阅读说明：本技术 一种用于v型焊接接头焊前坡口尺寸测量的辅助装置 (Auxiliary device for measuring size of groove before welding of V-shaped welding joint ) 是由 王理博 丰德友 贺锡鹏 高丹娜 陈碧强 雷杰 张力 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种用于V型焊接接头焊前坡口尺寸测量的辅助装置,包括测量支架、角度活动尺、定位装置、柔性感应钝边尺等；测量支架位于整个测量装置的正上方,呈“工”字型结构,通过磁性万向滑动轮与焊接相贴合,角度活动尺一端位于测量支架两端且与测量支架通过固定装置的连接轴相连,可进行位置调整,另一端通过柔性感应钝边尺的固定转轴相互嵌套。本发明装置体积小,使用灵活,操作简单、携带方便,不受现场施工条件变化的影响,用于现场测量时,数显屏数据读取方便,可单人使用或多人同时进行测量,可以保证和提升焊接接头焊前坡口尺寸测量数据的完整性和准确性。(The invention discloses an auxiliary device for measuring the dimension of a V-shaped welding joint weld front groove, which comprises a measuring bracket, an angle movable ruler, a positioning device, a flexible induction truncated edge ruler and the like; the measuring support is located whole measuring device directly over, is "worker" style of calligraphy structure, laminates mutually with the welding through the universal movable pulley of magnetism, and angle adjustable ruler one end is located the measuring support both ends and links to each other through fixing device's connecting axle with the measuring support, can carry out position control, and the fixed pivot that the other end passes through flexible induction blunt edge chi is nested each other. The device has the advantages of small volume, flexible use, simple operation and convenient carrying, is not influenced by the change of field construction conditions, is convenient for reading data of a digital display screen when being used for field measurement, can be used by one person or simultaneously measured by a plurality of persons, and can ensure and improve the integrity and the accuracy of the measurement data of the size of the welded front bevel of the welding joint.)

1. An auxiliary device for measuring the dimension of a groove of a V-shaped welding joint before welding is characterized by comprising a digital display screen (1), a measuring bracket (5), an angle movable ruler (4), a positioning device (6) and a flexible induction blunt edge ruler (7);

the measuring support (5) is connected with one end of the 2-angle movable ruler (4) through the 2 groups of positioning devices (6), the other end of the 2-angle movable ruler (4) is formed by mutually nesting the fixed rotating shafts (8) of the flexible induction blunt edge ruler (7), the digital display screen (1) is installed on the measuring support (5), and induction signal transmission lines which are connected with the digital display screen (1) in series are arranged in the angle movable ruler (4), the measuring support (5) and the flexible induction blunt edge ruler (7).

2. The auxiliary device for measuring the dimension of the V-shaped welding joint weld-front notch as claimed in claim 1, wherein the measuring bracket (5) is I-shaped in shape.

3. The auxiliary device for measuring the dimension of the V-shaped welding joint weld-front notch according to the claim 2 is characterized in that the measuring bracket (5) comprises 4 inductive sensors (3), and the 4 inductive sensors (3) are respectively fixed on the I-shaped legs of the measuring bracket (5) and are arranged in an opposite manner for inductively measuring the distance between the 2 positioning devices (6).

4. The auxiliary device for measuring the dimension of the groove of the V-shaped welding joint before welding according to the claim 3 is characterized in that a digital display screen (1) has data transmission with the induction sensor (3) and the flexible induction blunt edge ruler (7) and is used for displaying the groove angle, the blunt edge height and the blunt edge width and fixed at the central plane part of the measuring bracket (5).

5. The auxiliary device for measuring the dimension of the V-shaped welded joint weld-front notch according to claim 2, characterized in that the measuring bracket (5) further comprises 4 magnetic universal sliding wheels (2), and the 4 magnetic universal sliding wheels (2) are used for assisting the measuring bracket (5) to perform directional movement on the surface of the weldment and are fixed at 4 proximal end positions of the I-shaped legs of the measuring bracket (5).

