Manual cutting groove forming auxiliary device and using method thereof

Abstract

The invention discloses a manual cutting groove forming auxiliary device and a using method thereof, the manual cutting groove forming auxiliary device comprises a structure formed by combining a supporting body, a connecting body and a rotating body, and the device is fixed to the position, close to a cutting nozzle, of the front end of a cutting torch through a clamping piece on the rotating body. Through the transverse adjusting bolt and the height adjusting bolt which are arranged in the transverse direction and the height direction and the rotating body which can rotate relative to the connecting body to change the angle, the height from the cutting nozzle to a workpiece, the transverse size from the cutting nozzle to a cutting seam and the required cutting groove angle can be flexibly adjusted according to construction requirements; the direction and the position of the clamping piece mounted on the cutting torch can be changed through the clamping piece according to the construction environment and the operation habit; the device can be suitable for manual groove cutting work of different plate thicknesses and different angles, manual cutting operation is improved, the groove forming quality in arc-shaped area and narrow space work is improved, the working efficiency is improved, the labor intensity is relieved, and the practicability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a manual beveling auxiliary device and a use method thereof. Background Art

[0002] In the process of shipbuilding, the opening of grooves is a key technology, which directly affects the welding quality and overall performance of the ship structure. There are many traditional methods for groove processing. Among them, the manual cutting torch has the advantages of simple operation, low cost and easy portability, making the manual cutting process one of the indispensable cutting methods. In on-site construction, especially when dealing with narrow areas or surrounding arc-shaped workpieces, grooves need to be opened. Due to the limitation of the workstation space and the reinforcement of the joint edge with connecting horse plates after the steel structure is positioned, many advanced groove opening processes cannot be carried out effectively. It can only be completed by manual cutting. The manual groove opening work in specific areas has become one of the necessary options in on-site construction; however, the precision control of the traditional manual groove opening depends on the construction personnel's mastery of cutting skills and the effective accumulation of construction experience. Therefore, there are the following disadvantages in the manual groove opening process:

[0003] 1. When conventional equipment cannot be used, manual beveling cutting is a test of the operator's business ability, skill level, professional quality, professional ethics, physical fitness and endurance. Due to the uneven skills of operators, there are great differences in the quality and efficiency of manually opened bevels in a small area.

[0004] 2. The smoothness, straightness, smoothness, angle and other parameters of the groove are difficult to meet the design requirements, which increases the effective working time loss of subsequent grinding and repair operations.

[0005] 3. In the construction of bevel in a narrow area, in order to obtain a more perfect cutting effect. The operator must keep the hand steady, often use one hand to control the cutting torch, and use the thumb and little finger of the other hand to open the bevel as a support point. During this period, due to the limitation of space conditions and the change of the running direction of the cutting line, it is difficult to control the distance between the cutting nozzle and the steel plate. If it is too close, the upper end of the bevel is easy to oxidize, and if it is too far, the bevel will become uneven. The instability of the cutting torch during cutting makes the bevel formation not smooth, and the bevel angle size exceeds the tolerance requirements. When the hand is used as a support, the distance between the cutting nozzle and the hand is close, and the high temperature of the flame exceeds the tolerance of the human body, and long-distance continuous cutting cannot be performed.

[0006] 4. In the process of groove opening in arc-shaped areas and narrow spaces, the walking route of groove opening work is dynamically changed due to the influence of the construction environment. This device aims to improve the quality of groove opening in arc-shaped areas and narrow spaces, improve work efficiency and improve the labor intensity of construction personnel, and can complement efficient groove opening equipment. The verticality of the support body is actually an approximate value, which is mainly determined based on the construction personnel's mastery of cutting skills and proficiency in groove opening work. Originally, a backrest was set at this position to ensure the verticality of the support body, but in actual construction, the tooling was mainly designed for arc-shaped areas and narrow spaces. The groove opening position will be affected by various structural reinforcement ribs, connecting horse plates for adjusting the flatness of the weld, etc., which will greatly limit the effective use of the backrest. This device focuses on the requirements of simple, light and flexible structure, which is convenient for the effective development of groove opening work in the environment of dynamic walking cutting route, so the need to set a backrest at the support body position is eliminated. The verticality of the support body and the workpiece can be assisted by a square.

