Bending fatigue clamp for aerospace equipment

Abstract

The utility model discloses a flexural fatigue fixture for aerospace equipment, which is applied to the field of aerospace equipment and is characterized in that a clamping rod is separated from a clamping hole by moving a pull block, then a first sliding block is moved to a required position, the pull block is loosened, the clamping rod is clamped with the clamping hole under the action of a first spring, and the clamping rod and the clamping hole are fixed; a first sliding block moves to change the rotating radius of a transverse rod, so that the moving stroke of a clamping mechanism is changed, the purpose of adjusting the bending degree is achieved, the use cost is reduced, practicability and applicability are improved, a pressing block is moved to enable a pressing rod to drive a fixing rod to be disengaged from clamping connection with a clamping connection groove, and then a clamping tool is taken down and replaced. The replaced clamp is installed on the fixing column and pressed downwards, the fixing rod is connected with the clamping groove in a clamped mode under the action of the second spring, the clamp is fixed, replacement is completed, and therefore the purpose of conveniently replacing the clamp is achieved, the workload is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of aerospace equipment, in particular to a bending fatigue fixture for aerospace equipment. Background Art

[0002] At present, a Chinese utility model with announcement number CN219455705U discloses a bending fatigue fixture for aerospace equipment, including a base plate, and also including: two groups of placement components for placing square plates or circular plates for making aerospace equipment, and a moving component for making the two groups of placement components move toward each other to achieve clamping and fixing of the square plates or circular plates for making aerospace equipment. The utility model solves the problem that the current fatigue fixture can only clamp and fix one shape of plate for making aerospace equipment by providing a first placement groove for placing square plates for making aerospace equipment and a second placement groove for placing circular plates for making aerospace equipment on the placement plate, thereby avoiding the need to replace the fixture when another shape needs to be clamped and fixed, thereby reducing cost investment and saving time.

[0003] The existing bending fatigue fixture cannot adjust the curvature. During the bending fatigue test, the material needs to be subjected to fatigue tests with different curvatures. Generally, the moving distance of the bending fatigue fixture is fixed, resulting in a fixed curvature. If a different curvature test is required, the fixture needs to be replaced, which is troublesome, increases the cost of use, reduces practicality and applicability, and is not convenient for replacing the fixture. Generally, the fixture is fixed by bolts. When replacing it, tools need to be used to disassemble and assemble it, which is cumbersome, increases the workload, reduces the efficiency of replacement, and is inconvenient to use. In order to solve the above-mentioned problems, we propose a bending fatigue fixture for aerospace equipment. Utility Model Content

[0004] The utility model aims to provide a bending fatigue fixture for aerospace equipment, which has the advantages of being able to adjust the bending degree and being convenient for replacing the fixture.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a bending fatigue fixture for aerospace equipment, comprising a base plate, a fixed shell is bolted to the top of the base plate, a motor is bolted to the surface of the fixed shell, an output end of the motor extends to the inside of the fixed shell and is fixedly sleeved with a turntable, a first slide groove is opened on the surface of the turntable, a first slider is slidably connected to the inner wall of the first slide groove, a clamping rod is slidably sleeved on the inner wall of the first slider, a limit plate is fixedly sleeved on the surface of the clamping rod, a first spring is arranged between the limit plate and the inner wall of the first slider, and the inner wall of the first slide groove is provided with a first spring. The wall is provided with a clamping hole, and the clamping hole is clamped with the clamping rod, a cross bar is bolted to the surface of the first sliding block, a transmission rod is rotatably sleeved on the surface of the cross bar, a lifting plate is hinged on the other end of the transmission rod, a fixing mechanism is provided at the bottom of the lifting plate, a fixing column is bolted to the top of the lifting plate, a fixing cylinder is slidably sleeved on the surface of the fixing column, a clamping mechanism is provided at the top of the fixing cylinder, a fixing rod is slidably connected to the inner wall of the fixing column, a pressing rod is bolted to the surface of the fixing rod, a second spring is provided between the fixing rods, a clamping groove is provided on the inner wall of the fixing cylinder, and the clamping groove is clamped with the fixing rod.

