Device for detecting bending strength of automobile parts
By designing a rotation and detection mechanism, and utilizing worm gear linkage and clamping components for fixation, the problem of existing devices being unable to perform comprehensive testing was solved. This enabled the detection of bending strength at different locations of components, improving the testing effect and accuracy.
Patent Information
- Application Number
- CN202511750109.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-01-27
AI Technical Summary
Existing automotive component bending strength testing devices cannot test different locations on the components, resulting in reduced testing effectiveness.
A device for testing the bending strength of automotive parts, including a rotating mechanism and a detection mechanism, was designed. The part is rotated by the linkage of a worm gear, a worm wheel and a pulley set, and the part is fixed by a clamping component. The detection of different positions is achieved by combining the movement of a threaded rod and a sliding plate.
It enables the testing of bending strength at different locations of automotive parts, improving the testing results and data accuracy, and preventing parts from shifting during the testing process.
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Figure CN121409765A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive parts technology, specifically to a device for testing the bending strength of automotive parts. Background Technology
[0002] Currently, against the backdrop of rapid evolution of core technologies and reshaping of the supply chain in the automotive industry, my country's auto parts industry is developing steadily. The rapid increase in the penetration rate of new energy vehicles has also driven the expansion of auto parts towards electrification, intelligence, and lightweighting. A number of high-quality domestic enterprises have emerged in the auto parts industry, not only ranking among the top in the domestic market but also going global, entering the international market, and participating in global competition, demonstrating strong vitality.
[0003] Patent announcement number CN 217954150 U discloses a device for testing the bending strength of automotive parts, including a fixed frame, a top plate fixedly connected to the top of the fixed frame, a support plate provided between the top plate and the fixed frame, a hydraulic rod fixedly connected to the bottom of the top plate, a pressure rod fixedly connected to the output end of the hydraulic rod, pads fixedly connected to both sides of the top of the fixed frame, a bracket fixedly connected to one side of the top of the top plate, and a protective cloth fixedly connected to one side of the bracket. A rectangular opening is opened on one side of the protective cloth, a transparent plastic sheet is fixedly connected to the rectangular opening of the protective cloth, a clip is fixedly connected to one side of the protective cloth, and a strip groove is opened on one side of the top of the top plate.
[0004] The applicant believes that the following drawbacks exist: the automotive parts bending strength testing device does not have the function of rotating the automotive parts during the testing process, which means that it cannot test different positions of the automotive parts and reduces the effectiveness of the automotive parts testing. Summary of the Invention
[0005] The purpose of this invention is to provide a device for testing the bending strength of automotive parts, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for testing the bending strength of automotive parts, comprising a support base, a rotating mechanism disposed on the top left side of the support base, and a testing mechanism disposed on the top right side of the support base;
[0007] The rotating mechanism includes a connecting bearing, which is fixedly connected to the top left side of the support base. A gear ring is fixedly connected to the inner ring of the connecting bearing, and a spur gear meshes inside the gear ring. A rotating rod is fixedly connected to the inner ring of the spur gear. A worm gear is fixedly connected to the surface of the rotating rod, and a worm is meshed on the surface of the worm gear. A pulley set is connected between the two worms for transmission.
[0008] Preferably, a positioning plate is rotatably connected to the surface of the rotating rod, and a support frame is fixedly connected to both sides of the positioning plate. The support frame is fixedly connected to the surface of the support base. The rotating rod is rotatably connected through the positioning plate and then fixed to the support base by the support frame, providing stable support for the rotating rod and preventing it from shaking when driving the worm gear to rotate.
[0009] Preferably, a fixing frame is rotatably connected to the surface of the worm gear. The fixing frame is fixedly connected to the top left side of the support base, fixed on the support base and rotatably connected to the worm gear, restricting the radial displacement of the worm gear, ensuring that the worm gear and worm wheel are always precisely meshed, and avoiding transmission failure.
[0010] Preferably, one end of the worm gear is fixedly connected to a first motor, and a mounting frame is fixedly connected to the bottom of the first motor. The mounting frame is fixedly connected to the left side of the support base. The first motor provides a power source for the worm gear, driving the two worm gears to rotate synchronously through a pulley set. The mounting frame fixes the first motor to ensure the stability of the motor during operation and to avoid vibration affecting the transmission accuracy.
