Endoscope pipe cutting device

Abstract

The utility model discloses an endoscope pipe cutting device, which comprises a pipe rotating mechanism, a cutting mechanism and a cutting mechanism, the pipe rotating mechanism comprises two clamping components and a core rod, the two clamping components are symmetrically arranged at an interval, the core rod is positioned between the two clamping components, the periphery of the core rod is used for coaxially sleeving a pipe, and the two clamping components are used for clamping the core rod and the pipe to rotate together; the cutter feeding mechanism comprises a base, a driving assembly, a sliding seat and a cutter guide seat, the driving assembly and the sliding seat are both arranged on the base, the cutter guide seat is arranged on the sliding seat, a cutter perpendicular to the axial direction of the core rod is arranged on the side, facing the core rod, of the cutter guide seat, the side, back to the core rod, of the cutter guide seat is connected with the sliding seat through an elastic buffer part, and the driving assembly is connected with the sliding seat. The driving mechanism is used for driving the sliding seat to reciprocate along the axial direction perpendicular to the core rod; the cutter moving mechanism is connected with the base and used for driving the base to reciprocate in the axial direction of the core rod. The hard thin-wall pipe cutting device can cut hard thin-wall pipes with different outer diameters, and has high cutting quality and cutting safety and stability.

Description

Technical Field

[0001] The utility model relates to the technical field of tube cutting, and more specifically to an endoscope tube cutting device. Background Art

[0002] The tubing used in the soft endoscope insertion part includes the main hose, clamp channel tube, snake bone outer sleeve, and tip outer sleeve. Due to the limited space of the endoscope, the hardness, inner diameter and outer diameter of each tube are required to be high. In this way, when the hardness and inner diameter of the tube meet the requirements, the outer diameter of the tube should be guaranteed to remain unchanged after cutting, that is, the cutting port of the tube should not be deformed.

[0003] In the existing pipe cutting device, such as the Chinese patent with the published patent number CN217915581U, the driving motor is connected to the disc through a connecting rod, and the disc is provided with an electric telescopic rod with an electric cutting blade connected to the outside, but the electric cutting blade cannot move in the radial direction of the disc, and the positioning feeding module and the matching fixing module are fixedly arranged vertically, so it cannot adapt to the cutting of pipes with different outer diameters; and in the Chinese patent with the published patent number CN212469986U, the pipe is placed on the front end supporting base of the pipe and the rear end supporting base of the pipe, and passes through the cutting channel, and the annular cutting knife rotates circumferentially along the center point of the channel to be cut to cut the pipe in an annular manner. It can be seen that the annular cutting knife cannot move in the radial direction of the cutting channel, and the diameter of the cutting channel is a fixed value, so it cannot adapt to the cutting of pipes with different outer diameters.

[0004] In addition, the tubes in endoscopes are mostly hard thin-walled tubes. Directly using the cutting devices protected by the above two patents to cut them can easily cause deformation of the tube cutting port, resulting in poor cutting quality. In addition, existing cutters are usually thin, and when using the cutter to squeeze the hard tube for cutting, the cutter is prone to bounce, resulting in poor cutting safety and stability.

[0005] In summary, how to provide an endoscopic tube cutting device that can cut hard thin-walled tubes of different outer diameters and has high cutting quality, cutting safety and stability is a problem that urgently needs to be solved by technical personnel in this field. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide an endoscope tube cutting device, which can cut hard thin-walled tubes with different outer diameters and has high cutting quality, cutting safety and stability.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An endoscope tube cutting device, comprising:

[0009] The pipe rotating mechanism comprises two clamping assemblies symmetrically arranged at intervals and a mandrel located between the two clamping assemblies, the outer periphery of the mandrel is used for coaxially sleeved pipe, and the two clamping assemblies are used for clamping the mandrel and the pipe to rotate together;

[0010] The cutter feeding mechanism comprises a base, a driving assembly and a slide seat both arranged on the base, and a cutter guide seat arranged on the slide seat, wherein the cutter guide seat is provided with a cutter arranged perpendicular to the axial direction of the mandrel on the side facing the mandrel, the cutter guide seat is connected to the slide seat via an elastic buffer on the side facing away from the mandrel, and the driving assembly is connected to the slide seat for driving the slide seat to reciprocate along the axial direction perpendicular to the mandrel;

[0011] The cutter moving mechanism is connected to the base and is used to drive the base to move back and forth along the axial direction of the core rod.