[0007] After searching, the Chinese utility model application document with the existing announcement number CN218926514U discloses an adjustable backing die device for bevel cutting of steel structure components. "The guide slot die and the additional slot die provide a linear guide for the translation of the cutting torch. The angle between the axis of the cutting torch and the surface of the steel structure is changed by adjusting the angle between the guide slot die or the additional slot die and the side of the L-shaped die seat by the angle adjustment screw. The distance between the cutting torch and the surface of the steel structure is changed by adjusting the distance between the slot die support and the top surface of the L-shaped die seat by the height adjustment bolt. The slot die support is connected to the L-shaped die seat by the height adjustment bolt. The seat is placed on the surface of the steel section to provide positioning for the cutting torch. Although the utility model improves the quality and work efficiency of manually opened grooves to a certain extent, the utility model can only be applied to the groove cutting processing of steel sections such as square and rectangular steel pipes and H-shaped steels. This is because the device has very high requirements for the flatness of the steel section surface itself, otherwise it is difficult to operate and thus affects the groove cutting accuracy. Therefore, the device cannot be applied to complex working conditions such as a horse plate or other obstacles on the workpiece to be cut, a narrow construction area, or an arc-shaped area, and has certain limitations. Summary of the invention

[0008] In order to solve the problems existing in the prior art mentioned above, the purpose of the present invention is to provide a manual cutting bevel opening auxiliary device and its use method, which is used to overcome the problem that the angle and smoothness of the manual bevel opening in the existing manual cutting operation cannot be well controlled in the inconvenient construction areas, narrow and curved areas.

[0009] In order to achieve the above-mentioned purpose and other related purposes, the present invention adopts the following technical solutions:

[0010] The present invention provides a manual cutting groove opening auxiliary device and a use method thereof, comprising the following steps:

[0011] S1. Prepare a manual cutting bevel opening auxiliary device:

[0012] The auxiliary device includes a support body, a connecting body and a rotating body, the support body is a right-angle component with internal threads at both ends, the support body includes a vertical section and a horizontal section, the bottom end of the vertical section of the support body is threadedly fixed with a height adjustment bolt, the height adjustment bolt is provided with a first butterfly nut, the lower end of the height adjustment bolt is conical, one end of the connecting body is provided with a transverse adjustment bolt, the connecting body is movably connected to the top end of the horizontal section of the support body through the transverse adjustment bolt, and the transverse adjustment bolt is provided with a locking nut; a clamping piece is fixed to the side of the rotating body, an angle guide bolt is fixed to the back of the rotating body, and an angle adjustment slot is opened on the rotating body, the angle adjustment slot is arc-shaped, and the center of the arc-shaped angle adjustment slot coincides with the central axis of the angle guide bolt, and the angle adjustment slot The groove edge is provided with an angle scale line with a digital mark; the connecting body is provided with a guide hole matching the angle guide bolt, the angle guide bolt passes through the guide hole and is locked and fixed by a third butterfly nut, the front side of the connecting body is fixed with an angle indicating bolt, the angle indicating bolt passes through the angle adjustment slot and is locked and fixed by a second butterfly nut, so that the front side of the connecting body and the back side of the rotating body are fitted and fixed; the cross-sectional shape of the angle indicating bolt is special-shaped, and a pointer-type gasket is further provided between the angle indicating bolt and the second butterfly nut, a positioning hole is provided on the pointer-type gasket, the positioning hole is the same as the cross-sectional shape of the angle indicating bolt, and when the pointer-type gasket is sleeved on the angle indicating bolt through the positioning hole, the needle tip of the pointer-type gasket always points to the angle scale line;

[0013] S2. Clamp and fix the device on the cutting torch: install the device at the front end of the cutting torch near the cutting nozzle through the clamping piece on the rotating body;

[0014] S3. Based on the cutting edge, adjust the angle, horizontal length, verticality, and height of the device in turn according to the cutting groove opening angle requirements, on-site construction environment, and the height of the cutting nozzle from the workpiece to be cut;

[0015] S4, using the contact point between the cone tip and the workpiece to be cut as a reference, drawing a walking trajectory line parallel to the cutting edge line;

[0016] S5. Based on the walking trajectory, adjust the lateral length of the device to the lateral distance between the cutting nozzle and the groove cutting seam required for construction, place the cone tip on the walking trajectory, and move the device at a constant speed along the walking trajectory to complete the groove cutting operation.

