Forming die of metal plate bending machine

Abstract

The utility model discloses a forming die of a metal plate bending machine, which belongs to the technical field of plate bending machines and comprises a lower die body and an upper die holder, a V-shaped groove is arranged at the top of the lower die body, a plurality of inserting grooves are arranged on the front side of the bottom end of the upper die holder, and a plurality of extrusion grooves are arranged on the front side of the upper die holder. According to the utility model, when a conventional plate needs to be bent, the plurality of upper forming dies are directly moved downwards to extrude, bend and form the plate, and when one or more reinforcing rib bulges are arranged on the plate, the lifting plate is pulled upwards to drive the bottom end of the bolt to be separated from the inner cavity of the insertion hole above the upper forming die; when a plate with a reinforcing rib protrusion is bent, fixation between the convex socket and the upper die base is removed, the upper forming die at the position corresponding to the reinforcing rib protrusion is directly detached from the lower portion of the upper die base, then the position of the reinforcing rib protrusion is avoided, and it is guaranteed that the plate with the reinforcing rib protrusion is bent smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of plate bending machines, and more specifically to a forming die of a metal plate bending machine. Background Art

[0002] The bending machine is an important equipment for bending and forming workpieces in the sheet metal industry. Its function is to press steel plates into parts of various shapes according to process requirements. Forming molds are required when bending the plates.

[0003] After searching, the utility model patent with publication number CN217726837U discloses a bending machine forming mold for processing bent parts with reinforcing ribs at the bending part, including an upper mold body and a lower mold body, the upper section of the upper mold body is provided with a rectangular snap fit for easy installation and fixation, the lower edge of the rectangular snap fit has a boss extending outward, the lower end of the upper mold body is provided with a V-shaped pressure head adapted to the bending angle, the upper end face of the lower mold body is provided with a V-shaped groove cooperating with the V-shaped pressure head of the upper mold body, a positioning baffle is provided on one side end face of the lower mold body, the positioning baffle is in contact with one end of the V-shaped groove, the V-shaped pressure head of the upper mold is provided with a reinforcing rib groove corresponding to the preset position of the reinforcing rib of the bent part to be processed, and the V-shaped groove of the lower mold body is provided with a reinforcing rib protrusion; the patent has a simple structure, low production cost and easy installation, and can realize the one-time processing and forming of reinforcing ribs at the same time as bending; it saves working procedures, reduces processing costs and improves production efficiency.

[0004] However, the aforementioned patent has the following drawbacks: the rib grooves on the upper die are fixed in position, allowing only customized production of parts with specific rib protrusions, increasing die development costs. Furthermore, the upper die is only suitable for forming parts with only one rib protrusion, limiting its use. To address this issue, we propose a forming die for a sheet metal bending machine. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a forming die for a metal sheet bending machine.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A forming die for a metal sheet bending machine comprises a lower die body and an upper die base, the top of the lower die body is provided with a V-shaped groove, the front of the bottom end of the upper die base is provided with multiple insertion grooves, the front of the upper die base is provided with multiple extrusion grooves, and through grooves are respectively provided between the extrusion grooves and the insertion grooves. The inner cavities of the insertion grooves are respectively provided with convex sockets, the bottom ends of the convex sockets extend to the bottom of the upper die base and are fixedly connected to the upper forming die, the bottom end of the upper forming die is provided with a V-shaped pressure head, and two adjacent upper forming dies are fitted with each other. The top surface of the convex socket is provided with a socket, the top of the inner cavity of the extrusion groove is fixedly connected to a spring, the bottom end of the spring is fixedly connected to a lifting plate, the bottom surface of the lifting plate is fixedly connected to a pin, and the bottom end of the pin passes through the through groove and extends to the inner cavity of the socket.

[0008] As a preferred solution of the present invention, a first scale is provided on the front of the lower mold body, and a second scale is provided on the front of the upper mold base.

[0009] As a preferred solution of the present invention, a limit plate is provided at one end of the lower mold body, a fastening bolt is sleeved on the limit plate, and the end of the fastening bolt is threadedly installed into the interior of the lower mold body.

[0010] As a preferred solution of the present invention, the front side of the upper forming die is provided with a hand-grip groove.

[0011] As a preferred solution of the present invention, the inner wall of the insertion groove fits in with the side surface of the convex socket, and the top surface of the upper forming die fits in with the bottom surface of the upper die base.

