An adjustable bending action component for a bending machine
By setting an installation groove on the surface of the adjusting roller of the bending machine and using a combination of a hand-turned threaded rod and a plunger, the problems of large space occupation and instability during cutter head replacement in the prior art are solved, and convenient installation and efficient replacement of the cutter head are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南京芬宝数控机床有限公司
- Filing Date
- 2025-10-09
- Publication Date
- 2026-07-03
AI Technical Summary
When changing the bending cutter head in the existing bending machine, the cutter head needs to be moved to the left side of the adjusting roller for installation, which occupies a lot of external space. In addition, the movement of the movable baffle causes other cutter heads to be released from their fixed position, affecting the debugging efficiency.
An installation groove is set on the surface of the adjusting roller. The bending cutter head is inserted straight from front to back. It is easy to install by hand-turning the threaded rod and the insertion post. The four sets of threaded rods can be operated independently without affecting the stability of other cutter heads.
It enables convenient installation and disassembly of the bending cutter head, ensuring the practicality and replacement efficiency of the device, without affecting the installation stability of other cutter heads.
Smart Images

Figure CN224444203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending machine technology, specifically to an adjustable bending action component for a bending machine. Background Technology
[0002] With the development of machining technology, bending machines are becoming increasingly common. A bending machine is a machine that can bend metal sheets. A common hydraulic bending machine includes a machine frame, a worktable, and a clamping plate. The worktable is used to place the metal sheet and perform the bending operation. A supporting bottom mold is set on the top of the worktable. The bending cutter head is installed on the machine frame and is located directly above the supporting bottom mold. The cutter head of existing bending machines is usually installed and fixed by multiple pairs of bolts and nuts. When bending different sheets or bending sheets at different angles, the cutter head needs to be changed according to actual needs.
[0003] In response, Chinese patent application number CN202222355431.2 discloses an adjustable bending assembly for a multi-functional bending machine, including a lifting plate. Hydraulic cylinders are fixedly connected to both sides of the top of the lifting plate, and a first side plate and a second side plate are fixedly connected to both sides of the bottom of the lifting plate. Adjusting rollers are provided on the inner bottom of the first and second side plates, and mounting grooves are equidistantly formed on the circumference of the adjusting rollers. This utility model features multiple bending cutters arranged around the circumference of the adjusting rollers. By rotating the adjusting disc, the adjusting rollers are rotated, allowing the desired bending cutter to be rotated below the adjusting rollers, thus facilitating the switching of bending cutters and improving processing efficiency. A movable baffle blocks the mounting grooves to prevent the mounting strips from slipping out, facilitating the locking of the bending cutters. Pulling the locking disc removes the second and first insert rods, releasing the position lock of the bending cutters, thus facilitating disassembly of the bending cutters and improving maintenance efficiency.
[0004] This device allows the bending blade to be installed by creating an installation groove on the surface of the adjusting roller. However, the left end of the installation groove is open, so during installation, the bending blade needs to be moved to the left side of the adjusting roller and then inserted horizontally into the installation groove. This places high demands on the space outside the device. Furthermore, when replacing a set of bending blades, the movable baffle needs to be moved. The movement of the movable baffle will cause other bending blades that do not need to be replaced to be released from their fixed positions, resulting in displacement of other bending blades and affecting the debugging efficiency of the device.
[0005] Therefore, in order to solve the above problems, an adjustable bending action component for a bending machine is proposed. Utility Model Content
[0006] The purpose of this invention is to provide an adjustable bending action component for a bending machine, to solve the problems mentioned in the background art. In the prior art, the device can install the bending blade into a mounting groove on the surface of the adjusting roller. However, the left end of the mounting groove is through, so during installation, the bending blade needs to be moved to the left side of the adjusting roller and then inserted horizontally into the mounting groove. This requires a large amount of space outside the device. Furthermore, when replacing a set of bending blades, a movable baffle needs to be moved. The movement of the movable baffle causes other bending blades that do not need to be replaced to become unsecured, resulting in displacement of other bending blades and affecting the device's debugging efficiency.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable bending action component for a bending machine, comprising: a lifting frame, wherein a hydraulic cylinder is installed on the upper side of the lifting frame;
[0008] The bottom surface of the lifting frame is provided with a sliding groove;
[0009] The inner side of the lifting frame is equipped with a knife holder structure, which includes an adjusting roller. The adjusting roller is movably mounted on the inner side of the bottom end of the slide groove via a bearing. An installation groove is formed on the outer wall of the adjusting roller. A hand-threaded rod is movably mounted inside the adjusting roller via a bearing. A moving block is slidably mounted on the inner side of the installation groove. A post is welded to the end of the moving block. A bending cutter head is inserted into the inner side of the installation groove. A slot is formed at one end of the bending cutter head. Positioning grooves are formed on both sides of the installation groove. A positioning rod is slidably mounted on the inner side of the slide groove.
[0010] Preferably, the extended end of the hydraulic cylinder is fixedly connected to the top surface of the lifting frame, and the top surface of the hydraulic cylinder is fixedly connected to the machine body support.
