TWI594816B - Deep groove hollow aluminum tube stamping equipment - Google Patents

Description

Deep groove type hollow aluminum tube stamping forming equipment

The invention relates to a stamping forming device for a deep groove type hollow aluminum tube, in particular to a stamping forming device capable of forming an aluminum ingot into a deep groove type hollow aluminum tube at one time, and the device particularly comprises a movable lifting protection. The template is used to protect the punch from bending deformation during the stamping process.

Conventional hollow aluminum cylinder stamping must pass a lot of stamping work, as shown in the first figure, which is an aluminum sheet 10 first stamped to present an initial curved body 101, and then through the majority of the stamping process The aluminum plate bending body 101 is gradually punched from the wider diameter aluminum cylinder prototypes 102, 103, 104 to the aluminum cylinder product 105 of a predetermined desired diameter. In other words, according to the above-mentioned conventional press forming technology, it is necessary to advance Various punches of different specifications are arranged for punching in multiple stages. Therefore, the manufacturing process or the whole process is very complicated and inconvenient, which is quite time-consuming and laborious, is not suitable for mass production, and the operation cost is also high.

According to the existing stamping technology, since the aluminum ingot (aluminum material) is a metal material with good ductility and material fluidity, direct stamping of the aluminum ingot can also achieve the purpose of direct stamping, but in the stamping process, For hollow aluminum cylinders with a groove depth of more than 8 cm, it is necessary to use a longer type of punching punch. According to the applicant's practical experience, for more than 8 cm. A variety of hollow aluminum cylinders with different groove depth specifications, the matching punches should have various matching lengths (must exceed the length of the aluminum cylinder groove depth), and can be formed into hollow aluminum cylinders of various groove depths, but this is used in The punch of the deep-groove hollow aluminum cylinder will inevitably produce different degrees of bending deformation during the stamping process. Since the total length of the punch is too long, deformation will occur at the moment of punching, although the punch will automatically recover during the stamping return stroke. However, after the deep-groove hollow aluminum cylinder is formed by stamping, the same bending deformation occurs, and the deep-groove hollow aluminum cylinder after the bending deformation cannot be restored, so the deformed hollow aluminum cylinder cannot meet the practical demand. The common bottleneck encountered by direct stamping technology is known.

The main object of the present invention is to provide a deep groove type hollow aluminum cylinder stamping forming apparatus, which comprises an upper template, a lower template and a protection template, the upper template is mounted and combined with a punch, and the lower template is mounted and coupled. The forming template is disposed at a distance above the forming template and movable between the upper template and the lower template, and the protection template is provided with an opening through which the punch can be matched, and the forming template has a The accommodating groove of the aluminum ingot can be accommodated, and the accommodating groove matches the punching position of the corresponding punch. When the punch presses the aluminum ingot downward, the aluminum ingot will instantaneously flow the material, and the aluminum material will form a running material along the punch. And instantaneously forming into a hollow aluminum cylinder, the protection template is moved downward with the punch when punching, and is also synchronously risen in reverse to protect the punch from bending deformation, and ensure that the hollow aluminum cylinder is formed in one press. The bending deformation does not occur during the process, so the production is fast and suitable for mass production, and the quality of the hollow aluminum cylinder is ensured to be very stable, which meets practical needs.

A secondary object of the present invention is to provide a press forming apparatus for a deep groove type hollow aluminum cylinder, wherein the protection template is matched with a downward pressing of the punch by a driving device, and is synchronously driven in a reverse direction. During the stamping instant of the punch, the protection template remains at the same height position of the punch, so that the punch is excellently protected from bending deformation at all, and can be utilized after the hollow aluminum tube is stamped and formed. Protect the template and complete the rapid demoulding work.

Another object of the present invention is to provide a press forming apparatus for a deep-groove type hollow aluminum cylinder, wherein the driving device of the protective template is selected from a hydraulic driving device or a pneumatic driving device or an electric driving device.

A further object of the present invention is to provide a press forming apparatus for a deep groove type hollow aluminum cylinder, wherein the punching surface of the punch is smaller than the notch of the receiving groove provided in the forming template, and the punching surface of the punch is The gap formed by the groove of the receiving groove is equal to the wall thickness of the deep groove type hollow aluminum tube after press forming.

Conventional part:

10‧‧‧Aluminum plate

101‧‧‧Bending body

105‧‧‧Aluminium tube finished products

102, 103, 104‧‧‧ aluminum tube prototype

Part of the invention:

1‧‧‧Upper template

2‧‧‧Next template

3, 3'‧‧‧protection template

31, 31’‧‧‧ openings

4, 4’‧‧‧ punches

41‧‧‧ Stamping surface

5‧‧‧Forming template

51‧‧‧ accommodating slots

6‧‧‧Aluminum ingot

7‧‧‧ drive

G‧‧‧ gap

20‧‧‧Hollow aluminum cylinder

32’‧‧‧ class bumps

The first figure is a schematic view of a state in which a conventional hollow aluminum cylinder passes through a majority of press forming processes.

