Adjustable metal pipe cutting device

Abstract

The present invention relates to the technical field of metal pipe processing, and specifically to an adjustable metal pipe cutting device, comprising a base, a processing table is arranged on the top of the base, and also comprises a controller, a cutting mechanism, an adjusting mechanism, a clamping mechanism and a pushing mechanism, the cutting mechanism comprises a cutter and a telescopic component, the clamping mechanism comprises a pushing component, the pushing mechanism comprises a sliding component and two pushing plates, an L-shaped plate is fixedly arranged on the top of the processing table, the adjusting mechanism comprises a pressing plate, a first cylinder, a lifting frame, a driving component, a centering component and two arc-shaped pressing blocks, the driving component is arranged on the lifting frame, the centering component is arranged on the driving component, the pressing plate is fixedly arranged on the bottom of the lifting frame, the two arc-shaped pressing blocks are symmetrically arranged on the centering component, the first cylinder, the telescopic component, the pushing component and the driving component are all electrically connected to the controller, and the adjustable metal pipe cutting device of the present invention can meet the cutting requirements of metal pipes of different shapes.

Description

Technical Field

[0001] The invention relates to the technical field of metal pipe processing, and in particular to an adjustable metal pipe cutting device. Background Art

[0002] After the metal pipe fittings are produced, they need to be cut according to actual usage requirements in order to meet actual usage requirements. Existing metal pipe fittings include various shapes such as square and round.

[0003] The existing metal pipe cutting device has the following shortcomings: 1. The device does not have the function of clamping pipes of different shapes at the same time. When cutting metal pipes of different shapes, it is necessary to frequently disassemble and assemble the clamps on the cutting device, which is time-consuming and labor-intensive, and reduces the cutting efficiency.

[0004] 2. When cutting metal pipes, they need to be moved to the cutting position. This process is generally done manually, which not only wastes manpower, but also puts the workers' hands close to the cutter, which poses certain safety hazards. When fixed-length cutting is required, relying on manual pushing can easily reduce cutting accuracy.

[0005] 3. Since metal pipes generally have a small wall thickness, the overall weight of the cutting mechanism is large during cutting. The pressure applied to the outer wall of the metal pipe during direct cutting is large, which can easily cause cutting deformation and reduce cutting quality. Summary of the invention

[0006] The object of the present invention is to provide an adjustable metal pipe cutting device.

[0007] To achieve this object, the present invention adopts the following technical solutions: Provided is an adjustable metal pipe cutting device, comprising a base, with a processing table provided on the top of the base; It also includes a controller, a cutting mechanism, an adjusting mechanism, a clamping mechanism and a pushing mechanism; The cutting mechanism is arranged on the top of the base, and the cutting mechanism comprises a cutter and a telescopic assembly, the telescopic assembly is arranged on the top of the base, and the cutter is fixed on the telescopic assembly; The clamping mechanism is arranged on the top of the processing table, and the clamping mechanism includes a pushing assembly, a plurality of first guide wheels and a plurality of second guide wheels. The pushing assembly is arranged on the processing table, the plurality of first guide wheels are fixedly arranged on the pushing assembly, and the plurality of second guide wheels are rotatably arranged on the top of the processing table. The pushing mechanism is arranged on the processing table, and the pushing mechanism includes a sliding assembly and two pushing plates. The sliding assembly is arranged at the bottom of the processing table, and the two pushing plates are fixed on the sliding assembly. The top of the processing table is provided with an avoidance groove for the two pushing plates to slide. An L-shaped plate is fixedly provided on the top of the processing table, and the adjusting mechanism is arranged on the outer wall of the L-shaped plate. The adjusting mechanism includes a pressure plate, a first cylinder, a lifting frame, a driving assembly, a centering assembly and two arc-shaped pressure blocks. The first cylinder is inserted into the top of the L-shaped plate, the lifting frame is fixed on its output end, the driving assembly is arranged on the lifting frame, the centering assembly is arranged on the driving assembly, the pressure plate is fixed on the bottom of the lifting frame, and the two arc-shaped pressure blocks are symmetrically arranged on the centering assembly. The first cylinder, the telescopic assembly, the pushing assembly and the driving assembly are all electrically connected to the controller.