[0012] Preferably, a baffle is provided on the side of the top end of the slide seat facing away from the core rod, and a locking sub-bolt is passed through the baffle. The cutter guide seat is located at the top end of the slide seat and is passed through by a locking nut bolt. The cutter guide seat is connected to the baffle through the locking fit of the locking nut bolt and the locking sub-bolt, and a buffer gap is left between the cutter guide seat and the baffle, and the elastic buffer is located in the buffer gap.

[0013] Preferably, the cutter guide seat is provided with two symmetrically arranged clamping plates on the side facing the core rod, with a gap left between the two clamping plates, and the gap is provided with a support column arranged along the axial direction of the core rod, and the end of the support column is rotatably connected to the clamping plate through a first bearing, and the cutter sleeve is arranged on the support column and extends out of the gap.

[0014] Preferably, opposite sides of the two clamping plates are each provided with a base surface located directly below the cutter, and a cutting slit for avoiding the cutter is provided on a side of the base surface close to the cutter.

[0015] Preferably, the base is provided with a first bearing seat, a second bearing seat and a third bearing seat in sequence and at intervals along an axial direction perpendicular to the core rod, and the interval between the second bearing seat and the third bearing seat is used to place the cutter;

[0016] The driving assembly includes a first motor and a first screw rod, wherein the first motor is disposed on the first bearing seat, the first screw rod is connected to the first motor, and the first screw rod passes through the second bearing seat in an axial direction perpendicular to the mandrel and is disposed on the third bearing seat;

[0017] Guide rods are symmetrically arranged between the second bearing seat and the third bearing seat and are located on both sides of the first screw rod. The guide rods are arranged parallel to the first screw rod. The cutter guide seat can be slidably passed through the first screw rod and the guide rods.

[0018] Preferably, a rolling element is provided at a position of the third bearing seat facing the cutter, and the rolling element extends a certain length along the axial direction of the mandrel and can rotate along with the mandrel.

[0019] Preferably, one of the clamping assemblies comprises a motor bracket, a third motor and a first three-jaw chuck, wherein the third motor is arranged on the motor bracket and connected to the first three-jaw chuck;

[0020] Another clamping assembly includes a guide bracket and a second three-jaw chuck, wherein the second three-jaw chuck can be rotatably arranged on the guide bracket and is located at the same height as the first three-jaw chuck, the first three-jaw chuck and the second three-jaw chuck are used to clamp the core rod and the pipe, and the guide bracket can be movably arranged along the axial direction of the core rod.

[0021] Preferably, a cavity is provided at the top of the guide bracket, and a first coupling, a connecting shaft and a second bearing are provided in the cavity. The second three-jaw chuck is connected to the connecting shaft through the coupling, and both ends of the connecting shaft are sleeved with the second bearings.

[0022] Preferably, a slide groove is provided on the bottom end surface of the guide bracket, and the slide groove is arranged along the axial direction of the core rod and is slidably matched with the slide bar;

[0023] A first sliding block which can slide vertically is arranged in the guide bracket, and the slide groove is provided with a notch for the first sliding block to slide out of the guide bracket, and when the first sliding block slides out of the guide bracket, the first sliding block squeezes the slide bar to lock the guide bracket.

[0024] Preferably, it further comprises a control unit, wherein the control unit signals connect the tube rotating mechanism, the cutter feeding mechanism and the cutter moving mechanism.

[0025] Compared with the above-mentioned background technology, when the endoscope tube cutting device provided by the utility model is used, the tube is sleeved on the outer periphery of the core rod and the two are clamped together between two clamping components, wherein the core rod supports the tube, and even if the tube is a hard thin-walled tube, it will not be deformed, which is beneficial to improving the cutting quality; the cutter moving mechanism drives the base to move to the tube cutting position along the axial direction of the core rod according to the set cutting length, and then the driving component drives the slide to move toward the tube in a direction perpendicular to the axial direction of the core rod, and the cutter squeezes the tube and feeds the cutter to the tube, and at the same time the two The clamping assembly drives the pipe and the mandrel to rotate together to achieve pipe cutting. When the cutter contacts the pipe, on the one hand, the elastic buffer plays a buffering role, so that the cutter squeezes and cuts the pipe in a relatively gentle manner, which can avoid damage to the cutter or even the phenomenon of the cutter bouncing due to the mandrel with greater rigidity, thereby improving the safety and stability of cutting. On the other hand, under the elastic force of the elastic buffer, the cutter guide seat slides back and forth on the slide relative to the pipe, which also makes the cutter slide back and forth relative to the pipe to compensate for the cutter feed error, thereby improving the cutting quality. In addition, it should be noted that if two clamping assemblies clamp hard thin-walled pipes of different outer diameters for cutting, the driving assembly can adjust the position of the cutter to achieve the cutter squeezing and cutting the pipe.

