Portable arc cutting device

Abstract

The present application belongs to the field of steel structure manufacturing, and particularly relates to a portable circular arc cutting device, which comprises a guide rail, a scale, a sliding block, a sliding block fixing bolt, a magnetic counterweight, a welding gun fixing outer ring, a welding gun fixing inner ring, a welding gun fixing bolt, a connecting block, a roller, a roller shaft cover and a roller shaft protective sleeve, and the roller is installed on the roller shaft connected with the connecting block. The guide rail is 1000 mm long, 20 mm wide and 30 mm high, and is used for determining the cutting radius. The welding gun fixing inner ring is 85 mm in outer diameter, 20 mm in inner diameter and 30 mm in height, and is used for placing and fixing the welding gun. The roller is 85 mm in outer diameter, 10 mm in inner diameter and 7.5 mm in thickness, and is used for realizing circular arc cutting.

Description

Technical Field

[0001] This invention belongs to the field of steel structure fabrication, and specifically relates to a portable arc cutting device. Background Technology

[0002] In steel structure factories, secondary processing of component plates is often required, including the frequent need for arc cutting. However, ordinary semi-automatic cutting machines are limited by various aspects such as tracks and cannot cut arcs; manual cutting cannot guarantee the quality of the cut surface and the roundness, affecting the welding quality.

[0003] In view of this, the applicant provides a portable arc cutting device. Utility Model Content

[0004] The purpose of this invention is to provide a portable arc cutting device for arc cutting.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] A portable arc cutting device includes a guide rail, a scale mounted on the guide rail, a sliding block that can slide on the guide rail, a sliding block fixing bolt for fixing the sliding block, a magnetic counterweight located below the guide rail and fitted onto the sliding block, a welding gun fixing outer ring welded to the guide rail, a welding gun fixing inner ring for mounting and fixing the welding gun, controlled by the welding gun fixing bolt, a connecting block welded to the guide rail and the welding gun fixing outer ring respectively, a roller shaft welded to the guide rail and the welding gun fixing outer ring respectively, a roller mounted on the roller shaft, a roller shaft protective sleeve welded to the connecting block, and a roller shaft cover welded to the roller shaft.

[0007] Further details: The guide rail is 1000mm long, 20mm wide, and 30mm high, with a groove 20mm high and 2mm deep on the side.

[0008] Further details: The scale is 1000mm long, 20mm high, and 1.5mm thick, and is installed in a groove on the guide rail.

[0009] Further configuration: The sliding block has a diameter of 50mm and a height of 130mm, with a hole in the middle that is 20mm wide and 35mm high. It fits onto the guide rail and is fixed with an M12 sliding block fixing bolt.

[0010] Further details: The magnetic counterweight has an outer diameter of 135mm, an inner diameter of 55mm, and a height of 60mm. It has cross lines on its surface, is fitted onto the sliding block, and is installed below the guide rail. It is used to align the center of the arc and as a fixing device during cutting.

[0011] Further configuration: The welding torch fixing outer ring has an outer diameter of 100mm, an inner diameter of 85mm, and a height of 30mm, and is welded to the guide rail.

[0012] Further configuration: The welding torch fixing inner ring has an outer diameter of 85mm, an inner diameter of 20mm, and a height of 30mm, and is fixed to the welding torch fixing outer ring with an M12 welding torch fixing bolt.

[0013] Further details: The connecting block is 25mm long, 8mm wide, and 90mm high, and is welded to the guide rail and the outer ring of the welding gun fixing, respectively.

[0014] Further configuration: The roller shaft has a diameter of 10mm and a length of 20.5mm, and is welded to the guide rail and the outer ring for fixing the welding gun, respectively.

[0015] Further details: The roller has an outer diameter of 85mm, an inner diameter of 10mm, and a thickness of 7.5mm, and is mounted on a roller shaft.

[0016] Further details: The roller shaft protective sleeve has an outer diameter of 30mm, an inner diameter of 10mm, and a thickness of 5mm, and is welded to the connecting block.

[0017] Further details: The roller shaft cover has a diameter of 30mm and a thickness of 5mm, and is welded to the top of the roller shaft. Attached Figure Description

[0018] Figure 1 Axonometric drawing of a portable arc cutting device;

[0019] Figure 2 for Figure 1 Exploded view. Detailed Implementation

[0020] like Figure 2 The exploded view of a portable arc cutting device shown includes a guide rail 1, connecting blocks 2 and 11, roller shaft protective sleeves 3 and 13, rollers 4 and 14, roller shaft covers 6 and 15, a scale 7, a sliding block 9, a magnetic counterweight 8, a sliding block fixing bolt 18, a welding torch fixing outer ring 10, a welding torch fixing inner ring 16, and a welding torch fixing bolt 17. Rollers 4 and 14 are connected to connecting blocks 2 and 11 respectively via roller shafts 5 and 12.

[0021] The guide rail 1 is 1000mm long, 20mm wide, and 30mm high, with a groove 20mm high and 2mm deep on its side.

[0022] The scale 7 is 1000mm long, 20mm high, and 1.5mm thick. It is installed in the groove on the guide rail and works with the sliding block 9 to adjust the radius of the arc cutting.

