Ultrasonic transducer assembly testing tool

Abstract

The utility model relates to a testing tool for an ultrasonic transducer assembly. The testing tool comprises a body and supporting plates fixedly arranged at the two ends of the body. A channel is formed in the body in the length direction of the body. The two sides of the channel are provided with test holes for placing the transducer assembly, and cover plates are installed at the joints of the test holes and the supporting plates. The ultrasonic transducer assembly testing tool is simple in structure and designed, the transducer assembly is effectively fixed under the condition that reliability and firmness are guaranteed, the material cost and the labor cost are reduced, the installation state of the transducer assembly on an ultrasonic flowmeter is simulated, and the testing precision is improved. According to the design, testing and assembling are more convenient, the testing damage rate is reduced, the technological process flexibility is improved, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic transducer components, and in particular relates to an ultrasonic transducer component testing tool. Background Art

[0002] At present, ultrasonic flowmeters on the market are slowly replacing Roots flowmeters and mechanical flowmeters. Compared with the former two meters, ultrasonic flowmeters have the advantages of high precision, small size, low noise, etc.; ultrasonic transducers, as the core components inside ultrasonic flowmeters, occupy a vital position in the entire product. Ultrasonic transducers are gas medium ultrasonic sensors that use acoustic matching materials to improve the transmission ability of ultrasonic signals in gas media; ultrasonic transducers will be assembled into ultrasonic transducer assemblies before being installed in ultrasonic flowmeters. The assemblies can effectively protect ultrasonic transducers and greatly extend the service life of ultrasonic transducers. The utility model aims to solve the problems of low working efficiency, instability, susceptibility to interference and "zero drift" of existing test ultrasonic transducer assemblies.

[0003] In view of the above problems, it is necessary to improve them. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrasonic transducer component testing tool with simple structure, ingenious design, optimized structure, improved process design, improved measurement accuracy and saved comprehensive use cost.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model patent is: an ultrasonic transducer assembly testing tool, including a main body and support plates fixed at both ends of the main body; a channel is formed in the main body along its length direction; test holes for placing the transducer assembly are provided on both sides of the channel, and a cover plate is installed at the connection between the test hole and the support plate.

[0006] As a preferred solution of the utility model, a magnet mounting groove for placing an annular magnet is formed on the outer side of the support plate, and an iron sheet mounting groove for installing an annular iron sheet is installed on the cover plate; the annular magnet and the annular iron sheet attract each other and are used to fix the ultrasonic transducer assembly.

[0007] As a preferred solution of the utility model, a limiting structure for positioning the transducer assembly is provided at the end of the test hole, and the flange surface of the transducer assembly is embedded in the limiting structure.

[0008] As a preferred solution of the utility model, a threading hole for passing a connecting wire of the transducer assembly is provided in the center of the cover plate.

[0009] As a preferred solution of the utility model, a connector is installed in the transducer assembly, and the connector is connected to the wire of the transducer assembly.

[0010] As a preferred solution of the utility model, a limiting rib with an annular structure is formed on one side of the cover plate close to the test hole. When the cover plate is assembled on the body, the limiting rib abuts against the flange surface of the transducer assembly.

[0011] As a preferred solution of the utility model, a limiting groove is symmetrically arranged on one side of the cover plate close to the test hole, and the limiting groove is located at the end of the cover plate.

[0012] As a preferred solution of the utility model, the limiting groove is a trumpet-shaped structure with a narrow bottom and a wide top, and inclined surfaces are formed on the inner walls on both sides of the limiting groove.

[0013] As a preferred solution of the utility model, the transducer assembly is provided with a groove, and an O-ring is installed on the groove.

[0014] As a preferred solution of the utility model, a horizontally placed plane is formed at the bottom of the support plate.

