Aluminum alloy drain hole punching die

Abstract

The utility model discloses an aluminum alloy drain hole punching die which comprises a bottom die and a punching die which are oppositely arranged, the bottom die is provided with a containing groove used for containing an aluminum alloy profile, the punching die is provided with a punch, the punch is arranged on the side wall of the punching die so as to be synchronously ejected out along with the punching die, and the punch comprises a connecting part and a cutting edge part. The blade part is arranged on the ejection side, facing the to-be-punched area of the aluminum alloy profile, of the connecting part. The punch can extend into the position between the upper cantilever rib and the lower cantilever rib of the aluminum alloy profile, then the punch die drives the punch to eject out, and therefore a drainage hole can be punched in the cantilever rib located on the ejection side. Compared with the prior art, the upper cantilever rib and the lower cantilever rib of the aluminum alloy profile can be independently punched in batches, and the situation that the profile deforms due to the fact that the punching amount is too large is not prone to occurring.

Description

A type of aluminum alloy drainage hole punching die Technical Field

[0001] This utility model relates to the field of aluminum alloy profile punching technology, and in particular, to an aluminum alloy drainage hole punching mold. Background Technology

[0002] Thermally broken aluminum casement windows are energy-saving doors and windows that utilize thermal break technology. The core of this technology involves embedding a PA66 nylon thermal break strip within the aluminum alloy profile, separating the indoor and outdoor aluminum materials and effectively blocking heat conduction, thus providing excellent thermal insulation and sound insulation performance. Through multi-point locking and sealing strips, the window sash and frame are tightly connected, ensuring excellent airtightness and watertightness, making it a common choice for modern homes.

[0003] The aluminum alloy profile for punching drainage holes in a thermally broken aluminum casement window, as shown in Figure 1, uses the upper and lower molds to punch drainage holes on the upper and lower cantilever ribs of the profile in one go. Although this method is convenient and quick, it is easy to cause impact deformation of the profile. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an aluminum alloy drainage hole punching mold.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A punching die for aluminum alloy drainage holes includes a bottom die and a punch die arranged opposite to each other. The bottom die is provided with a placement groove for accommodating aluminum alloy profiles. The punch die is provided with a punch head, which is disposed on the side wall of the punch die to eject synchronously with the punch die. The punch head includes a connecting part and a cutting edge part. The cutting edge part is disposed on the ejection side of the connecting part facing the area to be punched on the aluminum alloy profile.

[0007] Preferably, the die includes a stamping seat and a striking seat arranged opposite to each other. The stamping seat is elastically mounted on the bottom die by an elastic element. The striking seat is adapted to be ejected under the drive of a driving device and push the stamping seat out. The punch is disposed on the side wall of the striking seat.

[0008] Preferably, the placement groove is located at the top corner of the bottom mold, and the placement groove is connected to the end face and side face of the bottom mold. A clearance groove opposite to the punch is provided on the end face of the placement groove.

[0009] Preferably, the clearance groove is a through groove.

[0010] Preferably, the clearance groove is connected to the side of the bottom mold.

[0011] Preferably, a pad is movably provided at the opening of the recess, and the pad is adapted to extend into the recess to varying degrees.

[0012] Preferably, the end face of the pad is flush with the end face of the placement groove.

[0013] Preferably, a plurality of locking posts are arranged in an array on the end face of the placement groove along the direction close to the avoidance groove, and a plurality of locking holes are correspondingly provided on the pad.

[0014] Preferably, two pads are symmetrically arranged.

[0015] The beneficial effects of this invention are: the punch can extend between the upper and lower cantilever ribs of the aluminum alloy profile, and then the die drives the punch to eject, thereby punching a drainage hole on the cantilever rib located on the ejection side. Compared with the prior art, this invention enables the upper and lower cantilever ribs of the aluminum alloy profile to be punched separately and in stages, and is less likely to cause deformation of the profile due to excessive stamping. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of a single-punch double-hole mold;

[0017] Figure 2 is a structural schematic diagram of the embodiment with the bottom mold and punch mold separated;

[0018] Figure 3 is a schematic diagram of the closed state of the bottom mold and punch in the embodiment;

[0019] Figure 4 is a schematic diagram of the pad block structure;

[0020] Figure 5 is a schematic diagram of an example of a drainage hole punched out of the blade.

