Automated pipe cutting apparatus and method

Abstract

The application discloses an automatic pipe cutting device and method, and belongs to the technical field of metal pipe processing. The automatic pipe cutting device comprises a main body module and a continuous cutting module. The main body module comprises a main body frame. The top of the main body frame is fixedly connected with two mounting plates. A plurality of rolling rods are rotatably connected between the two mounting plates. The outer surfaces of the plurality of rolling rods are fixedly connected with first limiting rollers. The front end surface of the main body frame is fixedly connected with a first n-shaped frame. The front end surface of the first n-shaped frame is fixedly connected with a second n-shaped frame. The lifting block, the air cylinder, the electric saw, the elastic component, the track component, the stepped rack linkage component and the conveying component are arranged, so that the air cylinder repeatedly drives the electric saw to perform the lifting step, continuous cutting is realized, the staff needs not to continuously assist in operation, the staff burden is reduced, the device has no more driving facilities, the cost is low, and the device is convenient to popularize and use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal pipe processing, more particularly to an automatic pipe cutting device and method. BACKGROUND

[0002] Pipe fittings are used to transport gas, liquid or solid particles of fluid device connected by pipe, pipe connecting parts and valves, etc. The pipe fittings made of metal are more common in pipe fittings. In order to meet the length requirements of the pipe fittings after leaving the factory, the metal pipe fittings need to be cut during the production process.

[0003] For the above-mentioned related technology, the current long metal pipe needs to be cut in most cases. The length of each section of the long pipe is the same after cutting, which is convenient for the use of the pipe. When cutting, the worker needs to place the long pipe on the cutting device, then measure and mark the long pipe by tape measure, and finally cut the pipe at the marked position by the worker. This method can cut the pipe to a fixed length, but it needs the worker to assist continuously, which is labor-intensive. Some numerical control fixed-length cutting devices need multiple driving facilities to drive cooperatively, which improves the cutting efficiency and reduces the burden of the worker, but the cost is high, which is not conducive to popularization. Therefore, we propose an automatic pipe cutting device and method. SUMMARY

[0004] In order to solve the above problems, the present application provides an automatic pipe cutting device and method, which adopts the following technical scheme:

[0005] The utility model provides an automatic pipe cutting device, including main module and continuous cutting module, the main module includes main frame, the top of main frame is fixedly connected with two mounting plates, a plurality of rolling rods are rotatably connected between two mounting plates, the outer surface of a plurality of rolling rods is fixedly connected with first limit roller, the front end surface of main frame is fixedly connected with first n frame, the front end surface of first n frame is fixedly connected with second n frame, the continuous cutting module includes two air cylinders fixedly connected in the top of first n frame, the output shaft of two air cylinders all extends to the inside of first n frame, the output shaft of two air cylinders is fixedly connected with electric saw between, the both sides of first n frame are all set up with the sliding slot, the inside of two sliding slots is all slidably connected with lift slide, two lift slides are all connected with electric saw, the opposite side of two lift slides is all provided with elastic component, two elastic components are all fixedly connected with ladder rack on, the both sides of conveying assembly are provided with link component, two link components are respectively engaged with two ladder racks, the both sides of second n frame are provided with track component with two lift slides between, the both sides of second n frame are provided with fixed component with two lift slides between.

[0006] Further, the conveying assembly includes four conveying rods rotatably connected between the two mounting plates, the two ends of the four conveying rods respectively penetrate through the two mounting plates, the two ends of two of the conveying rods are fixedly connected with transmission rollers, the outer surfaces of every two transmission rollers are drivingly connected with a transmission belt, and the outer surfaces of the four conveying rods are fixedly connected with second limit rollers.

[0007] By adopting the above technical scheme, the two second limit rollers can be synchronously rolled to convey the pipes.

[0008] Further, the conveying assembly further includes ratchets fixedly connected to the outer surfaces of the two conveying rods, and two ratchets are movably connected to the outer surfaces of the two ratchets.

[0009] By adopting the above technical scheme, the rotation direction of the second limit rollers can be limited.

[0010] Further, the link component includes a second hexagonal rod fixedly connected to one side of one of the transmission rollers, an activity sleeve movably sleeved to the outer surface of the second hexagonal rod, a link gear fixedly connected to the outer surface of the activity sleeve, the outer surface of the link gear engaged with one of the ladder racks, a plurality of mounting holes linearly and equidistantly arranged in the interior of the second hexagonal rod, a threaded peg movably inserted into one of the mounting holes in the interior of the activity sleeve, and two nuts threadedly connected to the outer surface of the threaded peg.

