A high-efficiency positioning tool for bending angles

CN224636326UActive Publication Date: 2026-08-14GUOHE GENERAL (QINGDAO) TEST & EVALUATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0003]但这些前沿科技方法设计及购置成本过大,对设备相应的精度要求也比较苛刻,其特性暂时不能满足现在实验室多规格及多种弯曲角度的弯曲试验检测需求,不方便工装与设备的快速安装,传统测量方法需要重复计算弯曲角度,导致试验效率降低,并且工装有一定的柔度,弯曲角度计算误差偏大

Benefits of technology

1)该定位弯曲角度工装,通过设置定位组件,弯曲角度支臂通过锁紧螺栓锁紧固定,实现工装与设备的快速安装,弯曲试验过程中角度测量误差在±1°以内,支持任意弯曲角度的精准测试,解决了传统测量方法需要重复计算弯曲角度,导致试验效率降低的技术难点,通过弯曲角度支臂的“L”状,保证工装对中度及安装稳定性。保证安全前提下,支臂设计加工至超薄,满足超薄试样弯曲测试也能准确定位角度。

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Abstract

This utility model relates to the field of static bending performance testing of metallic materials, and discloses a high-efficiency positioning bending angle fixture, including a loading component, a positioning component, and an adjusting component. The loading component includes two bending support rollers and a force-applying roller. A bending sample is placed on top of the two bending support rollers, and the positioning component is placed between the two bending support rollers. The positioning component has two bending angle support arms, each with a scale marked on its front. A locking bolt connects the two bending angle support arms, and grooves are formed on the outer rear ends of each of the two bending angle support arms. The bending angle support arms enable rapid sample installation and support accurate testing of any bending angle. The distance between the two bending support rollers can be easily adjusted using the adjusting rod and screw of the first adjusting seat, and a scale is provided on the front of the first adjusting seat to accommodate bending samples of different lengths and thicknesses.
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Description

Technical Field

[0001] This utility model relates to the field of static bending performance testing of metallic materials, specifically a high-efficiency tooling for positioning bending angles. Background Technology

[0002] In bending tests, there are various current methods for measuring bending angles. Intelligent testing technologies include projection methods, laser measurement methods, and digital measurement methods. However, these methods have high requirements for equipment accuracy and operation, which cannot be easily met. Overall, measurement methods are constantly improving, from traditional manual measurement to today's automation and intelligence. Their high precision and high efficiency can fully meet the accuracy and efficiency requirements of different scenarios.

[0003] However, these cutting-edge technologies and methods are too expensive to design and purchase, and they also have strict requirements for the accuracy of the equipment. Their characteristics cannot meet the current laboratory needs for bending tests of various specifications and bending angles. They are also inconvenient for the quick installation of tooling and equipment. Traditional measurement methods require repeated calculation of bending angles, which reduces the efficiency of the test. In addition, the tooling has a certain degree of flexibility, and the error in the calculation of bending angle is too large. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency positioning bending angle tool to solve the technical problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency positioning bending angle fixture includes a loading component, a positioning component, and an adjusting component. The top of the bending support roller of the loading component is used to place a bending sample. The loading component includes two bending support rollers and a force application roller. Two bending angle support arms are arranged between the two bending support rollers. The front of each of the two bending angle support arms is marked with scale lines. A locking bolt is connected between the two bending angle support arms. A groove is opened on the outer rear end of each of the two bending angle support arms.

[0006] Preferably, the two bending support rollers are located on the same horizontal line, and the force-applying roller is located directly above the two bending support rollers.

[0007] Preferably, the locking bolt passes through the interior of the two bending angle arms and is threaded to lock them, so that a fixed angle is formed between the two bending angle arms.

[0008] Preferably, the bending support roller is in close contact with the groove, and the cross-section of the bending angle support arm is arranged in an "L" shape.

[0009] Preferably, the adjustment assembly includes a first adjustment seat and a second adjustment seat. An adjustment rod is movably installed inside the first adjustment seat. A knob is fixedly connected to one end of the adjustment rod. Slider blocks are movably connected to both ends of the adjustment rod. A support plate is fixedly installed at the front of the slider. The front ends of the slider and the support plate are respectively movably installed at both ends of the bending support roller. A screw is movably installed inside the second adjustment seat. A lifting block is movably installed outside the screw. A motor is fixedly connected to the top of the lifting block. The motor is used to drive the screw to adapt to bending tests under different loads. The same support plate is fixedly installed at the front of the lifting block.

[0010] Preferably, the threads at both ends of the adjusting rod are arranged in opposite directions, and the slider and the adjusting rod are connected by a thread.

[0011] Preferably, the front ends of the lifting block and the support plate are movably connected to both ends of the force roller, and the lifting block and the screw are connected by a thread.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1) This positioning bending angle fixture, through the setting of positioning components, uses locking bolts to secure the bending angle support arm, enabling rapid installation of the fixture and equipment. During the bending test, the angle measurement error is within ±1°, supporting accurate testing of any bending angle. This solves the technical difficulty of traditional measurement methods that require repeated calculation of the bending angle, leading to reduced testing efficiency. The "L" shape of the bending angle support arm ensures the fixture's centering and installation stability. While ensuring safety, the support arm is designed and machined to be ultra-thin, allowing for accurate angle positioning even when testing ultra-thin samples.

