A heavy-duty steel plasma cutting machine

Abstract

The present invention relates to the technical field of heavy steel processing, in particular to a plasma cutting machine for heavy steel, including: a main body component, including a bracket and a driving unit; an adjusting component arranged at the end of the main body component, including a mounting shell and a cutting component arranged at the end of the bracket, and a bracket adjusting structure is arranged on the inner wall of the mounting shell. In the present invention, the driving unit drives the whole device to move on the surface of heavy steel through a crawler belt cooperating with an electromagnet to prevent falling, improving the flexibility of the device in use. And through the adjusting component, it can be adjusted according to the surface of heavy steel, so as to adjust the angles of the first connecting rod and the second connecting rod, and make the front and rear driving units fit the special-shaped surface of heavy steel, and adjust the posture of the bracket and the height of the cutting component on the premise of ensuring stability, so that the cutting component always maintains a distance from the surface of heavy steel.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy steel processing, and particularly to a heavy steel plasma cutting machine. Background Art

[0002] In modern large-scale steel structure factories, heavy steel, as the core material in industries such as construction, equipment, and ships, its cutting and blanking is a key manufacturing process in the production chain. As an important cutting method, thermal cutting has experienced significant development from manual acetylene gas cutting to today's numerically controlled plasma cutting machines. The numerically controlled plasma cutting machine, as a mechatronic device integrating numerical control technology, plasma cutting technology, and power supply technology, has been widely used in steel structure manufacturing due to its efficient and precise cutting characteristics.

[0003] Due to the large volume of heavy steel, the cutting platforms of ordinary plasma cutting machines often cannot accommodate it, restricting their application scope. Although gantry cutting machines solve the problem of cutting large workpieces to a certain extent, their structure is relatively fixed and lacks flexibility, making it difficult to adapt to the complex and variable cutting requirements of heavy steel. Especially for heavy steel with irregular shapes or requiring multi-angle cutting, gantry cutting machines often cannot fit the surface of the workpiece, resulting in a decline in cutting quality.

[0004] Chinese patent application with publication number CN115846835A discloses a plasma cutting machine for bridge steel, including a support component and a second cutting mechanism. There is a feeding and discharging component assembled by bolts on the top side of the support component, a first cutting mechanism assembled by bolts is arranged above the outer side of the support component, and a second cutting mechanism is arranged on the top side of the first cutting mechanism. The device of this invention mainly uses the power output of the second motor to drive the pulley group connected to the output end of the second motor to operate, so that the pulley group drives multiple groups of parallelly distributed rotating shafts and rotating rollers to run in the same direction, and the rotating rollers drive the steel to move to a suitable position. Through the first cutting mechanism and the two second cutting mechanisms arranged above the first cutting mechanism, since there are three plasma nozzles, and the plasma nozzles arranged on the two second cutting mechanisms can adjust the direction in multiple directions, the bridge steel can be efficiently cut, and the equipment will not be damaged while achieving efficient processing.

[0005] However, this patent still has some technical problems: After the bridge steel is moved by the pulley group and then cut by three plasma nozzles, when the size of the steel exceeds the weight that the pulley group can bear or the volume that can be transported, the steel cannot be transported. At the same time, the plasma nozzles in this solution can only perform cutting work after the pulley group moves the steel below. Summary of the Invention

[0006] In view of the problems existing in the above-mentioned prior art, the present invention is proposed.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A plasma cutting machine for heavy steel, which includes: a main body assembly, including a bracket and a driving unit;

[0008] An adjusting assembly provided at the end of the main body assembly, including a mounting shell provided at the end of the bracket and a cutting component. A bracket adjusting structure is provided on the inner wall of the mounting shell. When the driving unit needs to change the fitting surface during the movement on the outer wall of the heavy steel, the bracket adjusting structure adjusts the bracket to change the horizontal state of the bracket, driving the driving unit to change the fitting surface;

[0009] The driving unit is located at the end of the bracket and is used to drive the cutting machine device to move on the outer wall of the heavy steel. The brackets are located on both sides of the mounting shell. The state of the brackets on the outer wall of the mounting shell is adjusted through the bracket adjusting structure. While the horizontal state of the brackets changes, the cutting component is driven to adjust the distance from the heavy steel below on the inner wall of the mounting shell to ensure the cutting effect.

[0010] As a preferred solution of the plasma cutting machine for heavy steel of the present invention, wherein: the bracket adjusting structure includes a servo motor located inside the mounting shell. A driving box is provided at the axis of the servo motor, and a driving shaft extends from the inside of the driving box to the outer wall of the mounting shell. The servo motor drives the driving shaft to rotate on the outer wall of the mounting shell through the driving box. A first bevel gear is sleeved on the outer wall of the driving shaft. The first bevel gear is close to the driving box. A first gear is fixed at the end of the driving shaft extending to the outer wall of the mounting shell, and the first gear rotates with the driving shaft.