[0011] By adopting the technical scheme, the stepped rack can be connected, so that the stepped rack drives the second limiting roller to roll when descending.

[0012] Further, the elastic component includes a hollow frame fixedly connected to one side of one of the lifting sliders, the hollow frame movably connects an activity block inside, the bottom of the activity block is fixedly connected with a long plate, one side of the long plate is fixedly connected with a connecting sliding shaft, a first return spring is fixedly connected between one end of the activity block and the inner wall of the hollow frame, and one of the stepped racks is fixed with the long plate.

[0013] By adopting the technical scheme, the stepped rack can be movable and facilitate displacement.

[0014] Further, the trajectory component includes a right-angled triangular groove opened in one side of the first n-shaped frame, a rotating shaft is rotatably connected inside the right-angled triangular groove, one end of the rotating shaft extends to the inside of the first n-shaped frame, a torsion spring is fixedly connected between one end of the rotating shaft and the inner wall of the first n-shaped frame, a guide plate is fixedly connected to the other end of the rotating shaft, one end of the guide plate is in contact with the inner wall of the right-angled triangular groove, and the connecting sliding shaft is slidingly connected inside the right-angled triangular groove.

[0015] By adopting the technical scheme, the connecting gear is not driven when the stepped rack rises.

[0016] Further, the stepped rack is composed of a plurality of long racks, the outer surfaces of the plurality of long racks are connected to each other, and the plurality of long racks are arranged in a stepped manner.

[0017] By adopting the technical scheme, the metal pipe can be driven to move different distances, so as to be cut to different lengths.

[0018] Further, the fixing component includes a first hexagonal rod movably connected to one side of the second n-shaped frame, a ball is movably connected to one end of the first hexagonal rod, a clamping plate is fixedly connected to the other end of the first hexagonal rod, and a second return spring is fixedly connected between the clamping plate and one side of the inner wall of the second n-shaped frame.

[0019] By adopting the technical scheme, the metal pipe can be clamped by the clamping plate.

[0020] Further, the fixing component includes two steering rods fixedly connected to one side of one of the lifting sliders, a right-angled trapezoidal plate is fixedly connected between one end of the two steering rods, and the outer surface of the right-angled trapezoidal plate is matched with the outer surface of the ball.

[0021] By adopting the technical scheme, the metal pipe can be automatically fixed before cutting.

[0022] The cutting method of the automatic pipe cutting device comprises the following steps:

[0023] S1, adjustment step: the movable sleeve and the engaging gear can be removed from the second hexagonal rod after disassembly through the nut and the threaded bolt, different sizes of engaging gears can be replaced after removal, the engaging gears are fixed inside different mounting holes through the threaded bolt and the nut, so that the engaging gears of different sizes are connected with different step portions of the stepped rack, so that the number of rotations of the engaging gears driven by the stepped rack is different each time the stepped rack descends, and the length of the fixed cutting is changed;

[0024] S2, conveying and fixing step: the air cylinder and the electric saw are opened, the air cylinder will drive the electric saw to descend, the electric saw drives the two lifting sliders to descend, the two lifting sliders will drive the two hollow frames to descend in the descending process, so that the engaging slide shaft descends in the vertical part of the right triangle groove, and the subsequent engaging slide shaft will pass through the guide plate, and the stepped rack descends to drive the engaging gear, the engaging gear drives one of the transmission rollers to rotate through the movable sleeve and the second hexagonal rod, so that one of the conveying rods rotates, the two second limiting rollers roll through the linkage of the transmission belt, so that the second limiting rollers roll to convey the metal pipe, and the subsequent stepped rack is disconnected from the engaging gear, at this time the steering lever drives the right trapezoidal plate to descend, the inclined part of the right trapezoidal plate will contact the ball and push the first hexagonal rod, the first hexagonal rod drives the clamping plate to move and stretch the second return spring, when the stepped rack is disconnected from the engaging gear, the two clamping plates will clamp the metal pipe;

[0025] S3, cutting and resetting step: the continuously descending electric saw cuts the pipe, after cutting is completed, the air cylinder drives the electric saw to lift, when the electric saw is lifted, the engaging slide shaft will be guided to the inclined part of the right triangle groove through the guide plate to slide, so that the long plate and the movable block are displaced and the first return spring is compressed, so that the stepped rack will not drive the engaging gear during the rising process, when the engaging slide shaft rises to a certain height, the first return spring is opened to drive the engaging slide shaft to reset inside the right triangle groove, so that the stepped rack is connected with the engaging gear again at this time, and the second return spring drives the clamping plate to reset to release the clamping of the cut pipe;

[0026] S4, repeating step: the subsequent air cylinder repeats the above lifting step to realize continuous cutting without the need for continuous assistance of the staff.