[0017] As a preferred technical solution, the clamping member in step S1 includes a fixed clip and a movable clip, the outer side surface of the fixed clip is fixedly connected to the outer right-angle side of the rotating body, the inner side surface of the fixed clip is provided with a fixing bolt perpendicular to the inner side surface of the fixed clip, and the movable clip is provided with a through hole matching the fixing bolt, the movable clip is sleeved on the fixing bolt through the through hole and the movable clip is locked and fixed to the fixed clip by a fourth butterfly nut;

[0018] In step S2, the specific steps include: placing the front end of the cutting torch between the movable clamp and the fixed clamp, and clamping and fixing the front end of the cutting torch by tightening the fourth butterfly nut.

[0019] As a preferred technical solution, the specific steps of step S3 include:

[0020] S3-1. Adjust the angle of the device to meet the required angle of the cutting groove for construction, and adjust the needle tip of the pointer-type gasket to the corresponding angle scale on the angle scale line;

[0021] S3-2, preliminarily adjust the horizontal length of the device to match the on-site construction environment, and preliminarily adjust the verticality between the device and the workpiece to be cut, so that the vertical section of the support body is perpendicular to the plane of the workpiece to be cut;

[0022] S3-3. Adjust the height of the device to a height between the cutting nozzle and the workpiece to be cut that meets the construction requirements.

[0023] As a further preferred technical solution, the specific steps of step S3-1 include: first loosen the second butterfly nut and the third butterfly nut so that the angle adjustment bolt and the pointer-type gasket can move in the angle adjustment groove, rotate the rotating body, adjust the needle tip of the pointer-type gasket to the angle scale on the angle scale line corresponding to the required angle of the groove, and after adjusting the angle of the device to the right position, lock and fix the rotating body and the connecting body through the second butterfly nut and the third butterfly nut to complete the adjustment of the cutting angle.

[0024] As a further preferred technical solution, the specific steps of step S3-2 include: first loosen the locking nut, rotate the support body around the central axis of the transverse adjustment bolt to adjust the transverse length of the device, adjust the transverse length of the device according to the on-site construction environment, so that there are no obstacles on the travel path of the device on the workpiece to be cut; after aligning the cutting nozzle on the cutting torch with the cutting edge line, observe and rotate the support body through a protractor until the verticality between the vertical section of the support body and the plane of the workpiece to be cut is corrected, and then tighten the locking nut and abut it against the connecting end face of the transverse adjustment bolt and the support body.

[0025] As a further preferred technical solution, the specific steps of step S3-3 include: first loosen the first butterfly nut, rotate the height adjustment bolt until the height of the device meets the height of the cutting nozzle from the workpiece to be cut required for construction, and then lock the first butterfly nut and abut against the connecting end face of the height adjustment bolt and the support body.

[0026] As a preferred technical solution, the specific steps of step S5 include:

[0027] S5-1. Based on the walking track line, adjust the horizontal length of the device to the horizontal distance between the cutting nozzle and the groove cutting seam required for construction;

[0028] S5-2. Place the cone tip of the height adjustment bolt against the travel track and re-measure the verticality before cutting;

[0029] S5-3, move the device at a constant speed along the walking trajectory line so that the cone tip is always perpendicular to the walking trajectory line to complete the bevel cutting.

[0030] As a further preferred technical solution, the specific steps of step S5-1 include: loosening the locking nut and rotating the support body to adjust the lateral length of the device, taking the walking trajectory line as a reference, until the lateral length of the device is adjusted to a lateral distance from the cutting nozzle to the groove cut required for construction, controlling the lateral distance from the cutting torch flame to the cutting edge line, and adjusting the lateral width of the cutting groove.

[0031] As a further preferred technical solution, in step S5-3, when a long straight groove is opened, the device is placed against a long backer with a straight surface and moves at a uniform speed.

[0032] As described above, the present invention has the following beneficial effects:

[0033] (1) The manual cutting groove opening auxiliary device and the use method of the present invention can effectively prevent the damage to the hands caused by high cutting temperature, and have a wide range of applications and high work efficiency. By utilizing the use method of the device, the quality of groove opening in arc-shaped areas and narrow spaces can be improved, the smoothness of the groove can be improved, the synchronization between the cutting flame and the cutting edge line during groove opening can be enhanced, and the angle deviation during groove opening can be reduced. At the same time, through the use method of the device, a longer distance of groove cutting can be completed at one time, reducing the need for repeated adjustment and positioning, thereby improving work efficiency. In addition, through the significant increase in the single cutting distance, not only the labor intensity of the operator is improved, but also the subsequent repair workload is reduced.