[0008] Furthermore, the pushing assembly includes a second cylinder, a push block and a slide rod. Two slide grooves are symmetrically arranged on the top of the processing table. The slide rod is slidably arranged on the top of the two slide grooves. The push block is fixedly arranged at the bottom of the slide rod. The second cylinder is fixedly arranged at the bottom of the processing table, and its output end is fixedly connected to the end of the push block away from the slide rod. Several first guide wheels are rotatably connected to the top of the slide rod, and the second cylinder is electrically connected to the controller.

[0009] Furthermore, the sliding assembly includes a screw slide, a slider, a skateboard and a connecting block. The screw slide is fixed at the bottom of the processing table, the slider is slidably arranged on the screw slide, the skateboard is fixed at the bottom of the slider, the connecting block is fixed at the top of the skateboard, and both push plates are fixedly connected to the top of the connecting block.

[0010] Furthermore, the telescopic assembly includes an electric push rod, an L-shaped rod and a micromotor. The electric push rod is fixed to the top of the base through a support rod, the L-shaped rod is fixed on its output end, the micromotor is inserted on the outer wall of the L-shaped rod, the cutter is fixedly connected to its output end, and the micromotor is electrically connected to the controller.

[0011] Furthermore, the driving assembly includes a stepper motor, a driving wheel, a driven wheel, a belt and a rotating shaft. The rotating shaft is rotatably arranged on the outer wall of the lifting frame, the driven wheel is fixed on the rotating shaft, the stepper motor is fixed on the lifting frame, the driving wheel is fixed on its output end, the belt sleeve is arranged between the driving wheel and the driven wheel, and the stepper motor is electrically connected to the controller.

[0012] Furthermore, the centering assembly includes a turntable, two connecting rods and two sliding bars. The turntable is fixed on the outer wall of the rotating shaft. Two limit grooves are symmetrically arranged on the outer wall of the pressure plate. Each sliding bar is slidably arranged on a limit groove. A hinge block is fixed on the outer wall of each sliding bar. Each connecting rod is hinged between one end of the turntable and a hinge block. The top of each arc-shaped pressure block is fixedly connected to the bottom of a sliding bar.

[0013] Furthermore, a guide rod is fixedly provided on the top of the lifting frame, the guide rod is slidably connected to the L-shaped plate, a buffer spring is sleeved on the outer wall of the upper half of the guide rod, an anti-slip block is fixedly provided on the top of the guide rod, and the bottom of the anti-slip block and the top of the L-shaped plate respectively abut against the two ends of the buffer spring.

[0014] Furthermore, a plurality of transmission wheels are arranged at equal intervals on the top of the processing table, and each transmission wheel is rotatably connected to the processing table.

[0015] Furthermore, two guide rails are fixed on the top of the base, and a sliding column is slidably provided on the top of each guide rail. A baffle is fixed between the tops of the two sliding columns, and a lap rod is fixed on the outer wall of the baffle. A servo motor is fixed on the top of the base through a vertical plate, and a gear is fixed on the output end of the servo motor. A slide rail is fixed on the outer wall of the vertical plate, and a rack is slidably provided on the outer wall of the slide rail. The rack is meshed with the gear, one end of the rack is fixedly connected to an end of the baffle away from the lap rod, and a square lining rod is inserted into the outer wall of the baffle close to the processing table, and the servo motor is electrically connected to the controller.

[0016] Furthermore, a circular lining rod is inserted into the outer wall of one end of the baffle plate close to the processing table.

[0017] Beneficial effects of the present invention: 1. The present invention designs an adjustment mechanism including a pressing plate, a first cylinder, a lifting frame, a driving assembly, a centering assembly and two arc-shaped pressing blocks. The pressing plate can press the square metal pipe fitting. When it is necessary to cut the circular metal pipe fitting, the driving assembly can drive the centering assembly, thereby driving the two arc-shaped pressing blocks to approach each other through the centering assembly, and the outer wall of the circular metal pipe fitting is pressed. The metal pipe fitting is clamped in cooperation with a plurality of first guide wheels and a plurality of second guide wheels, which facilitates subsequent cutting and achieves an adjustment effect, thereby meeting the cutting requirements of metal pipe fittings of different shapes.

[0018] 2. The present invention achieves a limiting effect by designing a baffle and a lap rod to resist the end of the metal pipe away from the push plate, thereby meeting the demand for fixed-length cutting. By designing gears, racks and servo motors, the baffle can be driven to slide horizontally to adjust the distance from the end of the metal pipe to the baffle, thereby achieving the effect of adjusting the cutting length.