[0011] As a preferred solution of the plasma cutting machine for heavy steel of the present invention, wherein: a first sleeve is sleeved on the outer wall of the driving shaft. A second gear is provided at the end of the first sleeve, and the second gear is in contact with the first gear. A second sleeve is also sleeved on the outer wall of the driving shaft, and the second sleeve is in contact with the first sleeve. A block is provided on the outer wall of the second sleeve, and the end of the block extends into the inner wall of the notch opened on the outer wall of the first sleeve.

[0012] As a preferred solution of the plasma cutting machine for heavy steel of the present invention, wherein: a second bevel gear is provided at the other end of the second sleeve, and a first elastic member is provided on the outer wall of the second bevel gear. The first elastic member is sleeved on the outer wall of the driving shaft and is in contact with the first bevel gear at the end away from the second bevel gear. The first elastic member pushes the second bevel gear to move the block towards the inner wall of the notch.

[0013] As a preferred embodiment of the heavy steel plasma cutting machine of the present invention, the following is provided: A drive housing is sleeved on the outer wall of the first sleeve, and the drive housing is installed on the inner wall of the mounting housing. A drive motor is provided on the inner wall of the drive housing, a drive gear is provided at the axis of the drive motor, an auxiliary gear is also provided on the inner wall of the drive housing, the drive gear and the auxiliary gear limit a drive ring installed on the inner wall of the drive housing, and a third gear is provided on the outer wall of the drive ring. The third gear meshes with the drive gear, and the drive motor drives the drive ring to rotate on the inner wall of the drive housing through the drive gear.

[0014] As a preferred embodiment of the heavy steel plasma cutting machine of the present invention, the following is provided: A spiral ring is provided on the outer wall of the drive ring, and a moving block is provided on the outer wall of the spiral ring. When the drive ring rotates, the moving block provided on the outer wall of the spiral ring moves on the outer wall of the drive ring. One end of the moving block is hinged to a connecting rod, and the other end of the connecting rod is hinged to a circular ring. The outer wall of the circular ring fits on the fixed ring provided on the outer wall of the second sleeve. The moving block pushes the circular ring to drive the second bevel gear at the end of the second sleeve to approach the first bevel gear.

[0015] As a preferred embodiment of the heavy steel plasma cutting machine of the present invention, the following is provided: A third bevel gear is also provided on the inner wall of the mounting housing. The third bevel gear is located at the end of the drive shaft and meshes with the first bevel gear. A worm is provided at the end of the third bevel gear, and the worm meshes with a turbine provided on the inner wall of the mounting housing. A fourth gear is provided at the axis of the turbine, and the fourth gear is located on the outer wall of the mounting housing and meshes with a rack provided at the end of the cutting component to drive the cutting component to lift on the outer wall of the mounting housing.

[0016] As a preferred embodiment of the heavy steel plasma cutting machine of the present invention, the following is provided: A slider is provided on the outer wall of the cutting component. The end of the slider extends into the inner wall of a chute opened on the outer wall of the mounting housing. A cutting head is also provided on the outer wall of the cutting component.

[0017] As a preferred embodiment of the heavy steel plasma cutting machine of the present invention, the following is provided: The bracket includes a first connecting rod, the first connecting rod is connected to the outer wall of the mounting housing, a first arc plate is provided at the end of the first connecting rod, and a first tooth groove is provided on the inner wall of the first arc plate. The first tooth groove meshes with the first gear. The bracket further includes a second connecting rod, a second arc plate is provided at the end of the second connecting rod, a second tooth groove is provided on the inner wall of the second arc plate, and the second tooth groove meshes with the second gear.

[0018] As a preferred embodiment of the heavy steel plasma cutting machine of the present invention, the following is provided: The drive unit includes a bottom plate, a stepping motor is provided at the end of the bottom plate, a stepping gear is provided at the axis of the stepping motor, a crawler is sleeved on the outer wall of the stepping gear, and an electromagnet is installed at the end of the crawler.

[0019] Advantages of the present invention: In the present invention, the driving unit drives the entire device to move on the surface of heavy steel through a crawler in cooperation with an electromagnet to prevent falling, improving the flexibility of the device. And through the adjustment component, it can be adjusted according to the surface of the heavy steel, so as to adjust the angles of the first connecting rod and the second connecting rod, making the front and rear driving units fit the special-shaped surface of the heavy steel, and adjusting the posture of the bracket and the height of the cutting component on the premise of ensuring stability, so that the cutting component always maintains a distance from the surface of the heavy steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of a plasma cutting machine for heavy steel of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the crawler in the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the adjustment component in the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the cutting component in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the first arc plate and the second arc plate in the present invention;

[0026] Figure 6 It is a schematic diagram of the internal structure of the installation shell in the present invention;

[0027] Figure 7 It is Figure 6 a schematic enlarged view of the structure at A in;

[0028] Figure 8 It is a schematic diagram of the positional relationship between the first gear and the second gear in the present invention;

[0029] Figure 9 It is a schematic diagram of the positional relationship of the driving ring in the present invention;

[0030] Figure 10 It is an exploded view of the bracket adjustment structure in the present invention.

