Floating material supporting and positioning device of stamping die

Abstract

The utility model discloses a floating material supporting and positioning device of a stamping die, which relates to the field of stamping dies and comprises a lifting jack arranged on a lower die holder, a material supporting and positioning plate detachably connected with the lifting jack and a pressing component arranged on an upper die holder. A mounting groove is formed in the lower die base, the lifting jack is arranged in the mounting groove and is movably arranged, the lifting jack extends out of the mounting groove and lifts the material supporting and positioning plate when the die is not closed, and the lifting jack is compressed by the downward pressing assembly and retracts into the mounting groove when the die is closed. According to the scheme, the material supporting and positioning plate is arranged to be in a floating type, and before die assembly, the material supporting and positioning plate is located at the high position under the action of the lifting jack and can support and position a material sheet; during die assembly, under the action of the downward pressing assembly, the lifting jack drives the material supporting positioning plate to descend, so that the material supporting positioning plate is located at the lower position, does not interfere with a material piece, does not shield a turned edge, and improves the success rate of the turned edge.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, and more specifically, to a floating material support and positioning device for stamping dies. Background Technology

[0002] An automotive flanging die is a type of mold used in the automobile manufacturing process, primarily for flanging the edges of sheet metal. Flanging refers to bending the edge of a metal sheet at a certain angle to strengthen the structure, increase strength, or facilitate subsequent processing. Automotive flanging dies are commonly used in the manufacture of body parts, such as doors, roofs, and fenders.

[0003] Currently, when designing automotive flanging dies, sheet metal positioning plates are commonly used. However, due to unreasonable structural design, the sheet metal positioning plates interfere with the flanging of the sheet metal, often resulting in problems such as failure to flanging smoothly. Even if flanging is successfully carried out, there are still problems such as roughening or deformation of the sheet metal during the flanging process. Utility Model Content

[0004] The purpose of this utility model is to provide a floating material support and positioning device for stamping dies, so as to solve the technical problems existing in the background art.

[0005] This utility model provides a floating material support and positioning device for stamping dies, including a lifter set on the lower die base, a material support and positioning plate detachably connected to the lifter, and a pressing component set on the upper die base;

[0006] The lower mold base is provided with an installation groove, and the lifter is disposed in the installation groove. The lifter is movable. When the mold is not closed, the lifter extends out of the installation groove and lifts the material positioning plate. When the mold is closed, the pressing component compresses the lifter and retracts it into the installation groove.

[0007] In a preferred embodiment, the pressure-down assembly includes a nitrogen cylinder with its output end facing the lifter.

[0008] In a preferred embodiment, both the lifter and the material positioning plate are provided with limit grooves, and the output end of the nitrogen cylinder is inserted into the limit groove.

[0009] In a preferred embodiment, the material support positioning plate includes an mounting part and a material support positioning part.

[0010] In a preferred embodiment, the positioning material support part is provided with a sheet support part and an arc-shaped guide part to facilitate the placement of the sheet. The arc-shaped guide part is located at the top of the positioning material support part, and the sheet support part is located at the bottom of the positioning material support part.

[0011] In a preferred embodiment, the lifter includes a lifting seat slidably disposed in the mounting groove, the top surface of the lifting seat is provided with a mounting platform, and the material support positioning plate is mounted on the mounting platform by bolts.

[0012] The beneficial effects of this utility model's technical solution are:

[0013] This solution sets the material support positioning plate as floating. Before mold closing, the material support positioning plate is positioned high by the lifter to support and position the material sheet. When the mold closes, the lifter lowers the material support positioning plate under the action of the pressing component, so that the material support positioning plate is positioned low and does not interfere with the material sheet, thus not obstructing the flanging and improving the success rate of flanging. Attached Figure Description

[0014] Figure 1 This is a diagram showing the position of the material support positioning plate when the mold is not closed, according to this utility model.

[0015] Figure 2 This is a diagram showing the position of the material support positioning plate during mold closing in this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged view of part A in the middle.

[0017] Explanation of reference numerals in the attached drawings: 1 Lower die base, 11 Punch, 12 Positioning pin, 2 Upper die base, 21 Pressure plate, 22 Flanging cutter block, 3 Material sheet, 4 Material support positioning plate, 41 Mounting part, 42 Material support part, 43 Arc-shaped guide part, 5 Lifting seat, 6 Nitrogen cylinder, 7 Mounting groove, 8 Limiting groove. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0019] like Figure 1-3 As shown, this utility model provides a floating material support and positioning device for stamping dies, including a lifter mounted on a lower die base 1, a material support and positioning plate 4 detachably connected to the lifter, and a pressing component mounted on an upper die base 2. The lower die base 1 is provided with a mounting groove 7, and the lifter is disposed within the mounting groove 7, and the lifter is movably mounted.

