CN215493331U

CN215493331U - Welding quality detection device for welding seam

Info

Publication number: CN215493331U
Application number: CN202121212001.4U
Authority: CN
Inventors: 赵幼芳
Original assignee: Hunan Mechanical and Electrical Polytechnic
Current assignee: Hunan Mechanical and Electrical Polytechnic
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-01-11
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses a welding seam welding quality detection device which comprises an ultrasonic flaw detector and an inclined joint arranged on the ultrasonic flaw detector, wherein an auxiliary frame used for placing the inclined joint is arranged on one side of the ultrasonic flaw detector, connecting guide rods are fixedly arranged on the outer walls of two sides of the auxiliary frame, inclined plates are arranged on the outer walls of two sides of the auxiliary frame through the connecting guide rods, transverse guide wheels are rotatably arranged on the lower sides of the inclined plates in a uniformly distributed mode, return springs are arranged on the outer walls of the circumferences of the connecting guide rods, one ends of the return springs are fixedly connected with the upper ends of the inclined plates, the other ends of the return springs are fixedly connected with the outer walls of two sides of the auxiliary frame, a connecting frame is arranged at the lower end of the auxiliary frame, the outer edge of the lower end of the connecting frame is in a round-corner shape, and a cotton cloth piece is pasted on the lower surface of the connecting frame. The ultrasonic welding line detection device detects the welding line by utilizing ultrasonic waves, can be suitable for welding line detection modes at different positions, and is simple to operate.

Description

Welding quality detection device for welding seam

Technical Field

The utility model relates to the technical field of detection devices, in particular to a welding quality detection device for a welding seam.

Background

Welding, also known as fusion welding, is a manufacturing process and technique for joining metals or other thermoplastic materials, such as plastics, by means of heat, high temperature or high pressure.

The joint formed during welding that connects two joined bodies is called a weld. Both sides of the weld are subjected to welding heat during welding to cause structural and performance changes, and this region is called a heat affected zone. During welding, due to different welding materials and welding currents of workpiece materials, overheating, embrittlement, hardening or softening phenomena may occur in a welding seam and a heat affected zone after welding, so that the performance of a welded part is reduced, and the weldability is deteriorated. The welding conditions need to be adjusted, and the welding quality of the weldment can be improved by preheating the interface of the weldment before welding, preserving heat during welding and performing heat treatment after welding;

however, after the welding operation is completed, the quality of the welding seam needs to be detected to ensure that the welding quality meets the technological parameter level, and the methods adopted at present are roughly classified into nondestructive detection and damage detection, but the welding seam surfaces in two groups of detection modes are uneven, and the data obtained in the detection process is not accurate enough, so that a welding seam welding quality detection device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a welding quality detection device for a welding seam.

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

a welding seam welding quality detection device comprises an ultrasonic flaw detector and an inclined joint arranged on the ultrasonic flaw detector, wherein an auxiliary frame for placing the inclined joint is arranged on one side of the ultrasonic flaw detector, connecting guide rods are fixedly arranged on the outer walls of two sides of the auxiliary frame, inclined plates are arranged on the outer walls of two sides of the auxiliary frame through the connecting guide rods, and transverse guide wheels are rotatably arranged on the lower sides of the inclined plates in a uniformly distributed manner;

a return spring is arranged on the circumferential outer wall of the connecting guide rod, one end of the return spring is fixedly connected with the upper end of the inclined plate, and the other end of the return spring is fixedly connected with the outer walls of the two sides of the auxiliary frame;

the auxiliary frame lower extreme is provided with the connection box, the outer fringe limit of connection box lower extreme all is the fillet form, just the connection box lower surface is used for the subsides to apply the cotton piece.

Preferably, the inside groove of accomodating that is provided with of auxiliary frame, the cross-sectional area of accomodating the groove is greater than the cross-sectional area of scarf, just accomodate inslot portion one end and be provided with vertical distribution's mounting panel, connecting frame upper surface one end is symmetric distribution fixed mounting and has directional piece, two rotate on the directional piece and install the connecting thread post, two threaded connection between connecting thread post and the mounting panel.

Preferably, a soft gasket is fixedly arranged on the outer wall of one side of the mounting plate, which is close to the inclined joint.

Preferably, the four corners of the upper surface of the connecting frame are uniformly and fixedly provided with connecting springs, and the upper end of each group of connecting springs is fixedly connected with the four corners of the lower surface of the auxiliary frame.

Preferably, the two groups of inclined plates approach to the middle position of the auxiliary frame under the elastic action of the return spring.

The welding quality detection device for the welding seam has the advantages that:

1. the device mainly utilizes an ultrasonic flaw detector to detect the welding seam, and can quickly detect the excellent condition of the position of the welding seam through an ultrasonic detection mode;

2. the auxiliary frame is provided with two groups of inclined plates, the two groups of inclined plates can be matched with the shape of the welding seam to perform corresponding displacement, so that the inclined plates on the auxiliary frame and the surface of the welding seam are in a relatively vertical state, the detection is convenient, the mounting plate is arranged and used for fixing inclined joints with different sizes, and the stability is high in the fixing process.

Drawings

FIG. 1 is a schematic structural diagram of a welding quality detection device for welding seams according to the present invention;

FIG. 2 is a disassembled view of an auxiliary frame member of the welding quality detection device for welding seams according to the present invention;

fig. 3 is a schematic structural diagram of a connecting frame component of a welding quality detection device for welding seams according to the present invention.

