A slender tube axial cutting device and cutting method

Abstract

The present invention provides an axial cutting device and a cutting method for a slender tube, and relates to the technical field of cold processing of slender tubes. The axial cutting device for a slender tube comprises a cutting device, a supporting device, and a clamping device, wherein the cutting device is used to cut and process the surface of one end of the slender tube; the supporting device is used to support the middle part of the slender tube when the cutting device is cutting, the clamping device is used to clamp one end of a plurality of slender tubes away from the cutting device, and drive the slender tubes to rotate, the clamping device is movably arranged relative to the cutting device, thereby driving the slender tubes to move axially, so that the cutting device can sequentially cut and process the surface of the slender tube, the clamping device comprises a driving member, a transmission group, and a clamping part, the driving member is connected to the transmission group, the clamping part is connected to the transmission group, the clamping part is used to clamp the slender tube, and the transmission group is used to transmit under the drive of the driving member; it can avoid the phenomenon of shaking of the slender tube during the cutting process, and ensure the cutting accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of cold processing of slender tubes, and in particular to a slender tube axial cutting device and a cutting method. Background Art

[0002] In today's industrial manufacturing field, slender tubes are widely used as basic materials after axial processing on the surface of the tubes in aerospace, mechanical engineering, oil and gas, medical equipment and other industries. Its unique geometric characteristics - large aspect ratio and high precision requirements, generally require axial dimension cutting accuracy within ±3 microns, which makes the processing process face a series of technical challenges.

[0003] Although the slender tubes in the prior art are generally made of hard materials, such as metal or alloy materials, their length direction is relatively soft due to their large aspect ratio, that is, they are easy to bend and deform elastically in the length direction, and radial cutting requires high precision. If the cutting precision is not enough, it will not meet the physical performance requirements of the fields of aerospace, mechanical engineering, medical equipment, etc., such as poor transmission signal, or irregular cut marks leading to reduced product yield and service life. Tube products are preferably processed mechanically. Due to the above reasons, the prior art generally cannot use the method of feeding at one end and cutting at the other end for processing, because it is difficult to accurately feed the slender and soft tube in the radial direction. If the feed control is not appropriate, it will cause shaking during processing. In addition, due to the requirements of axial processing, the slender tube needs to rotate, and the prior art cannot solve the problem of accurate rotation of the slender tube. Therefore, most of the prior art will use laser to cut the slender tube, because the laser cutting device can move during the cutting process without the slender tube moving, but laser cutting will cause irregular laser cuts and insufficient cutting precision. However, high-precision machining equipment is generally complex and cannot be moved, which makes it difficult to use mobile cutting equipment to process fixed slender tubes. Summary of the invention

[0004] The present invention provides a slender tube axial cutting device and a cutting method, which can use a fixed cutting device to quickly and accurately cut the moving slender tube, with higher production efficiency and more accurate cutting accuracy.

[0005] The present invention can be implemented like this:

[0006] The present invention provides a slender tube axial cutting device, which comprises:

[0007] A cutting device, the cutting device is used to cut the surface of the elongated tube;

[0008] a supporting device for supporting the elongated tube when the cutting device is cutting;

[0009] A clamping device, the clamping device is used to clamp one end of a plurality of slender tubes away from the cutting device and drive the slender tubes to rotate, the clamping device is movably arranged relative to the cutting device, thereby driving the slender tubes to move axially, so that the cutting device can cut the surface of the slender tubes in sequence;

[0010] Wherein, the supporting device is arranged between the cutting device and the supporting device;

[0011] Wherein, the clamping device includes a driving member, a transmission group and a clamping part, the driving member is connected to the transmission group, the clamping part is connected to the transmission group, the clamping part is used to clamp the slender tube, and the transmission group is used to transmit under the drive of the driving member.

[0012] Optionally, the transmission group includes a rotating rod, an end of which is connected to the clamping portion, and the rotating rod is used to drive the clamping portion to rotate.

[0013] Optionally, the clamping device further comprises a movable base, the driving member is mounted on the movable base, and the driving member is configured to move relative to the cutting device under the drive of the movable base.

[0014] Optionally, the mobile base includes a mobile motor, a mobile platform, a screw seat and a mobile screw, the mobile screw is installed on the screw seat, the mobile motor is connected to the end of the mobile screw, and is used to drive the mobile screw to rotate, the mobile platform is installed on the mobile screw, and the driving member is installed on the mobile platform, and the mobile screw is used to rotate under the drive of the mobile motor, so that the mobile platform connected to the mobile screw moves, thereby driving the driving member to move.

[0015] Optionally, the transmission group further includes a transmission rod and a synchronous belt, the transmission rod is connected to the driving end of the driving member, the synchronous belt is simultaneously mounted on the transmission rod and the rotating rod, and the end of the rotating rod is connected to the clamping portion.

[0016] Optionally, the clamping portion is a clamping nozzle, and the clamping nozzle is arranged at the end of the rotating rod.

[0017] Optionally, there are multiple rotating rods, and the multiple rotating rods are all arranged below the transmission rod, and the multiple rotating rods are arranged at intervals in the horizontal direction. The number of the synchronous belts corresponds to the number of the rotating rods one by one, and the bottom ends of the multiple synchronous belts are respectively mounted on the multiple rotating rods, and the top ends of the multiple synchronous belts are all mounted on the transmission rod. The transmission rod is used to drive the multiple synchronous belts to move simultaneously under the drive of the driving member, thereby driving the multiple rotating rods to rotate together at the same time.

