Stainless steel cutting device

Abstract

The invention belongs to the technical field of stainless steel production and machining, and particularly relates to a stainless steel cutting device which comprises a cutting table, and a cutting knife used for cutting a stainless steel pipe is arranged above the cutting table; the circumferential cutting mechanism is used for driving a cutting knife to conduct circumferential motion so as to automatically achieve cutting work on the stainless steel pipe, the circumferential cutting mechanism comprises a fixing ring arranged above the cutting table, a fixing inner gear ring is fixedly connected to the side wall of the fixing ring, and a rotating outer gear ring is further rotationally connected to the side wall of the fixing ring; a movable gear is connected between the fixed inner gear ring and the rotary outer gear ring in a meshed mode. By arranging the circumferential cutting mechanism, during cutting, a movable gear moves circumferentially along a fixed inner gear ring, a cutting knife is driven to move circumferentially, circumferential cutting of the stainless steel pipe is automatically achieved, a worker does not need to hold the stainless steel pipe to rotate or control the cutting knife to move circumferentially, and operation is convenient and fast.

Description

Technical Field

[0001] The invention belongs to the field of cutting technology, and in particular relates to a stainless steel cutting device. Background Art

[0002] Stainless steel has excellent corrosion resistance, high temperature resistance and good mechanical properties. Among them, tubular products made of stainless steel are stainless steel pipes, which have been widely used in the fields of construction, automobiles and aviation. In the production and processing of stainless steel pipes, it is usually necessary to use a cutting device to cut the stainless steel pipe into a suitable size to meet the needs of installation or manufacturing. For example, a stainless steel cutting device disclosed in China's authorization announcement number CN116408488B can effectively fix the position of the steel pipe to prevent the steel pipe from moving during the cutting process. However, the above-mentioned cutting device still has the following technical problems when cutting stainless steel pipes: Since the stainless steel pipe itself is cylindrical and has a high hardness, it requires greater external force when directly cutting, which easily causes energy waste and uneven cutting surface. Therefore, during the cutting process, the staff needs to hold the stainless steel pipe and rotate it, or manually control the cutting knife to make a circular motion to achieve the cutting of the stainless steel pipe. The operation process is relatively cumbersome and the work efficiency is low; During the cutting process, it is difficult to control the cutting power in real time, which may cause the cutting power to be too high, resulting in excessive heat input, which in turn causes the heat-affected zone to be too large. The high temperature generated during cutting will cause the local temperature of the stainless steel to rise, affecting the microstructure and mechanical properties of the stainless steel pipe. Summary of the invention

[0003] The purpose of the present invention is to address the problems raised in the above-mentioned background technology and to provide a stainless steel cutting device that can enable a mobile gear to move in a circular motion along a fixed inner gear ring, thereby automatically realizing circular cutting of a stainless steel pipe and automatically realizing cooling treatment of the cutting position during the cutting process, thereby avoiding the situation in which the heat affected area is too large due to excessive temperature during the stainless steel cutting process.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A stainless steel cutting device, comprising: A cutting table, wherein a cutting knife for cutting the stainless steel pipe is provided above the cutting table; A circular cutting mechanism is used to drive the cutting knife to perform circular motion so as to automatically realize the cutting of the stainless steel pipe. The circular cutting mechanism includes a fixed ring arranged above the cutting table, a fixed inner gear ring is fixedly connected to the side wall of the fixed ring, a rotating outer gear ring is also rotatably connected to the side wall of the fixed ring, a moving gear is meshedly connected between the fixed inner gear ring and the rotating outer gear ring, a fixed gear meshed with the outer wall of the rotating outer gear ring is rotatably connected to the side wall of the fixed ring, a first motor for driving the fixed gear is fixedly connected to the side wall of the fixed ring away from the rotating outer gear ring, a support rod is rotatably connected to the moving gear, a hydraulic rod is fixedly connected to one end of the support rod away from the moving gear, a U-shaped plate is fixedly connected to the output end of the hydraulic rod, the cutting knife is rotatably connected between the two side walls of the U-shaped plate, and a second motor for driving the cutting knife is fixedly connected to the U-shaped plate; A cooling mechanism is used to automatically cool the cutting position when the cutting knife is cutting to avoid too large a heat-affected area; The regulating mechanism is used to adjust the cooling effect on the cutting position according to the temperature of the cutting knife.

[0005] Preferably, an L-shaped rod is fixedly connected to the support rod, a first annular limiting groove is formed on the side wall of the fixed inner gear ring, and the L-shaped rod is slidably connected to the inner wall of the first annular limiting groove.

