CN218239255U

CN218239255U - Sample mounting fixture for vibration test bed

Info

Publication number: CN218239255U
Application number: CN202221878082.6U
Authority: CN
Inventors: 李波; 赵康; 徐晓; 雷雨田; 关波; 巨欢; 肖兴盛; 陈凯
Original assignee: Xian Fast Auto Drive Co Ltd
Current assignee: Xian Fast Auto Drive Co Ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-01-06
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses a sample mounting clamp for a vibration test bed, which comprises a base, a clamp main body and a conversion head; the clamp main body is of a cubic structure, the clamp main body and the base are of an integrated structure, the clamp is fixed on the vibration table top through a mounting hole in the base, the clamp main body comprises five sample mounting surfaces, a plurality of threaded holes are formed in the mounting surfaces, one end of the conversion head is an external thread matched with the threaded holes and is correspondingly mounted in the threaded holes, the other end of the conversion head is an internal thread matched with a test sample, and the test sample is mounted on the clamp main body through the conversion head. Offer the commonly used sample mounting hole of unidimensional not on the installation face of anchor clamps main part, to the test sample not commonly used, connect on sample sectional fixture through the conversion head, abundant utilization the installation space of anchor clamps, with the anchor clamps integration of multiple model on a sectional fixture, the commonality is strong, can carry out vibration test to the test sample of isostructure not, has improved the efficiency of test work.

Description

Sample mounting clamp for vibration test bed

Technical Field

The utility model belongs to the technical field of the vibration test equipment makes, a sample sectional fixture for vibration test platform is related to.

Background

The electronic related parts of the automobile mounted on the whole automobile are excited by random vibration caused by rough road along with the whole automobile, and the parts mounted on the engine are simultaneously excited by sinusoidal vibration from the engine, and the parts are required to work normally under the condition of bumping and vibration. Therefore, strict multidirectional random, sinusoidal and other vibration tests on the test bed of the parts on the vehicle are required to verify the structural fatigue strength, the working performance and the stability of the parts. In the vibration test, the test specimen is usually fixed on a vibration table by a vibration test fixture, and the vibration energy of the vibration table is transmitted to the tested object, so the test fixture is an important component of the vibration test. In order to ensure the accuracy of the test, different work fixtures need to be designed for different test objects during the test. Many problems also arise due to the specificity of the test fixture. The test fixture is redesigned and manufactured aiming at the sample in each test, so that the workload is increased, the test progress is delayed, the waste is caused, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve among the prior art and need design different test fixture to different vibration test part to delayed experimental progress and caused the problem of cost-push, provide a sample sectional fixture for vibration test platform.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

(where content is finalized and supplemented by I)

Compared with the prior art, the utility model discloses following beneficial effect has:

through set up sample mounting hole commonly used on a plurality of sample installation faces at the anchor clamps main part, to the test sample not commonly used, can connect on sample sectional fixture through the conversion head, abundant utilization the installation space of anchor clamps, with the anchor clamps integration of multiple model on a sectional fixture, the commonality is strong, can carry out vibration test to the test sample of isostructure not, very big improvement test work's efficiency.

Furthermore, a vibration sensor thread mounting hole is formed in the base, and a multipoint control technology can be conveniently adopted to monitor the test vibration quantity value through mounting the vibration sensor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

FIG. 1 is a schematic view of a sample mounting fixture for a vibration testing stand according to the present invention;

fig. 2 is a schematic view of a sample mounting fixture for a vibration test stand according to the present invention;

fig. 3 is a schematic perspective view of the switching head of the present invention;

FIG. 4 is a schematic view of a test sample.