[0018] Optionally, the clamping device further includes a mounting seat and a support plate, the mounting seat is mounted on the movable platform, the support plate is mounted on the middle portion of the mounting seat, and the rotating rod is mounted on the mounting seat.

[0019] Optionally, the support plate is provided with a first support hole and a second support hole, the first support hole and the second support hole are arranged at intervals in the vertical direction, and the first support hole is located above the second support hole, the number of the second support holes corresponds to the number of the rotating rods one by one, the transmission rod is sleeved in the first support hole, and the multiple rotating rods are respectively sleeved in the multiple second support holes.

[0020] Optionally, the supporting device includes a baffle and a plurality of supporting groups, wherein the plurality of supporting groups are arranged at intervals along the axial direction of the slender tube, the baffle is connected to the outer side of the supporting group closest to the clamping device among the plurality of supporting groups, and when the clamping device moves to the baffle position and contacts the baffle, the plurality of supporting groups simultaneously support the slender tube.

[0021] Optionally, the support group includes a support jaw, a sensor and a driving cylinder, the driving cylinder is connected to the support jaw, the sensor is connected to the driving cylinder, and the driving cylinder is used to drive the support jaw to open or close under the sensing signal of the sensor.

[0022] The present invention also provides a method for axially cutting a slender tube, which is performed by using an axially cutting device for cutting a slender tube. The cutting method comprises:

[0023] aligning the elongated tube with the jaws of the clamping device;

[0024] The clamping device moves toward the direction close to the cutting device so that the elongated tube reaches the cutting position;

[0025] The supporting device supports and fixes the slender tube;

[0026] The cutting device is driven to perform cutting processing on the surface of the slender tube.

[0027] Optionally, the step of driving the cutting device to cut the surface of the elongated tube comprises:

[0028] The blade of the cutting device radially cuts the surface of the slender tube according to a preset cutting thickness, then the clamping device drives the slender tube to rotate a first preset angle, and the blade continues to radially cut the surface of the slender tube according to the preset cutting thickness, then the clamping device drives the slender tube to move axially according to a preset moving distance, and the blade continues to radially cut the surface of the slender tube according to the preset cutting thickness, then the clamping device drives the slender tube to rotate the first preset angle, and the blade continues to radially cut the surface of the slender tube according to the preset cutting thickness;

[0029] The clamping device drives the slender tube to move axially according to a preset moving distance, and the clamping device drives the slender tube to rotate a second preset angle, and the blade radially cuts the surface of the slender tube according to a preset cutting thickness. Then the clamping device drives the slender tube to rotate the first preset angle, and the blade continues to radially cut the surface of the slender tube according to the preset cutting thickness; and the steps of driving the cutting device to cut the surface of the slender tube are repeated.

[0030] Optionally, the step of driving the cutting device to cut the surface of the elongated tube further comprises:

[0031] The preset cutting thickness is smaller than the radius of the slender tube, the first preset angle is 90°-182°, and the second preset angle is 45°-92°.

[0032] The beneficial effects of the slender tube axial cutting device and cutting method of the present invention include, for example:

[0033] The slender tube axial cutting equipment includes a cutting device, a supporting device, and a clamping device. The cutting device is used for cutting the surface of one end of the slender tube; the supporting device is used for supporting the middle part of the slender tube when the cutting device is cutting; the clamping device is used for clamping one end of a plurality of slender tubes away from the cutting device and driving the slender tubes to rotate; the clamping device is movably arranged relative to the cutting device, thereby driving the slender tubes to move axially, so that the cutting device can cut the surface of the slender tubes in turn; the clamping device includes a driving member, a transmission group and a clamping part, the driving member is connected to the transmission group, the clamping part is connected to the transmission group, the clamping part is used for clamping the slender tube, and the transmission group is used for transmitting under the drive of the driving member; the transmission group includes a rotating rod, the end of the rotating rod is connected to the clamping part, and the rotating rod is used to drive the clamping part to rotate. During operation, the cutting device cuts one end of the slender tube, the supporting device supports the middle part of the slender tube, the clamping device clamps the other end of the slender tube and drives the slender tube to move toward the direction close to the cutting device. When the slender tube moves to the cutting position of the cutting device, the supporting device supports the slender tube to fix the slender tube. The present invention adopts the design of the above clamping device and supporting device to avoid the slender tube from shaking during the cutting process, thereby ensuring the cutting accuracy of the slender tube during cutting, and the clamping device can continuously drive the slender tube to move during the cutting process, and can maintain accurate length-direction feeding, so that the cutting device can continuously cut the surface of the slender tube in the axial direction, and can ensure the effective fixation of the slender tube without shaking or deformation during the cutting process, thereby completing the overall cutting process of the slender tube, the clamping device can also drive the slender tube to accurately rotate in the circumferential direction, and by allowing the slender tube to rotate, the cutting device can continuously cut the entire circumference of the slender tube, rather than cutting along a single point or a linear path, thereby meeting the processing requirements of the cutting product and improving the cutting efficiency, the slender tube axial cutting equipment can use a fixed cutting device to quickly and accurately cut the moving slender tube, with higher production efficiency and more accurate cutting accuracy.

