Steel shell stamping die

Abstract

The utility model discloses a steel shell stamping die which comprises an upper die base and a lower die base, and an edge cutting assembly and a stretching assembly are arranged between the upper die base and the lower die base. The edge cutting assembly comprises an upper cutting die and a lower cutting die, the upper cutting die is arranged on the upper die base, the lower cutting die is arranged on the lower die base, the edge of the bottom of the upper cutting die is provided with a cutting edge, the lower cutting die is provided with a cutting edge matched with the cutting edge in appearance, and the cutting edge and the cutting edge are matched for cutting to obtain a blank with the needed size; the stretching assembly comprises a forming punch and a forming female die which are matched with each other, the forming punch is arranged in the upper cutting die and extends out of the bottom end of the upper cutting die, the forming female die is arranged at the bottom of the cutting edge, and the forming punch and the forming female die are matched for stretching to obtain the steel shell. According to the utility model, the product yield can be improved, and the mold cost and the manufacturing cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a steel shell stamping mold. Background Art

[0002] In the traditional production of stretched steel shells, a multi-step stretching forming method is adopted. Generally, there are multiple stations in the mold, such as a cutting station and at least one stretching station. The cutting station and the stretching station are distributed along the conveying direction of the material strip. Therefore, during processing, the material strip is cut into a certain shape through the cutting station, and then stretched through the stretching station to form a steel shell.

[0003] However, the existing process of stretching steel shells requires several steps of stretching, which can easily lead to serious scratches on the side walls of the product, unstable dimensions, and a high defect rate. In addition, the manufacturing cost of multi-step stretching molds is high, and the low production efficiency increases costs. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a steel shell stamping die, which can improve the product yield and reduce the die cost and manufacturing cost.

[0005] According to a first aspect of the utility model, a steel shell stamping die comprises an upper die base and a lower die base, wherein a trimming assembly and a stretching assembly are arranged between the upper die base and the lower die base; the trimming assembly comprises an upper cutting die and a lower cutting die, wherein the upper cutting die is arranged on the upper die base, and the lower cutting die is arranged on the lower die base, a blade is arranged on the bottom edge of the upper cutting die, and a cutting edge matched with the blade shape is arranged on the lower cutting die, and the blade and the cutting edge cooperate to cut to obtain a blank of a required size; the stretching assembly comprises a forming punch and a forming die that match each other, wherein the forming punch is arranged in the upper cutting die and extends from the bottom end of the upper cutting die, and the forming die is arranged at the bottom of the cutting edge, and the forming punch and the forming die cooperate to stretch to obtain a steel shell.

[0006] A steel shell stamping die according to an embodiment of the utility model has at least the following beneficial effects:

[0007] 1. The utility model sets an upper cutting die and a lower cutting die, and the blade at the bottom of the upper cutting die cooperates with the blade at the top of the lower cutting die to cut the material strip, so as to obtain a blank of a required size. The cutting station and the forming station are at the same position, and the stretching component can directly punch and stretch the blank without moving the position of the blank, thereby improving the punching efficiency.

[0008] 2. The utility model provides a forming punch and a forming die, and the forming punch and the forming die cooperate to punch and stretch the blank to obtain the required steel shell, without the need for multiple stretching, thereby improving the stretching efficiency and reducing defective products.

[0009] 3. Compared with the traditional multi-step stretching die, the utility model adopts the structure of cutting and stretching stamping in the same station, which can improve the accuracy of stamping and stretching, meet the size requirements of the product, greatly reduce the defective rate, and effectively reduce the mold development cost and manufacturing cost.

[0010] According to some embodiments of the utility model, the upper cutting die is provided with a positioning hole which passes through from top to bottom, and the top of the forming punch extends upward along the positioning hole and is adapted to the positioning hole.

[0011] According to some embodiments of the utility model, a first fixing plate is provided at the bottom of the upper die seat, the top of the forming punch extends to the first fixing plate, and the forming punch is detachably connected to the first fixing plate.

[0012] According to some embodiments of the utility model, a second fixing plate is provided at the bottom of the upper die seat, and a first connecting frame is provided on the upper cutting die, and the first connecting frame is connected to the second fixing plate.

[0013] According to some embodiments of the present invention, the second fixing plate is provided with a positioning groove adapted to the shape of the first connecting frame.

[0014] According to some embodiments of the present invention, the second fixing plate is provided with a support column, and a step is provided on one side of the support column, and the step is used to support the first connecting frame.

[0015] According to some embodiments of the utility model, the forming die includes a ring die and a support seat located inside the ring die, and the ring die is adapted to the forming punch.

[0016] According to some embodiments of the present invention, a guide curved surface is provided at the top end of the ring die, and the guide curved surface extends from the inside to the outside of the ring die.

[0017] According to some embodiments of the utility model, a convex ring is provided on the top of the ring die, and the lower knife die is provided with a ring groove matched with the convex ring.