[0027] In summary, the present application has the following beneficial technical effects:

[0028] (1) The present invention, through the setting of lifting slider, cylinder, electric saw, elastic component, trajectory component, stepped rack and pinion connection component and conveying component, enables the cylinder to repeatedly drive the electric saw to perform lifting steps to achieve continuous cutting, without the need for continuous assistance from the staff, reducing the burden on the staff, and the device has few driving facilities, low cost, and is easy to popularize and use.

[0029] (2) By setting the fixing components, the present invention enables the device to automatically fix the pipe after delivery without the need for manual operation, thereby making the pipe more stable during cutting and improving the stability of the device during operation.

[0030] (3) The present invention, through the setting of the second hexagonal rod, movable sleeve, connecting gear, threaded pin and stepped rack, makes the connecting gear replaceable, thereby making the number of rotations of the connecting gear different each time the stepped rack descends, thus changing the length of the fixed length cutting and improving the applicability of the device. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the conveying component of the present invention;

[0033] Figure 3 This is a schematic diagram of the position and structure of the torsion spring of the present invention;

[0034] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0035] Figure 5 This is a schematic diagram of the elastic component of the present invention;

[0036] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0037] Figure 7 This is a schematic diagram of the structure of the fixing component of the present invention;

[0038] Figure 8 This is an enlarged structural diagram of the fixing component C of the present invention.

[0039] Explanation of the labels in the diagram:

[0040] 100. Main module; 110. Main frame; 120. Mounting plate; 130. First n-shaped frame; 140. Second n-shaped frame; 150. First limiting roller;

[0041] 200, continuous cutting module; 210, air cylinder; 220, electric saw; 230, lifting slider; 240, elastic component; 241, hollow frame; 242, movable block; 243, first reset spring; 244, long plate; 245, connecting sliding shaft; 250, stepped rack; 260, conveying component; 261, second limiting roller; 262, transmission roller; 263, transmission belt; 264, ratchet wheel; 265, ratchet; 266, conveying rod; 270, track component; 271, right-angled triangular groove; 272, guide plate; 273, torsion spring; 280, fixing component; 281, first hexagonal rod; 282, clamping plate; 283, second reset spring; 284, ball; 285, steering rod; 286, right-angled trapezoidal plate; 290, connecting component; 291, second hexagonal rod; 292, movable sleeve; 293, connecting gear; 294, threaded bolt. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative work on the basis of the embodiments in the present application shall fall within the protection scope of the present application.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be internal communication of two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative work on the basis of the embodiments in the present application shall fall within the protection scope of the present application. Figures 1-8 The present application will be further described in detail.

[0046] Please refer to Figures 1-8The utility model provides an automatic pipe cutting device, including main module 100 and continuous cutting module 200, main module 100 includes main frame 110, the top fixed connection of main frame 110 has two mounting plates 120, a plurality of rolling bars are rotatably connected between two mounting plates 120, the outer surface of a plurality of rolling bars all are fixedly connected with first limit roller 150, the front end surface of main frame 110 is fixedly connected with first n-shaped frame 130, the front end surface of first n-shaped frame 130 is fixedly connected with second n-shaped frame 140, and continuous cutting module 200 includes two air cylinders 210 fixedly connected at the top of first n-shaped frame 130, and the output shaft of two air cylinders 210 all extends to the inside of first n-shaped frame 130, and the output shaft between two air cylinders 210 is fixedly connected with electric saw 220, and the both sides of first n-shaped frame 130 are all set up with sliding slot, and the inside of two sliding slots all is slidably connected with lift slide 230, and two lift slides 230 all are connected with electric saw 220, and the opposite side of two lift slides 230 all is provided with elastic assembly 240, and two elastic assemblies 240 all are fixedly connected with ladder rack 250, and the both sides of conveying assembly 260 are all provided with link assembly 290, and two link assemblies 290 are engaged with two ladder racks 250 respectively, and the both sides of first n-shaped frame 130 are all provided with trajectory assembly 270, and two trajectory assemblies 270 are connected with two elastic assemblies 240 respectively, and the both sides between second n-shaped frame 140 and two lift slides 230 are all provided with fixed assembly 280.

