CN219358360U - Deep narrow slit spiral arc welding seam identification guide block - Google Patents

Abstract

The utility model discloses a deep narrow slit spiral arc welding seam identification guide block, which comprises a guide block body, wherein the guide block body is in a convex shape, a first magnet, a second magnet and a third magnet are fixedly arranged at the lower position of the inner side surface of the guide block body, a first identification point, a second identification point and a third identification point are respectively and fixedly arranged at the top of the guide block body, and the identification point is located at the highest point at the top of the guide block body. According to the utility model, the displacement deviation value of the welding robot is obtained through the guide block, at the moment, the welding robot is enabled to run to the calibration welding position, then the displacement deviation value is moved to reach the welding position, and the welding robot starts down gun welding, so that the position, the shape and the size of the deep narrow slit are accurately positioned, and the problem of molten iron external flowing during deep narrow slit welding is thoroughly solved.

Description

Deep narrow slit spiral arc welding seam identification guide block

Technical Field

The utility model relates to a deep narrow slit spiral arc welding seam identification guide block, and belongs to the technical field of deep narrow slit welding of anode steel claws.

Background

The anode guide rod component is used as a main structure of electrolytic aluminum, is a key link of a current path, and has the characteristics of numerous and easy damage. For a long time, after the cast anode steel claw is used for a short time, the cast anode steel claw needs to be used again after being welded and repaired manually. Because of the limitation of the welding process and uncertainty of manual operation, the anode steel claw has high pressure drop, is easy to fall off or crack in the use process, has short service life, greatly increases the operation cost of enterprises, and simultaneously increases the number of operators.

In the prior art, the patent number is 201911087358.1, the utility model name is 'an automatic annular production line and repairing method for repairing an aluminum electrolysis anode guide rod', the utility model name is 202010452997.X, and the utility model name is 'an automatic production line and repairing method for repairing a split-flow aluminum electrolysis anode steel claw', which adopts a deep narrow slit arc welding technology in the automatic welding technology, but the method has the problem of molten iron flowing outside. In order to solve the problems, the application number is 202110180169.X, and the utility model is named as a method for preventing molten iron from flowing outwards in deep narrow seam welding.

At present, although the deep narrow slit welding technology is applied to the field of anode steel claw welding, automation of a welding process can be realized, certain errors exist in the process of machining, mounting and aligning steel bars, U-shaped backing plates and steel beams, certain errors are formed in the position, the shape and the size of the deep narrow slit formed by the steel bars, the U-shaped backing plates and the steel beams, a welding robot hardly accurately reaches a welding position from an initial position, and meanwhile, the welding position is inconvenient to observe a plurality of angles manually.

Disclosure of Invention

The utility model aims to provide a deep narrow slit spiral arc welding seam identification guide block capable of accurately positioning the position, shape and size of a deep narrow slit, so as to solve the problem that a welding robot cannot accurately position the deep narrow slit.

The technical scheme of the utility model is as follows: the utility model provides a dark narrow slit arc welding seam discernment guide block soon, includes the guide block body, the guide block body is "protruding" font, and the medial surface of guide block body is close to lower position fixed mounting has magnet one, magnet two and magnet three, and at the top of guide block body respectively fixed mounting has discernment point one, discernment point two and discernment point three, and discernment point is located the highest point at guide block body top.

Further, the top of the guide block body is fixedly provided with a first fixed pressing sheet, a second fixed pressing sheet and a third fixed pressing sheet respectively, and the centers of the first fixed pressing sheet, the second fixed pressing sheet and the third fixed pressing sheet are fixedly provided with a first identification point, a second identification point and a third identification point respectively.

Furthermore, the first, second and third identification points are white ceramic plates, and black dots are marked at the centers of the first, second and third identification points.

Further, the outer side surface of the guide block body is fixedly provided with a handle seat at an upper position, a through hole is formed in the handle seat, and the cylindrical handle penetrates through the handle seat and is fixed on the handle seat through a screw.

