Spliced bending knife

Abstract

The utility model discloses a splicing type bending knife which comprises a main body part and a knife head part, the main body part comprises a splicing groove which extends transversely; a splicing part matched with the splicing groove is arranged on the tool bit part, and the tool bit part is limited through the matching of the splicing part and the splicing groove, so that the tool bit part is detachably arranged on the main body part. When the tool bit part is damaged after being used for a long time, the tool bit part can be detached, only the tool bit part needs to be replaced, the whole tool does not need to be replaced, the use cost of the tool is greatly reduced, meanwhile, when bending machining is conducted on different products, the whole tool does not need to be replaced, the tool bit is replaced in a splicing mode, and the machining efficiency is greatly improved. And compared with the whole cutter, the replacement process is simpler, and the machining efficiency of products is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending equipment, in particular to a spliced bending knife. Background Art

[0002] A bending machine is a machine that can bend thin plates. Its structure mainly includes a machine frame, a hydraulic system, an electrical system, a slider mechanism, a synchronization mechanism, an upper and lower die mechanism, a back gauge, a front support rack, etc. The upper and lower die mechanism includes an upper pressing knife assembly and a lower bending die. According to different bending requirements, corresponding upper and lower bending dies are customized. Among them, the bending knife is an important component for bending workpieces.

[0003] When the bending knife bends a product, it mainly applies pressure to the product through the tool tip for bending. Therefore, during long-term use, the service life of the tool tip is shorter than that of other parts. Since the existing bending knife for a bending machine is of an integral structure. Therefore, when the tool tip is damaged, the whole tool needs to be replaced, resulting in a high usage cost of the tool. Moreover, when bending different products, the whole tool also needs to be removed from the external tool holder and replaced. The fixing method between the tool and the tool holder is relatively complex, resulting in a more troublesome tool replacement process, thus affecting the processing efficiency of the product. Therefore, it is necessary to further improve the existing tool structure of the bending machine. Summary of the Utility Model

[0004] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the utility model is to provide a spliced bending knife, which can effectively solve the problems of high usage cost, complex replacement process and affecting processing efficiency of the existing bending machine tool.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A spliced bending knife includes a main body part and a tool tip part; the main body part includes a splicing groove extending horizontally, and the splicing groove penetrates through the left and right side walls of the main body part; a splicing part matched with the splicing groove is arranged on the tool tip part, and the tool tip part is limited by the cooperation of the splicing part and the splicing groove, so that the tool tip part is detachably arranged on the main body part.

[0007] As a preferred scheme, the splicing groove includes a first splicing groove and a second splicing groove which are communicated. The first splicing groove is integrally recessed inward from the lower end surface of the main body part, and the second splicing groove is integrally recessed inward from the front and rear side walls at the upper end of the first splicing groove; correspondingly, the splicing part includes a first splicing part matched with the first splicing groove and a second splicing part matched with the second splicing groove. During splicing, the degrees of freedom of the tool tip part in the front-rear direction and the up-down direction are limited by the cooperation of the second splicing groove and the second splicing part.

[0008] As a preferred solution, an installation groove is formed at the connection of one side wall of the main body part and the cutter head part. A fixing hole penetrates through the bottom of the installation groove. The fixing hole is formed by splicing the main body part and the cutter head part. A limiting groove extending forward and backward is formed at the connection of the other side wall of the main body part and the cutter head part. The fixing hole communicates with the limiting groove. A fixing nut is arranged in the limiting groove. The side wall of the fixing nut is respectively in contact with and limited by the upper and lower side walls of the limiting groove. A fixing bolt sequentially passes through the fixing hole and the fixing nut to fix the cutter head part and the main body part together.

[0009] As a preferred solution, the main body part is provided with an installation hole for mating installation with the outside, and a limiting part for mating with an external tool rest protrudes from the inner side wall of the installation hole.

[0010] As a preferred solution, the main body part is arranged to extend horizontally, the splicing groove is an inverted trapezoid, the cutter head part is also arranged to extend horizontally, and the splicing part is also an inverted trapezoid. When the cutter head part is spliced with the main body part, the front and rear side walls of the splicing part press down on the inner side wall of the splicing groove to limit the position of the cutter head part.