[0012] As a preferred solution of the present invention, the outer diameter of the pin is equal to the inner diameter of the insertion hole and the through slot.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] In the utility model, multiple upper forming dies are detachably installed at the bottom of the upper die base through the cooperation of the insertion groove, the convex socket, the spring, the lifting plate, the pin and the socket. When it is necessary to bend a conventional plate, the multiple upper forming dies are directly moved downward to extrude and bend the plate. When there are one or more reinforcing rib protrusions on the plate, the lifting plate is pulled upward to drive the bottom end of the pin to disengage from the inner cavity of the socket above the upper forming die, and the fixation between the convex socket and the upper die base is released. The upper forming die at the position corresponding to the reinforcing rib protrusion is directly removed from the bottom of the upper die base, and the position of the reinforcing rib protrusion is avoided, thereby ensuring that the plate with the reinforcing rib protrusion is smoothly bent and will not be limited by the position of the reinforcing rib protrusion, thereby reducing the cost of mold development. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the lower mold body of the utility model;

[0017] Figure 3 This is a schematic diagram of the split upper die base and upper forming die of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the upper die base of the utility model;

[0019] Figure 5 This is a structural diagram of the lifting plate of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the upper forming die of the present utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Lower die body; 2. Upper die base; 3. V-shaped groove; 4. Extrusion groove; 5. Insertion groove; 6. Through groove; 7. Convex socket; 8. Upper forming die; 9. V-shaped pressure head; 10. Socket; 11. Spring; 12. Lifting plate; 13. Latch; 14. Second scale; 15. First scale; 16. Hand grip groove; 17. Limit plate; 18. Fastening bolt. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Example:

[0027] See also Figure 1-6 , a metal sheet bending machine forming mold, including a lower mold body 1 and an upper mold base 2, the top of the lower mold body 1 is provided with a V-shaped groove 3, the front of the bottom end of the upper mold base 2 is provided with a plurality of insertion grooves 5, the front of the upper mold base 2 is provided with a plurality of extrusion grooves 4, and a through groove 6 is respectively provided between the extrusion groove 4 and the insertion groove 5, the inner cavity of the insertion groove 5 is respectively provided with a convex socket 7, the bottom end of the convex socket 7 extends to the bottom of the upper mold base 2 and is fixedly connected to the upper forming mold 8, the bottom end of the upper forming mold 8 is provided with a V-shaped pressure head 9, the two adjacent upper forming dies 8 are fitted with each other, the top surface of the convex socket 7 is provided with a socket 10, the top of the inner cavity of the extrusion groove 4 is fixedly connected with a spring 11, the bottom end of the spring 11 is fixedly connected with a lifting plate 12, the bottom surface of the lifting plate 12 is fixedly connected with a pin 13, and the bottom end of the pin 13 passes through the through groove 6 and extends to the inner cavity of the socket 10.

[0028] In this embodiment, the lower mold body, the upper mold base 2 and the upper forming mold 8 are all made of high-strength steel, ensuring that the extrusion groove 4, the insertion groove 5 and the through groove 6 on the upper mold base 2 will not affect its strength.

[0029] For details, please refer to Figure 1 A first scale 15 is provided on the front of the lower mold body 1, and a second scale 14 is provided on the front of the upper mold base 2.

[0030] In this embodiment, when the lower mold body 1 and the upper mold base 2 are installed on the bending machine, the zero point positions of the second scale 14 and the first scale 15 are ensured to be aligned, so that when the plate is placed on the top surface of the lower mold body 1, the first scale 15 can be used to measure the position of the reinforcing rib protrusion on the plate, so that the second scale 14 can be used to remove the upper forming mold 8 at the corresponding position below the upper mold base 2, and the gap can be used to avoid the reinforcing rib protrusion on the plate.

[0031] For details, please refer to Figure 1 A limit plate 17 is provided at one end of the lower mold body 1 , and a fastening bolt 18 is sleeved on the limit plate 17 , and the end of the fastening bolt 18 is threadedly installed into the interior of the lower mold body 1 .

[0032] In this embodiment, the limiting plate 17 is installed by tightening the bolts 18, and the limiting plate 17 is used to limit one end of the plate to ensure the consistency of the position of the plate placed on the lower mold body 1 during batch bending.

[0033] For details, please refer to Figure 1 The front of the upper forming die 8 is provided with a hand-grip groove 16.

[0034] In this embodiment, the hand-grip groove 16 is used to facilitate the extraction of the single upper forming die 8 from between the two spaced upper forming dies 8 .

[0035] For details, please refer to Figure 3 、 Figure 4 and Figure 6 The inner wall of the insertion groove 5 is in contact with the side surface of the convex socket 7, and the top surface of the upper forming die 8 is in contact with the bottom surface of the upper die base 2.

[0036] In this embodiment, the stability of the male socket 7 inserted into the inner cavity of the insertion slot 5 is ensured, and the downward extrusion force of the upper die base 2 is ensured to be smoothly transmitted to the upper forming die 8, so that the upper forming die 8 can be used to extrude and bend the plate.

