A bending auxiliary tool mechanism, a bending tool device, and a bending machine

CN224794337UActive Publication Date: 2026-09-25GUANGDONG LITANG MASCH TECH CO LTD
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Patent Information

Application Number
CN202521902766.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-03
Publication Date
2026-09-25
Estimated Expiration
2035-09-03

AI Technical Summary

Technical Problem

[0003]然而,该结构存在以下缺点:1、折弯辅刀和连接板之间存在一定的间隙,无法给折弯辅刀提供足够的支撑力,造成折弯辅刀的折弯力不足,折弯力小

Benefits of technology

[0023]本实用新型折弯辅刀机构的辅刀安装座和辅刀固定连接,辅刀安装座给辅刀提供足够的支撑力,增加了辅刀的强度,使辅刀的折弯力大,折弯效果好,也延长了辅刀的使用寿命。同时,弹性组件设置在辅刀安装座上,避免因弹性部件设置在辅刀上而破坏了辅刀的整体结构,使得辅刀的强度低,进一步保证了辅刀的强度,从而确保辅刀的折弯力。

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Abstract

The utility model relates to the field of bending knife, especially a kind of bending auxiliary knife mechanism and bending knife device and bending machine, including auxiliary knife support and install on auxiliary knife support auxiliary knife driving mechanism, auxiliary knife sliding seat, auxiliary knife mounting seat and auxiliary knife, the auxiliary knife driving mechanism and auxiliary knife sliding seat connection, to drive auxiliary knife sliding seat moves on auxiliary knife support;The auxiliary knife mounting seat and auxiliary knife sliding seat movably connected, the auxiliary knife mounting seat and auxiliary knife fixed connection;Elastic assembly is equipped on the auxiliary knife mounting seat, and the elastic assembly is respectively with auxiliary knife mounting seat and auxiliary knife sliding seat and touches, to make the auxiliary knife moves in specific path. Adopt the utility model, high strength, bending force is big.
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Description

Technical Field

[0001] This utility model relates to the field of bending knives, and in particular to a bending auxiliary knife mechanism, a bending knife device, and a bending machine. Background Technology

[0002] A bending machine is a machine for bending sheet metal, consisting of a main bending cutter and an auxiliary bending cutter. The auxiliary bending cutter, as a supplement or improvement to the main bending cutter, enables partial bending of sheet metal under various complex working conditions that are difficult for the main bending cutter to perform. Currently, the auxiliary bending cutter is mounted on a connecting plate and can move along the connecting plate. When the auxiliary bending cutter moves to the main bending cutter, it uses the support of the main bending cutter and the connecting plate to perform partial bending of the sheet metal. A spring-loaded clamping assembly is installed inside the auxiliary bending cutter. This assembly acts on the connecting plate to push the auxiliary bending cutter open, preventing interference with the main bending cutter during movement and ensuring that the two cutters move without interference during relative motion.

[0003] However, this structure has the following drawbacks: 1. A certain gap exists between the bending auxiliary blade and the connecting plate, which cannot provide sufficient support for the bending auxiliary blade, resulting in insufficient bending force and a small bending force. 2. Under the action of the spring-loaded clamping assembly, the local friction between the bending auxiliary blade and the connecting plate increases, increasing the resistance to the movement of the bending auxiliary blade; long-term use will cause severe wear on the bending auxiliary blade and the connecting plate, shortening their service life. 3. The spring-loaded clamping assembly reduces the strength of the bending auxiliary blade, resulting in not only a small bending force but also a short service life. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a bending auxiliary knife mechanism with high strength and large bending force.

[0005] The technical problem to be solved by this utility model is to provide a bending knife device including the bending auxiliary knife mechanism.

[0006] The technical problem to be solved by this utility model is to provide a bending machine including the bending knife device.

[0007] To solve the above-mentioned technical problems, this utility model provides a bending auxiliary knife mechanism, including an auxiliary knife support and an auxiliary knife driving mechanism, an auxiliary knife slide, an auxiliary knife mounting base and an auxiliary knife mounted on the auxiliary knife support. The auxiliary knife driving mechanism and the auxiliary knife slide are connected to drive the auxiliary knife slide to move on the auxiliary knife support.

[0008] The auxiliary blade mounting base and the auxiliary blade slide are movably connected, and the auxiliary blade and the auxiliary blade are fixedly connected; the auxiliary blade mounting base is provided with an elastic component, which abuts against the auxiliary blade mounting base and the auxiliary blade slide respectively, so that the auxiliary blade moves within a preset path.

