A cutting method and cutting device for a magnetic trolley in the form of a full automatic cutting of a sinusoidal wave curve

Abstract

The application relates to the technical field of curve cutting, in particular to a cutting method and a cutting device for automatically cutting a sine wave curve form by using a magnetic trolley, which comprises a magnetic trolley body, a first driving element arranged on the magnetic trolley body and used for driving the trolley to move, a cutting machine body used for performing a cutting operation, and a mounting seat movably arranged on a horizontal movement adjusting assembly and reciprocally sliding along a direction perpendicular to the moving direction of the magnetic trolley body under the driving of the horizontal movement adjusting assembly. The vertical movement of the magnetic trolley body and the horizontal movement of the cutting machine body are superposed with each other, the cutting nozzle of the cutting machine body moves along a sine wave curve form, and thus the workpiece is cut in a sine wave curve form; the degree of automation is high, four cutting workers do not need to manually operate the cutting, harmful gas and smoke generated during the cutting is reduced, and the pollution degree of the environment is reduced. The cutting machine body is driven to swing in real time according to the fluctuation change of the surface of the workpiece to be cut through a push-pull mechanism.

Description

Technical Field

[0001] This invention relates to the field of curve cutting technology, and in particular to a fully automated cutting method and cutting device for cutting sinusoidal waveform curves using a magnetic trolley. Background Technology

[0002] Magnetic track cutting machines are widely used in cutting large metal sheets due to their small size, portability, and low cost. Currently, most magnetic track cutting machines can only perform straight-line cutting, and the few capable of curved cutting require manual operation. This manual method results in a large workload, high operator fatigue, and the need for four skilled operators simultaneously. It also produces significant amounts of carbon monoxide and fumes, creating a poor working environment and causing pollution. Furthermore, manual cutting of curved edges suffers from low precision, slow speed, and low production efficiency. While planar CNC cutting machines offer higher precision and speed, their fixed position limits the size of the workpiece and they cannot cut curved surfaces. Portable small CNC cutting machines can achieve high-precision curved cutting, but their cost is high, and maintenance expenses are substantial.

[0003] In applications requiring the cutting of complex trajectories such as sinusoidal curves, the surface of the workpiece is often not an ideal plane but rather exhibits certain undulations. Fluctuations in the distance between the cutting nozzle and the workpiece surface directly affect the cutting quality—too large a distance leads to insufficient cutting and uneven kerf, while too small a distance may cause the nozzle to scrape against the workpiece or even damage the nozzle. Existing magnetic carriage cutting devices generally lack an adaptive adjustment mechanism for workpiece surface undulations. The height of the cutting nozzle relative to the workpiece surface remains constant, making it difficult to ensure that the cutting nozzle maintains a suitable cutting distance despite changes in the workpiece surface, thus affecting the accuracy and kerf quality of sinusoidal curve cutting. Summary of the Invention

[0004] The main objective of this invention is to provide a fully automated cutting method and device for cutting sinusoidal waveform curves using a magnetic trolley, in order to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a fully automated cutting method for a magnetic trolley to cut sinusoidal waveform curves is provided, comprising the following steps: S1: A cutting machine body is mounted on the magnetic trolley body, and the magnetic trolley body is placed at the starting cutting position of the workpiece to be cut; S2: Select the appropriate cutting nozzle based on the thickness of the workpiece to be cut, and complete the gas pipeline connection and flame adjustment: S3: Start the magnetic trolley body to move along the surface of the workpiece to be cut, and at the same time start the transverse adjustment component to drive the cutting machine body to reciprocate along a direction perpendicular to the direction of travel, so that the cutting nozzle of the cutting machine body moves according to the preset sine wave curve trajectory. S4: During the movement of the magnetic trolley body, the undulation changes of the surface of the workpiece to be cut are detected by the push-pull mechanism, and the cutting machine body is driven to swing according to the undulation changes to adjust the distance between the cutting nozzle and the surface of the workpiece to be cut. S5: After cutting is completed, shut down the cutting machine body and stop the movement of the magnetic trolley body and the lateral adjustment assembly.