[0019] 3. The present invention designs round liner rods and square liner rods, which can be inserted into the interior of round metal pipes or square metal pipes before cutting and kept at an appropriate distance from the cutter. This can prevent the metal pipe from being deformed due to excessive pressure exerted by the cutter on the outer wall of the metal pipe when the cutter is cutting, which is beneficial to improving the cutting quality.

[0020] 4. The present invention designs a pushing mechanism, namely a sliding assembly and two push plates, which cooperate with a plurality of transmission wheels designed on the top of the processing table. The sliding assembly can drive the two push plates to automatically push the metal pipe to the end close to the cutter. The plurality of transmission wheels are located at the bottom of the metal pipe, which is beneficial to improving the pushing efficiency of the metal pipe. Compared with the prior art, there is no need for manual loading, which saves labor costs, avoids workers' hands frequently approaching the cutter, and reduces safety hazards. At the same time, when fixed-length cutting is required, the cutting accuracy can be ensured and cutting errors will not be caused.

[0021] 5. The present invention designs the round liner rod and the square liner rod to be plug-in compatible with the baffle plate, so that when the liner rod is damaged, it can be quickly removed and replaced with a new one without discarding the entire baffle plate, which is beneficial to improving the maintenance efficiency of the device, reducing the cost of use, and further reducing the cutting cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings in the embodiment of the present invention are briefly introduced below.

[0023] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 for Figure 1 A in the enlarged view; Figure 3 for Figure 1 The enlarged view of point B in the figure; Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 5 for Figure 4 The enlarged view of point C in the figure; Figure 6 It is a schematic diagram of the cross-sectional structure of the processing table of the present invention; Figure 7 for Figure 6 The enlarged view of D in the figure; Figure 8 It is a schematic diagram of the cross-sectional structure of the pressing plate of the present invention; Fig. 9 for Figure 8 The enlarged view of point E in the figure; Fig.10 It is a schematic diagram of the planar structure of the circular metal pipe and the adjusting mechanism of the present invention; Fig.11 It is a three-dimensional exploded schematic diagram of the baffle, the round metal pipe, the round lining rod, the square metal pipe and the square lining rod of the present invention; In the figure: base 10, processing table 11, cutter 12, first guide wheel 13, second guide wheel 14, push plate 15, pressure plate 16, first cylinder 17, lifting frame 18, arc pressure block 20, second cylinder 21, push block 22, slide rod 23, slide groove 24, screw slide 25, slider 26, slide plate 27, connecting block 28, electric push rod 29, L-shaped rod 30, micro motor 31, stepping motor 32, driving wheel 33, driven wheel 34, belt 35, rotating shaft 36, turntable 37, connecting rod 38, slide bar 39, guide rod 40, buffer spring 41, transmission wheel 42, slide column 43, baffle 44, overlap rod 45, servo motor 46, gear 47, rack 48, square lining rod 49, round lining rod 50. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and they should not be understood as limitations of the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0026] Embodiment 1: reference Figures 1 to 10 As shown, the present invention provides a technical solution, an adjustable metal pipe cutting device, comprising a base 10, a processing table 11 is provided on the top of the base 10; It also includes a controller, a cutting mechanism, an adjusting mechanism, a clamping mechanism and a pushing mechanism; The cutting mechanism is arranged on the top of the base 10, and the cutting mechanism includes a cutter 12 and a telescopic assembly. The telescopic assembly is arranged on the top of the base 10, and the cutter 12 is fixed on the telescopic assembly. The clamping mechanism is arranged on the top of the processing table 11, and the clamping mechanism includes a pushing assembly, a plurality of first guide wheels 13 and a plurality of second guide wheels 14. The pushing assembly is arranged on the processing table 11, and the plurality of first guide wheels 13 are fixedly arranged on the pushing assembly. The plurality of second guide wheels 14 are all rotatably arranged on the top of the processing table 11. The plurality of second guide wheels 14 are arranged at equal intervals, and cooperate with the pushing mechanism to ensure that the metal pipe is approached to the cutter 12 at a uniform speed, which is conducive to improving the cutting effect. The pushing mechanism is arranged on the processing table 11, and the pushing mechanism includes a sliding assembly and two pushing plates 15. The sliding assembly is arranged at the bottom of the processing table 11, and the two pushing plates 15 are fixedly arranged on the sliding assembly. The top of the processing table 11 is provided with an avoidance groove for the two pushing plates 15 to slide. The avoidance groove provides a sliding space when the two pushing plates 15 push the metal pipe fittings to approach the cutter 12, thereby achieving an avoidance effect. An L-shaped plate is fixedly provided on the top of the processing table 11, and the adjusting mechanism is arranged on the outer wall of the L-shaped plate. The adjusting mechanism includes a pressing plate 16, a first cylinder 17, a lifting frame 18, a driving assembly, a centering assembly and two arc-shaped pressing blocks 20. The first cylinder 17 is inserted on the top of the L-shaped plate, the lifting frame 18 is fixed on its output end, the driving assembly is arranged on the lifting frame 18, the centering assembly is arranged on the driving assembly, the pressing plate 16 is fixed on the bottom of the lifting frame 18, and the two arc-shaped pressing blocks 20 are symmetrically arranged on the centering assembly. The first cylinder 17, the telescopic assembly, the pushing assembly and the driving assembly are all electrically connected to the controller.

