High-temperature vibration test clamp

Abstract

The utility model relates to the technical field of test tools, and discloses a high-temperature vibration test clamp, which comprises a base, supporting stand feet are fixedly connected to the outer side of the circumference of the bottom of the base in a circumferential array distribution mode, and a vibration mechanism used for workpiece vibration detection is arranged at the top of the base. According to the utility model, through the cooperation of the arranged spring, the first magnetic block and the second magnetic block, the fixing frame generates a vibration effect, and the fixing frame and the connecting ball are in running fit connection, so that the vibration directions of the fixing frame and a workpiece fixed on the fixing frame are complex and diversified, thereby greatly improving the high-temperature vibration experiment effect and guaranteeing the authority of the experiment result; meanwhile, through the rotation effect and the vibration effect generated by the cooperation effect of the spring, the second magnetic block and the first magnetic block, the clamp is prevented from being deformed and damaged due to collision between the clamp and a testing unit, and the service life of the clamp is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of test tooling, and in particular relates to a high-temperature vibration test fixture. Background Art

[0002] Existing products need to undergo a series of vibration tests during manufacturing to test the reliability of the products in real environments. High-temperature vibration testing is an effective method to verify whether a product is reliable in real use environments. Vibration testing machines are used to simulate the various environments encountered by products during manufacturing, assembly, transportation, and use, in order to determine whether the product can withstand environmental vibrations.

[0003] Existing high-temperature vibration tests usually fix the product on a fixture and then use a vibration test bench to perform vibration testing. However, the existing vibration test bench has a single vibration direction, and the collision between the fixture and the unit during the vibration process may cause resonance, thereby affecting the vibration test structure and damaging the fixture, affecting the service life of the fixture.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A high temperature vibration test fixture comprises a base, wherein the outer circumference of the bottom of the base is distributed in a circumferential array and fixedly connected with supporting feet, and the top of the base is provided with a vibration mechanism for workpiece vibration detection;

[0007] The vibration mechanism includes a rotating turntable and a clamping assembly for fixing a workpiece. The turntable is rotatably installed at the center position of the top of the base. A through hole is provided at the center position between the inside of the base and the bottom. A shaft rod is rotatably installed through the inner wall of the through hole. One end of the top of the shaft rod is fixedly connected to the center position of the bottom of the turntable. A servo motor is fixedly installed at the center position of the bottom of the base, and the output shaft of the servo motor is fixedly connected to one end of the bottom of the shaft rod. The clamping assembly is arranged above the turntable, and an elastic structure for realizing vibration is also arranged between the clamping assembly and the turntable.

[0008] As a preferred embodiment of the present utility model, the clamping assembly includes a fixing frame, the fixing frame is in a cross shape, and the fixing frame is arranged directly above the turntable.

[0009] As a preferred embodiment of the utility model, four mounting plates are vertically fixedly connected in a circular array on the top of the fixing frame, connecting holes are provided between the two sides of the mounting plates, a thin rod is connected through the inner wall of the connecting hole with a sliding fit, a chuck is fixedly connected to one end of the thin rod located on the inner side of the mounting plate, and an adjustment knob is also provided on the outer end of the mounting plate located outside the circumference of the thin rod.

[0010] As a preferred embodiment of the utility model, the adjusting knob is rotatably connected to the mounting plate, an internal thread is provided on the inner side of the circumference of the adjusting knob, an external thread is provided on the outer side of the circumference of the thin rod, and the thin rod is threadedly connected to the adjusting knob.

[0011] As a preferred embodiment of the utility model, a connecting groove is provided at the bottom center of the fixed frame, a connecting rod is vertically fixedly connected at the top center of the turntable, a connecting ball is provided on the top of the connecting rod, and the connecting ball is installed in a rotationally matched manner with the inner wall of the connecting groove.

[0012] As a preferred embodiment of the present utility model, the elastic structure includes four springs, which are distributed in a circular array and fixedly connected between the top and bottom of the turntable.

