CN219607903U - Welding leg detection device - Google Patents

Abstract

The utility model belongs to the technical field of welding detection equipment, and particularly relates to a welding leg detection device which is formed by cutting and processing stainless steel plates by laser, so that the purchasing cost is reduced, a welding line can be used after being internally checked by a welding engineer, the technology and the checking cost are reduced, the service life is not shortened due to the limitation of a functional ruler with other dimensions, the service life is further prolonged, the economic cost is reduced, the detection of a workpiece welding leg with the side length of more than 7mm (steel)/10 mm (aluminum) can be performed, and the effective welding operation efficiency is improved; stabilizing and improving the quality control effectiveness of the welding product; the welding pin size detection device is simple in structure, detects the welding pin size in the simplest, fastest and most direct mode, greatly improves effective welding operation efficiency, reduces self-checking technical cost, can detect the welding pin size of welding component products in the rail transit industry according to quality control standards, and improves quality control capability of welding products.

Description

Welding leg detection device

Technical field:

the utility model belongs to the technical field of welding detection equipment, and relates to a welding leg detection device which is used for detecting whether the size of a welding throat of a welding part in the railway vehicle industry meets the quality requirement.

The background technology is as follows:

the fillet is the minimum distance from the toe on one right angle surface to the surface of the other right angle surface in the cross section of the fillet weld in the weld, and the length of the right angle side in the largest isosceles right triangle drawn in the cross section of the fillet weld is called the fillet size. The weld thickness is equal to the length of the perpendicular from the apex of the right angle to the hypotenuse, also known as the throat, in the largest right isosceles triangle drawn in the fillet weld cross section. The welding leg detection tool in the prior art has a complex structure, requires a user to have certain basic skills, consumes time and labor, and has high purchase and maintenance cost. For example, chinese patent 201910401611 discloses a novel leg detection device comprising: the positioning device comprises a bolt, a nut, a gasket, a positioning key, a first ruler and a second ruler; the first ruler and the second ruler are respectively carved with scale marks, and a center positioning groove is formed in the middle of the first ruler and the second ruler; the first ruler and the second ruler are mutually vertically arranged, the positioning key is arranged in a square formed by the central positioning grooves of the first ruler and the second ruler, four side surfaces of the positioning key are matched with the central positioning grooves of the first ruler and the second ruler, the bolts penetrate through the positioning key and are fixed through nuts, gaskets are arranged between the nuts and the positioning key, and the bolts penetrate through the gaskets; the welding inspection ruler comprises a ruler frame, a ruler and a fastener, wherein extension arms perpendicular to the ruler are arranged on two sides of the ruler frame, each extension arm is internally provided with a first accommodating groove, each first accommodating groove is slidably connected with a first sample plate angle along the direction perpendicular to the ruler, the upper surface of the ruler frame is provided with a mounting groove communicated with the first accommodating groove, a first limiting component for limiting the first sample plate angle is arranged in the ruler frame, the first limiting component comprises a limiting rod, a limiting hook and a limiting spring, one end of the limiting rod is hinged in the mounting groove, the limiting hook is fixedly connected with the other end of the limiting rod, one end of the limiting spring is fixedly connected with the side wall of the first sample plate angle, the other end of the limiting spring is fixedly connected with the side wall of the first accommodating groove, the limiting hook is obliquely arranged below the first sample plate angle, the upper surface of the first sample plate angle is provided with a limiting groove along the direction perpendicular to the ruler, the limiting groove is obliquely arranged below the first sample plate angle, and the limiting hook is matched with the limiting hook in a limiting manner; the utility model discloses a welding inspection chi for electric power iron tower spare processing, including the main scale, the inside of main scale is equipped with sliding component, the inboard sliding connection of main scale has the altitude chi, the inboard sliding connection of main scale has the undercut degree of depth chi, the top inboard of altitude chi with the limit chute has all been seted up on the top inboard of undercut degree of depth chi, the back rotation of main scale is connected with multi-purpose chi, one side fixedly connected with width chi of multi-purpose chi, the opposite side fixedly connected with angle chi of multi-purpose chi, the bottom fixedly connected with clearance chi of multi-purpose chi, the inboard fixedly connected with magnetic force piece of main scale.

