Auxiliary cutting device of semi-automatic cutting machine

Abstract

The utility model discloses an auxiliary cutting device of a semi-automatic cutting machine, which comprises a connecting plate and a sliding block, one side of the connecting plate is provided with a mounting hole, and the other side of the connecting plate is vertically fixed with a sliding rod; the sliding block is provided with an unthreaded hole in the horizontal direction and a large threaded hole in the vertical direction, the sliding rod is sleeved with the sliding block, a long screw rod is in threaded connection with the interior of the large threaded hole of the sliding block, and the lower section of the long screw rod is fixedly sleeved with a positioning plate and a pulley; a fine threaded hole is formed in the sliding block in the direction perpendicular to the unthreaded hole, and a positioning bolt is arranged in the fine threaded hole. The utility model belongs to the technical field of metallurgical equipment structural member manufacturing, and a group of auxiliary devices are added on the semi-automatic cutting machine to ensure cutting of a circular or curve-shaped groove, so that the problem that the semi-automatic cutting machine can only cut a linear groove is solved, the application range of the semi-automatic cutting machine is enlarged, and the cutting quality of a groove surface is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of manufacturing metallurgical equipment structural parts and relates to an auxiliary cutting device for a semi-automatic cutting machine. Background Art

[0002] In the manufacture of welded structural parts such as metallurgical equipment, it is often encountered that some drawings or standards require beveling. Generally, for straight bevels, a semi-automatic cutting machine is used to cut the bevel by walking on the linear guide rail below. However, for circular flanges and curved shapes, the cutting bevel can only be controlled manually. At this time, the bevel cut will have large deviations in depth and angle, and the cutting surface roughness is poor, which affects the quality and appearance of the weld.

[0003] Therefore, it is necessary to develop a new structure for auxiliary cutting of semi-automatic cutting machines to achieve bevel cutting of circular flange parts and curved parts. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary cutting device for a semi-automatic cutting machine, which solves the problem that the guide rails of the existing semi-automatic cutting machine are straight and can only cut parts in straight lines, and cannot effectively cope with the bevel cutting of circular flange parts and parts with curved shapes, and the problem that manual control has poor effect.

[0005] The technical solution adopted by the utility model is that the auxiliary cutting device of the semi-automatic cutting machine includes a connecting plate and a slider, a mounting hole is opened on one side of the connecting plate, and a sliding rod is vertically fixed on the other side of the connecting plate; the slider has a light hole in the horizontal direction and a large threaded hole in the vertical direction, the slider is sleeved on the sliding rod, a long screw is threadedly connected in the large threaded hole of the slider, and the lower section of the long screw is fixedly sleeved with a positioning plate and a pulley; a fine threaded hole is opened on the slider in a direction perpendicular to the light hole, and a positioning bolt is provided in the fine threaded hole.

[0006] The auxiliary cutting device of the semi-automatic cutting machine of the present utility model is also characterized in that:

[0007] The positioning bolts are used to position the slider and the slide rod.

[0008] The long screw is used to adjust the height of the positioning plate and pulley.

[0009] The slider is sleeved on the slide rod through the light hole and is used for adjusting the relative distance between the slider and the connecting plate.

[0010] A fixing screw is arranged between the long screw rod and the sliding block.

[0011] The beneficial effect of this utility model is that, through the guide wheel of the auxiliary cutting device, the semi-automatic cutting machine can effectively cut along the contours of circular flange parts and parts with curved shapes. This solves the problem that semi-automatic cutting machines can only cut straight bevels, expands the scope of use of semi-automatic cutting machines, ensures the cutting quality of the bevel surface, and is simple to operate, with good cutting effects and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of the semi-automatic auxiliary cutting device of the utility model;

[0013] Figure 2 This is a top view of the semi-automatic auxiliary cutting device of the utility model;

[0014] Figure 3 It is a side view of the semi-automatic auxiliary cutting device of the utility model;

[0015] Figure 4 The utility model is a three-dimensional cutting state of the device and the semi-automatic cutting machine. Figure 1 ;

[0016] Figure 5 The utility model is a three-dimensional cutting state of the device and the semi-automatic cutting machine. Figure 2 ;

[0017] Figure 6 The utility model is a three-dimensional cutting state of the device assembled with the semi-automatic cutting machine Figure 3 .

