Pipe shearing equipment

Abstract

The invention provides pipe shearing equipment, which relates to the field of pipe shearing, and comprises a driving plate, a first rotating shaft, a second rotating shaft and a third rotating shaft, matching openings are formed in one side faces of the two inner clamping columns, the inner clamping columns are in sliding fit with the two side edges of the driving plate, the inner clamping columns are connected with first installation strips, the first installation strips are connected with driving rods, the driving rods are connected with first sliding blocks, the first sliding rods are arranged outside the wider end of the driving plate, and the first sliding blocks are arranged on the first sliding rods in a sliding and sleeving mode. The two ends of the first sliding rod are connected with first mounting plates correspondingly, and the peripheral side of the first sliding rod is coaxially sleeved with a spring. The two outer clamping columns are parallel to the two inner clamping columns at intervals, and the distance between the two outer clamping columns is adjustable; central shafts of the cutting discs are parallel to the first axis at intervals, the intervals are adjustable, and the cutting discs rotate around the central shafts of the cutting discs and move along the first axis. The metal pipe fitting cutting device can stably clamp metal pipe fittings of different models and efficiently cut the metal pipe fittings, is easy to operate and has high practicability.

Description

Technical Field

[0001] The present application relates to the field of pipe fitting shearing, and specifically relates to a pipe cutting device. Background Art

[0002] When designing and manufacturing an automated control system, a variety of metal pipe fittings need to be set up to enable the normal operation of automated instruments; since different automated instruments are located at different positions in the system, it is necessary to first cut out pipe fittings of a specified length, then bend the pipe fittings into a specified shape, and finally connect them to the specified automated instrument and weld them into the automated control system.

[0003] Currently, the shearing of metal pipe fittings generally involves manually measuring the shearing point and then fixing the metal pipe fitting, and using a pipe cutter held by hand to perform the pipe cutting operation at the shearing point. This pipe cutter rotates the cutting disc manually and continuously rolls at the shearing point while applying pressure to the shearing point to complete the shearing; while the fixation of metal pipe fittings generally uses a conventional clamping mechanism to clamp the outer wall of the pipe fitting, and this fixing method is prone to unstable clamping, and when the clamping force is too large, it is easy to cause deformation of the metal pipe fitting; and during the shearing process, it is necessary to continuously rotate the cutting disc around the central axis of the pipe fitting manually, and at the same time, it is necessary to manually adjust the distance between the cutting disc and the central axis of the metal pipe fitting to maintain the pressure of the cutting disc on the metal pipe fitting, and the operation process is rather troublesome, affecting the pipe cutting efficiency. Summary of the Invention

[0004] In order to solve the above-mentioned defects of the related prior art, the present application provides a pipe cutting device that can stably clamp metal pipe fittings of different models and efficiently cut the metal pipe fittings, with simple operation and strong practicability.

[0005] In order to achieve the above object, the present invention adopts the following techniques: A pipe cutting device, comprising: A driving plate, the two side edges of which are symmetric bevels. Let the central axis parallel to the plate surface of the driving plate be the first axis, and the driving plate is rotatably arranged around the first axis and movably arranged along the first axis; Two inner clamping columns, each having a mating port on one side. The mating ports of the two inner clamping columns are respectively in sliding fit with the two side edges of the driving plate. The other side of each of the two inner clamping columns is a cylindrical surface, and the central axes of the cylindrical surfaces are all parallel to the first axis. Each inner clamping column is connected to a first mounting strip, each first mounting strip is connected to a driving rod, each driving rod is connected to a first slider. Outside the large end of the driving plate, there is a first sliding rod, the position of the first sliding rod in the axial direction of the first axis is fixed, the first sliding rod rotates with the driving plate and is parallel to the width direction of the driving plate. Each first slider is slidably sleeved on the first sliding rod. The two ends of the first sliding rod are respectively connected to a first mounting plate, and a spring is coaxially sleeved on the periphery of the first sliding rod. The two ends of the spring are respectively connected to the first slider and the first mounting plate, and the spring is always in a compressed state; Two outer clamping columns are respectively arranged outside the two side edges of the driving plate and rotate with the driving plate. The two outer clamping columns are both cylindrical bodies, and the two outer clamping columns are respectively arranged at intervals parallel to the two inner clamping columns in the width direction and the distance therebetween is adjustable; A cutting disc, with its central axis being the second axis. The second axis is spaced and parallel to the first axis and the distance therebetween is adjustable. The cutting disc is rotatably arranged around the second axis and is movably arranged along the first axis.

