention, in the vehicle body assembling apparatus of the first aspect, the position confirmation portion is an end face of the regulating plate.

According to the second aspect of the present invention, since the position confirming portion is formed by the end face of the regulating plate itself, the position confirming portion is formed without adding a member or the like for the position confirming portion, thereby simplifying the apparatus. In addition, since the end face of the regulating plate, which can be easily visually checked, functions as a position checking unit, the visibility is excellent, and a change in assembly accuracy can be easily checked.

According to a third aspect of the present invention, in the vehicle body assembling apparatus of the first aspect, the position confirming portion is a hole formed in the regulating plate.

According to the third aspect of the present invention, the position confirmation portion is formed by a hole formed in the regulation plate itself, and the existing position regulation plate is perforated without adding a member for the position confirmation portion. Thereby, the position confirmation part can be easily formed.

According to a fourth aspect of the present invention, in the vehicle body assembling apparatus according to any one of the first to third aspects, the reference position is a bent portion formed on the vehicle body member.

According to the fourth aspect of the present invention, a bent portion such as a flange of the body member itself can be used as the reference position, and the reference position can be set without affecting the shape of the body member.

According to a fifth aspect of the present invention, in the vehicle body assembling apparatus of the first to third aspects, the reference position is an edge of the vehicle body member.

According to the fifth aspect of the present invention, the edge of the body member itself can be used as the reference position, and the reference position can be set without affecting the shape of the body member.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle body assembling apparatus according to the present invention will be described below with reference to FIGS.

FIG. 1 is an explanatory view showing an outline of a jig 1 in an assembling apparatus for assembling a vehicle body 100.
Each preformed body member is carried into the assembly jig 1, and each body member is positioned and held by each clamp device 10 provided on the assembly jig 1, and spot welding is performed between the body members. Joined by

FIG. 2 is a cross-sectional view taken along the line II of FIG. 1 showing an example of the clamp device 10 which is an essential part of the clamp device 10 for assembling each press-formed body member at the rear part of a wagon-type vehicle body 100. It will be explained by. In FIG. 2, an arrow Y indicates a vehicle body widthwise direction and an arrow X indicates a rear side of the vehicle body.

As shown in FIG. 3, a rear perspective view of the body 100, and FIG. 4 shows a cross-sectional view taken along the line II-II of FIG. A quarter panel rear outer 101 which is curved so as to extend from the rear side surface to the rear surface and has a flange portion 101a bent along the end portion, and is connected to the flange portion 101a and extends forward to have a substantially L-shaped front end. Extension panel end 102 formed in a bent shape, and flanges 103a formed at both ends.
And 103b are each coupled between the extension quarter panel end 102 and the side of the quarter panel rear outer 101 to form a vertically extending closed cross section A, and a flange 104a formed at one end. Is the quarter panel rear end 103
And a phosphorus hose D pillar 104 which is connected to the

A rear gate 110 for opening and closing a door opening formed between the left and right quarter panel rear outers 101 is provided. As shown by a two-dot chain line in FIG. 3, the rear gate 110 covers the extension quarter panel end 102 with a side portion when the rear gate 110 is closed, and the edge 110a extends along the flange 101a of the quarter panel rear outer 101. To form a dividing line having a predetermined gap a, and
Are preferably arranged so as to be smoothly continuous without any surface difference from the quarter outer panel 101.

As shown in FIG. 2, the clamp device 10 for positioning and holding these vehicle body members has a first regulating plate 11 and a second regulating plate 21 which can be opened and closed by the expansion and contraction of a cylinder or the like.

The first restricting plate 11 has a plate-like shape, and the restricting surface 12 is curved so as to be fitted from the side surface of the quarter outer panel 101 to the rear surface, and the restricting surface 12 against the rear outer plate 101 of the quarter panel. A bent portion serving as a reference position of the quarter panel rear outer 101 when contacted, that is, an end face 13 serving as a visible position confirmation portion is formed at a position corresponding to an extension of the flange 103a formed by press molding. .

Further, the end surface 1 is provided on the side surface of the first regulating plate 11.
Indicating means, for example, a mark 14 such as an arrow, is attached so that it can be easily confirmed that 3 is a position confirmation unit.

On the other hand, the second regulating section 21 is
In a state in which a predetermined portion of the quarter panel rear outer 101 is in contact with the regulating surface 12, a regulating surface 22 is formed which contacts an extension quarter panel end 102 coupled to the quarter panel rear outer 101.