[0013] As a preferred embodiment of the utility model, a column is vertically fixed on the top of the base at a position on one side outside the circumference of the turntable, and the elastic structure also includes a magnetic block 1 and four magnetic blocks 2. The magnetic block 1 is fixedly installed on the top of the column, and the four magnetic blocks 2 are distributed in a circular array and fixedly connected to the bottom of the fixed frame at a position corresponding to the magnetic block 1, and the magnetic poles of the magnetic block 1 and the magnetic block 2 are the same when they are close to one end.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] Through the arranged turntable, the vibration mechanism is rotated as a whole, so that the workpiece on the fixed and clamping assembly is rotated, so that it can be heated evenly in a high temperature environment; and in the rotation process, through the arranged spring and the cooperation of the magnetic block 1 and the magnetic block 2, the fixed frame is vibrated, and the fixed frame is connected with the connecting ball in rotation and cooperation, so that the vibration directions of the fixed frame and the workpiece fixed on the fixed frame are complex and diverse, thereby greatly improving the effect of the high-temperature vibration experiment and ensuring the authority of the experimental results; at the same time, the vibration effect generated by the rotation action and the cooperation of the spring and the magnetic block 2 and the magnetic block 1 avoids the deformation and damage of the fixture caused by the collision between the fixture and the test unit, thereby improving the service life of the fixture.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion structure of the vibration mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the bottom structure of the clamping assembly of the utility model.

[0022] In the figure: 10, base; 11, supporting foot; 12, column; 13, magnetic block 1; 20, turntable; 21, connecting rod; 22, connecting ball; 30, servo motor; 31, shaft; 40, fixing bracket; 41, mounting plate; 42, connecting hole; 43, thin rod; 44, adjusting knob; 45, chuck; 46, magnetic block 2; 47, connecting groove; 50, spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0024] A high temperature vibration test fixture, such as Figure 1-2 As shown, it includes a base 10, and the outer side of the bottom circumference of the base 10 is fixedly connected with supporting feet 11 distributed in a circumferential array, and the top of the base 10 is provided with a vibration mechanism for workpiece vibration detection;

[0025] like Figure 2 As shown, the vibration mechanism includes a turntable 20 for rotation and a clamping assembly for fixing the workpiece. The turntable 20 is rotatably installed at the top center position of the base 10. A through hole is provided at the center position between the inside and the bottom of the base 10. A shaft rod 31 is rotatably installed through the inner wall of the through hole. One end of the top of the shaft rod 31 is fixedly connected to the bottom center position of the turntable 20. A servo motor 30 is fixedly installed at the bottom center position of the base 10, and the output shaft of the servo motor 30 is fixedly connected to one end of the bottom of the shaft rod 31. The clamping assembly is provided above the turntable 20, and an elastic structure for realizing vibration is also provided between the clamping assembly and the turntable 20.

[0026] like Figure 3 As shown, the clamping assembly includes a fixing frame 40 , which is in a cross shape and is disposed directly above the turntable 20 .

[0027] like Figure 3As shown, four mounting plates 41 are vertically fixedly connected in a circular array on the top of the fixing frame 40, connecting holes 42 are provided between the two sides of the mounting plates 41, and a thin rod 43 is connected by sliding through the inner wall of the connecting hole 42. The thin rod 43 is located on the inner side of the mounting plate 41 and is fixedly connected to a clamp 45, and an outer end of the mounting plate 41 is located on the outer side of the circumference of the thin rod 43 and an adjusting knob 44 is also provided.

[0028] like Figure 3 As shown, the adjusting knob 44 is rotationally connected to the mounting plate 41 , an internal thread is provided on the inner side of the circumference of the adjusting knob 44 , an external thread is provided on the outer side of the circumference of the thin rod 43 , and the thin rod 43 is threadedly matched with the adjusting knob 44 .

[0029] like Figure 3 As shown, a connecting groove 47 is provided at the bottom center of the fixing frame 40, a connecting rod 21 is vertically fixedly connected to the top center of the turntable 20, a connecting ball 22 is provided on the top of the connecting rod 21, and the connecting ball 22 is installed in a rotationally matched manner with the inner wall of the connecting groove 47.

[0030] Its function is to rotate the vibration mechanism as a whole through the provided turntable 20, thereby rotating the workpiece on the fixing and clamping assembly so that it can be heated evenly in a high temperature environment.

[0031] like Figure 3 As shown, the elastic structure includes four springs 50 , which are distributed in a circular array and fixedly connected between the top of the turntable 20 and the bottom of the turntable 20 .