[0006] Preferably, the cooling mechanism includes a rotating rod fixedly connected to the moving gear, a moving suction cylinder is provided on the side of the fixed ring away from the moving gear, the inner wall of the moving suction cylinder is slidably connected with a moving block in a horizontal direction, the part of the rotating rod extending into the moving suction cylinder is provided with a reciprocating threaded section, the moving block is threadedly connected to the reciprocating threaded section, a piston block is sealingly and slidingly connected in the moving suction cylinder, the moving block is fixedly connected to the piston block, a side plate is fixedly connected to the cutting table, a liquid storage cylinder is fixedly connected to the side plate, an annular guide frame is sealingly and rotatably connected to the circumferential side wall of the liquid storage cylinder, an infusion tube is connected between the annular guide frame and the inside of the moving suction cylinder, a discharge tube is fixedly connected to the outer wall of the moving suction cylinder, and both the discharge tube and the infusion tube are provided with a one-way valve.

[0007] Preferably, an atomizing nozzle is provided at one end of the liquid discharge pipe away from the movable suction cylinder.

[0008] Preferably, an L-shaped support block is fixedly connected to the outer wall of the movable suction cylinder, a second annular limiting groove is opened on the side wall of the fixed ring, and the L-shaped support block is slidably connected to the inner wall of the second annular limiting groove.

[0009] Preferably, the fixing ring is divided into two parts, an inner ring and an outer ring; a connecting column is fixedly connected between the inner ring and the liquid storage cylinder; and the outer ring is fixedly connected to the upper end of the cutting table.

[0010] Preferably, the adjustment mechanism includes a semicircular fixed column fixedly connected to the inner wall of the movable suction cylinder, a semicircular rotating column is sealingly and rotatably connected inside the semicircular fixed column, the semicircular rotating column extends outside the semicircular fixed column, the interior of the cutting knife is hollow, and a connecting pipe is connected between the interior of the cutting knife and the interior of the semicircular fixed column, and the interior of the cutting knife, the interior of the semicircular fixed column and the interior of the connecting pipe are filled with a thermal expansion and contraction medium.

[0011] Preferably, the cutting table is also provided with a clamping mechanism for synchronously fixing the inner wall and the outer wall of the stainless steel pipe before cutting to avoid deformation of the stainless steel pipe, the clamping mechanism includes a fixed plate fixedly connected to the upper end of the cutting table, the fixed plate is rotatably connected to a central gear, the side wall of the fixed plate is rotatably connected to a knob coaxially fixedly connected to the central gear, the central gear is fixedly connected to a transmission rod, the end of the transmission rod away from the fixed plate is rotatably connected to a clamping block, a plurality of extension rods are fixedly connected between the clamping block and the fixed plate, the transmission rod is provided with a threaded section, the threaded section is threadedly connected to a threaded block, and the clamping block is slidably connected to There are multiple sliders distributed in a circular array, each of the sliders is fixedly connected to an inner clamping plate, each of the sliders is provided with a first hinge seat, the threaded block is fixedly connected to multiple second hinge seats distributed in a circular array, a connecting rod is provided between each of the first hinge seats and the second hinge seats at the corresponding position, the fixed plate is rotatably connected to multiple circumferential side gears distributed in a circular array, the fixed plate is also slidably connected to multiple racks distributed in a circular array, each of the racks is meshed with the circumferential side gears at the corresponding position, each of the racks is fixedly connected to a fixing rod, and each of the fixing rods is fixedly connected to an outer clamping plate at one end away from the rack.

[0012] Preferably, a limiting arc block is fixedly connected to the clamping block, and a limiting arc groove which is slidably connected to the limiting arc block is provided on the threaded block.

[0013] Compared with the existing technology, the advantages of this stainless steel cutting device are: The present invention provides a circular cutting mechanism. During cutting, the fixed gear is driven to rotate by the first motor, thereby driving the rotating outer gear ring to rotate, so that the movable gear can perform a circular motion along the fixed inner gear ring. The circular motion of the movable gear further drives the cutting knife to perform a circular motion through the support rod, the hydraulic rod and the U-shaped plate, thereby automatically realizing the circular cutting of the stainless steel pipe. There is no need for the staff to rotate the stainless steel pipe by hand or control the circular motion of the cutting knife. The operation is convenient and the cutting efficiency of the stainless steel pipe is improved.