6. The auxiliary device for measuring the dimension of the V-shaped welded joint weld-front notch according to claim 1 is characterized in that 2 movable angle rulers (4) are symmetrically arranged, one end of each movable angle ruler is fixed with a measuring bracket (5) through a positioning device (6) 2, the included angle between the two rulers can be changed through moving left and right on the measuring bracket (5) and is fixed through the positioning device (6), and the other end of each movable angle ruler is embedded inside a flexible induction blunt edge ruler (7) through a fixed rotating shaft (8).

7. The auxiliary device for measuring the dimension of the V-shaped welded joint weld-front notch according to claim 1 is characterized in that the positioning device (6) comprises 2 connecting shafts (9) and 4 fastening screws (10) for fixing the angle movable ruler (4) and the measuring bracket (5), the 2 connecting shafts (9) are symmetrically arranged at two ends of the measuring bracket (5) and are respectively nested with the angle movable ruler (4), and the end parts of the connecting shafts (9) are fixed through the 4 fastening screws (10).

8. The auxiliary device for measuring the dimension of the V-shaped welding joint pre-welding notch is characterized in that a flexible induction blunt edge ruler (7) is arranged at one end of the 2-degree movable ruler (4) and is fixed in a mutually nested mode through a fixed rotating shaft (8).

Technical Field

The invention belongs to a size measuring device, and particularly relates to an auxiliary device for measuring the size of a groove before welding of a V-shaped welding joint.

Background

The industries such as building, electric power, chemical industry, manufacturing and the like are rapidly developed, the requirements on safety and sustainability of plants, equipment and the like are higher and higher, and the requirements on the application of equipment materials and the assembly welding of the equipment are higher and higher indirectly. Due to production conditions and capacity issues, essentially all large equipment structures or assemblies are subjected to welding work, and beveling of the weld joint is a prerequisite for welding. A welded joint refers to a joint where two or more parts are to be joined by welding, or a joint where two or more parts are joined by welding, including a weld, a fusion zone, and a heat affected zone. The purpose of beveling the welding joint is to ensure that the electric arc can go deep into the root of the welding line so as to enable the root to be welded thoroughly; slag removal in the welding process is facilitated; better Chinese character and the like molding is obtained; the proportion of the base metal and the filler metal can be adjusted. Meanwhile, the V-shaped welding joint has the characteristics of simple processing, convenient welding operation, low defect rate and wide application range, and has wide application range in various industries. Therefore, the welding quality and the equipment performance are directly influenced by the qualified pre-welding size of the welding joint, and the measurement of the pre-welding size of the welding joint becomes a precondition for welding work.

However, limited by field processing conditions, the whole welded joint is easy to have uneven machining size before welding, and the deviation exceeds the standard requirement; the absolute parallelism between two welding parts cannot be guaranteed when the joint is in butt joint before welding, a tool for measuring the size of the groove by depending on a conventional caliper or a plug gauge is only a drawing measurement method, the condition of the whole joint cannot be mastered in front, the phenomenon of uneven groove gap after butt joint cannot be found in time, the size measurement data of the welding joint is incomplete, and the adaptability of the groove machining size condition and the parameter of welding process evaluation cannot be mastered comprehensively. Therefore, how to optimize the method or tool for measuring the dimension of the weld front bevel of the weld joint and to know the adaptability to the welding process in advance becomes a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides an auxiliary device for measuring the dimension of a groove before welding of a V-shaped welding joint, wherein after the groove of a workpiece to be welded is machined and the welding joint is assembled, the auxiliary device for measuring the dimension of the groove is arranged in the groove after the welding joint is assembled, four magnetic universal sliding wheels are magnetically attracted and welded on the surface, the angle of an angle movable ruler is adjusted by changing the position of a connecting shaft and the depth of the angle movable ruler penetrating into the groove is completely matched with the depth of the welding joint before welding, a measuring support and the angle movable ruler are fixed by a positioning device, the value of the groove angle is read on a digital display screen, a flexible induction blunt edge ruler is used for deeply deforming at the position of the blunt edge of the angle movable ruler, the height and the width of the blunt edge are read on the digital display screen, then the magnetic universal sliding wheels are moved along the two sides of the groove and are adjusted at proper time, and finally, exporting the size data of the whole V-shaped welding joint before welding and comparing the size data with the welding process. The method can not be influenced by small site position and operation space and personnel operation skills, and can solve the problems of inaccurate measurement data, incomplete measurement position, large artificial influence factor, time and labor saving and the like of the size of the rear groove of the V-shaped welding joint group.