[0027] Reference Figures 1 to 10 As shown, the pushing assembly includes a second cylinder 21, a push block 22 and a slide bar 23. Two slide grooves 24 are symmetrically arranged on the top of the processing table 11. The slide bar 23 is slidably arranged on the top of the two slide grooves 24. The push block 22 is fixedly arranged at the bottom of the slide bar 23. The second cylinder 21 is fixedly arranged at the bottom of the processing table 11, and its output end is fixedly connected to the end of the push block 22 away from the slide bar 23. A plurality of first guide wheels 13 are rotatably connected to the top of the slide bar 23. The second cylinder 21 is electrically connected to the controller. When the square metal pipe is placed horizontally, After entering the top of the plurality of transmission wheels 42, the second cylinder 21 is started through the controller, so that its output end extends toward the end close to the metal pipe fitting. Since its output end is fixedly connected to the slide bar 23 through the push block 22, the plurality of first guide wheels 13 are rotatably connected to the top of the slide bar 23, and the slide bar 23 is slidably connected to the top of the processing table 11, so that the plurality of first guide wheels 13 fit the outer wall of the metal pipe fitting, and then the plurality of first guide wheels 13 and the plurality of second guide wheels 14 clamp the outer wall of the metal pipe fitting.

[0028] Reference Figures 1 to 10 As shown, the sliding assembly includes a screw slide 25, a slider 26, a slide plate 27 and a connecting block 28. The screw slide 25 is fixedly arranged at the bottom of the processing table 11, the slider 26 is slidably arranged on the screw slide 25, the slide plate 27 is fixedly arranged at the bottom of the slider 26, and the connecting block 28 is fixedly arranged at the top of the slide plate 27. The two push plates 15 are fixedly connected to the top of the connecting block 28. When the first guide wheels 13 and the second guide wheels 14 clamp the outer wall of the square metal pipe, the slider 26 is driven by the screw slide 25 to slide toward the end close to the cutter 12. Since the slider 26 is fixedly connected to the connecting block 28 through the slide plate 27, the two push plates 15 are fixedly connected to the top of the connecting block 28, so that the two push plates 15 slide in the two avoidance grooves on the processing table 11 toward the end close to the cutter 12, that is, the metal pipe is pushed to the end close to the cutter 12.

[0029] Reference Figures 1 to 10As shown, the telescopic assembly includes an electric push rod 29, an L-shaped rod 30 and a micro motor 31. The electric push rod 29 is fixed on the top of the base 10 through a support rod, the L-shaped rod 30 is fixed on its output end, the micro motor 31 is inserted on the outer wall of the L-shaped rod 30, the cutter 12 is fixedly connected to its output end, and the micro motor 31 is electrically connected to the controller. When the square metal pipe is pressed by the pressing plate 16, the electric push rod 29 is started by the controller, so that its output end extends toward the end close to the processing table 11. Since the L-shaped rod is fixedly connected to the output end of the electric push rod 29, the micro motor 31 is plugged into the L-shaped rod 30, and the cutter 12 is fixedly connected to the output end of the micro motor 31, thereby driving the cutter 12 to extend toward the end close to the square metal pipe to cut it.

