CN211785345U

CN211785345U - Handheld TOFD scanning frame with automatic couplant adding function

Info

Publication number: CN211785345U
Application number: CN202020190898.4U
Authority: CN
Inventors: 曾成刚; 曾康洋; 滕艳; 何传军
Original assignee: Shenzhen Taike Test Co ltd
Current assignee: Taike Technology Co ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-10-27
Anticipated expiration: 2030-02-21

Abstract

The utility model discloses a hand-held TOFD scanning frame with automatic couplant adding function, which comprises a self-adaptive ultrasonic probe support structure, an adjustable T-shaped body structure, a walking structure with an encoding function and a hand-held handle structure; the self-adaptive ultrasonic probe support structure, the walking structure with the encoding function and the handheld handle structure are respectively connected with the adjustable T-shaped machine body structure. The utility model discloses an automation of couplant is paintd and has been guaranteed the homogeneity of painting thickness, improves work efficiency, practices thrift the cost, and stable even coupling layer medium has improved ultrasonic probe's coupling performance, makes its detection in multiple thickness joint area have better performance.

Description

Handheld TOFD scanning frame with automatic couplant adding function

Technical Field

The utility model relates to an ultrasonic flaw detection instrument technical field especially relates to a handheld TOFD sweeps and examines frame with automatically, add couplant.

Background

The ultrasonic diffraction time difference method (TOFD) is a method for detecting defects by means of diffraction energy obtained from an end angle and an end point in a test piece to be detected, and a scanning frame is an essential instrument in the TOFD detection process and can carry an ultrasonic probe to move on the surface of a detected material to realize ultrasonic scanning of the detected object. However, the common scanning frame generally needs an operator to manually smear the coupling agent in a scanning area of the butt joint to be detected in advance, so that the next scanning operation can be performed. Due to the fact that the uniformity of the thickness of the coating cannot be guaranteed by manually coating the couplant, the probe of the scanner cannot effectively contact the detected surface, so that the detection rate of defects is low, the reliability is low, and further a series of problems that TOFD (time of flight diffraction) spectrum detection is easy to interrupt, repeated scanning is carried out, the spectrum is unqualified, resource cost is wasted and the like are caused. Therefore, a handheld TOFD scanning frame capable of uniformly and efficiently automatically adding a coupling agent is needed.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a handheld TOFD scanning frame with automatically, add couplant.

The purpose of the utility model is realized through the following technical scheme:

a handheld TOFD scanning rack with automatic couplant addition, comprising: comprises a self-adaptive ultrasonic probe bracket structure (1), an adjustable T-shaped body structure (2), a walking structure (3) with an encoding function and a hand-held handle structure (4); the self-adaptive ultrasonic probe support structure (1), the walking structure (3) with the encoding function and the handheld handle structure (4) are respectively connected with the adjustable T-shaped body structure (2).

Compared with the prior art, the utility model discloses an advantage can have as follows to one or more embodiments:

the automatic smearing of the coupling agent is realized, the working efficiency is improved, the cost is saved, the coupling performance of the ultrasonic probe is improved by the stable and uniform coupling layer medium, and the detection of the ultrasonic probe in joint areas with various thicknesses is better represented.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the adaptive ultrasound probe support structure of the present invention;

fig. 3 is a schematic structural diagram of the liquid-injectable wedge of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

As shown in fig. 1, the overall structure diagram of the handheld TOFD scanning frame with automatic couplant addition is shown, and the handheld TOFD scanning frame comprises a self-adaptive ultrasonic probe support structure 1, an adjustable T-shaped body structure 2, a walking structure 3 with an encoding function, and a handheld handle structure 4; the self-adaptive ultrasonic probe support structure 1, the walking structure 3 with the coding function and the handheld handle structure 4 are respectively connected with the adjustable T-shaped body structure 2.

As shown in fig. 2, the adaptive ultrasonic probe holder structure 1 is composed of a movable limiting box 101, a return spring 102, a wedge connecting frame 103 and a liquid injection wedge 104; the liquid injection wedge block 104 is connected with the wedge block connecting frame 103 through a bolt, and the angle of the liquid injection wedge block 104 is adjusted through an axis around the length direction of the bolt; the wedge connecting frame 103 is in clearance fit with the movable limiting box 101, vertically moves along the movable limiting box 101, and is reset and adjusted through the reset spring 102.

As shown in fig. 3, the upper part of the liquid injection wedge 104 is provided with a first liquid injection pipe connecting port 105, a second liquid injection pipe connecting port 107 and an ultrasonic probe 106; the bottom is jointed with the detection surface, and a first liquid outlet 108 and a second liquid outlet 109 are arranged at the joint; the first liquid outlet 108 and the second liquid outlet 109 are communicated with the first pour-spout connecting port 105 and the second pour-spout connecting port 107, respectively.

The self-adaptive ultrasonic probe support structure 1 is connected with the adjustable T-shaped body structure 2 through a T-shaped nut and can change the horizontal position along the aluminum profile; the walking structure 3 with the coding function is connected with the adjustable T-shaped body structure 2 through a T-shaped bolt; the handle structure 4 is connected with the adjustable T-shaped body structure 2 through a T-shaped bolt.

The above embodiments, when in use: when an operator moves the scanning frame, the couplant is controlled to enter the wedge block through the pipeline connection through the wedge block liquid injection pipe connection port, and finally sprayed to a detection area below the ultrasonic probe from a small hole at the joint of the detection surface to form a uniform coupling layer medium.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A handheld TOFD scanning frame with an automatic couplant adding function is characterized by comprising a self-adaptive ultrasonic probe support structure (1), an adjustable T-shaped body structure (2), a walking structure (3) with an encoding function and a handheld handle structure (4); the self-adaptive ultrasonic probe support structure (1), the walking structure (3) with the encoding function and the handheld handle structure (4) are respectively connected with the adjustable T-shaped body structure (2).

2. The hand-held TOFD scanning rack with automatic couplant addition according to claim 1, wherein the adaptive ultrasonic probe support structure (1) is composed of a movable limit box (101), a return spring (102), a wedge block connecting rack (103) and a liquid injection wedge block (104);

the liquid injection wedge block (104) is connected with the wedge block connecting frame (103) through a bolt, and the angle of the liquid injection wedge block (104) is adjusted through an axis around the length direction of the bolt;

the wedge block connecting frame (103) is in clearance fit with the movable limiting box (101), vertically moves along the movable limiting box (101), and is reset and adjusted through the reset spring (102).

3. The hand-held TOFD scanning rack with automatic couplant addition according to claim 2 wherein said injectable wedge (104) is provided at its upper part with a first injection tube connection port (105), a second injection tube connection port (107) and an ultrasonic probe (106); the bottom is jointed with the detection surface, and a first liquid outlet (108) and a second liquid outlet (109) are arranged at the joint;

the first liquid outlet (108) and the second liquid outlet (109) are respectively communicated with the first liquid injection pipe connecting port (105) and the second liquid injection pipe connecting port (107).

4. The hand-held TOFD scanning rack with automatic couplant addition according to claim 1,

the self-adaptive ultrasonic probe support structure (1) is connected with the adjustable T-shaped body structure (2) through a T-shaped nut and can change the horizontal position along the aluminum profile;

the walking structure (3) with the coding function is connected with the adjustable T-shaped body structure (2) through a T-shaped bolt;

the handheld handle structure (4) is connected with the adjustable T-shaped body structure (2) through a T-shaped bolt.