[0006] By adopting the above technical scheme, the pulling block is moved to disengage the clamping rod from the clamping hole, and then the first slider is moved to the required position, and the pulling block is released. The clamping rod is clamped with the clamping hole under the action of the first spring to fix it. The movement of the first slider changes the rotation radius of the cross bar, thereby changing the moving stroke of the clamping mechanism, thereby achieving the purpose of adjusting the curvature, reducing the cost of use, and improving practicality and applicability. The pressing block is moved to make the pressing rod drive the fixing rod to disengage the clamping groove, and then the clamp is removed and replaced, and the replaced clamp is installed on the fixing column and pressed downward. The fixing rod is clamped with the clamping groove under the action of the second spring to fix the clamp, and the replacement is completed, thereby achieving the purpose of facilitating the replacement of the clamp, reducing the workload, and improving work efficiency.

[0007] The utility model is further configured as follows: the fixing mechanism comprises a fixing block, the fixing block is bolted to the surface of the fixing shell, a sliding rod is slidably sleeved inside the fixing block, and the top of the sliding rod is bolted to the bottom of the lifting plate.

[0008] By adopting the above technical solution, the lifting plate is fixed by setting a fixing mechanism to ensure stability.

[0009] The utility model is further configured as follows: the clamping mechanism includes a fixed plate, the bottom of the fixed plate is bolted to the top of the fixed cylinder, a second sliding groove is opened on the surface of the fixed plate, a bidirectional screw rod is rotatably sleeved on the inner wall of the second sliding groove, a second slider is threadedly connected to the surface of the bidirectional screw rod, and the second slider is slidably connected to the inner wall of the second sliding groove, and a clamping head is bolted to the top of the second slider.

[0010] By adopting the above technical solution, a clamping mechanism is provided to clamp the test material, thereby facilitating the test.

[0011] The utility model is further configured as follows: one end of the clamping rod is bolted with a pulling block.

[0012] By adopting the above technical solution and arranging the pulling block, it is convenient to move the clamping rod.

[0013] The utility model is further configured as follows: scale lines are printed on the surface of the rotating disk.

[0014] By adopting the above technical solution, the adjustment is facilitated by setting the scale lines.

[0015] The utility model is further configured as follows: one end of the pressing rod is bolted with a pressing block.

[0016] By adopting the above technical solution and arranging the pressing block, it is convenient to move the pressing rod.

[0017] The utility model is further configured as follows: one end of the bidirectional screw rod is bolted with a rotating head.

[0018] By adopting the above technical solution and arranging a rotating head, it is easy to rotate the bidirectional screw rod and facilitate clamping.

[0019] The utility model is further configured as follows: the inner wall of the clamping head is rotatably connected with a roller.

[0020] By adopting the above technical solution and setting rollers, friction can be reduced and test accuracy can be improved.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. The utility model moves the pull block to disengage the clamping rod from the clamping hole, and then moves the first slider to the required position, releases the pull block, and the clamping rod is clamped with the clamping hole under the action of the first spring to fix it. The movement of the first slider changes the rotation radius of the cross bar, thereby changing the movement stroke of the clamping mechanism, thereby achieving the purpose of adjusting the curvature, reducing the use cost, and improving practicality and applicability.

[0023] 2. The utility model moves the pressing block to make the pressing rod drive the fixing rod to disengage from the clamping groove, then removes the clamp and replaces it, installs the replaced clamp on the fixing column and presses downward, and the fixing rod is engaged with the clamping groove under the action of the second spring to fix the clamp and complete the replacement, thereby achieving the purpose of facilitating the replacement of the clamp, reducing the workload and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a three-dimensional diagram of the structure of the utility model;

[0025] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0026] Figure 3 It is a side sectional view of a local structure of the utility model;

[0027] Figure 4 This utility model Figure 3 A magnified view of the structure in the middle.