[0030] Reference Figures 1 to 10 As shown, the driving assembly includes a stepper motor 32, a driving wheel 33, a driven wheel 34, a belt 35 and a rotating shaft 36. The rotating shaft 36 is rotatably arranged on the outer wall of the lifting frame 18, and the driven wheel 34 is fixedly arranged on the rotating shaft 36. The stepper motor 32 is fixedly arranged on the lifting frame 18, and the driving wheel 33 is fixedly arranged on its output end. The belt 35 is sleeved between the driving wheel 33 and the driven wheel 34. The stepper motor 32 is electrically connected to the controller. When it is necessary to cut the circular metal pipe fitting, the circular metal pipe fitting is clamped according to the above steps, and then the first cylinder 17 is started by the controller to drive the pressing plate 16 to descend, so that the two arc-shaped pressing blocks 20 at the bottom of the lifting frame 18 are close to the outer wall of the circular metal pipe fitting, and then the stepper motor 32 is started by the controller, thereby driving the driving wheel 33 to rotate through its output end. Since the driven wheel 34 is fixedly connected to the rotating shaft 36, the driving wheel 33 and the driven wheel 34 are sleeved by the belt 35, thereby driving the rotating shaft 36 to rotate clockwise.

[0031] Reference Figures 1 to 10As shown, the centering assembly includes a rotating disk 37, two connecting rods 38 and two slide bars 39. The rotating disk 37 is fixedly arranged on the outer wall of the rotating shaft 36. Two limit grooves are symmetrically arranged on the outer wall of the pressure plate 16. Each slide bar 39 is slidably arranged on a limit groove. A hinge block is fixedly arranged on the outer wall of each slide bar 39. Each connecting rod 38 is hingedly arranged between one end of the rotating disk 37 and a hinge block. The top of each arc-shaped pressure block 20 is fixedly connected to the bottom of a slide bar 39. When the rotating shaft 36 rotates clockwise, due to the rotating disk 37 and the rotating shaft 36, the rotating disk 37 and the rotating shaft 36 rotate clockwise. Fixed connection, each slide bar 39 is slidably connected to a limit groove, each slide bar 39 is fixedly connected to a hinge block, one end of the turntable 37 and a hinge block are respectively connected to the two ends of a connecting rod 38, and the top of each arc-shaped pressure block 20 is fixedly connected to the bottom of a slide bar 39. The force makes the two arc-shaped pressure blocks 20 approach each other until they are tightly attached to the circumferential outer wall of the circular metal pipe, and cooperate with a plurality of first guide wheels 13 and a plurality of second guide wheels 14 to achieve a clamping effect, and then push them to the cutter 12 through two push plates 15 for cutting.

[0032] Reference Figures 1 to 10 As shown, a guide rod 40 is fixedly provided on the top of the lifting frame 18, and the guide rod 40 is slidably connected to the L-shaped plate. A buffer spring 41 is sleeved on the outer wall of the upper half of the guide rod 40, and an anti-slip block is fixedly provided on the top of the guide rod 40. The bottom of the anti-slip block and the top of the L-shaped plate respectively contact the two ends of the buffer spring 41. When the end of the square metal pipe away from the push plate 15 is pushed to be close to the baffle 44, the first cylinder 17 is started by the controller, so that its output end drives the lifting frame 18 to descend vertically. Since the pressing plate 16 is fixedly connected to the lifting frame 18, the pressing plate 16 is driven to descend vertically until the pressing plate 16 is in contact with the top of the square metal pipe, which has a pressing effect and prevents the cutter 12 from shaking during cutting, which is beneficial to improving the cutting quality. The guide rod 40 plays a guiding role to ensure that the lifting frame 18 descends stably, and the buffer spring 41 plays a buffering role to prevent the lifting frame 18 from descending vertically too fast and driving the pressing plate 16 to crush the metal pipe, thereby protecting the product.

[0033] Reference Figures 1 to 10 As shown, a plurality of transmission wheels 42 are evenly spaced on the top of the processing table 11, and each transmission wheel 42 is rotatably connected to the processing table 11. When cutting a square metal pipe, the metal pipe is first placed horizontally on the top of the plurality of transmission wheels 42, and one end and one side wall of the metal pipe are kept close to the outer walls of the two push plates 15 and the plurality of second guide wheels 14, respectively.