In the rail transit welding industry, in the manufacturing process of all welding products, a welder is required to carry out 100% self-inspection on welding seams produced by the welder. The currently used KH45 type precise welding seam detection ruler consists of a main ruler, a angle measurement ruler, a vernier ruler and a movable ruler, can measure the gap size, the groove angle, the welding seam width and height of a welding assembly and the fillet welding seam throat height, dislocation and undercut depth, is used as a common steel ruler and also used for welding seam detection, and is a multifunctional tool integrating welding engineering processing detection and welding seam appearance detection. When the length, the height and the angle are measured, the required measured value is obtained by converting according to the specification, and other functions except the function of detecting the height of the throat can be realized by using a vernier caliper. KH45 type precision welding inspection ruler is manufactured by selecting specific high-quality steel materials; in terms of function use, a user is required to have certain expertise to perform correct operation and measurement value conversion; in maintenance, the collision, the scratch and the like need to be avoided, and particularly, all the measuring surfaces need to be carefully protected and rust-proof; in terms of effective performance, the device needs to be checked first and then used, and the service life of the device can be guaranteed only by frequently checking according to the requirements of a precision ruler. Therefore, the KH45 type precision welding inspection ruler has higher use cost, especially production and manufacturing cost and technical use cost, because the inspection space is limited due to the multiple effects of functions, the detection of the fillet weld can not be realized or can not be directly realized on a small space or a small workpiece, and in the actual use process, a welder needs to spend a large amount of self-inspection time, the effective welding operation efficiency is reduced, and if the welder can not be skillfully used, the related functions or operation errors or conversion errors of the KH45 type precision inspection ruler can not be caused, so that the self-inspection is invalid, and the quality control is invalid. Therefore, the novel welding leg detection device is developed and designed, the effective welding operation efficiency is improved, the quality control effectiveness of welding products is improved, and positive social and economic benefits are achieved.

The utility model comprises the following steps:

the utility model aims to overcome the defects of the prior art, and seeks to design a welding leg detection device to solve the problem that a KH45 precise detection ruler is limited in detection on a small space and a small workpiece.

In order to achieve the above object, the main structure of the soldering leg detecting device according to the present utility model includes a rectangular plate-shaped substrate, through holes formed in the substrate, and detecting points formed at four corners of the substrate.

The substrate adopts a stainless steel plate with the thickness of 2mm, and the effective use area is 60x60 mm; the shape of the through hole comprises a round shape, a rectangular shape or an oval shape, is convenient for hanging, storage and handheld detection, and is formed by laser cutting; the detection points are bulges of an isosceles trapezoid structure, 4 common welding leg sizes are selected, a 1, a 1.5, a 2 and a 3 are selected for welding seams of the steel workpiece, a 2, a 3, a 4 and a 5 are selected for welding seams of the aluminum workpiece, and fillet weld size identification is carried out in a laser engraving mode.

When the welding leg detection device is used, two edges of the substrate are respectively aligned with two right-angle edges of the welding leg, the laser mark of the detection point closest to the welding leg is the size of the welding leg, and when the size of the welding leg is a non-integer value, namely the welding leg is between the two welding legs, the welding leg size requirement is met.

Compared with the prior art, the welding line detection device is formed by cutting and processing a stainless steel plate by laser, so that the purchasing cost is reduced, the welding line can be used after internal verification of a welding engineer, the technical and verification cost is reduced, the service life is not shortened because the welding line is limited by functional scales with other sizes, the service life is further prolonged, the economic cost is reduced, the detection of the welding leg of a workpiece with the side length being more than 7mm (steel)/10 mm (aluminum) can be performed, the detection of the welding leg of the workpiece with the side length being more than 20mm can be performed by a KH45 type precise welding line detection scale, the problem that the detection of the welding leg of the KH45 precise detection scale on a small space and a small workpiece is limited is solved, and the effective welding operation efficiency is improved; stabilizing and improving the quality control effectiveness of the welding product; the welding pin size detection device is simple in structure, detects the welding pin size in the simplest, fastest and most direct mode, greatly improves effective welding operation efficiency, reduces self-checking technical cost, can detect the welding pin size of welding component products in the rail transit industry according to quality control standards, and improves quality control capability of welding products.

Description of the drawings:

fig. 1 is a schematic structural diagram of a KH45 type precision weld joint detection rule according to the background art of the present utility model.

Fig. 2 is a schematic diagram of the principle of the main structure of the present utility model.

