Waste cutting device for tailored blank laser welding

Abstract

The utility model discloses a waste cutting device for tailored blank laser welding, which comprises an upper die holder and a lower die holder, an upper die trimming knife is mounted at the lower end of the upper die holder, a lower die waste cutting knife is mounted at the upper end of the lower die holder, and tailored blank laser welding waste to be cut is placed at the upper end of the lower die waste cutting knife. A height adjusting component is installed at the lower end of the lower die waste cut-off tool and used for adjusting a gap between the upper die trimming tool and the lower die waste cut-off tool and enabling the upper die trimming tool and the lower die waste cut-off tool to be matched to extrude and break laser tailored blank waste. According to the waste cutting device for the tailored blank laser welding, waste materials of tailored blank laser welding to be cut off with different thicknesses can be effectively extruded and broken.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile manufacturing, and in particular relates to a waste cutting device for laser tailor-welded sheet materials. Background Art

[0002] At present, the sheet materials used for the inner panels of the front doors on some automobile bodies are two sheets of different thicknesses. Before stamping, the two sheets of different thicknesses need to be laser welded to form an integral sheet. Laser welding has high requirements on the straightness and smoothness of the sheet edge. The edge of the sheet in the laser welding area is completed by one-knife cutting.

[0003] like Figure 1 The following is the blanking process layout diagram for the thin plate side. Figure 2 for Figure 1 The enlarged schematic diagram of the middle circle A, where Figure 1 The dotted line in the figure represents the original edge line of the thin plate, the solid line parallel to the vertical dotted line on the left side of the thin plate is the cutting line at the laser welding area of ​​the thin plate, and forms a laser welding line 1, the solid line at the lower left part of the thin plate and connected to the laser welding line 1 is the first cutting line 2 at the non-laser welding area of ​​the thin plate, the solid line at the lower right part of the thin plate is the second cutting line 3 at the non-laser welding area of ​​the thin plate, and the solid line at the upper right part of the thin plate is the third cutting line 4 at the non-laser welding area of ​​the thin plate, wherein the first cutting waste 5 of the thin plate is surrounded by the dotted line on the upper left side of the thin plate and the laser welding line 1, and the second cutting waste 6 of the thin plate is surrounded by the first cutting line 2 and the dotted lines at the corresponding position of the thin plate. In addition, the lower end of the first cutting waste 5 is connected to the upper end of the second cutting waste 6 to form a total cutting waste. Since the cutting line at the laser welding area of ​​the thin plate is longer, the length of the first cutting waste 5 is longer, so it is necessary to adjust the total cutting waste at Figure 1 and Figure 2 The first cutting waste 5 and the second cutting waste 6 are cut at the junction of the first cutting waste 5 and the second cutting waste 6, i.e., position B, to form the separated first cutting waste 5 and the second cutting waste 6. In summary, a waste cutting device for laser tailor-welded blanks is urgently needed. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the utility model provides a waste cutting device for laser-welded sheet materials, which can effectively squeeze and cut waste laser-welded sheet materials to be cut with different thicknesses.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A waste cutting device for laser welded sheet materials comprises an upper die base and a lower die base, wherein an upper die trimming knife is installed at the lower end of the upper die base, and a lower die waste cutting knife is installed at the upper end of the lower die base, and waste laser welded sheet materials to be cut are placed at the upper end of the lower die waste cutting knife, and a height adjustment component is installed at the lower end of the lower die waste cutting knife, and the height adjustment component is used to adjust the gap between the upper die trimming knife and the lower die waste cutting knife, so that the upper die trimming knife and the lower die waste cutting knife cooperate to squeeze and cut off the waste laser welded sheet materials.

[0007] Furthermore, the height adjustment component includes a plurality of adjustment pads with different thicknesses, and the gap between the upper die trimming knife and the lower die waste cutting knife is adjusted by installing the adjustment pads with different thicknesses at the lower end of the lower die waste cutting knife.

