Fatigue life testing device for multi-axis loading wrought aluminum part

Abstract

The utility model discloses a multi-axis loading forged aluminum part fatigue life testing device which comprises a detection platform, a supporting frame is fixedly installed at the left end of the top of the detection platform, a reciprocating rotating assembly is arranged on the supporting frame, and a supporting plate is fixedly installed on the rear side of the left end of the top of the detection platform. Two first electric sliding rails are symmetrically and fixedly mounted on the front side face of the supporting plate, first rail blocks are fixedly mounted at the driving ends of the two first electric sliding rails correspondingly, and electric heaters are fixedly connected to the outer ends of the two first rail blocks correspondingly. According to the fatigue life testing device for the multi-axis loading forged aluminum part, the heights of the electric heaters can be adjusted through the first electric sliding rail and the first rail block, approaching and separating of the two electric heaters are achieved, and therefore the heating uniformity of the surface of a multi-axis loading forged aluminum part body is guaranteed; the fatigue life of the multi-axis loading forged aluminum part body can be conveniently tested under the constant temperature condition, the test environment can be strictly controlled, and then the accuracy of the detection result is improved.

Description

Technical Field

[0001] This utility model relates to the field of fatigue life testing technology for components, specifically a fatigue life testing device for multi-axis loaded forged aluminum components. Background Technology

[0002] The main function of the multiaxial loading fatigue life testing device for forged aluminum parts is to evaluate the fatigue life and durability of forged aluminum parts under multiaxial stress. This device simulates the multiaxial stress state under actual working conditions and repeatedly loads the parts to measure their performance changes and life prediction during the fatigue process.

[0003] Chinese patent CN219799084U discloses a torsional fatigue testing device, which includes: a positioning component comprising a first connecting part and a second connecting part arranged opposite to each other, the first connecting part being used to fix one end of a fiber Bragg grating sensor along its length, and the second connecting part being used to fix the other end of the fiber Bragg grating sensor along its length; and a driving component connected to the first connecting part for driving the first connecting part to rotate relative to the second connecting part, wherein the rotation axis of the first connecting part is parallel to the length direction; wherein the driving component can drive the first connecting part to rotate in both directions around the rotation axis to test the torsional fatigue strength of the fiber Bragg grating sensor. In this scheme, fiber Bragg grating sensors with torsional fatigue strengths all higher than a preset torsional fatigue strength can be selected by statistical methods, thereby improving the service life of fiber Bragg grating sensors in actual use.

[0004] The above method makes it difficult to precisely control the temperature of the material during the test, and temperature fluctuations can affect the material's performance. If the temperature environment during the test is not properly managed, it may lead to deviations in the test results. Utility Model Content

[0005] The purpose of this invention is to provide a fatigue life testing device for multi-axis loaded forged aluminum parts, in order to solve the problem mentioned in the background art that temperature fluctuations can affect material properties, and that if the temperature environment during the test is not properly managed, the test results may be biased.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-axis loaded fatigue life testing device for forged aluminum parts, comprising a testing platform, a support frame fixedly installed on the top left end of the testing platform, a reciprocating rotation component provided on the support frame, and a support plate fixedly installed on the rear side of the top left end of the testing platform.

[0007] Two first electric slide rails are symmetrically fixedly installed on the front side of the support plate. A first track block is symmetrically fixedly installed on the drive end of each of the two first electric slide rails, and an electric heater is fixedly connected to the outer end of each of the two first track blocks.

[0008] Preferably, the detection platform is internally equipped with a transmission component, and multiple transmission plates are fixedly installed on the top of the transmission component. Each transmission plate is rotatably connected to a second clamp on its outer side, and the second clamp holds and connects a multi-axis loaded forged aluminum component body.

[0009] Preferably, the reciprocating rotation assembly includes an electric telescopic rod, which is fixedly installed on the bottom left side of the support frame. A connecting plate is fixedly installed at one end of the electric telescopic rod, and a rack is fixedly installed on the top of the connecting plate.