[0021] Reference numerals in the attached drawings: 1. Bottom mold; 2. Punch; 3. Placement slot; 4. Punch; 5. Connecting part; 6. Cutting edge; 7. Stamping seat; 8. Strike seat; 9. Elastic element; 10. Alternating groove; 11. Pad block; 12. Locking post; 13. Locking hole; 14. Base; 15. Connecting seat; 16. Bearing seat. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. 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.

[0023] Referring to Figures 2 to 4, an aluminum alloy drainage hole punching die includes a bottom die 1 and a punch 2 arranged opposite to each other. For example, the bottom die 1 can be arranged below the punch 2, and the punch 2 can drive the punch 4 to push out to one side of the bottom die 1, thereby punching out the required drainage hole on the aluminum alloy profile placed in the placement groove 3 of the bottom die 1.

[0024] The punch 4 is specifically located on the side wall of the die 2. The aluminum alloy profile can be inserted into the placement slot 3 by lateral insertion, thereby allowing the punch 4 to extend between the upper and lower cantilever ribs of the aluminum alloy profile. For example, the drainage hole on the upper cantilever rib can be punched using the die shown in Figure 1. The drainage hole on the lower cantilever rib can be punched by the punch 4 disclosed herein. This separate punching method greatly reduces the amount of stamping in a single punching operation, making the aluminum alloy profile less prone to deformation.

[0025] Specifically, the die 2 may include a stamping seat 7 and an impact seat 8 arranged opposite each other. The stamping seat 7 is spring-loaded on the top of the bottom die 1 by an elastic member 9, while the impact seat 8 is disposed on the actuating end of a drive device (not shown). The drive device may be an ejector block in the form of a cylinder, hydraulic cylinder, or crank mechanism. When the drive device drives the impact seat 8 to eject, the impact seat 8 pushes the stamping seat 7 to spring and eject. Subsequently, the punch 4 located on the side wall of the stamping seat 7 can punch holes in the profile.

[0026] The punch 4 specifically includes a connecting part 5 and a cutting edge 6. As shown in Figure 2, the cutting edge 6 is located below the connecting part 5, that is, the cutting edge 6 faces the cantilever rib located below. In this case, the area below the connecting part 5 can be defined as the ejector side. It is understood that the arrangement of the die 2 and the bottom die 1 is not limited in this disclosure. In possible examples, they may also be arranged side by side, and the ejector side of the connecting part 5 only needs to be able to allow the punch 4 to extend into the two cantilever ribs and face the side of the unpunched cantilever rib (i.e., the area to be punched in the aluminum alloy profile).

[0027] Depending on the design shape of the drainage hole, the cutting edge 6 can be formed into a rectangle. Figure 5 shows an example of a drainage hole punched using the rectangular cutting edge 6. As can be seen from the figure, the edges of the drainage hole are neat and aesthetically pleasing, and the aluminum alloy profile does not deform.

[0028] The bottom mold 1 may specifically include a base 14, a connecting seat 15, and a bearing seat 16 stacked in sequence, which can be fixed together by bolts. A connecting bolt for connecting the stamping seat 7 can extend upward from the connecting seat 15, and a spring can be sleeved on the connecting bolt and abut against the top surface of the connecting seat 15. The spring pushes the stamping seat 7 to tend to be held in the initial position above.

[0029] The aforementioned placement groove 3 is located at the top corner of the support base 16, and the placement groove 3 is connected to the top surface and side wall of the support base 16, so that the cantilever rib located below can be placed into the placement groove 3, for example, in the direction from left to right as shown in Figure 2. Figures 2 and 3 show the clearance groove 10 on the end face of the placement groove 3 in the form of dashed lines. It can be understood that the clearance groove 10 is opposite to the punch 4 located above, so that when the punch 4 pushes out for stamping, it can pass through the cantilever rib and extend into the clearance groove 10.

[0030] For example, the clearance groove 10 can be a through groove, and it is also connected to the side of the support 16, which makes the clearance groove 10 easier to machine. This is because this open structure makes it easier for the machine tool's cutting tool to enter the area to be machined in the support 16 and complete the machining.

[0031] In other configurations, the stamping seat 7 can also be directly connected to the striking seat 8. That is, the punch 2 of this invention can be an integral upper die structure as shown in Figure 1, in which the upper die directly drives the punch 4 to punch the cantilever ribs. However, it is understandable that the combination of the stamping seat 7 and the striking seat 8 greatly reduces the requirements for the ejection stroke accuracy of the drive device.

