Stamping die for middle cover of oil tank

By designing the four side locking grooves and buffer plate structure of the shaping base in the stamping die of the oil tank cover, the problem of displacement of the shaping base during the stamping process is solved, achieving the effect of positioning and protecting the connection structure, and improving the qualification rate of stamped products.

CN223748415UActive Publication Date: 2026-01-02CHONGQING KECHEN MACHINERY CO LTD
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Patent Information

Application Number
CN202520186690.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-01-02
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

When stamping to form the fuel tank cap, the forming base needs to withstand a large pressure, which makes its connecting structure prone to displacement. Existing molds are difficult to effectively position and protect the connecting structure.

Method used

A stamping die for an oil tank cover was designed. The die has a structure with snap-fit ​​grooves on the four sides of the shaping base. The combination of mounting plate, adjusting block and buffer plate can achieve positioning and buffering of the shaping base, reducing the pressure on the connecting structure.

Benefits of technology

It effectively prevents the shaping base from shifting during the stamping process, improves the pass rate of stamped products, and reduces the pressure on the connecting structure through the buffer plate, protecting its integrity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stamping dies, in particular to an oil tank middle cover stamping die which comprises an upper pressing plate and a lower die plate, a shaping base is arranged at the upper end of the lower die plate, a die cavity is formed in the middle of the upper pressing plate, the shaping base directly faces the die cavity, clamping grooves are formed in the four side edges of the shaping base, and mounting plates are inserted into the clamping grooves. The lower end of the shaping base is fixedly connected with a positioning plate and a supporting plate through bolts, the positioning plate and the supporting plate are embedded in the lower die plate, the interior of the mounting plate is hollow, a sliding groove is formed in the inner wall of the mounting plate, an adjusting block is slidably connected into the sliding groove, and the side end of the adjusting block is fixedly connected with a buffering plate. A fixing plate is inserted into the mounting groove, an extrusion block is fixedly connected to the lower end of the fixing plate, an adjusting bolt is connected to the middle of the mounting plate in a threaded mode, and a control block is slidably connected to the inner wall of the mounting plate.
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Description

TECHNICAL FIELD

[0001] The utility model relates to stamping die technical field, concretely is a kind of oil tank middle cover stamping die. BACKGROUND

[0002] Oil tank is the important component of vehicle, because the different of vehicle type, the chassis structure of vehicle is also different, to adapt to different vehicle chassis, leading to the upper end structure of oil tank also becomes different, to facilitate the installation of oil tank, the upper end of oil tank will be divided into multiple structures.But when stamping forms oil tank cover, to ensure that metal can be deformed smoothly, greater pressure is applied, but this also leads to the fixed base of stamping die to bear greater pressure, while the lower end connecting fixed structure of fixed base also bears greater pressure, need to use relatively solid material to make the connecting structure of fixed base, otherwise leading to the displacement of fixed base. SUMMARY

[0003] The utility model discloses a kind of oil tank middle cover stamping die, to solve the problem raised in above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of oil tank middle cover stamping die, including upper pressing plate and lower die plate, the upper end of lower die plate is equipped with fixed base, the middle of upper pressing plate is equipped with model cavity, the fixed base is directly opposite model cavity, four side edges of the fixed base are all equipped with clamping groove, installation plate is inserted in the clamping groove, the lower end of the fixed base is fixedly connected with positioning plate and support plate by bolt, the positioning plate and support plate are all embedded in lower die plate, the inside of installation plate is hollow, the inner wall of installation plate is equipped with sliding slot, the sliding slot is slidably connected with adjusting block, the side end of adjusting block is fixedly connected with buffer plate, the inside of fixed base is equipped with installation groove, the installation groove is inserted with fixed plate, the lower end of fixed plate is fixedly connected with extrusion block, the middle of installation plate is screw-connected with adjusting bolt, the inner wall of installation plate is slidably connected with control block.

[0005] Preferably, the width of the support plate is the same as the width of the fixed base, the width of the positioning plate is less than the width of the fixed base, and the three installation plates are located at the three side walls of the positioning plate.