[0009] As an improvement to the above solution, the auxiliary blade slide is provided with a movable part, the auxiliary blade mounting seat is sleeved on the movable part, and there is a certain gap between the auxiliary blade mounting seat and the auxiliary blade slide, so that the auxiliary blade mounting seat can rotate around the movable part.

[0010] As an improvement to the above solution, the auxiliary knife mounting base is provided with a top opening groove, the top opening groove is located on the side of the auxiliary knife mounting base near the auxiliary knife, and the elastic component is located in the top opening groove;

[0011] The elastic component includes an elastic element and a rolling element, and the auxiliary blade mounting base, the elastic element, the rolling element and the auxiliary blade slide block abut against each other in sequence.

[0012] As an improvement to the above solution, the auxiliary knife mounting base is provided with a positioning post, the auxiliary knife is provided with a positioning groove, and the positioning post is embedded in the positioning groove.

[0013] As an improvement to the above solution, the auxiliary knife mounting base and the auxiliary knife are fixedly connected by an auxiliary knife clamping block.

[0014] As an improvement to the above solution, the auxiliary tool driving mechanism is connected to the auxiliary tool slide via a transmission assembly;

[0015] The transmission assembly includes a transmission wheel and a transmission belt. The auxiliary blade driving mechanism drives the transmission belt to move through the transmission wheel. The transmission belt is connected to the auxiliary blade slide to drive the auxiliary blade slide to move.

[0016] As an improvement to the above solution, a guide assembly is also included. The guide assembly includes an auxiliary knife guide rail and an auxiliary knife slider. The auxiliary knife guide rail is fixedly installed on the auxiliary knife bracket, and the auxiliary knife slider can slide along the auxiliary knife guide rail. The auxiliary knife slider and the auxiliary knife slide are fixedly connected.

[0017] The auxiliary blade support is provided with blocking blocks on both sides to limit the movement range of the auxiliary blade slider.

[0018] Accordingly, this utility model also provides a bending knife device, including a knife holder, a main knife and the aforementioned bending auxiliary knife mechanism, wherein the main knife and the auxiliary knife support are fixedly installed on the knife holder; a certain distance is left between the main knife and the auxiliary knife.

[0019] As an improvement to the above solution, the auxiliary blade is provided with a limiting part, and the main blade can abut against the limiting part.

[0020] Accordingly, this utility model also provides a bending machine, including a machine body, a bending knife driving device and the above-mentioned bending knife device, wherein the bending knife driving device is mounted on the machine body and the bending knife device is mounted on the bending knife driving device;

[0021] The bending cutter drive device includes an X-axis drive device and a Y-axis drive device, and the bending cutter device is mounted on the Y-axis drive device; the X-axis drive device drives the Y-axis drive device to move along the X-axis, and the Y-axis drive device drives the bending cutter device to move along the Y-axis.

[0022] The following are the beneficial effects of implementing this utility model:

[0023] In this utility model, the auxiliary blade mounting base and the auxiliary blade are fixedly connected in a bending auxiliary blade mechanism. The auxiliary blade mounting base provides sufficient support for the auxiliary blade, increasing its strength, resulting in a large bending force, good bending effect, and extended service life. Simultaneously, the elastic component is mounted on the auxiliary blade mounting base, preventing damage to the overall structure of the auxiliary blade due to its placement, thus ensuring its strength and guaranteeing its bending force. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the bending auxiliary knife mechanism of this utility model;

[0025] Figure 2 yes Figure 1 A sectional view;

[0026] Figure 3 yes Figure 2 Enlarged view of the elastic component section;

[0027] Figure 4 This is a schematic diagram of the bending knife device of this utility model;

[0028] Figure 5 yes Figure 4 A sectional view;

[0029] Figure 6 This is a structural schematic diagram of the bending machine of this utility model. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0031] See Figure 1-5 This utility model discloses a bending auxiliary knife mechanism 100, including an auxiliary knife support 1 and an auxiliary knife driving mechanism 2, an auxiliary knife slide 5, an auxiliary knife mounting base 4 and an auxiliary knife 3 mounted on the auxiliary knife support 1. The auxiliary knife driving mechanism 2 and the auxiliary knife slide 5 are connected to drive the auxiliary knife slide 5 to move on the auxiliary knife support 1.

[0032] The auxiliary blade mounting base 4 and the auxiliary blade slide 5 are movably connected, while the auxiliary blade mounting base 4 and the auxiliary blade 3 are fixedly connected. The auxiliary blade mounting base 4 is equipped with an elastic component, which abuts against both the auxiliary blade mounting base 4 and the auxiliary blade slide 5, allowing the auxiliary blade 3 to move within a preset path. The auxiliary blade slide drives the auxiliary blade mounting base and the auxiliary blade to move, with the auxiliary blade moving along the preset path under the action of the elastic component, avoiding interference with the main blade.

