A bending tool for rapid flanging of sheet metal parts
By designing a rapid flanging and bending tool, the problems of multi-step debugging and high mold costs in the production of sheet metal parts have been solved, enabling efficient and low-cost production of sheet metal parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU CHANGSHENG VEHICLE IND CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-05
Smart Images
Figure CN224322125U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sheet metal parts processing equipment technology, specifically a bending tool for quick flanging of sheet metal parts. Background Technology
[0002] For sheet metal parts with large production volumes and complex designs, the manufacturing process involves creating molds or using a bending process. Creating molds for part production requires part analysis, mold drawing, and mold making, which takes a long time and is expensive. Production also requires a large amount of manpower.
[0003] However, production is achieved through bending processes. The existing bending process is a single-blade bending process, which requires multiple steps to complete the production. The dimensions need to be adjusted each time production is carried out, resulting in relatively low production efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a bending tool for quick flanging of sheet metal parts, so as to solve the problems mentioned in the background art.
[0005] The technical solution adopted by this application to solve its technical problem is:
[0006] A bending tool for quick flanging of sheet metal parts includes an upper die tool and a lower die tool block body. The upper die tool is driven by a bending machine and acts on the lower die tool block body. The top surface of the lower die tool block body is provided with a mounting groove. A lower die material support block is slidably connected in the mounting groove. Lower die flanging tools are slidably mounted on both sides of the mounting groove.
[0007] An auxiliary fixing mechanism is installed on the side wall of the lower die flanging cutter, and the auxiliary fixing mechanism is slidably installed on both side walls of the lower die cutter block body.
[0008] The lower die flanging cutter has an integrally formed protrusion on the top inner side, the surface of which is arc-shaped, and an integrally formed curved part on the bottom inner side, the end of which is inclined upward.
[0009] Preferably, the auxiliary fixing mechanism includes a screw, a second spring, and a bushing. Mounting holes are respectively opened on both sides of the lower die cutter body. The bushing is inserted and installed in the mounting hole. The screw passes through the bushing and is fixedly installed on the side wall of the lower die flanging cutter. The second spring is sleeved on the side wall of the screw.
[0010] Preferably, a guide post is fixedly connected to the bottom surface of the lower mold support block, and a guide sleeve is installed on the top surface of the mounting groove. The guide post and the guide sleeve are slidably inserted into each other.
[0011] Preferably, a limiting hole is formed on the top surface of the lower die block body, and a first spring is inserted and installed in the limiting hole, with the top end of the first spring abutting against the bottom surface of the lower die support block.
[0012] Preferably, the bottom surface of the lower mold support block is provided with inner recessed grooves on both sides;
[0013] When the lower die support block is pushed down by the upper die cutter, the inner groove on the bottom surface of the lower die support block abuts against the top of the curved part.
[0014] Preferably, the bottom surface of the upper die cutter is a convex micro-arc surface, and the top surface of the lower die support block is a concave micro-arc surface.
[0015] The beneficial effects of this application are:
[0016] This technical solution simplifies the bending process by using a quick flanging and bending tool. It is simple and easy to operate, eliminates the need for molds, and greatly saves development costs. Furthermore, it allows for faster replacement and turnover during production. Compared to traditional single-blade bending, which requires multiple adjustments to the tool position, this solution uses the linkage between the lower die flanging tool and the lower die support block, along with the reset of the first spring, to complete the flanging and bending of both sides of the part in a single press. This reduces the number of adjustments, minimizes manual intervention, and improves production efficiency.
[0017] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description
[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0019] Figure 1 This is an overall schematic diagram of a bending tool for rapid flanging of sheet metal parts according to the present invention;
[0020] Figure 2 This is a schematic diagram of the upper die tool structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the assembly structure of the lower die cutter block body and the lower die material support block of this utility model;
[0022] Figure 4 This is a schematic diagram of the lower mold support block structure of this utility model;
[0023] Figure 5 This is a three-dimensional structural diagram of the lower die cutter block body of this utility model;
[0024] Figure 6 This is a cross-sectional view of the lower die cutter block body of this utility model.