The invention is realized by adopting the following technical scheme:

an auxiliary device for measuring the size of a groove before welding of a V-shaped welding joint comprises a digital display screen, a measuring bracket, an angle movable ruler, a positioning device and a flexible induction truncated edge ruler;

the measuring support is connected with one end of the 2-angle movable ruler through the 2 groups of positioning devices respectively, the other end of the 2-angle movable ruler is formed by mutually nesting fixed rotating shafts of the flexible induction blunt edge ruler, the digital display screen is installed on the measuring support, and induction signal transmission lines which are connected with the digital display screen in series are arranged in the angle movable ruler, the measuring support and the flexible induction blunt edge ruler.

The invention is further improved in that the measuring bracket is I-shaped.

The invention is further improved in that the measuring bracket comprises 4 induction sensors, and the 4 induction sensors are respectively fixed on the I-shaped legs of the measuring bracket and are arranged oppositely and used for induction measurement of the distance between the 2 positioning devices.

The invention has the further improvement that the digital display screen, the induction sensor and the flexible induction blunt edge ruler have data transmission, are used for displaying the groove angle, the blunt edge height and the blunt edge width and are fixed at the plane part of the center of the measuring bracket.

The invention is further improved in that the measuring bracket further comprises 4 magnetic universal sliding wheels, and the 4 magnetic universal sliding wheels are used for assisting the measuring bracket to perform directional movement on the surface of the weldment and are fixed at 4 proximal end parts of the I-shaped legs of the measuring bracket.

The invention has the further improvement that the number of the angle movable rulers is 2, the angle movable rulers are symmetrically arranged, one end of each angle movable ruler is fixed with the measuring bracket through the positioning device 2, the included angle between the two rulers can be changed through moving left and right on the measuring bracket and is fixed through the positioning device, and the other end of each angle movable ruler is embedded in the flexible induction blunt edge ruler through the fixed rotating shaft.

The invention has the further improvement that the positioning device comprises 2 connecting shafts and 4 fastening screws for fixing the angle movable ruler and the measuring bracket, the 2 connecting shafts are symmetrically arranged at the two ends of the measuring bracket and are respectively nested with the angle movable ruler, and the end parts of the connecting shafts are fixed by the 4 fastening screws.

The invention is further improved in that the flexible induction blunt edge ruler is positioned at one end of the 2-degree movable ruler and is mutually nested and fixed through the fixed rotating shaft.

Compared with the prior art, the invention has at least the following beneficial technical effects:

1. according to the invention, according to the gap between the welding joint before welding and after welding, the measuring bracket is arranged on the two sides of the groove for welding, the magnetic universal sliding wheel is attracted with a welding piece, the positions of the angle movable ruler and the flexible induction blunt edge ruler are adjusted, the angle of the groove before welding, the height of the blunt edge and the width of the blunt edge are displayed on a digital display screen by means of the induced sensing signal, and then the universal sliding wheel and the angle adjustable movable ruler are moved along the direction to be measured of the groove of the welding joint, so that the accurate data of the whole groove before welding of the welding joint is obtained, the accuracy of the data can be ensured, the comparison and analysis with the welding process parameters are facilitated, and the welding efficiency and the welding quality are improved.

2. The device has small volume, flexible use and convenient carrying, is not influenced by the change of site construction conditions, is convenient for reading by a digital display screen when being used for site measurement, can be used by a single set of equipment or a plurality of sets of equipment by a plurality of persons for simultaneous measurement, and can ensure and improve the integrity and the accuracy of the measurement data of the size of the welded joint weld-front notch.

3. The magnetic universal sliding wheel has magnetism for adsorbing ferromagnetic materials, can be firmly attached to a weldment, can also move directionally and keep balance under the leading action of a person measuring person in the process of adsorbing the materials, overcomes the defects of falling risk, unstable placement, large influence factor caused by manual operation, inaccurate reading, limited measuring position and the like caused by a conventional measuring caliper and a plug gauge, is also suitable for measuring the welded joint front-welding groove of the non-ferromagnetic materials, and has wide application range.

