CN210199029U

CN210199029U - Welding seam simulation test block for welding seam three-dimensional size detection equipment calibration

Info

Publication number: CN210199029U
Application number: CN201920269487.1U
Authority: CN
Inventors: Jianxun Chen; 陈建勋; Yinghong Chen; 陈英红; Ningxiang Yang; 杨宁祥; Minjian Liang; 梁敏健
Original assignee: Guangdong Inspection and Research Institute of Special Equipment Zhuhai Inspection Institute
Current assignee: Guangdong Inspection and Research Institute of Special Equipment Zhuhai Inspection Institute
Priority date: 2019-03-04
Filing date: 2019-03-04
Publication date: 2020-03-27
Anticipated expiration: 2029-03-04

Abstract

The utility model relates to a welding seam simulation test block for calibration of welding seam three-dimensional size check out test set, welding seam simulation test block main part is the semicircular cylinder for the cross-section, welding seam simulation test block main part both ends have two handles, have the characteristic dimension of simulation welding seam shape along axial machining in the welding seam simulation test block main part, characteristic dimension includes welding seam undercut degree of depth, welding seam surplus height, welding seam width, welded joint unfitness of butt joint, welding arris angle. Whether the detection function that the welding seam simulation test block can be used to detect welding seam three-dimensional size check out test set is normal, provides the reference foundation for the accuracy that each characteristic dimension of instrument butt weld detected.

Description

Welding seam simulation test block for welding seam three-dimensional size detection equipment calibration

Technical Field

The utility model belongs to welding inspection field relates to the multi-parameter quantitative determination of welding seam surface welding quality, concretely relates to welding seam simulation test block that is used for the calibration of welding seam three-dimensional size check out test set.

Background

The good welding quality has important significance for the safe operation of pressure-bearing special equipment such as pressure pipelines, pressure containers and the like. Due to improper control of the welding process, especially under the condition of manual welding, the defects of stress concentration, accelerated corrosion rate, external deformation and the like of a pressure pipeline or a pressure container can be caused by excessive weld height, undercut, misalignment, edge angle and other characteristic dimensions in a welding joint, so that the normal service cycle of equipment can be shortened, and potential safety hazards can be generated. GB150 pressure vessel makes specific dimensional regulations for sizes such as welding joint misalignment amount, edge angle and the like of base metal welding seams with different thicknesses, and inspectors measure characteristic sizes of the welding seams by means of tools such as steel plate rulers and welding seam inspection rulers in the appearance inspection process of pressure-bearing special equipment. However, the inspection by the conventional tool is often low in inspection accuracy and detection efficiency. The welding seam three-dimensional size detection equipment can be used for quickly and quantitatively detecting each characteristic size of the welding seam, the detection precision is improved, the labor intensity is reduced, and the test accuracy of the detection equipment needs to be verified and calibrated before testing due to the fact that an instrument is used for detection. Therefore, it is necessary to provide a weld simulation test block for calibration of a weld three-dimensional dimension detection apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provided a welding seam simulation test block for welding seam three-dimensional size check out test set calibration, this test block adopts machining preparation, contains various artificial welding seam standard characteristic dimension on the test block to simulate actual welding seam structure, can verify welding seam three-dimensional size check out test set accuracy.

In order to solve the technical problem, the utility model discloses the technical scheme who takes does:

a weld simulation test block for calibrating a weld three-dimensional inspection device, comprising: the test block comprises a test block main body, a simulated welding seam calibration layer arranged on the test block main body, and a handle arranged on the test block main body.

Furthermore, the test block main body is a cylinder with a semicircular cross section, the arc surface of the cylinder is axially provided with the simulated weld calibration layer, and two end faces of the cylinder are respectively connected with the first handle and the second handle.

Further, the simulation welding seam calibration layer is provided with the standard characteristic dimension of the simulation welding seam structure, and the standard characteristic dimension includes: the undercut depth of the welding seam, the width of the welding seam, the surplus height of the welding seam, the misalignment amount and the edge angle.

Furthermore, the range of the seam undercut depth is 0-3mm, the range of the seam width is 5-25mm, the range of the seam allowance is 0-3mm, the range of the misalignment amount is 0-7mm, and the range of the edge angle is 0-4 mm.

Furthermore, the first handle and the second handle are respectively connected with two end faces of the test block main body through welding or threaded connection.

Further, the diameter range of the column body is 100-500mm, and the length range of the test block body is 30-500 mm.

The utility model discloses an useful part lies in:

1) the simulation test block is manufactured in a material reduction manufacturing mode instead of a direct welding mode, and the characteristic sizes of various welding seams on the simulation test block can achieve high precision, so that the purpose of instrument calibration is achieved;

2) the same test block contains standard weld joint characteristic dimensions such as undercut, weld joint residual height, misalignment, edge angle and the like, and can simultaneously realize the detection precision verification of the three-dimensional weld joint dimension detection equipment on the various characteristic dimensions.

Drawings

Fig. 1 is a perspective view of the welding seam simulation test block of the utility model.