[0031] Reference numerals: 100, main body assembly; 101, bracket; 1011, first connecting rod; 1012, first arc plate; 1013, first tooth groove; 1014, second connecting rod; 1015, second arc plate; 1016, second tooth groove; 102, drive unit; 1021, bottom plate; 1022, stepper motor; 1023, stepper gear; 1024, crawler; 1025, electromagnet;

[0032] 200, adjustment assembly; 201, mounting shell; 2011, chute; 202, cutting component; 2021, slider; 2022, rack; 2023, cutting head; 203, servo motor; 2031, drive box; 2032, drive shaft; 2033, first bevel gear; 2034, first gear; 204, third bevel gear; 2041, worm; 2042, turbine; 2043, fourth gear; 205, drive shell; 2051, drive motor; 2052, drive gear; 2053, auxiliary gear; 206, drive ring; 2061, third gear; 2062, spiral ring; 2063, moving block; 2064, connecting rod; 2065, ring; 207, first sleeve; 2071, second gear; 2072, notch; 2073, second sleeve; 2074, clamping block; 2075, second bevel gear; 2076, first elastic member; 2077, fixing ring. Detailed implementation manners

[0033] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0034] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0036] Embodiment 1

[0037] This is the first embodiment of the present invention, and this embodiment provides a heavy-duty steel plasma cutting machine.

[0038] Specifically, referring to Figures 1 to 3 , the main body assembly 100 includes a bracket 101 and a drive unit 102;

[0039] The adjustment assembly 200 provided at the end of the main body assembly 100 includes a mounting shell 201 and a cutting member 202 provided at the end of the bracket 101. A bracket adjustment structure is provided on the inner wall of the mounting shell 201. When the driving unit 102 needs to change the fitting surface during movement on the outer wall of heavy steel, the bracket adjustment structure adjusts the bracket 101 to change the horizontal state of the bracket 101 and drive the driving unit 102 to change the fitting surface;

[0040] The driving unit 102 is located at the end of the bracket 101 and is used to drive the cutting machine device to move on the outer wall of heavy steel. The brackets 101 are located on both sides of the mounting shell 201. The state of the bracket 101 on the outer wall of the mounting shell 201 is adjusted through the bracket adjustment structure. When the horizontal state of the bracket 101 changes, the cutting member 202 is driven to adjust the height from the heavy steel below on the inner wall of the mounting shell 201 to ensure the cutting effect.

[0041] Among them, as Figure 1 shown, the driving unit 102 is divided into four and is located below the bracket 101 and is movably connected to the bottom end of the bracket 101. The driving unit 102 moves on the surface of the heavy steel, thereby driving the overall device to move. At the same time, the mounting shell 201 is installed on the surface of the bracket 101, and the front and rear sections of the bracket 101 are connected into a whole through the mounting shell 201. The cutting member 202 is in the middle of the mounting shell 201, and the mounting shells 201 on both sides are connected into one body through a protective rod.

[0042] When the driving unit 102 drives the bracket 101 to move, the cutting member 202 starts to cut the heavy steel below. When the driving unit 102 needs to fit the next surface on the moving path on the surface of the heavy steel, the bracket 101 is driven to move below the mounting shell 201 through the bracket adjustment mechanism to adjust the angle and change the horizontal state of the bracket 101. At the same time, the cutting member 202 in the middle of the mounting shell 201 selects to rise and fall according to the surface of the heavy steel to maintain the height from the steel surface being cut below and ensure the cutting effect.

[0043] Embodiment 2

[0044] This is the second embodiment of the present invention, and this embodiment is implemented based on the previous embodiment.

[0045] Specifically, referring to Figure 6 、 Figure 7The bracket adjustment structure includes a servo motor 203 located inside the mounting shell 201, a drive box 2031 is arranged at the axis center of the servo motor 203, and a drive shaft 2032 is arranged inside the drive box 2031 and extends to the outer wall of the mounting shell 201. The servo motor 203 drives the drive shaft 2032 to rotate on the outer wall of the mounting shell 201 through the drive box 2031, and a first bevel gear 2033 is sleeved on the outer wall of the drive shaft 2032. The first bevel gear 2033 is close to the drive box 2031, and the drive shaft 2032 extends to the end of the outer wall of the mounting shell 201 and a first gear 2034 is fixed thereto, and the first gear 2034 rotates with the drive shaft 2032.

