Pipe cutting machine

Abstract

The utility model provides a pipe cutting machine which comprises a rack, a bearing mechanism, a positioning mechanism, a cutting mechanism and a dust collection mechanism, and the bearing mechanism comprises a motor, a motor shaft, a transmission assembly and a roller shaft assembly; the positioning mechanism comprises a lifting sliding table, a lifting plate, a bearing seat, a rotating shaft and a positioning disc; the cutting mechanism comprises a first moving module, a supporting frame, a second moving module, a mounting base, a cutting motor and a cutting blade, the cutting motor is in driving connection with the cutting blade, and a cooling assembly is arranged at the cutting blade; the dust collection mechanism is arranged on the supporting frame. The supporting mechanism and the positioning mechanism can support and position quartz tubes with different sizes, so that the compatibility of equipment is improved; the cutting blade can move in the multi-degree-of-freedom direction, positioning cutting and flexible cutting can be conducted, the cutting precision is guaranteed, and the cutting quality is improved; and during cutting, water spraying cooling and dust removal can be carried out, so that the service life of equipment is prolonged, and pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz tube processing, in particular to a tube cutting machine. Background Art

[0002] In the photovoltaic and semiconductor industries, high-temperature diffusion furnaces are used in conjunction with the quartz tubes inside them to complete the diffusion process of doping silicon wafers to form PN junctions. During the diffusion process, the silicon wafer to be diffused is placed in the quartz tube, which is pushed into the cavity of the diffusion furnace. The diffusion furnace is heated to heat it, and the process gas is used to dope the silicon wafer, thereby changing and controlling the type, concentration and distribution of impurities in the semiconductor, so as to establish different electrical characteristic areas.

[0003] Quartz tube cutting is an important process in quartz tube processing. In some current quartz tube cutting machines, the cutting blade is fixed and the cutting of quartz tubes of different lengths is achieved by moving the quartz tube. There are cutting errors and it is difficult to ensure cutting accuracy. The compatibility with quartz tubes of different sizes is poor. At the same time, a large amount of dust is generated during cutting, which can easily cause environmental pollution. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a tube cutting machine, which ensures cutting accuracy, improves cutting quality, and improves the compatibility of the equipment with quartz tubes of different sizes. Water spray cooling and dust removal are performed during cutting to reduce pollution.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pipe cutting machine comprises a frame and a supporting mechanism, a positioning mechanism and a cutting mechanism arranged on the frame.

[0007] The supporting mechanism includes a first motor, a first motor shaft, a first transmission assembly and a roller shaft assembly, the first motor is arranged on the frame, and the first motor is driven and connected to the first motor shaft; the roller shaft assembly includes a first roller shaft and a second roller shaft, the first roller shaft and the second roller shaft are parallel to each other and are rotatably arranged on the frame respectively, the first motor shaft is connected to the first roller shaft or the second roller shaft through the first transmission assembly; a plurality of first rollers are respectively arranged on the first roller shaft and the second roller shaft.

[0008] The positioning mechanism includes a lifting slide, a lifting plate, a bearing seat, a rotating shaft and a positioning plate. The lifting slide is arranged at one end of the supporting mechanism in the vertical direction. The lifting plate can be movably arranged on the lifting slide in the vertical direction. The bearing seat is arranged on the lifting plate. The rotating shaft is rotatably arranged in the bearing seat. The positioning plate is coaxially connected to the rotating shaft, and the positioning plate faces the supporting mechanism.

[0009] The cutting mechanism includes a first movable module, a support frame, a second movable module, a mounting seat, a cutting motor and a cutting blade. The first movable module is arranged on the frame along the length direction of the frame, the support frame is movably arranged on the first movable module, the second movable module is arranged on the support frame along the vertical direction, the mounting seat is movably arranged on the second movable module along the vertical direction, the cutting motor is arranged on the mounting seat, and the cutting motor drives and connects to the cutting blade.

