JPS6110866Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a forming-processing composite welding device that welds a second or third panel to a first panel to produce two types of parts having different cross-sectional shapes in the plate thickness direction.

For example, in the center pillar 1 of a car, there is a
As shown in the figure, the first panel 3 is welded to the lower inner panel 2, and the second panel 4 is further welded to the tip of the first panel 3, or the first panel 3 is slightly bent. 3rd panel 5
It is manufactured by welding, and is used depending on the car model.

Conventionally, the center pillar 1 has been manufactured by installing a panel fixing jig, a welding device, and a press device for folding the first panel depending on the applicable vehicle model, and the equipment cost is high. ,
It also has the disadvantage of requiring a large installation space.

The present invention has been made to solve the above-mentioned conventional problems, and its objects are as follows:
The panel fixing jigs of the third panel are movable to predetermined positions relative to each other, and one device serves as both the first panel fixing jig and the welding device, and the press device is a second
To provide a forming and processing composite welding device which is operated only when welding a panel and can be used in place of two conventional dedicated jig lines as one line, and which is inexpensive and requires a significantly reduced installation space.

Next, the present invention will be explained with reference to the drawings which are one embodiment.

FIG. 2 is a plan view when the forming/processing complex welding device according to the present invention is applied to the production of a center pillar, and FIG. 3 is a side view, showing the lower inner panel 2,
The first panels 3 are each fixed to a fixing jig 11 attached to a base 10. This fixture 11 includes a clamp device 12 and a positioning device 1.
Basically, as shown in FIG. 4, the clamping device 12 includes a cylinder 15 on the side of a main body 13 having a receiving part 14 on the upper surface, and a piston rod 16 of this cylinder 15 is attached to the main body. 13
The clamp arm 17 is connected to a clamp arm 17 rotatably attached to the clamp arm 17. In addition, the positioning device 18 also
Basically, as shown in FIG. 3, a push-up member 19 having a positioning pin 20 on its upper surface is attached to be movable up and down by a cylinder 21.

Then, the lower inner panel 2 or the first panel 3 having positioning holes at predetermined positions is placed on the receiving part 14 of the clamp device 12, and
The cylinder 21 is driven to fit the positioning pin 20 into the positioning hole, and then the lower inner panel 2 or the first panel 3 is crimped and fixed in a predetermined position by the cylinder 15 and the clamp arm 17.

Note that 22 is a receiving member having only a receiving portion on its upper surface. In addition, the inner fixing jig 11A is connected to the clamp devices 12A to 12D and the positioning device 18A.
The clamp devices 12E to 12G and the positioning device 18B constitute a first panel fixing jig 11B, and the first panel 3 is cantilever-supported by the first panel fixing jig 11B.

Reference numerals 11C and 11D denote a second panel fixing jig and a third panel fixing jig disposed on the free end side of the first panel 3, which is the side to be welded, and a rotary table rotated by a cylinder 23 on the base 10. It is mounted on 24. The second panel fixing jig 11C includes a positioning device 18C having two positioning pins and clamp devices 12H and 12I. On the other hand, the third panel fixing jig 11D also includes a positioning device 18D and a clamping device 12 having the same configuration.
J, 12K, and this third panel fixing jig 11D is made by bending the third panel 5 with a press device 38 as described below and welding it thereto, so the clamp devices 12J, 12K are correspondingly low. It is becoming.

In addition, the inner fixing jig 11A, the first panel fixing jig 11B, and the second and third panel fixing jig 1
Welding devices 25, 49 and a press device 38 are arranged on one side of the line consisting of 1C and 11D.

The welding device 25 is for spot welding the welded portion a of the lower inner panel 2 and the first panel 3, and the welding machine main body 26 has electrode tips 27 and 28, and is rotatably pivoted by a shaft 29. The lower inner panel 2 and the first panel 3 are welded together by the operation of the cylinder 32. Further, this welding machine main body 26 is movable on a rail 34 of a table 33 by a cylinder 35 provided on the table 33, and the table is movable on a rail 37 provided on the base 10 by a cylinder 36. There is.

The press device 38 is used to bend the first panel 3 when welding the third panel 5 to the first panel 3. As shown in FIG. It has an upper mold 43 at the tip thereof, and presses the first panel 3 by aligning it with a lower mold 44 using a cylinder 41, and its pressing surface is a curved surface as shown in FIG.