[0046] Among them, the servo motor 203 is installed below the mounting shell 201, and the driving shaft 2032 is not directly connected to the servo motor 203. The driving shaft 2032 is driven to rotate inside the mounting shell 201 through the driving box 2031. The first bevel gear 2033 and the first gear 2034 installed on the surface of the driving shaft 2032 are respectively installed at the two ends of the driving shaft 2032.

[0047] Preferably, refer to Figure 9 , Figure 10 The outer wall of the driving shaft 2032 is sleeved with a first sleeve 207, the end of the first sleeve 207 is provided with a second gear 2071 and the second gear 2071 is fitted with the first gear 2034, the outer wall of the driving shaft 2032 is also sleeved with a second sleeve 2073 and the second sleeve 2073 is fitted with the first sleeve 207, the outer wall of the second sleeve 2073 is provided with a block 2074 and the end of the block 2074 extends to the inner wall of the recess 2072 opened on the outer wall of the first sleeve 207.

[0048] Among them, the first sleeve 207 and the second sleeve 2073 are both outside the driving shaft 2032, the block 2074 at the end of the second sleeve 2073 is engaged with the inside of the recess 2072 at the end of the first sleeve 207, the first sleeve 207 and the second sleeve 2073 rotate synchronously, and the second gear 2071 at the end of the first sleeve 207 is in contact with the first gear 2034 at the end of the driving shaft 2032.

[0049] Reference Figure 8 , Figure 10 A second bevel gear 2075 is provided at the other end of the second sleeve 2073 and a first elastic member 2076 is provided on the outer wall of the second bevel gear 2075. The first elastic member 2076 is sleeved on the outer wall of the driving shaft 2032 and the other end away from the second bevel gear 2075 is in contact with the first bevel gear 2033. The first elastic member 2076 pushes the second bevel gear 2075 to move the block 2074 toward the inner wall of the recess 2072.

[0050] Among them, the first elastic member 2076 is sleeved outside the drive shaft 2032 and located between the first bevel gear 2033 and the second bevel gear 2075. Since the first bevel gear 2033 is fixed on the outer surface of the drive shaft 2032, at this time, the first elastic member 2076 pushes the second bevel gear 2075 in the direction of the second gear 2071, pushes the second sleeve 2073 towards the first sleeve 207, and the latch 2074 moves into the notch 2072.

[0051] A drive housing 205 is sleeved on the outer wall of the first sleeve 207, and the drive housing 205 is installed on the inner wall of the mounting housing 201. A drive motor 2051 is provided on the inner wall of the drive housing 205. A drive gear 2052 is provided at the axis of the drive motor 2051. An auxiliary gear 2053 is also provided on the inner wall of the drive housing 205. The drive gear 2052 and the auxiliary gear 2053 limit the drive ring 206 installed on the inner wall of the drive housing 205, and a third gear 2061 is provided on the outer wall of the drive ring 206. The third gear 2061 meshes with the drive gear 2052, and the drive motor 2051 drives the drive ring 206 to rotate on the inner wall of the drive housing 205 through the drive gear 2052.

[0052] Among them, the drive housing 205 is fixed inside the mounting housing 201 and sleeved outside the first sleeve 207 to support the drive shaft 2032 and the first sleeve 207. The auxiliary gears 2053 are arrayed inside the accommodating cavity inside the drive housing 205 and cooperate with the drive gear 2052. The drive gear 2052 is driven by the drive motor 2051 to drive the drive ring 206 to rotate inside the drive housing 205. While the auxiliary gears 2053 assist the rotation of the drive ring 206, they limit the drive ring 206.

[0053] Refer to Figure 9 、 Figure 10 As shown in, a spiral ring 2062 is provided on the outer wall of the drive ring 206, and a moving block 2063 is provided on the outer wall of the spiral ring 2062. When the drive ring 206 rotates, the moving block 2063 provided on the outer wall of the spiral ring 2062 moves on the outer wall of the drive ring 206. One end of the moving block 2063 is hinged with a connecting rod 2064, and the other end of the connecting rod 2064 is hinged with a circular ring 2065. The outer wall of the circular ring 2065 is attached to the fixed ring 2077 provided on the outer wall of the second sleeve 2073. The moving block 2063 pushes the circular ring 2065 to drive the second bevel gear 2075 at the end of the second sleeve 2073 to approach the first bevel gear 2033.

[0054] Among them, an opening that fits the spiral ring 2062 is provided at the bottom of the moving block 2063, and a slideway is provided on the surface of the drive housing 205, so that the moving block 2063 moves linearly inside the slideway when the spiral ring 2062 rotates.