[0011] Preferably, the mounting groove is provided in four sets, and the four sets of mounting grooves are evenly distributed on the surface of the adjusting roller, with the middle part of the hand-rotated threaded rod located inside the mounting groove.
[0012] Preferably, the hand-rotating threaded rod passes through the movable block and is threadedly connected to the movable block.
[0013] Preferably, the insert passes through the bending head via a slot, and the other end of the bending head protrudes from the surface of the adjusting roller.
[0014] Preferably, the positioning rod is engaged inside the positioning groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By opening an installation groove on the surface of the adjusting roller, the bending cutter head can be inserted straight into the installation groove from front to back. By rotating the hand-threaded rod, the insertion post can be inserted into the slot, realizing convenient installation of the bending cutter head on the surface of the adjusting roller. Furthermore, the four sets of hand-threaded rods are relatively independent. When one set of hand-threaded rods is disassembled or installed, it will not affect the installation stability of the other three sets of hand-threaded rods, thus ensuring the practicality of the device.
[0016] This invention features a tool holder structure. When the bending cutter head needs to be replaced, pulling the positioning rod upward causes it to slide upward within the groove, thus moving it out of the positioning groove and releasing the adjusting roller from the lifting frame. Rotating the adjusting roller adjusts the position of the four sets of bending cutters, allowing the set to be replaced to be moved to the front of the lifting frame. Then, releasing the positioning rod causes it to lock into the positioning groove under gravity, securing the adjusting roller within the lifting frame. Rotating the hand-threaded rod, which is threaded to the moving block, causes the moving block to slide within the mounting groove, moving it away from the bending cutter head. This allows the insert to be pulled out of the slot, releasing the bending cutter head from the mounting groove. After securing the device inside the slot, pull the bending head forward to remove it from the mounting slot. Then, insert the new bending head into the mounting slot from front to back, aligning the insert with the slot. Reverse the hand-threaded rod; its rotation moves the moving block closer to the bending head, which in turn inserts the insert into the slot. This secures the bending head inside the mounting slot via the moving block and insert, allowing for easy installation and removal. Four sets of hand-threaded rods and bending heads are provided, ensuring they do not interfere with each other. This prevents the installation stability of the other three sets of bending heads from being affected when rotating the hand-threaded rod to replace one set, guaranteeing the device's practicality. Attached Figure Description
[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an exploded view of the structure of this utility model;
[0019] Figure 3 This is a top sectional view of the mounting groove structure of this utility model;
[0020] Figure 4 This is a rear view of the exploded structure of the bending cutter head of this utility model.
[0021] In the diagram: 1. Lifting frame; 11. Slide groove; 12. Hydraulic cylinder; 2. Tool holder structure; 21. Adjusting roller; 22. Mounting groove; 23. Hand-operated threaded rod; 24. Moving block; 25. Insert column; 26. Bending cutter head; 27. Slot; 28. Positioning slot; 29. Positioning rod. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-4 This utility model provides an embodiment of an adjustable bending action component for a bending machine:
[0024] The lifting frame 1, hydraulic cylinder 12 and adjusting roller 21 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0025] An adjustable bending action assembly for a bending machine includes: a lifting frame 1, with a hydraulic cylinder 12 mounted on the upper side of the lifting frame 1;
[0026] A groove 11 is provided on the bottom surface of the lifting frame 1;
[0027] A tool holder structure 2 is installed on the inner side of the lifting frame 1. The tool holder structure 2 includes an adjusting roller 21, which is movably mounted on the inner side of the bottom end of the slide groove 11 via bearings. An installation groove 22 is provided on the outer wall of the adjusting roller 21. A hand-cranked threaded rod 23 is movably mounted inside the adjusting roller 21 via bearings. A moving block 24 is slidably mounted on the inner side of the installation groove 22. A post 25 is welded to the end of the moving block 24. A bending cutter head 26 is inserted into the inner side of the installation groove 22. A slot 27 is provided at one end of the bending cutter head 26. Positioning grooves 2 are provided on both sides of the installation groove 22. 8. A positioning rod 29 is slidably installed on the inner side of the slide groove 11. By opening an installation groove 22 on the surface of the adjusting roller 21, the bending cutter head 26 can be inserted straight into the installation groove 22 from front to back. By rotating the hand-threaded rod 23, the insertion post 25 can be inserted into the slot 27, realizing convenient installation of the bending cutter head 26 on the surface of the adjusting roller 21. Furthermore, the four sets of hand-threaded rods 23 are relatively independent. When disassembling or assembling one set of hand-threaded rods 23, it will not affect the installation stability of the other three sets of hand-threaded rods 23, thus ensuring the practicality of the device.
[0028] Furthermore, the extended end of the hydraulic cylinder 12 is fixedly connected to the top surface of the lifting frame 1, and the top surface of the hydraulic cylinder 12 is fixedly connected to the machine body support. The hydraulic cylinder 12 provides power for the lifting and lowering movement of the lifting frame 1.