Note that 45 is attached to the upper mold 43 and the arm 4
47 is a guide rod that slides in a guide hole 46 provided in the lower die 44 by the operation of the cylinder 41.
This is a guide pin that is attached to the upper die 43 and inserted into the guide hole 48 of the upper die 43.

The other welding device 49 spot-welds the welded parts a of the second and third panels 4 and 5 to the free end side of the first panel 3, as shown in FIGS. 2 and 3. The main body 50 is placed on a table 51, and electrode chips 55, 5 are mounted on the tip of an arm 52 by an equalizer (not shown) in a cylinder 53 and guided by a guide pin 54 from above and below to approach and separate.
The table 51 is placed on a rail 59 of the base 10 and is movable by a cylinder 60.

Note that, as described above, the rotary table 24 is rotated by the cylinder 23 around the support shaft 61 to position either the second panel fixing jig 11C or the third panel fixing jig 11D at the welding position. ing.

The forming and hybrid welding apparatus according to the present invention is constructed as described above. The method of using the apparatus will now be described.

First, when welding the lower inner panel 2, the first panel 3, and the third panel 5 to the first panel 3 to form a center pillar, actuate the cylinder 23 as shown in FIGS. 2 and 3. , position the third panel fixing jig 11D at the welding position. Note that the clamp device 12 of each fixing jig 11 is in the released state, and the welding devices 25, 49 are also in the electrode tip 27, 28, 5.
5 and 56 are retracted to the rear of the line in a separated state, and the press device 38 is in an open state.

In this state, the lower inner panel 2, the first panel 3, and the third panel 5 are each held by the clamping device 12.
By fitting the positioning hole b to the positioning pin 20 on the receiving part 14 of 1
4 to secure it. At the same time, the cylinder 41 of the press device 38 is operated to mold the tip of the first panel 3 into a predetermined shape, and at the same time, position the tip. That is, the lower inner panel 2, the first panel 3, and the third panel 5 are in a state where their welded portions a are overlapped.

Here, each of the welding devices 26, 49 is moved by the cylinders 35, 36, 60, welds the welded portion a of each panel, and is sequentially retreated to return to its original state, and then the press device 38, Then, each clamp device 12 returns to its original state, and the joined center pillar 1 is carried out.

Next, in order to weld the second panel 4 to the first panel 3 to form the center pillar 1, the cylinder 23 is
, the second panel fixing jig 11C is replaced with the third panel fixing jig 11D and positioned at the welding position, and the same operation as described above is performed. However, in this case, since there is no need to curve the first panel 3, the press device 38 is not operated.

In the embodiment described above, the switching between the second fixing jig 11C and the third fixing jig 11D is performed by rotating the rotary table 24, but the switching may be performed by linear movement. Of course, this method can also be applied to applications other than the production of automobile center pillars.

As is clear from the above explanation, when welding the second panel or the third panel to the first panel to produce two types of parts with different cross-sectional shapes in the plate thickness direction,
According to the present invention, since the second and third panel fixing jigs are switched and substantially one device has the same functions as two devices, many devices can be omitted and the cost is low, and the installation space is also increased. This has the effect of reducing the width.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of two types of center pillars, Figure 2
The figure is a plan view of a forming/processing combined welding device according to the present invention, FIG. 3 is a front view of FIG. 2, FIG. 4 is a front view of an example of a clamping device, and FIG. 5 is an example of a welding device. FIG. 6 is a partially sectional front view of the press device. 1... Center pillar, 3... First panel, 4...
...Second panel, 5...Third panel, 11B...First panel fixing jig, 11C...Second panel fixing jig, 11D...Third panel fixing jig, 38...Press device, 49... ...Welding device, 24...Rotary table, 23...Cylinder, 61...Spindle.

Claims (1)

[Scope of utility model registration request] A device for welding a second panel or a third panel to a first panel to produce two types of parts with different cross-sectional shapes in the plate thickness direction is installed in a cantilever shape with the welded part side of the first panel as the free end. a retractable second panel fixing jig that fixes the second panel by overlapping the welded portion of the second panel with the welded portion of the first panel; A press device that includes an upper mold and a lower mold disposed at upper and lower positions on the free end side of the panel, and pressurizes and curves the first panel in the thickness direction with both molds using a cylinder, and fixes the second panel. a third panel fixing jig which is movable in place of the jig and fixes the third panel by overlapping the welded part of the third panel with the welded part of the first panel curved by the press device; Said first
A forming-processing composite welding device comprising a panel and welding devices provided above and below the welded portion of the second or third panel.