[0055] The top of the moving block 2063 is hinged with a connecting rod 2064, and the other end of the connecting rod 2064 is hinged with a circular ring 2065. The circular ring 2065 is sleeved outside the second sleeve 2073 and is in close contact with the fixing ring 2077 on the surface of the second sleeve 2073. Affected by the rotation of the spiral ring 2062, when the two moving blocks 2063 approach each other, the hinged connecting rod 2064 pushes the circular ring 2065 to move, thereby pushing the fixing ring 2077, driving the second bevel gear 2075 at the end of the second sleeve 2073 to move towards the first bevel gear 2033 and squeezing the first elastic member 2076.

[0056] Preferably, referring to Figure 6 and Figure 8 On the inner wall of the mounting shell 201, there is also a third bevel gear 204. The third bevel gear 204 is located at the end of the drive shaft 2032 and meshes with the first bevel gear 2033. At the end of the third bevel gear 204, there is a worm 2041, and the worm 2041 meshes with a turbine 2042 provided on the inner wall of the mounting shell 201. At the center of the turbine 2042, there is a fourth gear 2043, and the fourth gear 2043 is located on the outer wall of the mounting shell 201 and meshes with a rack 2022 provided at the end of the cutting member 202 to drive the cutting member 202 to lift on the outer wall of the mounting shell 201.

[0057] Among them, the third bevel gear 204 is installed inside the mounting shell 201 and is located above the first bevel gear 2033 and meshes with the first bevel gear 2033. In the initial state, the second bevel gear 2075 does not mesh with the third bevel gear 204. When the drive shaft 2032 rotates, the first bevel gear 2033 only drives the third bevel gear 204 to rotate. When the moving block 2063 drives the circular ring 2065 to move, the second sleeve 2073 drives the second bevel gear 2075 to move towards the first bevel gear 2033 and meshes with the third bevel gear 204. At this time, when the first bevel gear 2033 rotates, it drives the second bevel gear 2075 to rotate synchronously through the third bevel gear 204, but the rotation direction is opposite to that of the first bevel gear 2033.

[0058] At the same time, when the third bevel gear 204 above rotates, the worm 2041 at the end rotates synchronously and drives the turbine 2042 on the side of the worm 2041 to rotate. The turbine 2042 is coaxially connected to the fourth gear 2043. When the turbine 2042 is affected and rotates, the fourth gear 2043 rotates together. The difference is that the turbine 2042 is installed on the inner wall of the accommodation cavity of the mounting shell 201 while the fourth gear 2043 is located on the outer wall of the mounting shell 201. The fourth gear 2043 meshes with the rack 2022 at the bottom of the cutting member 202, and the cutting member 202 is lifted on the inner wall of the mounting shell 201 by driving the movement of the rack 2022.

[0059] In summary, during use, due to the installation positions, the drive shaft 2032 is not directly connected to the servo motor 203. The servo motor 203 drives the drive shaft 2032 to rotate inside the mounting housing 201 through the drive box 2031. A first bevel gear 2033 and a first gear 2034 are fixed to the outer wall of the drive shaft 2032. The first bevel gear 2033 is located near the drive box 2031 and inside the accommodating cavity of the mounting housing 201, while the first gear 2034 is outside the mounting housing 201. A third bevel gear 204 is installed inside the mounting housing 201 and meshes with the first bevel gear 2033. When the drive shaft 2032 rotates, the third bevel gear 204 is driven by the first bevel gear 2033 to rotate together. The worm 2041 above rotates with the third bevel gear 204, and the turbine 2042 on the side of the worm 2041 drives the fourth gear 2043 to rotate on the outer wall of the mounting housing 201 due to the rotation of the worm 2041. The cutting member 202 is located inside the mounting housing 201, and the rack 2022 below the cutting member 202 meshes with the fourth gear 2043. Therefore, when the fourth gear 2043 rotates, it drives the rack 2022 to move, thereby controlling the lifting of the cutting member 202 on the inner wall of the mounting housing 201.

[0060] A first sleeve 207 is sleeved outside the drive shaft 2032 and is not affected by the rotation of the drive shaft 2032. The second gear 2071 at the end of the first sleeve 207 is close to the first gear 2034 at the end of the drive shaft 2032. At the same time, the other end of the first sleeve 207, i.e., the second sleeve 2073, is engaged with the notch 2072 at the end of the first sleeve 207 through the block 2074 at its end. Moreover, the distance between the first sleeve 207 and the second sleeve 2073 is also reflected by the distance of the block 2074 within the notch 2072. The second bevel gear 2075 at the other end of the second sleeve 2073 is at a relatively far distance from the first bevel gear 2033 under the influence of the first elastic member 2076 in the initial state. At this time, the second bevel gear 2075 also does not mesh with the third bevel gear 204. When the drive shaft 2032 rotates at this time, the second bevel gear 2075 is not affected. The drive motor 2051 inside the drive housing 205 drives the drive ring 206 to rotate. Through the spiral ring 2062 on the surface of the drive ring 206, the two moving blocks 2063 on the surface approach each other, and then the ring 2065 connected to the moving block 2063 pushes the fixed ring 2077 on the surface of the second sleeve 2073, pushing the second bevel gear 2075 at the end of the second sleeve 2073 towards the first bevel gear 2033. At this time, the first bevel gear 2033 drives the second bevel gear 2075 to rotate through the third bevel gear 204, and then the second gear 2071 at the end of the first sleeve 207 rotates. However, the rotation direction of the second gear 2071 is opposite to that of the first gear 2034.