[0014] The present invention provides a cooling mechanism. During the cutting process, the moving gear rotates itself during the circular motion, thereby driving the piston block to perform reciprocating horizontal displacement inside the moving suction cylinder, forming a structure similar to a suction pump, thereby continuously pumping cooling water in the liquid storage cylinder to the cutting position, and automatically cooling the cutting position during the cutting process, thereby avoiding the situation in which the heat affected zone is too large due to excessive temperature during the stainless steel cutting process, ensuring the microstructure and mechanical properties of the stainless steel pipe, and at the same time, there is no need to provide an additional driving source, thereby reducing the processing cost.

[0015] The present invention provides an adjustment mechanism. In the process of cooling the cutting position, the amount of cooling water pumped out during suction can be adjusted by the temperature of the cutting blade itself, thereby adjusting the cooling effect on the cutting position. When the temperature increase of the cutting blade itself is relatively large, the space in the movable suction cylinder is relatively large, and the piston block sucks relatively more cooling water when reciprocating, thereby improving the cooling effect on the cutting position. When the temperature increase of the cutting blade itself is relatively small, the space in the movable suction cylinder is relatively small, and the piston block sucks relatively less cooling water when reciprocating, thereby reducing the cooling effect on the cutting position, so that the cooling intensity of the cutting position changes with the temperature, avoids excessively high or low cooling effect, keeps the cooling effect within a more suitable range, improves cutting efficiency and extends tool life.

[0016] The present invention provides a clamping mechanism. Before cutting, the central gear is driven to rotate by a knob, which drives the transmission rod to rotate, so that the multiple inner clamping plates move away from each other and abut against the inner wall of the stainless steel pipe. At the same time, the rotation of the central gear will also drive the multiple outer clamping plates to move closer to each other and abut against the outer wall of the stainless steel pipe, thereby realizing synchronous clamping and fixing of the inner and outer walls of the stainless steel pipe, improving the stability of the stainless steel pipe during cutting, and preventing the stainless steel pipe from being deformed inward due to the effect of shear stress during cutting, thereby improving the cutting effect of the stainless steel pipe. In addition, when the thickness of the stainless steel pipe changes, the multiple outer clamping plates are closer to each other to a lesser extent, and the multiple inner clamping plates are farther away from each other to a lesser extent, thereby adapting to the clamping work of stainless steel pipes of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 yes Figure 1 The enlarged view of point A in the middle; Figure 3 It is a three-dimensional structural schematic diagram of the present invention from another angle; Figure 4 yes Figure 3 The enlarged view of point B in the middle; Figure 5It is a partial structural schematic diagram of the clamping mechanism in the present invention; Figure 6 yes Figure 5 Enlarged view of point C in the middle; Figure 7 It is a cross-sectional view of the movable suction cylinder in the present invention; Figure 8 It is a cross-sectional view of the semicircular fixing column in the present invention.

[0018] In the figure: 1. cutting table; 11. cutting knife; 2. circular cutting mechanism; 21. fixed ring; 211. inner ring; 212. outer ring; 213. connecting column; 22. fixed inner gear ring; 23. rotating outer gear ring; 24. moving gear; 25. fixed gear; 26. first motor; 27. support rod; 28. hydraulic rod; 29. ​​U-shaped plate; 210. second motor; 3. cooling mechanism; 31. rotating rod; 32. mobile suction cylinder; 33. mobile block; 34. reciprocating threaded section; 35. piston block; 36. side plate; 37. liquid storage cylinder; 38. annular guide frame; 39. infusion tube; 310. drainage tube; 4. Adjusting mechanism; 41. semicircular fixed column; 42. semicircular rotating column; 43. connecting pipe; 5. L-shaped rod; 51. first annular limiting groove; 6. L-shaped supporting block; 61. second annular limiting groove; 7. clamping mechanism; 71. fixed plate; 72. central gear; 73. knob; 74. transmission rod; 75. clamping block; 76. extension rod; 77. threaded section; 78. threaded block; 79. slider; 710. inner clamping plate; 711. first articulated seat; 712. second articulated seat; 713. connecting rod; 714. peripheral gear; 715. rack; 716. fixed rod; 717. outer clamping plate; 8. limiting arc block. DETAILED DESCRIPTION