[0033] In this utility model, the auxiliary blade mounting base and the auxiliary blade are fixedly connected in a bending auxiliary blade mechanism. The auxiliary blade mounting base provides sufficient support for the auxiliary blade, increasing its strength, resulting in a large bending force, good bending effect, and extended service life. Simultaneously, the elastic component is mounted on the auxiliary blade mounting base, preventing damage to the overall structure of the auxiliary blade due to its placement, thus ensuring its strength and guaranteeing its bending force.

[0034] It should be noted that the "preset path" refers to the path along which the auxiliary blade will not interfere with the main blade during relative movement, and part of this path is located in front of the main blade's cutting head. In other words, under the action of the elastic component, the auxiliary blade moves along the preset path, and can move to the front of the main blade's cutting head, i.e., the main blade's working area, ensuring that the auxiliary blade can perform partial bending of the sheet metal.

[0035] Preferably, such as Figure 3 , 5 As shown, the auxiliary blade slide 5 is provided with a movable component 7, and the auxiliary blade mounting seat 4 is sleeved on the movable component 7. A certain gap exists between the auxiliary blade mounting seat 4 and the auxiliary blade slide 5, allowing the auxiliary blade mounting seat 4 to rotate around the movable component 7. The movable component 7 is preferably a rotating shaft. The certain gap between the auxiliary blade mounting seat and the auxiliary blade slide ensures that the auxiliary blade can rotate around the movable component. The movable component ensures a reliable connection between the auxiliary blade mounting seat and the auxiliary blade slide. Simultaneously, the rotation of the auxiliary blade mounting seat around the movable component reduces the possibility of jamming between the auxiliary blade mounting seat and the auxiliary blade slide, and also reduces friction between them, making the movement of the auxiliary blade mounting seat (i.e., the auxiliary blade) smoother.

[0036] Specifically, such as Figure 3 As shown, the auxiliary blade mounting base 4 is provided with a top opening groove 41, which is located on the side of the auxiliary blade mounting base 4 near the auxiliary blade 3. The elastic component is located within the top opening groove 41. The opening of the top opening groove 41 faces the auxiliary blade slide 5. The top opening groove 41 is located between the movable part 7 and the blade head of the auxiliary blade 3.

[0037] like Figure 3As shown, the elastic component includes an elastic element 8 and a rolling element 9. The auxiliary blade mounting base 4, the elastic element 8, the rolling element 9, and the auxiliary blade slide 5 sequentially abut against each other. The elastic element 8 is preferably a spring, and the rolling element 9 is preferably a ball bearing. One end of the elastic element 8 abuts against the auxiliary blade mounting base 4, and the other end abuts against the rolling element 9. The auxiliary blade opens at a certain angle under the action of the elastic element, so that the auxiliary blade moves within a preset path. The elastic element abuts against the auxiliary blade slide through the rolling element. The rolling element reduces the friction between the elastic element and the auxiliary blade slide, and also prevents them from getting stuck, making the movement of the auxiliary blade mounting base smoother.

[0038] Preferably, such as Figure 2 , 5 As shown, the auxiliary blade mounting base 4 and the auxiliary blade 3 are fixedly connected by the auxiliary blade clamping block 6. The auxiliary blade clamping block presses the auxiliary blade onto the auxiliary blade mounting base, ensuring that the auxiliary blade clamping block and the auxiliary blade mounting base are fixed and reliable, without relative displacement, and ensuring that the auxiliary blade mounting base provides sufficient support force to the auxiliary blade, thereby ensuring the bending force of the auxiliary blade.

[0039] Better, such as Figure 3 As shown, the auxiliary blade mounting base 4 is provided with a positioning post 42, and the auxiliary blade 3 is provided with a positioning groove 31. The positioning post 42 is embedded in the positioning groove 31. The cooperation between the positioning post and the positioning groove ensures that the relative positions of the auxiliary blade mounting base and the auxiliary blade are fixed, avoiding relative displacement between the auxiliary blade mounting base and the auxiliary blade, which would prevent the auxiliary blade mounting base from providing sufficient support to the auxiliary blade, thereby ensuring the strength and bending force of the auxiliary blade.