[0032] like Figure 2 , Figure 4 As shown, a column 12 is vertically fixed on the top of the base 10 at a position on one side outside the circumference of the turntable 20, and the elastic structure also includes a magnet 13 and four magnets 2 46. The magnet 13 is fixedly installed on the top of the column 12, and the four magnets 2 46 are distributed in a circular array and fixedly connected to the bottom of the fixed frame 40 at the position corresponding to the magnet 13, and the magnet 1 13 and the magnet 2 46 have the same magnetic pole close to one end.

[0033] Its function is that, through the cooperation of the set spring 50 and the magnetic block 13 and the magnetic block 2 46, the fixed frame 40 generates a vibration effect, and the fixed frame 40 is rotationally coordinated with the connecting ball 22, so that the vibration directions of the fixed frame 40 and the workpiece fixed on the fixed frame 40 are complex and diverse, thereby greatly improving the effect of the high-temperature vibration experiment and ensuring the authority of the experimental results; at the same time, the vibration effect generated by the rotation effect and the cooperation of the spring 50 and the magnetic block 2 46 and the magnetic block 1 13 avoids the deformation and damage of the fixture caused by the collision between the fixture and the test unit, thereby improving the service life of the fixture.

[0034] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A high temperature vibration test fixture, comprising a base (10), characterized in that: The base (10) has support feet (11) fixedly connected to the outer side of the bottom circumference thereof in a circumferential array, and a vibration mechanism for workpiece vibration detection is arranged on the top of the base (10); The vibration mechanism comprises a rotating disc (20) for rotation and a clamping assembly for fixing a workpiece, wherein the rotating disc (20) is rotatably mounted at the top center position of the base (10), a through hole is provided at the center position between the inside and the bottom of the base (10), a shaft (31) is rotatably mounted through the inner wall of the through hole, one end of the top of the shaft (31) is fixedly connected to the bottom center position of the rotating disc (20), a servo motor (30) is fixedly mounted at the bottom center position of the base (10), and an output shaft of the servo motor (30) is fixedly connected to one end of the bottom of the shaft (31), the clamping assembly is arranged above the rotating disc (20), and an elastic structure for achieving vibration is also arranged between the clamping assembly and the rotating disc (20).

2. The high temperature vibration test fixture according to claim 1, characterized in that: The clamping assembly comprises a fixing frame (40), the fixing frame (40) is in the shape of a cross, and the fixing frame (40) is arranged directly above the rotating disk (20).

3. The high temperature vibration test fixture according to claim 2, characterized in that: Four mounting plates (41) are vertically fixedly connected to the top of the fixing frame (40) in a circumferential array arrangement. A connecting hole (42) is provided between the two sides of the mounting plate (41). A thin rod (43) is slidably connected through the inner wall of the connecting hole (42). A clamp (45) is fixedly connected to one end of the thin rod (43) located on the inner side of the mounting plate (41), and an adjusting knob (44) is also provided on the outer side of the circumference of the thin rod (43) at one end of the outer side of the mounting plate (41).

4. The high temperature vibration test fixture according to claim 3, characterized in that: The adjusting knob (44) is rotatably connected to the mounting plate (41); an internal thread is arranged on the inner side of the circumference of the adjusting knob (44); an external thread is arranged on the outer side of the circumference of the thin rod (43); and the thin rod (43) is threadably connected to the adjusting knob (44).

5. The high temperature vibration test fixture according to claim 4, characterized in that: A connecting groove (47) is provided at the center position of the bottom of the fixing frame (40), a connecting rod (21) is vertically fixedly connected to the center position of the top of the rotating disk (20), a connecting ball (22) is provided at the top of the connecting rod (21), and the connecting ball (22) is installed in a rotationally matched manner with the inner wall of the connecting groove (47).

6. The high temperature vibration test fixture according to claim 1, characterized in that: The elastic structure comprises four springs (50), which are distributed in a circular array and fixedly connected between the top of the turntable (20) and the bottom of the turntable (20).

7. The high temperature vibration test fixture according to claim 1, characterized in that: A column (12) is vertically fixed to the top of the base (10) at a position on one side outside the circumference of the turntable (20). The elastic structure also includes a magnetic block (13) and four magnetic blocks (46). The magnetic block (13) is fixedly installed on the top of the column (12). The four magnetic blocks (46) are distributed in a circular array and fixedly connected to the bottom of the fixed frame (40) at positions corresponding to the magnetic block (13). The magnetic poles of the magnetic block (13) and the magnetic block (46) are the same when they are close to one end.

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