[0034] (2) A manual beveling auxiliary device and a method of using the same according to the present invention have the advantages of simple structure, compactness, lightness, flexibility and ease of control. In order to take into account the personal habits of the operator, the direction and position of the tooling installed on the cutting torch can be conveniently changed according to the operator's needs without taking up too much space. Moreover, the device can not only flexibly adjust the height of the cutting nozzle from the workpiece to be cut, the lateral size of the cutting nozzle from the cutting seam and the required cutting bevel angle according to the construction requirements, but can also be used for manual beveling work in different working environments such as different plate thicknesses and different angles, thereby improving the flexibility and adaptability of the operation, and can effectively handle and improve the defects of manual cutting of arc-shaped workpiece beveling such as unstable gestures at the turning point and poor cutting smoothness, and can better meet the operational requirements of beveling cutting work in a narrow working environment, thereby significantly improving work efficiency and labor intensity.

[0035] (3) The present invention provides a manual cutting bevel opening auxiliary device and its use method. Through the close locking mechanism of the first butterfly nut and the locking nut, the device of the present invention avoids the loosening or deformation of the connection between the height adjustment bolts and the lateral adjustment bolts threaded on both ends of the support body due to collision during the cutting process, thereby further improving the stability and reliability of the device.

[0036] (4) The present invention provides a manual cutting bevel opening auxiliary device and its use method. The device can also complement a conventional cutting backing, play a positive effect in reducing the difficulty of opening long-distance straight bevels in narrow construction areas, improve practicality, and play a certain role in promoting cost reduction and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The present invention is a schematic diagram of the front three-dimensional structure of a manual cutting groove opening auxiliary device.

[0038] Figure 2 It is a back three-dimensional structural schematic diagram of a manual cutting groove opening auxiliary device of the present invention.

[0039] Figure 3 It is a partial enlarged view of the pointer-type gasket and the angle scale line in the present invention.

[0040] Figure 4 It is a schematic diagram of the use of the device after being fixed on the cutting torch in the present invention.

[0041] Among them, the specific descriptions of the accompanying drawings are as follows: 1. Support body; 11. First butterfly nut; 12. Height adjustment bolt; 13. Locking nut; 2. Connecting body; 21. Angle indication bolt; 22. Pointer-type gasket; 23. Second butterfly nut; 24. Lateral adjustment bolt; 3. Rotating body; 31. Angle guide bolt; 32. Clamping piece; 33. Fixed clip; 34. Active clip; 35. Fourth butterfly nut; 36. Fixed bolt; 37. Angle scale line; 38. Third butterfly nut; 39. Angle adjustment slot; 4. Cutting torch; 5. Workpiece to be cut; 6. Cutting edge line; 7. Walking trajectory line. DETAILED DESCRIPTION

[0042] In order to better understand the purpose, structure and function of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] In the description of the present invention, it should be noted that the positional relationships indicated by terms such as “longitudinal”, “lateral”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc. cited in this specification are based on the positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] Example 1

[0045] like Figures 1 to 3 As shown, this embodiment provides a manual cutting bevel opening auxiliary device for assisting the bevel opening operation on the workpiece 5 to be cut along the cutting edge 6 in a narrow space and in an arc-shaped area by a manual cutting torch 4, and the auxiliary device includes a support body 1, a connecting body 2 and a rotating body 3.

[0046] The support body 1 is a right-angle component with internal threads at both ends, and the right-angle component is in an inverted L shape. The support body 1 includes a vertical section and a horizontal section. The bottom end of the vertical section of the support body 1 is threadedly fixed with a height adjustment bolt 12, and the height adjustment bolt 12 has an external thread that matches the internal thread of the vertical section of the support body 1. The height adjustment bolt 12 is provided with a first butterfly nut 11, and the height adjustment bolt 12 is locked and fixed by the first butterfly nut 11 when adjusting the support height; in this embodiment, the height adjustment bolt 12 is made of stainless steel. The lower end of the bolt 12 is conical, and the cone tip of the cone can be made by cutting, so as to facilitate the movement of the height adjustment bolt 12 in a direction parallel to the cutting edge line 6; one end of the connecting body 2 is provided with a transverse adjustment bolt 24, and the transverse adjustment bolt 24 has an external thread matching the internal thread of the horizontal section of the support body 1. The connecting body 2 is movably connected to the top end of the horizontal section of the support body 1 through the transverse adjustment bolt 24, and a locking nut 13 is provided on the transverse adjustment bolt 24, and the locking nut 13 is used for locking the transverse adjustment bolt 24 after it is adjusted into place.