[0011] Preferably, a fixing member is fixedly connected to the surface of the toothed ring, and a cylinder is fixedly connected to the side of the fixing member opposite to the toothed ring. A clamping plate is fixedly connected to the side of the cylinder opposite to the fixing member. Two clamping plates are provided, and the two clamping plates are symmetrically arranged. The fixing member is fixed to the surface of the toothed ring and serves as the mounting carrier for the cylinder. The cylinder can push the clamping plates to move through its extension and retraction action. The two symmetrically arranged clamping plates can clamp the parts from both sides to prevent the parts from loosening or falling off during the testing process and to ensure accurate bending force points.
[0012] Preferably, the detection mechanism includes a threaded rod rotatably connected to the surface of a support base. A sliding plate is threadedly connected to the surface of the threaded rod, and a second support member is fixedly connected to the top of the sliding plate. A detection head is fixedly connected inside the second support member. When the threaded rod rotates, it can drive the sliding plate threadedly connected to the surface to move laterally. The second support member at the top of the sliding plate fixes the detection head, realizing the horizontal position adjustment of the detection head, which is convenient for aligning different bending detection points of the parts.
[0013] Preferably, guide rods are slidably connected to both sides of the bottom of the sliding plate, and a horizontal plate is fixedly connected to the surface of the guide rod. A first support member is fixedly connected to the side of the horizontal plate near the threaded rod. The first support member is fixedly connected to the top of the support base and rotatably connected to the top of the support base. The guide rods restrict the movement direction of the sliding plate to prevent it from deviating as the threaded rod rotates, ensuring that the sliding plate moves smoothly. The horizontal plate and the first support member fix the guide rod and the threaded rod respectively, further improving the overall structural stability of the detection mechanism.
[0014] Preferably, a second motor is fixedly connected to the right side of the threaded rod, and a mounting bracket is fixedly connected to the surface of the second motor. The mounting bracket is fixedly connected to the right side of the support base. The second motor provides power for the rotation of the threaded rod, realizing the automatic adjustment of the position of the detection head. The mounting bracket fixes the second motor, avoiding the vibration of the motor from affecting the rotation accuracy of the threaded rod, and indirectly ensuring the accurate positioning of the detection head.
[0015] Compared with the prior art, the present invention provides a device for testing the bending strength of automotive parts, which has the following advantages:
[0016] 1. This automotive parts bending strength testing device, under the linkage of the pulley assembly, can drive the worm gears and worm wheels on both sides to rotate synchronously. At this time, the gear rings and flat gears on both sides rotate synchronously and drive the automotive parts to rotate. It can test the bending strength of different positions of the automotive parts, thus improving the effect of testing the bending strength of automotive parts.
[0017] 2. This automotive component bending strength testing device can clamp and fix automotive components through clamping parts on both sides, avoiding the phenomenon of displacement of automotive components during the bending strength testing process, which would affect the accuracy of the bending strength test data.
[0018] 3. This automotive parts bending strength testing device can drive a sliding plate to move closer to the automotive parts during the rotation of the threaded rod, thereby achieving the purpose of testing the bending strength of the automotive parts. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from an oblique angle.
[0022] Figure 3 This is a schematic diagram of the rotating mechanism of the present invention;
[0023] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0024] Figure 5 This is a schematic diagram of the rotating mechanism of the present invention;
[0025] Figure 6 This is a schematic diagram of the testing mechanism of the present invention.
[0026] In the diagram: 1. Support base; 2. Rotating mechanism; 21. Connecting bearing; 22. Clamping plate; 23. Worm gear; 24. Support frame; 25. Positioning plate; 26. Gear ring; 27. Flat gear; 28. Fixing frame; 29. First motor; 201. Placement frame; 202. Worm gear; 203. Pulley assembly; 204. Fixing component; 3. Detection mechanism; 31. Second motor; 32. Mounting frame; 33. First support component; 34. Horizontal plate; 35. Second support component; 36. Detection head; 37. Sliding plate; 38. Threaded rod; 39. Guide rod. Detailed Implementation
[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0028] This invention provides a technical solution:
[0029] Example 1:
[0030] Combination Figure 1-2 to Figure 3-5 A device for testing the bending strength of automotive parts includes a support base 1, a rotating mechanism 2 on the top left side of the support base 1, and a testing mechanism 3 on the top right side of the support base 1.