By adopting the technical scheme, the utility model has the advantages that: according to the utility model, the guide block is placed in a cuboid narrow slit formed by a steel bar to be welded, a U-shaped base plate and an anode steel beam, the guide block is visually identified by a visual camera on the welding robot, the coordinate of an identification point obtained by visual identification is compared with the coordinate of the identification point calibrated in advance, a displacement deviation value is obtained, at the moment, the welding robot is enabled to run to a calibrated welding position, then the displacement deviation value is moved to reach the welding position, and the welding robot starts down gun welding, so that the position, the shape and the size of the deep narrow slit are accurately positioned, and the problem of molten iron external flowing during deep narrow slit welding is thoroughly solved.

Drawings

FIG. 1 is a schematic view of a guide block of the present utility model;

FIG. 2 is a schematic view of the structure of the guide block of the present utility model in use;

fig. 3 is a top view of fig. 1.

Reference numerals illustrate: 1-a guide block body, 2-a first magnet, 3-a second magnet, 4-a third magnet, 5-a first identification point, 6-a first fixed pressing sheet, 7-a second identification point, 8-a second fixed pressing sheet, 9-a third identification point, 10-a third fixed pressing sheet, 11-a handle seat, 12-a handle, 13-a steel bar to be welded, 14-a U-shaped base plate, 15-a guide block, 16-an anode steel beam, 17-a welding robot and 18-an anode guide rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples.

Embodiments of the utility model:

referring to fig. 1, the utility model relates to a deep narrow slit spiral arc welding seam identification guide block, which comprises a guide block body 1, wherein the guide block body 1 is in a shape of a Chinese character 'tu', a magnet I2, a magnet II 3 and a magnet III 4 are fixedly arranged at the lower position of the inner side surface of the guide block body 1, an identification point I5, an identification point II 7 and an identification point III 9 are respectively fixedly arranged at the top of the guide block body 1, and the identification point II 7 is positioned at the highest point at the top of the guide block body 1. The top of the guide block body 1 is fixedly provided with a first fixed pressing sheet 6, a second fixed pressing sheet 8 and a third fixed pressing sheet 10 respectively, and the centers of the first fixed pressing sheet 6, the second fixed pressing sheet 8 and the third fixed pressing sheet 10 are fixedly provided with a first identification point 5, a second identification point 7 and a third identification point 9 respectively; the first identification point 5, the second identification point 7 and the third identification point 9 are all white ceramic plates, and black dots are marked at the centers of the first identification point 5, the second identification point 7 and the third identification point 9. The outer side surface of the guide block body 1 is fixedly provided with a handle seat 11 at an upper position, the handle seat 11 is provided with a through hole, and a cylindrical handle 12 passes through the handle seat 11 and is fixed on the handle seat 11 through a screw.

For convenience of description, the embodiment marks the guide block as the guide block 15 for welding the U-shaped backing plate 14, the steel bar 13 to be welded and the anode steel beam 16 on the anode guide rod 18, and includes the following steps:

step one, referring to fig. 2, a U-shaped backing plate 14 is placed between a steel bar 13 to be welded and an anode steel beam 16, and the three are tightly attached, so that a rectangular narrow slit vertically upwards is formed between the three, and the width of the rectangular narrow slit is x, the length of the rectangular narrow slit is y, and the height of the rectangular narrow slit is z; the flatness of sawing surfaces of the steel bar 13 to be welded and the anode steel beam 16 is less than 1.5mm, and after the steel bar and the anode steel beam are combined into a welding pool, the shape error of the pool is required to be less than 2mm;