[0010] Preferably, the supporting mechanism also includes a second motor, a second motor shaft and a second transmission assembly, the roller shaft assembly also includes a third roller shaft and a fourth roller shaft, the second motor is arranged on the frame, and the second motor drive is connected to the second motor shaft; the third roller shaft and the fourth roller shaft are respectively rotatably arranged on the frame, and the third roller shaft and the fourth roller shaft are arranged parallel to each other between the first roller shaft and the second roller shaft, and the second motor shaft is connected to the third roller shaft or the fourth roller shaft through the second transmission assembly; a plurality of second rollers are respectively arranged on the third roller shaft and the fourth roller shaft, and the diameter of the second roller is smaller than the diameter of the first roller.

[0011] Preferably, the roller shaft assembly is provided with two groups, and the first motor and the second motor are respectively arranged between the two groups of roller shaft assemblies.

[0012] Preferably, a scale is provided on the lifting slide in the vertical direction, and a pointer is correspondingly provided on the lifting plate, and the pointer faces the side where the scale is located.

[0013] Preferably, the positioning plate is made of graphite.

[0014] Preferably, the mounting base includes a first mounting frame, a third movable module and a second mounting frame, the first mounting frame can be movably arranged on the second movable module in the vertical direction, the third movable module is arranged on the first mounting frame along the width direction of the frame, the second mounting frame can be movably arranged on the third movable module, and the cutting motor is arranged on the second mounting frame.

[0015] Preferably, the mounting base further includes an accordion cover, and the accordion cover is arranged on the third movable module.

[0016] Preferably, the cutting mechanism also includes a third transmission assembly, which includes a first transmission wheel, a second transmission wheel and a transmission belt, the first transmission wheel is connected to the output shaft of the cutting motor, the second transmission wheel is rotatably disposed on the second mounting frame, the second transmission wheel is coaxially connected to the cutting blade, the central axis of the first transmission wheel is parallel to the central axis of the second transmission wheel, and the transmission belt is sleeved on the first transmission wheel and the second transmission wheel.

[0017] Preferably, the cutting mechanism also includes a cutting shield and a cooling assembly, wherein the cutting shield is arranged on the second mounting bracket and the shield is arranged above the cutting blade; the cooling assembly includes a three-way valve and two water spray pipes, wherein the three-way valve is arranged on the cutting shield, and the three-way valve has an inlet end and two outlet ends, wherein the inlet end of the three-way valve is used to connect a cooling water pipe, and the two outlet ends of the three-way valve are respectively connected to two water spray pipes, and a non-right angle is formed between the central axis of the two water spray pipes and the central axis of the cutting blade.

[0018] Preferably, the pipe cutting machine further comprises a dust suction mechanism, which comprises a dust collector and a dust suction pipe, wherein the dust collector is arranged on the support frame, one end of the dust suction pipe is connected to the dust collector, and the other end faces the cutting blade.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: in the tube cutting machine of the utility model, the supporting mechanism and the positioning mechanism can support and position quartz tubes of different sizes, thereby improving the compatibility of the equipment; the cutting blade can move in multiple degrees of freedom, and can perform positioning cutting and flexible cutting, ensuring cutting accuracy and improving cutting quality; water spray cooling and dust removal can also be performed during cutting, thereby extending the service life of the equipment and reducing pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic structural diagram of a tube cutting machine and a quartz tube according to an embodiment of the utility model.

[0021] Figure 2 It is a structural schematic diagram of a pipe cutting machine according to an embodiment of the utility model.

[0022] Figure 3 It is a structural schematic diagram of a supporting mechanism in one embodiment of the utility model.

[0023] Figure 4 It is a structural schematic diagram of a roller shaft assembly in one embodiment of the utility model.

[0024] Figure 5 It is a structural schematic diagram of a positioning mechanism in one embodiment of the utility model.

[0025] Figure 6It is a structural schematic diagram of the positioning mechanism in one embodiment of the utility model from another perspective.

[0026] Figure 7 It is a schematic structural diagram of a cutting mechanism and a dust collecting mechanism in one embodiment of the utility model.

[0027] Figure 8 It is a schematic structural diagram of a support frame and its upper components in one embodiment of the utility model.

[0028] Fig. 9 It is a schematic structural diagram of a mounting base and its upper components in a first viewing angle in one embodiment of the utility model.

[0029] Fig.10 It is a schematic structural diagram of a mounting base and its upper components in an embodiment of the utility model at a second viewing angle.

