An automobile anti-collision beam bending test tool

Abstract

The utility model discloses a kind of automobile anti-collision beam bending test tool, comprising: tool table;Rotary component, the rotary component includes outer plate, inner plate, support rod, rotating ring, rotating rod, rotating shaft, tooth slot, tooth block and tooth disc, the outer plate is welded in the both sides of tool table, inner plate is arranged in the one side of outer plate outer surface, support rod is fixed in the lower part of outer plate one side, rotating shaft is rotatably connected in the one side of support rod, tooth disc is fixed in the one side of rotating shaft, tooth slot is opened in the outer wall of tooth disc. The utility model is rotated by being equipped with rotary component, and anti-collision beam is placed between rubber clamp block one and rubber clamp block two, and rotating handle driving threaded rod rotation can be realized clamping, rotating shaft and tooth disc are rotated by motor drive, utilize the meshing transmission of tooth slot and tooth block, drive rotating rod to rotate stably in rotating ring, to make the inner plate of being connected synchronous rotation further, and anti-collision beam always keeps clamping fixed state during adjusting process, satisfy the quick detection demand of production line.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing equipment, specifically a testing fixture for bending automotive anti-collision beams. Background Technology

[0002] As a core component of vehicle body passive safety, the bending performance of automotive anti-collision beams directly determines the energy absorption efficiency and occupant protection effect during vehicle collisions. Therefore, before leaving the factory, bending tests must be completed using special tooling to verify its resistance to deformation and failure modes under preset stress conditions.

[0003] When conducting bending tests on automotive crash beams, fixing holes are typically drilled in the external support platform of the testing fixture. After the test surface of the crash beam is placed against the support platform, bolts and nuts, along with pressure plates, are used to tighten the edges of the crash beam or the mounting holes, achieving positioning and fixation before testing. However, if insufficient alignment between the test surface and the loading mechanism is found after the test surface of the crash beam is placed against the support platform, all fasteners must be loosened, the tilt angle of the crash beam manually adjusted, and then the fasteners retightened and the alignment accuracy checked. This adjustment process needs to be repeated to achieve the preset accuracy requirements, greatly reducing testing efficiency. Especially in batch testing scenarios, the cumulative time increases significantly, making it difficult to meet the rapid testing needs of the production line. Utility Model Content

[0004] The purpose of this utility model is to provide a bending test fixture for automotive anti-collision beams to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution: This utility model is a testing fixture for bending of automotive anti-collision beams, comprising: Tooling table; The rotating component includes an outer plate, an inner plate, a support rod, a rotating ring, a rotating rod, a rotating shaft, a toothed groove, a toothed block, and a toothed disc. The outer plate is welded to both sides of the tooling table. The support rod is fixed to the lower part of one side of the outer plate. The rotating shaft is rotatably connected to one side of the support rod. The toothed disc is fixed to one side of the rotating shaft. The toothed groove is formed on the outer wall of the toothed disc. The rotating ring is fixed to one side of the outer plate. The rotating rod is rotatably connected to the inside of the rotating ring. The inner plate is fixed to the outside of the rotating rod. The toothed block is fixed to the outer wall of the rotating rod. The toothed block and the toothed groove are meshed together.

[0005] Furthermore, a support plate is fixed to the upper part of the other side of the outer surface of the inner plate, an internal threaded ring is provided at the top of the support plate, a threaded rod is threadedly connected to the middle of the internal threaded ring, and a turntable is provided at the bottom of the threaded rod.

[0006] Furthermore, a rubber clamp is bonded to the bottom of the turntable, and a handle is fixedly connected to the top of the threaded rod.

[0007] Furthermore, a rubber clamp is bonded to the lower part of the other side of the outer surface of the inner plate, and a motor is fixedly connected to the lower part of the other side of the outer surface of the outer plate. The support rod passes through the outer plate and is connected to the drive end of the motor.

[0008] Furthermore, it also includes a positioning component, which includes a slide groove, a slide rod, and a locking ring. The slide groove is formed in the upper part of the inner plate, one side of the slide rod is slidably connected to the inside of the slide groove, the locking ring is fixed to the other side of the slide rod, and the middle part of the locking ring is sleeved on the outer surface of the handle.

[0009] Furthermore, a limiting ring is fixed to the lower part of the outer surface of the handle, and a slot is provided inside the limiting ring. A plug ring is fixed to the bottom of the locking ring and is inserted into the slot.