[0006] Another aspect of the present invention provides a fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley, comprising: A magnetic vehicle body, wherein the magnetic vehicle body is provided with a first driving component for driving its movement; The cutting machine body is used to perform cutting operations; A lateral adjustment assembly is disposed on the magnetic trolley body; the lateral adjustment assembly includes a lateral lead screw and a power source for driving the lateral lead screw to rotate; The mounting base is movably mounted on the transverse adjustment component and slides back and forth along the direction perpendicular to the travel direction of the magnetic trolley body under the drive of the transverse adjustment component; A locking mechanism is provided on the mounting base for clamping and fixing the cutting machine body; A push-pull mechanism, mounted on the mounting base, is used to drive the cutting machine body to swing according to the surface undulations of the workpiece to be cut, thereby adjusting the distance between the cutting nozzle of the cutting machine body and the surface of the workpiece to be cut; the push-pull mechanism includes: A push-pull vertical plate is fixed on the mounting base, and the push-pull vertical plate is provided with a sliding groove; A horizontal push-pull plate is slidably connected to the vertical push-pull plate. The second diagonal bar is fixedly connected at one end to the push-pull horizontal plate and slidably connected at the other end to the push-pull vertical plate. An elastic element, whose two ends are fixedly connected to the push-pull vertical plate and the second diagonal bar respectively, is used to provide an elastic force to drive the push-pull horizontal plate to slide downward; The first diagonal rod is fixedly connected at one end to the push-pull horizontal plate; The mounting block is hinged to the other end of the first inclined rod, and the cutting nozzle of the cutting machine body is fixed to the mounting block; Furthermore, the bottom of the push-pull horizontal plate is provided with a roller for rolling contact with the surface of the workpiece to be cut; the roller moves the push-pull horizontal plate along the undulation of the workpiece surface and drives the mounting block to swing through the first inclined rod.

[0007] Furthermore, the elastic element is a second spring, and the two ends of the second spring are fixedly connected to the top of the push-pull vertical plate and the second diagonal rod, respectively. When the second spring naturally extends, it drives the push-pull horizontal plate to slide downward.

[0008] Furthermore, the locking mechanism includes: The locking screw is rotatably mounted on the mounting base; A fixing frame is detachably connected to the mounting base, and one end of the locking screw is rotatably connected to the fixing frame. Two clamping assemblies are arranged opposite to each other. Each clamping assembly includes a threaded sleeve threaded onto the locking screw and a locking block fixed onto the threaded sleeve. The internal threads of the two threaded sleeves are in opposite directions. When the locking screw rotates, the two clamping assemblies move closer or further apart to clamp or release the cutting machine body.

[0009] Furthermore, the mounting base is provided with a bearing, the inner ring of the bearing is provided with a spline groove, one end of the locking screw is provided with a spline that matches the spline groove, the spline is inserted into the spline groove, and the locking screw is rotatably supported on the mounting base by the bearing.

[0010] Furthermore, the two locking blocks are respectively a first locking block and a second locking block, and the two threaded sleeves are respectively a first threaded sleeve and a second threaded sleeve; The first threaded sleeve is fixedly provided with the first locking block, and the first locking block extends toward the second locking block to form a first locking block, and the first locking block is provided with a first locking groove; The second threaded sleeve is fixedly provided with the second locking block, and the second locking block extends toward the first locking block to form a second locking block, and the second locking block is provided with a second locking groove; When the two locking blocks approach each other, the first locking block is embedded in the second locking groove, and the second locking block is embedded in the first locking groove, and the two locking blocks enclose a clamping space.

[0011] Furthermore, it also includes a guide mechanism disposed on the mounting base, and the clamping assembly is provided with a guide block that cooperates with the guide mechanism. The guide mechanism is used to restrict the clamping assembly from rotating with the locking screw.

[0012] Furthermore, the guiding mechanism includes: A guide plate is fixedly mounted on the mounting base, and a guide groove is provided on the guide plate, with the guide block slidably disposed in the guide groove; A vertical column is slidably mounted on the guide plate, and a horizontal column is fixedly mounted on the vertical column. One end of the horizontal column extends into the guide groove to restrict the sliding of the guide block. An elastic reset element, connected to the crossbar, is used to provide an elastic force that drives the crossbar into the guide groove.