[0047] In use, the worker will need to place the metal pipe to be cut between the first limiting roller 150 and the conveying assembly 260, then open the air cylinder 210 and the electric saw 220, the air cylinder 210 will drive the electric saw 220 to descend, and the electric saw 220 drives the two lifting blocks 230 to descend, the two lifting blocks 230 will drive the two elastic assemblies 240 to descend during the descending process, so that the two elastic assemblies 240 drive the stepped rack 250 to descend, the stepped rack 250 will drive the transmission assembly 290, the transmission assembly 290 will drive the conveying assembly 260, so that the conveying assembly 260 rolls to convey the metal pipe, when the stepped rack 250 and the transmission assembly 290 are disengaged, the two fixed assemblies 280 clamp the metal pipe, so that the metal pipe is more stable, and then the continuously descending electric saw 220 cuts the pipe, after cutting, the air cylinder 210 drives the electric saw 220 to lift, when the electric saw 220 lifts, the elastic assembly 240 will slide in the track assembly 270, so that the stepped rack 250 will not drive the transmission assembly 290 during the ascending process, when the elastic assembly 240 rises to a certain height, it will reset in the track assembly 270, so that the stepped rack 250 is connected with the transmission assembly 290 again at this time, and the fixed assembly 280 will also loosen the clamping of the cut pipe, then the air cylinder 210 repeats the above steps to realize continuous cutting, without the need for workers to continuously assist in operation, and the device has low cost and is easy to popularize.

[0048] The conveying assembly 260 comprises four conveying rods 266 rotatably connected between the two mounting plates 120, two ends of the four conveying rods 266 respectively penetrating through the two mounting plates 120, and two ends of two of the four conveying rods 266 are fixedly connected with transmission rollers 262, the outer surfaces of each two transmission rollers 262 are drivingly connected with a transmission belt 263, the outer surfaces of the four conveying rods 266 are fixedly connected with second limiting rollers 261, the conveying assembly 260 further comprises ratchets 264 fixedly connected to the outer surfaces of two of the four conveying rods 266, one side of one of the two mounting plates 120 is movably connected with two ratchet teeth 265, one end of the two ratchet teeth 265 is movably connected to the outer surfaces of the two ratchet wheels 264 respectively, the connecting assembly 290 comprises a second hexagonal rod 291 fixedly connected to one side of one of the transmission rollers 262, the outer surface of the second hexagonal rod 291 movably sleeved with a movable sleeve 292, the outer surface of the movable sleeve 292 is fixedly connected with a connecting gear 293, the outer surface of the connecting gear 293 is engaged with one of the stepped racks 250, the inside of the second hexagonal rod 291 is linearly and equidistantly provided with a plurality of mounting holes, the movable sleeve 292 movably inserts a threaded bolt 294 into one of the mounting holes, the outer surface of the threaded bolt 294 is threadedly connected with two nuts, the elastic assembly 240 comprises a hollow frame 241 fixedly connected to one side of one of the lifting sliders 230, the inside of the hollow frame 241 movably connects with a movable block 242, the bottom of the movable block 242 is fixedly connected with a long plate 244, one side of the long plate 244 is fixedly connected with a connecting slide shaft 245, a first return spring 243 is fixedly connected between the movable block 242 and one end of the inner wall of the hollow frame 241, one of the stepped racks 250 is fixed with the long plate 244, the track assembly 270 comprises a right triangle groove 271 opened in one side of the first n-shaped frame 130, a rotating shaft is rotatably connected in the inside of the right triangle groove 271, one end of the rotating shaft extends into the inside of the first n-shaped frame 130, a torsion spring 273 is fixedly connected between one end of the rotating shaft and the inner wall of the first n-shaped frame 130, the other end of the rotating shaft is fixedly connected with a guide plate 272, one end of the guide plate 272 is in contact with the inner wall of the right triangle groove 271, and the connecting slide shaft 245 is slidingly connected in the inside of the right triangle groove 271.