[0047] The rotating body 3 is in the shape of a right-angled sector, and a clamping piece 32 is fixed to one right-angled side of the rotating body 3. The clamping piece 32 includes a fixed clip 33 and a movable clip 34. The outer side surface of the fixed clip 33 is fixedly connected to the outer right-angled side of the rotating body 3, and the inner side surface of the fixed clip 33 is provided with a fixing bolt 36 perpendicular to the inner side surface of the fixed clip 33. The movable clip 34 is provided with a through hole matching the fixing bolt 36. The movable clip 34 is sleeved on the fixing bolt 36 through the through hole and the movable clip 34 is locked and fixed to the fixed clip 33 by a fourth butterfly nut 35; a gap is provided between the fixed clip 33 and the movable clip 34, and the gap has a shape matching the cross-section of the cutting torch 4, thereby improving the clamping stability of the clamping piece 32 on the cutting torch 4.

[0048] An angle guide bolt 31 is fixed on the back of the rotating body 3, and an angle adjustment slot 39 is provided on the rotating body 3. The angle adjustment slot 39 is arc-shaped, and the center of the arc angle adjustment slot 39 coincides with the central axis of the angle guide bolt 31. The groove edge of the angle adjustment slot 39 is provided with an angle scale line 37 with a digital mark, so as to adjust the cutting angle parameter before cutting. A guide hole matching the angle guide bolt 31 is provided on the connecting body 2. The angle guide bolt 31 passes through the guide hole and is locked and fixed by a third butterfly nut 38. An angle indication bolt 21 is fixed on the front of the connecting body 2. The angle indication bolt 21 passes through the angle adjustment slot 39 and is locked and fixed by a second butterfly nut 23, so that the front of the connecting body 2 is fitted and fixed with the back of the rotating body 3. The angle guide bolt 31 and the angle indication bolt 21 form a combined force, which can make the overall structure more stable, avoiding the risk of collision and wire rotation deformation that may exist when the connecting body 2 and the rotating body 3 are connected by a single bolt. The cross-sectional shape of the angle indicating bolt 21 is special-shaped. In the present embodiment, the shape of the angle indicating bolt 21 can be made by cutting. A pointer-type gasket 22 is also provided between the angle indicating bolt 21 and the second butterfly nut 23. A positioning hole is provided on the pointer-type gasket 22. The positioning hole has the same cross-sectional shape as the angle indicating bolt 21. When the pointer-type gasket 22 is sleeved on the angle indicating bolt 21 through the positioning hole, the needle tip of the pointer-type gasket 22 always points to the angle scale line 37. According to the angle scale pointed to by the tip of the pointer-type gasket 22, it can be judged whether the required cutting groove angle is adjusted in place, thereby improving the accuracy of the device angle adjustment and thus improving the groove cutting quality.

[0049] Example 2

[0050] This embodiment provides a method for using a manual cutting groove opening auxiliary device using embodiment 1, which is used to assist in the groove opening operation on the workpiece 5 to be cut along the cutting edge 6 in a narrow space and in an arc-shaped area by a manual cutting torch 4. The travel route of the device changes dynamically. The method includes the following steps:

[0051] S1, such as Figure 1 and Figure 3 As shown, a manual cutting groove opening auxiliary device as in Example 1 is prepared:

[0052] S2, such as Figure 4 As shown, the device is clamped and fixed on the cutting torch 4:

[0053] The device is installed at the front end of the cutting torch 4 near the cutting nozzle through the clamping piece 32 on the rotating body 3, which provides convenience for the opening of grooves in narrow areas and arc-shaped areas, and improves the use range and portability of the device; specifically, the front end of the cutting torch 4 is placed between the movable clip 34 and the fixed clip 33, and the front end of the cutting torch 4 is clamped and fixed by tightening the fourth butterfly nut 35.

[0054] The direction and position of the device installed on the cutting torch 4 can be adjusted according to the on-site construction environment and the operating habits of the operator to adapt to the operating requirements in different working environments, and can be applicable to the manual cutting of bevels of different plate thicknesses and different angles. Specifically, in the on-site construction environment, for example, when there is an obstacle on the right side of the workpiece 5 to be cut, resulting in no operating space, the device can be installed on the left side of the cutting torch 4. In the operating habits of the operator, for example, when the operator's dominant hand is the left hand, the grip of the cutting torch 4 can be adjusted to the side of the dominant hand and then the device can be clamped on the cutting torch 4.