[0018] According to some embodiments of the utility model, a second connecting frame is connected between the lower cutting die and the forming concave die, and the lower die base is provided with a third fixing plate, and the third fixing plate is connected to the second connecting frame.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a structural schematic diagram of a cross section of a steel shell stamping die according to an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of a trimming component and a stretching component of a steel shell stamping die is shown;

[0023] Figure 3 for Figure 1 A schematic structural diagram of another cross section of a steel shell stamping die is shown;

[0024] Figure 4 for Figure 1 A schematic structural diagram of a lower die base of a steel shell stamping die is shown;

[0025] Figure 5 for Figure 1 A partial structural schematic diagram of a steel shell stamping die is shown;

[0026] Figure 6 for Figure 1 A schematic structural diagram of a first connecting frame of a steel shell stamping die is shown;

[0027] Figure 7 for Figure 1 A schematic structural diagram of a steel shell of a steel shell stamping die is shown.

[0028] Figure markings: 100-upper die base, 110-lower die base, 120-upper cutting die, 130-lower cutting die, 140-blade, 150-cutting edge, 160-forming punch, 170-forming die, 180-positioning hole, 190-first fixed plate, 200-second fixed plate, 210-first connecting frame, 230-positioning groove, 240-support column, 250-step, 260-ring die, 270-support seat, 280-guide curved surface, 290-convex ring, 310-second connecting frame, 320-third fixed plate, 330-steel shell. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations 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.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] 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.

[0033] A steel shell stamping die according to an embodiment of the utility model is described below in conjunction with the accompanying drawings.

[0034] Reference Figure 1 A steel shell stamping die according to an embodiment of the utility model comprises an upper die base 100 and a lower die base 110 , and a trimming component and a stretching component are arranged between the upper die base 100 and the lower die base 110 .

[0035] Reference Figure 7 , the structure of the steel shell 330 is disc-shaped.

[0036] The trimming assembly includes an upper cutting die 120 and a lower cutting die 130, as shown in FIG. Figure 1 , Figure 2 and Figure 5 The upper cutting die 120 is arranged on the upper die base 100, and the lower cutting die 130 is arranged on the lower die base 110. The bottom edge of the upper cutting die 120 is provided with a blade 140, and the lower cutting die 130 is provided with a cutting edge 150 adapted to the shape of the blade 140. The blade 140 and the cutting edge 150 cooperate to cut to obtain a blank of a desired size.

[0037] It should be noted that the upper cutting die 120 is cylindrical and the lower cutting die 130 is annular.

[0038] Therefore, the blade 140 at the bottom of the upper cutting die 120 and the blade 150 at the top of the lower cutting die 130 cooperate to cut the material strip, so that the blank of the required size can be obtained. The cutting station and the forming station are at the same position. The stretching assembly can directly stamp and stretch the blank without moving the position of the blank, thereby improving the stamping efficiency.

[0039] The stretching assembly includes a forming punch 160 and a forming die 170 adapted to each other, as shown in FIG. Figure 1 , Figure 2 and Figure 5 The forming punch 160 is arranged in the upper cutting die 120 and extends from the bottom end of the upper cutting die 120. The forming die 170 is arranged at the bottom of the cutting edge 150. The forming punch 160 and the forming die 170 cooperate to stretch to obtain the steel shell 330.

[0040] It should be noted that the forming punch 160 is cylindrical, and the forming punch 160 and the upper cutting die 120 are coaxially arranged.

[0041] Therefore, the forming punch 160 and the forming die 170 cooperate to punch and stretch the blank to obtain the required steel shell 330 without multiple stretching, thereby improving the stretching efficiency and reducing defective products.

[0042] In some embodiments of the present invention, the upper cutting die 120 is provided with a positioning hole 180 which passes through from top to bottom, and the top of the forming punch 160 extends upward along the positioning hole 180 and is adapted to the positioning hole 180 .

[0043] Therefore, the positioning hole 180 can position the forming punch 160, ensure that the relative position of the forming punch 160 and the upper cutting die 120 is correct, and improve the stamping accuracy.

[0044] In some embodiments of the present invention, a first fixing plate 190 is disposed at the bottom of the upper die base 100 , the top of the forming punch 160 extends to the first fixing plate 190 , and the forming punch 160 is detachably connected to the first fixing plate 190 .

[0045] Therefore, according to the shape requirements of the product, the forming punch 160 can be removed from the first fixing plate 190, and the forming punch 160 of different shapes can be replaced, so that different products can be punched.

[0046] In some embodiments of the present invention, a second fixing plate 200 is disposed at the bottom of the upper die base 100 , and a first connecting frame 210 is disposed on the upper cutting die 120 , and the first connecting frame 210 is connected to the second fixing plate 200 .

[0047] Therefore, according to the shape requirements of the product, the upper cutting die 120 is installed on the first fixing plate 190 through the first connecting frame 210, so as to facilitate the installation of upper cutting dies 120 of different shapes.