[0034] The axial cutting method of the slender tube uses the axial cutting device of the slender tube to cut, and the cutting method comprises: aligning the slender tube with the clamping nozzle of the clamping device; moving the clamping device toward the direction close to the cutting device so that the slender tube reaches the cutting position; the supporting device supports and fixes the slender tube, and drives the cutting device to cut the surface of the slender tube. The cutting method of the axial cutting device of the slender tube can quickly and accurately cut the slender tube, with higher production efficiency and more accurate cutting precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 An overall diagram of the slender tube axial cutting device provided in this embodiment;

[0037] Figure 2 A schematic diagram of the structure of the mobile base provided in this embodiment;

[0038] Figure 3 A schematic diagram of the structure of the driving member, transmission group, clamping portion, support plate and mounting seat provided in this embodiment;

[0039] Figure 4 A schematic diagram of the structure of the driving member, transmission group, clamping portion and support plate provided in this embodiment;

[0040] Figure 5 A schematic diagram of the structure of the support plate provided in this embodiment;

[0041] Figure 6 A schematic diagram of the structure of the support device provided in this embodiment;

[0042] Figure 7 A schematic diagram of the structure of the support group provided in this embodiment.

[0043] Icons: 10-cutting device; 20-clamping device; 21-movable base; 211-movable motor; 212-movable platform; 213-screw seat; 214-movable screw; 221-driving member; 222-transmission group; 2221-transmission rod; 2222-synchronous belt; 2223-rotating rod; 223-clamping part; 23-mounting seat; 24-support plate; 241-first support hole; 242-second support hole; 30-support device; 31-baffle; 32-support group; 321-support jaws; 322-sensor; 323-driving cylinder; 101-slender tube. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0047] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0049] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0050] In today's industrial manufacturing field, slender tubes are widely used as basic materials in aerospace, mechanical engineering, oil and gas, medical equipment and other industries after axial processing on their surfaces. Its unique geometric characteristics - large aspect ratio and high cutting accuracy requirements, and the requirement that the slender tubes are not cut at a single point or linear path along the axial direction to meet the processing requirements of the cutting products, make the processing process face a series of technical challenges.

[0051] Although the slender tubes in the prior art are generally made of hard materials, such as metal or alloy materials, their length direction is relatively soft due to their large aspect ratio, that is, they are easy to bend and deform elastically in the length direction, and radial cutting requires high precision. If the cutting precision is not enough, it will not meet the physical performance requirements of the fields of aerospace, mechanical engineering, medical equipment, etc., such as poor transmission signal, or irregular cut marks leading to reduced product yield and service life. Tube products are preferably processed mechanically. Due to the above reasons, the prior art generally cannot use the method of feeding at one end and cutting at the other end for processing, because it is difficult to accurately feed the slender and soft tube in the radial direction. If the feed control is not appropriate, shaking will occur during processing. In addition, due to the requirements of axial processing, the slender tube needs to rotate, and the prior art cannot solve the problem of accurate rotation of the slender tube. Therefore, most of the prior art will use laser to cut the slender tube, because the laser cutting device can move during the cutting process without the slender tube moving, but laser cutting will cause irregular laser cuts and insufficient cutting precision. However, high-precision machining equipment is generally complex and cannot be moved, which makes it difficult to use mobile cutting equipment to process fixed slender tubes.

[0052] Please refer to Figure 1-Figure 7 This embodiment provides a slender tube axial cutting device and cutting method, which can effectively improve the above-mentioned technical problems, and can use a fixed cutting device 10 to quickly and accurately cut the moving slender tube 101, with higher production efficiency and more accurate cutting accuracy. Preferably, multiple tubes can be cut synchronously, and production efficiency is further improved.

[0053] In this embodiment, the slender tube axial cutting device is mainly used to cut the slender tube 101 with a length of less than 500 mm. In other embodiments, the slender tube axial cutting device can also cut the slender tube 101 with a length of more than 500 mm, which is not specifically limited here.

[0054] The axial cutting device for slender tubes comprises a cutting device 10, a clamping device 20 and a supporting device 30. The cutting device 10 is used to cut the surface of the slender tube 101. The clamping device 20 is used to clamp a plurality of slender tubes 101 and drive the slender tubes 101 to rotate. The clamping device 20 is movably arranged relative to the cutting device 10, thereby driving the slender tubes 101 to move axially, so that the cutting device 10 can sequentially cut the surface of the slender tubes 101. The supporting device 30 is installed between the clamping device 20 and the cutting device 10. The supporting device 30 is used to support the slender tube 101 when the cutting device 10 is cutting. The clamping device 20 comprises a driving member 221, a transmission group 222 and a clamping portion 223. The driving member 221 is connected to the transmission group 222. The clamping portion 223 is connected to the transmission group 222. The clamping portion 223 is used to clamp the slender tube 101. The transmission group 222 is used to transmit under the drive of the driving member 221.