[0055] S3. Taking the cutting edge line 6 as a reference, the angle, horizontal length, verticality, and height of the device are adjusted in turn according to the cutting groove opening angle requirements required for construction, the on-site construction environment, and the height of the cutting nozzle from the workpiece 5 to be cut, so that the lower end cone tip of the device height adjustment bolt 12 falls vertically on the flat plate surface of the workpiece 5 to be cut.

[0056] S3-1. Adjust the angle of the device to meet the required cutting groove opening angle for construction, and adjust the needle tip of the pointer-type gasket 22 to the corresponding angle scale on the angle scale line 37: first loosen the second butterfly nut 23 and the third butterfly nut 38, so that the angle adjustment bolt and the pointer-type gasket 22 can move in the angle adjustment groove 39, rotate the rotating body 3, and adjust the needle tip of the pointer-type gasket 22 to the angle scale on the angle scale line 37 corresponding to the required angle for the groove opening. After the angle of the device is adjusted to the right position, the rotating body 3 and the connecting body 2 are locked and fixed by the second butterfly nut 23 and the third butterfly nut 38 to complete the adjustment of the cutting angle.

[0057] S3-2. Preliminarily adjust the lateral length of the device to match the on-site construction environment, and preliminarily adjust the verticality between the device and the workpiece 5 to be cut, so that the vertical section of the support body 1 is perpendicular to the plane of the workpiece 5 to be cut: first loosen the locking nut 13, rotate the support body 1 around the central axis of the lateral adjustment bolt 24 to adjust the lateral length of the device, and adjust the lateral length of the device according to the on-site construction environment so that there are no obstacles on the travel route of the device on the workpiece 5 to be cut. The obstacles include but are not limited to horse plates or raised structures welded on the workpiece 5 to be cut; after aligning the cutting nozzle on the cutting torch 4 with the cutting edge 6, observe and rotate the support body 1 through a protractor until the verticality between the vertical section of the support body 1 and the plane of the workpiece 5 to be cut is corrected, and then tighten the locking nut 13 and abut against the connecting end face of the lateral adjustment bolt 24 and the support body 1.

[0058] S3-3. Adjust the height of the device to a height that meets the requirements of the construction, that is, the distance between the cutting nozzle and the workpiece 5 to be cut: first loosen the first butterfly nut 11, rotate the height adjustment bolt 12 until the height of the device meets the requirements of the construction, that is, the distance between the cutting nozzle and the workpiece 5 to be cut, and then tighten the first butterfly nut 11 and abut it against the connecting end face of the height adjustment bolt 12 and the support body 1.

[0059] S4. Using the contact point between the lower end cone tip of the height adjustment bolt 12 and the flat plate surface of the workpiece 5 to be cut as a reference, draw a walking track line 7 parallel to the cutting edge line 6.

[0060] S5, place the cone tip on the walking track line 7, adjust the lateral length of the device to the lateral distance between the cutting nozzle and the groove cutting seam required for construction, place the cone tip on the walking track line 7, and move the device at a uniform speed along the walking track line 7 to complete the groove cutting operation:

[0061] S5-1. With the walking trajectory line 7 as a reference, adjust the lateral length of the device to the lateral distance between the cutting nozzle and the groove slit required for construction: With the walking trajectory line 7 as a reference, adjust the lateral length of the device by loosening the locking nut 13 and rotating the support body 1 until the lateral length of the device meets the lateral distance between the cutting nozzle and the groove slit required for construction. By adjusting the lateral length of the device again, it is possible to control the lateral distance between the cutting torch 4 flame and the cutting edge line 6 while ensuring that there are no obstacles on the device's travel route, thereby ensuring the lateral width of the cutting groove.

[0062] S5-2. Place the conical tip of the height adjustment bolt 12 against the travel trajectory 7, and remeasure the verticality before cutting: Place the conical tip of the height adjustment bolt 12 against the travel trajectory 7, and use a protractor to remeasure the verticality between the support 1 and the workpiece 5 to be cut, so that the vertical section of the support 1 is perpendicular to the plane of the workpiece 5 to be cut and remains stable.