[0030] Fig.11 It is a schematic structural diagram of a mounting base and its upper components in an embodiment of the utility model at a third viewing angle.

[0031] Fig.12 It is a schematic diagram of the split structure of the third mobile module in one embodiment of the utility model.

[0032] Fig.13 It is a schematic structural diagram of the cutting blade in one embodiment of the utility model.

[0033] In the figure, 100-pipe cutting machine, 200-quartz tube, 10-frame, 20-supporting mechanism, 21-first motor, 22-first motor shaft, 23-first transmission assembly, 24-roller shaft assembly, 241-first roller shaft, 2411-first roller, 242-second roller shaft, 243-third roller shaft, 2431-second roller, 244-fourth roller shaft, 25-second motor, 26-second motor shaft, 27-second transmission assembly; 30-positioning mechanism, 31-lifting slide, 311-scale, 32-lifting plate, 321-pointer, 33-bearing seat, 34-rotating shaft , 35-positioning plate; 40-cutting mechanism, 41-first movable module, 42-support frame, 43-second movable module, 44-mounting seat, 441-first mounting frame, 442-third movable module, 4421-screw guide rail, 4422-slide seat, 443-second mounting frame, 444-accordion cover, 45-cutting motor, 46-cutting blade, 47-third transmission assembly, 471-first transmission wheel, 472-second transmission wheel, 473-transmission belt, 48-cutting shield, 49-cooling assembly, 491-three-way valve, 492-water spray pipe; 50-dust suction mechanism, 51-vacuum cleaner. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model. It can be understood that some technical means of the various embodiments described herein can be replaced or combined with each other without conflict.

[0035] In the description of the present invention, if there are terms such as "first", "second", etc., they are only used to distinguish the objects described, and do not have any order or technical meaning. Therefore, the objects defined as "first", "second", etc. may explicitly or implicitly include one or more of the objects. Moreover, "one" or "a" and similar words do not indicate a quantity limitation, but indicate the existence of at least one, and "multiple" means not less than two.

[0036] In the description of the utility model specification, reference to "one embodiment" or "some embodiments" etc. means that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in the specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0037] Please refer to Figures 1 to 13 The utility model provides a tube cutting machine 100, which includes a frame 10 and a supporting mechanism 20, a positioning mechanism 30 and a cutting mechanism 40 arranged on the frame 10. The supporting mechanism 20 is used to support the quartz tube 200 and drive the quartz tube 200 to rotate, the positioning mechanism 30 is used to position the end of the quartz tube 200 to ensure cutting accuracy; the cutting mechanism 40 is used to position and cut the quartz tube 200 according to a set length.

[0038] It should be noted that the following X direction corresponds to Figure 1 The middle pipe cutting machine 100 is in the length direction / left-right direction, the Y direction corresponds to the width direction / front-back direction of the pipe cutting machine 100, the Z direction is the vertical direction / height direction of the pipe cutting machine 100, and the X, Y, and Z directions are perpendicular to each other.

[0039] Specifically, refer to Figure 3 and Figure 4The supporting mechanism 20 includes a first motor 21, a first motor shaft 22, a first transmission assembly 23 and a roller shaft assembly 24. The first motor 21 is arranged on the frame 10, and the first motor 21 is driven to connect the first motor shaft 22. The roller shaft assembly 24 includes a first roller shaft 241 and a second roller shaft 242. The first roller shaft 241 and the second roller shaft 242 are parallel to each other and rotatably arranged on the frame 10. The first roller shaft 241 and the second roller shaft 242 are both arranged along the X direction. The first motor shaft 22 is connected to the first roller shaft 241 or the second roller shaft 242 through the first transmission assembly 23. In one embodiment, the first motor shaft 22 is connected to the first roller shaft 241 through the first transmission assembly 23. A plurality of first rollers 2411 are respectively arranged on the first roller shaft 241 and the second roller shaft 242. In application, the quartz tube is placed between the first roller shaft 241 and the second roller shaft 242, the first rollers 2411 on both sides are in contact with the quartz tube, the central axis of the quartz tube is parallel to the X direction, the first motor 21 is used to drive the first motor shaft 22 to rotate, the first motor shaft 22 drives the first roller shaft 241 to rotate through the first transmission assembly 23, and the first roller 2411 drives the quartz tube to rotate, so as to facilitate the rapid cutting of the quartz tube. The first roller shaft 241 and the second roller shaft 242 can support different types of quartz tubes within a certain diameter range, thereby improving compatibility.