[0013] 2) This positioning bending angle fixture, by setting an adjustment component, the adjustment rod drives the two bending support rollers to slide, and the screw drives the lifting and lowering of the force roller, so as to facilitate the adjustment of the distance between the two bending support rollers and can be used for bending samples of different lengths and thicknesses. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency positioning bending angle tool according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the positioning component in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the adjustment component in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the first adjusting seat in an embodiment of this utility model.

[0015] In the figure: 1. Bending sample; 2. Positioning component; 3. Adjustment component; 4. Bending support roller; 5. Force roller; 6. Bending angle support arm; 7. Scale line; 8. Locking bolt; 9. Groove; 10. First adjustment seat; 11. Second adjustment seat; 12. Adjustment rod; 13. Knob; 14. Slider; 15. Support plate; 16. Screw; 17. Lifting block; 18. Motor; 19. Loading component; 20. Scale. Detailed Implementation

[0016] 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.

[0017] Example 1 Combination Figures 1-4 A high-efficiency positioning bending angle tooling includes a positioning component 2, an adjustment component 3 and a loading component 19, wherein the top of the bending support roller 4 of the loading component 19 is used to place the bending sample 1.

[0018] See Figure 2 Furthermore, the loading assembly 19 includes two bending support rollers 4 and a force application roller 5. Two bending angle support arms 6 are arranged between the two bending support rollers 4. The front of each of the two bending angle support arms 6 is marked with a scale line 7. Locking bolts 8 are connected between the two bending angle support arms 6. Grooves 9 are provided on the outer side of each of the two bending angle support arms 6 near the rear end.

[0019] In the loading assembly 19, the two bending support rollers 4 are located on the same horizontal line, and the force roller 5 is located directly above the two bending support rollers 4. The two bending support rollers 4 are used to support the bending sample 1 and the bending angle support arm 6. The bending sample 1 is pressed down and bent for testing by the force roller 5.

[0020] The locking bolt 8 passes through the inside of the two bending angle support arms 6 and is threaded to lock them. An angle is formed between the two bending angle support arms 6. The locking bolt 8 locks the angle of the bending angle support arm 6 after rotation by sliding the thread, so as to facilitate the adjustment and fixation of the angle of the bending angle support arm 6.

[0021] The bending support roller 4 and the groove 9 fit together. The cross-section of the bending angle support arm 6 is set in an "L" shape. The groove 9 part of the bending angle support arm 6 is pushed onto the bending support roller 4 and adjusted by the scale line 7 to be in the center position on the bending support roller 4.

[0022] Specifically, the groove 9 of the bending angle support arm 6 is pushed onto the bending support roller 4, and the bending sample 1 is placed in the center on the two bending support rollers 4. The test is conducted by pressing down with the force roller 5. When the bending sample 1 coincides with the bending angle support arm 6, the bending angle of the bending sample 1 will meet the test bending angle requirements.

[0023] Example 2

[0024] See Figure 3 and Figure 4 Furthermore, based on Embodiment 1, the adjustment assembly 3 includes a first adjustment seat 10 and a second adjustment seat 11. An adjustment rod 12 is movably installed inside the first adjustment seat 10. A knob 13 is fixedly connected to one end of the adjustment rod 12. A slider 14 is movably connected to both ends of the adjustment rod 12. A support plate 15 is fixedly installed at the front of the slider 14. The front ends of the slider 14 and the support plate 15 are movably installed at both ends of the bending support roller 4, respectively. A screw 16 is movably installed inside the second adjustment seat 11. A lifting block 17 is movably installed outside the screw 16. A motor 18 is fixedly installed at the top of the lifting block 17. The same support plate 15 is fixedly installed at the front of the lifting block 17.

[0025] The threads at both ends of the adjusting rod 12 are arranged in opposite directions. The slider 14 is threadedly connected to the adjusting rod 12. The two sliders 14 slide through the threads of the adjusting rod 12 to adjust the distance between the two curved support rollers 4.

[0026] The front ends of the lifting block 17 and the support plate 15 are movably connected to both ends of the force roller 5. The lifting block 17 is threadedly connected to the screw 16. The lifting block 17 slides up and down through the screw 16 to adjust the downward pressure height of the force roller 5.

[0027] Specifically, the adjusting rod 12 drives the two sliders 14 to slide inward or outward to adjust the distance between the two bending support rollers 4 so as to facilitate testing of different bending angles. The screw 16 drives the lifting block 17 and the force roller 5 to descend to fit with the bending sample 1, so that the bending sample 1 is subjected to force and bent to test the bending angle.