[0049] When the cylinder 210 and the electric saw 220 are opened, the cylinder 210 will drive the electric saw 220 to descend, and the electric saw 220 will drive the two lifting sliders 230 to descend. During the descending process of the two lifting sliders 230, the two hollow frames 241 will be driven to descend, so that the connecting slide shaft 245 descends in the vertical part of the right triangle groove 271, and then the connecting slide shaft 245 will pass through the guide plate 272. At the same time, the stepped rack 250 descends to drive the connecting gear 293, the connecting gear 293 drives one of the transmission rollers 262 to rotate through the movable sleeve 292 and the second hexagonal rod 291, so that one of the conveying rods 266 rotates, and the two second limiting rollers 261 are rolled through the linkage of the transmission belt 263, so that the second limiting rollers 261 roll to convey the metal pipe, and at this time the continuously descending electric saw 220 cuts the pipe. After cutting, the cylinder 210 drives the electric saw 220 to lift up. When the electric saw 220 is lifted up, the connecting slide shaft 245 will be guided to the inclined part of the right triangle groove 271 through the guide plate 272 to slide, so that the long plate 244 and the movable block 242 are displaced and compress the first reset spring 243, so that the stepped rack 250 will not drive the connecting gear 293 during the ascending process. When the connecting slide shaft 245 rises to a certain height, the first reset spring 243 is opened to drive the connecting slide shaft 245 to reset in the right triangle groove 271, so that the stepped rack 250 is connected with the connecting gear 293 again at this time. At this time, the second reset spring 283 drives the clamp plate 282 to reset and loosen the clamping of the cut pipe. The subsequent cylinder 210 repeats the above lifting steps to realize continuous cutting.

[0050] The stepped rack 250 is composed of a plurality of long racks, the outer surfaces of the plurality of long racks are connected to each other, and the plurality of long racks are arranged in a stepped manner.

[0051] After the nut and the threaded bolt 294 are disassembled, the movable sleeve 292 and the connecting gear 293 can be removed from the second hexagonal rod 291. After removal, different sizes of connecting gears 293 can be replaced. The connecting gear 293 is fixed in different mounting holes by the threaded bolt 294 and the nut, so that the connecting gears 293 of different sizes are connected with different stepped parts of the stepped rack 250, so that the number of revolutions of the connecting gear 293 driven by the stepped rack 250 is different each time, thereby changing the length of the fixed-length cutting.

[0052] The fixing assembly 280 comprises a first hexagonal rod 281 movably connected to one side of the second n-shaped frame 140, one end of the first hexagonal rod 281 is movably connected with a ball 284, the other end of the first hexagonal rod 281 is fixedly connected with a clamping plate 282, the clamping plate 282 is fixedly connected with a second reset spring 283 between one side of the inner wall of the second n-shaped frame 140, the fixing assembly 280 comprises two steering rods 285 fixedly connected to one side of one of the lifting sliders 230, one end of the two steering rods 285 is fixedly connected with a right trapezoidal plate 286, the outer surface of the right trapezoidal plate 286 is matched with the outer surface of the ball 284.

[0053] At this time, the steering rod 285 drives the right trapezoidal plate 286 to descend, the inclined part of the right trapezoidal plate 286 will contact and push the first hexagonal rod 281, the first hexagonal rod 281 drives the clamping plate 282 to move and stretch the second reset spring 283, when the stepped rack 250 is disengaged from the engagement gear 293, the two clamping plates 282 will clamp the metal pipe, so that the metal pipe is more stable, and the subsequent ball 284 will roll on the vertical part of the right trapezoidal plate 286.

[0054] A cutting method for metal pipe machining, comprising the following steps:

[0055] S1, adjustment step: after disassembling by the nut and the threaded dowel 294, the movable sleeve 292 and the engagement gear 293 can be removed from the second hexagonal rod 291, after removal, different sizes of the engagement gear 293 can be replaced, the engagement gear 293 is fixed in different mounting holes by the threaded dowel 294 and the nut, so that the engagement gear 293 of different sizes is connected with different stepped parts of the stepped rack 250, so that the number of rotations of the engagement gear 293 driven by the subsequent stepped rack 250 each time is different, thereby changing the length of the fixed-length cutting;