[0008] Furthermore, the height adjustment component includes a plurality of adjustment pads of the same thickness, and different numbers of the adjustment pads are installed at the lower end of the lower die waste cutting knife to adjust the gap between the upper die trimming knife and the lower die waste cutting knife.

[0009] Furthermore, a waste slide plate is installed on the left side of the lower die base and is inclined toward the lower left. The horizontal height of the upper right end of the waste slide plate is lower than the horizontal height of the top end of the lower die base. The waste slide plate is used to make the squeezed waste on the left side of the lower die waste cutting knife slide to the lower left side of the waste slide plate.

[0010] Furthermore, a horizontal base is fixed at the lower left portion of the lower die base, the waste slide plate is located above the base, and the waste slide plate is fixedly connected to the base via a support frame.

[0011] Furthermore, the base is integrally connected to the lower mold base.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The waste cutting device of laser welding sheet of the utility model comprises an upper die base and a lower die base, an upper die trimming knife is installed at the lower end of the upper die base, a lower die waste cutting knife is installed at the upper end of the lower die base, the waste of laser welding sheet to be cut is placed at the upper end of the lower die waste cutting knife, and a height adjustment component is installed at the lower end of the lower die waste cutting knife, and the height adjustment component is used to adjust the gap between the upper die trimming knife and the lower die waste cutting knife; in this way, for the waste of laser welding sheet to be cut of different thicknesses, the gap between the upper die trimming knife and the lower die waste cutting knife is adjusted by the height adjustment component, and the upper die trimming knife and the lower die waste cutting knife cooperate to squeeze and cut the waste of laser welding sheet, so the waste cutting device of laser welding sheet of the utility model can effectively squeeze and cut the waste of laser welding sheet to be cut of different thicknesses.

[0014] The utility model provides a height adjustment component comprising a plurality of adjustment pads of different thicknesses, and the gap between the upper die trimming knife and the lower die waste cutting knife is adjusted by installing adjustment pads of different thicknesses at the lower end of the lower die waste cutting knife; thus, for laser-welded sheet waste of different thicknesses to be cut, the gap between the upper die trimming knife and the lower die waste cutting knife is adjusted by installing adjustment pads of different thicknesses at the lower end of the lower die waste cutting knife, and the upper die trimming knife and the lower die waste cutting knife cooperate to effectively squeeze and cut off the laser-welded sheet waste.

[0015] The utility model provides a height adjustment component comprising a plurality of adjustment pads of the same thickness, and different numbers of adjustment pads are installed at the lower end of the lower die waste cutting knife to adjust the gap between the upper die trimming knife and the lower die waste cutting knife; thus, for laser welded sheet waste of different thicknesses to be cut, different numbers of adjustment pads of the same thickness are installed at the lower end of the lower die waste cutting knife to adjust the gap between the upper die trimming knife and the lower die waste cutting knife, and the upper die trimming knife and the lower die waste cutting knife cooperate to effectively squeeze and cut off the laser welded sheet waste.

[0016] The utility model has a waste slide plate which is arranged inclined toward the lower left side installed on the left side of the lower die base, and the horizontal height of the right upper end of the waste slide plate is lower than the horizontal height of the top end of the lower die base, and the waste slide plate is used to make the squeezed waste on the left side of the waste cutting knife of the lower die slide to the lower left side of the waste slide plate; in this way, the squeezed waste on the left side of the waste cutting knife of the lower die can be made to slide to the lower left side of the waste slide plate through the waste slide plate, preventing the squeezed waste on the left side of the waste cutting knife of the lower die from directly falling from the upper end of the waste cutting knife of the lower die, so the waste slide plate plays a buffering role for the squeezed waste on the left side of the waste cutting knife of the lower die. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the blanking process layout diagram of the thin plate side in the background technology;

[0018] Figure 2 for Figure 1 The enlarged schematic diagram of the middle circle A;

[0019] Figure 3 A schematic structural diagram of the waste cutting device for laser tailor-welded sheet materials in the utility model when adjusting the gap between the upper die trimming knife and the lower die waste cutting knife by installing an adjusting pad of different thicknesses at the lower end of the lower die waste cutting knife;

[0020] Figure 4 A schematic structural diagram of the waste cutting device for laser tailor-welded sheet materials in the utility model when different numbers of adjusting pads with the same thickness are installed at the lower end of the waste cutting knife of the lower die to adjust the gap between the trimming knife of the upper die and the waste cutting knife of the lower die;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of the center circle C.