[0006] Further, outside the large end of the driving plate, a rotating head is coaxially arranged with the first axis, the position of the rotating head in the axial direction of the first axis is fixed. On the outside of the two side edges of the driving plate, there are respectively first mounting frames. Between the first mounting frames and the rotating head, there are respectively first connecting rods. Inside the two first mounting frames, there are respectively a first electric lead screw and a second sliding rod parallel to the first axis. The first electric lead screw is in threaded fit with a first mating block, the second sliding rod is in sliding fit with a second slider. Between the first mating block and the second slider, there is a connecting plate, and the connecting plate is connected to the large end of the driving plate. The two first mounting plates are respectively arranged on the two first mounting frames, and the rotating head is rotatably arranged around the first axis.

[0007] Further, the two first mounting frames are both connected to mounting blocks, the mounting blocks are both connected to second connecting rods, the second connecting rods are both connected to second mounting plates. On the opposite sides of the two second mounting plates, there are respectively two first screws with reverse threads rotatably connected. The two first screws are both parallel to the width direction, and the opposite ends of the two first screws are connected by a coupling. On one of the second mounting plates, there is a first rotating motor, and the driving shaft of the first rotating motor is coaxially connected to the corresponding first screw. The two first screws are both in threaded fit with second mating blocks, the second mating blocks are both connected to third sliders. Between the two second mounting plates, there is a third sliding rod connected in the width direction. The third sliders are both slidably sleeved on the third sliding rod. The two second mating blocks are both connected to a first support frame, and the two outer clamping columns are respectively connected to the two first support frames.

[0008] Further, it further includes a support plate, the support plate is fixed to the installation surface of the device, a second rotating motor and a bearing seat coaxial with the first axis are provided on the support plate, a rotating column is coaxially connected to the driving end of the second rotating motor, the rotating column coaxially penetrates through the bearing seat, and the rotating column is coaxially connected to a rotating head.

[0009] Further, it further includes a second support frame, the second support frame is fixed to the placement surface of the device, a second installation bar is provided on the second support frame, a driving gear arranged along the first axis is rotatably connected to the second installation bar, a driven sprocket is coaxially connected to the driving gear, a driving sprocket is coaxially installed on the rotating column, the driving sprocket and the driven sprocket are fitted with the same chain, a driven gear is rotatably connected to the second installation bar, the driven gear meshes with the driving gear, a worm is coaxially arranged outside the driven gear and the distance between them is adjustable, the worm rotates following the driven gear, the worm is fitted with a worm gear, a second screw rod is coaxially connected to the wheel surface of the worm gear facing the first axis, a third fitting block is in threaded fit with the second screw rod, a guide rod parallel to the second screw rod is connected to the side of the third fitting block facing away from the worm gear, the lower end of the second screw rod is rotatably connected to a fixed block, the fixed block does not rotate following the second screw rod, the guide rod slidably penetrates through the fixed block, and an installation rod parallel to the first axis is connected to the lower end of the guide rod, and the cutting disc is coaxially and rotatably installed on the installation rod.

[0010] Further, a first linkage block is connected to the side of the driven gear facing the worm, the first linkage block is connected with two linkage sleeves arranged at intervals and in parallel and both parallel to the central axis of the driven gear, a second linkage block is connected to the side of the worm facing the driven gear, the second linkage block is connected with two linkage rods arranged at intervals and in parallel and both parallel to the worm, and the two linkage rods are respectively in sliding fit with the two linkage sleeves.

[0011] Further, the second support frame is connected with a second mounting frame, a second electric lead screw parallel to the first axis is arranged in the second mounting frame, a fourth fitting block is in threaded fit with the second electric lead screw, the fourth fitting block is connected with a third mounting frame, the third mounting frame includes a first bracket, a second bracket, and a third bracket, the first bracket is connected with the fourth fitting block, the second bracket is connected with the first bracket, the wheel surface of the worm gear facing away from the first axis is rotatably connected to the second bracket, the third bracket is connected with the first bracket, and a third connecting rod is connected between the third bracket and the fixed block.