[0056] S2, conveying fixing step: open the air cylinder 210 and the electric saw 220, the air cylinder 210 will drive the electric saw 220 to descend, and the electric saw 220 drives the two lifting sliders 230 to descend, the two lifting sliders 230 will drive the two hollow frames 241 to descend in the process of descending, so that the connecting slide shaft 245 descends in the vertical part of the right triangle groove 271, and the subsequent connecting slide shaft 245 will pass through the guide plate 272, and the stepped rack 250 descends to drive the connecting gear 293, the connecting gear 293 drives one of the transmission rollers 262 to rotate through the movable sleeve 292 and the second hexagonal rod 291, so that one of the conveying rods 266 rotates, and the two second limiting rollers 261 are rolled through the linkage of the transmission belt 263, so that the second limiting roller 261 rolls to convey the metal pipe, and the subsequent stepped rack 250 is separated from the connecting gear 293, at this time the steering rod 285 drives the right trapezoidal plate 286 to descend, the inclined part of the right trapezoidal plate 286 will contact the ball 284 and push the first hexagonal rod 281, the first hexagonal rod 281 drives the clamp plate 282 to move and stretch the second return spring 283, when the stepped rack 250 is separated from the connecting gear 293, the two clamp plates 282 will clamp the metal pipe;

[0057] S3, cutting reset step: the continuously descending electric saw 220 cuts the pipe, after cutting, the air cylinder 210 drives the electric saw 220 to lift, when the electric saw 220 lifts, the connecting slide shaft 245 will be guided to the inclined part of the right triangle groove 271 through the guide plate 272 to slide, so that the long plate 244 and the movable block 242 are displaced and the first return spring 243 is compressed, so that the stepped rack 250 will not drive the connecting gear 293 in the process of rising, when the connecting slide shaft 245 rises to a certain height, the first return spring 243 is opened to drive the connecting slide shaft 245 to reset in the right triangle groove 271, so that the stepped rack 250 is connected with the connecting gear 293 again, and at this time the second return spring 283 drives the clamp plate 282 to reset and release the clamping of the cut pipe;

[0058] S4, repeat step: the subsequent air cylinder 210 repeats the above lifting step to realize continuous cutting without the continuous assistance of the staff.

[0059] The implementation principle of the embodiment of the present application is as follows: in use, the worker places the metal pipe to be cut between the plurality of first limiting rollers 150 and the four second limiting rollers 261, then opens the air cylinder 210 and the electric saw 220, the air cylinder 210 drives the electric saw 220 to descend, the electric saw 220 drives the two lifting sliding blocks 230 to descend, the two lifting sliding blocks 230 drive the two hollow frames 241 to descend in the descending process, the connecting sliding shaft 245 descends in the vertical part of the right triangle groove 271, and the subsequent connecting sliding shaft 245 will pass through the guide plate 272, the stepped rack 250 descends to drive the connecting gear 293, the connecting gear 293 drives one of the transmission rollers 262 to rotate through the movable sleeve 292 and the second hexagonal rod 291, one of the conveying rods 266 rotates through the transmission belt 263, so that the two second limiting rollers 261 roll, the second limiting rollers 261 roll to convey the metal pipe, the stepped rack 250 is disconnected from the connecting gear 293, at this time the steering rod 285 drives the right trapezoidal plate 286 to descend, the inclined part of the right trapezoidal plate 286 will contact the ball 284 and push the first hexagonal rod 281, the first hexagonal rod 281 drives the clamping plate 282 to move and stretch the second return spring 283, when the stepped rack 250 is disconnected from the connecting gear 293, the two clamping plates 282 clamp the metal pipe, so that the metal pipe is more stable, the ball 284 rolls on the vertical part of the right trapezoidal plate 286, and the continuously descending electric saw 220 cuts the pipe at this time, after cutting, the air cylinder 210 drives the electric saw 220 to lift, when the electric saw 220 is lifted, the connecting sliding shaft 245 will be guided to the inclined part of the right triangle groove 271 through the guide plate 272 to slide, so that the long plate 244 and the movable block 242 are displaced and the first return spring 243 is compressed, so that the stepped rack 250 will not drive the connecting gear 293 in the ascending process, when the connecting sliding shaft 245 rises to a certain height, the first return spring 243 is opened to drive the connecting sliding shaft 245 to reset in the right triangle groove 271, so that the stepped rack 250 is connected with the connecting gear 293 again at this time, and the second return spring 283 drives the clamping plate 282 to reset to release the clamping of the cut pipe at this time, the air cylinder 210 repeats the above lifting steps to realize continuous cutting without the need for the worker to continuously assist in operation, and the device has low cost and is easy to popularize, the connecting gear 293 is installed through the threaded dowel 294 and the nut, the nut and the threaded dowel 294 are disassembled, the movable sleeve 292 and the connecting gear 293 can be taken off from the second hexagonal rod 291, different sizes of connecting gears 293 can be replaced after being taken off, the connecting gear 293 is fixed in different mounting holes through the threaded dowel 294 and the nut, so that the connecting gears 293 of different sizes are connected with different stepped parts of the stepped rack 250,Thus, the subsequent step rack 250 is lowered each time the transmission connection gear 293 rotates a different number of turns, thereby changing the length of the fixed-length cut.