[0013] Furthermore, the clamping assembly is provided with a wedge block. When the wedge block moves with the clamping assembly, the inclined surface of the wedge block abuts against the vertical column to drive the vertical column to slide and drive the horizontal column to exit from the guide groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The vertical movement of the magnetic trolley body and the horizontal movement of the cutting machine body are superimposed, causing the cutting nozzle of the cutting machine body to move along a sinusoidal waveform curve, thereby cutting the workpiece in a sinusoidal waveform curve. The degree of automation is high, eliminating the need for four cutting workers to manually operate the cutting, reducing the harmful gases and fumes generated during cutting, and reducing the degree of environmental pollution.

[0015] 2. The push-pull mechanism drives the cutting machine body to swing in real time according to the undulation of the workpiece surface, so that the distance between the cutting nozzle and the workpiece surface remains constant. This effectively solves the technical problem of unstable cutting quality caused by uneven workpiece surface and improves the cutting accuracy and cut quality of the sine wave curve under different undulation conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall invention; Figure 2 This is a schematic diagram of the cutting machine body of the present invention mounted on the mounting base; Figure 3 This is a schematic diagram of the locking mechanism of the present invention installed on the mounting base; Figure 4 This is a schematic diagram of the locking mechanism structure of the present invention; Figure 5 This is a schematic diagram of the guiding mechanism structure of the present invention; Figure 6 This is a partially enlarged schematic diagram of the present invention; Figure 7 This is a schematic diagram of the push-pull mechanism structure of the present invention; Figure 8 This is a schematic diagram of the cutting machine body of the present invention in a vertical position; Figure 9 This is a schematic diagram of the cutting machine body of the present invention in an inclined state.

[0017] Figure label: 1. Magnetic trolley body; 3. Cutting machine body; 4. Horizontal lead screw mounting base plate; 5. Horizontal lead screw mounting end plate; 6. Second motor; 7. Mounting base; 8. Push-pull mechanism; 81. Push-pull vertical plate; 82. Push-pull horizontal plate; 83. Mounting block; 84. First diagonal bar; 85. Second diagonal bar; 86. Sliding block; 87. Sliding groove; 88. Roller; 89. Second spring; 9. Locking mechanism; 91. Locking screw; 92. First knob; 93. Spline; 94. Fixing screw; 95. Second knob; 96. Fixing bracket; 97. First leg; 98. Second leg; 99. U-groove; 10. Locking plate; 11. Support plate; 12. Clamp; 13. Guiding mechanism; 131. Guide plate; 132. Vertical column; 133. Slide groove; 134. Horizontal column; 135. Guide groove; 136. Limiting block; 137. Limiting groove; 138. Horizontal groove; 139. First spring; 14. Connecting rod; 15. Clamping mechanism; 150. First locking tooth; 151. First threaded sleeve; 152. Second threaded sleeve; 153. First locking block; 154. Second locking block; 155. First locking block; 156. First locking groove; 157. Second locking block; 158. Second locking groove; 159. Second locking tooth; 16. Bearing; 17. Spline groove; 18. Wedge block; 19. Guide block; 20. Transverse lead screw. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] This embodiment provides a fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley, such as... Figure 1As shown, the device includes a magnetic trolley body 1 and a cutting machine body 3 mounted on the magnetic trolley body 1. The magnetic trolley body 1 is equipped with a first driving component for driving its movement. In this embodiment, the first driving component is a first motor, and the output shaft of the first motor is connected to the drive wheel of the magnetic trolley body 1 to provide driving power. A transverse lead screw mounting base plate 4 is detachably fixed to the side of the magnetic trolley body 1 by screws, and the transverse lead screw mounting base plate 4 extends horizontally along the length of the magnetic trolley body 1. The transverse adjustment assembly includes transverse lead screw mounting end plates 5 fixedly disposed at both ends of the transverse lead screw mounting base plate 4, and a transverse lead screw 20 is rotatably mounted between the two transverse lead screw mounting end plates 5 via bearing seats. A second motor 6 is fixedly mounted on the outer side of one of the transverse lead screw mounting end plates 5. The second motor 6 serves as a power source, and its output shaft is fixedly connected to the end of the transverse lead screw 20 to drive the transverse lead screw 20 to rotate. A mounting seat 7 is threaded onto the transverse lead screw 20, and the mounting seat 7 is slidably connected to the transverse lead screw mounting base plate 4. When the transverse lead screw 20 rotates, it drives the mounting seat 7 to slide back and forth on the transverse lead screw mounting base plate 4 in a direction perpendicular to the travel direction of the magnetic trolley body 1.