The second figure is a schematic diagram showing the state in which the upper and lower templates are separated.

The third figure is a schematic diagram of the cross-sectional state of the second figure.

The fourth figure is a combined state diagram of the press forming apparatus of the present invention.

The fifth figure is a schematic view of the action of starting the stamping at the beginning of the present invention.

The sixth figure shows that the protection template of the present invention is driven by synchronous reverse rising. Action diagram.

The seventh figure shows the action diagram of the protection template of the present invention rising to the limit.

The eighth figure shows a state in which the protection template and the punch move synchronously in the opposite direction when the punch moves.

The ninth figure is a schematic view showing a state in which the protection template of the present invention is reversely raised to the limit.

The tenth figure shows a perspective view of the finished hollow aluminum cylinder after being stamped and trimmed by the present invention.

Fig. 11 is an enlarged schematic view showing the relative position of the punch and the aluminum ingot accommodating groove of the present invention.

Fig. 12 is a view showing another embodiment of the present invention in which a class bump is added around the opening of the protective template.

The structural features and other functions and objects of the present invention will be described in detail below with reference to the accompanying drawings. As shown in the second to fifth embodiments, the present invention is a "stitching apparatus for deep-groove hollow aluminum cylinders", which includes a The upper template 1, the lower template 2 and a protective template 3, wherein: the upper template 1 is attached to a punch 4; the lower template 2 is mounted and combined with a forming template 5, the forming template 5 is provided with an aluminum ingot a receiving groove 51 of 6 and matching the punching position corresponding to the punch 4; the protection template 3 is disposed at a distance above the forming template 5, and The movable template 3 is movable between the upper template 1 and the lower template 2, and the protection template 3 is provided with an opening 31 through which the punch 4 can be matched; when the upper template 1 is used, the punch 4 is punched downward. When the aluminum ingot 6 (as shown in the fifth figure), the aluminum ingot 6 will generate an instantaneous material flow, and an instantaneous running material will be formed along the punch 4, and the protective template 3 will move downward with the punch 4 during the punching. Also synchronized in the reverse rise (as shown in Figures 6 to 9), to protect the punch 4 from bending and deformation, and instantaneously obtain a stamped hollow aluminum cylinder 20 (as shown in the tenth figure), due to stamping During the process, the punch 4 is protected by the relative movement of the body of the protective template 3, so that the punch 4 will never undergo bending deformation, thereby ensuring that the hollow aluminum cylinder 20 will not undergo bending deformation during one press forming. Because of its rapid production, it is very suitable for mass production, and can ensure the quality of the hollow aluminum cylinder 20 is stable and will not be deformed.

After the stamping is completed (as shown in the ninth figure), the above-mentioned protective template 3 can be quickly demolded in conjunction with the lower template 2, and then the burrs or irregular concave and convex extension surfaces appearing in the opening of the hollow aluminum cylinder are appropriately trimmed or The cutting is performed to flatten the aluminum cylinder opening to complete the finished hollow aluminum cylinder 20 as shown in the tenth figure.

As shown in the enlarged view of the eleventh figure, the receiving groove 51 of the forming template 5 is exclusively for an aluminum ingot 6, and the punching surface 41 of the punch 4 must be smaller than the notch size of the receiving groove 51, so that the punching The punching surface 41 of the head 4 and the receiving groove 51 have a slight gap G, and the gap G is equal to the wall thickness of the deep groove type hollow aluminum cylinder 20 after press forming, so the wall of the hollow aluminum cylinder 20 The thickness is determined by the size of the gap G.

The protection template 3 described above is passed through a driving device 7 The downward punching of the punch 4 is synchronously driven in a reverse direction, so that the protection template 3 is matched with the punch 4 through the opening 31 during the punching instant, so that the punch 4 can be kept at the punch 4 at all times. The same height position, so that the punch 4 can obtain excellent support protection, no bending deformation occurs at all, and after the hollow aluminum cylinder 20 is press-formed, the protective template 3 can also be used to complete the rapid demolding.

The above-mentioned driving device 7 can be used for synchronously driving the protection template 3, and the driving device 7 can be selected from a hydraulic driving device or a pneumatic driving device or an electric driving device without limitation.