Next, the operation of the clamp device 10 will be described.

The quarter panel rear outer 101 and the extension quarter panel end 102, which have been welded together in advance, are carried into the assembly jig 1 by a robot or the like, and the rear end of the quarter panel rear outer 101 is first restricted by the clamp device 10. It is positioned at a predetermined position by contacting the regulating surface 12 formed on the plate 11, and the quarter is further defined by the regulating surface 12 of the first regulating plate 11 and the regulating surface 22 of the second regulating plate 21 as shown in FIG. By clamping the panel rear outer 101 and the extension quarter panel end 102, the quarter panel rear outer 101 and the extension quarter panel end 102 are held.

In a state where the quarter panel rear outer 101 and the extension quarter panel end 102, which are integrally connected by the first regulating plate 11 and the second regulating plate 21, are clamped, a flange 101a serving as a reference position of the quarter panel rear outer 101 is provided. And the first to be the position confirmation unit
The position of the regulating plate 12 relative to the end surface 13, that is, the flange 10
The position of the quarter panel rear outer 101 and the extension quarter panel end 102 by the clamp device 10 can be easily confirmed by visually confirming the deviation between the extension line 3 and the end face 13.

Next, the quarter panel rear end 103 is carried by a robot or the like between the extension quarter panel end 102 and the side surface of the quarter panel rear outer 101, and the flanges 103a and 103b of the quarter panel rear end 103 are respectively connected to the extension quarter panel end 102. And quarter panel rear outer 1
1, the flange 103a of the quarter panel rear end 103 and the extension quarter panel end 102 and the flange 103b and the side of the quarter panel rear outer 101 are welded to each other by a welding robot or the like to join the quarter panel rear end 103.

Even when the quarter panel rear end 103 is loaded and connected, the quarter panel rear outer 101 is also connected.
By visually confirming the relative position between the flange 101a and the end surface 13 of the first regulating plate 12, the presence or absence of a displacement of the quarter outer panel 101 and the like and the state of occurrence of the displacement can be easily confirmed.

Further, the phosphorus hose D pillar 104 is carried in by a robot or the like, and the flange 104a thereof is welded to the quarter panel rear end 103 by a welding robot or the like, and the phosphorus hose D pillar 104 is connected, as shown in FIGS. 3 and 4. The rear part of the vehicle body 100 is formed.

When the phosphorus hose D pillar 104 is loaded and connected, the flange 101a serving as a reference position and the first
By visually confirming the relative position of the regulating plate 12 with respect to the end surface 13, it is possible to easily confirm the presence or absence of a displacement of the quarter panel rear outer 101 and the like and the occurrence of the displacement.

Similarly, in each part of the vehicle body 100 such as the floor, side rails, side sills, and roof, the corresponding press-formed member is carried into the jig 1 and held at a predetermined position by the clamp device. The vehicle body 100 is assembled and assembled together by a welding robot or the like. In each part, the relative position between the reference position of the vehicle body member and the end face of the regulating plate serving as the position confirmation part is visually confirmed, so that the relative position of the main body member and the occurrence of deviation can be easily confirmed. it can.

By visually observing the relative position and the state of occurrence of the deviation, it is possible to visually confirm the vehicle body accuracy and the accuracy change of each part in the process of assembling the vehicle body 100, and to take countermeasures.

Generally, a quarter panel rear outer 101, an extension quarter panel end 102, a quarter panel rear end 103,
When assembling the phosphorus hose D pillar 104, etc.
As shown by an arrow S, there is a tendency that a displacement occurs in the vehicle width direction on the outer side and in the forward direction of the vehicle body along the regulation surface 12 of the first regulation plate 11, and when this displacement occurs, the flange 101a of the quarter panel rear outer 101 The gap a between the rear gate 110 and the edge 110a of the rear gate 110 is excessively large, so that a uniform dividing line cannot be secured, and a surface difference occurs in a continuous portion between the quarter panel rear outer 101 and the outer surface 110b of the rear gate 110, thereby reducing the quality of a completed vehicle. Influencing factors.