[0061] Embodiment 3

[0062] This is the third embodiment of the present invention, which is implemented based on the previous embodiment.

[0063] Specifically, referring to Figure 4 , a slider 2021 is provided on the outer wall of the cutting member 202. The end of the slider 2021 extends to the inner wall of the chute 2011 opened on the outer wall of the mounting shell 201. A cutting head 2023 is also provided on the outer wall of the cutting member 202.

[0064] Among them, the slider 2021 is driven by the rack 2022 to slide inside the chute 2011 on the outer wall of the mounting shell 201. The outer wall of the cutting member 202 is attached to the mounting shell 201, and the position is limited by the surface-to-surface fit.

[0065] Preferably, referring to Figures 1 to 3 and Figure 5 , the bracket 101 includes a first connecting rod 1011. The first connecting rod 1011 is connected to the outer wall of the mounting shell 201. A first arc plate 1012 is provided at the end of the first connecting rod 1011, and a first tooth groove 1013 is provided on the inner wall of the first arc plate 1012. The first tooth groove 1013 meshes with the first gear 2034. The bracket 101 further includes a second connecting rod 1014. A second arc plate 1015 is provided at the end of the second connecting rod 1014. A second tooth groove 1016 is provided on the inner wall of the second arc plate 1015, and the second tooth groove 1016 meshes with the second gear 2071.

[0066] Among them, as Figure 5 shown, the first arc plate 1012 and the second arc plate 1015 have the same shape and both have tooth grooves inside. The first arc plate 1012 is attached to the outer wall of the second connecting rod 1014, and the second arc plate 1015 is attached to the inner wall of the first connecting rod 1011. The first arc plate 1012 and the second arc plate 1015 do not touch the lower surfaces of the first connecting rod 1011 and the second connecting rod 1014 during movement, but pass over from the side.

[0067] The first gear 2034 meshes with the first tooth groove 1013, and the second gear 2071 meshes with the second tooth groove 1016. The horizontal states of the first connecting rod 1011 and the second connecting rod 1014 are respectively affected by the movements of the first gear 2034 and the second gear 2071.

[0068] When the drive shaft 2032 rotates, the first arc plate 1012 is driven to move through the engagement of the first gear 2034 and the first tooth groove 1013. Since the end of the first connecting rod 1011 is hinged to the outer wall of the mounting shell 201, the first connecting rod 1011 at this time rotates around the hinge point on the outer wall of the mounting shell 201, and rotates upward or downward on the outer wall of the mounting shell 201 according to the rotation direction of the drive shaft 2032. Similarly, when the second bevel gear 2075 meshes with the third bevel gear 204, the second gear 2071 meshes with the second tooth groove 1016 at this time and drives the second arc plate 1015 to move below the mounting shell 201, thereby driving the second connecting rod 1014 to move. Since the rotation directions of the first gear 2034 and the second gear 2071 are opposite, the first connecting rod 1011 and the second connecting rod 1014 always move towards or away from each other when moving together.

[0069] Preferably, referring to Figure 1 and Figure 2 The drive unit 102 includes a bottom plate 1021. A stepping motor 1022 is provided at the end of the bottom plate 1021. A stepping gear 1023 is provided at the axis of the stepping motor 1022. A crawler 1024 is sleeved on the outer wall of the stepping gear 1023, and an electromagnet 1025 is installed at the end of the crawler 1024.

[0070] Among them, the bottom plate 1021 of the drive unit 102 is movably connected to the bottom end of the bracket 101. An inclination at a certain angle can be made between the bottom end of the bracket 101 and the bottom plate 1021, which is convenient for the drive unit 102 to drive the bracket 101 to move on the surface of heavy steel.

[0071] A stepping motor 1022 is installed below the bottom plate 1021, and each stepping motor 1022 controls the rotation of a stepping gear 1023. A crawler 1024 is sleeved outside the stepping gear 1023. The crawler 1024 is driven by the stepping gear 1023 to move on the surface of heavy steel. On the surface of the crawler 1024, electromagnets 1025 are arrayed. The crawler 1024 is adsorbed on the surface of heavy steel through the magnetic force of the electromagnets 1025 to prevent it from falling while moving.