[0040] Furthermore, such as Figure 1 , 4 As shown, the auxiliary blade driving mechanism 2 is connected to the auxiliary blade slide 5 via a transmission assembly. The transmission assembly includes a transmission wheel and a transmission belt (not shown in the figure). The auxiliary blade driving mechanism 2 drives the transmission belt to move via the transmission wheel. The transmission belt is connected to the auxiliary blade slide 5 to move the auxiliary blade slide 5. The auxiliary blade driving mechanism includes a servo motor and a reducer. The auxiliary blade driving mechanism drives the auxiliary blade slide, auxiliary blade mounting base, and auxiliary blade to move on the auxiliary blade support via the transmission assembly. Specifically, the transmission wheel includes a driving wheel 21, a tensioning wheel 22, and a driven wheel 23. The auxiliary blade driving mechanism 2 drives the driving wheel 21 to rotate. The tensioning wheel 22 and the driven wheel 23 tension and support the transmission belt, causing the transmission belt to move under the support of the transmission wheel, thereby driving the auxiliary blade slide, auxiliary blade mounting base, and auxiliary blade to move on the auxiliary blade support. The auxiliary blade driving mechanism, transmission wheel, and transmission belt can adopt existing connection structures, which will not be described in detail here.

[0041] Preferably, such as Figure 2 , 5As shown, this utility model also includes a guide assembly, which includes an auxiliary blade guide rail 24 and an auxiliary blade slider 25. The auxiliary blade guide rail 24 is fixedly installed on the auxiliary blade bracket 1, and the auxiliary blade slider 25 can slide along the auxiliary blade guide rail 24. The auxiliary blade slider 25 and the auxiliary blade slide block 5 are fixedly connected. The auxiliary blade guide rail and the auxiliary blade slider cooperate to allow the auxiliary blade slide block, the auxiliary blade mounting base, and the auxiliary blade to move in a predetermined direction without deviation, thereby ensuring that the auxiliary blade can smoothly perform local bending of the sheet metal.

[0042] Better, such as Figure 1 , 4 As shown, the auxiliary blade support 1 has blocking blocks 26 on both sides to limit the movement range of the auxiliary blade slider 25. The blocking blocks prevent the auxiliary blade slider from disengaging from the auxiliary blade guide rail and limit its movement on the guide rail, further ensuring that the auxiliary blade can smoothly perform local bending of the sheet metal.

[0043] Accordingly, see Figure 1-5 This utility model also discloses a bending knife device 200, including a knife holder 10, a main knife 11, and the aforementioned bending auxiliary knife mechanism 100. The main knife 11 and the auxiliary knife support 1 are fixedly installed on the knife holder 10, and a certain distance is left between the main knife 11 and the auxiliary knife 3. The auxiliary knife 3 moves to the main knife 11 within a preset path, so that the head of the main knife 11 corresponds to the auxiliary knife 3, and a certain distance is left between the main knife 11 and the auxiliary knife 3 to avoid interference between the two knives during relative movement. The specific structure of the bending auxiliary knife mechanism 100 is as described above and will not be repeated here.

[0044] When the auxiliary blade performs partial bending on the sheet metal, the main blade and the auxiliary blade collide. Simultaneously, the auxiliary blade mounting base rotates around the moving part and presses against the elastic component. At this time, the auxiliary blade slide, auxiliary blade mounting base, and main blade provide sufficient support to the auxiliary blade, increasing its strength and allowing for effective partial bending. At this point, the distance between the main blade and the auxiliary blade is zero. When the auxiliary blade completes the bending and separates from the sheet metal, it resets under the action of the elastic component, and the main blade and auxiliary blade separate, with the distance between them greater than zero. Driven by the auxiliary blade drive mechanism, the auxiliary blade moves out of the main blade's working area; at this point, the two blades do not interfere with each other.

[0045] The tool holder 10 is C-shaped. The main tool 11 includes an upper main tool and a lower main tool, and the auxiliary tool 3 includes an upper auxiliary tool and a lower auxiliary tool. The upper main tool and the upper auxiliary tool are both installed on the top of the tool holder, and the lower main tool and the lower auxiliary tool are both installed on the bottom of the tool holder 10.

[0046] Preferably, such as Figure 2As shown, the auxiliary blade 3 is provided with a limiting part 32, and the main blade 11 can abut against the limiting part 32. The limiting part ensures that the main blade can effectively abut against the auxiliary blade, and the main blade can provide effective support to the auxiliary blade, preventing the main blade from slipping and ensuring that the main blade effectively abuts against the auxiliary blade. Specifically, the blade tip of the main blade 11 can abut against the limiting part 32.