[0037] For details, please refer to Figures 3 to 6 The outer diameter of the latch pin 13 is equal to the inner diameter of the insertion hole 10 and the through slot 6 respectively.

[0038] In this embodiment, the stability of the insertion of the pin 13 into the insertion hole 10 and the inner cavity of the through groove 6 is ensured, thereby ensuring the stability of the pin 13 fixing the upper mold base 2 and the convex socket 7.

[0039] Working principle: When in use, install the lower mold body 1 and the upper mold base 2 on the bending machine, and install multiple upper forming dies 8 at the bottom of the upper mold base 2 through the cooperation of the insertion groove 5, the convex socket 7, the spring 11, the lifting plate 12, the pin 13 and the socket 10. The two adjacent upper forming dies 8 fit each other. In addition, the end faces of the lower mold body 1 and the upper mold base 2 are aligned to ensure that the limit plate 17 does not affect the downward movement of the upper forming die 8. When it is necessary to bend a conventional sheet, the sheet is directly placed on the top of the lower mold body 1, and the bending machine is used to drive the upper mold base 2 and the upper forming die 8 to move downward. The V-shaped pressure head 9 under the upper forming die 8 is used to squeeze the sheet into the inner cavity of the V-shaped groove 3 and bend it into shape. When it is necessary to bend a sheet with a reinforcing rib protrusion, first place the sheet on the top surface of the lower mold body 1, and make one side of the sheet The end is fitted with the side of the limit plate 17, and the position of the reinforcement rib protrusion on the plate is measured by the first scale 15. At this time, the upper forming die 8 corresponding to the reinforcement rib protrusion is found through the second scale 14 on the upper die base 2, and the lifting plate 12 is pushed upward to drive the bottom end of the pin 13 to disengage from the socket 10 on the top surface of the convex socket 7 above the upper forming die 8, thereby releasing the fixation between the convex socket 7 and the upper die base 2. The upper forming die 8 is directly removed from the bottom of the upper die base 2 by hand using the hand groove 16, and then the position of the reinforcement rib protrusion is avoided. When it is necessary to avoid multiple reinforcement rib protrusions, multiple upper forming dies 8 are removed according to the above operation. At this time, the bending machine is used to drive the upper die base 2 and the remaining upper forming dies 8 to move downward, and the V-shaped pressure head 9 under the remaining upper forming die 8 is used to bend the plate.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A forming die for a metal sheet bending machine, characterized by: The present invention comprises a lower die body (1) and an upper die base (2), wherein a V-shaped groove (3) is provided on the top of the lower die body (1), a plurality of insertion grooves (5) are provided on the front of the bottom end of the upper die base (2), a plurality of extrusion grooves (4) are provided on the front of the upper die base (2), a through groove (6) is provided between the extrusion groove (4) and the insertion groove (5), and a convex socket (7) is provided in the inner cavity of the insertion groove (5), and the bottom end of the convex socket (7) extends to the bottom of the upper die base (2) and is fixedly connected to the upper forming die ( 8), a V-shaped pressing head (9) is provided at the bottom end of the upper forming die (8), two adjacent upper forming dies (8) are fitted with each other, a socket (10) is provided on the top surface of the convex socket (7), a spring (11) is fixedly connected to the top of the inner cavity of the extrusion groove (4), a lifting plate (12) is fixedly connected to the bottom end of the spring (11), a pin (13) is fixedly connected to the bottom surface of the lifting plate (12), and the bottom end of the pin (13) passes through the through groove (6) and extends to the inner cavity of the socket (10).

2. The forming die for a metal sheet bending machine according to claim 1, characterized in that: The front of the lower mold body (1) is provided with a first scale (15), and the front of the upper mold base (2) is provided with a second scale (14).

3. The forming die for a metal sheet bending machine according to claim 1, characterized in that: A limiting plate (17) is provided at one end of the lower mold body (1), a fastening bolt (18) is sleeved on the limiting plate (17), and the end of the fastening bolt (18) is threadedly mounted to the interior of the lower mold body (1).

4. The forming die for a metal sheet bending machine according to claim 1, characterized in that: The front sides of the upper forming dies (8) are each provided with a hand-gripping groove (16).

5. The forming die for a metal sheet bending machine according to claim 1, characterized in that: The inner wall of the insertion groove (5) is fitted with the side surface of the convex socket (7), and the top surface of the upper forming die (8) is fitted with the bottom surface of the upper die base (2).

6. The forming die for a metal sheet bending machine according to claim 1, characterized in that: The outer diameter of the latch pin (13) is respectively equal to the inner diameter of the insertion hole (10) and the through groove (6).

Images