Combined bent knife mold

Abstract

The utility model discloses a combined type bent knife mold, and relates to the technical field of bending machines. The combined type bent knife mold comprises a first knife mold, a second knife mold and an assembling plate, the first knife mold is arranged at the two ends of the combined mold, the second knife mold is arranged at the middle end of the combined mold, and the first knife mold and the second knife mold are fixedly connected through the assembling plate. Inserting rods and inserting holes are arranged at the connecting positions of the first cutting die and the second cutting die, the inserting rods and the inserting holes are arranged at intervals, and positioning rods are welded to the positions, located at the lower ends of the inserting holes, of the first cutting die and the second cutting die. In order to overcome the defect that a bent knife die cannot be assembled, the whole length of the bent knife die can be adjusted by assembling the second knife dies with different numbers between the two first knife dies, the bent knife die is suitable for bending metal plates with different lengths, and only the worn knife dies need to be replaced during later maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, and specifically relates to a combined bending tool die. Background Art

[0002] The bending tool die is an auxiliary device for sheet metal bending. It includes an upper die and a lower die. When in use, the lower die is installed on the workbench, then the upper die is installed on the bending machine, and then the sheet metal is placed on the lower die. The bending machine is turned on to press down the upper die, and the upper die and the lower die are used to bend the sheet metal. However, in the existing market, the structures of most lower dies are fixed and cannot be assembled according to different bending requirements, which limits the ability of the bending machine to adapt to different sheet metal sizes and shapes, and also increases the difficulty of later maintenance.

[0003] Therefore, in order to solve the defect that the bending tool die cannot be assembled, it is very necessary to propose a combined bending tool die. Content of the Utility Model

[0004] The purpose of the utility model is to provide a combined bending tool die. By assembling different numbers of second tool dies between two first tool dies, the overall length of the bending tool die can be adjusted to adapt to bending sheet metals of different lengths, and during later maintenance, only the worn tool die needs to be replaced, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined bending tool die includes a first tool die, a second tool die and an assembly plate. The first tool die is arranged at both ends of the combined die, the second tool die is arranged in the middle of the combined die, the first tool die and the second tool die are fixedly connected through the assembly plate. Plug rods and jacks are arranged at the connection positions of the first tool die and the second tool die, and the plug rods and the jacks are arranged at intervals. Positioning rods are welded at the positions of the first tool die and the second tool die below the jacks. Positioning holes adapted to the positioning rods are opened at the bottom end of the assembly plate, and nuts are threadedly connected to the ends of the positioning rods located outside the positioning holes.

[0007] Preferably, insertion blocks are symmetrically welded to the left and right of the top end of the assembly plate.

[0008] Preferably, assembly grooves for snap-fitting connection with the assembly plate are opened at the connection positions of the first tool die and the second tool die, and insertion slots adapted to the insertion blocks are opened at the positions of the first tool die and the second tool die above the assembly grooves.

[0009] Preferably, a first double-headed bolt and a second double-headed bolt are detachably connected to the assembly plate. The first double-headed bolt fixedly connects the insertion block and the insertion slot, and the second double-headed bolt fixedly connects the plug rod and the jack.

[0010] Preferably, the upper surfaces of the first die and the second die are both recessed downward to form die grooves.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. For this combined bending die, by assembling different numbers of second dies between two first dies, the overall length of the bending die can be adjusted to meet the bending requirements of sheet metals of different lengths. The insertion rod and the insertion hole are fixed by the first double-headed bolt, and the insertion block and the slot are fixed by the second double-headed bolt, which improves the firmness of the connection between the dies and enhances the stability of the entire combined die structure.

[0013] 2. For this combined bending die, during later maintenance, if a certain second die is worn, only the worn second die needs to be replaced, without replacing the entire lower die, which greatly reduces the maintenance cost and downtime, and improves the usability and economy of the bending machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0015] Figure 2 is a structural diagram of the second die of the present utility model;

[0016] Figure 3 is a structural diagram of the assembly plate of the present utility model;

[0017] Figure 4 is a cross-sectional view of the second die of the present utility model.

[0018] In the figure: 1. First die; 2. Second die; 3. Assembly plate; 31. Insertion block; 32. First double-headed bolt; 33. Second double-headed bolt; 34. Positioning hole; 4. Die groove; 5. Insertion rod; 6. Insertion hole; 7. Positioning rod; 8. Assembly groove; 9. Slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figure 1 - Figure 2, A combined curved knife mold, including a first knife mold 1, a second knife mold 2 and an assembly plate 3. The first knife mold 1 is arranged at both ends of the combined mold, the second knife mold 2 is arranged in the middle of the combined mold, the first knife mold 1 and the second knife mold 2 are fixedly connected through the assembly plate 3, and the upper surfaces of the first knife mold 1 and the second knife mold 2 are both recessed downward to form knife grooves 4.