[0012] Furthermore, the fixed block is connected with a first support bar. Both ends of the first support bar are connected with two fourth mounting brackets. Inside the two fourth mounting brackets, there are respectively arranged a third electric lead screw and a fourth sliding rod parallel to the second screw rod. A cooperating bar is in threaded fit with the third electric lead screw. The cooperating bar is slidably sleeved on the fourth sliding rod. On the side of the cooperating bar facing the outer clamping column, there are rotatably connected two support columns parallel to the first axis. Both support columns are rotatably arranged around their own central axes. The two support columns are arranged in parallel at intervals along a direction perpendicular to the second screw rod and are spaced apart by a second predetermined distance. The distances between the two support columns and the first axis are equal.

[0013] The beneficial effects of the present invention are as follows: 1. The inner clamping column and the outer clamping column are used to stably clamp the end of the pipe fitting, and it can adapt to the shearing of shorter pipe fittings, and the pipe fitting will not be deformed during clamping.

[0014] 2. The driving plate, the inner clamping column and the outer clamping column are used to drive the pipe fitting to rotate, and there is no need for manual rotation of the cutting disc around the central axis of the pipe fitting, which simplifies the operation process and improves the pipe cutting efficiency.

[0015] 3. Through the linkage of the rotating column and the second screw rod, the distance between the cutting disc and the central axis of the metal pipe fitting is automatically adjusted while the pipe fitting is rotating to maintain the pressure of the cutting disc on the metal pipe fitting, further improving the pipe cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the pipe cutting device according to the embodiment of the present application.

[0017] Figure 2 is a three-dimensional schematic diagram of the driving plate and the inner clamping column according to the embodiment of the present application.

[0018] Figure 3 is a three-dimensional schematic diagram of the driving plate and its driving structure according to the embodiment of the present application.

[0019] Figure 4 is a three-dimensional schematic diagram of the outer clamping column and its driving structure according to the embodiment of the present application.

[0020] Figure 5 is a three-dimensional schematic diagram of the rotating head and its driving structure according to the embodiment of the present application.

[0021] Figure 6 is a three-dimensional schematic diagram of the linkage structure of the rotating column and the worm according to the embodiment of the present application.

[0022] Figure 7 is a three-dimensional schematic diagram of the cutting disc and its driving structure according to the embodiment of the present application.

[0023] Markings in the figure: 1 - drive plate, 11 - rotating head, 12 - first mounting bracket, 13 - first connecting rod, 14 - first electric lead screw, 15 - second slide bar, 16 - first mating block, 17 - second slider, 18 - connecting plate, 19 - support plate, 110 - second rotating motor, 111 - bearing seat, 112 - rotating column, 2 - inner clamping column, 21 - mating port, 22 - first mounting strip, 23 - drive rod, 24 - first slider, 25 - first slide bar, 26 - first mounting plate, 27 - spring, 3 - outer clamping column, 31 - mounting block, 32 - second connecting rod, 33 - second mounting plate, 34 - first screw rod, 35 - coupling, 36 - first rotating motor, 37 - second mating block, 38 - third slider, 39 - third slide bar, 310 - first support frame, 4 - cutting disc, 41 - second support frame, 42 - second mounting strip, 43 - driving gear, 44 - driven sprocket, 45 - driving sprocket, 46 - chain, 47 - driven gear, 48 - worm, 49 - worm gear, 410 - second screw rod, 411 - third mating block, 412 - guide rod, 413 - fixing block, 414 - mounting rod, 415 - first linkage block, 416 - linkage sleeve, 417 - second linkage block, 418 - linkage rod, 419 - second mounting frame, 420 - second electric lead screw, 421 - fourth mating block, 422 - third mounting frame, 423 - third connecting rod, 424 - first support strip, 425 - fourth mounting frame, 426 - third electric lead screw, 427 - fourth slide bar, 428 - mating strip, 429 - support column, 5 - pipe fitting. Detailed implementation mode

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will describe the implementation modes of the present invention in detail with reference to the accompanying drawings. However, the embodiments described herein are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0025] As Figure 1 shown, this embodiment provides a pipe cutting device, including a drive plate 1, an inner clamping column 2, an outer clamping column 3, and a cutting disc 4.