[0020] like Figure 2 As shown, locking plates 10 and support plates 11 are vertically and parallelly fixed at both ends of the outer side of the mounting base 7. The locking plates 10 and support plates 11 are used to install the locking mechanism 9. A guide mechanism 13 is fixedly provided on the mounting base 7 between the locking plates 10 and the support plates 11, such as... Figure 3 As shown.

[0021] like Figure 4 As shown, the locking mechanism 9 includes a locking screw 91, a fixing screw 94, and a fixing frame 96. One end of the locking screw 91 is rotatably connected to the fixing frame 96, and the other end is fixedly provided with a spline 93. A first knob 92 is rotatably provided on the outer side of the fixing frame 96. The first knob 92 is fixedly connected to the locking screw 91, and rotating the first knob 92 will drive the locking screw 91 to rotate. A first leg 97 and a second leg 98 that are parallel to each other are fixedly provided on the fixing frame 96, and a U-shaped groove 99 is formed between the first leg 97 and the second leg 98. The fixing screw 94 is threadedly connected to the first leg 97, and a second knob 95 is fixedly provided on the outer end of the fixing screw 94. Rotating the second knob 95 will drive the fixing screw 94 to rotate.

[0022] A bearing 16 is provided on the inner side of the support plate 11. The outer ring of the bearing 16 is fixedly connected to the support plate 11, and the inner ring has a spline groove 17 that is compatible with the spline 93. When the spline 93 is inserted into the spline groove 17, the bearing 16 rotates and supports one end of the locking screw 91 on the support plate 11. The inner end of the fixing screw 94 is pulled out of the U-shaped groove 99, and the U-shaped groove 99 is locked onto the locking plate 10. The second knob 95 is rotated to make the fixing screw 94 extend into the U-shaped groove 99 and abut against the locking plate 10, thereby fixing the fixing bracket 96 onto the locking plate 10 and completing the installation of the locking mechanism 9.

[0023] like Figure 4 As shown, a clamping mechanism 15 is provided on the locking screw 91, which is used to mount the cutting machine body 3. The clamping mechanism 15 includes two clamping components arranged opposite to each other. Each clamping component includes a threaded sleeve threaded onto the locking screw 91 and a locking block fixed on the threaded sleeve. The threaded sleeves are a first threaded sleeve 151 and a second threaded sleeve 152. Both the first threaded sleeve 151 and the second threaded sleeve 152 are threaded onto the locking screw 91, and their internal threads have opposite directions. Therefore, when the locking screw 91 is rotated, the first threaded sleeve 151 and the second threaded sleeve 152 move closer to each other or further away from each other. The locking blocks consist of a first locking block 153 and a second locking block 154. The first locking block 153 is fixedly mounted on the first threaded sleeve 151. A first locking block 155 is formed on the top of the first locking block 153. Several first locking teeth 150 are fixedly provided on both the upper and lower surfaces of the first locking block 155. An open first locking groove 156 is formed on the first locking block 153 below the first locking block 155. The second locking block 154 is fixedly mounted on the second threaded sleeve 152. A second locking block 157 is formed above the second locking block 154. An open second locking groove 158 is formed on the second locking block 154 at the top of the second locking block 157. Several second locking teeth 159 are fixedly provided on both the upper and lower sides of the second locking groove 158. The first locking block 155 is directly opposite the second locking groove 158, and the second locking block 157 is directly opposite the first locking groove 156.

[0024] A connecting rod 14 is hinged to the cutting machine body 3, allowing the cutting machine body 3 to swing up and down around the hinge point with the connecting rod 14. The first locking block 153 and the second locking block 154 are both arc-shaped locking blocks, which together form a circular slot. The diameter of this circular slot is adapted to the connecting rod 14 to accommodate and fix it. A wedge block 18 and a guide block 19 are fixedly provided on the side of the first locking block 153 and the second locking block 154 facing the mounting base 7, with the wedge block 18 positioned above the guide block 19.