[0026] Therefore, the endoscope tube cutting device of the present application is capable of cutting hard thin-walled tubes with different outer diameters, and has high cutting quality, cutting safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 This is a structural schematic diagram of an endoscope tube cutting device provided by the utility model;

[0029] Figure 2 A top view of an endoscope tube cutting device provided by the utility model;

[0030] Figure 3 This is a structural schematic diagram of the pipe rotating mechanism provided by the utility model;

[0031] Figure 4 An exploded view of the installation of the second three-jaw chuck and the guide bracket provided by the utility model;

[0032] Figure 5 A schematic diagram of the structure of the cutter feeding mechanism provided by the utility model;

[0033] Figure 6 An exploded view of the installation of the slide seat and the cutter guide seat provided by the utility model;

[0034] Figure 7 A schematic diagram of the installation of the cutter and the support provided by the utility model;

[0035] Figure 8 The present invention is a schematic structural diagram of a clamping plate provided by the present invention.

[0036] Reference numerals:

[0037] 1- pipe rotating mechanism; 2- cutter feeding mechanism; 3- cutter moving mechanism; 4- mandrel; 5- workbench; 6- control unit;

[0038] 101-motor bracket; 102-third motor; 103-first three-jaw chuck; 104-guide bracket; 105-second three-jaw chuck; 106-first coupling; 107-connecting shaft; 108-second bearing; 109-slideway; 110-slide bar; 111-first slider; 112-second slider; 113-slideway; 114-locking knob;

[0039] 201-base; 202-sliding seat; 203-cutter guide seat; 204-elastic buffer; 205-first motor; 206-first screw rod; 207-second coupling; 208-first bearing seat; 209-second bearing seat; 210-third bearing seat; 211-guide rod; 212-rolling element; 213-baffle; 214-locking bolt; 215-locking nut bolt; 216-clamp; 217-cutter; 218-pillar; 219-first bearing; 220-fastening screw; 221-cutter slit;

[0040] 301 - second motor; 302 - second screw rod; 303 - slide rail; 304 - proximity switch. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] The core of the utility model is to provide an endoscope tube cutting device, which can cut hard thin-walled tubes with different outer diameters and has high cutting quality, cutting safety and stability.

[0043] It should be noted that the forward and backward movement described below refers to movement along the axial direction of the core rod 4 , and the left and right movement refers to movement along the axial direction perpendicular to the core rod 4 .

[0044] The present application provides an endoscopic tube cutting device, comprising a tube rotating mechanism 1, a cutter feeding mechanism 2 and a cutter moving mechanism 3.

[0045] Please refer to Figure 1 and Figure 2 The pipe rotating mechanism 1 includes two clamping assemblies symmetrically spaced apart and a mandrel 4 located between the two clamping assemblies. The outer periphery of the mandrel 4 is used for coaxially sleeved pipes. The two clamping assemblies are used for clamping the mandrel 4 and the pipes to rotate together.

[0046] Among them, the two clamping assemblies are arranged at a certain distance according to the length of the pipe to be cut, and the two clamping assemblies are arranged symmetrically to ensure that the core rod 4 and the pipe are placed horizontally, which is convenient for cutting. The core rod 4 has good rigidity. It is inserted into the thin-walled pipe and has the effect of supporting the pipe, which can effectively prevent the thin-walled pipe from deforming during the cutting operation. The function of the clamping assembly is to clamp the core rod 4 and the pipe to rotate together. It should be noted that when the inner diameter of the pipe is constant, that is, when the diameter of the core rod 4 is constant, the clamping assembly can clamp pipes of different outer diameters.