[0031] The rotating mechanism 2 includes a connecting bearing 21, which is fixedly connected to the top left side of the support base 1. A gear ring 26 is fixedly connected to the inner ring of the connecting bearing 21. A spur gear 27 meshes inside the gear ring 26. A rotating rod is fixedly connected to the inner ring of the spur gear 27. A worm wheel 23 is fixedly connected to the surface of the rotating rod. A worm 202 meshes on the surface of the worm wheel 23. A pulley set 203 is connected between the two worms 202 for transmission.
[0032] Furthermore, a positioning plate 25 is rotatably connected to the surface of the rotating rod, and a support frame 24 is fixedly connected to both sides of the positioning plate 25. The support frame 24 is fixedly connected to the surface of the support base 1. The rotating rod is rotatably connected through the positioning plate 25 and then fixed to the support base 1 by the support frame 24, providing stable support for the rotating rod and preventing it from shaking when driving the worm gear 23 to rotate.
[0033] Furthermore, a fixing bracket 28 is rotatably connected to the surface of the worm 202. The fixing bracket 28 is fixedly connected to the top left side of the support base 1, fixed on the support base 1 and rotatably connected to the worm 202, restricting the radial displacement of the worm 202, ensuring that the worm 202 and the worm wheel 23 are always precisely meshed, and avoiding transmission failure.
[0034] Furthermore, one end of the worm gear 202 is fixedly connected to the first motor 29, and the bottom of the first motor 29 is fixedly connected to the placement frame 201. The placement frame 201 is fixedly connected to the left side of the support base 1. The first motor 29 provides a power source for the worm gear 202, and drives the two worm gears 202 to rotate synchronously through the pulley group 203. The placement frame 201 fixes the first motor 29 to ensure the stability of the motor during operation and avoid vibration affecting the transmission accuracy.
[0035] Furthermore, a fixing member 204 is fixedly connected to the surface of the toothed ring 26. A cylinder is fixedly connected to the side of the fixing member 204 away from the toothed ring 26. A clamping plate 22 is fixedly connected to the side of the cylinder away from the fixing member 204. Two clamping plates 22 are provided and are symmetrically arranged. The fixing member 204 is fixed to the surface of the toothed ring 26 and serves as the mounting carrier for the cylinder. The cylinder can push the clamping plate 22 to move through its telescopic movement. The two symmetrically arranged clamping plates 22 can clamp the parts from both sides to prevent the parts from loosening or falling off during the testing process and to ensure the accuracy of the bending force point.
[0036] Example 2:
[0037] See Figure 6 Furthermore, based on Embodiment 1, the detection mechanism 3 further includes a threaded rod 38, which is rotatably connected to the surface of the support base 1. A sliding plate 37 is threadedly connected to the surface of the threaded rod 38, and a second support member 35 is fixedly connected to the top of the sliding plate 37. A detection head 36 is fixedly connected inside the second support member 35. When the threaded rod 38 rotates, it can drive the sliding plate 37 threadedly connected to the surface to move laterally. The second support member 35 at the top of the sliding plate 37 fixes the detection head 36, realizing the horizontal position adjustment of the detection head 36, which is convenient for aligning different bending detection points of the parts.
[0038] Furthermore, guide rods 39 are slidably connected to both sides of the bottom of the sliding plate 37. A horizontal plate 34 is fixedly connected to the surface of the guide rod 39. A first support member 33 is fixedly connected to the side of the horizontal plate 34 near the threaded rod 38. The first support member 33 is fixedly connected to the top of the support base 1 and rotatably connected to the top of the support base 1. The guide rods 39 restrict the movement direction of the sliding plate 37 to prevent it from shifting with the rotation of the threaded rod 38 and ensure that the sliding plate 37 moves smoothly. The horizontal plate 34 and the first support member 33 fix the guide rod 39 and the threaded rod 38 respectively, further improving the overall structural stability of the detection mechanism 3.
[0039] Furthermore, a second motor 31 is fixedly connected to the right side of the threaded rod 38, and a mounting bracket 32 is fixedly connected to the surface of the second motor 31. The mounting bracket 32 is fixedly connected to the right side of the support base 1. The second motor 31 provides power for the rotation of the threaded rod 38, realizing the automatic adjustment of the position of the detection head 36. The mounting bracket 32 fixes the second motor 31 to avoid the vibration of the motor operation from affecting the rotation accuracy of the threaded rod 38, and indirectly ensures the accurate positioning of the detection head 36.