[0034] Reference Figures 1 to 10As shown, two guide rails are fixedly provided on the top of the base 10, and a slide column 43 is slidably provided on the top of each guide rail. A baffle 44 is fixedly provided between the tops of the two slide columns 43, and a lap rod 45 is fixedly provided on the outer wall of the baffle 44. A servo motor 46 is fixedly provided on the top of the base 10 through a vertical plate, and a gear 47 is fixedly provided on the output end of the servo motor 46. A slide rail is fixedly provided on the outer wall of the vertical plate, and a rack 48 is slidably provided on the outer wall of the slide rail. The rack 48 is meshed and connected with the gear 47, and one end of the rack 48 is fixedly connected to the end of the baffle 44 away from the lap rod 45 A square liner rod 49 is inserted into the outer wall of one end of the baffle 44 close to the processing table 11, and the servo motor 46 is electrically connected to the controller. When the end of the square metal pipe away from the push plate 15 is pushed to be close to the baffle 44, the lap rod 45 supports the bottom of the square metal pipe, and the square liner rod 49 is inserted into the end of the square metal pipe away from the push plate 15 but keeps a suitable distance from the cutter 12. In this way, the metal pipe can be prevented from being deformed due to the pressure applied to the pipe by the cutter 12 when cutting, which is beneficial to improving the cutting effect.

[0035] Working principle: When cutting a metal pipe, first place the metal pipe horizontally on top of a plurality of transmission wheels 42 .

[0036] When the metal pipe is horizontally placed on top of several transmission wheels 42, the first cylinder 17 is started by the controller so that its output end extends toward the end close to the metal pipe. Since its output end is fixedly connected to the slide bar 23 through the push block 22, several first guide wheels 13 are rotatably connected to the top of the slide bar 23, and the slide bar 23 is slidably connected to the top of the processing table 11, so that several first guide wheels 13 fit the outer wall of the metal pipe, and then several first guide wheels 13 and several second guide wheels 14 clamp the outer wall of the metal pipe.

[0037] After a plurality of first guide wheels 13 and a plurality of second guide wheels 14 clamp the outer wall of the metal pipe, the slider 26 is driven by the screw slide 25 to slide toward the end close to the cutter 12. Since the slider 26 is fixedly connected to the connecting block 28 through the slide plate 27, the two push plates 15 are fixedly connected to the top of the connecting block 28, so that the two push plates 15 slide in the two avoidance grooves on the processing table 11 toward the end close to the cutter 12, and the metal pipe is pushed toward the end close to the cutter 12.

[0038] When the end of the square metal pipe away from the push plate 15 is pushed to be close to the baffle 44, the lap rod 45 supports the bottom of the square metal pipe, and the square lining rod 49 is inserted into the end of the square metal pipe away from the push plate 15 but keeps a suitable distance from the cutter 12. In this way, the metal pipe can be prevented from being deformed due to the pressure applied by the cutter 12 to the pipe when the cutter 12 is cutting, which is conducive to improving the cutting effect. Then, the first The cylinder 17 drives the lifting frame 18 to descend vertically at its output end. Since the pressing plate 16 is fixedly connected to the lifting frame 18, the pressing plate 16 is driven to descend vertically until the pressing plate 16 fits against the top of the square metal pipe, thereby achieving a clamping effect to prevent the cutter 12 from shaking during cutting, which is beneficial to improving the cutting quality. The guide rod 40 plays a guiding role to ensure that the lifting frame 18 descends stably. The buffer spring 41 plays a buffering role to prevent the lifting frame 18 from descending vertically too fast and driving the pressing plate 16 to crush the metal pipe, thereby protecting the product.

[0039] When the square metal pipe is pressed by the pressing plate 16, the electric push rod 29 is started by the controller, so that its output end extends toward the end close to the processing table 11. Since the L-shaped rod is fixedly connected to the output end of the electric push rod 29, the micromotor 31 is plugged into the L-shaped rod 30, and the cutter 12 is fixedly connected to the output end of the micromotor 31, the cutter 12 is driven to extend toward the end close to the square metal pipe to cut it.