[0047] Please refer to Figure 1 , Figure 5 and Figure 6 The cutter feeding mechanism 2 includes a base 201, a driving assembly and a slide 202 both arranged on the base 201, and a cutter guide seat 203 arranged on the slide 202. The cutter guide seat 203 is provided with a cutter 217 arranged perpendicular to the axial direction of the core rod 4 on the side facing the core rod 4. The cutter guide seat 203 is connected to the slide 202 through an elastic buffer 204 on the side facing away from the core rod 4. The driving assembly is connected to the slide 202 for driving the slide 202 to reciprocate along the axial direction perpendicular to the core rod 4.

[0048] Among them, the base 201 can be arranged below the pipe and the core rod 4, the fixed end of the driving assembly is arranged on the rear side of the base 201 away from the core rod 4, and the driving end is connected to the slide 202. A cutter guide seat 203 is arranged on the slide 202, and a cutter 217 is arranged on the front side of the cutter guide seat 203 facing the core rod 4, and the cutter 217 is arranged perpendicular to the axial direction of the core rod 4 to ensure the flatness of the pipe cutting port. A spring is connected between the rear side of the cutter guide seat 203 facing away from the core rod 4 and the slide 202, so that the cutter guide seat 203 can slide back and forth on the slider.

[0049] Please refer to Figure 1 and Figure 2The cutter moving mechanism 3 is connected to the base 201 and is used to drive the base 201 to move back and forth along the axial direction of the core rod 4.

[0050] The structure of the cutter moving mechanism 3 is not limited, as long as its driving end is connected to the base 201 to drive the base 201 to move left and right, it can drive the cutter 217 to move left and right, thereby moving the cutter 217 to the pipe cutting position according to the set cutting length.

[0051] Specifically, when the endoscope tube cutting device with the above-mentioned structure is used, the tube is sleeved on the outer periphery of the mandrel 4 and the two are clamped together between the two clamping assemblies, wherein the mandrel 4 supports the tube, and even if the tube is a hard thin-walled tube, it will not be deformed, which is conducive to improving the cutting quality; the cutter moving mechanism 3 drives the base 201 to move to the tube cutting position along the axial direction of the mandrel 4 according to the set cutting length, and then the driving assembly drives the slide 202 to move toward the tube along the axial direction perpendicular to the mandrel 4, and makes the cutter 217 squeeze the tube and feed the cutter 217 to the tube. At the same time, the two clamping assemblies drive the tube and The mandrel 4 rotates together to achieve pipe cutting, wherein when the cutter 217 contacts the pipe, on the one hand, the elastic buffer 204 plays a buffering role, so that the cutter 217 squeezes and cuts the pipe in a relatively gentle manner, which can avoid the mandrel 4 with greater rigidity from damaging the cutter 217 or even causing the cutter to bounce, thereby improving the cutting safety and stability, on the other hand, under the elastic force of the elastic buffer 204, the cutter guide seat 203 slides back and forth on the slide seat 202 relative to the pipe, that is, the cutter 217 slides back and forth relative to the pipe, so as to compensate for the feed error of the cutter 217, thereby improving the cutting quality. In addition, it should be noted that if the two clamping assemblies clamp hard thin-walled pipes of different outer diameters for cutting, the drive assembly can adjust the position of the cutter 217 to achieve the cutter 217 squeezing and cutting the pipe. Therefore, the endoscope pipe cutting device of the present application can cut hard thin-walled pipes of different outer diameters, and has high cutting quality, cutting safety and stability.

[0052] Optional, please refer to Figure 1 The present application also includes a workbench 5, on which the pipe rotating mechanism 1, the cutter feeding mechanism 2 and the cutter moving mechanism 3 are all arranged. The workbench 5 provides an orderly working space for each mechanism and facilitates the overall transportation of the device.

[0053] In order to improve the connection stability between the cutter guide seat 203 and the slide seat 202 and prevent the cutter guide seat 203 from sliding out of the slide seat 202, based on the above embodiment, please refer to Figure 6A baffle 213 is provided on the side of the top of the slide 202 facing away from the core rod 4, and a locking bolt 214 is penetrated through the baffle 213. The cutter guide seat 203 is located at the top of the slide 202 and is penetrated by a locking nut bolt 215. The cutter guide seat 203 is connected to the baffle 213 by locking the locking nut bolt 215 and the locking nut bolt 214, and a buffer gap is left between the cutter guide seat 203 and the baffle 213, and the elastic buffer 204 is located in the buffer gap.

