Tool for water immersion method ultrasonic detection of small-specification convex ring piece

Abstract

The utility model belongs to the technical field of auxiliary tools for water immersion method ultrasonic detection, and particularly discloses a tool for water immersion method ultrasonic detection of a small-specification convex ring piece, which comprises a tightening knob, a connecting rod and a base, a threaded hole is formed in the middle of the base, and the upper end of the connecting rod is in threaded connection with the tightening knob. The lower end of the connecting rod extends into the threaded hole to be in threaded connection with the base and is sleeved with a backing ring, and the backing ring makes contact with the upper surface of the base. According to the tool for water immersion method ultrasonic detection of the small-specification convex ring piece, the detection blind area is reduced, ultrasonic detection of a plurality of products can be completed at a time, frequent loading and unloading are avoided, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of auxiliary tool for water immersion method ultrasonic detection, and relates to a tool for water immersion method ultrasonic detection of small-specification convex ring piece. BACKGROUND

[0002] GH4169 is a kind of precipitation strengthening nickel-based high-temperature alloy, with good comprehensive performance in-253~650 ℃ temperature range, can make various shape complex parts, and is widely used in aerospace, nuclear energy, petroleum industry and extrusion die.

[0003] In the production process of forgings, ultrasonic detection is widely used in the detection of internal cracks and other area defects of forgings.Ultrasonic detection can be divided into contact method and liquid immersion method according to contact method, and contact method is mostly used for manual detection, which is convenient to operate and suitable for the detection of most products;Liquid immersion method is mostly used for automatic detection, and mostly uses focused beam detection, with high detection sensitivity and good resolution, suitable for high sensitivity and high reliability product detection.

[0004] A kind of small-specification GH4169 convex ring piece produced by the company, because its diameter is small, wall is thin, contact method ultrasonic detection cannot meet the detection requirements;When using disc ring piece water immersion ultrasonic detection system, because the product specification is small, the ultrasonic detectable area is reduced after product clamping, there is a detection blind area, the detection precision is poor, and only one product can be detected each time, the detection efficiency is low, which seriously affects the detection progress of product.

[0005] Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims at overcoming the shortcomings in the prior art, providing a tool for water immersion method ultrasonic detection of small-specification convex ring piece, reducing the detection blind area, and completing ultrasonic detection of multiple products at a time, avoiding frequent loading and unloading, and improving the detection efficiency.

[0007] The utility model aims at overcoming the shortcomings in the prior art, providing a tool for water immersion method ultrasonic detection of small-specification convex ring piece, reducing the detection blind area, and completing ultrasonic detection of multiple products at a time, avoiding frequent loading and unloading, and improving the detection efficiency.

[0008] A tool for water immersion method ultrasonic detection of small-specification convex ring piece, comprising a tightening knob, a connecting rod and a base, a threaded hole is formed in the middle of the base, the upper end of the connecting rod is threadedly connected with the tightening knob, and the lower end of the connecting rod extends into the threaded hole and is threadedly connected with the base;

[0009] A grommet is provided on the lower end of the connecting rod, and the grommet is in contact with the upper surface of the base.

[0010] Further, the outer diameter of the grommet is greater than the inner diameter of the convex ring piece to be detected, and the inner diameter of the grommet is less than the minimum circumferential outer diameter of the convex ring piece to be detected.

[0011] Further, the tightening knob is a ring-shaped member.

[0012] Further, the outer diameter of the tightening knob is greater than the inner diameter of the detected convex ring member.

[0013] Further, the tightening knob, the connecting rod and the grommet are all made of nylon material.

[0014] Further, the outer wall of the tightening knob is provided with knurling.

[0015] Further, the connecting rod is a hollow pipe.

[0016] Further, the base is in the shape of a pie.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a kind of small-specification convex ring member water immersion method ultrasonic detection tool, by being provided with grommet between base and the detected convex ring member, so that the detected convex ring member and the upper surface of base exist certain height difference, to reduce the ultrasonic detection blind area of the lower end of the side wall of the detected convex ring member, improve detection accuracy;While before detection, multiple small-specification convex ring members can be placed on the tool, ultrasonic detection of multiple products is completed once, avoid frequent loading and unloading, improve detection efficiency.In addition, in the tool, grommet, connecting rod and tightening knob are all made of nylon material, can avoid that the inner surface, upper and lower end surface of convex ring member is scratched during being detected. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated into the specification and forming part of the specification, together with the specification, serve to explain the principle of the utility model.

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying.

[0021] Figure 1 It is the whole structure schematic diagram of the tool for small-specification convex ring member water immersion method ultrasonic detection provided by the utility model;

[0022] Figure 2 It is the split schematic diagram of the tool for small-specification convex ring member water immersion method ultrasonic detection provided by the utility model;

[0023] Figure 3 It is the working schematic diagram of the tool for small-specification convex ring member water immersion method ultrasonic detection provided by the utility model.

[0024] Wherein: 1 is the tightening knob; 101 is the internal thread of the knob; 2 is the connecting rod; 201 is the external thread; 3 is the washer ring; 4 is the base; 401 is the threaded hole; 5 is the convex ring; 6 is the focusing probe. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses consistent with some aspects of this invention as detailed in the appended claims.

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Please see Figure 1 and Figure 2 A tooling for ultrasonic testing of a small-sized convex ring by water immersion includes a tightening knob 1, a connecting rod 2 and a base 4. The base 4 has a threaded hole 401 in the middle. Both the upper and lower ends of the connecting rod 2 are provided with external threads 201. The upper end of the connecting rod 2 is threadedly connected to the tightening knob 1, and the lower end of the connecting rod 2 extends into the threaded hole 401 and is threadedly connected to the base 4.