In the figure: 1. an ultrasonic flaw detector; 2. an oblique joint; 3. an auxiliary frame; 4. mounting a plate; 5. A transverse guide wheel; 6. an inclined plate; 7. connecting the threaded columns; 8. a connecting frame; 9. a return spring; 10. connecting the guide rod; 11. an orientation block; 12. a spring is connected.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, a welding quality detection device for welding seams comprises an ultrasonic flaw detector 1 and an inclined joint 2 arranged on the ultrasonic flaw detector 1, wherein an auxiliary frame 3 for placing the inclined joint 2 is arranged on one side of the ultrasonic flaw detector 1, connecting guide rods 10 are fixedly arranged on the outer walls of two sides of the auxiliary frame 3, inclined plates 6 are arranged on the outer walls of two sides of the auxiliary frame 3 through the connecting guide rods 10, and transverse guide wheels 5 are rotatably arranged on the lower sides of the inclined plates 6 in a uniformly distributed manner;

a return spring 9 is arranged on the circumferential outer wall of the connecting guide rod 10, one end of the return spring 9 is fixedly connected with the upper end of the inclined plate 6, and the other end of the return spring 9 is fixedly connected with the outer walls of the two sides of the auxiliary frame 3;

the lower end of the auxiliary frame 3 is provided with a connecting frame 8, the outer edge edges of the lower end of the connecting frame 8 are all in a round angle shape, the lower surface of the connecting frame 8 is used for pasting cotton cloth pieces, a containing groove is arranged inside the auxiliary frame 3, the cross sectional area of the containing groove is larger than that of the inclined joint 2, and accomodate inslot portion one end and be provided with vertical distribution's

mounting panel

4, 8 upper surface one ends of connecting frame are symmetric distribution fixed mounting and have directional piece 11, rotate on two directional piece 11 and install connecting thread post 7, threaded connection between two connecting thread posts 7 and the mounting panel 4, one side outer wall fixed mounting that mounting panel 4 is close to inclined joint 2 has the soft gasket, be evenly distributed fixed mounting on 8 upper surface four corners of connecting frame position and have connecting spring 12, fixed connection between the lower surface four corners position of the upper end of every group connecting spring 12 and auxiliary frame 3, two sets of inclined plates 6 are close to auxiliary frame 3 intermediate position department under the elastic action of return spring 9.

Before the device is used, firstly, the inclined joint 2 is placed on the auxiliary frame 3, and the two groups of connecting piece threaded columns 7 are rotated to enable the mounting plate 4 to gradually approach the inclined joint 2 until the inclined joint 2 is clamped;

then the auxiliary frame 3 is moved to the welding seam, and the connecting frame 8 is pressed downwards, so that the two groups of inclined plates 6 move outwards in a manner of matching the shape of the welding seam under the action of the transverse guide wheels 6, and the remaining welding seams of the connecting frame 8 are kept in a relatively vertical state;

and the inclined joint 2 is pressed downwards again to drive the connecting frame 8 to move towards the welding seam, so that the connecting frame 8 is gradually close to the welding seam, and the internal conditions of the welding seam are detected through the inclined joint 2, such as shrinkage cavities, air holes, cracks and the like at the welding seam.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A welding seam welding quality detection device comprises an ultrasonic flaw detector (1) and an inclined joint (2) arranged on the ultrasonic flaw detector (1), and is characterized in that one side of the ultrasonic flaw detector (1) is provided with an auxiliary frame (3) for placing the inclined joint (2), the outer walls of two sides of the auxiliary frame (3) are fixedly provided with connecting guide rods (10), the outer walls of two sides of the auxiliary frame (3) are provided with inclined plates (6) through the connecting guide rods (10), and the lower sides of the inclined plates (6) are uniformly distributed and rotatably provided with transverse guide wheels (5);

a return spring (9) is arranged on the circumferential outer wall of the connecting guide rod (10), one end of the return spring (9) is fixedly connected with the upper end of the inclined plate (6), and the other end of the return spring (9) is fixedly connected with the outer walls of the two sides of the auxiliary frame (3);

auxiliary frame (3) lower extreme is provided with connecting frame (8), the outer fringe limit of connecting frame (8) lower extreme all is the fillet form, just connecting frame (8) lower surface is used for the subsides to apply the cotton piece.

2. The welding seam welding quality detection device according to claim 1, characterized in that a containing groove is formed in the auxiliary frame (3), the cross-sectional area of the containing groove is larger than that of the inclined joint (2), a vertically-distributed mounting plate (4) is arranged at one end of the inside of the containing groove, one end of the upper surface of the connecting frame (8) is symmetrically and fixedly provided with two orientation blocks (11), two connection threaded columns (7) are rotatably mounted on the orientation blocks (11), and two connection threaded columns (7) are in threaded connection with the mounting plate (4).

3. The welding quality detection device for the welding seam according to the claim 2, characterized in that a soft gasket is fixedly arranged on the outer wall of one side of the mounting plate (4) close to the oblique joint (2).

4. The welding quality detection device for the welding seam according to the claim 1, characterized in that the four corners of the upper surface of the connecting frame (8) are uniformly distributed and fixedly provided with connecting springs (12), and the upper end of each group of connecting springs (12) is fixedly connected with the four corners of the lower surface of the auxiliary frame (3).

5. The weld joint welding quality detection device according to claim 1, wherein the two groups of inclined plates (6) approach to the middle position of the auxiliary frame (3) under the elastic action of the return spring (9).