[0028] 1. The first sliding groove is a groove formed by the upper and lower parts of the upper and lower parts of the lower parts, and the second sliding groove is a groove formed by the upper and lower parts of the upper and lower parts of the lower parts. The ... DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiment 1:

[0031] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A bending fatigue fixture for aerospace equipment includes a base plate 1, a fixed shell 2 is bolted to the top of the base plate 1, a motor 3 is bolted to the surface of the fixed shell 2, an output end of the motor 3 extends to the inside of the fixed shell 2 and is fixedly sleeved with a turntable 4, a first slide groove 5 is provided on the surface of the turntable 4, a first slider 6 is slidably connected to the inner wall of the first slide groove 5, a clamping rod 7 is slidably sleeved on the inner wall of the first slider 6, a limit plate 8 is fixedly sleeved on the surface of the clamping rod 7, a first spring 9 is arranged between the limit plate 8 and the inner wall of the first slider 6, a clamping hole 10 is provided on the inner wall of the first slide groove 5, and the clamping hole 10 is clamped with the clamping rod 7, the surface of the first slider 6 A cross bar 11 is bolted on the surface, and a transmission rod 12 is rotatably sleeved on the surface of the cross bar 11. A lifting plate 13 is hinged on the other end of the transmission rod 12. A fixing mechanism 14 is provided at the bottom of the lifting plate 13. The clamping rod 7 is disengaged from the clamping hole 10 by moving the pull block 29, and then the first slider 6 is moved to the required position, and the pull block 29 is released. The clamping rod 7 is clamped with the clamping hole 10 under the action of the first spring 9 to fix it. The movement of the first slider 6 changes the rotation radius of the cross bar 11, thereby changing the moving stroke of the clamping mechanism 17, thereby achieving the purpose of adjusting the curvature, reducing the cost of use, and improving practicality and applicability.

[0032] refer to Figure 1 and Figure 2 The fixing mechanism 14 includes a fixing block 22, which is bolted to the surface of the fixing shell 2. A sliding rod 23 is slidably sleeved inside the fixing block 22, and the top of the sliding rod 23 is bolted to the bottom of the lifting plate 13. By setting the fixing mechanism 14, the lifting plate 13 is fixed to ensure stability.

[0033] refer to Figure 4 One end of the clamping rod 7 is bolted with a pull block 29, and the clamping rod 7 is convenient to move by providing the pull block 29.

[0034] refer to Figure 2 The surface of the turntable 4 is printed with scale lines 30, and the scale lines 30 are provided for easy adjustment.

[0035] Embodiment 2:

[0036] refer to Figure 1 and Figure 2The top of the lifting plate 13 is bolted with a fixing column 15, and the surface of the fixing column 15 is slidably sleeved with a fixing cylinder 16. The top of the fixing cylinder 16 is provided with a clamping mechanism 17, and the inner wall of the fixing column 15 is slidably connected with a fixing rod 18, and the surface of the fixing rod 18 is bolted with a pressing rod 19, and a second spring 20 is arranged between the fixing rods 18. The inner wall of the fixing cylinder 16 is provided with a clamping groove 21, and the clamping groove 21 is clamped with the fixing rod 18. By moving the pressing block 31, the pressing rod 19 drives the fixing rod 18 to disengage from the clamping groove 21, and then the clamp is removed and replaced, and the replaced clamp is installed on the fixing column 15 and pressed downward. The fixing rod 18 is clamped with the clamping groove 21 under the action of the second spring 20, and the clamp is fixed and the replacement is completed, thereby achieving the purpose of facilitating the replacement of the clamp, reducing the workload and improving the work efficiency.

[0037] refer to Figure 1 and Figure 2 The clamping mechanism 17 includes a fixed plate 24, the bottom of the fixed plate 24 is bolted to the top of the fixed tube 16, a second slide groove 25 is provided on the surface of the fixed plate 24, a bidirectional screw rod 27 is rotatably sleeved on the inner wall of the second slide groove 25, a second slider 26 is threadedly connected to the surface of the bidirectional screw rod 27, and the second slider 26 is slidably connected to the inner wall of the second slide groove 25, a clamping head 28 is bolted to the top of the second slider 26, and the clamping mechanism 17 is provided to clamp the test material for convenient testing.

[0038] refer to Figure 2 One end of the pressing rod 19 is bolted with a pressing block 31. By setting the pressing block 31, it is convenient to move the pressing rod 19.

[0039] refer to Figure 1 and Figure 2 One end of the bidirectional screw rod 27 is bolted with a rotating head 32. By setting the rotating head 32, it is easy to rotate the bidirectional screw rod 27 and clamp it conveniently.

[0040] refer to Figure 1 and Figure 2 The inner wall of the clamping head 28 is rotatably connected with a roller 33. By providing the roller 33, the friction force is reduced and the test accuracy is improved.