[0063] S5-3, move the device at a constant speed along the walking trajectory 7, so that the cone tip is always perpendicular to the walking trajectory 7, and complete the bevel cutting: by controlling the cone tip to move vertically and uniformly along the walking trajectory 7, correspondingly, the cutting flame of the cutting torch 4 moves at a constant speed along the parallel cutting edge 6, and an ideal bevel can be obtained through synchronous movement, thereby ensuring the cutting quality; and, through the close locking of the first butterfly nut 11 and the locking nut 13 in the aforementioned steps, it is possible to effectively avoid the loosening or deformation of the connection between the height adjustment bolt 12 and the lateral adjustment bolt 24 threadedly fixed at both ends of the support body 1 due to collision during the cutting process.

[0064] In other embodiments, when opening a long straight groove, the device is placed against a long backer with a straight surface and moves at a constant speed to perform a longer distance groove cutting operation; the long backer includes but is not limited to materials with straight surfaces such as angle irons or channel steels.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A manual cutting beveling auxiliary device and a method of using the same, for assisting a manual cutting torch (4) in performing a beveling operation on a workpiece (5) to be cut along a cutting edge (6) in a narrow space and in an arc-shaped area, characterized in that: The following steps are included: S1. Prepare a manual cutting bevel opening auxiliary device: The auxiliary device comprises a support body (1), a connecting body (2) and a rotating body (3); the support body (1) is a right-angle component with internal threads at both ends; the support body (1) comprises a vertical section and a horizontal section; a height adjustment bolt (12) is threadedly fixed to the bottom end of the vertical section of the support body (1); a first butterfly nut (11) is provided on the height adjustment bolt (12); the lower end of the height adjustment bolt (12) is conical; one end of the connecting body (2) is provided with a transverse adjustment bolt (24); the connecting body (2) is arranged to rotate horizontally. A lateral adjustment bolt (24) is movably connected to the top end of the horizontal section of the support body (1), and a locking nut (13) is provided on the lateral adjustment bolt (24); a clamping piece (32) is fixed on the side of the rotating body (3), an angle guide bolt (31) is fixed on the back of the rotating body (3), and an angle adjustment groove (39) is provided on the rotating body (3), the angle adjustment groove (39) is arc-shaped, and the center of the arc-shaped angle adjustment groove (39) coincides with the central axis of the angle guide bolt (31), and the angle adjustment groove (39) is provided on the rotating body (3). The groove edge of the joint groove (39) is provided with an angle scale line (37) with a digital mark; the connecting body (2) is provided with a guide hole matched with the angle guide bolt (31), the angle guide bolt (31) passes through the guide hole and is locked and fixed by a third butterfly nut (38); the front side of the connecting body (2) is fixed with an angle indicating bolt (21), the angle indicating bolt (21) passes through the angle adjustment groove (39) and is locked and fixed by a second butterfly nut (23), so that the front side of the connecting body (2) is aligned with the rotating body (3) The back side is fitted and fixed; the cross-sectional shape of the angle indicating bolt (21) is a special shape, and a pointer-type gasket (22) is provided between the angle indicating bolt (21) and the second butterfly nut (23), and a positioning hole is provided on the pointer-type gasket (22), and the positioning hole has the same cross-sectional shape as the angle indicating bolt (21), and when the pointer-type gasket (22) is sleeved on the angle indicating bolt (21) through the positioning hole, the needle tip of the pointer-type gasket (22) always points to the angle scale line (37); S2. Clamp and fix the device on the cutting torch (4): install the device at the front end of the cutting torch (4) near the cutting nozzle through the clamping member (32) on the rotating body (3); S3, taking the cutting edge (6) as a reference, adjusting the angle, horizontal length and verticality, and height of the device in turn according to the cutting groove opening angle requirements required for construction, the on-site construction environment, and the height of the cutting nozzle from the workpiece to be cut (5); S4, using the contact point between the cone tip and the workpiece to be cut (5) as a reference, drawing a walking trajectory line (7) parallel to the cutting edge line (6); S5, placing the cone tip on the walking track line (7), adjusting the lateral length of the device to a lateral distance between the cutting nozzle and the groove cutting seam required for construction, placing the cone tip on the walking track line (7), and moving the device at a uniform speed along the walking track line (7) to complete the groove cutting operation.