[0060] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made in structure, shape, principle, etc. according to the present application should be encompassed within the protection scope of the present application.

Claims

1. An automated pipe cutting device, comprising a main module (100) and a continuous cutting module (200), characterized in that: The main module (100) includes a main frame (110), with two mounting plates (120) fixedly connected to the top of the main frame (110). Multiple rolling rods are rotatably connected between the two mounting plates (120), and a first limiting roller (150) is fixedly connected to the outer surface of each of the multiple rolling rods. A first n-shaped frame (130) is fixedly connected to the front end face of the main frame (110), and a second n-shaped frame (140) is fixedly connected to the front end face of the first n-shaped frame (130). The continuous cutting module (200) includes two cylinders (210) fixedly connected to the top of the first n-shaped frame (130). The output shafts of both cylinders (210) extend into the interior of the first n-shaped frame (130). An electric saw (220) is fixedly connected between the output shafts of the two cylinders (210). Slide grooves are provided on both sides of the first n-shaped frame (130). Lifting sliders (230) are slidably connected inside the two slide grooves. Both lifting sliders (230) are connected to the electric saw (220). Elastic components (240) are provided on the opposite sides of the two lifting sliders (230). Each of the elastic components (240) is fixedly connected with a stepped rack (250). A conveying component (260) is provided between the two mounting plates (120). A connecting component (290) is provided on both sides of the conveying component (260). The two connecting components (290) mesh with the two stepped racks (250) respectively. A track component (270) is provided on both sides of the first n-shaped frame (130). The two track components (270) are connected to the two elastic components (240) respectively. A fixing component (280) is provided between both sides of the second n-shaped frame (140) and the two lifting sliders (230). The conveying assembly (260) includes four conveying rods (266) rotatably connected between two mounting plates (120). The two ends of the four conveying rods (266) respectively penetrate the two mounting plates (120). Both ends of two of the conveying rods (266) are fixedly connected to a drive roller (262). A drive belt (263) is driven between the outer surfaces of every two drive rollers (262). The outer surfaces of the four conveying rods (266) are fixedly connected to a second limiting roller (261). The conveying assembly (260) also includes ratchet (264) fixedly connected to the outer surfaces of two of the conveying rods (266), and two ratchet teeth (265) are movably connected to one side of one of the mounting plates (120), with one end of each ratchet tooth (265) movably connected to the outer surfaces of the two ratchet wheels (264); The connecting assembly (290) includes a second hexagonal rod (291) fixedly connected to one side of one of the transmission rollers (262). A movable sleeve (292) is movably fitted on the outer surface of the second hexagonal rod (291). A connecting gear (293) is fixedly connected to the outer surface of the movable sleeve (292). The outer surface of the connecting gear (293) meshes with one of the stepped racks (250). The interior of the second hexagonal rod (291) has multiple mounting holes equidistantly arranged in a straight line. A threaded pin (294) is movably inserted into the interior of one of the mounting holes of the movable sleeve (292). Two nuts are threadedly connected to the outer surface of the threaded pin (294).

2. The automated pipe cutting device according to claim 1, characterized in that: The elastic component (240) includes a hollow frame (241) fixedly connected to one side of one of the lifting sliders (230). A movable block (242) is movably connected inside the hollow frame (241). A long plate (244) is fixedly connected to the bottom of the movable block (242). A connecting slide shaft (245) is fixedly connected to one side of the long plate (244). A first return spring (243) is fixedly connected between the movable block (242) and one end of the inner wall of the hollow frame (241). One of the stepped racks (250) is fixed to the long plate (244).