[0019] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] Example: Refer to Figures 1 to 8 , a stainless steel cutting device, comprising: A cutting table 1, above which a cutting knife 11 for cutting the stainless steel pipe is provided; The circular cutting mechanism 2 is used to drive the cutting knife 11 to perform circular motion to automatically cut the stainless steel pipe. The circular cutting mechanism 2 includes a fixed ring 21 arranged above the cutting table 1. A fixed inner tooth ring 22 is fixedly connected to the side wall of the fixed ring 21. A rotating outer tooth ring 23 is rotatably connected to the side wall of the fixed ring 21. A moving gear 24 is meshed between the fixed inner tooth ring 22 and the rotating outer tooth ring 23. A gear 24 is rotatably connected to the side wall of the fixed ring 21 and meshed with the outer wall of the rotating outer tooth ring 23. A first motor 26 for driving the fixed gear 25 is fixedly connected to the side wall of the fixed ring 21 away from the rotating outer gear ring 23, a support rod 27 is rotatably connected to the mobile gear 24, a hydraulic rod 28 is fixedly connected to one end of the support rod 27 away from the mobile gear 24, a U-shaped plate 29 is fixedly connected to the output end of the hydraulic rod 28, the cutting knife 11 is rotatably connected between the two side walls of the U-shaped plate 29, and a second motor 210 for driving the cutting knife 11 is fixedly connected to the U-shaped plate 29; Specifically, an L-shaped rod 5 is fixedly connected to the upper part of the support rod 27, and a first annular limiting groove 51 is opened on the side wall of the fixed inner gear ring 22. The L-shaped rod 5 is slidably connected to the inner wall of the first annular limiting groove 51. Through the L-shaped rod 5 and the first annular limiting groove 51, the moving gear 24 can only drive the cutting knife 11 to perform circular motion when performing circular motion, thereby preventing the moving gear 24 from rotating itself and driving the support rod 27 and the cutting knife 11 to rotate, thereby ensuring that the cutting knife 11 can only move along the trajectory of circular motion.

[0021] In view of the problem that in the prior art, the staff needs to hold the stainless steel pipe and rotate it, or manually control the cutting knife to perform circular motion in order to cut the stainless steel pipe, and the operation process is cumbersome and the work efficiency is low, the present invention sets a circular cutting mechanism 2. During cutting, the fixed gear 25 is driven to rotate by the first motor 26, and then the rotating outer gear ring 23 is driven to rotate, so that the mobile gear 24 can perform circular motion along the fixed inner gear ring 22. The circular motion of the mobile gear 24 further drives the cutting knife 11 to perform circular motion through the support rod 27, the hydraulic rod 28 and the U-shaped plate 29, so as to automatically achieve circular cutting of the stainless steel pipe. There is no need for the staff to hold the stainless steel pipe and rotate it or control the circular motion of the cutting knife 11. The operation is convenient and the cutting efficiency of the stainless steel pipe is improved.

[0022] A cooling mechanism 3, used to automatically cool the cutting position when the cutting knife 11 is cutting to avoid too large a heat-affected area; The cooling mechanism 3 includes a rotating rod 31 fixedly connected to the moving gear 24, a moving suction cylinder 32 is provided on the side of the fixed ring 21 away from the moving gear 24, a moving block 33 is slidably connected to the inner wall of the moving suction cylinder 32 in a horizontal direction, a reciprocating threaded section 34 is provided on the portion of the rotating rod 31 extending into the moving suction cylinder 32, the moving block 33 is threadedly connected to the reciprocating threaded section 34, a piston block 35 is sealingly and slidably connected in the moving suction cylinder 32, the moving block 33 is fixedly connected to the piston block 35, a side plate 36 is fixedly connected to the cutting table 1, a liquid storage cylinder 37 is fixedly connected to the side plate 36, an annular guide frame 38 is sealingly and rotatably connected to the peripheral side wall of the liquid storage cylinder 37, an infusion pipe 39 is connected between the annular guide frame 38 and the inside of the moving suction cylinder 32, a discharge pipe 310 is fixedly connected to the outer wall of the moving suction cylinder 32, and both the discharge pipe 310 and the infusion pipe 39 are provided with a one-way valve.

[0023] Specifically, an atomizing nozzle is provided at one end of the liquid discharge pipe 310 away from the movable suction cylinder 32, and the cooling water can be evenly sprayed on the cutting position through the atomizing nozzle when being pumped out, thereby improving the cooling uniformity.

[0024] Specifically, an L-shaped support block 6 is fixedly connected to the outer wall of the movable suction cylinder 32, and a second annular limiting groove 61 is opened on the side wall of the fixed ring 21. The L-shaped support block 6 is slidably connected to the inner wall of the second annular limiting groove 61. Through the L-shaped support block 6 and the second annular limiting groove 61, the rotating rod 31 can only drive the movable suction cylinder 32 to perform circular motion, and the rotation of the rotating rod 31 itself cannot drive the movable suction cylinder 32 to rotate, so that the rotating rod 31 can rotate relative to the movable suction cylinder 32 to ensure the suction of cooling water.