[0054] Specifically, the cutter guide seat 203 is placed on the top surface of the slide seat 202, and the rear side of the top of the slide seat 202 facing away from the core rod 4 is integrally connected to the baffle 213, a first bolt hole is set on the baffle 213, and the cutter guide seat 203 is set with a second bolt hole opposite to the first bolt hole. It should be noted that the locking nut bolt 215 is a threaded connector with an internal thread, and the locking sub-bolt 214 is a threaded connector with an external thread. In this way, the first bolt hole is provided with an internal thread that is threadedly connected to the locking sub-bolt 214, and the second bolt hole needs to penetrate the cutter guide seat 203 and slide with the smooth outer wall of the locking nut bolt 215, wherein the length of the locking nut bolt 215 should be greater than the thickness of the cutter guide seat 203, so that the cutter guide seat 203 has a certain sliding distance on the slide seat 202, and the rear side of the cutter guide seat 203 facing away from the core rod 4 is connected to the baffle 213 through a spring. Therefore, the use of the locking bolts in the above structure to connect the cutter guide seat 203 and the slide seat 202 can not only improve the connection stability between the cutter guide seat 203 and the slide seat 202 without affecting the forward and backward sliding of the cutter guide seat 203, but also prevent the cutter guide seat 203 from sliding out of the slide seat 202. In addition, it should be noted that the length direction is based on the axial direction perpendicular to the core rod 4, and the length of the cutter guide seat 203 is smaller than the length of the slide seat 202, so that the slide seat 202 can better provide stable support for the cutter guide seat 203.

[0055] Optionally, the axial directions of the locking sub-bolt 214 and the locking nut bolt 215 are perpendicular to the axial direction of the core rod 4, so that the cutter guide seat 203 moves back and forth along the axial direction perpendicular to the core rod 4, so that the cutter guide seat 203 plays a role of guiding the cutter 217 to move, thereby ensuring the verticality of the cutter 217 and the pipe, thereby achieving the purpose of improving the flatness of the pipe cutting port.

[0056] In order to reduce the jumping rate of the cutter 217 and improve the verticality of the cutter 217 when rotating, based on the above embodiment, please refer to Figures 6 to 8, two symmetrically arranged clamping plates 216 are provided on the side of the cutter guide seat 203 facing the mandrel 4, a gap is left between the two clamping plates 216, a support 218 arranged along the axial direction of the mandrel 4 is provided in the gap, the end of the support 218 is rotatably connected to the clamping plate 216 through a first bearing 219, and the cutter 217 is sleeved on the support 218 and extends out of the gap. In this way, the support 218 and the first bearing 219 rotate in coordination, so that the cutter 217 can rotate smoothly relative to the cutter guide seat 203, so as to reduce the runout rate of the cutter 217, thereby improving the verticality of the cutter 217 when rotating, and also helping to improve the flatness of the pipe cutting port, thereby improving the cutting quality.

[0057] Optionally, the two clamping plates 216 are detachably connected via a fastening screw 220 to facilitate assembly and disassembly of the cutter 217 .

[0058] In addition, the structure of the cutter 217 of the present application is not unique, and the cutter 217 can adopt a circular blade or other structures as long as the pipe cutting requirements are met.

[0059] In order to avoid the interference between the cutter 217 and the clamping plate 216 when the cutter 217 rotates, based on the above embodiment, please refer to Figure 8 , the opposite sides of the two clamping plates 216 are provided with a base surface located directly below the cutter 217, and a cutter slit 221 for avoiding the cutter 217 is provided on the side of the base surface close to the cutter 217. Specifically, a groove-shaped gap is formed between the two clamping plates 216 located directly above the base surface, and the cutter slit 221 is provided on the side of the base surface close to the gap to avoid friction and collision between the cutter 217 and the clamping plates 216 when the cutter 217 rotates, thereby ensuring the smooth rotation of the cutter 217 and protecting the cutter 217 and the clamping plates 216 from damage.