[0025] When the first threaded sleeve 151 and the second threaded sleeve 152 approach each other, the first locking block 155 inserts into the second locking groove 158, and at the same time, the second locking block 157 inserts into the first locking groove 156. The first locking teeth 150 and the second locking teeth 159 mesh with each other, increasing the friction of the contact surface and preventing the first locking blocks 155 and the second locking blocks 157 from disengaging, thus enhancing the clamping force on the connecting rod 14. When it is necessary to disassemble the cutting machine body 3, the locking screw 91 is rotated in the opposite direction to move the first threaded sleeve 151 and the second threaded sleeve 152 away from each other, and the two locking blocks separate to release the connecting rod 14.

[0026] like Figure 5 and Figure 6 As shown, the guiding mechanism 13 includes a guide plate 131, which is fixedly connected to the mounting base 7. A through guide groove 135 is provided on the side of the guide plate 131 facing the clamping mechanism 15. Both the guide block 19 and the guide groove 135 have T-shaped cross-sections, allowing the guide block 19 to slide reciprocally within the guide groove 135. The guiding mechanism 13 restricts the rotation of the first locking block 153 and the second locking block 154, ensuring that when the locking screw 91 rotates, the first locking block 153 and the second locking block 154 do not rotate with the locking screw 91, and both remain in a vertical position, facilitating the installation of the cutting machine body 3.

[0027] The upper surface of the guide plate 131 has grooves 133 at both ends. A vertical column 132 slides within the grooves 133, and a horizontal column 134 is fixedly mounted at the bottom of the vertical column 132. An elastic reset member is fixedly mounted at the inner end of the horizontal column 134. In this embodiment, the elastic reset member is a first spring 139. A horizontal groove 138 is formed in the guide plate 131 to accommodate the first spring 139 and the horizontal column 134. Limiting grooves 137 are formed on both sides of the horizontal groove 138. Limiting blocks 136 are fixedly mounted at corresponding positions on both sides of the horizontal column 134. The cross-section of the limiting blocks 136 is adapted to the limiting grooves 137, and they can slide back and forth within the limiting grooves 137 to guide the sliding of the horizontal column 134 and prevent the horizontal column 134 from deflecting and jamming during sliding. When the first spring 139 naturally extends, the outer end of the horizontal column 134 extends into the guide groove 135, restricting the sliding of the guide block 19 and preventing the guide block 19 from coming out of the guide groove 135.

[0028] When the first locking block 153 and the second locking block 154 move in opposite directions, they drive their respective wedge blocks 18 and guide blocks 19 to move outward. When the inclined surface of the wedge block 18 contacts the vertical column 132, as the wedge block 18 continues to move, the inclined surface of the wedge block 18 continuously presses the vertical column 132, causing the vertical column 132 to move along the slide groove 133 and compress the first spring 139. The horizontal column 134 retracts from the guide groove 135 and no longer obstructs the guide block 19, allowing the guide block 19 to slide out from the outer end of the guide groove 135. At this time, the locking mechanism 9 can be removed from the locking plate 10 and the support plate 11. The second threaded sleeve 152 is rotated to disengage from one end of the locking screw 91 with splines 93, and then the first threaded sleeve 151 is rotated to disengage from one end of the locking screw 91 with splines 93, allowing a new clamping mechanism 15 to be replaced.

[0029] The bottom of the mounting base 7 is provided with a push-pull mechanism 8, such as... Figure 7 As shown, the push-pull mechanism 8 includes a vertical push-pull plate 81 and a horizontal push-pull plate 82. The vertical push-pull plate 81 is fixedly connected to the mounting base 7. The vertical push-pull plate 81 is a vertical U-shaped groove, and sliding grooves 87 are provided on both sides of the inner wall of the U-shaped groove. One end of the horizontal push-pull plate 82 is slidably connected to the vertical push-pull plate 81 through the sliding groove 87, and a roller 88 is rotatably provided at the bottom of the other end of the horizontal push-pull plate 82. A first inclined rod 84 and a second inclined rod 85 are fixedly provided on the horizontal push-pull plate 82. A mounting block 83 is hinged to the top of the first inclined rod 84. Two clamps 12 are fixedly provided on the mounting block 83, and the cutting nozzle of the cutting machine body 3 is fixed to the mounting block 83 by means of the clamps 12.