[0048] In some embodiments of the present invention, referring to Figure 6 The second fixing plate 200 is provided with a positioning groove 230 adapted to the shape of the first connecting frame 210, thereby facilitating the installation and positioning of the first connecting frame 210.

[0049] In some embodiments of the present invention, referring to Figure 3 and Figure 4 The second fixing plate 200 is provided with a support column 240, and a step 250 is provided on one side of the support column 240. The step 250 is used to support the first connecting frame 210, thereby improving the flatness of the first connecting frame 210 and ensuring the stamping accuracy.

[0050] In some embodiments of the present invention, the forming die 170 includes a ring die 260 and a support seat 270 located inside the ring die 260 , and the ring die 260 is adapted to the forming punch 160 .

[0051] The ring die 260 and the support seat 270 are designed as separate parts. When the forming die 170 is damaged, the damaged parts can be replaced specifically, that is, the ring die 260 or the support seat 270 can be replaced, thereby reducing the maintenance cost.

[0052] In some embodiments of the present invention, referring to Figure 5 A guide curved surface 280 is provided at the top of the ring die 260, and the guide curved surface 280 extends from the inside to the outside of the ring die 260, so that the surface of the guide curved surface 280 is smooth, thereby avoiding damage to the product surface during the stretching process.

[0053] In some embodiments of the utility model, a convex ring 290 is provided on the top of the ring die 260, and a ring groove adapted to the convex ring 290 is provided on the lower cutting die 130, thereby facilitating the installation and positioning of the lower cutting die 130 and improving the connection accuracy between the lower cutting die 130 and the ring die 260.

[0054] In some embodiments of the present invention, a second connecting frame 310 is connected between the lower cutting die 130 and the forming die 170 , and the lower die base 110 is provided with a third fixing plate 320 , which is connected to the second connecting frame 310 .

[0055] Therefore, according to the shape requirements of the product, the lower cutting die 130 is installed on the third fixing plate 320 through the second connecting frame 310, so as to facilitate the installation of the lower cutting die 130 of different shapes.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A steel shell stamping die, characterized in that: It comprises an upper die base (100) and a lower die base (110), wherein a trimming component and a stretching component are arranged between the upper die base (100) and the lower die base (110); The trimming assembly comprises an upper cutting die (120) and a lower cutting die (130); the upper cutting die (120) is arranged on the upper die base (100); the lower cutting die (130) is arranged on the lower die base (110); a blade (140) is arranged on the bottom edge of the upper cutting die (120); the lower cutting die (130) is provided with a cutting edge (150) that matches the shape of the blade (140); the blade (140) and the cutting edge (150) cooperate to cut to obtain a blank of a desired size; The stretching assembly comprises a forming punch (160) and a forming die (170) that are adapted to each other. The forming punch (160) is arranged in the upper cutting die (120) and extends from the bottom end of the upper cutting die (120). The forming die (170) is arranged at the bottom of the cutting edge (150). The forming punch (160) and the forming die (170) cooperate in stretching to obtain a steel shell (330).

2. A steel shell stamping die according to claim 1, characterized in that: The upper cutting die (120) is provided with a positioning hole (180) which passes through from top to bottom, and the top of the forming punch (160) extends upward along the positioning hole (180) and is matched with the positioning hole (180).

3. A steel shell stamping die according to claim 1, characterized in that: A first fixing plate (190) is provided at the bottom of the upper die seat (100), the top of the forming punch (160) extends to the first fixing plate (190), and the forming punch (160) is detachably connected to the first fixing plate (190).

4. A steel shell stamping die according to claim 1, characterized in that: A second fixing plate (200) is provided at the bottom of the upper die seat (100), and a first connecting frame (210) is provided on the upper cutting die (120), wherein the first connecting frame (210) is connected to the second fixing plate (200).

5. A steel shell stamping die according to claim 4, characterized in that: The second fixing plate (200) is provided with a positioning groove (230) adapted to the outer shape of the first connecting frame (210).

6. A steel shell stamping die according to claim 4, characterized in that: The second fixing plate (200) is provided with a support column (240), and a step (250) is provided on one side of the support column (240), and the step (250) is used to support the first connecting frame (210).

7. The steel shell stamping die according to claim 1, characterized in that: The forming die (170) comprises a ring die (260) and a support seat (270) located inside the ring die (260), and the ring die (260) is adapted to the forming punch (160).

8. The steel shell stamping die according to claim 7, characterized in that: A guide curved surface (280) is provided at the top end of the ring die (260), and the guide curved surface (280) extends from the inside to the outside of the ring die (260).

9. The steel shell stamping die according to claim 7, characterized in that: The top of the ring die (260) is provided with a convex ring (290), and the lower knife die (130) is provided with a ring groove matched with the convex ring (290).

10. The steel shell stamping die according to claim 1, characterized in that: A second connecting frame (310) is connected between the lower cutting die (130) and the forming concave die (170), and the lower die base (110) is provided with a third fixing plate (320), and the third fixing plate (320) is connected to the second connecting frame (310).

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