[0023] The sliding block 9 has a diameter of 50mm and a height of 130mm, with a hole in the middle that is 20mm wide and 35mm high. It is fitted onto the guide rail and fixed with an M12 sliding block fixing bolt 18.

[0024] The magnetic counterweight 8 has an outer diameter of 135mm, an inner diameter of 55mm, and a height of 60mm. It is fitted onto the sliding block and is installed below the guide rail. It is used to align the center of the arc and to fix the device during cutting.

[0025] The welding torch fixing outer ring 10 has an outer diameter of 100mm, an inner diameter of 85mm, and a height of 30mm, and is welded to the guide rail 1.

[0026] The welding torch fixing inner ring 16 has an outer diameter of 85mm, an inner diameter of 20mm, and a height of 30mm. It is fixed to the welding torch fixing outer ring 10 with an M12 welding torch fixing bolt 17.

[0027] The connecting blocks 2 and 11 are 25mm long, 8mm wide, and 90mm high, and are respectively welded to the guide rail 1 and the welding gun fixing outer ring 10.

[0028] The rollers 4 and 14 have an outer diameter of 85mm, an inner diameter of 10mm, and a thickness of 7.5mm, and are respectively mounted on roller shafts 5 and 12.

[0029] The roller shafts 5 and 12 are round tubes with a diameter of 10 mm and a length of 20.5 mm, and are respectively welded to the guide rail 1 and the welding gun fixing outer ring 10.

[0030] The roller shaft protective sleeves 3 and 13 have an outer diameter of 30mm, an inner diameter of 10mm, and a thickness of 5mm, and are welded to the connecting blocks 2 and 11 respectively.

[0031] The roller shaft covers 6 and 15 are 30mm in diameter and 5mm thick, and are welded to the top of the roller shafts 5 and 12, respectively.

[0032] When performing arc cutting, use the scale 7 to slide the sliding block 9 to the determined cutting radius, then tighten the sliding block fixing bolt 18. Align the intersection of the cross lines on the magnetic counterweight 8 with the center of the arc cutting line. Insert the welding torch into the welding torch fixing inner ring 16 at a suitable angle and depth, then tighten the welding torch fixing bolt 17. Start the welding torch and rotate the device at a suitable speed to complete the arc cutting.

[0033] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A portable arc cutting device, characterized in that: Guide rail, scale mounted on guide rail, sliding block that can slide on guide rail, sliding block fixing bolt for fixing sliding block, magnetic counterweight block located below guide rail and fitted on sliding block, welding gun fixing outer ring welded to guide rail, welding gun fixing inner ring for mounting and fixing welding gun controlled by welding gun fixing bolt, connecting block welded to guide rail and welding gun fixing outer ring respectively, roller shaft welded to guide rail and welding gun fixing outer ring respectively, roller mounted on roller shaft, roller shaft protective sleeve welded to connecting block and roller shaft cover welded to roller shaft.

2. The portable arc cutting device according to claim 1, characterized in that: The guide rail is 1000mm long, 20mm wide, and 30mm high. There is a 20mm high and 2mm deep groove on the side for mounting a ruler. The ruler is 1000mm long, 20mm high, and 1.5mm thick.

3. The portable arc cutting device according to claim 1, characterized in that: The sliding block is 50mm in diameter and 130mm in height, with a 20mm wide and 35mm high hole in the middle. It fits onto the guide rail and is fixed with an M12 sliding block fixing bolt to determine the cutting radius.

4. The portable arc cutting device according to claim 1, characterized in that: The magnetic counterweight has an outer diameter of 135mm, an inner diameter of 55mm, and a height of 60mm. It has cross lines on its surface, is fitted onto the sliding block, and is installed below the guide rail. It is used to align the center of the arc and as a fixing device during cutting.

5. A portable arc cutting device according to claim 1, characterized in that: The welding torch fixing ring has an outer diameter of 100mm, an inner diameter of 85mm, and a height of 30mm.

6. A portable arc cutting device according to claim 1, characterized in that: The welding torch fixing inner ring has an outer diameter of 85mm, an inner diameter of 20mm, and a height of 30mm. It is fixed to the welding torch fixing outer ring with an M12 welding torch fixing bolt and is used to fix the welding torch during cutting.

7. A portable arc cutting device according to claim 1, characterized in that: The connecting block is 25mm long, 8mm wide, and 90mm high, and is welded to the guide rail and the outer ring of the welding gun respectively.

8. A portable arc cutting device according to claim 1, characterized in that: The roller has an outer diameter of 85mm, an inner diameter of 10mm, and a thickness of 7.5mm. It is used to maintain the cutting height and achieve arc cutting during cutting. The roller shaft has a diameter of 10mm and a length of 20.5mm. It is welded to the guide rail and the outer ring of the welding gun respectively.

9. A portable arc cutting device according to claim 1, characterized in that: The roller shaft protective sleeve has an outer diameter of 30mm, an inner diameter of 10mm, and a thickness of 5mm; the roller shaft cover has a diameter of 30mm and a thickness of 5mm, and is welded to the top of the roller shaft.

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