[0025] Specifically, the fixed ring 21 is divided into an inner ring 211 and an outer ring 212. A connecting column 213 is fixedly connected between the inner ring 211 and the liquid storage cylinder 37, and the outer ring 212 is fixedly connected to the upper end of the cutting table 1 to prevent the circular motion of the rotating rod 31 from cutting off the fixed ring 21 and causing instability of the fixed ring 21, thereby ensuring that the inner ring 211 and the outer ring 212 of the fixed ring 21 are always coaxially arranged.

[0026] Specifically, the annular guide frame 38 can transport the cooling water in the liquid storage cylinder 37 to the mobile suction cylinder 32 through the infusion tube 39, and the annular guide frame 38 can rotate synchronously with the mobile suction cylinder 32 to avoid excessive twisting of the infusion tube 39 caused by the torsional force, thereby affecting the delivery of cooling water. At the same time, the end of the liquid storage cylinder 37 close to the inner ring 211 is fixedly connected to the upper end of the cutting table 1 to ensure that the positions of the inner ring 211 and the fixed inner gear ring 22 will not change, thereby ensuring that the mobile gear 24 rotates itself when performing a circular motion along the fixed inner gear ring 22.

[0027] Specifically, the one-way valve is provided so that the cooling water will not flow back when being pumped out.

[0028] In view of the problem in the prior art that during the cutting process, factors such as excessive heat input, slow cutting speed or insufficient heat conduction lead to an excessively large heat-affected zone, which in turn causes the high temperature generated during cutting to cause the local temperature of the stainless steel to rise, affecting the microstructure and mechanical properties of the stainless steel pipe, the present invention sets a cooling mechanism 3. During the cutting process, the moving gear 24 rotates itself during the circular motion, thereby driving the rotating rod 31 to rotate relative to the moving suction cylinder 32, so that the moving block 33 can reciprocate horizontally along the reciprocating threaded section 34, driving the piston block 35 to reciprocate horizontally inside the moving suction cylinder 32, forming a structure similar to a suction pump, thereby The cooling water in the liquid storage cylinder 37 is continuously pumped into the mobile suction cylinder 32 through the infusion tube 39, and the cooling water in the mobile suction cylinder 32 is continuously pumped out to the cutting position through the discharge tube 310. The cutting position is automatically cooled during the cutting process to avoid the situation where the heat affected zone is too large due to excessive temperature during the stainless steel cutting process, thereby ensuring the microstructure and mechanical properties of the stainless steel pipe. At the same time, there is no need to set up an additional driving source, thereby reducing the processing cost. Specifically, the heat affected zone refers to an area that is near the molten pool but not completely melted. In this area, the microstructure and mechanical properties of the metal will change, usually including grain coarsening, hardness changes, increased residual stress, etc.

[0029] The regulating mechanism 4 is used to adjust the cooling effect on the cutting position according to the temperature of the cutting blade 11.

[0030] The adjusting mechanism 4 includes a semicircular fixed column 41 fixedly connected to the inner wall of the movable suction cylinder 32, a semicircular rotating column 42 is sealed and rotatably connected inside the semicircular fixed column 41, the semicircular rotating column 42 extends to the outside of the semicircular fixed column 41, the interior of the cutting knife 11 is hollow, and a connecting pipe 43 is connected between the interior of the cutting knife 11 and the interior of the semicircular fixed column 41, and the interior of the cutting knife 11, the interior of the semicircular fixed column 41 and the interior of the connecting pipe 43 are filled with a thermal expansion and contraction medium.

[0031] Specifically, the thermal expansion and contraction medium is kerosene, which has the characteristics of expanding when heated and contracting when cooled.

[0032] When the cooling mechanism 3 cools the cutting position, there is a situation where the cooling effect is too high or too low, which further causes the following effects: When too much cooling water is discharged, the cooling effect is too high, which will cause cracks and deformation on the surface of the stainless steel, and even affect the hardness and toughness of the material, because the sudden drop in temperature will cause stress concentration; When too little cooling water is discharged, the cooling effect is too low, which may cause the cutting area to overheat, thereby affecting the cutting quality, causing excessive thermal deformation or burns, and may cause the cutting blade 11 to wear more severely.