[0029] Furthermore, the mounting groove 22 is provided with four sets, which are evenly distributed on the surface of the adjusting roller 21. The middle part of the hand-rotating threaded rod 23 is located inside the mounting groove 22. The rotation of the hand-rotating threaded rod 23 can drive the moving block 24 to move inside the mounting groove 22.
[0030] Furthermore, the hand-cranked threaded rod 23 passes through the movable block 24 and is threadedly connected to the movable block 24. The rotation of the hand-cranked threaded rod 23 can drive the movable block 24 to move inside the mounting groove 22, providing power for the movement of the insertion post 25 inside the slot 27.
[0031] Furthermore, the insert 25 passes through the slot 27 through the bending head 26, with the other end of the bending head 26 protruding from the surface of the adjusting roller 21. The insert 25 provides positioning for the installation of the bending head 26 inside the mounting slot 22.
[0032] Furthermore, the positioning rod 29 is engaged inside the positioning groove 28, and the positioning rod 29, together with the positioning groove 28, provides a fixed angle for the adjusting roller 21 inside the lifting frame 1.
[0033] Working principle: When the bending cutter head 26 needs to be replaced, pull the positioning rod 29 upward. The positioning rod 29 slides upward inside the slide groove 11 and moves out from the inside of the positioning groove 28. This releases the fixing of the adjusting roller 21 on the lifting frame 1. Rotating the adjusting roller 21 can adjust the position of the four sets of bending cutters head 26 so that the set of bending cutters head 26 to be replaced can be moved to the front of the lifting frame 1. Then, release the positioning rod 29. The positioning rod 29 will be stuck inside the positioning groove 28 under the action of gravity, thus fixing the adjusting roller 21 inside the lifting frame 1.
[0034] Rotate the hand-threaded rod 23, which is threadedly connected to the movable block 24. Rotation of the hand-threaded rod 23 causes the movable block 24 to slide inside the mounting groove 22, moving it away from the bending head 26. This allows the insert pin 25 to be pulled out from inside the slot 27, releasing the bending head 26 from its fixation within the mounting groove 22. Pulling the bending head 26 forward then removes it from the mounting groove 22. A new bending head 26 is then inserted into the mounting groove 22 from front to back, aligning the insert pin 25 with the slot 27. Reverse the hand-threaded rod 23... Rotation of 3 causes the moving block 24 to approach the bending head 26, which in turn causes the insert 25 to be inserted into the slot 27. This allows the bending head 26 to be fixed inside the mounting slot 22 via the moving block 24 and the insert 25, enabling convenient installation and removal of the bending head 26. There are four sets of hand-operated threaded rods 23 and four sets of bending heads 26. These four sets of hand-operated threaded rods 23 and four sets of bending heads 26 do not interfere with each other. This ensures that when one set of bending heads 26 is replaced and the hand-operated threaded rod 23 is rotated, the installation stability of the other three sets of bending heads 26 will not be affected, thus guaranteeing the practicality of the device.
[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. An adjustable bending action assembly for a bending machine, comprising: A lifting frame (1) is provided with a hydraulic cylinder (12) mounted on its upper side. Its features are: The bottom surface of the lifting frame (1) is provided with a sliding groove (11). The inner side of the lifting frame (1) is equipped with a knife holder structure (2). The knife holder structure (2) includes an adjusting roller (21). The adjusting roller (21) is movably installed on the inner side of the bottom end of the slide groove (11) through a bearing. An installation groove (22) is provided on the outer wall of the adjusting roller (21). A hand-rotating threaded rod (23) is movably installed inside the adjusting roller (21) through a bearing. A moving block (24) is slidably installed on the inner side of the installation groove (22). A plug (25) is welded to the end of the moving block (24). A bending cutter head (26) is inserted into the inner side of the installation groove (22). A slot (27) is provided at one end of the bending cutter head (26). Positioning grooves (28) are provided on both sides of the installation groove (22). A positioning rod (29) is slidably installed on the inner side of the slide groove (11).
2. The adjustable bending action assembly for a bending machine according to claim 1, wherein: The extended end of the hydraulic cylinder (12) is fixedly connected to the top surface of the lifting frame (1), and the top surface of the hydraulic cylinder (12) is fixedly connected to the machine body support.
3. The adjustable bending action assembly for a bending machine according to claim 1, wherein: The mounting groove (22) has four sets, and the four sets of mounting grooves (22) are evenly distributed on the surface of the adjusting roller (21). The middle part of the hand-rotated threaded rod (23) is located inside the mounting groove (22).
4. The adjustable bending action assembly for a bending machine of claim 1, wherein: The hand-rotating threaded rod (23) passes through the moving block (24) and is threadedly connected to the moving block (24).
5. The adjustable bending action component for a bending machine according to claim 1, characterized in that: The insert (25) passes through the bending head (26) via the slot (27), and the other end of the bending head (26) protrudes from the surface of the adjusting roller (21).
6. The adjustable bending action assembly for a bending machine of claim 1, wherein: The positioning rod (29) is engaged inside the positioning groove (28).
Citation Information
Patent Citations
Adjustable bending assembly for multifunctional bending machine
CN218532397U