[0018] In the figure, 1. connecting plate, 2. sliding rod, 3. slider, 4. long screw, 5. positioning plate, 6. pulley, 7. positioning bolt, 8. mounting hole, 9. plain hole, 10. large threaded hole, 11. fine threaded hole. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 、 Figure 2 、 Figure 3 The structure of the auxiliary cutting device of the present invention is, comprising a connecting plate 1 and a slider 3, a mounting hole 8 is opened on one side of the connecting plate 1, and a slide rod 2 is vertically fixed to the other side of the connecting plate 1; the slider 3 is opened with a light hole 9 in the horizontal direction and a large threaded hole 10 in the vertical direction, the slider 3 is sleeved on the slide rod 2 through the light hole 9, a long screw 4 is threadedly connected in the large threaded hole 10 of the slider 3, and a positioning plate 5 and a pulley 6 are fixedly sleeved on the lower section of the long screw 4; a fine threaded hole 11 is opened on the slider 3 in a direction perpendicular to the light hole 9, and a positioning bolt 7 is provided in the fine threaded hole 11.

[0021] The positioning bolt 7 is used to position the slider 3 and the slide bar 2 , that is, the relative distance between the slider 3 and the connecting plate 1 .

[0022] The threaded connection between the long screw 4 and the slider 3 facilitates adjustment of the height of the positioning plate 5 and the pulley 6, that is, the relative height of the positioning plate 5, the pulley 6, and the connecting plate 1. A fixing screw can also be provided between the long screw 4 and the slider 3 to achieve positioning during operation and prevent the long screw 4 and the slider 3 from moving out of alignment and affecting the overall positioning.

[0023] The positioning plate 5 and the pulley 6 are in close contact with the inner curve of the structural member, providing a reference for the groove surface of the flame cutting nozzle.

[0024] The auxiliary cutting device of the present invention is installed by fixing the connecting plate 1 to the semi-automatic cutting machine through the mounting hole 8 with bolts. The connecting plate 1 is fixed to the slide bar 2 as a whole. The sliding distance of the slider 3 on the slide bar 2 is controlled according to the required distance between the gas cutting surface and the semi-automatic cutting machine. Since the position of the flame cutting nozzle and the semi-automatic cutting machine is fixed in advance, it is equivalent to controlling the distance between the flame cutting nozzle and the positioning plate 5 and the pulley 6. The long screw 4 on the slider 3 is rotated to adjust the height between the positioning plate 5 and the pulley 6 on the long screw 4 and the cutting nozzle of the semi-automatic cutting machine. After the height is appropriate, the slider 3 is positioned with the positioning bolt 7. When the cutting operation begins, the pulley 6 rotates close to the inner surface of the structural member, and the semi-automatic cutting machine always maintains the height and distance from the inner surface of the structural member, so that the groove surface cut by the flame cutting nozzle maintains the same curvature as the inner surface.

[0025] Example 1

[0026] Reference Figure 4 , the device of the utility model is assembled, the cutting object is a Φ600 / Φ400mm flange with a thickness of t=100 commonly used in mechanical processing, the size requirement of the cutting part is 30X45 degree groove, and the connecting plate 1 is fixed to the semi-automatic cutting machine through the mounting hole 8 by bolts. The connecting plate 1 and the slide bar 2 are fixed as a whole. According to the required distance between the gas cutting surface and the semi-automatic cutting machine, the sliding distance of the slider 3 on the slide bar 2 is controlled to be 20cm. Since the position of the flame cutting nozzle and the semi-automatic cutting machine is fixed in advance, it is equivalent to controlling the distance between the flame cutting nozzle and the positioning plate 5 and the pulley 6 to be 10cm; rotate the long screw 4 on the slider 3, and adjust the height between the positioning plate 5, the pulley 6 on the long screw 4 and the cutting nozzle of the semi-automatic cutting machine to 15 to 25cm. After the height is appropriate, use the positioning bolt 7 to position the slider 3. When the cutting operation starts, the pulley 6 rotates close to the inner surface of the structural part, and the semi-automatic cutting machine always maintains the height and distance from the inner surface of the structural part, so that the cross section cut by the flame cutting nozzle maintains the same curvature as the inner surface.

[0027] After actual testing, the cutting groove surface of the product fully meets the product processing quality requirements.

