Punch mechanism for aluminum profile

Abstract

The utility model discloses a punch mechanism for an aluminum profile. The punch mechanism comprises an annular groove punch, a movable groove, a punch connecting base, a punch fixing base, a punching limiting plug, a limiting plug connecting block, a material pressing face and a nitrogen spring. By means of the mode, according to the punch mechanism for the aluminum profile, step-by-step punching operation is carried out through cooperation of the annular groove punch, the punching limiting plug, the material pressing face and the spring, the punching characteristics and requirements of the aluminum profile are met, the punching accuracy and stability are effectively improved, and therefore the yield of products and the working efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and in particular to a punch mechanism for aluminum profiles. Background Technology

[0002] In recent years, with the continuous development of science and technology, aluminum profiles have been widely used in the automotive industry due to their lightweight, high strength, corrosion resistance, environmental friendliness, recyclability, and good processing performance.

[0003] However, if existing punching mechanisms are used to punch aluminum profiles, especially when punching deep grooves (e.g., punching a 3.3mm deep groove on a 4.5mm profile) or punching multiple locations in close proximity, some material will be squeezed into the already punched holes or grooves due to the good fluidity of aluminum profiles. This makes it impossible to accurately control the punching precision, resulting in defective products or even scrap. Therefore, it is necessary to improve the punching mechanism. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A punch mechanism for aluminum profiles is provided, comprising: an annular groove punch, a movable groove, a punch connecting seat, a punch fixing seat, a punching limit plug, a limit plug connecting block, a pressure surface, and an elastic element.

[0006] The punch fixing seat is disposed on the outer periphery of the upper part of the punch connecting seat to connect with the upper module in the stamping mechanism. The bottom of the punch connecting seat is provided with the annular groove punch. The movable groove is axially disposed inside the punch connecting seat. The top of the limiting plug connecting block is connected with the elastic element to connect with the upper module through the elastic element. The limiting plug connecting block is movably connected with the movable groove, and its lower part extends to the outside of the punch connecting seat and the annular groove punch. The bottom of the limiting plug connecting block is provided with the pressing surface to press the material strip between adjacent punches, between the inner side of the annular groove and the punch, and the outer side of the annular groove. The pressing surface is provided with the punch limiting plug for positioning the punches on the material strip and restricting the material flow. There is a gap between the punch limiting plug and the punch, and the gap between the punch limiting plug near the annular groove and the punch is smaller than the gap between the punch limiting plug away from the annular groove and the punch to ensure the consistency of the annular groove.

[0007] In a preferred embodiment of this utility model, the punch fixing seat is detachably connected to the upper module.

[0008] In a preferred embodiment of this utility model, the punch fixing seat and the punch connecting seat are an integral structure, and the annular groove punch and the punch connecting seat are detachably connected.

[0009] In a preferred embodiment of this utility model, the elastic element is a nitrogen spring.

[0010] In a preferred embodiment of this utility model, the annular groove punch is a hollow annular structure.

[0011] In a preferred embodiment of this utility model, two punched limiting plugs are provided on the pressing surface.

[0012] The beneficial effects of this utility model are: by using the ring groove punch, punching limit plug, pressure surface and spring to carry out step-by-step stamping operation, the stamping characteristics and requirements of aluminum profiles are met, the accuracy and stability of stamping are effectively improved, thereby improving the product yield and work efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0014] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the punch mechanism for aluminum profiles during mold opening.

[0015] Figure 2 This is a schematic diagram of the mold closing structure of a preferred embodiment of the punch mechanism for aluminum profiles according to this utility model. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Please see Figure 1-2 The embodiments of this utility model include:

[0018] A punch mechanism for aluminum profiles includes: a ring groove punch 1, a movable groove 2, a punch connecting seat 3, a punch fixing seat 4, a punching limit plug 5, a limit plug connecting block 6, a pressing surface 7, and a nitrogen spring 8.

[0019] The punch fixing seat is located on the outer periphery of the upper part of the punch connecting seat and is connected to the upper die (plate) in the stamping mechanism. The bottom of the punch connecting seat is provided with an annular groove punch, which punches out an annular groove on the strip under the drive of the upper die. The movable groove is axially connected in the punch connecting seat.

[0020] More preferably, the punch holder is detachably connected to the upper module, the punch holder and the punch connecting seat are an integral structure, and the annular groove punch is detachably connected to the punch connecting seat.