[0040] When it is necessary to cut a circular metal pipe, the circular metal pipe is clamped according to the above steps, and then the first cylinder 17 is started by the controller to drive the pressing plate 16 to descend, so that the two arc-shaped pressing blocks 20 at the bottom of the lifting frame 18 are close to the outer wall of the circular metal pipe. Then the stepping motor 32 is started by the controller, thereby driving the driving wheel 33 to rotate through its output end. Since the driven wheel 34 is fixedly connected to the rotating shaft 36, the driving wheel 33 and the driven wheel 34 are sleeved by the belt 35, thereby driving the rotating shaft 36 to rotate clockwise. Since the turntable 37 is fixedly connected to the rotating shaft 36, the rotating shaft 36 is rotated clockwise. Fixed connection, each slide bar 39 is slidably connected to a limit groove, each slide bar 39 is fixedly connected to a hinge block, one end of the turntable 37 and a hinge block are respectively connected to the two ends of a connecting rod 38, and the top of each arc-shaped pressure block 20 is fixedly connected to the bottom of a slide bar 39, and the two arc-shaped pressure blocks 20 are brought close to each other until they are tightly attached to the circumferential outer wall of the circular metal pipe, and cooperate with a plurality of first guide wheels 13 and a plurality of second guide wheels 14 to achieve a clamping effect, and then pushed to the cutter 12 through two push plates 15 for cutting.

[0041] Embodiment 2: In order to achieve the supporting effect on the inner wall of the circular metal pipe and prevent cutting deformation, The present invention provides another technical solution, referring to Fig.10 As shown, a circular liner rod 50 is inserted into the outer wall of one end of the baffle 44 close to the processing table 11. When the end of the circular metal pipe away from the push plate 15 is pushed to be close to the baffle 44, the lap rod 45 supports the bottom of the circular metal pipe, and the square liner rod 49 is inserted into the end of the circular metal pipe away from the push plate 15 but maintains a suitable distance from the cutter 12. In this way, the pressure applied by the cutter 12 to the circular metal pipe when the cutter 12 is cutting can be prevented from causing deformation, which is beneficial to improving the cutting effect.

Claims

1. An adjustable metal pipe cutting device, comprising a base (10), a processing table (11) being provided on the top of the base (10), characterized in that: It also includes a controller, a cutting mechanism, an adjusting mechanism, a clamping mechanism and a pushing mechanism; The cutting mechanism is arranged on the top of the base (10), and comprises a cutting knife (12) and a telescopic assembly, the telescopic assembly is arranged on the top of the base (10), and the cutting knife (12) is fixedly arranged on the telescopic assembly; The clamping mechanism is arranged on the top of the processing table (11), and the clamping mechanism comprises a pushing assembly, a plurality of first guide wheels (13) and a plurality of second guide wheels (14); the pushing assembly is arranged on the processing table (11), the plurality of first guide wheels (13) are fixedly arranged on the pushing assembly, and the plurality of second guide wheels (14) are rotatably arranged on the top of the processing table (11); The pushing mechanism is arranged on the processing table (11), and comprises a sliding assembly and two pushing plates (15); the sliding assembly is arranged at the bottom of the processing table (11), the two pushing plates (15) are fixedly arranged on the sliding assembly, and the top of the processing table (11) is provided with an avoidance groove for the two pushing plates (15) to slide; An L-shaped plate is fixedly provided on the top of the processing table (11), and an adjustment mechanism is arranged on the outer wall of the L-shaped plate. The adjustment mechanism comprises a pressure plate (16), a first cylinder (17), a lifting frame (18), a driving assembly, a centering assembly and two arc-shaped pressure blocks (20). The first cylinder (17) is inserted into the top of the L-shaped plate, the lifting frame (18) is fixedly provided on its output end, the driving assembly is provided on the lifting frame (18), the centering assembly is provided on the driving assembly, the pressure plate (16) is fixedly provided on the bottom of the lifting frame (18), and the two arc-shaped pressure blocks (20) are symmetrically provided on the centering assembly. The first cylinder (17), the telescopic assembly, the pushing assembly and the driving assembly are all electrically connected to the controller.

2. The adjustable metal pipe cutting device according to claim 1, characterized in that: The pushing assembly comprises a second cylinder (21), a pushing block (22) and a sliding rod (23); two sliding grooves (24) are symmetrically arranged on the top of the processing table (11); the sliding rod (23) is slidably arranged on the top of the two sliding grooves (24); the pushing block (22) is fixedly arranged on the bottom of the sliding rod (23); the second cylinder (21) is fixedly arranged on the bottom of the processing table (11); the output end of the second cylinder (21) is fixedly connected to an end of the pushing block (22) away from the sliding rod (23); a plurality of first guide wheels (13) are rotatably connected to the top of the sliding rod (23); and the second cylinder (21) is electrically connected to a controller.

