JP2530956Y2 - Rolling equipment - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to a rolling device for rolling a bead portion formed by welding of TIG or the like, and particularly enables optimal rolling according to a joint shape. It relates to a rolling device.

"Prior Art" FIG. 4 is a side view showing a conventional rolling apparatus. In this figure, reference numeral 1 denotes a rolling roll, which is attached to the traveling section 2 so as to be swingable in a vertical direction. Reference numeral 3 denotes a rolling roll lowering cylinder, which drives the rolling roll 1 and
Is applied to the joint portion of the work 5 placed on the work 5. The traveling unit 2 is moved by the traveling motor 6 in the length direction of the work 5 (the left-right direction in the drawing).
The bead portion 7 (FIG. 5; sectional view taken along the line II of FIG. 4) formed at the joint portion is rolled to the same thickness as the work 5. Here, FIG. 6 is an enlarged view of the rolling roll 1 and the bead portion 7, and the bead portion 7 formed in the joint portion is flattened by the rolling roll 1.

"Problem to be Solved by the Invention" Since the shape of the bead portion 7 formed at the time of welding differs depending on the shape of the joint for welding, the bead portion 7 has a conventional constant shape and a vertical axis center of the bead portion 7. In the case of the rolling roll 1 arranged at a position where the center substantially coincides with the center, there is a problem in that rolling is performed to an unnecessary portion, and that portion causes work hardening and becomes brittle. Here, FIG.
(C) shows the difference in the shape of the bead portion 7 due to the difference in the joint shape. FIG. 7A shows the case where the thickness of both plate members is the same, and the bead portion 7 is formed over both members. In each of the cases (b) and (c), the thickness of one plate member is larger than the thickness of the other plate member, and the bead portion 7 is mainly formed on the thick plate side. I have.

The present invention has been made in view of such circumstances, and an object of the invention is to provide a rolling device that can perform optimal rolling on joints having various shapes.

"Means for solving the problem" This invention is a rolling device that rolls a bead portion formed when welding a joint portion, a plurality of rolls prepared according to both thicknesses of the joint portion. Rolling rolls, each rolling roll having a selecting means for selecting the best one according to the thickness of both of the joint portion, and the selecting means, one plate member of the joint portion is If the plate thickness is thicker than the other plate member, select one of the rolling rolls to roll one plate member side, and if one plate member and the other plate member have the same thickness, And rolling the both plate members.

[Operation] According to the above configuration, a rolling roll capable of performing optimal rolling in accordance with the shape of the joint portion of welding is selected. In this case, for example, when one plate member of the joint portion is thicker than the other plate member, a rolling roll for rolling the one plate member side is selected, and one plate member and the other plate member are selected. When the thicknesses of the members are the same, a rolling roll for rolling both plate members is selected.

Therefore, optimal rolling can be performed on joint portions having various shapes.

"Example" Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a main part of a rolling apparatus according to an embodiment of the present invention. In this figure, parts common to FIG. 4 described above are omitted.

In this figure, reference numeral 10 denotes a rolling roll assembly, and two fixed members 10 formed in a disk shape having a thickness.
a, 10b, and rolling rolls 11a to 11c rotatably mounted therebetween. Each rolling roll
11a to 11c are equally spaced from each other and
As shown in FIG. 3 (a), 11a is mounted so that its axial center coincides with the center between the fixing members 10a, 10b in the vertical direction, and the other rolling rolls 11b, 11c are mounted as shown in FIG. As shown in (c), they are mounted eccentrically from the center between the fixing members 10a and 10b in opposite directions. Also especially rolling mill
11a has a roll width wider than the other rolling rolls 11b and 11c. Here, the roll widths and the mounting positions of the rolling rolls 11a to 11c are different from each other for the following reasons. That is, when the thickness of both plate members of the work 5 is the same, the bead portion 7 formed in the joint portion is formed over both plate members. This is because the rolling roll 11a having a large width and a vertical axis substantially coinciding with the center of the bead portion 7 is suitable. Also, when the plate thicknesses of the two plate members of the work 5 are different from each other, the bead portion is shifted to the thick plate side, so that the rolling rolls 11b and 11c located on the thick plate side are suitable.

In FIG. 1, reference numeral 12 denotes an intermittent three-point index actuator for intermittently fixing the rolling roll assembly 10 at three positions, and among the rolling rolls 11a to 11c based on a switching signal supplied from a switching unit 13. One is selected and arranged at the position indicated by reference numeral A in the drawing. The selection of the rolling rolls 11a to 11c is performed by setting the selection switch 14.

In the rolling device having such a configuration, when a work 5a (not shown) having the same plate thickness of both plate members is placed on the rolling stand 4, the operator operates the selection switch 14 to operate the rolling roll 11a.
Select Thereby, the rolling roll 11a is arranged at the position A. Next, the operator turns on a rolling start switch (not shown) to the ON side. As a result, the rod of the rolling roll lowering cylinder 3 is extended, and the rolling roll 11a comes into contact with the bead portion 7 formed at the joint portion of the work 5 and presses it. Next, the traveling motor 6 operates, and the traveling unit 2 starts traveling. Thereby, the bead portion 6 is rolled.

When a work 5 (not shown) of both plate members having different plate thicknesses as shown in FIG. 3 (b) is placed on the rolling stand 4, the operator operates the selection switch 14 to select the rolling roll 11b. I do.
Thereby, the rolling roll 11b is arranged at the position A. When the rolling start switch is turned on, the traveling unit 2 starts traveling as described above.

In the above embodiment, three types of rolling rolls 11 were used.
Although only a to 11c were provided, it is not limited to this number.

"Effects of the invention" As described above, the rolling device according to the invention selects rolling rolls that can perform optimal rolling according to the thickness of both plate members of the joint portion. Optimal rolling can be performed on a joint having a shape.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of a rolling mill according to an embodiment of the present invention, FIG. 2 is a front view of a main part of the embodiment,
FIG. 3 is a front view showing each rolling roll constituting the embodiment, FIG. 4 is a side view showing a conventional rolling device, FIG. 5 is a sectional view taken along line II of FIG. 4, and FIG. A partially enlarged view of FIG. 5,
FIG. 7 is a diagram for explaining the shape of the bead portion with respect to the shape of the joint portion. 3 Roll roll lowering cylinder, 5 Work (plate member to be rolled), 7 Bead part, 10 Roll mill assembly, 11a to 11c Roll roll, 12 intermittent three-point index actuator, 13 ... Switching circuit, 14 ... Selection switch (10,12-14 are selection means).

Claims (1)

(57) [Scope of request for utility model registration] In a rolling apparatus for rolling a bead formed when welding of a joint portion, a plurality of rolling rolls prepared according to both plate thicknesses of the joint portion, and each rolling roll are provided. Selecting means for selecting an optimum one according to both plate thicknesses of the joint portion, and wherein the selecting means is such that one plate member of the joint portion is thicker than the other plate member. From among the respective rolling rolls, a roll that rolls the one plate member is selected, and when the thickness of the one plate member and the other plate member is the same, a roll that rolls both plate members is selected. A rolling device characterized by selecting.