[0047] Accordingly, see Figure 1-6 This utility model also discloses a bending machine, including a machine body 12, a bending cutter drive device, and the aforementioned bending cutter device 200. The bending cutter drive device is mounted on the machine body 12, and the bending cutter device 200 is mounted on the bending cutter drive device. The specific structure of the bending cutter device 200 is as described above and will not be repeated here.

[0048] like Figure 6 As shown, the bending cutter drive device includes an X-axis drive device 13 and a Y-axis drive device 14, with the bending cutter device 200 mounted on the Y-axis drive device 14. The X-axis drive device 13 drives the Y-axis drive device 14 to move along the X-axis, and the Y-axis drive device 14 drives the bending cutter device 200 to move along the Y-axis. The bending cutter device moves under the combined drive of the X-axis and Y-axis drive devices, enabling the main cutter and auxiliary cutter to bend the sheet metal fixed to the machine body.

[0049] In summary, this utility model provides a bending auxiliary knife mechanism, a bending knife device, and a bending machine, which have high strength and large bending force.

[0050] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A bending auxiliary knife mechanism, characterized in that, It includes an auxiliary knife support, an auxiliary knife drive mechanism, an auxiliary knife slide, an auxiliary knife mounting base, and an auxiliary knife mounted on the auxiliary knife support. The auxiliary knife drive mechanism and the auxiliary knife slide are connected to drive the auxiliary knife slide to move on the auxiliary knife support. The auxiliary blade mounting base and the auxiliary blade slide are movably connected, and the auxiliary blade and the auxiliary blade are fixedly connected; the auxiliary blade mounting base is provided with an elastic component, which abuts against the auxiliary blade mounting base and the auxiliary blade slide respectively, so that the auxiliary blade moves within a preset path.

2. The bending auxiliary knife mechanism as described in claim 1, characterized in that, The auxiliary blade slide is provided with a movable part, and the auxiliary blade mounting seat is sleeved on the movable part. There is a certain gap between the auxiliary blade mounting seat and the auxiliary blade slide, so that the auxiliary blade mounting seat can rotate around the movable part.

3. The bending auxiliary knife mechanism as described in claim 1, characterized in that, The auxiliary blade mounting base is provided with a top opening groove, which is located on the side of the auxiliary blade mounting base near the auxiliary blade, and the elastic component is located in the top opening groove; The elastic component includes an elastic element and a rolling element, and the auxiliary blade mounting base, the elastic element, the rolling element and the auxiliary blade slide block abut against each other in sequence.

4. The bending auxiliary knife mechanism as described in claim 1, characterized in that, The auxiliary blade mounting base is provided with a positioning post, and the auxiliary blade is provided with a positioning groove, with the positioning post embedded in the positioning groove.

5. The bending auxiliary knife mechanism as described in claim 1, characterized in that, The auxiliary blade mounting base and the auxiliary blade are fixedly connected by an auxiliary blade clamping block.

6. The bending auxiliary knife mechanism as described in claim 1, characterized in that, The auxiliary blade driving mechanism is connected to the auxiliary blade slide via a transmission component; The transmission assembly includes a transmission wheel and a transmission belt. The auxiliary blade driving mechanism drives the transmission belt to move through the transmission wheel. The transmission belt is connected to the auxiliary blade slide to drive the auxiliary blade slide to move.

7. The bending auxiliary knife mechanism as described in any one of claims 1-6, characterized in that, It also includes a guide assembly, which includes an auxiliary knife guide rail and an auxiliary knife slider. The auxiliary knife guide rail is fixedly installed on the auxiliary knife bracket, and the auxiliary knife slider can slide along the auxiliary knife guide rail. The auxiliary knife slider and the auxiliary knife slide are fixedly connected. The auxiliary blade support is provided with blocking blocks on both sides to limit the movement range of the auxiliary blade slider.

8. A bending knife device, characterized in that, It includes a tool holder, a main blade, and a bending auxiliary blade mechanism as described in any one of claims 1-7, wherein the main blade and the auxiliary blade support are fixedly installed on the tool holder; a certain distance is left between the main blade and the auxiliary blade.

9. The bending knife device as described in claim 8, characterized in that, The auxiliary blade is provided with a limiting part, and the main blade can abut against the limiting part.

10. A bending machine, characterized in that, It includes a body, a bending cutter drive device, and a bending cutter device as described in any one of claims 8-9, wherein the bending cutter drive device is mounted on the body, and the bending cutter device is mounted on the bending cutter drive device; The bending cutter drive device includes an X-axis drive device and a Y-axis drive device, and the bending cutter device is mounted on the Y-axis drive device; The X-axis drive device drives the Y-axis drive device to move along the X-axis, and the Y-axis drive device drives the bending knife device to move along the Y-axis.