[0015] The beneficial effects of the utility model are:

[0016] The utility model has a simple structure and is designed to be a test fixture for ultrasonic transducer components. While ensuring reliability and firmness, it can effectively fix the transducer components, thereby reducing material and labor costs, and simulating the installation state of the transducer components on the ultrasonic flowmeter, thereby improving the test accuracy. The design makes the test assembly more convenient, reduces the test loss rate, improves the flexibility of the process, and improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the ultrasonic transducer assembly test fixture structure of the utility model embodiment;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the ultrasonic transducer assembly test fixture of the utility model embodiment;

[0019] Figure 3 This is a schematic diagram of a channel of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of a cover plate according to an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of a transducer assembly according to an embodiment of the utility model;

[0022] Explanation of the accompanying drawings: channel 1, test hole 1-A, limiting structure 1-B, magnet mounting groove 1-C, plane 1-D, cover plate 2, iron sheet mounting groove 2-A, threading hole 2-B, limiting groove 2-C, limiting rib 2-D, annular magnet 3, annular iron sheet 4, transducer assembly 5, flange surface 5-A, connector 5-B, O-ring 5-C, groove 5-D, inclined surface 6, main body 10, support plate 20. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] like Figure 1-5 As shown, an ultrasonic transducer assembly test fixture includes a main body 10 and support plates 20 fixed at both ends of the main body 10; a channel 1 is formed in the main body 10 along its length direction; test holes 1-A for placing transducer assemblies 5 are provided on both sides of the channel 1, and a cover plate 2 is installed at the connection between the test hole 1-A and the support plate 20; the channel 1 in this embodiment can be customized to different lengths to simulate ultrasonic flow meters of different calibers; the transducer assemblies in ultrasonic flow meters of different calibers are installed at different shooting distances.

[0027] The utility model has a simple structure and is designed to be a test fixture for ultrasonic transducer components. While ensuring reliability and firmness, it can effectively fix the transducer components, thereby reducing material and labor costs, and simulating the installation state of the transducer components on the ultrasonic flowmeter, thereby improving the test accuracy. The design makes the test assembly more convenient, reduces the test loss rate, improves the flexibility of the process, and improves the test efficiency.

[0028] A magnet mounting groove 1-C for placing the annular magnet 3 is formed on the outer side of the support plate 20, and an iron sheet mounting groove 2-A for installing the annular iron sheet 4 is installed on the cover plate 2; the annular magnet 3 and the annular iron sheet 4 attract each other and are used to fix the ultrasonic transducer assembly, wherein the annular magnet 3 and the annular iron sheet 4 can be fixed on the channel 1 and the cover plate 2 using metal adhesive glue.

[0029] A limiting structure 1-B for positioning the transducer assembly 5 is provided at the end of the test hole 1-A, and the flange surface 5-A of the transducer assembly 5 is embedded in the limiting structure 1-B; the limiting structure 1-B in the test hole 1-A needs to be 0.2-0.4mm larger than the outer dimensions of the ultrasonic transducer assembly; the test hole 1-A and the transducer assembly 5 cooperate with each other to achieve the limiting effect.

[0030] The cover plate 2 and the channel 1 are fixed together by a magnetic attraction structure. At the same time, a limiting rib 2-D with an annular structure is formed on the side of the cover plate 2 close to the test hole 1-A. When the cover plate 2 is assembled on the main body 10, the limiting rib 2-D abuts against the flange surface 5-A of the transducer assembly 5.

[0031] Specifically, the limiting rib 2 -D on the cover plate 2 will press the flange surface 5 -A on the transducer assembly 5 to achieve the effect of fixing the transducer assembly 5 .

[0032] A threading hole 2-B is provided at the center of the cover plate 2 for the connecting wire of the transducer assembly 5 to pass through. A connector 5-B is installed in the transducer assembly 5, and the connector 5-B is connected to the wire of the transducer assembly 5. The specific connection relationship is that the cover plate 2 is provided with a threading hole 2-B, and the threading hole 2-B is used for threading, so that the wire connecting the transducer 5 can pass through the threading hole 2-B and then connect to the connector 5-B on the transducer assembly 5.

[0033] A limiting groove 2-C is symmetrically arranged on one side of the cover plate 2 close to the test hole 1-A, and the limiting groove 2-C is located at the end of the cover plate 2. Specifically, the limiting groove 2-C is a trumpet-shaped structure with a narrow bottom and a wide top, and inclined surfaces 6 are formed on the inner walls on both sides of the limiting groove 2-C. By setting the limiting groove 2-C, a tool can be used to insert the groove 2-C and rotate it when separating the channel 1 and the cover plate 2, so that the two components can be easily separated, thereby improving the assembly efficiency between the two.

