Thin-wall box type truss structure vehicle body deck profiling die

Abstract

The utility model discloses a thin-wall box type truss structure vehicle body deck profiling die which comprises an upper die, an upper die base, a rubber ring, a blank holder, a lower die, a taper pin, a lifting pin, a discharging screw and a screw, and the upper die, the upper die base, the rubber ring and the blank holder are connected through the discharging screw, the screw and the taper pin. The rubber ring has elastic shrinkage and is combined with the blank holder to prevent the thin plate from wrinkling; the lower die and the upper die base are correspondingly arranged and matched in shape. The upper die and the lower die are provided with pressing plate steps and are stably connected with a workbench of an oil press through T-shaped bolts; the upper die and the lower die are both provided with air vents. An integrally-formed X-shaped structure can be machined on the thin-wall box type truss structure vehicle body deck, wrinkling deformation of a product is prevented, the rigidity of the thin-wall deck is improved, and therefore welding deformation of the thin-wall box type truss structure vehicle body is relieved.

Description

Technical Field

[0001] This utility model relates to the field of molding technology, specifically to a molding die for a thin-walled box-type truss structure vehicle body deck. Background Technology

[0002] When manufacturing thin-walled box-truss structure vehicle bodies, the thinness of the plates and the large amount of welding required can easily cause welding deformation. Therefore, the thin plates are pressed into an "X" shape. The application of the "X" structure to thin-walled vehicle bodies can increase the rigidity of the thin plates and effectively control deformation during welding.

[0003] In related technologies, since the recess of the "X" structure has a certain depth, it is often machined. This method will cause the thin plate to generate large stress. After the stress is released, the thin plate will deform. In addition, it will waste materials, consume time, and cause great wear and tear on equipment.

[0004] Therefore, there is an urgent need for a thin-walled deck forming mold that is simple, reliable, and prevents wrinkling and deformation during the forming process. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a thin-walled box truss structure vehicle body deck forming mold, which can prevent deck products from wrinkling and deforming, increase the rigidity of thin-walled decks, and thus reduce welding deformation of thin-walled box truss structure vehicle bodies.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A thin-walled box-type truss structure vehicle body deck forming mold includes an upper mold, an upper mold base, a rubber ring, a pressure ring, a lower mold, a tapered pin, a lifting pin, a stripper screw, and a screw. The upper mold, upper mold base, rubber ring, and pressure ring are connected by the stripper screw, screw, and tapered pin.

[0008] Furthermore, the lower surface of the upper mold and the upper mold base is shaped to protrude outwards; the upper surface of the lower mold is shaped to be concave inwards, and the upper mold base and the lower mold are correspondingly set to match each other in shape.

[0009] Furthermore, the upper surface of the lower mold can directly fit against the thin-walled deck. When the lower worktable of the hydraulic press moves upward, the upper mold seat and the lower mold close. As the rubber ring is compressed, the thin-walled deck forms an "X" structure.

[0010] Furthermore, the rubber ring has elastic shrinkage, which, together with the pressure ring, prevents the thin sheet from wrinkling.

[0011] Furthermore, the lifting pin needs to be firmly welded to the upper mold base to facilitate production and lifting.

[0012] Furthermore, both the upper and lower molds are designed with stepped shapes and are stably connected to the hydraulic press worktable using T-bolts.

[0013] Furthermore, both the upper and lower molds are designed with vents.

[0014] The method of using the above mold includes the following steps:

[0015] (1) The upper die of the forming mold is connected to the upper worktable of the hydraulic press, and the lower die is connected to the lower worktable of the hydraulic press by pressure plates;

[0016] (2) Separate the upper and lower worktables of the hydraulic press and place the thin-walled deck to be pressed flat on the upper surface of the lower mold;

[0017] (3) Start the hydraulic press and move the lower worktable of the hydraulic press upward until the lower mold and the upper mold seat are closed. Hold the pressure for 60 seconds (because the upper mold seat is equipped with an elastic rubber ring, the lower mold has upward movement space during the pressure holding, which can make the forming effect better). Use the extrusion of the upper mold seat and the lower mold to complete the thin-walled deck forming process.