[0025] The following are the labeling elements in the figure:
[0026] 1. Upper die cutter;
[0027] 2. Lower die cutter block body; 21. Mounting groove; 22. Limiting hole; 23. Guide sleeve;
[0028] 3. Product parts;
[0029] 4. Lower mold support block; 41. Inner recess; 42. Guide pillar;
[0030] 5. First spring;
[0031] 6. Lower die flanging cutter; 61. Protrusion; 62. Bending part;
[0032] 7. Auxiliary fixing mechanism; 71. Screw; 72. Second spring; 73. Bushing;
[0033] 8. Micro-arc surface. Detailed Implementation
[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.
[0036] Please see Figure 1-6 The embodiments provided by this utility model are as follows:
[0037] like Figure 1 As shown, a bending tool for quick flanging of sheet metal parts includes an upper die tool 1 and a lower die tool body 2. The upper die tool 1 is driven by a bending machine and acts on the lower die tool body 2. The upper die tool 1 is mounted on a downward moving part of the bending machine, so that the bending machine can drive the upper die tool 1 to move downward. The lower die tool body 2 is mounted at the processing position of the bending machine, so that when the upper die tool 1 moves downward, it can act on the top surface of the lower die tool body 2. The product part 3 that needs to be flanged is placed on the top surface of the lower die tool body 2, so that the bending process is performed under the joint action of the upper die tool 1 and the lower die tool body 2.
[0038] Specifically, such as Figure 2 and 3 As shown, the top surface of the lower die cutter block body 2 is provided with a mounting groove 21, and the lower die support block 4 is slidably connected in the mounting groove 21. The bottom surface of the upper die cutter 1 is a convex micro-arc surface 8, and the top surface of the lower die support block 4 is a concave micro-arc surface 8. This allows the product part 3 to bend on both sides before bending, through the micro-arc surfaces 8 of the upper die cutter 1 and the lower die support block 4, forming a pre-deformed state. Pre-deformation reduces the subsequent bending resistance, reduces the risk of material cracking, and improves the flanging accuracy and efficiency.
[0039] like Figure 3 and 6 As shown, a lower die flanging cutter 6 is slidably mounted on both sides of the mounting groove 21. The upper inner side of the lower die flanging cutter 6 has an integrally formed protrusion 61 with an arc-shaped surface for flanging the product part 3. The lower die flanging cutter 6 has an integrally formed curved part 62 with an upward-sloping end. The lower die support block 4 has inner recesses 41 on both sides of its bottom surface. When the lower die support block 4 is pushed down by the upper die cutter 1, the inner recesses 41 on the bottom surface of the lower die support block 4 abut against the top of the curved part 62, pushing the bottom of the lower die flanging cutter 6 to rotate inward to a certain extent. This causes the protrusion 61 to act on both sides of the product part 3, allowing the edges of the product part 3 to be bent. The arc-shaped protrusion 61 ensures that the flanging corners are smooth and avoids stress concentration.
[0040] It is worth noting that, such as Figure 4 As shown, a guide post 42 is fixedly connected to the bottom surface of the lower mold support block 4, and a guide sleeve 23 is installed on the top surface of the mounting groove 21. The guide post 42 and the guide sleeve 23 are slidably inserted into each other. When the lower mold support block 4 moves downward in the mounting groove 21, the guide post 42 will be inserted into the guide sleeve 23, thereby restricting the movement direction of the lower mold support block 4, preventing offset or tilting, and ensuring the stability of the flanging process.
[0041] It is worth noting that, such as Figure 5 As shown, a limiting hole 22 is provided on the top surface of the lower die cutter block body 2. A first spring 5 is inserted and installed in the limiting hole 22. The top of the first spring 5 abuts against the bottom surface of the lower die support block 4. When the upper die cutter 1 is pressed down, the lower die support block 4 moves down and compresses the first spring 5. When the upper die cutter 1 is raised, the first spring 5 pushes the lower die support block 4 to reset, preparing for the next processing, reducing manual intervention and improving processing continuity.
[0042] like Figure 6As shown, an auxiliary fixing mechanism 7 is installed on the side wall of the lower die flanging cutter 6. The auxiliary fixing mechanism 7 is slidably installed on both side walls of the lower die cutter body 2. The auxiliary fixing mechanism 7 includes a screw 71, a second spring 72, and a bushing 73. Mounting holes are opened on both sides of the lower die cutter body 2. The bushing 73 is inserted into the mounting holes. The screw 71 passes through the bushing 73 and is fixedly installed on the side wall of the lower die flanging cutter 6. The second spring 72 is sleeved on the side wall of the screw 71.