[0010] Preferably, a gear is meshed with the top of the rack, a movable seat is fixedly installed on one side of the gear, the right end of the movable seat rotates through the support frame and extends to the outside, a first clamp is fixedly installed on the right end of the movable seat, and the multi-axis loaded forged aluminum component body is located between the first clamp and the second clamp.

[0011] Preferably, the transmission component includes a drive motor, which is fixedly mounted on the bottom left wall inside the detection platform. A small pulley is fixedly mounted on the output end of the drive motor, and the small pulley is connected to a large pulley via a belt drive. The large pulley is rotatably connected to the top right wall inside the detection platform. Both the large and small pulleys are rotatably connected to the inner wall.

[0012] Preferably, a rotating disk is fixedly installed on the top of the large pulley, and the top of the rotating disk extends through to the outer side of the top of the detection platform. Multiple second electric slide rails arranged in a circular array are fixedly installed on the top of the rotating disk. The drive end of each second electric slide rail is connected to a second track block, and each second track block is fixedly connected to the bottom of the corresponding transmission plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a first electric slide rail, a first track block and an electric heater, allows the first electric slide rail and the first track block to adjust the height of the electric heater, enabling the two electric heaters to approach and separate, thereby ensuring the uniformity of heating on the surface of the multi-axis loaded forged aluminum parts. This facilitates fatigue life testing of the multi-axis loaded forged aluminum parts under constant temperature conditions, and allows for strict control of the test environment, ensuring that the temperature parameters are within a controllable range, thereby improving the accuracy of the test results.

[0015] 2. By setting up a transmission component, this utility model can adjust the position of the second clamp, thereby adjusting the distance between the second clamp and the second clamp, which facilitates the inspection of multi-axis loaded forged aluminum parts of different sizes and expands the inspection range of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial schematic diagram of the front cross-section of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the reciprocating rotary component of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the support plate, the first electric slide rail, the first track block, and the electric heater of this utility model;

[0020] Figure 5 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Detection platform; 2. Support frame; 3. Reciprocating rotary assembly; 31. Electric telescopic rod; 32. Connecting plate; 33. Rack; 34. Gear; 35. Movable seat; 36. First clamp; 4. Support plate; 5. First electric slide rail; 6. First track block; 7. Electric heater; 8. Multi-axis loaded forged aluminum component body; 9. Transmission assembly; 91. Drive motor; 92. Small pulley; 93. Large pulley; 94. Rotary disk; 95. Second electric slide rail; 96. Second track block; 10. Transmission plate; 11. Second clamp. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 The present invention provides a technical solution: a multi-axis loaded fatigue life testing device for forged aluminum parts, including a testing platform 1, a support frame 2 fixedly installed on the top left end of the testing platform 1, a reciprocating rotation component 3 provided on the support frame 2, and a support plate 4 fixedly installed on the rear side of the top left end of the testing platform 1.

[0024] Two first electric slide rails 5 are symmetrically fixedly installed on the front side of the support plate 4. A first track block 6 is fixedly installed at the drive end of each of the two first electric slide rails 5, and an electric heater 7 is fixedly connected to the outer end of each of the two first track blocks 6. A transmission assembly 9 is installed inside the detection platform 1. Multiple transmission plates 10 are fixedly installed on the top of the transmission assembly 9. A second clamp 11 is rotatably connected to the outer side of each transmission plate 10. A multi-axis loaded forged aluminum component body 8 is clamped and connected to the second clamp 11. The first electric slide rails 5 are existing technology and are capable of driving the first track blocks 6 to move up and down.

[0025] In use, this device can adjust the height of the electric heater 7 by setting the first electric slide rail 5 and the first track block 6, so as to realize the approach and separation of the two electric heaters 7, thereby ensuring the uniformity of heating on the surface of the multi-axis loaded forged aluminum component body 8. This facilitates fatigue life testing of the multi-axis loaded forged aluminum component body 8 under constant temperature conditions, and can strictly control the test environment to ensure that the temperature parameters are within a controllable range, thereby improving the accuracy of the test results.