[0055] Specifically, the cutting device 10 and the clamping device 20 are located on the same horizontal line. The clamping device 20 clamps the end of the slender tube 101 and can move relative to the cutting device 10, thereby driving the slender tube 101 to approach or move away from the cutting device 10. The end of the slender tube 101 clamped by the clamping device 20 is defined as the tail, and the other end of the slender tube 101 is defined as the head. When the head of the slender tube 101 reaches the cutting position of the cutting device 10, the cutting device 10 starts to work and cuts the surface of the slender tube 101 in the radial direction. During the process, the clamping device 20 can drive the slender tube 101 to rotate in a circular direction. By allowing the slender tube 101 to rotate, the cutting device 10 can continuously cut the entire circumference of the slender tube 101 instead of cutting along a single point or a linear path, thereby improving the cutting efficiency; and the continuous cutting by the cutting device 10 can produce a smoother cutting edge on the surface of the slender tube 101, reduce burrs and irregularities, and improve cutting accuracy; at the same time, the continuous cutting by the cutting device 10 can reduce local overheating caused by cutting, making the heat distribution more uniform.

[0056] In addition, during the cutting process, the clamping device 20 can drive the slender tube 101 to continuously approach the cutting device 10, so that the cutting device 10 can continuously cut along the length direction of the slender tube 101, thereby completing the cutting process of the entire slender tube 101, improving the cutting efficiency and reducing the cutting time.

[0057] Figure 2-Figure 5 The structural details of the clamping device 20 are specifically shown, and the specific structure of the clamping device 20 will be described in detail below.

[0058] In this embodiment, the clamping device 20 further includes a movable base 21 , and a driving member 221 is installed on the movable base 21 . The driving member 221 is used to move relative to the cutting device 10 under the drive of the movable base 21 .

[0059] It should be noted that the movable base 21 includes a movable motor 211, a movable platform 212, a screw seat 213 and a movable screw 214. The movable screw 214 is installed on the screw seat 213. The ends of the movable motor 211 and the movable screw 214 are connected to drive the movable screw 214 to rotate. The movable platform 212 is installed on the movable screw 214. The driving member 221 is installed on the movable platform 212. The movable screw 214 is used to rotate under the drive of the movable motor 211, so that the movable platform 212 connected to the movable screw 214 moves, thereby driving the driving member 221 to move. Specifically, the screw seat 213 is a rectangular structure, the length direction of the screw seat 213 is consistent with the length direction of the slender tube 101, the moving screw 214 is rotatably mounted on the screw seat 213, the moving motor 211 is arranged at the end of the screw seat 213 and connected to the end of the moving screw 214, and the moving platform 212 is arranged on the moving screw 214, and is used to move along the screw seat 213 following the rotation of the moving screw 214, thereby driving the driving member 221 installed on the moving platform 212 to move.

[0060] Specifically, the transmission group 222 includes a transmission rod 2221, a synchronous belt 2222 and a rotating rod 2223. The transmission rod 2221 is connected to the driving end of the driving member 221. The synchronous belt 2222 is sleeved on the transmission rod 2221 and the rotating rod 2223. The end of the rotating rod 2223 is connected to the clamping portion 223. The rotating rod 2223 can further enable the clamping portion 223 to effectively hold the slender tube 101, ensuring the axial movement and rotation of the slender tube 101 and preventing it from shaking during cutting.

[0061] It should be noted that the transmission rod 2221 is located above the rotating rod 2223, and the transmission rod 2221 and the rotating rod 2223 are arranged in parallel, the synchronous belt 2222 is arranged in the vertical direction, and the two ends of the synchronous belt 2222 are simultaneously mounted on the transmission rod 2221 and the rotating rod 2223, the driving member 221 drives the transmission rod 2221 to rotate, thereby driving the synchronous belt 2222 to rotate, and the rotating rod 2223 rotates under the drive of the synchronous belt 2222, and finally the clamping part 223 drives the slender tube 101 to rotate.

[0062] In this embodiment, the synchronous belt 2222 includes a belt body, a driving wheel and a driven wheel. The driving wheel and the driven wheel are both matched with the belt body. The driving wheel is sleeved on the transmission rod 2221, and the driven wheel is sleeved on the rotating rod 2223. The driving wheel rotates under the drive of the transmission rod 2221, driving the belt body to rotate. During the rotation of the belt body, it can push the driven wheel to rotate, thereby driving the rotating rod 2223 to rotate.

[0063] In this embodiment, the clamping portion 223 is a clamping nozzle, and the clamping nozzle is disposed at the end of the rotating rod 2223 .

[0064] Furthermore, in order to improve the cutting efficiency and ensure that the slender tube 101 can realize the interlocking function to prevent shaking during the movement or cutting process, the number of rotating rods 2223 in this embodiment is multiple, and the multiple rotating rods 2223 are all arranged below the transmission rod 2221, and the multiple rotating rods 2223 are arranged at intervals in the horizontal direction, and the number of synchronous belts 2222 corresponds to the number of rotating rods 2223 one by one. The bottom ends of the multiple synchronous belts 2222 are respectively sleeved on the multiple rotating rods 2223, and the top ends of the multiple synchronous belts 2222 are all sleeved on the transmission rod 2221. The transmission rod 2221 is used to drive the multiple synchronous belts 2222 to move at the same time under the drive of the driving member 221, thereby driving multiple The rotating rods 2223 rotate together; and the overall structure of the clamping device 20 is more compact, avoiding occupying too much space and being more convenient to use; the present embodiment is provided with a plurality of rotating rods 2223, and the clamping nozzles on each rotating rod 2223 can clamp the slender tube 101, thereby driving the plurality of slender tubes 101 to be cut at the same time, in addition to further improving the cutting efficiency, the plurality of rotating rods 2223 are connected to the same transmission rod 2221 through a synchronous belt 2222, thereby realizing the motion interlocking between the plurality of rotating rods 2223, ensuring the consistency of their motion, and the function of maintaining the consistency of the motion can further prevent the slender tube 101 from shaking during the movement or cutting process.