[0010] Furthermore, a retaining ring is threaded onto one side of the outer surface of the slide rod, and the retaining ring is tightly fitted to one side of the inner plate.

[0011] This utility model has the following beneficial effects: This invention utilizes a rotating component to place the anti-collision beam between two rubber clamping blocks. Clamping is achieved by rotating the handle to drive the threaded rod. A motor drives the rotating shaft and gear disc to rotate, and the meshing transmission between the tooth grooves and tooth blocks causes the rotating rod to rotate stably within the rotating ring, thereby causing the connected inner plate to rotate synchronously. Angle adjustment is possible, and the anti-collision beam remains clamped and fixed throughout the adjustment process, eliminating the need for disassembly and significantly increasing testing efficiency to meet the rapid testing needs of the production line. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall tooling table of this utility model; Figure 2 This is a schematic diagram of the anti-collision beam after it has been fixed. Figure 3 This is a schematic diagram of the outer and inner panels of this utility model; Figure 4 This is the locking ring of the present invention.

[0014] The attached diagram lists the components represented by each number as follows: 11. Tooling table; 21. Outer plate; 22. Inner plate; 23. Support rod; 24. Rotating ring; 25. Rotating rod; 26. Rotating shaft; 27. Gear groove; 28. Gear block; 29. ​​Gear disc; 31. Rubber clamp block one; 32. Rubber clamp block two; 33. Support plate; 34. Turntable; 35. Threaded rod; 36. Handle; 37. Internal threaded ring; 38. Motor; 41. Slide groove; 42. Limiting ring; 43. Slot; 44. Slide rod; 45. Locking ring; 46. Insert ring; 47. Fixing ring. Detailed Implementation

[0015] 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.

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0017] Please see Figure 1-3 As shown, this utility model is a bending test fixture for automotive anti-collision beams, comprising: Tooling table 11; The 11-model tooling table, available in ACBT-3P-300, primarily employs three-point or four-point bending testing methods. The three-point bending principle involves placing both ends of the crash beam on the lower support, and applying a vertical load at the midpoint of the beam through the upper loading head, creating a simply supported beam stress model. According to ASTM D790, the loading rate must satisfy the formula R=ZL² / 6d (where Z is the strain rate, L is the support span, and d is the beam thickness) to ensure uniform strain distribution. The four-point bending method distributes the load through two upper loading points, reducing local stress concentration caused by single-point loading, making it more suitable for evaluating the overall bending resistance of crash beams. Dynamic bending tests (such as drop hammer impact) follow the principle of energy conservation, controlling the impact energy through the drop hammer height to simulate the instantaneous load in an actual collision.

[0018] The rotating component includes an outer plate 21, an inner plate 22, a support rod 23, a rotating ring 24, a rotating rod 25, a rotating shaft 26, a toothed groove 27, a toothed block 28, and a toothed disc 29. The outer plate 21 is welded to both sides of the tooling table 11. The support rod 23 is fixed to the lower part of one side of the outer plate 21. The rotating shaft 26 is rotatably connected to one side of the support rod 23. The toothed disc 29 is fixed to one side of the rotating shaft 26. The toothed groove 27 is formed on the outer wall of the toothed disc 29. The rotating ring 24 is fixed to one side of the outer plate 21. The rotating rod 25 is rotatably connected to the inside of the rotating ring 24. The inner plate 22 is fixed to the outside of the rotating rod 25. The toothed block 28 is fixed to the outer wall of the rotating rod 25. The toothed block 28 and the toothed groove 27 are meshed together. The rotating shaft 26 and the gear plate 29 are driven to rotate by the motor 38. The meshing transmission of the tooth groove 27 and the tooth block 28 drives the rotating rod 25 to rotate stably in the rotating ring 24, thereby making the connected inner plate 22 rotate synchronously. The angle can be adjusted, and the anti-collision beam remains clamped and fixed during the adjustment process without disassembly, which greatly increases the testing efficiency and meets the rapid testing needs of the production line.

[0019] A support plate 33 is fixed to the upper part of the other side of the outer surface of the inner plate 22. An internal threaded ring 37 is provided on the top of the support plate 33. A threaded rod 35 is threadedly connected to the middle of the internal threaded ring 37. A turntable 34 is provided at the bottom of the threaded rod 35. Place the anti-collision beam between rubber clamp 31 and rubber clamp 32, and rotate the handle 36 to drive the threaded rod 35 to rotate to achieve clamping.

