CN215657413U

CN215657413U - Closed angle stamping die and stamping equipment

Info

Publication number: CN215657413U
Application number: CN202122337102.0U
Authority: CN
Inventors: 龙贤辉
Original assignee: Dongguan Huabei Electronic Technology Co Ltd
Current assignee: Dongguan Huabei Electronic Technology Co Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-01-28
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses an angle stamping die and stamping equipment, wherein the sharp angle stamping die comprises an upper die provided with an upper die cavity and a lower die provided with a lower die cavity, a plurality of groups of stamping units are arranged in the upper die cavity, and each stamping unit comprises a first stamping sharp angle unit and a second stamping sharp angle unit which are connected in an abutting mode; an included angle area is formed between the first stamping sharp angle unit and the second stamping sharp angle unit, and a target included angle is formed in the included angle area. When characters with sharp corners are stamped on a workpiece, an included angle area is formed by splicing the first stamping sharp corner unit and the second stamping sharp corner unit, wherein the target included angle of the included angle area is matched with the sharp corners of the characters; according to the utility model, the target included angle is formed by splicing the first stamping sharp angle unit and the second stamping sharp angle unit, so that the technical problems that a V-shaped stamping head in the prior art is influenced by a processing process and the sharp angle is actually a round angle are solved, CNC (computer numerical control) processing is not required to be additionally used, and the manufacturing cost is greatly reduced.

Description

Closed angle stamping die and stamping equipment

Technical Field

The utility model relates to the technical field of stamping equipment, in particular to a sharp-corner stamping die and stamping equipment.

Background

The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size.

Wherein, stamping is commonly used for processing and forming characters on a workpiece; in the case of stamping characters, the situation that sharp corners need to be stamped frequently occurs, for example, when a V-shaped character is stamped, at least one sharp corner needs to be formed.

In the prior art, as shown in fig. 1, the formation of a sharp corner requires at least the following two steps: 1. stamping a preliminary sharp corner on the surface of a workpiece by a V-shaped stamping head, wherein the process is limited by the stamping head, and the sharp corner of the stamping head is actually a round corner, so that a margin is usually formed on one side of the sharp corner; 2. and removing allowance by using a CNC (computerized numerical control) machining mode to obtain the formed sharp-corner structure. Obviously, the stamping die for processing the sharp corner in the prior art needs additional CNC processing, so that the manufacturing cost is greatly increased, and a sharp corner stamping die is necessary to be researched, so that the manufacturing cost can be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sharp-corner stamping die and stamping equipment, which are used for solving the problem that the cost of stamping and forming characters with sharp corners is high at present.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a sharp corner stamping die comprises an upper die provided with an upper die cavity and a lower die provided with a lower die cavity, wherein a plurality of groups of stamping units are arranged in the upper die cavity, and each stamping unit comprises a first stamping sharp corner unit and a second stamping sharp corner unit which are abutted;

an included angle area is formed between the first stamping sharp angle unit and the second stamping sharp angle unit, and a target included angle is formed in the included angle area.

Optionally, a first splicing surface is formed on the first stamping sharp corner unit, and a second splicing surface is formed on the second stamping sharp corner unit;

the first splicing surface and the second splicing surface are in butt joint to form the included angle area, and the angle between the first splicing surface and the second splicing surface is equal to the target included angle.

Optionally, a butt joint splicing surface is further formed on the second stamping sharp corner unit, and the butt joint splicing surface abuts against the first splicing surface.

Optionally, a compensation bump is further convexly arranged on the wall surface of the lower die close to the upper die, and the compensation bump is located outside the lower die cavity;

the compensation bump is located between the first stamping sharp angle unit and the second stamping sharp angle unit.

Optionally, the compensation bump includes a compensation sharp corner, an angle of the compensation sharp corner matches with the target included angle, and a thickness of the compensation bump decreases from a direction away from the included angle region.

Optionally, a distance between the compensation sharp corner and the wall surface of the lower die is 0.1mm to 0.13 mm.

Optionally, a gap is left between the stamping unit and the cavity wall of the lower cavity.

A stamping apparatus comprising a pointed stamping die as described above.

Compared with the prior art, the utility model has the following beneficial effects:

according to the sharp corner stamping die and stamping equipment provided by the utility model, when stamping characters with sharp corners on a workpiece, an included angle area is formed by splicing the first stamping sharp corner unit and the second stamping sharp corner unit, wherein the target included angle of the included angle area is matched with the sharp corners of the characters; according to the utility model, the target included angle is formed by splicing the first stamping sharp angle unit and the second stamping sharp angle unit, so that the technical problems that a V-shaped stamping head in the prior art is influenced by a processing process and the sharp angle is actually a round angle are solved, CNC (computer numerical control) processing is not required to be additionally used, and the manufacturing cost is greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the utility model, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the utility model without affecting the effect and the achievable purpose of the utility model.