[0072] In summary, during use, the drive unit 102 is adsorbed on the surface of heavy steel through the electromagnets 1025 on the surface of the crawler 1024, and the crawler 1024 is controlled by the stepping motor 1022 to move on the surface of heavy steel. When the drive unit 102 drives the whole device to move, the cutting component 202 inside the mounting shell 201 starts to cut the heavy steel below through the cutting head 2023. The cutting head 2023 itself has a certain lifting ability and can control the distance between the cutting head 2023 and the heavy steel below within a small range.

[0073] When the heavy steel is a large round pipe, the driving units 102 at both lower ends of the bracket 101 are attached to the surface of the round pipe through the crawlers 1024, and slowly move to complete the cutting work on the round steel.

[0074] When the heavy steel is a special-shaped steel, the driving unit 102 is attached to the surface of the heavy steel through the crawlers 1024 and moves along the surface of the steel. When the mating surfaces of the front and rear driving units 102 are not on the same horizontal plane, assuming that the rising surface of the heavy steel is encountered at this time, which has a certain angle with the original mating surface, with the first connecting rod 1011 as the front end, at this time, the servo motor 203 drives the drive shaft 2032 to rotate. Through the meshing of the first gear 2034 and the first tooth groove 1013, the first connecting rod 1011 is driven to turn upward outside the mounting shell 201. At this time, the second connecting rod 1014 does not move angularly with the driving unit 102 below it. The first connecting rod 1011 turns over and drives the driving unit 102 below it to lift and stick to the rising surface of the heavy steel. At this time, the first connecting rod 1011 and the second connecting rod 1014 change from the original horizontal to a folded state. At the same time, when the first connecting rod 1011 is lifted, the third bevel gear 204 is driven to rotate by the first bevel gear 2033, and the rack 2022 on the outer wall of the mounting shell 201 moves to drive the cutting member 202 to move downward, so that the cutting head 2023 moves downward close to the folding point of the heavy steel for cutting, ensuring the cutting distance between the cutting head 2023 and the heavy steel. After cutting the folding point of the heavy steel, the driving unit 102 at the rear end will gradually enter the rising surface from the mating surface. At this time, the servo motor 203 drives the drive shaft 2032 to reverse, so that the first connecting rod 1011 returns to the horizontal state again, maintains the same state as the second connecting rod 1014, and continues to move on the surface of the heavy steel through the crawlers 1024.