[0034] The transducer assembly 5 is provided with a groove 5-D, and an O-ring 5-C is installed on the groove 5-D; the transducer assembly 5 is provided with an O-ring 5-C, and after the transducer assembly 5 is inserted into the test hole 1-A of the channel 1, the O-ring 5-C and the test hole 1-A form a shaft sealing effect, so that related tests such as "zero drift" test and noise test can be carried out.

[0035] A horizontally placed plane 1-D is formed at the bottom of the support plate 20; using the above solution, the bottom of the support plate 20 is the plane 1-D, which can firmly place the channel to avoid the influence of shaking and other factors on the test of the transducer assembly 5.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0037] Although this article uses more of the following terms: channel 1, test hole 1-A, limiting structure 1-B, magnet mounting groove 1-C, plane 1-D, cover plate 2, iron sheet mounting groove 2-A, threading hole 2-B, limiting groove 2-C, limiting rib 2-D, annular magnet 3, annular iron sheet 4, transducer assembly 5, flange surface 5-A, connector 5-B, O-ring 5-C, groove 5-D, inclined surface 6, body 10, support plate 20, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An ultrasonic transducer assembly testing tool, characterized in that: The invention comprises a body (10) and support plates (20) fixedly arranged at two ends of the body (10); a channel (1) is formed in the body (10) along its length direction; test holes (1-A) for placing a transducer assembly (5) are arranged on both sides of the channel (1); a cover plate (2) is installed at the connection between the test hole (1-A) and the support plate (20).

2. The ultrasonic transducer assembly testing tool according to claim 1, characterized in that: The outer side of the support plate (20) is formed with a magnet mounting groove (1-C) for placing the annular magnet (3), and the cover plate (2) is provided with an iron sheet mounting groove (2-A) for mounting the annular iron sheet (4); the annular magnet (3) and the annular iron sheet (4) attract each other and are used to fix the ultrasonic transducer assembly.

3. The ultrasonic transducer assembly testing tool according to claim 1, characterized in that: A limiting structure (1-B) for positioning the transducer assembly (5) is provided at the end of the test hole (1-A), and a flange surface (5-A) of the transducer assembly (5) is embedded in the limiting structure (1-B).

4. The ultrasonic transducer assembly testing tool according to claim 2, characterized in that: The center of the cover plate (2) is provided with a threading hole (2-B) for passing a connecting wire for connecting the transducer assembly (5).

5. The ultrasonic transducer assembly testing tool according to claim 4, characterized in that: The transducer assembly (5) is equipped with a connector (5-B), and the connector (5-B) is connected to the wire of the transducer assembly (5).

6. The ultrasonic transducer assembly testing tool according to claim 1, characterized in that: A limiting rib (2-D) having an annular structure is formed on one side of the cover plate (2) close to the test hole (1-A); when the cover plate (2) is assembled on the body (10), the limiting rib (2-D) abuts against the flange surface (5-A) of the transducer assembly (5).

7. The ultrasonic transducer assembly testing tool according to claim 6, characterized in that: A limiting groove (2-C) is symmetrically arranged on one side of the cover plate (2) close to the test hole (1-A), and the limiting groove (2-C) is located at the end of the cover plate (2).

8. The ultrasonic transducer assembly testing tool according to claim 7, characterized in that: The limiting groove (2-C) is a trumpet-shaped structure with a narrow bottom and a wide top, and inclined surfaces (6) are formed on the inner walls on both sides of the limiting groove (2-C).

9. The ultrasonic transducer assembly testing tool according to claim 5, characterized in that: The transducer assembly (5) is provided with a groove (5-D), and an O-ring (5-C) is installed on the groove (5-D).

10. The ultrasonic transducer assembly testing tool according to claim 1, characterized in that: The bottom of the support plate (20) is formed with a horizontally placed plane (1-D).

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