[0033] In order to avoid the above problems, the present invention provides an adjustment mechanism 4. In the process of cooling the cutting position, the amount of cooling water pumped out during the suction can be adjusted by the temperature of the cutting blade 11 itself, thereby adjusting the cooling effect on the cutting position. The specific adjustment process of the cooling effect is as follows: When the temperature of the cutting blade 11 increases greatly, the expansion degree of the thermal expansion and contraction medium is relatively large, so that the rotation degree of the semicircular rotating column 42 relative to the semicircular fixed column 41 is relatively small, so that the space in the movable suction cylinder 32 is relatively large, and further the piston block 35 sucks relatively more cooling water when reciprocating, so that more cooling water is discharged to the cutting position, thereby improving the cooling intensity of the cutting position; When the temperature of the cutting blade 11 increases relatively small, the expansion degree of the thermal expansion and contraction medium is small, the rotation degree of the semicircular rotating column 42 relative to the semicircular fixed column 41 is large, and the space in the movable suction cylinder 32 is relatively small, and the piston block 35 further sucks relatively less cooling water when reciprocating, so that less cooling water is discharged to the cutting position, reducing the cooling intensity of the cutting position; The cooling effect at the cutting position changes with the temperature, avoiding the cooling effect being too high or too low, keeping the cooling effect within a more appropriate range, improving cutting efficiency and extending tool life.

[0034] The cutting table 1 is also provided with a clamping mechanism 7, which is used to synchronously fix the inner wall and the outer wall of the stainless steel pipe before cutting to avoid deformation of the stainless steel pipe. The clamping mechanism 7 includes a fixed plate 71 fixedly connected to the upper end of the cutting table 1, and a central gear 72 is rotatably connected to the fixed plate 71. A knob 73 coaxially fixedly connected to the central gear 72 is rotatably connected to the side wall of the fixed plate 71. A transmission rod 74 is fixedly connected to the central gear 72, and a clamping block 75 is rotatably connected to the end of the transmission rod 74 away from the fixed plate 71. A plurality of extension rods 76 are fixedly connected between the clamping block 75 and the fixed plate 71. A threaded section 77 is provided on the transmission rod 74, and a threaded block 78 is threadedly connected to the threaded section 77. A plurality of circular array-distributed screws are slidably connected to the clamping block 75. The slider 79 has an inner clamping plate 710 fixedly connected to each slider 79, a first hinge seat 711 is provided on each slider 79, a plurality of second hinge seats 712 distributed in a circular array are fixedly connected to the threaded block 78, a connecting rod 713 is provided between each first hinge seat 711 and the second hinge seat 712 at the corresponding position, a plurality of circumferential side gears 714 distributed in a circular array are rotatably connected to the fixed disk 71, a plurality of racks 715 distributed in a circular array are also slidably connected to the fixed disk 71, each rack 715 is meshed with the circumferential side gears 714 at the corresponding position, a fixing rod 716 is fixedly connected to each rack 715, and an outer clamping plate 717 is fixedly connected to the end of each fixing rod 716 away from the rack 715.

[0035] Specifically, a limiting arc block 8 is fixedly connected to the clamping block 75, and a limiting arc groove is provided on the threaded block 78 which is slidably connected to the limiting arc block 8. The limiting arc block 8 and the limiting arc groove can limit the threaded block 78 to prevent the threaded block 78 from rotating following the threaded segment 77.

[0036] In order to improve the stability of the stainless steel pipe during the cutting process, the present invention sets a clamping mechanism 7. Before cutting, the central gear 72 is driven to rotate by the knob 73, which drives the transmission rod 74 to rotate, so that the threaded block 78 can be displaced along the threaded segment 77, and further drives the plurality of sliders 79 to move away from each other through the first hinge seat 711, the second hinge seat 712 and the connecting rod 713, so that the plurality of inner clamping plates 710 can move away from each other and abut against the inner wall of the stainless steel pipe. At the same time, the rotation of the central gear 72 will also drive the plurality of racks 715 to approach each other through the peripheral gear 714, and then drive the plurality of outer clamping plates 717 to approach each other and abut against the outer wall of the stainless steel pipe, so as to achieve synchronous clamping and fixation of the inner and outer walls of the stainless steel pipe, improve the stability of the stainless steel pipe during cutting, and at the same time avoid the stainless steel pipe from being deformed inward due to the effect of shear stress during cutting, thereby improving the cutting effect of the stainless steel pipe.

[0037] In addition, when the thickness of the stainless steel pipe changes, the multiple outer clamping plates 717 are closer to each other, and the multiple inner clamping plates 710 are farther away from each other, which adapts to the clamping of stainless steel pipes of different thicknesses. Here, when the thickness of the stainless steel pipe increases, the thickness increases in equal proportions to the inside and outside, ensuring the clamping and fixing effect of the stainless steel pipe.