[0026] Specifically, as Figure 2 shown, both sides of the drive plate 1 are symmetric bevel edges. Let the central axis parallel to the plate surface of the drive plate 1 be the first axis. The drive plate 1 is rotatably arranged around the first axis and is movably arranged along the first axis.

[0027] Specifically, as Figure 2As shown in the figure, there are two inner clamping columns 2, and a fitting port 21 is provided on one side surface of each of them. The fitting ports 21 of the two inner clamping columns 2 are respectively in sliding fit with the two side edges of the driving plate 1. The other side surfaces of the two inner clamping columns 2 are both cylindrical surfaces, and the central axes of the cylindrical surfaces are all parallel to the first axis. More specifically, the central axes of the other side surfaces of the two inner clamping columns 2 and the first axis are coplanar in three axes; each inner clamping column 2 is connected with a first mounting strip 22, each first mounting strip 22 is connected with a driving rod 23, each driving rod 23 is connected with a first slider 24, and a first sliding rod 25 is arranged outside the large end of the driving plate 1. More specifically, since the two side edges of the driving plate 23 are bevel edges, the large end here refers to the wider end of the two ends of the driving plate 23; the position of the first sliding rod 25 in the axial direction of the first axis is fixed, the first sliding rod 25 rotates with the driving plate 1 and is parallel to the width direction of the driving plate 1, each first slider 24 is slidably sleeved on the first sliding rod 25, two ends of the first sliding rod 25 are respectively connected with a first mounting plate 26, a spring 27 is coaxially sleeved on the periphery of the first sliding rod 25, two ends of the spring 27 are respectively connected with the first slider 24 and the first mounting plate 26, the spring 27 is always in a compressed state, and the spring 27 is used to make the two inner clamping columns 2 always contact with the two side edges of the driving plate 1 through the driving rod 23 and the first slider 24, and is in sliding fit with the two side edges of the driving plate 1 through the fitting port 21; designed in this way, by moving the driving plate 1 along the first axis, the distance between the two inner clamping columns 2 can be adjusted.

[0028] Specifically, as Figure 1 shown in the figure, there are two outer clamping columns 3, which are respectively arranged outside the two side edges of the driving plate 1 and rotate with the driving plate 1. The two outer clamping columns 3 are both cylindrical bodies, and the two outer clamping columns 3 are respectively arranged at intervals parallel to the two inner clamping columns 2 along the width direction and the distance therebetween is adjustable. More specifically, the central axes of the two outer clamping columns 3, the central axes of the other side surfaces of the two inner clamping columns 2, and the first axis are coplanar in three axes.

[0029] Specifically, as Figure 1 shown in the figure, let the central axis of the cutting disc 4 be the second axis. The second axis is spaced parallel to the first axis and the distance therebetween is adjustable. The cutting disc 4 is rotatably arranged around the second axis and is movably arranged along the first axis.

[0030] During operation, as Figure 1One end of the pipe fitting 5 shown is placed at the inner clamping column 2 and the outer clamping column 3, so that the pipe wall of the pipe fitting 5 is located between the adjacent inner clamping column 2 and the outer clamping column 3, and the pipe fitting 5 is coaxial with the first axis; move the driving plate 1 to increase the distance between the two inner clamping columns 2, and at the same time adjust the distance between the outer clamping column 3 and the inner clamping column 2, so that the cylindrical surface of the inner clamping column 2 contacts the inner wall of the pipe fitting 5 and extrudes outward, and the outer clamping column 3 contacts the outer wall of the pipe fitting 5 and extrudes inward. With such a design, the pipe fitting 5 can be clamped more stably. And since the driving plate 1 is supported between the inner clamping columns 2 inside the pipe fitting 5, the pipe fitting 5 will not be deformed during the clamping process; move the cutting disc 4 to the shearing point position of the pipe fitting 5, and adjust the distance between the second axis and the first axis, so that the cutting disc 4 contacts the shearing point of the pipe fitting 5 and applies pressure to the shearing point; rotate the driving plate 1 around the first axis, the inner clamping column 2 and the outer clamping column 3 rotate following the driving plate 1, and then drive the pipe fitting 5 to rotate around the first axis, that is, the pipe fitting 5 rotates around its own central axis. At this time, the cutting disc 4 also continuously rotates around the second axis under the rotation of the pipe fitting 5, that is, rotates around its own central axis, so as to shear the shearing point; while rotating, continuously reduce the distance between the second axis and the first axis, so that the cutting disc 4 cuts deeper and deeper until the shearing is completed; with such a design, clamping at the end of the pipe fitting 5 can adapt to the shearing of shorter pipe fittings 5, and the installation of the pipe fitting 5 is relatively convenient.