[0040] Among them, the first roller shaft 241 and the second roller shaft 242 can be installed through the bearing seat respectively to ensure the rotatability of the two; the length of the first roller shaft 241 and the second roller shaft 242 and the number of the first roller 2411 can be reasonably set according to the actual situation to match the quartz tubes of different lengths and diameters; the first motor 21 can use a commercially available motor product. The first transmission component 23 can use a pulley transmission component, a gear transmission component or other suitable transmission components. When the first transmission component 23 uses a pulley transmission component, the first motor shaft 22 and the first roller shaft 241 are coaxially arranged with transmission wheels, and the two transmission wheels are connected by a belt; when the first transmission component 23 uses a gear transmission component, the first motor shaft 22 and the first roller shaft 241 are coaxially arranged with transmission gears, and the two transmission gears are meshed with each other.

[0041] Reference Figure 5 and Figure 6The positioning mechanism 30 includes a lifting slide 31, a lifting plate 32, a bearing seat 33, a rotating shaft 34 and a positioning plate 35. The lifting slide 31 is arranged at one end of the supporting mechanism 20 along the vertical direction Z. The lifting plate 32 can be movably arranged on the lifting slide 31 along the vertical direction Z. The bearing seat 33 is arranged on the lifting plate 32. The rotating shaft 34 is rotatably arranged in the bearing seat 33. The central axis of the rotating shaft 34 is parallel to the X direction. The positioning plate 35 is coaxially connected to the rotating shaft 34, and the positioning plate 35 faces the supporting mechanism 20. In the application, the quartz tube is placed on the supporting mechanism 20, and one end of the quartz tube is close to the positioning plate 35. The positioning plate 35 can position the quartz tube to ensure the subsequent cutting accuracy; when the quartz tube rotates, the positioning plate 35 can rotate synchronously; at the same time, the center height of the positioning plate 35 is adjusted by adjusting the height of the lifting plate 32 on the lifting slide 31, so that the positioning plate 35 is coaxial with the quartz tube, so that the positioning plate 35 can be used to position quartz tubes of different sizes to improve compatibility. Among them, the lifting slide 31 can adopt a commercially available electric slide or manual slide product, and its structure and working principle belong to the existing technology and will not be repeated here.

[0042] Reference Figures 7 to 13 The cutting mechanism 40 includes a first movable module 41, a support frame 42, a second movable module 43, a mounting seat 44, a cutting motor 45 and a cutting blade 46. The first movable module 41 is arranged on the frame 10 along the length direction of the frame 10, that is, the first movable module 41 is arranged along the X direction, the support frame 42 is movably arranged on the first movable module 41, the second movable module 43 is arranged on the support frame 42 along the vertical direction Z, the mounting seat 44 is movably arranged on the second movable module 43 along the vertical direction X, and the cutting motor 45 is arranged on the mounting seat 44. The cutting motor 45 drives the connected cutting blade 46, and the central axis of the cutting blade 46 is parallel to the X direction. The first moving module 41 is used to drive the support frame 42 and its upper components to move along the X direction, so as to adjust the position of the cutting blade 46 in the X direction; the second moving module 43 is used to drive the mounting seat 44 and its upper components to move along the Z direction, so as to adjust the position of the cutting blade 46 in the Z direction, and the cutting motor 45 is used to drive the cutting blade 46 to rotate, so as to cut the quartz tube according to the set length. By adjusting the position of the cutting blade 46 by the first moving module 41 and the second moving module 43, the positioning accuracy can be ensured and the cutting quality can be improved.

[0043] Among them, the first movable module 41 and the second movable module 43 can respectively adopt commercially available linear movable module products, such as ball screw guide module, electric cylinder, pneumatic cylinder and other products, which can respectively realize the movement control of the support frame 42 along the X direction and the movement control of the mounting seat 44 along the Z direction; the cutting motor 45 can adopt commercially available motor products; the structure and working principle of these products belong to the existing technology and will not be repeated here.