The punching groove 4 of the present invention and the receiving groove 51 of the forming die plate 5 are in a matching shape, and are not particularly limited, that is, the deep groove type hollow aluminum cylinder realized by the present invention is a visible punch 4 The shape of the matching groove 51 can be changed into a hollow aluminum cylinder of various shapes, and the rectangular hollow aluminum cylinder 20 disclosed in the embodiment can be formed by stamping, for example, circular or rectangular or polygonal or other. Any hollow aluminum cylinder of regular or irregular shape.

The punch 4 used in the present invention should have various matching lengths for the hollow aluminum cylinders of various groove depth specifications, but the total length of the punch 4 must exceed the length of the aluminum cylinder groove, and the stamping can be started. Forming hollow aluminum cylinders of various groove depths; however, for the hollow aluminum cylinders of deeper grooves, as shown in another embodiment of Fig. 12, the total length of the punch 4' used for matching is longer, so The protective template 3' may also form a class of bumps 32' around the opening 31', and a deeper opening 31' may be formed by the class bumps 32' so that the punch 4' is penetrated. Form better support protection and thus more effective The bending of the punch 4' which is likely to occur during the stamping process is prevented, ensuring that the longer punch 4' is never deformed.

The aluminum ingot 6 used in the present invention adopts a fixed amount of aluminum material, and is disposed in the receiving groove 51 of the forming template 5, and after being punched by the punch 4, it can be formed into a hollow aluminum cylinder 20 at one time because The material of the aluminum ingot 6 is quantitatively calculated. In the stamping process, in addition to trimming or cutting the burrs of the aluminum cylinder opening or a little residual material, no excessive waste is generated, so the implementation of the present invention also contributes to the reduction of the material. Cost of consumption, and convenient material management.

The above embodiments are merely illustrative of the main techniques of the present invention, and are not intended to limit the embodiments of the present invention. Any simple change or increase or decrease based on the equivalent application or the same technical means should be considered as The technical characteristics of the case.

In summary, according to the creation of the deep groove type hollow aluminum cylinder stamping equipment, especially for the protection of the template and the punch for the synchronous matching of the reverse rise of the application, it can indeed be an instant stamping into a good quality The hollow aluminum tube, so the stamping and molding equipment has been novel and progressive, can obtain the expected practical effect, apply for a patent for this, and pray for patents according to law, it is a virtue.

1‧‧‧Upper template

2‧‧‧Next template

3‧‧‧Protection template

31‧‧‧ Opening

4‧‧‧ Punch

5‧‧‧Forming template

51‧‧‧ accommodating slots

6‧‧‧Aluminum ingot

7‧‧‧ drive

Claims (9)

The utility model relates to a stamping and forming device for a deep groove type hollow aluminum cylinder, which mainly comprises an upper template, a lower template and a protection template, wherein the upper template is mounted and combined with a punch; the lower template is mounted and combined with a molding template. The forming template is provided with a receiving groove for accommodating the aluminum ingot, and the receiving groove is matched with the punching position corresponding to the punch; the protection template is disposed at a distance above the forming template and between the upper template and the lower template The movable lifting and lowering, the protection template is provided with an opening through which the punch can be matched; by using the above-mentioned stamping and forming equipment, when the upper template drives the punch to punch down the aluminum ingot, the aluminum ingot will generate an instantaneous material flow, and along the The punch forms an instant running material, and the protective template is moved downwards as the punch moves downward, and also rises in the opposite direction synchronously, and a hollow aluminum cylinder which is stamped and formed is instantaneously obtained. The stamping forming apparatus of the deep-groove hollow aluminum cylinder according to the first aspect of the patent application, the punching surface of the punch is slightly smaller than the notch size of the forming template receiving groove, so that the punching surface of the punch and the receiving groove are Has a slight gap. The stamping and forming apparatus of the deep-groove type hollow aluminum cylinder according to claim 1, wherein the protection template is driven synchronously by a driving device in a reverse direction. A press forming apparatus for a deep groove type hollow aluminum cylinder according to claim 3, wherein the driving device is a hydraulic driving device. A press forming apparatus for a deep groove type hollow aluminum cylinder according to claim 3 of the patent application, wherein the driving device is a pneumatic driving device. A press forming apparatus for a deep groove type hollow aluminum cylinder according to claim 3, wherein the driving device is an electric driving device. The stamping and forming apparatus of the deep-groove type hollow aluminum cylinder according to the first aspect of the patent application, wherein the punching groove and the receiving groove of the forming template are in a matching shape. The stamping and forming apparatus of the deep groove type hollow aluminum cylinder according to claim 1, wherein the protection template forms a class of bumps around the opening. For example, in the stamping and forming apparatus of the deep-groove type hollow aluminum cylinder according to the first aspect of the patent application, the aluminum ingot adopts a fixed-quantity aluminum material, and is suitably disposed in the receiving groove of the forming template.