[0060] In order to ensure that the cutter guide seat 203 always moves smoothly in the axial direction perpendicular to the core rod 4, based on the above embodiment, please refer to Figure 5 The base 201 is provided with a first bearing seat 208, a second bearing seat 209 and a third bearing seat 210 in sequence along the axial direction perpendicular to the core rod 4, and the interval between the second bearing seat 209 and the third bearing seat 210 is used to place the cutter 217; the driving assembly includes a first motor 205 and a first screw rod 206, the first motor 205 is arranged on the first bearing seat 208, the first screw rod 206 is connected to the first motor 205, and the first screw rod 206 passes through the second bearing seat 209 along the axial direction perpendicular to the core rod 4 and is arranged on the third bearing seat 210; guide rods 211 are symmetrically provided between the second bearing seat 209 and the third bearing seat 210, and the guide rods 211 are arranged parallel to the first screw rod 206, and the cutter guide seat 203 can be slidably sleeved on the first screw rod 206 and the guide rod 211.

[0061] Specifically, the present application adopts a drive assembly consisting of a screw and a motor that can achieve high-precision guiding and transmission. The first bearing seat 208 enables the first motor 205 to be firmly mounted on the base 201 to reduce the vibration of the first motor 205 during operation. The second bearing seat 209 and the third bearing not only support the first screw rod 206, but also play a role in axial positioning of the first screw rod 206, so that the first screw rod 206 is firmly mounted on the base 201 along the axial direction perpendicular to the core rod 4. The front end of the first screw rod 206 is connected to the output shaft of the first motor 205 and is rotatably arranged on the second bearing seat 209, and the rear end of the first screw rod 206 is rotatably arranged on the third bearing seat 210. At least two guide rods 211 are arranged between the second bearing seat 209 and the third bearing seat 210, and at least two guide rods 211 are symmetrically located on both sides of the first screw rod 206. The bottom of the slide 202 is provided with a through hole for the first screw rod 206 to slide through and a through hole for the guide rod 211 to slide through, so that the slide 202 slides along the first screw rod 206 and the guide rod 211, wherein the first screw rod 206 transmits a driving force to the slide 202, driving the slide 202 to move back and forth, and the guide rod 211 guides the slide 202 to ensure that the cutter guide seat 203 always moves smoothly in the axial direction perpendicular to the core rod 4, thereby ensuring the verticality of the cutter 217 and the pipe, further improving the flatness of the pipe cutting port.

[0062] Optionally, the output shaft of the first motor 205 is connected to the first screw rod 206 via the second coupling 207 so that the first screw rod 206 rotates smoothly, thereby facilitating the smoothness of the sliding of the slide 202 and further ensuring the verticality of the cutter 217 and the pipe.

[0063] In order to further improve the cutting quality and stability of the device, based on the above embodiments, please refer to Figure 5 A rolling element 212 is provided at a position of the third bearing seat 210 facing the cutter 217 , and the rolling element 212 extends a certain length along the axial direction of the mandrel 4 and can rotate with the mandrel 4 .

[0064] Specifically, a fixed bracket is integrally provided at the top of the third bearing seat 210, and a plurality of rolling elements 212 are provided from top to bottom on the side of the fixed bracket facing the cutter 217, and the axial direction of each rolling element 212 is parallel to the axial direction of the mandrel 4. In this way, when the cutter 217 squeezes the pipe, the rolling element 212 can support the pipe and rotate with the pipe to reduce the vibration of the pipe during rotation, thereby improving the cutting quality and stability of the device.

[0065] In order to enable the device to cut pipes of different lengths, based on the above embodiments, please refer to Figure 3One clamping assembly includes a motor bracket 101, a third motor 102 and a first three-jaw chuck 103, the third motor 102 is arranged on the motor bracket 101 and is connected to the first three-jaw chuck 103; the other clamping assembly includes a guide bracket 104 and a second three-jaw chuck 105, the second three-jaw chuck 105 is rotatably arranged on the guide bracket 104 and is located at the same height as the first three-jaw chuck 103, the first three-jaw chuck 103 and the second three-jaw chuck 105 are used to clamp the core rod 4 and the pipe, and the guide bracket 104 is movably arranged along the axial direction of the core rod 4.