[0044] In the application of the above-mentioned tube cutting machine, the quartz tube 200 is placed on the roller shaft assembly 24, and the height of the positioning plate 35 is adjusted according to the size of the quartz tube 200, so that the quartz tube 200 is coaxial with the positioning plate 35, and one end of the quartz tube 200 is close to the positioning plate 35; then, the first motor 21 is used to drive the first motor shaft 22 to rotate, and the first motor shaft 22 drives the first roller shaft 241 to rotate through the first transmission assembly 23, so that the quartz tube 200 is driven to rotate by the first roller 2411; thereafter, according to the set cutting length, the first moving module 41 drives the cutting blade 46 to move to the set position in the X direction, and according to the size of the quartz tube 200, the second moving module 43 drives the cutting blade 46 to move to the appropriate position in the Z direction. At the same time, the cutting motor 45 drives the cutting blade 46 to rotate, and the cutting blade 46 can quickly and accurately cut the rotating quartz tube 200. The supporting mechanism 20 and the positioning mechanism 30 can support and position quartz tubes of different sizes, thereby improving the compatibility of the equipment; the cutting blade 46 can move in multiple degrees of freedom, and can perform positioning cutting and flexible cutting, ensuring cutting accuracy and improving cutting quality.

[0045] Reference Figure 3 and Figure 4 In some embodiments, the supporting mechanism 20 further includes a second motor 25, a second motor shaft 26 and a second transmission assembly 27, the roller shaft assembly 24 further includes a third roller shaft 243 and a fourth roller shaft 244, the second motor 25 is disposed on the frame 10, and the second motor 25 is drivingly connected to the second motor shaft 26. The third roller shaft 243 and the fourth roller shaft 244 are rotatably disposed on the frame 10, and the third roller shaft 243 and the fourth roller shaft 244 are disposed parallel to each other between the first roller shaft 241 and the second roller shaft 242, the third roller shaft 243 and the fourth roller shaft 244 are disposed along the X direction, and the second motor shaft 26 is connected to the third roller shaft 243 or the fourth roller shaft 244 through the second transmission assembly 27. In one embodiment, the second motor shaft 26 is connected to the fourth roller shaft 244 through the second transmission assembly 27. A plurality of second rollers 2431 are respectively disposed on the third roller shaft 243 and the fourth roller shaft 244 . The diameter of the second roller 2431 is smaller than that of the first roller 2411 .

[0046] It should be understood that the distance between the first roller shaft 241 and the second roller shaft 242 is greater than the distance between the third roller shaft 243 and the fourth roller shaft 244. The first roller shaft 241 and the second roller shaft 242 can be used to support quartz tubes with a larger size range (such as a diameter of 350mm to 680mm), and the third roller shaft 243 and the fourth roller shaft 244 can be used to support quartz tubes with a smaller size range (such as a diameter of 200mm to 350mm). At the same time, the center height of the positioning plate 35 can be flexibly adjusted according to the diameter of the quartz tube, thereby further improving the compatibility of the equipment.

[0047] In the cutting process of quartz tubes in a smaller size range, the quartz tube is placed between the third roller shaft 243 and the fourth roller shaft 244, the second rollers 2431 on both sides are in contact with the quartz tube, the central axis of the quartz tube is parallel to the X direction, the second motor 25 is used to drive the second motor shaft 26 to rotate, the second motor shaft 26 drives the fourth roller shaft 244 to rotate through the second transmission assembly 27, and the second roller 2431 drives the quartz tube to rotate, so as to facilitate the rapid cutting of the quartz tube.

[0048] Among them, the third roller shaft 243 and the fourth roller shaft 244 can be installed through the bearing seat respectively to ensure the rotatability of the two; the length of the third roller shaft 243 and the fourth roller shaft 244 and the number of the second roller 2431 can be reasonably set according to the actual situation to match the quartz tubes of different lengths and diameters; the second motor 25 can use commercially available motor products. The second transmission assembly 27 can use a pulley transmission assembly, a gear transmission assembly or other suitable transmission assemblies. When the second transmission assembly 27 uses a pulley transmission assembly, the second motor shaft 26 and the fourth roller shaft 244 are coaxially arranged with transmission wheels, and the two transmission wheels are connected by a belt; when the second transmission assembly 27 uses a gear transmission assembly, the second motor shaft 26 and the fourth roller shaft 244 are coaxially arranged with transmission gears, and the two transmission gears are meshed with each other.