FIG. 1 is a schematic diagram of a process for machining a sharp corner in the prior art;

FIG. 2 is a schematic diagram of an exploded structure of a sharp corner stamping die according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a partial top view of a sharp corner stamping die according to an embodiment of the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 3 at A;

FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic view of the exploded structure of the first stamping horn unit and the second stamping horn unit in accordance with the embodiment of the present invention.

Illustration of the drawings: 1. an upper die; 2. a lower die; 21. a compensation bump; 211. compensating for sharp corners; 31. a first stamping sharp corner unit; 311. a first splicing surface; 32. a second stamping sharp corner unit; 321. a second splicing surface; 322. butt-jointed surfaces; 33. an angle region.

Detailed Description

In order to make the objects, features and advantages of the present invention more apparent and understandable, the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings, and it is to be understood that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Referring to fig. 2 to 6, fig. 2 is a schematic diagram illustrating an explosion structure of a sharp corner stamping die according to an embodiment of the present invention, fig. 3 is a schematic diagram illustrating a partial top view structure of the sharp corner stamping die according to the embodiment of the present invention, fig. 4 is a schematic diagram illustrating a partial enlarged structure of fig. 3 at a point a, fig. 5 is a schematic diagram illustrating a cross-sectional structure of fig. 3 along a point B-B, and fig. 6 is a schematic diagram illustrating an explosion structure of a first stamping sharp corner unit and a second stamping sharp corner unit according to the embodiment of the present invention.

Example one

The sharp-corner stamping die provided by the embodiment is applied to a scene of processing a character with a sharp corner, for example, a scene of processing and forming a character with a sharp corner such as a "V", "W", "Z" shape on a workpiece.

As shown in fig. 2 to 4, the sharp-corner stamping die in the present embodiment includes an upper die 1 configured with an upper die cavity and a lower die 2 configured with a lower die cavity, wherein a plurality of sets of stamping units are arranged in the upper die cavity, and each stamping unit includes a first stamping sharp-corner unit 31 and a second stamping sharp-corner unit 32 which are in contact with each other.

An included angle region 33 is formed between the first pressing horn unit 31 and the second pressing horn unit 32, and the included angle region 33 is formed with a target included angle. Herein, as shown in fig. 4, the included angle region 33 refers to a hatched region in fig. 4, more specifically, a region left between the first pressing horn unit 31 and the second pressing horn unit 32. And the target included angle means that the shadow area must have an included angle matched with the sharp corner of the character.

Specifically, when characters with sharp corners are stamped on a workpiece, an included angle area 33 is formed by splicing a first stamping sharp corner unit 31 and a second stamping sharp corner unit 32, wherein the target included angle of the included angle area 33 is matched with the sharp corners of the characters; according to the utility model, the target included angle is formed by splicing the first stamping sharp angle unit 31 and the second stamping sharp angle unit 32, so that the technical problems that the V-shaped stamping head is influenced by a processing process and the sharp angle is actually a round angle in the prior art are solved, CNC (computer numerical control) processing is not required to be additionally used, and the manufacturing cost is greatly reduced.

Further, as shown in FIG. 6, a first splicing surface 311 is formed on the first stamping sharp corner unit 31, and a second splicing surface 321 is formed on the second stamping sharp corner unit 32.

The first splicing surface 311 and the second splicing surface 321 are butted to form an included angle area 33, and the angle between the first splicing surface 311 and the second splicing surface 321 is equal to the target included angle.

Specifically, when a character with a sharp corner is stamped, an included angle area 33 is formed between the first splicing surface 311 and the second splicing surface 321 by splicing the first stamping sharp corner unit 31 and the second stamping sharp corner unit 32, wherein an angle between the first splicing surface 311 and the second splicing surface 321 is equal to a target included angle, namely is matched with the sharp corner of the character; the technical problems that a V-shaped stamping head in the prior art is influenced by a machining process and a sharp corner is actually a round corner are solved, CNC machining is not needed to be additionally used, and the manufacturing cost is greatly reduced.

Further, a butt joint surface 322 is formed on the second stamping sharp corner unit 32, and the butt joint surface 322 abuts against the first joint surface 311.