[0031] Preferably, as Figure 3 shown, a rotating head 11 is coaxially arranged outside the large end of the driving plate 1 along the first axis. The position of the rotating head 11 is fixed in the axial direction of the first axis. First mounting brackets 12 are respectively arranged outside the two side edges of the driving plate 1. First connecting rods 13 are connected between the first mounting brackets 12 and the rotating head 11. Inside the two first mounting brackets 12, a first electric lead screw 14 and a second sliding rod 15 parallel to the first axis are respectively arranged. A first mating block 16 is in threaded cooperation with the first electric lead screw 14, and a second slider 17 is in sliding cooperation with the second sliding rod 15. A connecting plate 18 is connected between the first mating block 16 and the second slider 17. The connecting plate 18 is connected to the large end of the driving plate 1. Two first mounting plates 26 are respectively arranged on the two first mounting brackets 12. The rotating head 11 is rotatably arranged around the first axis, that is, rotates around its own central axis, and is used to drive the driving plate 1 to rotate around the first axis; the first electric lead screw 14 is used to drive the driving plate 1 to move along the first axis.

[0032] Preferably, as Figure 4As shown, two first mounting brackets 12 are both connected with mounting blocks 31. The mounting blocks 31 are both connected with second connecting rods 32. The second connecting rods 32 are both connected with second mounting plates 33. On the opposite sides of the two second mounting plates 33, two first screws 34 with opposite thread directions are rotatably connected. The two first screws 34 are both parallel to the width direction. The opposite ends of the two first screws 34 are connected through a coupling 35. A first rotating motor 36 is provided on one of the second mounting plates 33. The driving shaft of the first rotating motor 36 is coaxially connected to the corresponding first screw 34. The two first screws 34 are both in threaded engagement with second engaging blocks 37. The second engaging blocks 37 are both connected with third sliders 38. A third sliding rod 39 is connected between the two second mounting plates 33 along the width direction. The third sliders 38 are both slidably sleeved on the third sliding rod 39. The two second engaging blocks 37 are both connected with first support frames 310. The two outer clamping columns 3 are respectively connected to the two first support frames 310. With such a design, the outer clamping columns 3 can follow the driving plate 1 to rotate; the first rotating motor 36 is used to drive the two first screws 34 with opposite thread directions to rotate, thereby driving the two outer clamping columns 3 to move in opposite directions, so as to simultaneously adjust the distance between the two outer clamping columns 3 and the corresponding inner clamping columns 2.

[0033] Preferably, as Figure 5 shown, the device further includes a support plate 19. The support plate 19 is fixed to the mounting surface of the device. A second rotating motor 110 and a bearing seat 111 coaxial with the first axis are provided on the support plate 19. The driving end of the second rotating motor 110 is coaxially connected with a rotating column 112. The rotating column 112 is coaxially inserted through the bearing seat 111. The rotating column 112 is coaxially connected to a rotating head 11. The second rotating motor 110 is used to drive the rotating head 11 to rotate.