[0049] like Figure 3 As shown, in some preferred embodiments, there are two groups of roller shaft assemblies 24, the two groups of roller shaft assemblies 24 are symmetrically arranged, the first motor 21 and the second motor 25 are respectively arranged between the two groups of roller shaft assemblies 24, the first motor 21 and the second motor 25 are staggered, and the first motor shaft 22 and the second motor shaft 26 are arranged in parallel. The first motor shaft 22 can be connected to the first roller shaft 241 or the second roller shaft 242 in the two groups of roller shaft assemblies 24 at the same time, or only to the first roller shaft 241 or the second roller shaft 242 in one group of roller shaft assemblies 24; the second motor shaft 26 can be connected to the third roller shaft 243 or the fourth roller shaft 244 in the two groups of roller shaft assemblies 24 at the same time, or only to the third roller shaft 243 or the fourth roller shaft 244 in one group of roller shaft assemblies 24.

[0050] like Figure 6 As shown, in some embodiments, a scale 311 is provided on the lifting slide 31 along the vertical direction (Z direction), and a pointer 321 is correspondingly provided on the lifting plate 32, and the pointer 321 faces the side where the scale 311 is located. Through the cooperation between the scale 311 and the pointer 321, the height of the positioning plate 35 can be better controlled and adjusted, and the positioning accuracy of the quartz tube can be improved.

[0051] In some embodiments, the positioning plate 35 may be made of graphite, which has properties such as high temperature resistance and a long service life.

[0052] Reference Figures 9 to 12 In some preferred embodiments, the mounting base 44 includes a first mounting frame 441, a third movable module 442 and a second mounting frame 443. The first mounting frame 441 is movably arranged on the second movable module 43 along the vertical direction (Z direction), the third movable module 442 is arranged on the first mounting frame 441 along the width direction (Y direction) of the frame 10, the second mounting frame 443 is movably arranged on the third movable module 442, and the cutting motor 45 is arranged on the second mounting frame 443. The third movable module 442 is used to drive the second mounting frame 443 to move along the Y direction, drive the cutting motor 45 and the cutting blade 46 to move synchronously, thereby adjusting the position of the cutting blade 46 in the Y direction to ensure the cutting effect and cutting efficiency.

[0053] The third moving module 442 can be a commercially available linear moving module product, such as a ball screw guide module, an electric cylinder, a pneumatic cylinder, etc., which can realize the movement control of the second mounting frame along the Y direction. The structure and working principle of these products belong to the prior art and will not be repeated here.

[0054] Combined with reference Fig.11 and Fig.12 In some embodiments, the third movable module 442 adopts a ball screw guide module product, which includes a screw guide 4421 and a slide 4422. The slide 4422 is movably arranged on the screw guide 4421, and the second mounting frame 443 is fixedly connected to the slide 4422. Further, the mounting seat 44 also includes an accordion cover 444, which is arranged on the third movable module 442 and located on both sides of the slide 4422. The accordion cover 444 is used to protect the third movable module 442 and improve its waterproof and dustproof performance. The accordion cover 443 has a retractable performance. During the movement of the slide 4422, the accordion covers 444 on both sides are shortened or extended accordingly.

