JP2515052Y2 - Inspection jig for plate alignment failure analysis of sheet metal parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an inspection jig for plate alignment failure analysis of sheet metal parts such as automobiles.

<Prior Art> For sheet metal parts of automobiles, for example, as shown in FIG. 5 (A), the plate fitting of the arc brazing 3 between the roof panel 1 and the quarter panel 2 is carried out in accordance with FIG. , C, that is, the edge including the drip 4 as shown in the cross sections of (a), (b) and (c) of FIG. Therefore, it is necessary to inspect whether or not the accuracy of the plate-matched portion is as shown in the drawing.

Conventionally, as shown in FIG. 6, there is a jig only for partially inspecting a plate mating surface to be welded, and it is simply a sheet metal part W.
The edge, which is the welding range 6, was placed on a plurality of measurement pieces 5, and the shape of the edge was observed by the measurement pieces 5.

<Problems to be Solved by the Invention> When this plate mating surface to be welded is partially inspected, sufficient inspection accuracy cannot be obtained, and as a result, the part E of FIG. 5 (B) is shown in FIG. ), The portion of the drip 4 becomes high, and a gap is formed between the roof panel 1 and the quarter panel 2, resulting in a defective profile. Also, FIG. 5 (B)
A large gap occurs between the roof panel 1 and the quarter panel at the portion B of FIG. 8B. further,
As shown in FIG. 8 (f), the portion shown in FIG. 5 (b) has a higher portion of the quarter panel 2, which causes a plate alignment problem in which there is a gap between the roof panel 1 and the quarter panel 2. The physical quantity of this plate misalignment has a dimensional accuracy of 0.1 mm.

Therefore, if a piece of the inspection jig is set on the front surface of the plate mating surface to be welded, there is a problem that the jig piece strongly interferes with the accuracy of the sheet metal part W to be inspected, and accurate data cannot be obtained. For this reason, there is no data for the necessary parts, so a great deal of man-hours are required for failure analysis after the parts are attached to each other.

<Means for Solving the Problems> The present invention provides an inspection jig for analyzing plate alignment defects of sheet metal parts, which solves the above-mentioned problems of the prior art. According to the accuracy data of the fixed measurement piece, a plurality of movable receiving pieces arranged on the lower surface of the measurement piece and placed in contact with the entire surface of the edge portion of the sheet metal part, and the accuracy data of the sheet metal part and its peripheral members, A receiving piece attitude control device for moving a movable receiving piece in X, Y, and Z directions with respect to a measuring piece to reproduce a defective state of a plate fitting portion of the sheet metal member and its peripheral members, and the receiving piece to which the accuracy data is input. And an arithmetic unit for controlling the attitude control unit.

<Operation> With the above configuration, the posture of the movable receiving piece is appropriately controlled with respect to the fixed measuring piece by the receiving piece posture control device by the arithmetic device, the defective phenomenon is reproduced, and detailed data is acquired. .

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings. First
In the figure, 10a, 10b and 10c are movable receiving pieces for mounting the entire surface along the edge of the sheet metal part W.

Reference numeral 13 is a receiving piece attitude control device. The receiving piece attitude control device 13 supports the movable receiving pieces 10a to 10c, and X, Y,
Move in the Z direction and measure the posture of the movable receiving pieces 10a-10c.
It controls a to 15c.

The measuring pieces 15a to 15c are members fixed on a surface plate, and are fixed so as to face the edge portions of the sheet metal member W with a certain gap as shown in FIGS. 2 to 4. It is something.

Reference numeral 14 is an arithmetic unit (personal computer), to which precision data of the sheet metal member W and its peripheral members is input, and the receiving piece attitude control unit 13 is controlled by this data. 14a is the arithmetic unit 1
Figure 4 shows the screen.

In the above structure, the edge portion of the sheet metal part W is placed on the movable receiving pieces 10a to 10c, the accuracy data of the sheet metal part W and its peripheral members are input to the arithmetic unit 14, and the receiving piece attitude control is performed by the data. The device 13 is controlled to move the movable receiving pieces 10a to 10c in the X, Y and Z directions with respect to the fixed measuring pieces 15a to 15c.

That is, the data of the plate matching portion (the quarter panel 2 and the drip 4) is input to the arithmetic unit 14, and the movable frame members 10a to 10c are moved in the X, Y, and Z directions by the receiving frame attitude control device 13, and the roof is moved. Reproduce the trouble phenomenon with panel 1,
The allowable accuracy of the defect is measured and determined by the fixed measuring pieces 15a to 15c.

Further, by moving the movable receiving pieces 10a to 10c, the defective state of the plate matching portion is simulated.

As a result, it is possible to determine the condition similar to that of an actual vehicle, analyze the cause of the trouble phenomenon, and determine the appropriate correction amount of the sheet metal part.

Therefore, in the present invention, the movable receiving pieces 10a to 10c are placed on the entire surface of the edge portion of the sheet metal part W for measurement. This is because when the sheet metal part W is placed on the movable receiving pieces 10a to 10c, the sheet metal part W contacts one end of the movable receiving piece 10a due to the accuracy of the sheet metal part W, and the other of the movable receiving pieces 10a, for example. When the sheet metal part W is placed in a state where the sheet metal part W floats at the end of the, the defect can be measured along the plate mating surface.

That is, in order to reproduce the defect phenomenon between the plate matching parts (the quarter panel 2 and the drip 4) and the roof panel 1 and determine the allowable accuracy of the defect by the fixed measuring pieces 15a to 15c, the movable receiving pieces 10a to 10c are made of sheet metal. It is necessary to mount the entire surface of the edge portion of the component W, and by mounting the entire surface of the edge portion of the sheet metal component W, it is possible to measure the plate alignment defect without being influenced by the accuracy of the sheet metal component W. You can

<Effect of the Invention> As described above, according to the present invention, the accuracy of the arc brazing plate mating parts such as the roof panel and the quarter panel, which are sheet metal parts of automobiles, is improved, and the man-hours for failure analysis after assembling the parts are improved. As a result, there is an advantage that the quality of the welded parts is improved, and particularly the plate brazing part of arc brazing has a very high quality.

[Brief description of drawings]

FIG. 1 is a perspective view of the device of the present invention, FIG. 2 is an enlarged sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. FIG. 5 is a sectional view taken along the line, FIG. 5 is a view showing an example of a sheet metal part of an automobile to be inspected by the device of the present invention, FIG. 6 is a perspective view of a conventional inspection jig, and FIG. 7 is a diagram of FIG. ，
B and C cross-sectional views, and FIG. 8 is a cross section of FIG.
It is each sectional drawing of the malfunction phenomenon of a b and a site | part. 10a to 10c …… Movable receiving piece, 13 …… Receiving piece attitude control device,
14: arithmetic unit, 15: fixed measuring piece.

Claims (1)

(57) [Scope of utility model registration request] 1. A measuring piece fixed on a surface plate, a plurality of movable receiving pieces arranged on the lower surface of the measuring piece and placed so that the entire edge portions of the sheet metal parts are in contact with each other, the sheet metal part, and A receiving piece attitude control device for moving the movable receiving piece in the X, Y, and Z directions with respect to the measuring piece based on the accuracy data of the peripheral member to reproduce a defective state of the plate-matching portion of the sheet metal member and its peripheral members; An inspection jig for plate alignment failure analysis of a sheet metal part, comprising an arithmetic unit for receiving the accuracy data and controlling the receiving piece attitude control unit.