[0020] The positioning devices in this design are distributed on the upper mold base 2 and the lower mold base 1. The punch 11 on the lower mold base 1 is also equipped with a positioning pin 12 and other structures. The upper mold base 2 is also equipped with a pressure plate 21, a flanging cutter block 22, and other structures, completing the flanging of the sheet 3 during mold closing. The positioning pin 12 and the material support positioning plate 4 can position the sheet 3 to ensure accurate positioning. When the mold is not closed, the lifter extends out of the mounting slot 7 and lifts the material support positioning plate 4, which can be used to support and position the sheet 3. During mold closing, the pressing component compresses the lifter and retracts it into the mounting slot 7. At this time, the material support positioning plate 4 descends along with the lifter, making way for the upper mold and avoiding interference with the flanging process. This design sets the material support positioning plate 4 as a floating type, such as... Figure 2 As shown, during the flanging process, the material positioning plate 4 is located at a low position and does not interfere with the material sheet 3, thus not obstructing the flanging and improving the success rate of flanging.

[0021] The lifter includes a lifting seat 5 slidably disposed within the mounting groove 7. An mounting platform is provided on the top surface of the lifting seat 5, and the material support positioning plate 4 is bolted to the mounting platform. Under the action of the pressing component, the lifter moves downwards into the mounting groove 7. When the force of the pressing component is removed, the lifter rises and resets. The lifting seat 5 can achieve automatic lifting and reset after pressing using springs, pneumatics, or other means. The specific implementation method is not limited; any method that achieves automatic lifting and reset after pressing is acceptable.

[0022] The pressing assembly includes a nitrogen cylinder 6 with its output end facing the lifter. Both the lifter and the material support positioning plate 4 are provided with limit grooves 8, and the output end of the nitrogen cylinder 6 is inserted into the limit groove 8. During mold closing, the push rod of the nitrogen cylinder 6 extends into the limit groove 8 and presses down on the lifter 5, causing the material support positioning plate 4 to descend with the lifter 5 to cover the flange of the material sheet 3.

[0023] The material support and positioning plate 4 includes an mounting part 41 and a positioning and supporting part. The positioning and supporting part is provided with a sheet material support part 42 and an arc-shaped guide part 43 for easy placement of the sheet material 3. The arc-shaped guide part 43 is located at the top of the positioning and supporting part, and the sheet material support part 42 is located at the bottom of the positioning and supporting part. The arc-shaped guide part 43 facilitates the placement of the sheet material 3 between the positioning and supporting parts of the two material support and positioning plates 4, and the bottom positioning and supporting part supports the sheet material 3.

[0024] This solution can be applied to general mold plate material support and positioning structures, and can be used in plate flange structures. It is compact, simple, stable, and has low manufacturing cost.

[0025] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A floating material support and positioning device for stamping dies, characterized in that: The lifting device is arranged on the lower die seat, the material supporting positioning plate is detachably connected with the lifting device, and the pressing assembly is arranged on the upper die seat; The lower die seat is provided with a mounting groove, the lifting device is arranged in the mounting groove, and the lifting device is movably arranged, and when the mold is not closed, the lifting device extends out of the mounting groove and lifts the material supporting positioning plate, and when the mold is closed, the pressing assembly compresses the lifting device to retract into the mounting groove.

2. A floating stripper positioning device for a punch press as defined in claim 1 wherein: The pressing assembly comprises a nitrogen cylinder with an output end facing the lifting device.

3. A floating stripper positioning device for a punch press as defined in claim 2 wherein: The lifting device and the material supporting positioning plate are both provided with a limiting groove, and the output end of the nitrogen cylinder is inserted into the limiting groove.

4. The floating stripper positioning apparatus of claim 1 wherein: The material supporting positioning plate comprises a mounting portion and a positioning material supporting portion.

5. A floating stripper positioning device for a punch press as defined in claim 4 wherein: The positioning material supporting portion is provided with a material supporting portion and an arc-shaped guiding portion facilitating the placement of the material sheet, the arc-shaped guiding portion is arranged on the top of the positioning material supporting portion, and the material supporting portion is arranged on the bottom of the positioning material supporting portion.

6. The floating stripper positioning apparatus of claim 1 wherein: The lifting device comprises a lifting seat slidably arranged in the mounting groove, and the top surface of the lifting seat is provided with a mounting platform, and the material supporting positioning plate is mounted on the mounting platform through bolts.

Images