4. The invention is suitable for measuring the size of the welded groove of various devices, is not influenced by time and space, does not leave residues after completion and is convenient to carry; the material can be repeatedly used, and has better economic performance; the working principle is simple and the operation is convenient.

Drawings

FIG. 1 is a schematic structural diagram of an auxiliary device for measuring the dimension of a groove before welding of a V-shaped welded joint according to the invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a horizontal cross-sectional view of a positioning device of the present invention taken in section A-A of the front view of FIG. 2;

FIG. 4 is a left side view of the present invention;

FIG. 5 is a top view of the present invention.

Description of reference numerals:

1-a digital display screen; 2-magnetic universal sliding wheels; 3-an inductive sensor; 4-an angle adjustable ruler; 5-measuring the support; 6-a positioning device; 7-flexible induction blunt edge ruler; 8-fixing the rotating shaft; 9-a connecting shaft; 10-fastening screws.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 5, the auxiliary device for measuring the dimension of the groove before the welding of the V-shaped welding joint of the present invention comprises a measuring bracket 5 (a digital display screen 1, a magnetic universal sliding wheel 2, an inductive sensor 3), an angle active ruler 4, a positioning device 6 (a connecting shaft 9, a fastening screw 10), and a flexible inductive blunt edge ruler 7 (a fixed rotating shaft 8), wherein the measuring bracket 5 is located right above the whole measuring device and has an i-shaped structure, the digital display screen 1 is a result display screen of the inductive sensor 3 and the flexible inductive blunt edge ruler 7, the magnetic universal sliding wheel 2 is a bridge connecting the measuring bracket 5 and the welding joint, and is attracted by the magnetic attraction effect, and the magnetic universal sliding wheel 2 is directionally moved along the groove under the human dominant effect, wherein the number of the magnetic universal sliding wheels 2 is 4, and the magnetic universal sliding wheels are symmetrically fixed at the proximal end positions of 4 i-legs of the measuring bracket 5 respectively, the induction sensor 3 is used for inducing and acquiring the distance between 2 positioning devices 6 after the angle movable ruler 4 is adjusted, the bevel angle is displayed on the digital display screen 1 through an automatic conversion formula, wherein the total number of the induction sensors 3 is 4, the induction sensors are symmetrically arranged on 4I-shaped legs of the measuring bracket 5, the number of the angle movable ruler 4 is 2, the angle movable ruler is respectively arranged at two sides of the measuring device 5, one end of each angle movable ruler is clamped between the I-shaped legs of the measuring bracket 5, the angle movable ruler is fixedly connected with the measuring bracket 5 through the fixing device 6, the other end of each angle movable ruler is mutually nested and connected with a fixed rotating shaft 8 of the flexible induction blunt edge ruler 7, the number of the positioning devices 6 is 2, each group of positioning devices is connected with the angle movable ruler 4 and the measuring device 5 through a connecting shaft 9, two ends of the connecting shaft 9 are communicated, 2 fastening screws 10 are screwed to fix the positions of the angle movable ruler 4 and the measuring bracket 5, and each group of positioning devices comprises 1 connecting shaft 9 and 2 fastening screws 10, flexible response blunt edge chi 7 in have the fixed rotating shaft 8 of taking the sensor for connect angle movable ruler 4, and be mutual nested structure, fixed rotating shaft 8 is used for the distance between response and the connecting axle 9 simultaneously, shows the groove angle on the digital display screen through automatic conversion formula conversion back, flexible response blunt edge chi 7 shows blunt edge width and blunt edge width in the deflection transmission through welded joint blunt edge department gives digital display screen 1. The device has a simple structure, can magnetically attract the surface of a weldment, does not need to carry out measurement and confirmation for many times after adjustment, can effectively improve the measurement efficiency and improve the comprehensiveness of measurement data, does not leave residues after completion, and is convenient to carry; the material can be repeatedly used, and has better economic performance; the working principle is simple and the operation is convenient.

The present invention is not limited to the above embodiments, and those skilled in the art can easily make changes, substitutions and modifications to solve the problems and achieve the same technical effects, and all such changes, substitutions and modifications are included in the scope of the present invention.