[0011] The utility model has obvious advantages and beneficial effects compared with the prior art. Specifically, as can be seen from the above technical solutions:

[0012] It includes a horizontally extending splicing groove in the main body part; and is matched with a splicing part arranged on the cutter head part for the splicing groove. The cutter head part is limited by the cooperation of the splicing part and the splicing groove, so that the cutter head part is detachably arranged on the main body part. When the cutter head part is damaged after long-term use, the cutter head part can be removed and only the cutter head part needs to be replaced, without replacing the entire tool, which greatly reduces the use cost of the tool. At the same time, when bending different products, there is no need to replace the entire tool either. The replacement of the cutter head is through splicing, which is much simpler than the replacement process of the overall tool, greatly improving the processing efficiency of the product.

[0013] To more clearly illustrate the structural features and functions of the utility model, the following will combine the drawings and specific embodiments to elaborate on the utility model in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the first preferred embodiment of the utility model;

[0015] Figure 2 is an exploded state schematic diagram of the first preferred embodiment of the utility model;

[0016] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0017] Figure 4 is Figure 2 The enlarged schematic view of part B in

[0018] Figure 5 is the front view of the other side of the first preferred embodiment of the present utility model;

[0019] Figure 6 is Figure 5 The enlarged schematic view of part C in

[0020] Figure 7 is the three-dimensional structure schematic view of the second preferred embodiment of the present utility model;

[0021] Figure 8 is Figure 7 The enlarged schematic view of part D in

[0022] Explanation of the drawing reference numerals:

[0023] 10. Main body part 101. Splicing groove

[0024] 102. First splicing groove 103. Second splicing groove

[0025] 104. Mounting hole 11. Limiting part

[0026] 20. Knife head part 201. Mounting groove

[0027] 202. Fixing hole 203. Limiting groove

[0028] 21. Splicing part 211. First splicing part

[0029] 212. Second splicing part 22. Fixing nut

[0030] 23. Fixing bolt. Detailed implementation manners

[0031] Please refer to Figures 1 to 6 as shown, which shows the specific structure of the first preferred embodiment of the present utility model, including a main body part 10 and a knife head part 20.

[0032] The main body 10 includes a laterally extending splicing groove 101, which runs through the left and right side walls of the main body 10. In this embodiment, the splicing groove 101 includes a first splicing groove 102 and a second splicing groove 103 that are connected; the first splicing groove 102 is formed by the lower end surface of the main body 10, and the second splicing groove 103 is formed by the front and rear side walls of the upper end of the first splicing groove 102; so that the splicing groove 101 is a "T"-shaped structure. The main body 10 is provided with a mounting hole 104 for mounting with the outside, and the inner side wall of the mounting hole 104 is convexly provided with a limiting part 11 for matching with the external tool holder. So that it is installed on the external tool holder through the mounting hole 104, and the main body 10 is limited by the matching of the limiting part 11 and the external tool holder.

[0033] The cutter head 20 is provided with a splicing portion 21 that cooperates with the splicing groove 101. The cutter head 20 is limited by the cooperation of the splicing portion 21 and the splicing groove 101, so that the cutter head 20 can be detachably arranged on the main body 10. Compared with the fixing method of the tool as a whole and the external tool holder, the splicing method is simpler in the disassembly and replacement process. When the cutter head 20 is damaged, it is only necessary to disassemble the cutter head 20 and replace it with a new cutter head 20, without replacing the entire tool, which greatly reduces the cost of using the tool. In this embodiment, correspondingly, the splicing portion 21 includes a first splicing portion 211 that cooperates with the first splicing groove 102 and a second splicing portion 212 that cooperates with the second splicing groove 103. When splicing, the second splicing groove 103 and the second splicing portion 212 cooperate to limit the freedom of the cutter head 20 in the front-to-back direction and the up-and-down direction. A mounting groove 201 is formed at the connection of one side wall of the main body 10 and the cutter head 20, and a fixing hole 202 is penetrated at the bottom of the mounting groove 201. The fixing hole 202 is formed by splicing the main body 10 and the cutter head 20. A limiting groove 203 extending forward and backward is formed at the connection of the other side wall of the main body 10 and the cutter head 20, and the fixing hole 202 is connected with the limiting groove 203; a fixing nut 22 is arranged in the limiting groove 203, and the side walls of the fixing nut 22 are respectively contacted with the upper and lower side walls of the limiting groove 203 to limit the fixing nut 22, so as to prevent the fixing nut 22 from rotating; a fixing bolt 23 passes through the fixing hole 202 and the fixing nut 22 in sequence to fix the cutter head 20 and the main body 10 together. The position of the cutter head 20 is further fixed by the cooperation of the fixing bolt 23 and the fixing nut 22.