Fig. 2 is a side view of the welding seam simulation test block of the utility model.

Fig. 3 is a cross-sectional view of the welding seam simulation test block of the utility model.

Fig. 4 is a schematic diagram of a standard characteristic dimension structure of the simulated weld calibration layer of the present invention.

The test block comprises a test block body 1, a simulated weld joint calibration layer 2, a first handle 3 and a second handle 4.

Detailed Description

Example 1:

according to the utility model discloses an embodiment, fig. 1 is the utility model discloses welding seam simulation test block stereogram, fig. 2 is the utility model discloses welding seam simulation test block side view, fig. 3 is the utility model discloses welding seam simulation test block cross sectional view, it is shown with reference to fig. 1-3 to refer to, a welding seam simulation test block for calibration of welding seam three-dimensional size check out test set, including test block main part 1, simulation welding seam calibration layer 2, the first in command 3 and the second in command 4. The test block main body is a long-strip-shaped cylinder with a semicircular section. The simulated weld calibration layer is arranged on the lateral cylindrical surface of the test block main body along the axial direction (the length L direction shown in the figure), and the specific position is not particularly limited. And a first handle and a second handle are respectively arranged on two end faces of the test block main body and are connected with the two end faces of the test block main body in a welding mode. The diameter of the semicircle of the section of the test block main body is 200mm, and the length L of the test block main body is 300 mm. The first and second handles may be shaped as shown in fig. 1 and 2, but may be shaped as other handles.

Fig. 4 is the utility model discloses the standard characteristic dimension structural diagram on simulation welding seam calibration layer, it is shown with reference to fig. 4, and the standard characteristic dimension of simulation welding seam structure mainly includes undercut degree of depth U, welding seam width B, welding seam surplus height H, unfitness of butt joint W and edges and corners E. Wherein the undercut depth is 2.5mm, the weld width is 15mm, the weld height is 1.5mm, the misalignment amount is 0.5mm, and the edge angle is 2.1 mm.

Example 2:

according to another embodiment of the present invention, referring to fig. 1-3, a weld simulation test block for calibrating a weld three-dimensional size detection device comprises a test block main body 1, a simulation weld calibration layer 2, a first handle 3 and a second handle 4. The test block main body is a long-strip-shaped cylinder with a semicircular section. The simulated weld seam alignment layer is arranged on the lateral cylindrical surface of the test block main body, such as the arc top, along the axial direction (the length direction shown in the figure). The two end faces of the test block main body are respectively provided with a first handle and a second handle, and the first handle and the second handle are connected with the two end faces of the test block main body in a threaded connection mode. The diameter of the semicircle of the section of the test block main body is 300mm, and the length L of the test block main body is 350 mm. The first and second handles may be shaped as shown in fig. 1 and 2, but may be shaped as other handles.

Referring to fig. 4, the standard characteristic dimensions of the simulated weld structure mainly include undercut depth U, weld width B, weld height H, misalignment W, and edge angle E. Wherein the undercut depth is 2.1mm, the weld width is 18mm, the weld height is 1.1mm, the misalignment amount is 0.7mm, and the edge angle is 1.7 mm.

It will be appreciated that the present invention is actually intended to simulate an axial weld on a pipe or cylindrical vessel, i.e. in the direction of the length L as shown.

In summary, the simulation test block of the utility model is manufactured by a material reduction manufacturing mode rather than a direct welding mode, and the characteristic sizes of various welding seams on the simulation test block can reach higher precision, thereby achieving the purpose of instrument calibration; and the same test block contains various standard weld joint characteristic sizes such as undercut, weld joint residual height, misalignment, edge angle and the like, and the detection precision verification of the weld joint three-dimensional size detection equipment on various characteristic sizes can be realized simultaneously.

The above description is only a preferred example of the present invention and should not be taken as limiting the invention, and any modification, equivalent replacement and improvement made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A welding seam simulation test block for calibrating a welding seam three-dimensional size detection device is characterized by comprising: the test block main part, the test block main part is that the cross section is semicircular cylinder, be equipped with simulation welding seam alignment layer along the axial on the cambered surface of cylinder, the both ends face of cylinder is connected with the first in command and the second in command respectively, simulation welding seam alignment layer is equipped with the standard characteristic dimension of simulation welding seam structure, standard characteristic dimension includes: the undercut depth of the welding seam, the width of the welding seam, the surplus height of the welding seam, the misalignment amount and the edge angle.

2. The weld simulation test block according to claim 1, wherein the weld undercut depth ranges from 0 to 3mm, the weld width ranges from 5 to 25mm, the weld height ranges from 0 to 3mm, the misalignment ranges from 0 to 7mm, and the edge angle ranges from 0 to 4 mm.

3. The weld simulation test block according to claim 1, wherein the first handle and the second handle are connected to both end surfaces of the test block body by welding or screwing, respectively.

4. The weld simulation test block according to claim 1, wherein the column has a diameter in the range of 100-500mm, and the length of the test block body is in the range of 30-500 mm.