[0038] The present invention can be explained by the following operation mode: Before cutting, the knob 73 is turned to drive the central gear 72 to rotate, which drives the transmission rod 74 to rotate, so that the threaded block 78 can be displaced along the threaded section 77, and further drives the plurality of sliders 79 to move away from each other through the first hinge seat 711, the second hinge seat 712 and the connecting rod 713, so that the plurality of inner clamping plates 710 can move away from each other and abut against the inner wall of the stainless steel pipe. At the same time, the rotation of the central gear 72 will also drive the plurality of racks 715 to move closer to each other through the peripheral gear 714, and then drive the plurality of outer clamping plates 717 to move closer to each other and abut against the outer wall of the stainless steel pipe, so as to achieve synchronous clamping and fixing of the inner and outer walls of the stainless steel pipe. During cutting, the cutting knife 11 is driven to rotate by the second motor 210, and the cutting knife 11 is driven to move by the hydraulic rod 28 until it cuts into the stainless steel pipe. Then, the first motor 26 is turned on to drive the fixed gear 25 to rotate, thereby driving the rotating outer gear ring 23 to rotate, so that the moving gear 24 can perform a circular motion along the fixed inner gear ring 22. The circular motion of the moving gear 24 further drives the cutting knife 11 to perform a circular motion through the support rod 27, the hydraulic rod 28 and the U-shaped plate 29, thereby automatically realizing the circular cutting of the stainless steel pipe. During the cutting process, the moving gear 24 rotates in the circular motion, thereby driving the rotating rod 31 to rotate relative to the moving suction cylinder 32, so that the moving block 33 can reciprocate horizontally along the reciprocating threaded section 34, forming a structure similar to a suction pump, thereby continuously pumping the cooling water in the liquid storage cylinder 37 to the cutting position, and automatically realizing the cooling treatment of the cutting position during the cutting process; During the process of cooling the cutting position, the temperature of the cutting knife 11 itself can be transferred to the thermal expansion and contraction medium, so that the rotation degree of the semicircular rotating column 42 relative to the semicircular fixed column 41 is adjusted according to the different expansion degrees of the thermal expansion and contraction medium, and the internal space size of the movable suction cylinder 32 is adjusted, thereby realizing the adjustment of the pumping amount of cooling water, thereby adjusting the cooling effect on the cutting position, so that the cooling effect of the cutting position changes with the temperature, avoiding the cooling effect being too high or too low.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stainless steel cutting device, characterized in that: include: A cutting table (1), wherein a cutting knife (11) for cutting the stainless steel pipe is provided above the cutting table (1); A circular cutting mechanism (2) is used to drive a cutting knife (11) to perform circular motion so as to automatically cut a stainless steel pipe. The circular cutting mechanism (2) comprises a fixed ring (21) arranged above a cutting table (1). A fixed inner tooth ring (22) is fixedly connected to a side wall of the fixed ring (21). A rotating outer tooth ring (23) is rotatably connected to the side wall of the fixed ring (21). A moving gear (24) is meshedly connected between the fixed inner tooth ring (22) and the rotating outer tooth ring (23). A fixed gear meshed with the outer wall of the rotating outer tooth ring (23) is rotatably connected to the side wall of the fixed ring (21). (25), a first motor (26) for driving the fixed gear (25) is fixedly connected to a side wall of the fixed ring (21) away from the rotating outer gear ring (23), a support rod (27) is rotatably connected to the moving gear (24), a hydraulic rod (28) is fixedly connected to one end of the support rod (27) away from the moving gear (24), a U-shaped plate (29) is fixedly connected to the output end of the hydraulic rod (28), the cutting knife (11) is rotatably connected between two side walls of the U-shaped plate (29), and a second motor (210) for driving the cutting knife (11) is fixedly connected to the U-shaped plate (29); A cooling mechanism (3) is used to automatically cool the cutting position when the cutting knife (11) is performing a cutting operation to avoid an excessively large heat-affected area; The regulating mechanism (4) is used to regulate the cooling intensity of the cutting position according to the temperature of the cutting knife (11).

2. The stainless steel cutting device according to claim 1, characterized in that: An L-shaped rod (5) is fixedly connected to the support rod (27), a first annular limiting groove (51) is provided on the side wall of the fixed inner gear ring (22), and the L-shaped rod (5) is slidably connected to the inner wall of the first annular limiting groove (51).