[0021] To solve the technical problem of how to assemble the knife mold, please refer to Figure 2 - Figure 4 , The present embodiment provides the following technical solutions:

[0022] At the connection positions of the first knife mold 1 and the second knife mold 2, there are insertion rods 5, insertion holes 6 and assembly grooves 8. The insertion rods 5 and the insertion holes 6 are arranged at intervals. The assembly groove 8 is engaged with the assembly plate 3. At the top end of the assembly plate 3, insertion blocks 31 are symmetrically welded on the left and right. At the position of the first knife mold 1 and the second knife mold 2 above the assembly groove 8, slots 9 adapted to the insertion blocks 31 are opened.

[0023] At the position of the first knife mold 1 and the second knife mold 2 below the insertion holes 6, positioning rods 7 are welded. At the bottom end of the assembly plate 3, positioning holes 34 adapted to the positioning rods 7 are opened. At the end of the positioning rod 7 outside the positioning hole 34, a nut is threadedly connected.

[0024] Specifically, insert the insertion rod 5 of the first knife mold 1 into the insertion hole 6 of the second knife mold 2 until the side end of the first knife mold 1 is closely attached to the side end of the second knife mold 2. Then, insert the positioning hole 34 of the assembly plate 3 into the positioning rods 7 of the first knife mold 1 and the second knife mold 2 until the insertion block 31 is inserted into the slot 9. At this time, the assembly groove 8 is stably engaged with the assembly plate 3. Finally, screw the nut tightly on the end of the positioning rod 7 outside the positioning hole 34 to realize the assembled connection of the first knife mold 1 and the second knife mold 2.

[0025] To solve the technical problem of how to improve the connection firmness of the knife mold, please refer to Figure 2 - Figure 4 , The present embodiment provides the following technical solutions:

[0026] The assembly plate 3 is detachably connected with a first double-headed bolt 32 and a second double-headed bolt 33. The first double-headed bolt 32 fixedly connects the insertion block 31 and the slot 9, and the second double-headed bolt 33 fixedly connects the insertion rod 5 and the insertion hole 6.

[0027] Specifically, after the first knife mold 1 and the second knife mold 2 are assembled and connected, use the first double-headed bolt 32 to fixedly connect the insertion block 31 and the slot 9, and then use the second double-headed bolt 33 to fixedly connect the insertion rod 5 and the insertion hole 6 to enhance the connection firmness of the first knife mold 1 and the second knife mold 2, and further enhance the overall stability of the combined knife mold.

[0028] Working principle: When using this combined curved knife die, insert the insertion rod 5 of the first knife die 1 into the insertion hole 6 of the second knife die 2 until the side end of the first knife die 1 is closely attached to the side end of the second knife die 2. Then, insert the positioning hole 34 of the assembly plate 3 into the positioning rod 7 of the first knife die 1 and the second knife die 2 until the insertion block 31 is inserted into the slot 9. At this time, the assembly groove 8 is stably engaged with the assembly plate 3. Then, screw a nut onto the end of the positioning rod 7 outside the positioning hole 34. Finally, fix and connect the insertion block 31 and the slot 9 with the first double-headed bolt 32, and fix and connect the insertion rod 5 and the insertion hole 6 with the second double-headed bolt 33 to achieve the assembled connection of the first knife die 1 and the second knife die 2. The connection method between two second knife dies 2 is the same as the above. In this way, the length of the curved knife die can be adjusted according to the length of the sheet metal.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined machete die, comprising a first die (1), a second die (2) and an assembly plate (3), characterized in that: The first die (1) is arranged at both ends of the combined die, the second die (2) is arranged in the middle of the combined die, the first die (1) and the second die (2) are fixedly connected through an assembly plate (3), insertion rods (5) and insertion holes (6) are arranged at the connection positions of the first die (1) and the second die (2), the insertion rods (5) and the insertion holes (6) are arranged at intervals, positioning rods (7) are welded at the positions of the first die (1) and the second die (2) below the insertion holes (6), positioning holes (34) adapted to the positioning rods (7) are formed at the bottom end of the assembly plate (3), and nuts are threadedly connected to the ends of the positioning rods (7) outside the positioning holes (34).

2. The combined curved knife die according to claim 1, characterized in that: Insertion blocks (31) are symmetrically welded to the left and right at the top end of the assembly plate (3).

3. The combined curved knife die according to claim 2, wherein: Assembly grooves (8) for snap-fitting connection with the assembly plate (3) are formed at the connection positions of the first die (1) and the second die (2), and insertion slots (9) adapted to the insertion blocks (31) are formed at the positions of the first die (1) and the second die (2) above the assembly grooves (8).

4. The combined machete die according to claim 1, characterized in that: A first double-headed bolt (32) and a second double-headed bolt (33) are detachably connected to the assembly plate (3), the first double-headed bolt (32) fixedly connects the insertion block (31) and the insertion slot (9), and the second double-headed bolt (33) fixedly connects the insertion rod (5) and the insertion hole (6).

5. The combined curved knife die according to claim 1, wherein: Die grooves (4) are recessed downward on the upper surfaces of the first die (1) and the second die (2).

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