[0026] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, the reciprocating rotary assembly 3 includes an electric telescopic rod 31, which is fixedly installed on the bottom left side of the support frame 2. A connecting plate 32 is fixedly installed at one end of the electric telescopic rod 31. A rack 33 is fixedly installed on the top of the connecting plate 32. A gear 34 is meshed with the top of the rack 33. A movable seat 35 is fixedly installed on the right side of the gear 34. The right end of the movable seat 35 rotates through the support frame 2 and extends to the outside. A first clamp 36 is fixedly installed on the right end of the movable seat 35. The multi-axis loaded forged aluminum component body 8 is located between the first clamp 36 and the second clamp 11.

[0027] Among them, the electric telescopic rod 31 and the first clamp 36 are existing technologies. The electric telescopic rod 31 can drive the connecting plate 32 to move back and forth, and the clamping end of the first clamp 36 can clamp on the outer side of the left end of the multi-axis loaded forged aluminum component body 8.

[0028] This device drives the gear 34 to rotate via the rack 33, achieving high-precision positioning during transmission, thereby improving the accuracy and stability of the experimental equipment. This helps to more accurately detect the fatigue life of multi-axis loaded forged aluminum parts and can effectively reduce errors in fatigue life testing.

[0029] Please see Figure 1 , Figure 2 and Figure 5In some embodiments, the transmission component 9 includes a drive motor 91, which is fixedly mounted on the bottom left wall of the inner side of the detection platform 1. A small pulley 92 is fixedly mounted on the output end of the drive motor 91. The small pulley 92 is connected to a large pulley 93 via a belt drive. The large pulley 93 is rotatably connected to the top right wall of the inner side of the detection platform 1. Both the large pulley 93 and the small pulley 92 are rotatably connected to the inner wall of the detection platform 1. A rotating disk 94 is fixedly mounted on the top of the large pulley 93. The top of the rotating disk 94 extends through to the outer top of the detection platform 1. A plurality of second electric slide rails 95 arranged in a circular array are fixedly mounted on the top of the rotating disk 94. The drive end of each second electric slide rail 95 is connected to a second track block 96, and each second track block 96 is fixedly connected to the bottom of the corresponding transmission plate 10.

[0030] The second electric slide rail 95 and the second clamp 11 are existing technologies. The second track block 96 at the drive end of the second electric slide rail 95 moves, and the second clamp 11 can clamp on the outer right side of the multi-axis loaded forged aluminum component body 8.

[0031] The transmission component 9 of this device can adjust the position of the second clamp 11, thereby adjusting the distance between the second clamp 11 and the first clamp 36, which facilitates the inspection of multi-axis loaded forged aluminum parts of different sizes and expands the inspection range of the equipment. At the same time, the second clamp 11 and the first clamp 36 operate on the same principle.

[0032] Working principle: The operator places the right end of the multi-axis loaded forged aluminum component body 8 inside the second clamp 11, and uses the second clamp 11 to fix the multi-axis loaded forged aluminum component body 8. The drive motor 91 is started, which drives the small pulley 92 to rotate. The small pulley 92 drives the large pulley 93 to rotate via a belt. The large pulley 93 drives the rotating disk 94 to rotate. The rotating disk 94 drives the second electric slide rail 95 to rotate. The second electric slide rail 95 drives the second track block 96 to rotate. The second track block 96 drives the transmission... The conveyor plate 10 rotates, and the conveyor plate 10 drives the second clamp 11 to rotate; the left end of the multi-axis loaded forged aluminum component body 8 is adjusted to face the first clamp 36; the second electric slide rail 95 is activated, the second electric slide rail 95 drives the second track block 96 to move, the second track block 96 drives the conveyor plate 10 to move, the conveyor plate 10 drives the second clamp 11 to move, thereby moving the left end of the multi-axis loaded forged aluminum component body 8 into the first clamp 36, and fixing the left end of the multi-axis loaded forged aluminum component body 8 with the first clamp 36;

[0033] Next, the two first electric slide rails 5 are started simultaneously, and the two first electric slide rails 5 drive the two first track blocks 6 to adjust. The two first track blocks 6 move closer, which in turn drives the two electric heaters 7 to move closer, and adjust the two electric heaters 7 to the surface of the multi-axis loaded forged aluminum component body 8, and heat the surface of the multi-axis loaded forged aluminum component body 8 at a constant temperature, so that the surface of the multi-axis loaded forged aluminum component body 8 is kept at a constant temperature.