[0041] A brief description of the usage process: move the pulling block 29, the pulling block 29 moves to drive the clamping rod 7 to move, the clamping rod 7 moves to disengage the clamping rod 7 from the clamping hole 10, and then after the first slider 6 is moved to the required position, release the pulling block 29, the clamping rod 7 is clamped with the clamping hole 10 under the action of the first spring 9 to fix it, the first slider 6 moves to change the rotation radius of the cross bar 11, thereby changing the moving stroke of the clamping mechanism 17, thereby achieving the purpose of adjusting the curvature; move the pressing block 31, the pressing block 31 moves to drive the pressing rod 19 to move, the pressing rod 19 moves to disengage the fixing rod 18 from the clamping groove 21, and then remove the clamp and replace it, install the replaced clamp on the fixing column 15, and press downward, the fixing rod 18 is clamped with the clamping groove 21 under the action of the second spring 20, the clamp is fixed, and the replacement is completed, thereby achieving the purpose of facilitating the replacement of the clamp.

[0042] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A bending fatigue fixture for aerospace equipment, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is bolted with a fixed shell (2), the surface of the fixed shell (2) is bolted with a motor (3), the output end of the motor (3) extends to the inside of the fixed shell (2) and is fixedly sleeved with a turntable (4), the surface of the turntable (4) is provided with a first slide groove (5), the inner wall of the first slide groove (5) is slidably connected with a first slider (6), the inner wall of the first slider (6) is slidably sleeved with a clamping rod (7), the surface of the clamping rod (7) is fixedly sleeved with a limit plate (8), a first spring (9) is arranged between the limit plate (8) and the inner wall of the first slider (6), the inner wall of the first slide groove (5) is provided with a clamping hole (10), and the clamping hole (10) is clamped with the clamping rod (7), the surface of the first slider (6) is bolted with a cross bar (1 1), a transmission rod (12) is rotatably sleeved on the surface of the cross bar (11), a lifting plate (13) is hinged on the other end of the transmission rod (12), a fixing mechanism (14) is arranged at the bottom of the lifting plate (13), a fixing column (15) is bolted on the top of the lifting plate (13), a fixing cylinder (16) is slidably sleeved on the surface of the fixing column (15), a clamping mechanism (17) is arranged on the top of the fixing cylinder (16), a fixing rod (18) is slidably connected to the inner wall of the fixing column (15), a pressing rod (19) is bolted on the surface of the fixing rod (18), a second spring (20) is arranged between the fixing rods (18), a clamping groove (21) is opened on the inner wall of the fixing cylinder (16), and the clamping groove (21) is clamped with the fixing rod (18).

2. A bending fatigue fixture for aerospace equipment according to claim 1, characterized in that: The fixing mechanism (14) comprises a fixing block (22), the fixing block (22) is bolted to the surface of the fixing shell (2), a sliding rod (23) is slidably sleeved inside the fixing block (22), and the top of the sliding rod (23) is bolted to the bottom of the lifting plate (13).

3. The bending fatigue fixture for aerospace equipment according to claim 1, characterized in that: The clamping mechanism (17) comprises a fixing plate (24), the bottom of which is bolted to the top of the fixing tube (16), a second slide groove (25) is provided on the surface of the fixing plate (24), a bidirectional screw rod (27) is rotatably sleeved on the inner wall of the second slide groove (25), a second slider (26) is threadedly connected to the surface of the bidirectional screw rod (27), and the second slider (26) is slidably connected to the inner wall of the second slide groove (25), and a clamping head (28) is bolted to the top of the second slider (26).

4. The bending fatigue fixture for aerospace equipment according to claim 1, characterized in that: One end of the clamping rod (7) is bolted with a pull block (29).

5. The bending fatigue fixture for aerospace equipment according to claim 1, characterized in that: The surface of the rotating disk (4) is printed with scale lines (30).

6. The bending fatigue fixture for aerospace equipment according to claim 1, characterized in that: One end of the pressing rod (19) is bolted with a pressing block (31).

7. The bending fatigue fixture for aerospace equipment according to claim 3, characterized in that: One end of the bidirectional screw rod (27) is bolted with a rotating head (32).

8. The bending fatigue fixture for aerospace equipment according to claim 3, characterized in that: The inner wall of the clamping head (28) is rotatably connected to a roller (33).

Images