[0065] It should also be explained that the clamping device 20 also includes a mounting seat 23, which is mounted on the mobile platform 212, and the driving member 221, the transmission group 222 and the clamping portion 223 are all mounted on the mounting seat 23. Specifically, the mounting seat 23 includes a bottom plate and two side plates, the two side plates are respectively connected to the opposite side edges of the bottom plate, the plane where the bottom plate is located is parallel to the length direction of the rotating rod 2223, the two ends of the rotating rod 2223 and the transmission rod 2221 are both mounted on the two side plates, the end of the rotating rod 2223 provided with the clamping portion 223 extends outside the side plate, and the bottom plate and the mobile platform 212 are detachably connected by bolts.

[0066] In order to further ensure the stability of the slender tube 101 during axial movement, rotation and cutting, and avoid the transmission group 222 from shaking during the working process, the clamping device 20 in this embodiment also includes a support plate 24, which is installed in the middle of the mounting seat 23, and the support plate 24 is arranged in parallel with the side plate. The support plate 24 is provided with a first support hole 241 and a second support hole 242, the first support hole 241 and the second support hole 242 are arranged at intervals in the vertical direction, and the first support hole 241 is located above the second support hole 242, the number of the second support holes 242 corresponds to the number of the rotating rods 2223, the transmission rod 2221 is sleeved in the first support hole 241, and the plurality of rotating rods 2223 are respectively sleeved in the plurality of second support holes 242. Due to the further effective fixing of the second support hole 242 to the rotating rod 2223, the transmission group 222 is avoided from shaking during the working process, thereby ensuring the stability of the slender tube 101 during axial movement, rotation and cutting, and thereby ensuring the cutting accuracy.

[0067] Specifically, the midpoint of the transmission rod 2221 corresponds to the position of the first support hole 241, and the midpoint of the rotating rod 2223 corresponds to the position of the second support hole 242, that is, the middle part of the transmission rod 2221 is sleeved in the first support hole 241, and the middle part of the rotating rod 2223 is sleeved in the second support hole 242, and fixed by bolts. The support plate 24 can add fixed points to the transmission rod 2221 and the rotating rod 2223, thereby ensuring that the transmission rod 2221 and the rotating rod 2223 will not move or shake relative to the support plate 24 during the transmission process, further ensuring the accuracy of the cutting precision.

[0068] Figure 6 and Figure 7 The structural details of the support device 30 are shown, and the specific structure of the support device 30 will be described in detail below.

[0069] In the present embodiment, since the slender tube 101 is a flexible structure and has a certain length, the slender tube 101 is prone to collapse downward during the cutting process, thereby affecting the cutting accuracy of the slender tube 101. In order to avoid this technical problem, in the present embodiment, the supporting device 30 is arranged between the cutting device 10 and the clamping device 20. The supporting device 30 supports the uncut tube wall surface of the slender tube 101 and provides supporting force to the slender tube 101, so that the slender tube 101 remains in a horizontal state along the length direction, thereby ensuring consistent cutting accuracy.

[0070] Specifically, the supporting device 30 includes a baffle 31 and a plurality of supporting groups 32. The plurality of supporting groups 32 are arranged at intervals along the axial direction of the slender tube 101. The baffle 31 and the outer sides of the supporting group 32 closest to the clamping device 20 among the plurality of supporting groups 32 are connected. When the clamping device 20 moves to the position of the baffle 31 and contacts the baffle 31, the plurality of supporting groups 32 simultaneously support the slender tube 101.

[0071] In this embodiment, there are three support groups 32, and the three support groups 32 are arranged in sequence along the moving path of the slender tube 101. The baffle 31 is arranged on the support group 32 closest to the clamping device 20 among the three support groups 32. A sensor is provided on the baffle 31, and the sensor is connected to the support group 32. When the side plate of the clamping device 20 moves to the position of the baffle 31, the head of the slender tube 101 just reaches the cutting position of the cutting device 10. At this time, the three support groups 32 simultaneously support the slender tube 101 under the sensing signal of the sensor.

[0072] It should be noted that the support group 32 includes a support jaw 321, a sensor 322 and a driving cylinder 323. The driving cylinder 323 is connected to the support jaw 321, and the sensor 322 is connected to the driving cylinder 323. The driving cylinder 323 is used to drive the support jaw 321 to open or close under the sensing signal of the sensor 322.

[0073] In this embodiment, the support device 30 also includes an elongated mounting plate, and the three support groups 32 are all connected to the mounting plate. The length direction of the mounting plate is consistent with the length direction of the slender tube 101. The three sensors 322 are installed on the mounting plate in sequence along the length direction of the mounting plate, and each sensor 322 is arranged on the side of the corresponding support clamp 321 close to the clamping device 20.