However, in the present embodiment, the rear outer quarter 101 and the extension quarter panel end 102 are positioned by the restriction surface 12 of the first restriction plate 11 and the restriction surface 22 of the first restriction plate 21 of the clamp device 10. And the quarter panel rear end 103,
As we continue to assemble Linhorse D pillar 104,
By successively visually checking the displacement of the end face 13 of the first regulating plate 12 and the flange 101a of the quarter panel rear outer 101 due to the assembly, it is possible to visually confirm the change in the assembly accuracy in the assembly jig 1. it can. In addition, by visually confirming the change in the assembling accuracy also in other parts such as side rails, side sills, roofs, floors, and the like, it becomes possible to specify a body member and a part of the body member that require measures to improve the assembling accuracy. In addition, efficient and effective measures can be taken to reduce the number of man-hours required for assembling.

Although the first regulating plate 11 provided with the end face 13 serving as the position confirmation section is provided on the clamp device 10, it may be fixedly provided on the assembly jig 10.

Therefore, according to the present embodiment, the existing regulating plate 11 can be simply used without using equipment such as an optical measuring device.
With the simple structure of forming the position confirmation portion, that is, the end face 13, which can be visually observed, a change in the assembly accuracy during the assembly process can be visually recognized, so that the vehicle body member can be efficiently and effectively corrected. This makes it possible to assemble the vehicle body members with high accuracy without increasing equipment costs.

Furthermore, since the flange formed by bending the body member is used as a reference position of the body member,
It is not necessary to separately attach a reference position or the like to the vehicle body member, and the present invention can be implemented without affecting the vehicle body member.

The present invention is not limited to the above embodiment, but can be variously modified without departing from the spirit of the invention. For example, in the above-described embodiment, for example, a flange formed by bending a press-formed body member is set as the reference position. However, the present invention is not limited to the flange, and other bent portions, edges of the body member, and punches formed in the body member. It is also possible to use a suitable part that can be visually recognized on the vehicle body member, such as the periphery of the provided opening, and the position confirmation part formed on the regulating plate is the first part of the clamp device 10 in the above embodiment. Although the end face 12 formed on the regulating plate 11 is used as a position confirming portion, the position confirming portion is formed by forming a hole functioning as a position confirming portion in an existing regulating plate, and an arrow attached to a side surface of the regulating plate. , An engraved mark or the like. Further, it is also possible to attach a scale or the like to the regulating plate for clarifying the amount of displacement of the vehicle body member.

[0048]

According to the invention of the vehicle body assembling apparatus described above, the regulating plate of the assembly jig is press-formed in advance by a simple structure provided with a position confirming portion for visually confirming the relative position of the vehicle body member to the reference position. Positioning the vehicle body member with the regulating plate, and sequentially assembling the vehicle body members, visually confirming the reference position attached to the vehicle body member and the relative position of the position confirming portion of the regulating plate allows visual confirmation of the regulating plate of the vehicle body member. Can be confirmed, the change in the assembly accuracy within the assembly jig can be visually confirmed, and it is possible to identify the parts of the vehicle body member and the body member that require measures to improve the assembly accuracy, Effective measures can be taken to reduce the number of modification steps after assembling the vehicle body.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an assembly jig showing an outline of an embodiment of an assembling apparatus according to the present invention.

FIG. 2 is a sectional view taken along line II of FIG. 1;

FIG. 3 is a rear perspective view of a vehicle body.

FIG. 4 is a sectional view taken along line II-II of FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Assembly jig 10 Clamp apparatus 11 1st control plate 12 Control surface 13 End surface (position confirmation part) 14 Arrow (instruction means) 21 2nd control plate 22 Control surface 100 Body main body 101 Quarter panel rear outer (body member) 101 Flange (Bent portion, reference position) 102 Extension quarter panel end (body member) 103 Quarter panel rear end (body member) 104 Lin hose D pillar (body member) 110 Rear gate (body member) 110a Edge 110b Outer surface

Claims (5)

[Claims] 1. A vehicle body assembling apparatus for positioning a pre-pressed body member by means of a regulating plate and assembling the body body by assembling the body member, wherein the regulating plate is provided with a reference position attached to the positioned body member. A vehicle body assembling device comprising a position confirmation unit for visually confirming a relative position of the vehicle body. 2. The vehicle body assembling apparatus according to claim 1, wherein the position confirmation unit is an end face of the restriction plate. 3. The vehicle body assembling device according to claim 1, wherein the position confirmation unit is a hole formed in the restriction plate. 4. The vehicle body assembling apparatus according to claim 1, wherein the reference position is a bent portion formed on the vehicle body member. 5. The vehicle according to claim 1, wherein the reference position is an edge of the vehicle body member.
4. The vehicle body assembling device according to 3.