[0028] In actual operation, carefully inspect the bending sample 1 and measure its size, mark the center of the sample, adjust the distance between the two bending support rollers 4, and adjust it by the scale 20 at the front of the first adjustment seat 10. The bending angle support arm 6 is calibrated to the target angle and placed on the bending support roller 4. The bending angle test is carried out by the force roller 5 being in contact with the bending sample 1. During positioning and testing, the target angle is calibrated using a universal angle gauge. Two bending angle support arms 6 are placed on two bending support rollers 4, and the included angle between the legs of the two bending angle support arms 6 is adjusted. The groove 9 part of the bending angle support arm 6 is pushed into the bending support roller 4. The bending angle support arm 6 is adjusted through the scale line 7 so that it is centered on the bending support roller 4. Then, the bending sample 1 is placed in the center on the two bending support rollers 4. The force roller 5 is slowly lowered to make it fit the bending sample 1 and press down. After the test starts, the degree of fit between the bending sample 1 and the bending angle support arm 6 is carefully observed. When the bending sample 1 and the bending angle support arm 6 coincide, the test is stopped. At this time, the bending angle of the bending sample 1 under the force will meet the bending angle requirements of the test. During adjustment, select the appropriate force roller 5 according to the product material acceptance specifications, and adjust the spacing of the bending support roller 4 according to the standard testing method. By rotating the knob 13, the adjusting rod 12 drives the two sliders 14 to slide inward or outward. The two ends of the bending support roller 4 are movably connected to the front end of the slider 14 and the support plate 15, respectively. The spacing between the two bending support rollers 4 is adjusted by sliding the slider 14 to facilitate testing of different bending angles. By starting the motor 18, the screw 16 drives the lifting block 17 to slide downward, thereby driving the force roller 5 to descend to fit against the bending sample 1, so that the bending sample 1 is subjected to force and bent to test the bending angle.

[0029] By setting the positioning component 2, the bending angle support arm 6 is locked and fixed by the locking bolt 8, realizing the quick installation of the tooling and equipment. During the bending test, the angle measurement error is within ±1°, supporting accurate testing of any bending angle. This solves the technical difficulty of the traditional measurement method requiring repeated calculation of the bending angle, which leads to reduced test efficiency. The "L" shape of the bending angle support arm 6 ensures the centering of the tooling and the stability of the installation. By setting the adjustment component 3, the adjustment rod 12 drives the two bending support rollers 4 to slide, and the screw 16 drives the lifting and lowering of the force roller 5, which facilitates the adjustment of the distance between the two bending support rollers 4 and can be used for bending samples 1 of different lengths and thicknesses.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency positioning bending angle tool, characterized in that: It includes a positioning component (2), an adjustment component (3), and a loading component (19), the loading component (19) having a bending support roller (4) above it for placing a bent sample (1). The loading component (19) includes two bending support rollers (4) and a force application roller (5). The positioning component (2) consists of two bending angle support arms (6) arranged between the bending support rollers (4). The front of each of the two bending angle support arms (6) is marked with scale lines (7). Each of the two bending angle support arms (6) is connected with a locking bolt (8). The outer side of each of the two bending angle support arms (6) is provided with a groove (9) near the rear end.

2. The high-efficiency positioning and bending angle tooling according to claim 1, characterized in that: The two curved support rollers (4) are located on the same horizontal line, and the force roller (5) is located directly above the center between the two curved support rollers (4).

3. The high-efficiency positioning and bending angle tooling according to claim 1, characterized in that: The locking bolt (8) passes through the interior of the two curved angle arms (6) and is threaded and locked, forming an angle between the two curved angle arms (6).

4. The high-efficiency positioning and bending angle tooling of claim 1, wherein: The bending support roller (4) and the groove (9) fit together, and the cross-section of the bending angle support arm (6) is set in an "L" shape.

5. The high-efficiency positioning and bending angle tooling of claim 1, wherein: The adjustment assembly (3) includes a first adjustment seat (10) and a second adjustment seat (11). An adjustment rod (12) is movably installed inside the first adjustment seat (10). A knob (13) is fixedly connected to one end of the adjustment rod (12). A slider (14) is movably connected to both ends of the adjustment rod (12). A support plate (15) is fixedly installed at the front of the slider (14). The front ends of the slider (14) and the support plate (15) are movably installed at both ends of the bending support roller (4). A screw (16) is movably installed inside the second adjustment seat (11). A lifting block (17) is movably installed outside the screw (16). A motor (18) is fixedly connected to the top of the lifting block (17). The same support plate (15) is fixedly installed at the front of the lifting block (17). A scale (20) is on the front of the first adjustment seat (10) to meet the requirements of quickly positioning the bending span. The motor (18) is used to drive the screw (16).

6. The high-efficiency positioning and bending angle tooling of claim 5, wherein: The threads at both ends of the adjusting rod (12) are arranged in opposite directions, and the slider (14) and the adjusting rod (12) are connected by a thread.

7. The high-efficiency positioning and bending angle tooling of claim 5, wherein: The front ends of the lifting block (17) and the support plate (15) are movably connected to both ends of the force roller (5), and the lifting block (17) and the screw (16) are threadedly connected; the front ends of the slider (14) and the support plate (15) are movably connected to both ends of the bending support roller (4), and the adjusting rod (12) and the knob (13) are threadedly connected.