[0066] Specifically, the motor bracket 101 and the guide bracket 104 are arranged on the workbench 5 at intervals, the third motor 102 is arranged on the motor bracket 101, the output shaft of the third motor 102 is connected to the first three-jaw chuck 103, and is used to drive the first three-jaw chuck 103 to rotate, and the second three-jaw chuck 105 is rotatably arranged on the guide bracket 104, and the second three-jaw chuck 105 is coaxially arranged with the first three-jaw chuck 103. Among them, the coaxially arranged first three-jaw chuck 103 and the second three-jaw chuck 105 clamp the pipe and the mandrel 4. It can be understood that the three-jaw chuck is composed of three symmetrically arranged claws, and a clamping space with strong applicability is formed between the three claws, so as to be suitable for clamping pipes with different outer diameters. In addition, the guide bracket 104 is slidably connected to the workbench 5 so that the guide bracket 104 can be moved left and right, that is, the guide bracket 104 is moved along the axial direction of the core rod 4. The distance between the first three-jaw chuck 103 and the second three-jaw chuck 105 can be adjusted by moving the guide bracket 104 forward and backward, so that the first three-jaw chuck 103 and the second three-jaw chuck 105 are suitable for clamping pipes and core rods 4 of different lengths, thereby realizing cutting of pipes of different lengths.

[0067] In order to reduce the jumping rate of the mandrel 4 and the tube when rotating, based on the above embodiment, please refer to Figure 4 , a cavity is provided at the top of the guide bracket 104, in which a first coupling 106, a connecting shaft 107 and a second bearing 108 are provided, and the second three-jaw chuck 105 is connected to the connecting shaft 107 through the coupling, and both ends of the connecting shaft 107 are sleeved with second bearings 108. It can be understood that the second three-jaw chuck 105 can be smoothly rotatably installed on the guide bracket 104 by rotating the matching connecting shaft 107 and the second bearing 108. On this basis, the vibration and noise of the coupling during operation are relatively small, which can provide a smooth power transmission, thereby ensuring that the second three-jaw chuck 105 rotates safely and smoothly, thereby reducing the jumping rate of the mandrel 4 and the pipe when rotating.

[0068] In order to realize the locking of the guide bracket 104 during the pipe cutting process, based on the above embodiment, please refer to Figure 4A slide groove 109 is provided on the bottom end surface of the guide bracket 104, and the slide groove 109 is arranged along the axial extension of the core rod 4 and slidably cooperates with the slide bar 110; a first slider 111 which can slide vertically is provided in the guide bracket 104, and the slide groove 109 is provided with a notch for the first slider 111 to slide out of the guide bracket 104, and when the first slider 111 slides out of the guide bracket 104, the first slider 111 squeezes the slide bar 110 to lock the guide bracket 104.

[0069] Specifically, the bottom end surface of the guide bracket 104 is provided with a slide groove 109 extending along the axial direction of the mandrel 4, and a slide bar 110 extending along the axial direction of the mandrel 4 is provided at a position corresponding to the slide groove 109 on the workbench 5. The slide groove 109 and the slide bar 110 are slidably connected to realize the left and right sliding of the guide bracket 104. Further, a slideway 113 is vertically provided in the bottom of the guide bracket 104, and the first slider 111 can be vertically arranged in the slideway 113, and a notch is provided at the position of the slide groove 109 corresponding to the slideway 113, so that the first slider 111 can slide out of the guide bracket 104 through the notch to squeeze the slide table to achieve the effect of locking the guide bracket 104, thereby avoiding the guide bracket 104 not being locked during the pipe cutting process and affecting the cutting quality.

[0070] Further, in order to facilitate the operator to switch the locking state and the loosening state of the guide bracket 104, based on the above embodiment, please refer to Figure 4 The second slider 112 is pressed against the upper surface of the first slider 111, and a locking knob 114 is provided at the position of the guide bracket 104 corresponding to the second slider 112. The control part of the locking knob 114 is located outside the guide bracket 104, and the control part is located inside the guide bracket 104 and connected to the second slider 112. In this way, the operator rotates the locking knob 114 to push the second slider 112 to press the first slider 111 tightly, so that the first slider 111 slides out of the guide bracket 104 and squeezes the slide bar 110, and the guide bracket 104 can be locked. The operator rotates the locking knob 114 in the opposite direction to push the second slider 112 to move upward, drive the first slider 111 to slide back into the guide bracket 104, and the guide bracket 104 can be released.

[0071] To ensure that the cutter 217 always moves along the axial direction of the mandrel 4 when adjusting the cutting position of the cutter 217, based on the above embodiment, please refer to Figure 2 The cutter moving mechanism 3 includes a second motor 301, a second screw rod 302 and a slide rail 303. The slide rail 303 is extended along the axial direction of the core rod 4. The second motor 301 is connected to the second screw rod 302. The base 201 can be slidably mounted on the second screw rod 302 along the slide rail 303.