[0022] Explanation of the reference numerals in the figure: 1. laser welding line, 2. first cutting line, 3. second cutting line, 4. third cutting line, 5. first cutting waste, 6. second cutting waste, 7. upper die base, 8. lower die base, 9. upper die trimming knife, 10. lower die waste cutting knife, 11. waste slide plate, 12. base, 13. support frame, 14. adjustment pad. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0027] like Figure 3-5As shown, a waste cutting device for laser welded sheet materials comprises an upper die base 7 and a lower die base 8, an upper die trimming knife 9 is installed at the lower end of the upper die base 7, a lower die waste cutting knife 10 is installed at the upper end of the lower die base 8, waste laser welded sheet materials to be cut are placed at the upper end of the lower die waste cutting knife 10, and a height adjusting component is installed at the lower end of the lower die waste cutting knife 10, the height adjusting component is used to adjust the gap between the upper die trimming knife 9 and the lower die waste cutting knife 10, and make the upper die trimming knife 9 and the lower die waste cutting knife 10 cooperate to squeeze and cut off the waste laser welded sheet materials.

[0028] Since the sheet materials used for the front door inner panels on some automobile bodies are two sheets of different thicknesses, the two sheets of different thicknesses need to be laser welded together to form an integral sheet before stamping. Laser welding has high requirements on the straightness and smoothness of the sheet edge, so the sheet needs to be cut, and laser welded sheet waste will be formed after cutting. The thickness of the laser welded sheet waste formed for sheets of different thicknesses is different, and the laser welded sheet waste of different thicknesses needs to be cut; in this way, for the laser welded sheet waste of different thicknesses to be cut, the gap between the upper mold trimming knife 9 and the lower mold waste cutting knife 10 is adjusted by the height adjustment component, and the upper mold trimming knife 9 and the lower mold waste cutting knife 10 are made to cooperate to squeeze and cut the laser welded sheet waste. Therefore, the waste cutting device of the laser welded sheet can effectively squeeze and cut the laser welded sheet waste of different thicknesses to be cut.

[0029] In one embodiment, the height adjustment component includes a plurality of adjustment pads 14 of different thicknesses, and the lower end of the lower die waste cutting knife 10 is provided with adjustment pads 14 of different thicknesses. Figure 3 , adjust the gap between the upper die trimming knife 9 and the lower die waste cutting knife 10. In this way, for the laser welding sheet waste to be cut with different thicknesses, by installing the adjusting pad 14 of different thicknesses at the lower end of the lower die waste cutting knife 10, the gap between the upper die trimming knife 9 and the lower die waste cutting knife 10 can be adjusted, and the upper die trimming knife 9 and the lower die waste cutting knife 10 can cooperate to effectively squeeze and cut the laser welding sheet waste.

[0030] In one embodiment, the height adjustment component includes a plurality of adjustment pads 14 of the same thickness, and different numbers of adjustment pads 14 are installed at the lower end of the lower die waste cutting knife 10. Figure 4-5 , adjust the gap between the upper die trimming knife 9 and the lower die waste cutting knife 10. In this way, for the laser welding sheet waste to be cut with different thicknesses, by installing different numbers of adjustment pads 14 with the same thickness at the lower end of the lower die waste cutting knife 10, the gap between the upper die trimming knife 9 and the lower die waste cutting knife 10 can be adjusted, and the upper die trimming knife 9 and the lower die waste cutting knife 10 can cooperate to effectively squeeze and cut the laser welding sheet waste.