[0074] In this embodiment, the sensor and the inductor 322 are both photoelectric sensors.

[0075] During operation, the clamping device 20 moves toward the direction close to the cutting device 10. When the side plate reaches the position of the baffle 31, the head of the slender tube 101 just reaches the cutting position of the cutting device 10. The side plate blocks the sensor installed on the baffle 31, and the three driving cylinders 323 work simultaneously, so that the three supporting jaws 321 clamp the slender tube 101 at the same time to support the slender tube 101; the slender tube 101 continuously follows the movement of the clamping device 20, and the side plate of the clamping device 20 will also pass through the three sensors in turn. When reaching the positions of the three sensors in turn, the corresponding supporting jaws 321 open under the drive of the driving cylinder 323, thereby canceling the support for the slender tube 101.

[0076] In this embodiment, the support jaw 321 includes an upper jaw and a lower jaw. When the support jaw 321 is closed, there is a gap between the upper jaw and the lower jaw, and it is not completely closed. As long as the lower jaw has a little supporting force on the slender tube 101, it will avoid affecting the forward movement and rotation of the slender tube 101.

[0077] The present invention also provides a method for axially cutting a slender tube, which is performed by using an axially cutting device for cutting a slender tube. The cutting method comprises:

[0078] S1: Align the elongated tube 101 and the clamping nozzle of the clamping device 20.

[0079] S2: The clamping device 20 moves toward the direction approaching the cutting device 10, so that the slender tube 101 reaches the cutting position.

[0080] Specifically, the moving motor 211 is started, driving the moving screw 214 to rotate, thereby causing the moving platform 212 connected to the moving screw 214 to move, and the driving member 221, transmission group 222 and clamping part 223 installed on the moving platform 212 will also move toward the direction close to the cutting device 10 until the head of the slender tube 101 moves to the cutting position of the cutting device 10.

[0081] S3: The supporting device 30 supports and fixes the slender tube 101 .

[0082] Specifically, when the head of the slender tube 101 just reaches the cutting position of the cutting device 10, the side plate of the clamping device 20 just moves to the position of the baffle 31, and the side plate of the clamping device 20 blocks the sensor installed on the baffle 31. The three driving cylinders 323 work simultaneously, so that the three supporting jaws 321 clamp the slender tube 101 at the same time to support the slender tube 101; the slender tube 101 continuously follows the movement of the clamping device 20, and the side plate of the clamping device 20 will also pass through the three sensors in turn. When reaching the positions of the three sensors in turn, the corresponding supporting jaws 321 open under the drive of the driving cylinder 323, thereby canceling the support for the slender tube 101.

[0083] S4: driving the cutting device 10 to cut the surface of the elongated tube 101 .

[0084] Specifically, the blade of the cutting device 10 radially cuts the surface of the elongated tube 101 according to a preset cutting thickness, then the clamping device 20 drives the elongated tube 101 to rotate by a first preset angle, and the blade continues to radially cut the surface of the elongated tube 101 according to the preset cutting thickness, then the clamping device 20 drives the elongated tube 101 to move axially according to a preset moving distance, and the blade continues to radially cut the surface of the elongated tube 101 according to the preset cutting thickness, then the clamping device 20 drives the elongated tube 101 to rotate by the first preset angle, and the blade continues to radially cut the surface of the elongated tube 101 according to the preset cutting thickness;

[0085] The clamping device 20 drives the slender tube 101 to move axially according to a preset moving distance, and the clamping device 20 drives the slender tube 101 to rotate a second preset angle, and the blade cuts the surface of the slender tube 101 radially according to a preset cutting thickness. Then the clamping device 20 drives the slender tube 101 to rotate the first preset angle, and the blade continues to cut the surface of the slender tube 101 radially according to the preset cutting thickness; and the above step S4 is repeated.

[0086] In this embodiment, the preset cutting thickness is less than the radius of the elongated tube 101, the preset moving distance is 5 mm, the first preset angle is 90°-182°, and the second preset angle is 45°-92°. Specifically, the preset cutting thickness is 0.1 mm, the first preset angle is 180°, and the second preset angle is 90°. In other embodiments, the first preset angle can also be 90°, 120°, 182°, etc., and the second preset angle can also be 45°, 60° or 92°, which are not specifically limited here.

[0087] During operation, after the clamping device 20 drives the head of the slender tube 101 to the cutting position of the cutting device 10, the blade cuts downwardly 0.1 mm of the surface of the slender tube 101, and then the slender tube 101 is rotated 180°, and the blade cuts downwardly 0.1 mm of the surface of the slender tube 101, then the clamping device 20 drives the slender tube 101 to translate 5 mm, and the blade cuts downwardly 0.1 mm of the surface of the slender tube 101, and then the slender tube 101 is rotated 180°, and the blade cuts downwardly 0.1 mm of the surface of the slender tube 101; then the clamping device 20 drives the slender tube 101 to translate 5 mm, and drives the slender tube 101 to rotate 90°, and the blade cuts downwardly 0.1 mm of the surface of the slender tube 101, and then the slender tube 101 is rotated 180° again, and the blade cuts downwardly 0.1 mm of the surface of the slender tube 101, and the above operations are repeated until the entire slender tube 101 is cut.