[0030] The bottom end of the second inclined rod 85 is fixedly connected to the push-pull horizontal plate 82, and the top end is fixedly provided with a sliding block 86, which is slidably disposed in the sliding groove 87. The push-pull vertical plate 81, the push-pull horizontal plate 82, and the second inclined rod 85 form a triangle, allowing the push-pull horizontal plate 82 to slide stably up and down. The top end of the elastic element is fixedly connected to the top end of the push-pull vertical plate 81, and the bottom end is fixedly connected to the second inclined rod 85. In this embodiment, the elastic element is a second spring 89. When the second spring 89 naturally extends, it pushes the push-pull horizontal plate 82 to slide downward, and the push-pull horizontal plate 82 drives the first inclined rod 84 to move downward. The downward-moving first inclined rod 84 drives the mounting block 83 to rotate clockwise, and the mounting block 83 drives the cutting machine body 3 on it to rotate clockwise. Figure 8 As shown. At this time, the bottom surface of roller 88 is lower than the bottom surface of push-pull vertical plate 81, and the cutting nozzle of the cutting machine body 3 is in a lower position, ensuring that the cutting nozzle can cut the surface of the workpiece that is concave downward.

[0031] When the workpiece surface bulges upward, the bulging part lifts the roller 88, which in turn drives the push-pull horizontal plate 82 to slide upward. The push-pull horizontal plate 82 then moves the first inclined rod 84 upward. The upward movement of the first inclined rod 84 causes the mounting block 83 to rotate counterclockwise, which in turn causes the cutting machine body 3 on it to rotate counterclockwise. Figure 9 As shown. The cutting nozzle of the cutting machine body 3 rotates upward to a higher position to ensure that the cutting nozzle can cut the upward-protruding surface of the workpiece. Through the above-mentioned action of the push-pull mechanism 8, the distance between the cutting nozzle of the cutting machine body 3 mounted on the mounting block 83 and the workpiece surface is always kept within the range of 3mm to 5mm.

[0032] Preferably, both the first motor and the second motor 6 are stepless adjustable motors, which can steplessly adjust the walking speed of the magnetic trolley body 1 and the moving speed of the mounting base 7. The cutting machine body 3 moves synchronously with the mounting base 7, so the moving speed of the cutting machine body 3 can also be steplessly adjusted to adapt to different cutting process requirements.

[0033] The cutting method of the fully automated magnetic trolley cutting device for cutting sinusoidal waveform curves provided by this invention operates as follows when performing sinusoidal waveform curve cutting operations: First, select the appropriate cutting nozzle model based on the thickness of the workpiece to be cut. Slowly tighten the nozzle onto the cutting machine body 3 and set the gas pressure according to the nozzle cutting specification table. Complete the gas pipeline connection between the oxygen and acetylene cylinders. Adjust the output of the oxygen pressure regulator to 0.3MPa to 0.8MPa, and the output of the acetylene pressure regulator and flashback arrestor to 0.04MPa to 0.1MPa. Connect the oxygen and acetylene lines to the oxygen and acetylene connectors on the cutting machine body 3 respectively, and perform leak checks to ensure there are no leaks at any connection. Simultaneously, complete the electrical connections by connecting the control box power supply to the AC power supply and connecting the control box to the control line of the cutting machine body 3.

[0034] Then, the magnetic carriage body 1 is placed at the starting cutting position of the workpiece to be cut, so that the head of the magnetic carriage body 1 is located at the center point of the line connecting the highest and lowest points of the sine waveform curve to be cut, and a clear sine waveform cutting curve is drawn on the workpiece to be cut.

[0035] Turn on the switches of the first motor and the second motor 6, and adjust the speeds of the first motor and the second motor 6 respectively, so that the traveling speed of the magnetic trolley body 1 matches the reciprocating speed of the cutting machine body 3 driven by the transverse adjustment component. Drive the machine head to travel along the drawn sine wave cutting curve for half a waveform cycle, confirm that the speed match is consistent with the drawing of the cutting curve, and that the operation is smooth and without jamming, and then stop.

