Welding seam hole detection device

Abstract

The utility model discloses a welding seam hole detection apparatus, comprising a support comprising side support members, a crossbeam and a slide carriage, the two side support members are respectively arranged on two sides of a welding pipe, the end portion of the crossbeam is fixedly installed on the side support members, the slide carriage is slidably connected on the crossbeam, and the slide carriage is provided with a magnet; and the laser sensor is fixedly installed on the connecting base, the connecting base and the magnet are fixed in an adsorption mode, and the laser sensor faces the welding seam of the welded pipe. Compared with the prior art, the device solves the problem that in the pipe forming process, after welding, a welding seam burning hole cannot be found in time.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe making machines, in particular to a device for detecting weld holes. Background Art

[0002] During pipe processing, the sheet metal strip must first be bent into shape, and then welded to form the pipe body. For example, Chinese patent CN100544884C discloses a special-shaped pipe direct forming technology and forming unit specifically for power plants. This process uses nine flat rollers and nine vertical rollers to deform the strip into a nearly square tube. Three sets of guide frames ensure the accuracy of the top weld. Six flat rollers and five vertical rollers are then used for multiple presses to set the diameter. Finally, a straightening system combining Turkish rolls and flat and vertical rollers is used to straighten the tube into shape.

[0003] During the pipe welding process, burn holes are prone to appear in the welds due to poor welding. If the production line staff fail to discover the weld burn holes in time, it will not only be detrimental to controlling scrap pipes, but also easily lead to burnout of the welding wheel mold in the subsequent process, further reducing the pipe yield rate and shortening the life of the welding wheel. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting holes in welds, so as to solve the problem that burnt holes in welds cannot be discovered in time after welding during the pipe forming process.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a device for detecting holes in welds, comprising:

[0006] The bracket includes a side support member, a crossbeam and a slide seat. The two side supports are respectively arranged on both sides of the welded pipe. The ends of the crossbeam are fixedly mounted on the side supports. The slide seat is slidably connected to the crossbeam. The slide seat is provided with a magnet.

[0007] The laser sensor is fixedly mounted on the connecting base, the connecting base is fixed by adsorption of a magnet, and the laser sensor faces the weld of the welded pipe.

[0008] As a further description of the above technical solution:

[0009] The side support member is a screw drive, and the end of the crossbeam is fixedly installed on the sliding seat of the side support member.

[0010] As a further description of the above technical solution:

[0011] The cross section of the slide is "n" shaped.

[0012] As a further description of the above technical solution:

[0013] A plurality of slide rails are arranged on the side surface of the crossbeam, and the position of one slide rail corresponds to a side wall plate of the slide seat.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] 1. In the present invention, the welded pipe is transported under the laser sensor. The laser red dot emitted by the laser sensor is directed to the center of the outer weld of the pipe, thereby detecting whether there are holes on the outer weld. The sensor is used instead of manual inspection to avoid manual omissions, effectively control waste pipes, and improve the yield rate.

[0016] 2. In the present invention, the laser sensor is installed on the connecting seat, which is fixed by adsorption of a magnet. The connecting seat is easy to rotate to adjust the emission angle of the laser sensor. At the same time, the slide can slide horizontally to adjust the laser red dot emitted by the laser sensor to the center of the outer weld of the welded pipe, effectively ensuring the detection quality and avoiding missed detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of a weld hole detection device Figure 1 .

[0019] Figure 2 A schematic diagram of the structure of a weld hole detection device Figure 2 .

[0020] Legend:

[0021] 1. Bracket; 11. Side support; 111. Sliding seat; 12. Crossbeam; 121. Slide rail; 13. Sliding seat; 131. Magnet; 2. Laser sensor; 21. Connecting seat; 9. Welded pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-2The present invention provides a technical solution: a device for detecting holes in welds, comprising:

[0025] The bracket 1 includes a side support 11, a crossbeam 12 and a slide 13. The two side supports 11 are respectively arranged on both sides of the welded pipe 9. The ends of the crossbeam 12 are fixedly mounted on the side supports 11. The slide 13 is slidably connected to the crossbeam 12. The slide 13 is provided with a magnet 131.

[0026] The laser sensor 2 is fixedly mounted on the connecting base 21 , which is fixed by adsorption to the magnet 131 , and the laser sensor 2 faces the weld seam of the welded pipe 9 .

[0027] A symmetrically arranged magnet 131 is provided on one opposite side of the slide 13, which facilitates increasing the number of laser sensors 2 and realizing a combination of different laser irradiation angles, thereby further ensuring the quality of weld hole monitoring.

[0028] The cross section of the connecting base 21 is in an “L” shape, which ensures the contact area between the connecting base 21 and the magnet 131, ensures the connection strength, and facilitates the adjustment of the laser irradiation angle.

[0029] Working Principle: After welding, the welded pipe 9 is conveyed beneath the laser sensor 2. The laser sensor 2 emits a red laser spot directed toward the center of the outer weld seam of the pipe 9, thereby detecting the presence of holes in the outer weld seam. The sensor replaces manual inspection, preventing missed inspections, effectively controlling scrap pipes, and improving the yield rate. The laser sensor 2 is mounted on a connecting base 21, which is fixed by magnet 131. The connecting base 21 is easily rotated to adjust the emission angle of the laser sensor 2. Simultaneously, the slide 13 can slide horizontally to adjust the laser spot emitted by the laser sensor 2 to the center of the outer weld seam of the pipe 9, effectively ensuring inspection quality and preventing missed inspections.

[0030] Example 2

[0031] This embodiment further improves upon the above embodiment by providing the following technical solutions: the side support 11 is a screw drive, and the end of the crossbeam 12 is fixedly mounted on a sliding seat 111 of the side support 11. The crossbeam 12 can be moved vertically by the sliding seat 111 on the side support 11 to adjust the installation height, further facilitating adjustment of the detection effect of the laser sensor 2.

[0032] Example 3

[0033] This embodiment further improves upon the previous embodiment by providing the following technical solutions: The cross-section of the slide 13 is N-shaped, ensuring smooth sliding of the slide 13 on the crossbeam 12. Several rails 121 are provided on the side surface of the crossbeam 12, with one rail 121 corresponding to each side panel of the slide 13. Thus, the crossbeam 12 is equipped with three rails, effectively ensuring smooth sliding of the slide 13 and preventing it from detaching from the crossbeam 12.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting holes in welds, characterized in that: include: The bracket includes a side support member, a crossbeam and a slide seat, wherein the two side support members are respectively arranged on both sides of the welded pipe, the ends of the crossbeam are fixedly mounted on the side support members, the slide seat is slidably connected to the crossbeam, and the slide seat is provided with a magnet; The laser sensor is fixedly mounted on the connecting seat, the connecting seat is fixed by adsorption to the magnet, and the laser sensor faces the weld seam of the welded pipe.

2. The device for detecting weld holes according to claim 1, characterized in that: The side support member is a screw drive, and the end of the crossbeam is fixedly mounted on a sliding seat of the side support member.

3. The device for detecting weld holes according to claim 1, characterized in that: The cross section of the slide seat is in an "n" shape.

4. The device for detecting weld holes according to claim 3, characterized in that: A plurality of slide rails are arranged on the side surface of the crossbeam, and the position of one slide rail corresponds to a side wall plate of the slide seat.

5. The device for detecting weld holes according to claim 1, characterized in that: The magnets are symmetrically arranged on one opposite side of the slide.

6. The device for detecting weld holes according to claim 1, characterized in that: The cross section of the connecting seat is L-shaped.

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