[0031] In one embodiment, Figure 3-4 A waste slide plate 11 is installed on the left side of the lower die base 8 and is arranged tilted toward the lower left. The horizontal height of the upper right end of the waste slide plate 11 is lower than the horizontal height of the top of the lower die base 8. The waste slide plate 11 is used to make the squeezed waste on the left side of the lower die waste cutting knife 10 slide to the lower left side of the waste slide plate 11.

[0032] In this way, the waste slide plate 11 can make the squeezed waste on the left side of the lower mold waste cutting knife 10 slide to the lower left side of the waste slide plate 11, preventing the squeezed waste on the left side of the lower mold waste cutting knife 10 from falling directly from the upper end of the lower mold waste cutting knife 10. Therefore, the waste slide plate 11 plays a buffering role for the squeezed waste on the left side of the lower mold waste cutting knife 10.

[0033] Preferably, a horizontal base 12 is fixed at the lower left side of the lower die base 8, the waste slide 11 is located above the base 12, and the waste slide 11 is fixedly connected to the base 12 through a support frame 13. Figure 3-4 .

[0034] Preferably, the base 12 is integrally connected to the lower mold base 8 .

[0035] In summary, for the laser welded sheet waste of different thicknesses to be cut, the gap between the upper mold trimming knife 9 and the lower mold waste cutting knife 10 is adjusted by the height adjustment component, and the upper mold trimming knife 9 and the lower mold waste cutting knife 10 cooperate to squeeze and cut the laser welded sheet waste. Therefore, the waste cutting device for laser welded sheets can effectively squeeze and cut the laser welded sheet waste of different thicknesses to be cut.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A waste cutting device for laser welded sheet materials, characterized in that: The invention comprises an upper die base (7) and a lower die base (8), wherein an upper die trimming knife (9) is installed at the lower end of the upper die base (7), and a lower die waste cutting knife (10) is installed at the upper end of the lower die base (8), and laser welded sheet waste to be cut is placed at the upper end of the lower die waste cutting knife (10), and a height adjustment component is installed at the lower end of the lower die waste cutting knife (10), and the height adjustment component is used to adjust the gap between the upper die trimming knife (9) and the lower die waste cutting knife (10), so that the upper die trimming knife (9) and the lower die waste cutting knife (10) cooperate to squeeze and cut off the laser welded sheet waste.

2. The waste cutting device for laser-welded sheet materials according to claim 1, characterized in that: The height adjustment component comprises a plurality of adjustment pads (14) of different thicknesses, and the gap between the upper die trimming knife (9) and the lower die waste cutting knife (10) is adjusted by installing the adjustment pads (14) of different thicknesses at the lower end of the lower die waste cutting knife (10).

3. The waste cutting device for laser-welded sheet materials according to claim 1, characterized in that: The height adjustment component comprises a plurality of adjustment pads (14) of the same thickness, and different numbers of the adjustment pads (14) are installed at the lower end of the lower die waste cutting knife (10) to adjust the gap between the upper die trimming knife (9) and the lower die waste cutting knife (10).

4. The waste cutting device for laser welded blanks according to claim 1, characterized in that: A waste slide plate (11) is installed on the left side of the lower die base (8) and is arranged to be inclined to the lower left. The horizontal height of the upper right end of the waste slide plate (11) is lower than the horizontal height of the top end of the lower die base (8). The waste slide plate (11) is used to make the squeezed waste on the left side of the lower die waste cutting knife (10) slide to the lower left side of the waste slide plate (11).

5. The waste cutting device for laser welded blanks according to claim 4 is characterized in that: A horizontal base (12) is fixed at the lower left side of the lower die base (8), the waste slide plate (11) is located above the base (12), and the waste slide plate (11) is fixedly connected to the base (12) via a support frame (13).

6. The waste cutting device for laser welded blanks according to claim 5, characterized in that: The base (12) is integrally connected to the lower die base (8).

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