[0006] Preferably, the upper end of the fixed plate is inserted into the installation groove, the lower end of the fixed plate is located in the installation plate, the side wall lower end of the installation groove is an inclined surface, and the inclined surface is fixedly connected with a fixed sheet.

[0007] Preferably, the fixed sheet is an elastic iron sheet, the fixed sheet is an arc-shaped structure, the side end of the fixed plate is provided with a fixed groove, and the fixed sheet and the fixed groove are mutually clamped.

[0008] Preferably, the lower end of the extrusion block is an inclined surface, the upper end of the buffer plate is an arc structure, the upper end of the buffer plate abuts against the inclined surface of the extrusion block, and the side end of the buffer plate is provided with a deformation groove.

[0009] Preferably, the side end of the control block and the adjusting block are provided with inclined surfaces, and the inclined surfaces of the control block and the adjusting block abut against each other, and the upper end of the adjusting bolt abuts against the lower end of the control block.

[0010] Compared with the prior art, the utility model has the beneficial effects that: the side end of the positioning plate is provided with three mounting plates, thereby positioning and mounting the position of the shaping base, avoiding movement of the shaping base during stamping, and ensuring the qualified rate of the stamped product; during stamping, the buffer plate buffers the stamping force, reduces the pressure on the lower end connecting portion of the shaping base, the buffer plate will break when the stamping force is too large, avoiding that the pressure is completely applied to the lower end connecting structure of the shaping base, and ensuring protection of the connecting structure. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a schematic view of a three-dimensional structure of a stamping die.

[0012] Fig. 2 It is a schematic view of a connecting structure of a shaping base.

[0013] Fig. 3 It is an enlarged schematic view of A.

[0014] In the drawing: 1 upper pressing plate, 2 shaping base, 3 mounting plate, 4 clamping groove, 5 positioning plate, 6 supporting plate, 7 lower die plate, 8 mounting groove, 9 fixed piece, 10 fixed plate, 11 fixed groove, 12 extrusion block, 13 buffer plate, 14 adjusting block, 15 control block, 16 adjusting bolt, 17 sliding groove. DETAILED DESCRIPTION

[0015] In order to deepen the understanding and recognition of the utility model, the technical scheme in the utility model embodiment will be clearly and completely described and introduced in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments, and does not limit the embodiment in any form. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0016] Please refer to Figs. 1-3The utility model provides a technical scheme: an oil tank middle cover stamping die, including upper pressure plate 1 and lower die plate 7, the upper end of lower die plate 7 is equipped with the shaping base 2, the middle of upper pressure plate 1 is equipped with the model cavity, the shaping base 2 is directly opposite the model cavity, the four side edges of shaping base 2 are all equipped with the clamping groove 4, and the installation plate 3 is inserted in the clamping groove 4, the lower end of shaping base 2 is fixedly connected with the locating plate 5 and the support plate 6 through bolt, the locating plate 5 and the support plate 6 are all embedded in lower die plate 7, the inside of installation plate 3 is hollow, the inner wall of installation plate 3 is equipped with the sliding slot 17, the adjusting block 14 is slidably connected in the sliding slot 17, the side end of adjusting block 14 is fixedly connected with the buffer plate 13, the inside of shaping base 2 is equipped with the installation groove 8, the fixed plate 10 is inserted in the installation groove 8, the lower end of fixed plate 10 is fixedly connected with the extrusion block 12, the middle of installation plate 3 is threadedly connected with the adjusting bolt 16, and the inner wall of installation plate 3 is slidably connected with the control block 15.

[0017] The width of support plate 6 is same with the width of shaping base 2, the width of locating plate 5 is less than the width of shaping base 2, three installation plates 3 are located at three side walls of locating plate 5, can position shaping base 2, ensure the position of shaping base 2, ensure the qualified rate of die stamping forming.

[0018] The upper end of fixed plate 10 is inserted in the installation groove 8, the lower end of fixed plate 10 is located in installation plate 3, the side wall lower end of installation groove 8 is inclined surface, the inclined surface is fixedly connected with the fixed sheet 9, the fixed sheet 9 is elastic iron sheet, the fixed sheet 9 is arc structure, the side end of fixed plate 10 is equipped with the fixed groove 11, the fixed sheet 9 and the fixed groove 11 are mutually clamped, and the inclined surface of installation groove 8 can guide the installation of fixed plate 10, makes fixed plate 10 more easily install, when fixed plate 10 is inserted into installation groove 8, the fixed sheet 9 is clamped into the fixed groove 11, and the fixed plate 10 is fixed in position.