[0088] In summary, the embodiment of the present invention provides an axial cutting device and a cutting method for a slender tube, wherein the axial cutting device for a slender tube comprises a cutting device 10, a supporting device 30, and a clamping device 20. The cutting device 10 is used to cut the surface of one end of the slender tube 101; the supporting device 30 is used to support the middle part of the slender tube 101 when the cutting device 10 is cutting; the clamping device 20 is used to clamp one end of a plurality of slender tubes 101 away from the cutting device 10, and drive the slender tubes 101 to rotate. The clamping device 20 is movably arranged relative to the cutting device 10, thereby driving the slender tubes 101 to rotate. 101 moves axially, so that the cutting device 10 can cut the surface of the slender tube 101 in sequence, and the clamping device 20 includes a driving member 221, a transmission group 222 and a clamping portion 223. The driving member 221 is connected to the transmission group 222, and the clamping portion 223 is connected to the transmission group 222. The clamping portion 223 is used to clamp the slender tube 101, and the transmission group 222 is used to transmit under the drive of the driving member 221; the transmission group 222 includes a rotating rod 2223, the end of the rotating rod 2223 is connected to the clamping portion 223, and the rotating rod 2223 is used to drive the clamping portion 223 to rotate. During operation, the cutting device 10 cuts one end of the slender tube 101, the supporting device 30 supports the middle part of the slender tube 101, the clamping device 20 clamps the other end of the slender tube 101 and drives the slender tube 101 to move toward the direction close to the cutting device 10. When the slender tube 101 moves to the cutting position of the cutting device 10, the supporting device 30 supports the slender tube 101, thereby fixing the slender tube 101. The present invention adopts the design of the above clamping device 20 and the supporting device 30 to avoid the slender tube 101 from shaking during the cutting process, ensure the cutting accuracy of the slender tube 101 during cutting, and the clamping device 20 can continuously drive the slender tube 101 to move during the cutting process, and can maintain accurate length-direction feeding, so that the cutting device 10 can continuously cut the surface of the slender tube 101 in the axial direction, and can ensure the effective fixation of the slender tube 101 without shaking or deformation during the cutting process, thereby completing the overall cutting process of the slender tube 101. The clamping device 20 can also drive the slender tube 101 to accurately rotate along the circumferential direction. By allowing the slender tube 101 to rotate, the cutting device 10 can continuously cut the entire circumference of the slender tube 101, rather than cutting along a single point or a linear path, thereby meeting the processing requirements of the cutting product and improving the cutting efficiency. The slender tube axial cutting equipment can use a fixed cutting device 10 to quickly and accurately cut the moving slender tube 101, with higher production efficiency and more accurate cutting accuracy.

[0089] The axial cutting method of the slender tube uses the axial cutting equipment of the slender tube to cut, and the cutting method includes: aligning the slender tube 101 and the clamping nozzle of the clamping device 20; moving the clamping device 20 toward the direction close to the cutting device 10 so that the slender tube 101 reaches the cutting position; the supporting device 30 supports and fixes the slender tube 101, and drives the cutting device 10 to cut the surface of the slender tube 101. The cutting method of the axial cutting equipment of the slender tube can quickly and accurately cut the slender tube 101, with higher production efficiency and more accurate cutting accuracy. It uses a fixed cutting device 10 to quickly and accurately cut the moving slender tube 101, with higher production efficiency and more accurate cutting accuracy.

[0090] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A slender tube axial cutting device, characterized in that: include: A cutting device (10), wherein the cutting device (10) is used to perform cutting processing on the surface of the slender tube (101); A supporting device (30), the supporting device (30) being used to support the elongated tube (101) when the cutting device (10) is cutting; a clamping device (20), the clamping device (20) being used to clamp one end of a plurality of slender tubes (101) away from the cutting device (10) and drive the slender tubes (101) to rotate, the clamping device (20) being movably arranged relative to the cutting device (10), thereby driving the slender tubes (101) to move axially, so that the cutting device (10) can cut the surfaces of the slender tubes (101) in sequence; Wherein, the supporting device (30) is arranged between the cutting device (10) and the clamping device (20); The clamping device (20) comprises a driving member (221), a transmission group (222), and a clamping portion (223); the driving member (221) is connected to the transmission group (222); the clamping portion (223) is connected to the transmission group (222); the clamping portion (223) is used to clamp the slender tube (101); and the transmission group (222) is used to transmit under the drive of the driving member (221); The transmission group (222) comprises a rotating rod (2223), the end of the rotating rod (2223) is connected to the clamping portion (223), and the rotating rod (2223) is used to drive the clamping portion (223) to rotate; The supporting device (30) comprises a baffle (31) and a plurality of supporting groups (32), the plurality of supporting groups (32) being arranged at intervals along the axial direction of the slender tube (101), the baffle (31) being connected to the outer side of the supporting group (32) closest to the clamping device (20) among the plurality of supporting groups (32), and when the clamping device (20) moves to the position of the baffle (31) and contacts the baffle (31), the plurality of supporting groups (32) simultaneously support the slender tube (101); The support group (32) comprises a support clamp (321), a sensor (322) and a driving cylinder (323); the driving cylinder (323) is connected to the support clamp (321); the sensor (322) is connected to the driving cylinder (323); the driving cylinder (323) is used to drive the support clamp (321) to open or close under the sensing signal of the sensor (322).