[0055] Reference Fig.11In some embodiments, the second mounting frame 443 is configured as a hollow square frame structure, the first mounting frame 441 is inserted into the second mounting frame 443, the third movable module 442 is disposed on the first mounting frame 441, the top of the second mounting frame 443 is connected to the slide 4422 in the third movable module 442, and when the slide 4422 moves along the screw guide rail 4421, the second mounting frame 443 and its upper components can be driven to move. Further, the cutting mechanism 40 further includes a third transmission assembly 47, a cutting motor 45 is disposed at the top of the second mounting frame 443, and the third transmission assembly 47 and the cutting blade 46 correspond to the side of the second mounting frame 443, respectively. Specifically, the third transmission assembly 47 includes a first transmission wheel 471, a second transmission wheel 472 and a transmission belt 473. The first transmission wheel 471 is connected to the output shaft of the cutting motor 45, the second transmission wheel 472 is rotatably arranged on the second mounting frame 473, the second transmission wheel 472 is coaxially connected to the cutting blade 46, the connecting shaft between the second transmission wheel 472 and the cutting blade 46 is rotatably arranged on the bottom side of the second mounting frame 443, the central axis of the first transmission wheel 471 is parallel to the central axis of the second transmission wheel 472, and the transmission belt 473 is sleeved on the first transmission wheel 471 and the second transmission wheel 472. When the cutting motor 45 is running, the first transmission wheel 471 is driven to rotate, and the second transmission wheel 472 is driven to rotate through the transmission belt 473, and the second transmission wheel 472 then drives the cutting blade 46 to rotate through the connecting shaft. In this way, the cutting mechanism 40 has a compact overall structure, a higher space utilization rate, a smaller volume, and is convenient for cutting operations.

[0056] Reference Fig. 9 and Fig.13 In other embodiments, the cutting mechanism 40 further includes a cutting shield 48 and a cooling assembly 49. The cutting shield 48 is disposed on the second mounting frame 443 and the shield is disposed above the cutting blade 46. The cutting shield 48 plays a protective role, which can reduce the occurrence of safety accidents. At the same time, it can also prevent the dust generated during cutting from spreading outward to a certain extent, thereby reducing pollution. The cooling assembly 49 includes a three-way valve 491 and two water spray pipes 492. The three-way valve 491 is disposed on the cutting shield 48. The three-way valve 491 has an inlet end and two outlet ends. The inlet end of the three-way valve 491 is used to connect a cooling water pipe (not shown in the figure). The two outlet ends of the three-way valve 491 are respectively connected to two water spray pipes 492. Multiple water outlets are disposed on the two water spray pipes 492, which are used to spray cooling water toward the cutting blade 46. On the one hand, the cutting blade 46 can be cooled to extend the life of the equipment. On the other hand, it can also suppress the diffusion of part of the dust and reduce pollution.

[0057] Furthermore, there is a non-right angle between the central axis of the two water spray pipes 492 and the central axis of the cutting blade 46, so that the spraying range of the two water spray pipes 492 can cover as much area around the cutting blade 46 as possible, thereby improving the cooling effect on the cutting blade 46 and the dust suppression effect.

[0058] Reference Figure 8 In some other embodiments, the pipe cutting machine 100 further includes a dust collecting mechanism 50, which includes a dust collector 51 and a dust collecting pipe (not shown in the figure), the dust collector 51 is arranged on the support frame 42, one end of the dust collecting pipe is connected to the dust collector 51, and the other end faces the cutting blade 46. During specific installation, the other end of the dust collecting pipe can be fixed on the second mounting frame 443 and faces the cutting blade 46, so that the dust generated during cutting can be absorbed to reduce environmental pollution.

[0059] In the tube cutting machine of the utility model, the supporting mechanism and the positioning mechanism can support and position quartz tubes of different sizes, thereby improving the compatibility of the equipment; the cutting blade can move in multiple directions of freedom, and can perform positioning cutting and flexible cutting, thereby ensuring cutting accuracy and improving cutting quality; water spray cooling and dust removal can also be performed during cutting, thereby extending the service life of the equipment and reducing pollution.