[0018] (4) Adjust the pressure of the hydraulic press to zero, move the lower worktable down, separate the upper mold from the lower mold, take out the thin-walled deck, and an "X" shape will appear in the middle of the thin-walled deck after pressing. Turn off the hydraulic press.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention can process an integrally formed "X" shape structure on the thin-walled box truss structure vehicle body deck, preventing product wrinkling and deformation, increasing the rigidity of the thin-walled deck, and thus reducing welding deformation of the thin-walled box truss structure vehicle body. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model (front view);

[0022] Figure 2 This is a schematic diagram (top view) of the structure of this utility model after the upper mold has been removed.

[0023] The components are: 1. Upper mold, 2. Upper mold base, 3. Rubber ring, 4. Pressure ring, 5. Lower mold, 6. Conical pin, 7. Lifting pin, 8. Unloading screw, 9. Screw. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited thereto.

[0025] like Figure 1 As shown, this utility model includes an upper mold 1, an upper mold base 2, a rubber ring 3, a pressure ring 4, a lower mold 5, a conical pin 6, a lifting pin 7, a stripper screw 8, and a screw 9. The upper mold 1, the upper mold base 2, the rubber ring 3, and the pressure ring 4 are connected by the stripper screw 8, the screw 9, and the conical pin 6.

[0026] The main steps for using the above mold are as follows:

[0027] (1) The upper mold 1 of the forming die is connected to the upper worktable of the hydraulic press, and the lower mold 5 is connected to the lower worktable of the hydraulic press by pressure plates;

[0028] (2) Separate the upper and lower worktables of the hydraulic press and place the thin-walled deck to be pressed flat on the upper surface of the lower mold 5;

[0029] (3) Start the hydraulic press and move the lower worktable of the hydraulic press upward until the lower mold 5 and the upper mold seat 2 are closed. Hold the pressure for 60 seconds (because the upper mold seat 2 is equipped with an elastic rubber ring, the lower mold 5 has upward movement space when holding the pressure, which can make the forming effect better). Use the extrusion of the upper mold seat 2 and the lower mold 5 to complete the thin-walled deck forming process.

[0030] (4) Adjust the pressure of the hydraulic press to zero, move the lower worktable down, separate the upper mold 1 and the lower mold 5, take out the thin-walled deck, and an "X" shape will appear in the middle of the thin-walled deck after pressing. Turn off the hydraulic press. Example

[0031] Taking thin-walled steel plate as an example, the material is 2mm thick S700MC steel plate. The test is carried out according to the above steps (1)-(4). The thin-walled steel plate after being pressed by this mold can prevent the steel plate from wrinkling and deforming, increase the rigidity of the thin-walled plate, and thus reduce the welding deformation of the thin-walled box truss structure vehicle body.

Claims

1. A forming mold for a thin-walled box-type truss structure vehicle body deck, characterized in that, It includes an upper mold, an upper mold base, a rubber ring, a pressure ring, a lower mold, a tapered pin, a lifting pin, a stripper screw, and a screw. The upper mold, upper mold base, rubber ring, and pressure ring are connected by the stripper screw, screw, and tapered pin.

2. The thin-walled box-truss structure vehicle body deck forming mold according to claim 1, characterized in that, The lower surface of the upper mold and the upper mold base is shaped to protrude outwards; the upper surface of the lower mold is shaped to be concave inwards, and the upper mold base and the lower mold are correspondingly set to match each other in shape.

3. The thin-walled box-truss structure vehicle body deck forming mold according to claim 1, characterized in that, The upper surface of the lower mold can directly fit against the thin-walled deck. When the lower worktable of the hydraulic press moves upward, the upper mold seat and the lower mold close. As the rubber ring is compressed, the thin-walled deck forms an "X" structure.

4. The thin-walled box-truss structure vehicle body deck forming mold according to claim 1, characterized in that, The rubber ring has an elastic shrinkage capacity, which, together with the pressure ring, prevents the thin plate from wrinkling.

5. The thin-walled box-truss structure vehicle body deck forming mold according to claim 1, characterized in that, The lifting pin is welded to the upper mold base.

6. The thin-walled box-truss structure vehicle body deck forming mold according to claim 1, characterized in that, Both the upper and lower molds are designed with stepped shapes and are stably connected to the hydraulic press worktable using T-bolts.

7. The thin-walled box-truss structure vehicle body deck forming mold according to claim 1, characterized in that, Both the upper and lower molds are designed with vents.

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