[0034] Preferably, as Figure 6 and Figure 7As shown, the device further includes a second support frame 41. The second support frame 41 is fixed to the placement surface of the device. A second mounting strip 42 is provided on the second support frame 41. A driving gear 43 arranged along the first axis is rotatably connected to the second mounting strip 42. A driven sprocket 44 is coaxially connected to the driving gear 43. A driving sprocket 45 is coaxially installed on the rotating column 112. The driving sprocket 45 and the driven sprocket 44 are engaged with the same chain 46. A driven gear 47 is rotatably connected to the second mounting strip 42. The driven gear 47 meshes with the driving gear 43. A worm 48 is coaxially provided outside the driven gear 47 and the distance between them is adjustable. The worm 48 rotates following the driven gear 47. The worm 48 is engaged with a worm gear 49. A second screw rod 410 is coaxially connected to the wheel surface of the worm gear 49 facing the first axis. The second screw rod 410 is in threaded fit with a third mating block 411. A guide rod 412 parallel to the second screw rod 410 is connected to the side of the third mating block 411 facing away from the worm gear 49. The lower end of the second screw rod 410 is rotatably connected to a fixed block 413. The fixed block 413 does not rotate following the second screw rod 410. The guide rod 412 slidably passes through the fixed block 413. The lower end of the guide rod 412 is connected to a mounting rod 414 parallel to the first axis. The cutting disc 4 is coaxially and rotatably installed on the mounting rod 414. The second support frame 41 is further configured to drive the driving sprocket 45 to rotate, and drive the second screw rod 410 to rotate through the linkage relationship of the driving sprocket 45, the chain 46, the driven sprocket 44, the driving gear 43, the driven gear 47, the worm 48, and the worm gear 49, thereby driving the third mating block 411 to move, and further driving the guide rod 412 to slide on the fixed block 413 to adjust the distance between the second axis and the first axis, that is, to adjust the distance between the cutting disc 4 and the first axis.

[0035] With such a design, there is no need to separately adjust the distance between the cutting disc 4 and the first axis. By only setting a reasonable transmission ratio between the worm 48 and the worm gear 49, it is possible to drive the pipe fitting 5 to rotate and continuously adjust the distance between the cutting disc 4 and the first axis only by the second rotating motor 110, which simplifies the shearing operation and improves the shearing efficiency.

[0036] Preferably, as Figure 6 shown, a first linkage block 415 is connected to the side of the driven gear 47 facing the worm 48. The first linkage block 415 is connected with two linkage sleeves 416 arranged at intervals and in parallel, and both are parallel to the central axis of the driven gear 47. A second linkage block 417 is connected to the side of the worm 48 facing the driven gear 47. The second linkage block 417 is connected with two linkage rods 418 arranged at intervals and in parallel, and both are parallel to the worm 48. The two linkage rods 418 are respectively in sliding fit with the two linkage sleeves 416. With such a design, when the distance between the driven gear 47 and the worm 48 is adjustable, the driven gear 47 can drive the worm 48 to rotate synchronously.

[0037] Preferably, as Figure 6and Figure 7 As shown in Figure 7 , the second support frame 41 is connected with a second mounting frame 419. A second electric lead screw 420 parallel to the first axis is arranged in the second mounting frame 419. A fourth mating block 421 is in threaded engagement with the second electric lead screw 420. The fourth mating block 421 is connected with a third mounting frame 422. The third mounting frame 422 includes a first bracket, a second bracket, and a third bracket. The first bracket is connected with the fourth mating block 421. The second bracket is connected with the first bracket. The wheel surface of the worm gear 49 facing away from the first axis is rotatably connected with the second bracket. The third bracket is connected with the first bracket. A third connecting rod 423 is connected between the third bracket and the fixed block 413. The second electric lead screw 420 is used to adjust the distance between the driven gear 47 and the worm 48, so as to move the cutting disc 4 along the first axis. The second bracket is used to fix the worm gear 49. The third bracket is used to fix the fixed block 413, so that the fixed block 413 does not rotate with the second screw 410.

[0038] Preferably, as Figure 7 shown in Figure 7 , the fixed block 413 is connected with a first support bar 424. Two fourth mounting frames 425 are connected to both ends of the first support bar 424. A third electric lead screw 426 and a fourth slide bar 427 parallel to the second screw 410 are respectively arranged in the two fourth mounting frames 425. A mating strip 428 is in threaded engagement with the third electric lead screw 426. The mating strip 428 is slidably sleeved on the fourth slide bar 427. The mating strip 428 is rotatably connected with two support columns 429 parallel to the first axis on the side facing the outer clamping column 3. Both of the two support columns 429 are rotatably arranged around their own central axes. The two support columns 429 are arranged in parallel at intervals in a direction perpendicular to the second screw 410 and are spaced apart by a second predetermined distance. The distances between the two support columns 429 and the first axis are equal. With such a design, two support columns 429 are introduced to support the cutting point, improving the stability of cutting.