[0019] The lower end of extrusion block 12 is inclined surface, the upper end of buffer plate 13 is arc structure, the upper end of buffer plate 13 abuts on the inclined surface of extrusion block 12, the side end of buffer plate 13 is equipped with the deformation groove, the side end of control block 15 and adjusting block 14 is all equipped with inclined surface, and the inclined surface of two mutually abuts together, the upper end of adjusting bolt 16 abuts on the lower end of control block 15, by rotating adjusting bolt, adjusting bolt extrudes control block 15, thereby lifting control block 15, control block 15 drives adjusting block 14 and buffer plate 13 to move, makes buffer plate 13 move along sliding slot 17, changes the position of buffer plate 13, and the buffer plate abuts on the lower end of extrusion block 12, supports extrusion block 12, when stamping forms the oil tank middle cover, the pressure that buffer plate 13 bears to shaping base 2 is buffered, when the pressure is too big, buffer plate 13 will break, thereby protecting shaping base 2.

[0020] Although the embodiments of the utility model have been shown and described, it needs to emphasize: the above description is only the introduction and description of the use mode of the embodiments of the utility model, and is not any form of restriction on the utility model. For ordinary skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An oil filler cap stamping die comprising an upper platen (1) and a lower die plate (7), characterised in that: The upper end of the lower mold plate (7) is provided with a shaping base (2), the middle of the upper pressing plate (1) is provided with a mold cavity, the shaping base (2) is opposite to the mold cavity, the four side edges of the shaping base (2) are provided with clamping grooves (4), the clamping grooves (4) are inserted with mounting plates (3), the lower end of the shaping base (2) is fixedly connected with a positioning plate (5) and a supporting plate (6) through bolts, the positioning plate (5) and the supporting plate (6) are embedded in the lower mold plate (7), the mounting plate (3) is hollow, the inner wall of the mounting plate (3) is provided with a sliding groove (17), the sliding groove (17) is slidably connected with an adjusting block (14), the side end of the adjusting block (14) is fixedly connected with a buffer plate (13), the inside of the shaping base (2) is provided with a mounting groove (8), the mounting groove (8) is inserted with a fixed plate (10), the lower end of the fixed plate (10) is fixedly connected with an extrusion block (12), the middle of the mounting plate (3) is threadedly connected with an adjusting bolt (16), and the inner wall of the mounting plate (3) is slidably connected with a control block (15).

2. The fuel tank cap stamping die of claim 1, wherein: The width of the supporting plate (6) is the same as the width of the shaping base (2), the width of the positioning plate (5) is smaller than the width of the shaping base (2), and the three mounting plates (3) are located at the three side walls of the positioning plate (5).

3. The fuel tank cap stamping die of claim 1, wherein: The upper end of the fixed plate (10) is inserted into the mounting groove (8), the lower end of the fixed plate (10) is located in the mounting plate (3), and the side wall lower end of the mounting groove (8) is an inclined surface, and the inclined surface is fixedly connected with a fixed sheet (9).

4. The fuel tank cap stamping die of claim 3, wherein: The fixed sheet (9) is an elastic iron sheet, the fixed sheet (9) is an arc-shaped structure, the side end of the fixed plate (10) is provided with a fixed groove (11), and the fixed sheet (9) and the fixed groove (11) are clamped with each other.

5. The fuel tank cap stamping die of claim 1, wherein: The lower end of the extrusion block (12) is an inclined surface, the upper end of the buffer plate (13) is an arc-shaped structure, the upper end of the buffer plate (13) abuts against the inclined surface of the extrusion block (12), and the side end of the buffer plate (13) is provided with a deformation groove.

6. The fuel tank cap stamping die of claim 1, wherein: The side end of the control block (15) and the adjusting block (14) is provided with an inclined surface, and the inclined surfaces of the two abut against each other, and the upper end of the adjusting bolt (16) abuts against the lower end of the control block (15).