3. The adjustable metal pipe cutting device according to claim 2, characterized in that: The sliding assembly comprises a screw slide (25), a slider (26), a slide plate (27) and a connecting block (28); the screw slide (25) is fixedly arranged at the bottom of the processing table (11); the slider (26) is slidably arranged on the screw slide (25); the slide plate (27) is fixedly arranged at the bottom of the slider (26); the connecting block (28) is fixedly arranged at the top of the slide plate (27); and the two push plates (15) are fixedly connected to the top of the connecting block (28).

4. The adjustable metal pipe cutting device according to claim 3, characterized in that: The telescopic assembly comprises an electric push rod (29), an L-shaped rod (30) and a micro motor (31); the electric push rod (29) is fixedly arranged on the top of the base (10) via a support rod; the L-shaped rod (30) is fixedly arranged on the output end thereof; the micro motor (31) is inserted on the outer wall of the L-shaped rod (30); the cutter (12) is fixedly connected to the output end thereof; and the micro motor (31) is electrically connected to the controller.

5. The adjustable metal pipe cutting device according to claim 4, characterized in that: The driving assembly comprises a stepping motor (32), a driving wheel (33), a driven wheel (34), a belt (35) and a rotating shaft (36); the rotating shaft (36) is rotatably mounted on the outer wall of the lifting frame (18); the driven wheel (34) is fixedly mounted on the rotating shaft (36); the stepping motor (32) is fixedly mounted on the lifting frame (18); the driving wheel (33) is fixedly mounted on the output end thereof; the belt (35) is sleeved between the driving wheel (33) and the driven wheel (34); and the stepping motor (32) is electrically connected to a controller.

6. The adjustable metal pipe cutting device according to claim 5, characterized in that: The centering assembly comprises a rotating disk (37), two connecting rods (38) and two slide bars (39); the rotating disk (37) is fixedly arranged on the outer wall of the rotating shaft (36); two limit grooves are symmetrically arranged on the outer wall of the pressure plate (16); each slide bar (39) is slidably arranged on one limit groove; a hinge block is fixedly arranged on the outer wall of each slide bar (39); each connecting rod (38) is hingedly arranged between one end of the rotating disk (37) and a hinge block; and the top of each arc-shaped pressure block (20) is fixedly connected to the bottom of a slide bar (39).

7. The adjustable metal pipe cutting device according to claim 6, characterized in that: A guide rod (40) is fixedly provided on the top of the lifting frame (18), the guide rod (40) is slidably connected to the L-shaped plate, a buffer spring (41) is sleeved on the outer wall of the upper half of the guide rod (40), an anti-slip block is fixedly provided on the top of the guide rod (40), and the bottom of the anti-slip block and the top of the L-shaped plate respectively abut against the two ends of the buffer spring (41).

8. The adjustable metal pipe cutting device according to claim 7, characterized in that: A plurality of transmission wheels (42) are arranged at equal intervals on the top of the processing table (11), and each transmission wheel (42) is rotatably connected to the processing table (11).

9. The adjustable metal pipe cutting device according to claim 8, characterized in that: Two guide rails are fixedly provided on the top of the base (10), a slide column (43) is slidably provided on the top of each guide rail, a baffle (44) is fixedly provided between the tops of the two slide columns (43), a lap rod (45) is fixedly provided on the outer wall of the baffle (44), a servo motor (46) is fixedly provided on the top of the base (10) through a vertical plate, a gear (47) is fixedly provided on the output end of the servo motor (46), a slide rail is fixedly provided on the outer wall of the vertical plate, a rack (48) is slidably provided on the outer wall of the slide rail, the rack (48) is meshedly connected with the gear (47), one end of the rack (48) is fixedly connected to one end of the baffle (44) away from the lap rod (45), a square lining rod (49) is inserted into the outer wall of one end of the baffle (44) close to the processing table (11), and the servo motor (46) is electrically connected to the controller.

10. The adjustable metal pipe cutting device according to claim 9, characterized in that: A circular lining rod (50) is inserted into the outer wall of one end of the baffle plate (44) close to the processing table (11).

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