[0039] The above are only the preferred embodiments of the present application and are not used to limit the present application. Obviously, those skilled in the art can make various changes and deformations to the present application without departing from the spirit and scope of the present application.

Claims

1. A pipe cutting device, characterized in that, Comprising: A driving plate (1), the two side edges of which are symmetric bevel edges. Let the central axis parallel to the plate surface of the driving plate (1) be the first axis. The driving plate (1) is rotationally arranged around the first axis and is movably arranged along the first axis; Two inner clamping columns (2), a mating port (21) is provided on one side surface of each of them. The mating ports (21) of the two inner clamping columns (2) are respectively in sliding fit with the two side edges of the driving plate (1). The other side surfaces of the two inner clamping columns (2) are both cylindrical surfaces, and the central axes of the cylindrical surfaces are all parallel to the first axis. The inner clamping columns (2) are all connected with first mounting bars (22), the first mounting bars (22) are all connected with driving rods (23), the driving rods (23) are all connected with first sliders (24). A first sliding rod (25) is arranged outside the large end of the driving plate (1), and the position of the first sliding rod (25) in the axial direction of the first axis is fixed. The first sliding rod (25) rotates following the driving plate (1) and is parallel to the width direction of the driving plate (1). The first sliders (24) are all slidably sleeved on the first sliding rod (25). The two ends of the first sliding rod (25) are respectively connected with first mounting plates (26). A spring (27) is coaxially sleeved on the periphery of the first sliding rod (25), and the two ends of the spring (27) are respectively connected with the first slider (24) and the first mounting plate (26). The spring (27) is always in a compressed state; Two outer clamping columns (3), which are respectively arranged outside the two side edges of the driving plate (1) and rotate following the driving plate (1). The two outer clamping columns (3) are both cylindrical bodies. The two outer clamping columns (3) are respectively arranged at intervals parallel to the two inner clamping columns (2) along the width direction and the distance therebetween is adjustable; A cutting disc (4), let its central axis be the second axis. The second axis is spaced and parallel to the first axis and the distance therebetween is adjustable. The cutting disc (4) is rotationally arranged around the second axis and is movably arranged along the first axis.

2. The pipe cutting device according to claim 1, characterized in that, A rotating head (11) is coaxially arranged outside the large end of the driving plate (1) along the first axis, and the position of the rotating head (11) in the axial direction of the first axis is fixed. First mounting frames (12) are respectively arranged outside the two side edges of the driving plate (1). First connecting rods (13) are connected between the first mounting frames (12) and the rotating head (11). A first electric lead screw (14) and a second sliding rod (15) parallel to the first axis are respectively arranged in the two first mounting frames (12). A first mating block (16) is in threaded fit with the first electric lead screw (14), and a second slider (17) is in sliding fit with the second sliding rod (15). A connecting plate (18) is connected between the first mating block (16) and the second slider (17). The connecting plate (18) is connected to the large end of the driving plate (1). The two first mounting plates (26) are respectively arranged on the two first mounting frames (12). The rotating head (11) is rotationally arranged around the first axis.

3. The pipe cutting device according to claim 2, wherein, Both of the two first mounting brackets (12) are connected with mounting blocks (31), the mounting blocks (31) are both connected with second connecting rods (32), the second connecting rods (32) are both connected with second mounting plates (33), on the opposite surfaces of the two second mounting plates (33), two first screws (34) with reverse threads are rotatably connected, the two first screws (34) are both parallel to the width direction, the opposite ends of the two first screws (34) are connected by a coupling (35), a first rotating motor (36) is provided on one of the second mounting plates (33), the driving shaft of the first rotating motor (36) is coaxially connected with the corresponding first screw (34), the two first screws (34) are both in threaded fit with second fitting blocks (37), the second fitting blocks (37) are both connected with third sliders (38), a third sliding rod (39) is connected between the two second mounting plates (33) along the width direction, the third sliders (38) are both slidably sleeved on the third sliding rod (39), the two second fitting blocks (37) are both connected with first support frames (310), and the two outer clamping columns (3) are respectively connected with the two first support frames (310).