[0034] Then, the electric telescopic rod 31 is activated. The electric telescopic rod 31 drives the connecting plate 32 to move back and forth. The connecting plate 32 drives the rack 33 to move back and forth. The rack 33 drives the gear 34 to rotate. The gear 34 drives the movable seat 35 to rotate. The movable seat 35 drives the first clamp 36 to rotate. The first clamp 36 drives the multi-axis loaded forged aluminum component body 8 to reciprocate, so that the testing platform 1 performs fatigue life testing on the surface of the multi-axis loaded forged aluminum component body 8. The above is the working process of the entire device. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0035] 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 these 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 fatigue life testing device for multi-axis loaded forged aluminum parts, characterized in that: The test platform (1) is provided with a support frame (2) fixedly installed on the top left end of the test platform (1), a reciprocating rotation component (3) is provided on the support frame (2), and a support plate (4) is fixedly installed on the rear side of the top left end of the test platform (1). Two first electric slide rails (5) are symmetrically fixedly installed on the front side of the support plate (4). The driving ends of the two first electric slide rails (5) are fixedly installed with first track blocks (6), and the outer ends of the two first track blocks (6) are fixedly connected with electric heaters (7).

2. The fatigue life testing device for multi-axis loaded forged aluminum parts according to claim 1, characterized in that: The detection platform (1) is equipped with a transmission component (9) inside. Multiple transmission plates (10) are fixedly installed on the top of the transmission component (9). A second clamp (11) is rotatably connected to the outer side of each transmission plate (10). The second clamp (11) holds and connects a multi-axis loaded forged aluminum component body (8).

3. The fatigue life testing device for multi-axis loaded forged aluminum parts according to claim 1, characterized in that: The reciprocating rotating assembly (3) includes an electric telescopic rod (31), which is fixedly installed on the bottom left side of the support frame (2). A connecting plate (32) is fixedly installed at one end of the electric telescopic rod (31), and a rack (33) is fixedly installed on the top of the connecting plate (32).

4. The fatigue life testing device for multi-axis loaded forged aluminum parts according to claim 3, characterized in that: The top of the rack (33) is meshed with a gear (34), and a movable seat (35) is fixedly installed on the right side of the gear (34). The right end of the movable seat (35) rotates through the support frame (2) and extends to the outside. The right end of the movable seat (35) is fixedly installed with a first clamp (36). The multi-axis loaded forged aluminum component body (8) is located between the first clamp (36) and the second clamp (11).

5. The fatigue life testing device for multi-axis loaded forged aluminum parts according to claim 2, characterized in that: The transmission component (9) includes a drive motor (91), which is fixedly installed on the bottom left wall inside the detection platform (1). A small pulley (92) is fixedly installed at the output end of the drive motor (91). The small pulley (92) is connected to a large pulley (93) via belt drive. The large pulley (93) is rotatably connected to the top right wall inside the detection platform (1).

6. The fatigue life testing device for multi-axis loaded forged aluminum parts according to claim 5, characterized in that: A rotating disk (94) is fixedly installed on the top of the large pulley (93). The top of the rotating disk (94) rotates through and extends to the outer side of the top of the detection platform (1). A plurality of second electric slide rails (95) arranged in a ring array are fixedly installed on the top of the rotating disk (94). The driving end of each second electric slide rail (95) is connected to a second track block (96), and each second track block (96) is fixedly connected to the bottom of the corresponding transmission plate (10).

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