2. A manual cutting groove opening auxiliary device and a method of using the same according to claim 1, characterized in that: The clamping member (32) in step S1 comprises a fixed clamp (33) and a flexible clamp (34), the outer side surface of the fixed clamp (33) is fixedly connected to the outer right-angle side of the rotating body (3), the inner side surface of the fixed clamp (33) is provided with a fixing bolt (36) perpendicular to the inner side surface of the fixed clamp (33), the flexible clamp (34) is provided with a through hole matching the fixing bolt (36), the flexible clamp (34) is sleeved on the fixing bolt (36) through the through hole and the flexible clamp (34) is locked and fixed to the fixed clamp (33) by a fourth butterfly nut (35); In step S2, the specific steps include: placing the front end of the cutting torch (4) between the movable clamp (34) and the fixed clamp (33), and clamping and fixing the front end of the cutting torch (4) by tightening the fourth butterfly nut (35).

3. A manual cutting groove opening auxiliary device and a method of using the same according to claim 1, characterized in that: The specific steps of step S3 include: S3-1, adjusting the angle of the device to meet the required angle of the cutting groove for construction, and adjusting the needle tip of the pointer-type gasket (22) to the corresponding angle scale on the angle scale line (37); S3-2, preliminarily adjusting the lateral length of the device to conform to the on-site construction environment, and preliminarily adjusting the verticality between the device and the workpiece (5) to be cut, so that the vertical section of the support body (1) is perpendicular to the plane of the workpiece (5) to be cut; S3-3, adjusting the height of the device to a height between the cutting nozzle and the workpiece (5) to be cut that meets the construction requirements.

4. A manual cutting groove opening auxiliary device and a method of using the same according to claim 3, characterized in that: The specific steps of step S3-1 include: firstly loosening the second butterfly nut (23) and the third butterfly nut (38) to allow the angle adjustment bolt and the pointer-type gasket (22) to move in the angle adjustment groove (39), rotating the rotating body (3), adjusting the needle tip of the pointer-type gasket (22) to the angle scale on the angle scale line (37) corresponding to the angle required for the groove to be opened, and after the angle of the device is adjusted to the desired position, locking and fixing the rotating body (3) and the connecting body (2) by the second butterfly nut (23) and the third butterfly nut (38) to complete the adjustment of the cutting angle.

5. A manual cutting groove opening auxiliary device and a method of using the same according to claim 3, characterized in that: The specific steps of step S3-2 include: firstly loosening the locking nut (13), rotating the support body (1) around the central axis of the transverse adjustment bolt (24) to adjust the transverse length of the device, and adjusting the transverse length of the device according to the on-site construction environment so that there are no obstacles on the path of the device on the workpiece (5) to be cut; after aligning the cutting nozzle on the cutting torch (4) with the cutting edge line (6), observing and rotating the support body (1) through a protractor until the verticality between the vertical section of the support body (1) and the plane of the workpiece (5) to be cut is corrected, and then locking the locking nut (13) and pressing it against the connecting end face of the transverse adjustment bolt (24) and the support body (1).

6. A manual cutting groove opening auxiliary device and a method of using the same according to claim 3, characterized in that: The specific steps of step S3-3 include: first loosening the first butterfly nut (11), rotating the height adjustment bolt (12) until the height of the device meets the height required by the construction between the cutting nozzle and the workpiece (5) to be cut, and then locking the first butterfly nut (11) and pressing it against the connecting end surface of the height adjustment bolt (12) and the support body (1).

7. A manual cutting groove opening auxiliary device and a method of using the same according to claim 1, characterized in that: The specific steps of step S5 include: S5-1, taking the walking track line (7) as a reference, adjusting the lateral length of the device to a lateral distance between the cutting nozzle and the groove cutting seam required for construction; S5-2, place the cone tip of the height adjustment bolt (12) against the travel track line (7), and re-measure the verticality before cutting; S5-3, moving the device at a constant speed along the walking track line (7) so that the cone tip is always perpendicular to the walking track line (7) to complete the groove cutting.

8. A manual cutting groove opening auxiliary device and a method of using the same according to claim 7, characterized in that: The specific steps of step S5-1 include: adjusting the lateral length of the device by loosening the locking nut (13) and rotating the support body (1), taking the walking trajectory line (7) as a reference, until the lateral length of the device is adjusted to a lateral distance between the cutting nozzle and the groove cut seam required for construction, controlling the lateral distance between the flame of the cutting torch (4) and the cutting edge line (6), and adjusting the lateral width of the cutting groove.

9. A manual cutting groove opening auxiliary device and a method of using the same according to claim 7, characterized in that: In step S5-3, when a long straight groove is opened, the device is placed against a long backer with a straight surface and moves at a uniform speed.

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