4. The pipe cutting device according to claim 2, wherein It further includes a support plate (19), the support plate (19) is fixed on the installation surface of the device, a second rotating motor (110) and a bearing seat (111) coaxial with the first axis are provided on the support plate (19), the driving end of the second rotating motor (110) is coaxially connected with a rotating column (112), the rotating column (112) is coaxially inserted through the bearing seat (111), and the rotating column (112) is coaxially connected with a rotating head (11).

5. The pipe cutting device according to claim 4, characterized in that, It further includes a second support frame (41), the second support frame (41) is fixed on the placement surface of the device, a second mounting strip (42) is provided on the second support frame (41), a driving gear (43) arranged along the first axis is rotatably connected on the second mounting strip (42), the driving gear (43) is coaxially connected with a driven sprocket (44), a driving sprocket (45) is coaxially installed on the rotating column (112), the driving sprocket (45) and the driven sprocket (44) are fitted with the same chain (46), a driven gear (47) is rotatably connected on the second mounting strip (42), the driven gear (47) is meshed with the driving gear (43), a worm (48) is coaxially arranged outside the driven gear (47) and the distance between them is adjustable, the worm (48) rotates following the driven gear (47), the worm (48) is fitted with a worm gear (49), the wheel surface of the worm gear (49) facing the first axis is coaxially connected with a second screw (410), the second screw (410) is in threaded fit with a third fitting block (411), the surface of the third fitting block (411) facing away from the worm gear (49) is connected with a guide rod (412) parallel to the second screw (410), the lower end of the second screw (410) is rotatably connected with a fixed block (413), the fixed block (413) does not rotate following the second screw (410), the guide rod (412) is slidably inserted through the fixed block (413), and the lower end of the guide rod (412) is connected with a mounting rod (414) parallel to the first axis, and the cutting disc (4) is coaxially and rotatably installed on the mounting rod (414).

6. The pipe cutting device according to claim 5, characterized in that, One side of the driven gear (47) facing the worm (48) is connected with a first linkage block (415). The first linkage block (415) is connected with two linkage sleeves (416) which are arranged in parallel at intervals and are both parallel to the central axis of the driven gear (47). One side of the worm (48) facing the driven gear (47) is connected with a second linkage block (417). The second linkage block (417) is connected with two linkage rods (418) which are arranged in parallel at intervals and are both parallel to the worm (48). The two linkage rods (418) are respectively in sliding fit with the two linkage sleeves (416).

7. The pipe cutting device according to claim 5, characterized in that, The second support frame (41) is connected with a second mounting frame (419). A second electric lead screw (420) parallel to the first axis is arranged in the second mounting frame (419). The second electric lead screw (420) is in threaded fit with a fourth fitting block (421). The fourth fitting block (421) is connected with a third mounting frame (422). The third mounting frame (422) includes a first bracket, a second bracket and a third bracket. The first bracket is connected with the fourth fitting block (421). The second bracket is connected with the first bracket. The wheel surface of the worm gear (49) facing away from the first axis is rotatably connected with the second bracket. The third bracket is connected with the first bracket. A third connecting rod (423) is connected between the third bracket and the fixed block (413).

8. The pipe cutting device according to claim 5, wherein The fixed block (413) is connected with a first support bar (424). Two fourth mounting frames (425) are connected to both ends of the first support bar (424). A third electric lead screw (426) and a fourth sliding rod (427) parallel to the second screw rod (410) are respectively arranged in the two fourth mounting frames (425). The third electric lead screw (426) is in threaded fit with a fitting strip (428). The fitting strip (428) is slidably sleeved on the fourth sliding rod (427). One side of the fitting strip (428) facing the outer clamping column (3) is rotatably connected with two support columns (429) parallel to the first axis. The two support columns (429) are both rotatably arranged around their own central axes. The two support columns (429) are arranged in parallel at intervals in a direction perpendicular to the second screw rod (410) and are spaced apart by a second predetermined distance. The distances between the two support columns (429) and the first axis are equal.

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