[0060] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A pipe cutting machine, characterized in that: It comprises a frame and a supporting mechanism, a positioning mechanism and a cutting mechanism arranged on the frame; The supporting mechanism comprises a first motor, a first motor shaft, a first transmission assembly and a roller shaft assembly, wherein the first motor is arranged on the frame, and the first motor is drivingly connected to the first motor shaft; the roller shaft assembly comprises a first roller shaft and a second roller shaft, the first roller shaft and the second roller shaft are parallel to each other and are rotatably arranged on the frame respectively, and the first motor shaft is connected to the first roller shaft or the second roller shaft through the first transmission assembly; a plurality of first rollers are respectively arranged on the first roller shaft and the second roller shaft; The positioning mechanism includes a lifting slide, a lifting plate, a bearing seat, a rotating shaft and a positioning plate. The lifting slide is arranged at one end of the supporting mechanism in the vertical direction. The lifting plate is movably arranged on the lifting slide in the vertical direction. The bearing seat is arranged on the lifting plate. The rotating shaft is rotatably arranged in the bearing seat. The positioning plate is coaxially connected with the rotating shaft, and the positioning plate faces the supporting mechanism. The cutting mechanism includes a first movable module, a support frame, a second movable module, a mounting seat, a cutting motor and a cutting blade. The first movable module is arranged on the frame along the length direction of the frame, the support frame is movably arranged on the first movable module, the second movable module is arranged on the support frame along the vertical direction, the mounting seat is movably arranged on the second movable module along the vertical direction, the cutting motor is arranged on the mounting seat, and the cutting motor drives and connects to the cutting blade.

2. The pipe cutting machine according to claim 1, characterized in that: The supporting mechanism also includes a second motor, a second motor shaft and a second transmission assembly, and the roller shaft assembly also includes a third roller shaft and a fourth roller shaft, the second motor is arranged on the frame, and the second motor is driven and connected to the second motor shaft; the third roller shaft and the fourth roller shaft are respectively rotatably arranged on the frame, and the third roller shaft and the fourth roller shaft are arranged parallel to each other between the first roller shaft and the second roller shaft, and the second motor shaft is connected to the third roller shaft or the fourth roller shaft through the second transmission assembly; a plurality of second rollers are respectively arranged on the third roller shaft and the fourth roller shaft, and the diameter of the second roller is smaller than the diameter of the first roller.

3. The pipe cutting machine according to claim 2, characterized in that: The roller shaft components are provided with two groups, and the first motor and the second motor are respectively provided between the two groups of roller shaft components.

4. The pipe cutting machine according to claim 1, characterized in that: The lifting slide is provided with a scale in the vertical direction, and the lifting plate is correspondingly provided with a pointer, and the pointer faces the side where the scale is located.

5. The pipe cutting machine according to claim 1, characterized in that: The positioning plate is made of graphite.

6. The pipe cutting machine according to claim 1, characterized in that: The mounting base includes a first mounting frame, a third movable module and a second mounting frame. The first mounting frame can be movably arranged on the second movable module in a vertical direction, the third movable module is arranged on the first mounting frame along the width direction of the frame, the second mounting frame can be movably arranged on the third movable module, and the cutting motor is arranged on the second mounting frame.

7. The pipe cutting machine according to claim 6, characterized in that: The mounting seat further comprises an accordion cover, and the accordion cover is arranged on the third movable module.

8. The pipe cutting machine according to claim 6, characterized in that: The cutting mechanism also includes a third transmission assembly, which includes a first transmission wheel, a second transmission wheel and a transmission belt. The first transmission wheel is connected to the output shaft of the cutting motor, the second transmission wheel is rotatably disposed on the second mounting frame, the second transmission wheel is coaxially connected to the cutting blade, the central axis of the first transmission wheel is parallel to the central axis of the second transmission wheel, and the transmission belt is sleeved on the first transmission wheel and the second transmission wheel.

9. The pipe cutting machine according to claim 6, characterized in that: The cutting mechanism also includes a cutting shield and a cooling assembly, wherein the cutting shield is arranged on the second mounting frame and the shield is arranged above the cutting blade; the cooling assembly includes a three-way valve and two water spray pipes, wherein the three-way valve is arranged on the cutting shield, and the three-way valve has an inlet end and two outlet ends, wherein the inlet end of the three-way valve is used to connect to a cooling water pipe, and the two outlet ends of the three-way valve are respectively connected to two water spray pipes, and a non-right angle is formed between the central axis of the two water spray pipes and the central axis of the cutting blade.

10. The pipe cutting machine according to any one of claims 1 to 9, characterized in that: The pipe cutting machine also includes a dust suction mechanism, which includes a dust collector and a dust suction pipe. The dust collector is arranged on the support frame, one end of the dust suction pipe is connected to the dust collector, and the other end faces the cutting blade.

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