3. The automated pipe cutting device according to claim 2, characterized in that: The trajectory component (270) includes a right-angled triangular groove (271) formed on one side of the first n-shaped frame (130). A rotating shaft is rotatably connected inside the right-angled triangular groove (271). One end of the rotating shaft extends into the interior of the first n-shaped frame (130). A torsion spring (273) is fixedly connected between one end of the rotating shaft and the inner wall of the first n-shaped frame (130). A guide plate (272) is fixedly connected to the other end of the rotating shaft. One end of the guide plate (272) contacts the inner wall of the right-angled triangular groove (271). The connecting slide shaft (245) is slidably connected inside the right-angled triangular groove (271).

4. The automated pipe fitting cutting device according to claim 3, characterized in that: The stepped rack (250) is composed of multiple long racks, the outer surfaces of the multiple long racks are connected to each other, and the multiple long racks are arranged in a stepped manner.

5. The automated pipe cutting device according to claim 4, characterized in that: The fixing component (280) includes a first hexagonal rod (281) movably connected to one side of the second n-shaped frame (140), a ball bearing (284) movably connected to one end of the first hexagonal rod (281), a clamping plate (282) fixedly connected to the other end of the first hexagonal rod (281), and a second return spring (283) fixedly connected between the clamping plate (282) and one side of the inner wall of the second n-shaped frame (140).

6. The automated pipe cutting device according to claim 5, characterized in that: The fixing assembly (280) includes two steering rods (285) fixedly connected to one side of one of the lifting sliders (230), and a right-angled trapezoidal plate (286) fixedly connected between one end of the two steering rods (285), the outer surface of the right-angled trapezoidal plate (286) being adapted to the outer surface of the ball (284).

7. A cutting method for an automated pipe fitting cutting device, wherein the automated pipe fitting cutting device according to any one of claims 1-6 is characterized in that: Includes the following steps: S1. Adjustment steps: After disassembling with nuts and threaded pins (294), the movable sleeve (292) and connecting gear (293) can be removed from the second hexagonal rod (291). After removal, connecting gears (293) of different sizes can be replaced. The connecting gears (293) are fixed inside different mounting holes with threaded pins (294) and nuts, so that connecting gears (293) of different sizes are connected to different stepped parts of the stepped rack (250), so that the number of rotations of the connecting gear (293) is different each time the subsequent stepped rack (250) descends, thereby changing the length of the fixed-length cut. S2, Conveying and Fixing Steps: Open the cylinder (210) and the electric saw (220). The cylinder (210) will drive the electric saw (220) to descend, and the electric saw (220) will drive the two lifting sliders (230) to descend. During the descent of the two lifting sliders (230), they will drive the two hollow frames (241) to descend, causing the connecting slide shaft (245) to descend at the vertical part of the right-angled triangular groove (271). Subsequently, the connecting slide shaft (245) will pass through the guide plate (272), and at the same time, the stepped rack (250) descends, driving the connecting gear (293). The connecting gear (293) drives one of the transmission rollers (262) to rotate through the movable sleeve (292) and the second hexagonal rod (291), causing... One of the conveying rods (266) rotates, and through the linkage of the transmission belt (263), the two second limiting rollers (261) roll, so that the second limiting rollers (261) roll to convey the metal pipe. Subsequently, the stepped rack (250) disengages from the connecting gear (293). At this time, the steering rod (285) drives the right-angled trapezoidal plate (286) to descend. The inclined part of the right-angled trapezoidal plate (286) will contact the ball (284) and push the first hexagonal rod (281). The first hexagonal rod (281) drives the clamping plate (282) to move and stretch the second return spring (283). When the stepped rack (250) disengages from the connecting gear (293), the two clamping plates (282) will clamp the metal pipe. S3, Cutting and Reset Steps: The continuously descending electric saw (220) cuts the pipe. After the cutting is completed, the cylinder (210) drives the electric saw (220) to lift. When the electric saw (220) is lifted, the connecting slide shaft (245) will be guided by the guide plate (272) to the inclined part of the right-angle triangular groove (271) to slide, so that the long plate (244) and the movable block (242) will be displaced and the first reset spring (243) will be compressed, so that the stepped rack (250) will not drive the connecting gear (293) during the rising process. When the connecting slide shaft (245) rises to a certain height, the first reset spring (243) opens and drives the connecting slide shaft (245) to reset inside the right-angle triangular groove (271), so that the stepped rack (250) is reconnected to the connecting gear (293) at this time. At this time, the second reset spring (283) drives the clamping plate (282) to reset and release the clamping of the pipe that has been cut. S4. Repeat the steps: The subsequent cylinder (210) repeats the above lifting steps to achieve continuous cutting without the need for continuous assistance from staff.

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