[0036] Move the magnetic trolley body 1 to the pre-cutting position, turn on a small amount of oxygen and then turn on the acetylene, adjust to the appropriate flow rate, press the ignition switch to ignite the mixture and adjust the flame to a neutral flame, gently turn on the cutting oxygen to confirm that the air line is straight and without branching, and complete the ignition and flame adjustment.

[0037] The cutting oxygen is turned on to preheat the nozzle until the workpiece turns bright red. After cutting through the workpiece, the switches of the first motor and the second motor 6 are immediately turned on, and the cutting is carried out at a constant speed. During the cutting process, the rollers 88 of the push-pull mechanism 8 roll along the surface of the workpiece, and drive the push-pull horizontal plate 82 to slide up and down according to the undulations of the workpiece surface. The push-pull horizontal plate 82 drives the mounting block 83 to swing through the first inclined rod 84, thereby driving the nozzle of the cutting machine body 3 to swing, so that the distance between the nozzle and the workpiece surface is always maintained within the range of 3mm to 5mm. At the same time, the operator observes whether the movement trajectory of the nozzle coincides with the drawn cutting curve, and adjusts the moving speed of the cutting machine body 3 as needed.

[0038] After cutting is completed, first stop the movement of the magnetic carriage body 1 and the cutting machine body 3, turn off the cutting oxygen, then turn off the acetylene and oxygen, move the magnetic carriage body 1 to a safe place, turn off the power and disconnect the electrical connection, close the gas cylinder valve and loosen the pressure regulator, clean the cutting nozzle and machine body, and complete the operation.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A fully automated cutting method for sinusoidal waveform curves using a magnetic trolley, characterized in that, Includes the following steps: S1: Set the cutting machine body (3) on the magnetic trolley body (1) and place the magnetic trolley body (1) at the starting cutting position of the workpiece to be cut; S2: Select the appropriate cutting nozzle based on the thickness of the workpiece to be cut, and complete the gas pipeline connection and flame adjustment: S3: Start the magnetic trolley body (1) to move along the surface of the workpiece to be cut, and at the same time start the transverse adjustment component to drive the cutting machine body (3) to move back and forth along the direction perpendicular to the direction of travel, so that the cutting nozzle of the cutting machine body (3) moves according to the preset sine wave curve trajectory. S4: During the movement of the magnetic trolley body (1), the push-pull mechanism (8) detects the undulation changes of the surface of the workpiece to be cut, and drives the cutting machine body (3) to swing according to the undulation changes, so as to adjust the distance between the cutting nozzle and the surface of the workpiece to be cut. S5: After the cutting is completed, the cutting machine body (3) is turned off and the movement of the magnetic trolley body (1) and the transverse adjustment component is stopped.

2. A fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley, used to implement the fully automated cutting method for cutting sinusoidal waveform curves using a magnetic trolley as described in claim 1, characterized in that, include: The magnetic car body (1) is provided with a first driving component for driving its movement; The cutting machine body (3) is used to perform cutting operations; A lateral adjustment assembly is provided on the magnetic trolley body (1); the lateral adjustment assembly includes a lateral lead screw (20) and a power source for driving the lateral lead screw (20) to rotate; The mounting base (7) is movably mounted on the transverse adjustment assembly and slides back and forth along the direction perpendicular to the travel direction of the magnetic trolley body (1) under the drive of the transverse adjustment assembly; A locking mechanism (9) is provided on the mounting base (7) for clamping and fixing the cutting machine body (3). A push-pull mechanism (8), mounted on the mounting base (7), is used to drive the cutting machine body (3) to swing according to the surface undulations of the workpiece to be cut, so as to adjust the distance between the cutting nozzle of the cutting machine body (3) and the surface of the workpiece to be cut; the push-pull mechanism (8) includes: A push-pull vertical plate (81) is fixed on the mounting base (7), and a sliding groove (87) is provided on the push-pull vertical plate (81). The horizontal push-pull plate (82) is slidably connected to the vertical push-pull plate (81); The second diagonal bar (85) is fixedly connected at one end to the push-pull horizontal plate (82) and slidably connected at the other end to the push-pull vertical plate (81); An elastic element, whose two ends are fixedly connected to the push-pull vertical plate (81) and the second diagonal bar (85) respectively, is used to provide an elastic force that drives the push-pull horizontal plate (82) to slide downward; The first diagonal bar (84) is fixedly connected at one end to the push-pull horizontal plate (82); The mounting block (83) is hinged to the other end of the first inclined rod (84), and the cutting nozzle of the cutting machine body (3) is fixed on the mounting block (83).

3. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 2, characterized in that, The bottom of the push-pull horizontal plate (82) is provided with a roller (88) for rolling contact with the surface of the workpiece to be cut; the roller (88) drives the push-pull horizontal plate (82) to slide with the undulation of the workpiece surface, and drives the mounting block (83) to swing through the first inclined rod (84).

4. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 3, characterized in that, The elastic element is a second spring (89). The two ends of the second spring (89) are fixedly connected to the top of the push-pull vertical plate (81) and the second diagonal rod (85) respectively. When the second spring (89) naturally extends, it drives the push-pull horizontal plate (82) to slide downward.

5. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 2, characterized in that, The locking mechanism (9) includes: The locking screw (91) is rotatably mounted on the mounting base (7); The fixing frame (96) is detachably connected to the mounting base (7), and one end of the locking screw (91) is rotatably connected to the fixing frame (96); Two clamping assemblies are arranged opposite to each other. Each clamping assembly includes a threaded sleeve threaded onto the locking screw (91) and a locking block fixed on the threaded sleeve. The internal threads of the two threaded sleeves are in opposite directions. When the locking screw (91) rotates, the two clamping assemblies move closer or further apart to clamp or release the cutting machine body (3).

6. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 5, characterized in that, The mounting base (7) is provided with a bearing (16), and the inner ring of the bearing (16) is provided with a spline groove (17). One end of the locking screw (91) is provided with a spline (93) that is adapted to the spline groove (17). The spline (93) is inserted into the spline groove (17). The locking screw (91) is rotatably supported on the mounting base (7) through the bearing (16).

7. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 5, characterized in that, The two locking blocks are a first locking block (153) and a second locking block (154), and the two threaded sleeves are a first threaded sleeve (151) and a second threaded sleeve (152). The first threaded sleeve (151) is fixedly provided with the first locking block (153), the first locking block (153) extends towards the second locking block (154) to form a first locking block (155), and the first locking block (153) is provided with a first locking groove (156). The second threaded sleeve (152) is fixedly provided with the second locking block (154), and the second locking block (154) extends towards the first locking block (153) to form a second locking block (157), and the second locking block (154) is provided with a second locking groove (158). When the two locking blocks approach each other, the first locking block (155) is embedded in the second locking groove (158), and the second locking block (157) is embedded in the first locking groove (156), and the two locking blocks enclose a clamping space.

8. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 5, characterized in that, It also includes a guide mechanism (13) disposed on the mounting base (7), and the clamping assembly is provided with a guide block (19) that cooperates with the guide mechanism (13). The guide mechanism (13) is used to restrict the clamping assembly from rotating with the locking screw (91).

9. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 8, characterized in that, The guiding mechanism (13) includes: A guide plate (131) is fixedly mounted on the mounting base (7). A guide groove (135) is provided on the guide plate (131), and the guide block (19) is slidably disposed in the guide groove (135). A vertical column (132) is slidably mounted on the guide plate (131), and a horizontal column (134) is fixedly mounted on the vertical column (132). One end of the horizontal column (134) extends into the guide groove (135) to restrict the sliding of the guide block (19). An elastic reset member, connected to the cross post (134), is used to provide an elastic force that drives the cross post (134) into the guide groove (135).

10. The fully automated cutting device for cutting sinusoidal waveform curves using a magnetic trolley according to claim 9, characterized in that, The clamping assembly is provided with a wedge block (18). When the wedge block (18) moves with the clamping assembly, the inclined surface of the wedge block (18) abuts against the vertical column (132) to drive the vertical column (132) to slide and drive the horizontal column (134) to exit from the guide groove (135).

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