[0043] The screw 71 has a smaller diameter than the inner diameter of the bushing 73. The screw 71 can move up and down in the bushing 73 to a certain extent. When the lower die support block 4 acts on the bending part at the bottom of the lower die flanging cutter 6, the lower die flanging cutter 6 can drive the screw 71 to move in the bushing 73 to a certain extent. At the same time, when the lower die flanging cutter 6 moves, the second spring 72 is compressed on both sides of the lower die cutter block body 2. When the lower die support block 4 does not act on the lower die flanging cutter 6, the lower die flanging cutter 6 can be reset in the mounting groove 21 under the elastic force of the second spring 72. This ensures that the lower die flanging cutter 6 is accurately reset after flanging, enhances the stability of the lower die flanging cutter 6, and reduces vibration and displacement errors, in preparation for the next bending of the product part 3.
[0044] The overall principle is as follows: In the initial state, the lower mold support block 4 is in a high position under the support of the first spring 5, and the lower mold flanging cutter 6 is located on both sides of the mounting groove 21. When the upper mold cutter 1 is pressed down, the upper mold cutter 1 contacts the product part 3, and the micro-arc surface 8 causes the two sides of the product part 3 to lift up. The upper mold cutter 1 continues to press down, and the lower mold support block 4 moves down. Through the cooperation of the inner recess 41 and the bending part 62, the lower mold flanging cutter 6 is pushed to slide inward and flip to a certain extent, thereby completing the flanging of the product part 3. Then the upper mold cutter 1 is raised, the first spring 5 pushes the lower mold support block 4 to reset, and the second spring 72 pushes the lower mold flanging cutter 6 to reset, ready for the next processing.
[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A bending tool for rapid flanging of sheet metal parts, comprising an upper die tool (1) and a lower die tool block body (2), wherein the upper die tool (1) is driven by a bending machine and acts on the lower die tool block body (2), characterized in that: The top surface of the lower die cutter block body (2) is provided with an installation groove (21), and a lower die support block (4) is slidably connected in the installation groove (21). Lower die flanging cutters (6) are slidably installed on both sides of the installation groove (21). An auxiliary fixing mechanism (7) is installed on the side wall of the lower die flanging cutter (6), and the auxiliary fixing mechanism (7) is slidably installed on both side walls of the lower die cutter block body (2). The lower die flanging cutter (6) has an integrally formed protrusion (61) on the inner side of its top, the surface of which is arc-shaped, and an integrally formed curved part (62) on the inner side of its bottom, the end of which is inclined upward.
2. The bending tool for rapid flanging of sheet metal parts according to claim 1, characterized in that: The auxiliary fixing mechanism (7) includes a screw (71), a second spring (72) and a bushing (73). The lower die cutter block body (2) has mounting holes on both sides. The bushing (73) is inserted into the mounting hole. The screw (71) passes through the bushing (73) and is fixedly installed on the side wall of the lower die flanging cutter (6). The second spring (72) is sleeved on the side wall of the screw (71).
3. A bending tool for rapid flanging of sheet metal parts according to claim 1, characterized in that: The bottom surface of the lower mold support block (4) is fixedly connected with a guide post (42), and the top surface of the mounting groove (21) is equipped with a guide sleeve (23). The guide post (42) and the guide sleeve (23) are slidably inserted into each other.
4. A bending tool for rapid flanging of sheet metal parts according to claim 1, characterized in that: The top surface of the lower die block body (2) is provided with a limiting hole (22), and a first spring (5) is inserted into the limiting hole (22). The top of the first spring (5) abuts against the bottom surface of the lower die support block (4).
5. A bending tool for rapid flanging of sheet metal parts according to claim 3, characterized in that: The bottom surface of the lower mold support block (4) is provided with inner grooves (41) on both sides. When the lower die support block (4) is pushed down by the upper die cutter (1), the inner groove (41) on the bottom surface of the lower die support block (4) abuts against the top of the curved part (62).
6. A bending tool for rapid flanging of sheet metal parts according to claim 1, characterized in that: The bottom surface of the upper die cutter (1) is a convex micro-arc surface (8), and the top surface of the lower die support block (4) is a concave micro-arc surface (8).