Wherein: 1-a base; 2-a clamp body; 3-base mounting holes; 4-M18 threaded holes; 5-M16 threaded holes; 6-mounting holes for vibration sensors; 7-a conversion head; 8-test sample.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "set", "mounted", "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1 and 2, a schematic diagram of a sample mounting fixture for a vibration test bed of the present invention includes a base 1, a fixture main body 2 and a conversion head 7, the fixture main body 2 is a cubic structure, the fixture main body 2 and the base 1 are an integrated structure, the integrated base 1 and fixture main body 2 are machined from a monolithic aluminum alloy, the fixture main body 2 has light weight, good rigidity and good vibration characteristics, the fixture main body 2 includes five sample mounting surfaces, each mounting surface is provided with a threaded hole adapted to a test sample for mounting and fixing the test sample, so that the sample can vibrate in multiple directions, such as radial direction and axial direction, the mounting surface is provided with a plurality of M18 threaded holes 4 and a plurality of M16 threaded holes 5, the five sample mounting surfaces are provided with 20M 18 threaded holes 4 and 12M 16 threaded holes 5, one end of the conversion head 7 is an external thread of M18 or M16, the conversion head is installed in the M18 threaded hole or M16 threaded hole, the other end is an internal thread of M14 or M10, the conversion head 7 includes an external thread of M18 1.5 in a rotation, M14, 1.5, M1.5/10, M1.1.1/10G 1.1.10G 1.1.9-9; external threads M16 by 1.5 turns, M14 by 1.5/M10 by 1/M10 by 1.25/G1/2-B/9/16-18 and the like; the device is suitable for installing odometer sensors, pressure switches, air pressure sensors or temperature sensors and the like with various types and sizes; base 1 adopts the disc structure, has evenly set up 8 through-holes at base 1's peripheral annular, for base mounting hole 3, base mounting hole 3 passes through the screw hole inseparable, the rigid connection on bolt and the vibration mesa, transmits the excitation force of prescribing on the shaking table frame for test sample. In addition, 4 threaded holes are reserved in the base 1, a plurality of vibration sensors can be conveniently mounted for the vibration sensor mounting holes 6, and the test vibration value is monitored by adopting a multipoint vibration control technology.

The utility model discloses a concrete working process does:

the base 1 is fastened and connected to a vibration test table board by eight M16 screws through base mounting holes 3 which are uniformly distributed on the periphery of the base in an annular mode; the test sample with the mounting thread of M18 comprises an odometer sensor or a pressure switch and the like, and can be directly mounted in M18 threaded holes 4 on different mounting surfaces of the clamp body 2 according to different vibration directions; the test sample with the mounting thread of M16 comprises an odometer sensor or a pressure switch and the like, and can be directly mounted in the M16 threaded holes 5 on different mounting surfaces of the clamp body 2 according to different vibration directions; test samples with threads of other diameters, including an odometer sensor, a pressure switch, an air pressure sensor or a temperature sensor and the like, can be firstly installed on the conversion head 7 with corresponding dimensions, and then the conversion head 7 and the test samples are installed on the corresponding clamp main body 2 according to different vibration directions and in the threaded

holes

4 and 5 of the M18 or M16 corresponding to different installation surfaces of the samples; meanwhile, four M10 vibration sensor mounting holes 6 are further distributed on the base 1 and used for fixing the vibration sensors.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample mounting clamp for a vibration test bed is characterized by comprising a base (1), a clamp main body (2) and a conversion head (7);

the clamp comprises a clamp body (2), and is characterized in that the clamp body (2) is of a cubic structure, the clamp body (2) and a base (1) are of an integrated structure, the clamp body (2) comprises five sample mounting surfaces, a plurality of threaded holes are formed in the mounting surfaces, one end of a conversion head (7) is an external thread matched with the threaded holes and is correspondingly mounted in the threaded holes, the other end of the conversion head is an internal thread matched with a test sample (8), and the test sample (8) is mounted on the clamp body (2) through the conversion head (7).

2. A specimen mounting fixture for vibration testing stand according to claim 1, characterized in that the base (1) is of disc structure.

3. The sample mounting fixture for the vibration test bed as claimed in claim 1 or 2, wherein the base (1) is uniformly distributed with a plurality of base mounting holes (3) along the circumference for fixing the base (1) on the vibration test bed.

4. The sample mounting fixture for the vibration test bed as claimed in claim 1, wherein the base (1) is provided with a plurality of vibration sensor mounting holes (6) for mounting the vibration sensors.

5. A specimen mount jig for a vibration testing stand according to claim 4, characterized in that the vibration sensor mount holes (6) are opened symmetrically with respect to the radial direction of the base (1).

6. A specimen mounting fixture for a vibration testing stand according to claim 4 or 5, characterized in that the vibration sensor mounting hole (6) is an M10 threaded hole.

7. A specimen mounting fixture for vibration testing stand according to claim 1 characterized in that the integrated base (1) and fixture body (2) are machined from a single piece of aluminum alloy.

8. The specimen mounting fixture for a vibration testing stand of claim 1 wherein the threaded holes on the mounting surface include an M18 threaded hole and an M16 threaded hole.

9. The specimen mounting fixture for the vibration testing stand as set forth in claim 8, wherein said M18 screw holes are provided in a total of 20 on five specimen mounting faces, and said M16 screw holes are provided in a total of 12 on five specimen mounting faces.