[0034] Please refer to Figures 7 to 8 As shown, it shows the specific structure of the second preferred embodiment of the utility model, which is basically the same as the structure of the first preferred embodiment mentioned above, and the difference is:

[0035] In this embodiment, the main body portion 10 is arranged to extend horizontally, and the splicing groove 101 is an inverted trapezoid. The cutter head portion 20 is also arranged to extend horizontally, and the splicing portion 21 is also an inverted trapezoid. When the cutter head portion 20 is spliced with the main body portion 10, the front and rear side walls of the splicing portion 21 are pressed against the inner side walls of the splicing groove 101 to limit the position of the cutter head portion 20. When both the main body portion 10 and the cutter head portion 20 extend horizontally, the cutter head portion 20 can be limited only by splicing without an additional fixing structure, making the overall structure simpler and the splicing process more convenient.

[0036] The design focus of the present utility model lies in that the main body portion includes a splicing groove extending horizontally; and in cooperation with a splicing portion provided on the cutter head portion and matching with the splicing groove, the cutter head portion is limited by the cooperation of the splicing portion and the splicing groove, so that the cutter head portion is detachably arranged on the main body portion. When the cutter head portion is damaged after long-term use, the cutter head portion can be removed and only the cutter head portion needs to be replaced without replacing the entire tool, greatly reducing the use cost of the tool. At the same time, when bending different products, there is no need to replace the entire tool either. The replacement of the cutter head is achieved by splicing, which is much simpler than the replacement process of the whole tool, greatly improving the processing efficiency of the product.

[0037] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A spliced ​​bending knife, characterized in that: It includes a main body and a cutter head; the main body includes a laterally extending splicing groove, which runs through the left and right side walls of the main body; the cutter head is provided with a splicing part that cooperates with the splicing groove, and the cutter head is limited by the cooperation between the splicing part and the splicing groove, so that the cutter head can be detachably arranged on the main body.

2. The spliced ​​bending knife according to claim 1, characterized in that: The splicing groove includes a first splicing groove and a second splicing groove which are connected. The first splicing groove is formed by an integral inward concave arrangement of the lower end surface of the main body, and the second splicing groove is formed by an integral inward concave arrangement of the front and rear side walls of the upper end of the first splicing groove. Correspondingly, the splicing part includes a first splicing part that cooperates with the first splicing groove and a second splicing part that cooperates with the second splicing groove. During splicing, the freedom of the tool head in the front and rear directions and the up and down directions is limited by the cooperation between the second splicing groove and the second splicing part.

3. The spliced ​​bending knife according to claim 2, characterized in that: A mounting groove is formed at the connection between the main body and one side wall of the blade head, a fixing hole is penetrated at the bottom of the mounting groove, the fixing hole is formed by splicing the main body and the blade head, a limiting groove extending forward and backward is formed at the connection between the main body and the other side wall of the blade head, the fixing hole is connected with the limiting groove; a fixing nut is arranged in the limiting groove, the side walls of the fixing nut are respectively contacted with the upper and lower side walls of the limiting groove for limiting, and a fixing bolt passes through the fixing hole and the fixing nut in sequence to fix the blade head and the main body together.

4. The spliced ​​bending knife according to claim 1, characterized in that: The main body is provided with a mounting hole for matching with the outside, and the inner side wall of the mounting hole is convexly provided with a limiting part for matching with the external tool holder.

5. The spliced ​​bending knife according to claim 1, characterized in that: The main body is arranged to extend laterally, and the splicing groove is an inverted trapezoid. The blade head is also arranged to extend laterally, and the splicing portion is also an inverted trapezoid. When the blade head is spliced ​​with the main body, the front and rear side walls of the splicing portion are pressed down on the inner side walls of the splicing groove to limit the position of the blade head.

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