[0075] When the angle between the rising surface of the heavy steel and the fitting surface is nearly perpendicular, at this time, the driving motor 2051 in the driving housing 205 drives the driving gear 2052 to rotate, thereby causing the driving ring 206 to rotate inside the driving housing 205. The spiral ring 2062 on the surface of the driving ring 206 drives the moving block 2063 to move, pushing the second sleeve 2073 to move, so that the second bevel gear 2075 meshes with the third bevel gear 204 for transmission, and the second gear 2071 and the first gear 2034 rotate together. At this time, the first connecting rod 1011 and the second connecting rod 1014 flip synchronously outside the mounting housing 201. The driving unit 102 below the second connecting rod 1014 is fixed on the fitting surface, driving the first connecting rod 1011 and the driving unit 102 below it to quickly fold and fit on the rising surface of the heavy steel. And at this time, the cutting member 202 is also driven downward by the rack 2022, approaching the folding point position of the heavy steel for cutting. After cutting, the first connecting rod 1011 and the second connecting rod 1014 are also reset by the servo motor 203.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A heavy steel plasma cutting machine, characterized by: include: A main body assembly (100) comprises a bracket (101) and a drive unit (102); The adjustment component (200) is arranged at the end of the main component (100), comprising a mounting shell (201) and a cutting component (202) arranged at the end of the bracket (101); the inner wall of the mounting shell (201) is provided with a bracket adjustment structure; when the driving unit (102) moves on the outer wall of the heavy steel material and needs to change the contact surface, the bracket adjustment structure adjusts the bracket (101) to change the horizontal state of the bracket (101), thereby driving the driving unit (102) to change the contact surface; The driving unit (102) is located at the end of the bracket (101) and is used to drive the cutting machine device to move on the outer wall of the heavy steel material. The bracket (101) is located on both sides of the mounting shell (201). The state of the bracket (101) located on the outer wall of the mounting shell (201) is adjusted by the bracket adjustment structure. When the horizontal state of the bracket (101) changes, the cutting component (202) is driven to adjust the distance between the inner wall of the mounting shell (201) and the heavy steel material below. The support adjustment structure comprises a servo motor (203) located inside the mounting shell (201); a drive box (2031) is arranged at the axis of the servo motor (203); a drive shaft (2032) is arranged inside the drive box (2031) and extends to the outer wall of the mounting shell (201); the servo motor (203) drives the drive shaft (2032) to rotate on the outer wall of the mounting shell (201) through the drive box (2031); a first bevel gear (2033) is sleeved on the outer wall of the drive shaft (2032); the first bevel gear (2033) is close to the drive box (2031); a first gear (2034) is fixed to the end of the drive shaft (2032) extending to the outer wall of the mounting shell (201); and the first gear (2034) rotates with the drive shaft (2032); The outer wall of the driving shaft (2032) is sleeved with a first sleeve (207), the end of the first sleeve (207) is provided with a second gear (2071), and the second gear (2071) is fitted with the first gear (2034); the outer wall of the driving shaft (2032) is also sleeved with a second sleeve (2073), and the second sleeve (2073) is fitted with the first sleeve (207); the outer wall of the second sleeve (2073) is provided with a clamping block (2074), and the end of the clamping block (2074) extends to the inner wall of a recess (2072) provided on the outer wall of the first sleeve (207); A second bevel gear (2075) is disposed at the other end of the second sleeve (2073), and a first elastic member (2076) is disposed on the outer wall of the second bevel gear (2075); the first elastic member (2076) is sleeved on the outer wall of the drive shaft (2032), and the other end of the first elastic member (2076) that is away from the second bevel gear (2075) is in contact with the first bevel gear (2033); the first elastic member (2076) pushes the second bevel gear (2075) to move the clamping block (2074) toward the inner wall of the notch (2072); The outer wall of the first sleeve (207) is provided with a drive shell (205), and the drive shell (205) is mounted on the inner wall of the mounting shell (201); the inner wall of the drive shell (205) is provided with a drive motor (2051); a drive gear (2052) is provided at the axis of the drive motor (2051); an auxiliary gear (2053) is also provided on the inner wall of the drive shell (205); the drive gear (2052) and the auxiliary gear (2053) limit the position of a drive ring (206) mounted on the inner wall of the drive shell (205); and a third gear (2061) is provided on the outer wall of the drive ring (206); the third gear (2061) and the drive gear (2052) are meshed with each other; the drive motor (2051) drives the drive ring (206) to rotate on the inner wall of the drive shell (205) via the drive gear (2052); The bracket (101) comprises a first connecting rod (1011), the first connecting rod (1011) being connected to the outer wall of the mounting shell (201), a first arc plate (1012) being provided at the end of the first connecting rod (1011), and a first tooth groove (1013) being provided on the inner wall of the first arc plate (1012), and the first tooth groove (1013) being meshed with a first gear (2034); the bracket (101) further comprises a second connecting rod (1014), a second arc plate (1015) being provided at the end of the second connecting rod (1014), a second tooth groove (1016) being provided on the inner wall of the second arc plate (1015), and the second tooth groove (1016) being meshed with a second gear (2071).

2. The heavy steel plasma cutting machine according to claim 1, characterized in that: The outer wall of the driving ring (206) is provided with a vortex ring (2062) and the outer wall of the vortex ring (2062) is provided with a moving block (2063). When the driving ring (206) rotates, the moving block (2063) provided on the outer wall of the vortex ring (2062) moves on the outer wall of the driving ring (206). A connecting rod (2064) is hinged at the end of the moving block (2063) and a circular ring (2065) is hinged at the other end of the connecting rod (2064). The outer wall of the circular ring (2065) fits the fixing ring (2077) provided on the outer wall of the second sleeve (2073). The moving block (2063) pushes the circular ring (2065) to drive the second bevel gear (2075) at the end of the second sleeve (2073) to approach the first bevel gear (2033).

3. The heavy steel plasma cutting machine according to claim 2, characterized in that: A third bevel gear (204) is also provided on the inner wall of the mounting shell (201); the third bevel gear (204) is located at the end of the drive shaft (2032) and meshes with the first bevel gear (2033); a worm (2041) is provided on the end of the third bevel gear (204) and the worm (2041) meshes with a turbine (2042) provided on the inner wall of the mounting shell (201); a fourth gear (2043) is provided on the axis of the turbine (2042) and the fourth gear (2043) is located on the outer wall of the mounting shell (201) and meshes with a rack (2022) provided at the end of the cutting component (202) to drive the cutting component (202) to rise and fall on the outer wall of the mounting shell (201).

4. The heavy steel plasma cutting machine according to claim 3, characterized in that: The outer wall of the cutting component (202) is provided with a sliding block (2021), the end of the sliding block (2021) extends to the inner wall of a sliding groove (2011) provided on the outer wall of the mounting shell (201), and the outer wall of the cutting component (202) is also provided with a cutting head (2023).

5. The heavy steel plasma cutting machine according to claim 4, characterized in that: The driving unit (102) comprises a bottom plate (1021), a stepping motor (1022) is arranged at the end of the bottom plate (1021), a stepping gear (1023) is arranged at the axis of the stepping motor (1022), a crawler (1024) is sleeved on the outer wall of the stepping gear (1023), and an electromagnet (1025) is installed at the end of the crawler (1024).

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