[0040] In actual operation, when this device is used, the car parts are first placed between the clamping parts on both sides. Then, the cylinders on both sides are activated, which drive the clamping parts on both sides to move closer to each other. At this time, the clamping parts on both sides can clamp and fix the car parts, so as to avoid the car parts from shifting during the bending strength test, which would affect the accuracy of the bending strength test data.
[0041] Next, by starting the first motor 29, the first motor 29 can drive the worm 202 on one side to rotate. Under the linkage formed by the pulley group 203, it can drive the worms 202 and worm wheels 23 on both sides to rotate synchronously. At this time, the gear rings 26 and the flat gears 27 on both sides rotate synchronously and drive the automotive parts to rotate. This can detect the bending strength of different positions of the automotive parts and improve the effect of testing the bending strength of the automotive parts.
[0042] When it is necessary to test the bending strength of automotive parts, the second motor 31 is started, which drives the threaded rod 38 to rotate. During the rotation of the threaded rod 38, the sliding plate 37 is driven to move closer to the automotive parts, thereby achieving the purpose of testing the bending strength of automotive parts.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A device for testing the bending strength of automotive parts, comprising a support base (1), characterized in that: A rotating mechanism (2) is provided on the top left side of the support base (1), and a detection mechanism (3) is provided on the top right side of the support base (1); The rotating mechanism (2) includes a connecting bearing (21), which is fixedly connected to the top left side of the support base (1). A gear ring (26) is fixedly connected to the inner ring of the connecting bearing (21). A spur gear (27) meshes inside the gear ring (26). A rotating rod is fixedly connected to the inner ring of the spur gear (27). A worm wheel (23) is fixedly connected to the surface of the rotating rod. A worm (202) meshes on the surface of the worm wheel (23). A pulley set (203) is connected between the two worms (202).
2. The device for testing the bending strength of automotive parts according to claim 1, characterized in that: The rotating rod is rotatably connected to a positioning plate (25), and a support frame (24) is fixedly connected to both sides of the positioning plate (25). The support frame (24) is fixedly connected to the surface of the support base (1).
3. The device for testing the bending strength of automotive parts according to claim 1, characterized in that: The worm gear (202) is rotatably connected to a fixing frame (28), which is fixedly connected to the top left side of the support base (1).
4. The device for testing the bending strength of automotive parts according to claim 1, characterized in that: One end of the worm gear (202) is fixedly connected to the first motor (29), and the bottom of the first motor (29) is fixedly connected to a placement frame (201), which is fixedly connected to the left side of the support base (1).
5. The device for testing the bending strength of automotive parts according to claim 1, characterized in that: A fixing member (204) is fixedly connected to the surface of the toothed ring (26). A cylinder is fixedly connected to the side of the fixing member (204) away from the toothed ring (26). A clamping plate (22) is fixedly connected to the side of the cylinder away from the fixing member (204). There are two clamping plates (22), and the two clamping plates (22) are arranged symmetrically.
6. The device for testing the bending strength of automotive parts according to claim 1, characterized in that: The detection mechanism (3) includes a threaded rod (38), which is rotatably connected to the surface of the support base (1). A sliding plate (37) is threadedly connected to the surface of the threaded rod (38). A second support member (35) is fixedly connected to the top of the sliding plate (37). A detection head (36) is fixedly connected inside the second support member (35).
7. The device for testing the bending strength of automotive parts according to claim 6, characterized in that: Guide rods (39) are slidably connected to both sides of the bottom of the sliding plate (37). A horizontal plate (34) is fixedly connected to the surface of the guide rod (39). A first support member (33) is fixedly connected to the side of the horizontal plate (34) near the threaded rod (38). The first support member (33) is fixedly connected to the top of the support base (1). The first support member (33) is rotatably connected to the top of the support base (1).
8. The device for testing the bending strength of automotive parts according to claim 6, characterized in that: A second motor (31) is fixedly connected to the right side of the threaded rod (38), and a mounting bracket (32) is fixedly connected to the surface of the second motor (31). The mounting bracket (32) is fixedly connected to the right side of the support base (1).
Citation Information
Patent Citations
Device for detecting bending strength of automobile parts
CN217954150U