step two, referring to fig. 3, placing the guide block 15 in a rectangular narrow slit, abutting against one side of the welding robot 17, running a visual camera installed on the welding robot 17 above the guide block 15, adjusting the welding robot 17 to enable the first recognition point 5, the second recognition point 7 and the third recognition point 9 shot by the visual camera to be clear, and storing the welding coordinate B0 of the welding robot 17 at the moment; and photographing the first identification point 5, the second identification point 7 and the third identification point 9 by using a vision system, calculating the center coordinates C0, D0 and E0 of the first identification point, and storing and recording by using the vision system as a calculation reference. In an ideal state, the rectangular narrow slit is vertically upwards, the coordinates of the C0, the D0 and the E0 in the x direction are the same, and the coordinates of the C0 and the E0 in the x and z directions are the same. Errors exist in actual calibration, and the errors do not influence the operation of the welding line along the y direction within a certain range. Wherein the second identification point 7 is located at the top of the guide block 15, the position of the second identification point is equivalent to the height of the steel bar 13 to be welded, and D0 is approximate to the top coordinate of the steel bar 13 to be welded. The first identification point 5 and the third identification point 9 are positioned in the middle of the guide block 15, the positions of the first identification point and the third identification point are equivalent to the opening positions of the U-shaped backing plate 14, and C0 and D0 can be approximate to the coordinates of the left opening position and the right opening position of the U-shaped backing plate 14 and also the coordinates of the middle of the steel bar 13 to be welded.

And thirdly, during welding, the guide block 15 is placed in a cuboid narrow slit formed by the steel bar 13 to be welded, the U-shaped base plate 14 and the anode steel beam 16, one side of the cuboid narrow slit is tightly attached to the calibration position, the welding robot 17 is operated to the position B0, the first identification point 5, the second identification point 7 and the third identification point 9 are photographed, new coordinates C1, D1 and E1 of the first identification point 5, the second identification point 7 and the third identification point 9 are calculated, and the new coordinates C1, D1 and E1 and the center coordinates C0, D0 and E0 are calculated to obtain position differences delta C, delta D and delta E.

Analyzing the delta C and delta E, and if the difference value of the delta C and delta E is smaller than 2mm, determining that the machining error of the end face of the steel bar 13 to be welded along the y direction is small, wherein the shape of the cuboid narrow slit is similar to that of the calibration state, and the welding path of the welding robot 17 is not required to be adjusted, wherein A0+ delta C is the initial welding position of the welding gun; if the difference between deltaC and deltaE is greater than 2mm, the machining error of the end face of the steel bar 13 to be welded along the y direction is determined to be large, the narrow slit shape is inclined, the posture and welding path of the welding gun of the welding robot 17 are required to be adjusted, the welding path of the welding gun is adjusted to be an initial position A0+deltaC, the turning-back position is A1+E0, and the adjusting angle of the welding gun is as follows:

by the method, when the anode guide rod group is used for steel claw welding by narrow slit rotary arc welding, automatic positioning and gun discharging welding of a welding gun can be realized.

If the difference value of delta C, delta E and delta D in the x direction is smaller than 2mm, the machining error of the end face of the steel bar 13 to be welded along the z direction is small, welding can be performed, if the difference value is larger than 2mm, the welding is judged to be unqualified, and the welding is stopped.

Claims (4)

1. A deep narrow slit arc welding seam identification guide block, comprising a guide block body (1), characterized in that: the guide block body (1) is of a convex shape, a first magnet (2), a second magnet (3) and a third magnet (4) are fixedly arranged at the lower position of the inner side surface of the guide block body (1), a first identification point (5), a second identification point (7) and a third identification point (9) are fixedly arranged at the top of the guide block body (1) respectively, and the second identification point (7) is located at the highest point of the top of the guide block body (1).

2. The deep narrow seam spiral arc weld identification guide block of claim 1, wherein: the top of the guide block body (1) is fixedly provided with a first fixed pressing sheet (6), a second fixed pressing sheet (8) and a third fixed pressing sheet (10), and the centers of the first fixed pressing sheet (6), the second fixed pressing sheet (8) and the third fixed pressing sheet (10) are fixedly provided with a first identification point (5), a second identification point (7) and a third identification point (9) respectively.

3. The deep narrow seam spiral arc weld identification guide block of claim 2, wherein: the first identification point (5), the second identification point (7) and the third identification point (9) are all white ceramic plates, and black dots are marked at the centers of the first identification point (5), the second identification point (7) and the third identification point (9).

4. The deep narrow seam spiral arc weld identification guide block of claim 1, wherein: the guide block is characterized in that a handle seat (11) is fixedly arranged on the outer side surface of the guide block body (1) close to the upper position, a through hole is formed in the handle seat (11), and a cylindrical handle (12) penetrates through the handle seat (11) and is fixed on the handle seat (11) through a screw.