[0020] A rubber clamp 32 is glued to the bottom of the turntable 34, and a handle 36 is fixedly connected to the top of the threaded rod 35; The turntable 34 at the bottom of the threaded rod 35 can prevent the rubber clamp 32 from rotating synchronously with the threaded rod 35, ensuring that the anti-collision beam does not twist or shift during the clamping process.

[0021] A rubber clamp 31 is bonded to the lower part of the other side of the outer surface of the inner plate 22, and a motor 38 is fixedly connected to the lower part of the other side of the outer surface of the outer plate 21. The support rod 23 passes through the outer plate 21 and is connected to the drive end of the motor 38. Rubber clamp 1 31 is fixed to one side of the tooling inner plate 22, and rubber clamp 2 32 is bonded to the turntable 34 at the bottom of the threaded rod 35. A gap larger than the width of the anti-collision beam to be tested is reserved between rubber clamp 1 31 and rubber clamp 2 32 to ensure that the anti-collision beam can be smoothly inserted.

[0022] The rotating shaft 26 and the gear disk 29 are driven to rotate by the motor 38. The meshing transmission between the tooth groove 27 and the tooth block 28 drives the rotating rod 25 to rotate stably within the rotating ring 24.

[0023] Due to their elastic properties, rubber clamp 1 31 and rubber clamp 2 32 will undergo slight deformation with the surface curvature of the anti-collision beam, forming a surface contact clamping state. This not only limits the lateral displacement and longitudinal movement of the anti-collision beam through friction, but also avoids damage to the surface of the anti-collision beam caused by rigid clamping, thus completing the rapid fixation of the anti-collision beam.

[0024] Working principle: First, the anti-collision beam to be tested is placed horizontally between rubber clamp 31 and rubber clamp 32. Then, the operator rotates the handle 36 at the top of the threaded rod 35 clockwise, causing the threaded rod 35 to rotate in the middle of the internal threaded ring 37. As the threaded rod 35 rotates, the turntable 34 moves axially synchronously with it, but does not rotate itself. This pushes rubber clamp 32 towards rubber clamp 31 until both rubber clamps are tightly fitted to the surface of the anti-collision beam. Then, the motor 38 is started, and its output shaft drives the coaxially connected... Rotating shaft 26 rotates, thereby driving the gear disk 29 fixed at the end of rotating shaft 26 to rotate synchronously. Its tooth grooves 27, through tooth surface meshing, drive the tooth block 28 to rotate around the center of the gear disk 29. The rotating rod 25, fixedly connected to the tooth block 28, moves synchronously accordingly. When the rotating rod 25 rotates along the rotating ring 24, the inner plate 22 rotates synchronously around the center of the rotating ring 24 with the rotating rod 25. This, in turn, drives the rubber clamp 31 fixed to the inner plate 22, the clamped anti-collision beam, and the second rubber clamp 32 attached to the anti-collision beam to rotate as a whole. Finally, a bending test is performed on the anti-collision beam. The operator can control the rotation angle of the anti-collision beam by rotating the motor 38 in both directions.

[0025] This step enables a test mode of fixing the angle once and adjusting it multiple times, which significantly shortens the test preparation time and improves test efficiency and data accuracy.

[0026] Please see Figure 1 , Figure 3 , Figure 4 As shown, this embodiment, based on the above embodiment, further includes: The positioning component includes a slide groove 41, a slide rod 44, and a locking ring 45. The slide groove 41 is opened on the upper part of the inner plate 22. One side of the slide rod 44 is slidably connected to the inside of the slide groove 41. The locking ring 45 is fixed to the other side of the slide rod 44. The middle part of the locking ring 45 is sleeved on the outer surface of the handle 36. The operator pushes the slide bar 44 along the slide groove 41 toward the handle 36. The slide bar 44 drives the locking ring 45 to move synchronously until the locking ring 45 is completely fitted onto the outside of the handle 36. The inner diameter of the locking ring 45 is slightly larger than the outer diameter of the handle 36 to ensure smooth fitting and no obvious shaking after fitting.