[0028] Example 2

[0029] Reference Figure 5 , the device of the present invention is assembled, the cutting object is a Φ600 / Φ400mm flange with a thickness of t=150 commonly used in mechanical processing, the size requirement of the cutting part is a 30X45 degree groove, and the connecting plate 1 is fixed to the semi-automatic cutting machine through the mounting hole 8 by bolts. The connecting plate 1 and the slide bar 2 are fixed as a whole. According to the required distance between the gas cutting surface and the semi-automatic cutting machine, the sliding distance of the slider 3 on the slide bar 2 is controlled to be 15cm. Since the position of the flame cutting nozzle and the semi-automatic cutting machine is fixed in advance, it is equivalent to controlling the distance between the flame cutting nozzle and the positioning plate 5 and the pulley 6 to be 10cm; rotate the long screw 4 on the slider 3, and adjust the height between the positioning plate 5, the pulley 6 on the long screw 4 and the cutting nozzle of the semi-automatic cutting machine to 20 to 25cm. After the height is appropriate, use the positioning bolt 7 to position the slider 3. When the cutting operation starts, the pulley 6 rotates close to the inner surface of the structural part, and the semi-automatic cutting machine always maintains the height and distance from the inner surface of the structural part, so that the cross section cut by the flame cutting nozzle maintains the same curvature as the inner surface.

[0030] After actual testing, the cutting groove surface of the product fully meets the product processing quality requirements.

[0031] Example 3

[0032] Reference Figure 6 , the device of the utility model is assembled, the cutting object is a Φ600 / Φ400mm flange with a thickness of t=100 commonly used in mechanical processing, the size requirement of the cutting part is a 30X30 degree groove, and the connecting plate 1 is fixed to the semi-automatic cutting machine through the mounting hole 8 by bolts. The connecting plate 1 and the slide bar 2 are fixed as a whole. According to the required distance between the gas cutting surface and the semi-automatic cutting machine, the sliding distance of the slider 3 on the slide bar 2 is controlled to be 10cm. Since the position of the flame cutting nozzle and the semi-automatic cutting machine is fixed in advance, it is equivalent to controlling the distance between the flame cutting nozzle and the positioning plate 5 and the pulley 6 to be 12cm; turn the long screw 4 on the slider 3, and adjust the height between the positioning plate 5, the pulley 6 on the long screw 4 and the cutting nozzle of the semi-automatic cutting machine to 15 to 25cm. After the height is appropriate, use the positioning bolt 7 to position the slider 3. When the cutting operation starts, the pulley 6 rotates close to the inner surface of the structural part, and the semi-automatic cutting machine always maintains the height and distance from the inner surface of the structural part, so that the cross section cut by the flame cutting nozzle maintains the same curvature as the inner surface.

[0033] After actual testing, the cutting groove surface of the product fully meets the product processing quality requirements.

Claims

1. Auxiliary cutting device for semi-automatic cutting machine, characterized by: The invention comprises a connecting plate (1) and a sliding block (3). A mounting hole (8) is provided on one side of the connecting plate (1), and a sliding rod (2) is vertically fixed on the other side of the connecting plate (1); the sliding block (3) is provided with a light hole (9) in the horizontal direction and a large threaded hole (10) in the vertical direction; the sliding block (3) is sleeved on the sliding rod (2); a long screw rod (4) is threadedly connected in the large threaded hole (10) of the sliding block (3); a positioning plate (5) and a pulley (6) are fixedly sleeved on the lower section of the long screw rod (4); a fine threaded hole (11) is provided on the sliding block (3) in a direction perpendicular to the light hole (9), and a positioning bolt (7) is provided in the fine threaded hole (11).

2. The auxiliary cutting device for a semi-automatic cutting machine according to claim 1, characterized in that: The positioning bolt (7) is used to position the slider (3) and the slide bar (2).

3. The auxiliary cutting device for a semi-automatic cutting machine according to claim 1, characterized in that: The long screw (4) is used to adjust the height of the positioning plate (5) and the pulley (6).

4. The auxiliary cutting device for a semi-automatic cutting machine according to claim 1, characterized in that: The slider (3) is mounted on the slide bar (2) through the light hole (9) and is used to adjust the relative distance between the slider (3) and the connecting plate (1).

5. The auxiliary cutting device for a semi-automatic cutting machine according to claim 1, characterized in that: A fixing screw is provided between the long screw rod (4) and the slider (3).

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