Wherein, through forming butt joint concatenation face 322 on second punching press closed angle unit 32 for when second punching press closed angle unit 32 splices with first punching press closed angle unit 31, both can be inconsistent through the face contact, have improved the counterpoint precision between first punching press closed angle unit 31 and the second punching press closed angle unit 32.

Further, as shown in fig. 3 and 5, a wall surface of the lower mold 2 close to the upper mold 1 is further provided with a compensation protrusion 21 in a protruding manner, and the compensation protrusion 21 is located outside the lower mold cavity, that is, the compensation protrusion 21 is not provided on the wall surface of the lower mold cavity. The compensation projection 21 is located between the first pressing horn unit 31 and the second pressing horn unit 32. When stamping sharp corners of characters, the part of the workpiece in the angle region 33 flows under pressure, so that the part of the workpiece in the angle region 33 is sunken downwards. Therefore, the displacement amount of the workpiece sinking downward can be reduced by the compensation bump 21, and the character accuracy of the workpiece is improved.

Further, the compensation bump 21 includes a compensation sharp corner 211, an angle of the compensation sharp corner 211 matches the target included angle, and a thickness of the compensation bump 21 decreases from a direction away from the included angle region 33. The arrangement can enable the finally formed character to be flat and smooth as a whole, and the appearance requirement of a workpiece is met.

Specifically, the interval between the compensation sharp corner portion 211 and the wall surface of the lower die 2 is 0.1mm to 0.13 mm.

Specifically, a gap is left between the stamping unit and the cavity wall of the lower die cavity.

The above structure describes a scenario where the pointed stamping die is applied to stamping a "V" shaped character, and obviously, by increasing the number of stamping units, processing of multi-pointed characters, such as "W" shaped characters, can be realized.

In conclusion, the sharp-corner stamping die provided by the embodiment reduces the process of stamping characters with sharp corners, further reduces the cost, and has the advantages of attractive appearance, high alignment precision, dent resistance and the like.

Example two

The embodiment provides stamping equipment comprising the sharp-angled stamping die in the first embodiment. The first embodiment describes a specific structure and technical effects of a sharp-corner stamping die, and the stamping device of the first embodiment uses the structure and has the technical effects as well.

When a workpiece needs to be punched, the workpiece is placed on the lower die 2, then the punching end of the punching device is driven to move, the punching end drives the upper die 1 to close the lower die 2, and the V-shaped character with the sharp angle is directly machined and formed on the workpiece through the first punching sharp angle unit 31 and the second punching sharp angle unit 32.

In conclusion, the stamping equipment provided by the embodiment reduces the process of stamping characters with sharp corners, further reduces the cost, and has the advantages of attractive appearance, high alignment precision, dent resistance and the like.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A sharp corner stamping die is characterized by comprising an upper die (1) provided with an upper die cavity and a lower die (2) provided with a lower die cavity, wherein a plurality of groups of stamping units are arranged in the upper die cavity, and each stamping unit comprises a first stamping sharp corner unit (31) and a second stamping sharp corner unit (32) which are in butt joint;

an included angle area (33) is formed between the first stamping sharp angle unit (31) and the second stamping sharp angle unit (32), and a target included angle is formed in the included angle area (33).

2. A pointed stamping die according to claim 1, characterized in that said first stamping pointed element (31) is formed with a first splicing surface (311) and said second stamping pointed element (32) is formed with a second splicing surface (321);

the first splicing surface (311) and the second splicing surface (321) are butted to form the included angle area (33), and the angle between the first splicing surface (311) and the second splicing surface (321) is equal to the target included angle.

3. A pointed stamping die according to claim 2, wherein said second stamping pointed element (32) is further formed with a butt-joint surface (322), said butt-joint surface (322) abutting said first joint surface (311).

4. The sharp corner stamping die according to claim 1, wherein the wall surface of the lower die (2) close to the upper die (1) is further provided with a compensation bump (21) in a protruding manner, and the compensation bump (21) is positioned outside the lower die cavity;

the compensation projection (21) is located between the first stamping horn element (31) and the second stamping horn element (32).

5. A pointed stamping die according to claim 4, wherein said compensation bump (21) comprises a compensation pointed portion (211), the angle of said compensation pointed portion (211) matching said target included angle, and the thickness of said compensation bump (21) decreasing from a direction away from said included angle region (33).

6. A pointed stamping die according to claim 5, characterised in that the spacing between the compensating pointed portion (211) and the wall surface of the lower die (2) is 0.1mm to 0.13 mm.

7. The pointed stamping die of claim 1, wherein a gap is left between the stamping unit and the cavity wall of the lower die cavity.

8. A stamping apparatus comprising a pointed stamping die as claimed in any of claims 1 to 7.