[0027] A limiting ring 42 is fixed to the lower part of the outer surface of the handle 36. A slot 43 is provided inside the limiting ring 42. A plug ring 46 is fixed to the bottom of the locking ring 45. The plug ring 46 is inserted and connected to the inside of the slot 43. Since the limiting ring 42 is fixed on the outer frame of the tooling, after the locking ring 45 is locked with the limiting ring 42 through the insert ring 46, it can no longer move in the horizontal direction or rotate around the axis of the handle 36, thereby limiting the rotation space of the handle 36 and ultimately preventing the threaded rod 35 from rotating in the opposite direction, ensuring that the clamping force of the rubber clamp on the anti-collision beam remains stable throughout the test.

[0028] A retaining ring 47 is threadedly connected to one side of the outer surface of the slide rod 44, and the retaining ring 47 is tightly fitted to one side of the inner plate 22; The inside of the retaining ring 47 is tightened to the outside of the insert rod by rotating through the thread on the outside of the insert rod, thereby fixing the position of the insert rod after sliding.

[0029] Working principle: The operator pushes the slide bar 44 along the slide groove 41 toward the handle 36. The slide bar 44 drives the locking ring 45 to move synchronously until the locking ring 45 is completely fitted onto the outside of the handle 36 and fully fits with the limiting ring 42. At this time, the slot 43 of the locking ring 45 is aligned with the slot 43 of the limiting ring 42 and inserted and fixed. The fixing ring 47 is rotated so that the fixing ring 47 is fastened to the outside of the insertion rod.

[0030] This step addresses the issue of clamping force loss caused by the rotation of handle 36 during testing by using guide rod 44 and engagement ring 46, thus ensuring test stability.

[0031] The preferred embodiments of the present invention disclosed above are merely illustrative of the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A testing fixture for bending of automotive anti-collision beams, characterized in that, include: Tooling table (11); The rotating component includes an outer plate (21), an inner plate (22), a support rod (23), a rotating ring (24), a rotating rod (25), a rotating shaft (26), a tooth groove (27), a tooth block (28), and a toothed disc (29). The outer plate (21) is welded to both sides of the tooling table (11). The support rod (23) is fixed to the lower part of one side of the outer plate (21). The rotating shaft (26) is rotatably connected to one side of the support rod (23). The toothed disc (29) is fixed to one side of the rotating shaft (26). The tooth groove (27) is opened on the outer wall of the toothed disc (29). The rotating ring (24) is fixed to one side of the outer plate (21). The rotating rod (25) is rotatably connected to the inside of the rotating ring (24). The inner plate (22) is fixed to the outside of the rotating rod (25). The tooth block (28) is fixed to the outer wall of the rotating rod (25). The tooth block (28) and the tooth groove (27) are meshed together.

2. The automotive anti-collision beam bending test fixture according to claim 1, characterized in that: A support plate (33) is fixed on the upper part of the other side of the outer surface of the inner plate (22). An internal threaded ring (37) is provided on the top of the support plate (33). A threaded rod (35) is threadedly connected to the middle of the internal threaded ring (37). A turntable (34) is provided at the bottom of the threaded rod (35).

3. The automotive anti-collision beam bending test fixture according to claim 2, characterized in that: The bottom of the turntable (34) is bonded with a rubber clamp (32), and the top of the threaded rod (35) is fixedly connected with a handle (36).

4. The automotive anti-collision beam bending test fixture according to claim 1, characterized in that: A rubber clamp (31) is bonded to the lower part of the other side of the outer surface of the inner plate (22), and a motor (38) is fixedly connected to the lower part of the other side of the outer surface of the outer plate (21). The support rod (23) passes through the outer plate (21) and is connected to the drive end of the motor (38).

5. The automotive anti-collision beam bending test fixture according to claim 3, characterized in that: It also includes a positioning component, which includes a slide groove (41), a slide rod (44) and a locking ring (45). The slide groove (41) is opened on the upper part of the inner plate (22). One side of the slide rod (44) is slidably connected to the inside of the slide groove (41). The locking ring (45) is fixed on the other side of the slide rod (44). The middle part of the locking ring (45) is sleeved on the outer surface of the handle (36).

6. The automotive anti-collision beam bending test fixture according to claim 5, characterized in that: A limiting ring (42) is fixed to the lower part of the outer surface of the handle (36). A slot (43) is provided inside the limiting ring (42). A plug ring (46) is fixed to the bottom of the locking ring (45). The plug ring (46) is inserted and connected inside the slot (43).

7. The automotive anti-collision beam bending test fixture according to claim 6, characterized in that: A retaining ring (47) is threaded onto one side of the outer surface of the slide rod (44), and the retaining ring (47) is tightly fitted to one side of the inner plate (22).

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