[0028] A washer 3 is fitted onto the lower end of the connecting rod 2, and the lower end face of the washer 3 contacts the upper surface of the base 4. The washer 3 creates a certain height difference between the convex ring 5 being tested and the upper surface of the base 4, thereby reducing the ultrasonic testing blind zone at the lower end of the side wall of the convex ring 5 being tested, and thus improving the testing accuracy.

[0029] Furthermore, the tightening knob 1 is a ring-shaped part, and the inner wall of the tightening knob 1 is provided with an internal thread 101. The tightening knob 1 is threadedly connected to the upper end of the connecting rod 2 through the internal thread 101 and the external thread 201.

[0030] Furthermore, the outer diameter of the tightening knob 1 is larger than the inner diameter of the convex ring 5 being tested.

[0031] Furthermore, the outer wall of the tightening knob 1 is knurled.

[0032] Furthermore, the tightening knob 1, connecting rod 2, and washer 3 are all made of nylon to prevent the inner surface and upper and lower end faces of the convex ring 5 from being scratched during the testing process.

[0033] Furthermore, the outer diameter of the washer 3 is larger than the inner diameter of the convex ring 5 being tested, and the inner diameter of the washer 3 is smaller than the minimum circumferential outer diameter of the convex ring 5 being tested.

[0034] Furthermore, connecting rod 2 is a hollow tube.

[0035] Furthermore, base 4 is disc-shaped.

[0036] The installation process of the fixture for water immersion ultrasonic testing of small-sized convex rings and the small-sized convex ring 5 to be tested is as follows:

[0037] (1) Insert the washer 3 into the lower end of the connecting rod 2 so that the lower surface of the washer 3 coincides with the upper surface of the base 4, and fix the connecting rod 2 on the base 4.

[0038] (2) Place the assembled tool on the turntable of the water immersion flaw detection system, and make the three-jaw clamping mechanism on the turntable clamp the outer circumference of the base 4.

[0039] (3) The small-sized convex ring 5 to be inspected is prepared according to... Figure 3 The small convex ring 5 to be tested is sequentially fitted onto connecting rod 2 as shown. When placing the small convex ring 5 to be tested, care should be taken to remove all air bubbles from the surface of the convex ring 5 to be tested.

[0040] (4) After the small-sized convex ring 5 to be tested is installed, rotate the tightening knob 1 to clamp the convex ring 5 to be tested, ensuring that the convex ring 5 does not shift during the testing process.

[0041] The steps for performing water immersion ultrasonic testing on a small-sized convex ring using the tooling provided in this application are as follows:

[0042] (1) Inspecting the small diameter outer circumference of the small-sized convex ring 5: Adjust the water immersion testing system so that the focusing probe 6 is aligned with the outer circumference of the convex ring 5 at the bottom and adjust the appropriate water distance and testing parameters. Rotate the turntable so that the testing fixture and the convex ring 5 being tested rotate with the turntable. The focusing probe 6 inspects the small diameter outer circumference of the convex ring 5 from bottom to top.

[0043] (2) Inspecting the large diameter outer circumferential surface of the small-diameter convex ring 5: After the small diameter outer circumferential surface is inspected, adjust the water immersion flaw detection system so that the focusing probe 6 is aligned with the large diameter outer circumferential surface of the convex ring 5 at the bottom. Adjust the appropriate water distance and detection parameters, rotate the turntable so that the inspection fixture and the convex ring 5 being inspected rotate with the turntable. The focusing probe 6 inspects the large diameter outer circumferential surface of the convex ring 5 from bottom to top.

[0044] The foregoing merely illustrates the principles of the application and various modifications can be devised by those skilled in the art without departing from the spirit or scope of the application. The appended claims are intended to embrace any and all changes and modifications within the scope of the present application.

[0045] It is to be understood that the application is not limited to the details described herein and that various modifications can be made without departing from the scope of the application. The application is intended to cover any and all modifications within the scope of the following claims.

Claims

1. A fixture for ultrasonic testing of small-sized convex rings using the water immersion method, characterized in that, It includes a tightening knob (1), a connecting rod (2) and a base (4). The base (4) has a threaded hole (401) in the middle. The upper end of the connecting rod (2) is threaded to the tightening knob (1), and the lower end of the connecting rod (2) extends into the threaded hole (401) and is threaded to the base (4). The lower end of the connecting rod (2) is fitted with a washer (3), which is in contact with the upper surface of the base (4).

2. The fixture for ultrasonic testing of small-sized convex rings by water immersion method according to claim 1, characterized in that, The outer diameter of the washer (3) is greater than the inner diameter of the convex ring (5) being tested, and the inner diameter of the washer (3) is less than the minimum circumferential outer diameter of the convex ring (5) being tested.

3. The fixture for ultrasonic testing of small-sized convex rings by water immersion method according to claim 1, characterized in that, The tightening knob (1) is a ring-shaped component.

4. The fixture for ultrasonic testing of small-sized convex rings by water immersion method according to claim 3, characterized in that, The outer diameter of the tightening knob (1) is larger than the inner diameter of the convex ring (5) being tested.

5. The fixture for ultrasonic testing of small-sized convex rings by water immersion method according to claim 1, characterized in that, The tightening knob (1), connecting rod (2) and washer (3) are all made of nylon.

6. The fixture for ultrasonic testing of small-sized convex rings by water immersion method according to claim 1, characterized in that, The outer wall of the tightening knob (1) is knurled.

7. The fixture for ultrasonic testing of small-sized convex rings by water immersion method according to claim 1, characterized in that, The connecting rod (2) is a hollow tube.

8. The fixture for ultrasonic testing of small-sized convex rings by water immersion method according to claim 1, characterized in that, The base (4) is shaped like a disc.

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