3. The stainless steel cutting device according to claim 1, characterized in that: The cooling mechanism (3) comprises a rotating rod (31) fixedly connected to a moving gear (24); a moving suction cylinder (32) is provided on a side of the fixed ring (21) away from the moving gear (24); a moving block (33) is slidably connected to the inner wall of the moving suction cylinder (32) in a horizontal direction; a reciprocating threaded section (34) is provided on the portion of the rotating rod (31) extending into the moving suction cylinder (32); the moving block (33) is sleeved on the reciprocating threaded section (34); a piston block (35) is sealingly and slidably connected to the inside of the moving suction cylinder (32); The moving block (33) is fixedly connected to the piston block (35); a side plate (36) is fixedly connected to the cutting table (1); a liquid storage cylinder (37) is fixedly connected to the side plate (36); an annular flow guide frame (38) is sealingly and rotatably connected to the peripheral side wall of the liquid storage cylinder (37); a liquid infusion tube (39) is connected between the annular flow guide frame (38) and the inside of the moving suction cylinder (32); a liquid discharge tube (310) is fixedly connected to the outer wall of the moving suction cylinder (32); and both the liquid discharge tube (310) and the liquid infusion tube (39) are provided with a one-way valve.

4. The stainless steel cutting device according to claim 3, characterized in that: An atomizing nozzle is provided at one end of the liquid discharge pipe (310) away from the movable suction cylinder (32).

5. The stainless steel cutting device according to claim 3, characterized in that: An L-shaped support block (6) is fixedly connected to the outer wall of the movable suction cylinder (32), a second annular limiting groove (61) is provided on the side wall of the fixing ring (21), and the L-shaped support block (6) is slidably connected to the inner wall of the second annular limiting groove (61).

6. The stainless steel cutting device according to claim 3, characterized in that: The fixed ring (21) is divided into two parts, an inner ring (211) and an outer ring (212); a connecting column (213) is coaxially fixedly connected between the inner ring (211) and the liquid storage cylinder (37); and the outer ring (212) is fixedly connected to the upper end of the cutting table (1).

7. The stainless steel cutting device according to claim 3, characterized in that: The adjustment mechanism (4) comprises a semicircular fixed column (41) fixedly connected to the inner wall of the movable suction cylinder (32); a semicircular rotating column (42) is sealingly and rotatably connected inside the semicircular fixed column (41); the semicircular rotating column (42) extends outside the semicircular fixed column (41); the interior of the cutting knife (11) is hollow; a connecting pipe (43) is connected between the interior of the cutting knife (11) and the interior of the semicircular fixed column (41); the interior of the cutting knife (11), the interior of the semicircular fixed column (41) and the interior of the connecting pipe (43) are filled with a thermal expansion and contraction medium.

8. The stainless steel cutting device according to claim 1, characterized in that: The cutting table (1) is also provided with a clamping mechanism (7) for synchronously fixing the inner wall and the outer wall of the stainless steel pipe before cutting to avoid deformation of the stainless steel pipe. The clamping mechanism (7) comprises a fixed plate (71) fixedly connected to the upper end of the cutting table (1); a central gear (72) is rotatably connected to the fixed plate (71); a knob (73) coaxially fixedly connected to the central gear (72) is rotatably connected to the side wall of the fixed plate (71); a transmission rod (74) is fixedly connected to the central gear (72); an end of the transmission rod (74) away from the fixed plate (71) is rotatably connected to a clamping block (75); a plurality of extension rods (76) are fixedly connected between the clamping block (75) and the fixed plate (71); a threaded section (77) is provided on the transmission rod (74); a threaded block (78) is threadedly connected to the threaded section (77); a plurality of circular arrays of threaded blocks (78) are slidably connected to the clamping block (75); The invention relates to a plurality of sliders (79) distributed in a circumferential array, each of which is fixedly connected to an inner clamping plate (710), each of which is provided with a first hinge seat (711), a plurality of second hinge seats (712) distributed in a circumferential array are fixedly connected to the threaded block (78), a connecting rod (713) is provided between each of the first hinge seats (711) and the second hinge seats (712) at the corresponding position, a plurality of circumferential side gears (714) distributed in a circumferential array are rotatably connected to the fixed disk (71), a plurality of racks (715) distributed in a circumferential array are also slidably connected to the fixed disk (71), each of which is meshed with the circumferential side gear (714) at the corresponding position, a fixing rod (716) is fixedly connected to each of the racks (715), and an outer clamping plate (717) is fixedly connected to one end of each fixing rod (716) away from the rack (715).

9. The stainless steel cutting device according to claim 8, characterized in that: The clamping block (75) is fixedly connected to a limiting arc block (8), and the threaded block (78) is provided with a limiting arc groove that is slidably connected to the limiting arc block (8).

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