[0021] One end of the nitrogen spring is connected to the upper die (plate) in the stamping mechanism, and the other end is connected to the limiting plug connecting block. The limiting plug connecting block is movably connected to the movable groove. The lower part of the limiting plug connecting block extends to the outside of the punch connecting seat, and the bottom of the limiting plug connecting block is provided with a pressing surface that contacts the area to be stamped, so as to press the strip between adjacent punches, between the inner side of the annular groove and the punch, and the outer side of the annular groove, to prevent the strip from deforming during annular groove stamping, thereby improving the stamping accuracy and efficiency. The pressing surface is provided with punch limiting plugs for positioning the punches on the strip and restricting the material flow. There is a gap between the punch limiting plug and the punch, and the gap between the punch limiting plug near the annular groove and the punch is smaller than the gap between the punch limiting plug away from the annular groove and the punch, so that during stamping, the material can flow more evenly into the punches on the strip, thereby ensuring the consistency of the annular groove.

[0022] During mold closing, the punch mechanism moves downwards under the drive of the upper die assembly to approach the strip. The punching limit plug first inserts into the punch hole of the strip for limiting, and then the pressure surface contacts and presses against the front of the strip. As the upper die assembly continues to descend, the annular groove punch continues to descend and punch grooves in the strip. At this time, the punching limit plug and the limit plug connecting block move upwards under the action of the strip and the lower die assembly, compressing the nitrogen spring and causing the limit plug connecting block to retract into the movable groove. During mold opening, the annular groove punch, punch connecting seat, and punch fixing seat move upwards under the drive of the upper die assembly to disengage from the strip. The pressure surface and the punching limit plug continue to press against the strip under the action of the nitrogen spring. The upper die assembly continues to move upwards until the pressure surface and the punching limit plug disengage from the strip in sequence.

[0023] The beneficial effects of this utility model of a punch mechanism for aluminum profiles are: by using a ring groove punch, a punching limit plug, a pressure surface and a spring to perform step-by-step punching operations, it meets the stamping characteristics and requirements of aluminum profiles, effectively improves the accuracy and stability of stamping, and thus improves product yield and work efficiency.

[0024] By using a punch sleeve to strengthen and protect the punch body, the strength of the punch is improved and its service life is extended. Through the cooperation of the punch sleeve, punch clamp and punch pad, different punches can be selected or replaced according to different usage requirements, which improves the flexibility of the punch mechanism and also enables quick assembly and disassembly of the punch body. The structure is simple and easy to use.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A punching mechanism for aluminum profiles, characterized in that, include: Ring groove punch, movable groove, punch connecting seat, punch fixing seat, punching limit plug, limit plug connecting block, pressure surface, elastic element. The punch fixing seat is disposed on the outer periphery of the upper part of the punch connecting seat to connect with the upper module in the stamping mechanism. The bottom of the punch connecting seat is provided with the annular groove punch. The movable groove is axially disposed inside the punch connecting seat. The top of the limiting plug connecting block is connected with the elastic element to connect with the upper module through the elastic element. The limiting plug connecting block is movably connected with the movable groove, and its lower part extends to the outside of the punch connecting seat and the annular groove punch. The bottom of the limiting plug connecting block is provided with the pressing surface to press the material strip between adjacent punches, between the inner side of the annular groove and the punch, and the outer side of the annular groove. The pressing surface is provided with the punch limiting plug for positioning the punches on the material strip and restricting the material flow. There is a gap between the punch limiting plug and the punch, and the gap between the punch limiting plug near the annular groove and the punch is smaller than the gap between the punch limiting plug away from the annular groove and the punch to ensure the consistency of the annular groove.

2. The punching mechanism for aluminum profiles according to claim 1, characterized in that, The punch holder is detachably connected to the upper module.

3. The punching mechanism for aluminum profiles according to claim 1, characterized in that, The punch fixing seat and the punch connecting seat are an integral structure, and the annular groove punch and the punch connecting seat are detachably connected.

4. A punching mechanism for aluminum profiles according to claim 1, characterized in that, The elastic element is a nitrogen spring.

5. A punching mechanism for aluminum profiles according to claim 1, characterized in that, The annular groove punch is a hollow annular structure.

6. A punching mechanism for aluminum profiles according to claim 1, characterized in that, Two perforated limit plugs are provided on the pressing surface.

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