[0032] Referring to Figure 4, in some embodiments, a pad 11 is also provided at the opening of the relief groove 10, and the pad 11 is movable, so that the degree of insertion of the pad 11 into the relief groove 10 can be adjusted and changed. During the stamping operation, the pad 11 can be attached to and supported on the bottom surface of the cantilever rib located below, and the opening size of the relief groove 10 can be adjusted according to the size of the punch 4. For example, when the size of the punch 4 is reduced, the pad 11 can be adjusted to extend further into the relief groove 10, so that the pad 11 can provide maximum support for the periphery of the drainage hole position to be punched on the cantilever rib, thereby further preventing the aluminum alloy profile from being deformed during stamping.

[0033] For example, two pads 11 can be symmetrically arranged to avoid the misalignment of the relief groove 10 and the punch 4. Each pad 11 can be embedded so that its end face is flush with the end face of the placement groove 3, so that the cantilever bar is not prone to tilting or swaying when supported in the placement groove 3.

[0034] In a specific example, a number of locking posts 12 can be arrayed on the end face of the placement slot 3, and along the array direction, the locking posts 12 will get closer and closer to the clearance slot 10. The pad block 11 can be provided with locking holes 13, and there are also a number of locking holes 13 corresponding to a number of locking posts 12. Thus, the degree to which the pad block 11 extends into the clearance slot 10 can be changed by locking the locking holes 13 into the locking posts 12 at different positions.

[0035] Alternatively, the retaining post 12 can be replaced with a threaded hole (not shown), and a fastening bolt (not shown) can be installed on the pad 11 to position the pad 11 at different threaded holes.

[0036] In addition, in the field of punching, there are various ways to fix the profile when it is punched. For example, it can be held by hand or a fixing seat can be set on the base to fix the bottom of the profile. This is something that those skilled in the art should know and understand, and will not be elaborated here.

[0037] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A punching die for aluminum alloy drainage holes, comprising a bottom die (1) and a punch (2) disposed opposite to each other, wherein the bottom die (1) is provided with a placement groove (3) for accommodating aluminum alloy profiles, and the punch (2) is provided with a punch (4), characterized in that: The punch (4) is disposed on the side wall of the die (2) to eject synchronously with the die (2). The punch (4) includes a connecting part (5) and a cutting edge (6). The cutting edge (6) is disposed on the ejection side of the connecting part (5) facing the area to be punched of the aluminum alloy profile.

2. The aluminum alloy drainage hole punching die according to claim 1, characterized in that: The die (2) includes a stamping seat (7) and a striking seat (8) arranged opposite to each other. The stamping seat (7) is springily mounted on the bottom die (1) by an elastic element (9). The striking seat (8) is adapted to be ejected and push the stamping seat (7) out under the drive of the driving device. The punch (4) is disposed on the side wall of the striking seat (8).

3. The aluminum alloy drainage hole punching die according to claim 1, characterized in that: The placement groove (3) is located at the top corner of the bottom mold (1), and the placement groove (3) is connected to the end face and side face of the bottom mold (1). A clearance groove (10) opposite to the punch (4) is provided on the end face of the placement groove (3).

4. The aluminum alloy drainage hole punching die according to claim 3, characterized in that: The avoidance groove (10) is a through groove.

5. The aluminum alloy drainage hole punching die according to claim 3 or 4, characterized in that: The clearance groove (10) is connected to the side of the bottom mold (1).

6. The aluminum alloy drainage hole punching die according to claim 3, characterized in that: A pad (11) is movably provided at the opening of the recess (10), and the pad (11) is adapted to extend into the recess (10) to varying degrees.

7. The aluminum alloy drainage hole punching die according to claim 6, characterized in that: The end face of the pad (11) is flush with the end face of the placement groove (3).

8. The aluminum alloy drainage hole punching die according to claim 6 or 7, characterized in that: On the end face of the placement groove (3), a plurality of locking posts (12) are arranged in an array along the direction close to the avoidance groove (10), and a plurality of locking holes (13) are correspondingly provided on the pad (11).

9. The aluminum alloy drainage hole punching die according to claim 8, characterized in that: Two pads (11) are symmetrically arranged.

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