Fig. 3 is a schematic diagram of the principle of the main structure of embodiment 1 of the present utility model.

Fig. 4 is a schematic diagram of the principle of the main structure of embodiment 2 of the present utility model.

Fig. 5 is a schematic view illustrating the usage status of embodiment 2 of the present utility model.

The specific embodiment is as follows:

the utility model is further described below by way of example with reference to the accompanying drawings.

Example 1:

the welding leg detection device is used for detecting steel workpiece welding throats with the side length being larger than 7mm, and the main structure is shown in fig. 3 and comprises a base body 1, a through hole 2 and detection points 3; the square structure of the substrate 1, the through hole 2 with a circular structure is arranged on the substrate 1, and the detection points 3 are arranged at four corners.

The substrate 1 of this example is a stainless steel plate of 60x60x2 mm; the diameter of the through hole 2 is 8mm, and the vertical distance between the center of the circle and the center point of one side length of the matrix 1 is 8mm; the detection point 3 selects 4 common soldering throat sizes: a1, a 1.5, a 2 and a 3 are marked by laser inscription, and the oblique sides of the welding leg and the matrix 1 are: two parallel lines are made into isosceles trapezoids with set sizes, the isosceles trapezoids take the central vertical line between the two parallel lines as a symmetrical axis, the lower bottom is arranged on the inclined edge of the matrix 1, the upper bottom is arranged on the inclined edge of the welding leg, the extension lines of the waist and the lower bottom are 105 degrees, four corners are along the upper bottom and the waist line, the other four edges are 60x60 square edges, laser cutting is carried out, wherein 1, 1.5, 2 and 3 respectively represent common welding throat sizes of 1mm, 1.5mm, 2mm and 3mm, and variable design is carried out according to requirements in actual use.

Example 2:

the welding leg detection device is used for detecting aluminum workpiece welding throats with the side length being more than 10mm, and the main structure is shown in fig. 3 and comprises a base body 1, a through hole 2 and a detection point 3; the square structure of the substrate 1, the through hole 2 with a circular structure is arranged on the substrate 1, and the detection points 3 are arranged at four corners.

When the leg detecting device according to the present embodiment is manufactured,

first,: a stainless steel plate with the thickness of 2mm and the effective use area of 60x60mm is selected as a substrate 1;

then, taking a point 8mm away from the midpoint of the substrate 1 as a circle center to form a circle with the diameter of 8mm, and removing the circle by laser cutting to obtain a through hole 2;

finally, 4 common fillet sizes were selected: a2, a 3, a 4 and a 5 respectively take four corners of the matrix 1 as vertexes thereof, draw corresponding throat sizes and mark, form isosceles trapezoids with set sizes on the oblique sides of the matrix 1, namely two parallel lines, wherein the isosceles trapezoids take the central vertical lines between the two parallel lines as symmetry axes, the lower bottom is arranged on the oblique sides of the matrix 1, the upper bottom is arranged on the oblique sides of the welding legs, the waist and the lower bottom extension line form 105 degrees, the four corners are along the upper bottom and the waist line, and the other four edges are along the edges of the matrix 1, and perform laser cutting and laser inscription to mark the weld size to obtain the detection point 3.

When the leg detection device according to this embodiment is used, the two sides of the substrate 1 are aligned with the two right-angle sides of the leg of the aluminum workpiece, and the laser mark (a 3) of the detection point 3 closest to the position of the leg is the size of the throat.

Claims (6)

1. The utility model provides a leg detection device, the major structure includes rectangular plate structure's base member and the through-hole that sets up on it, its characterized in that still includes the check point that four bights of base member set up, and the check point is the arch of isosceles trapezoid structure, selects 4 common leg sizes.

2. The fillter detection device of claim 1, wherein the substrate has a thickness of 2mm and an effective use area of 60x60mm.

3. The fillet inspection apparatus of claim 1, wherein the shape of the through hole comprises a circle, a rectangle, or an ellipse.

4. A fillter inspection device according to claim 3 wherein the through hole has a diameter of 8mm and the vertical distance between the center of the circle and the center point of one side of the substrate is 8mm.

5. The leg inspection device of claim 1, wherein the steel workpiece welds are selected from a 1, a 1.5, a 2 and a 3.

6. The leg detection device of claim 1, wherein the aluminum workpiece welds are selected from the group consisting of a 2, a 3, a 4, and a 5.