2. The slender tube axial cutting device according to claim 1, characterized in that: The clamping device (20) further comprises a movable base (21), the driving member (221) being mounted on the movable base (21), and the driving member (221) being used to move relative to the cutting device (10) under the drive of the movable base (21).

3. The slender tube axial cutting device according to claim 2, characterized in that: The movable base (21) comprises a movable motor (211), a movable platform (212), a screw seat (213) and a movable screw (214); the movable screw (214) is mounted on the screw seat (213); the movable motor (211) and the end of the movable screw (214) are connected to drive the movable screw (214) to rotate; the movable platform (212) is mounted on the movable screw (214); the driving member (221) is mounted on the movable platform (212); the movable screw (214) is driven by the movable motor (211) to rotate, thereby causing the movable platform (212) connected to the movable screw (214) to move, thereby driving the driving member (221) to move.

4. The slender tube axial cutting device according to claim 3, characterized in that: The transmission group (222) further comprises a transmission rod (2221) and a synchronous belt (2222); the transmission rod (2221) is connected to a driving end of the driving member (221); the synchronous belt (2222) is simultaneously sleeved on the transmission rod (2221) and the rotating rod (2223); and the end of the rotating rod (2223) is connected to the clamping portion (223).

5. The slender tube axial cutting device according to claim 4, characterized in that: The clamping portion (223) is a clamping nozzle, and the clamping nozzle is arranged at the end of the rotating rod (2223).

6. The axial cutting device for an elongated tube according to claim 4, characterized in that: There are a plurality of rotating rods (2223), and the plurality of rotating rods (2223) are all arranged below the transmission rod (2221), and the plurality of rotating rods (2223) are arranged at intervals in the horizontal direction. The number of the synchronous belts (2222) corresponds to the number of the rotating rods (2223) in a one-to-one manner. The bottom ends of the plurality of synchronous belts (2222) are respectively sleeved on the plurality of rotating rods (2223), and the top ends of the plurality of synchronous belts (2222) are all sleeved on the transmission rod (2221). The transmission rod (2221) is used to simultaneously drive the plurality of synchronous belts (2222) to move under the drive of the driving member (221), thereby simultaneously driving the plurality of rotating rods (2223) to rotate together.

7. The axial cutting device of the elongated tube according to claim 6, characterized in that: The clamping device (20) further comprises a mounting seat (23) and a support plate (24); the mounting seat (23) is mounted on the mobile platform (212); the support plate (24) is mounted on the middle part of the mounting seat (23); and the rotating rod (2223) is mounted on the mounting seat (23).

8. The slender tube axial cutting device according to claim 7, characterized in that: The support plate (24) is provided with a first support hole (241) and a second support hole (242); the first support hole (241) and the second support hole (242) are arranged at intervals in a vertical direction, and the first support hole (241) is located above the second support hole (242); the number of the second support holes (242) corresponds to the number of the rotating rods (2223); the transmission rod (2221) is sleeved in the first support hole (241), and the plurality of rotating rods (2223) are respectively sleeved in the plurality of second support holes (242).

9. A method for axially cutting a slender tube, characterized in that: Cutting is performed using the slender tube axial cutting device according to any one of claims 1 to 8, the cutting method comprising: Aligning the elongated tube (101) with the clamping nozzle of the clamping device (20); The clamping device (20) moves in a direction close to the cutting device (10), so that the slender tube (101) reaches a cutting position; The supporting device (30) supports and fixes the slender tube (101); The cutting device (10) is driven to perform cutting processing on the surface of the slender tube (101).

10. The axial cutting method of the elongated tube according to claim 9, characterized in that: The step of driving the cutting device (10) to perform cutting processing on the surface of the elongated tube (101) comprises: The blade of the cutting device (10) cuts the surface of the slender tube (101) radially according to a preset cutting thickness, then the clamping device (20) drives the slender tube (101) to rotate by a first preset angle, and the blade continues to cut the surface of the slender tube (101) radially according to the preset cutting thickness, then the clamping device (20) drives the slender tube (101) to move axially according to a preset moving distance, and the blade continues to cut the surface of the slender tube (101) radially according to the preset cutting thickness, then the clamping device (20) drives the slender tube (101) to rotate by the first preset angle, and the blade continues to cut the surface of the slender tube (101) radially according to the preset cutting thickness; The clamping device (20) drives the slender tube (101) to move axially according to a preset moving distance, and the clamping device (20) drives the slender tube (101) to rotate to a second preset angle, and the blade cuts the surface of the slender tube (101) radially according to a preset cutting thickness. Then, the clamping device (20) drives the slender tube (101) to rotate to the first preset angle, and the blade continues to cut the surface of the slender tube (101) radially according to the preset cutting thickness; and the step of driving the cutting device (10) to perform cutting processing on the surface of the slender tube (101) is repeated.

11. The method for axially cutting a slender tube according to claim 10, characterized in that: The step of driving the cutting device (10) to perform cutting processing on the surface of the elongated tube (101) further comprises: The preset cutting thickness is smaller than the radius of the slender tube (101), the first preset angle is 90°-182°, and the second preset angle is 45°-92°.

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