[0072] Specifically, a slide rail 303 is provided on the workbench 5 and located at the rear side of the core rod 4, the slide rail 303 extends along the axial direction of the core rod 4, and the length of the slide rail 303 is not less than the length of the core rod 4, the second motor 301 is installed on the workbench 5 at the end of the slide rail 303, the rear side of the base 201 is located on the slide rail 303, and the front side is placed under the core rod 4, and the base 201 is sleeved on the second screw rod 302, and the second screw rod 302 is connected to the output shaft of the second motor 301. When adjusting the cutting position of the cutter 217, the cutter 217 can always move along the axial direction of the core rod 4, so that the cutter 217 can always cut the pipe perpendicularly, and the operator does not need to repeatedly adjust the verticality of the cutter 217, thereby ensuring the cutting quality of the pipe while improving the cutting efficiency.

[0073] To achieve automatic cutting of pipes, please refer to Figure 1 The present application further includes a control unit 6, the control unit 6 signals connecting the tube rotating mechanism 1, the cutter feeding mechanism 2 and the cutter moving mechanism 3.

[0074] Specifically, the control unit 6 includes a controller, which is electrically connected to the third motor 102 in the pipe rotating mechanism 1, the first motor 205 in the cutter feeding mechanism 2, and the second motor 301 in the cutter moving mechanism 3, so as to control the corresponding cutter 217 to move forward and backward according to the outer diameter of the pipe and the required cutting length, that is, to control the feed amount of the cutter 217 and to move left and right, that is, to control the cutting length, thereby not only improving the pipe cutting quality, but also improving the cutting efficiency.

[0075] Further, to improve the accuracy of pipe cutting length, please refer to Figure 2 A proximity switch 304 electrically connected to the controller is provided on the slide rail 303 for detecting the specific position of the cutter 217 in the axial direction of the pipe and transmitting the position to the controller, so that the controller can determine whether the cutter 217 reaches the set pipe cutting position, thereby accurately controlling the pipe cutting length.

[0076] Optionally, the control unit 6 also includes a touch panel arranged on the workbench 5, and the touch panel is connected to the controller signal to facilitate the operator to adjust and set the feed amount and cutting length of the cutter 217.

[0077] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0078] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0079] The above is a detailed introduction to an endoscopic tube cutting device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An endoscope tube cutting device, characterized in that: include: A pipe rotating mechanism (1) comprises two clamping assemblies arranged symmetrically and at intervals and a mandrel (4) located between the two clamping assemblies, the outer circumference of the mandrel (4) being used for coaxially sleeved pipes, and the two clamping assemblies being used for clamping the mandrel (4) and the pipes to rotate together; A cutter feeding mechanism (2), comprising a base (201), a driving assembly and a slide (202) both arranged on the base (201), and a cutter guide seat (203) arranged on the slide (202); a cutter (217) arranged perpendicular to the axial direction of the mandrel (4) is provided on the side of the cutter guide seat (203) facing the mandrel (4); a side of the cutter guide seat (203) facing away from the mandrel (4) is connected to the slide (202) via an elastic buffer (204); the driving assembly is connected to the slide (202) and is used to drive the slide (202) to reciprocate along an axial direction perpendicular to the mandrel (4); The cutter moving mechanism (3) is connected to the base (201) and is used to drive the base (201) to move back and forth along the axial direction of the core rod (4).

2. The endoscope tube cutting device according to claim 1, characterized in that: A baffle (213) is provided at the top end of the slide seat (202) on the side facing away from the core rod (4), and a locking bolt (214) is passed through the baffle plate (213). The cutter guide seat (203) is located at the top end of the slide seat (202) and is passed through by a locking nut bolt (215). The cutter guide seat (203) is connected to the baffle plate (213) by locking and fitting the locking nut bolt (215) and the locking nut bolt (214), and a buffer gap is left between the cutter guide seat (203) and the baffle plate (213), and the elastic buffer (204) is located in the buffer gap.

3. The endoscope tube cutting device according to claim 1, characterized in that: The cutter guide seat (203) is provided with two symmetrically arranged clamping plates (216) on one side facing the core rod (4), and a gap is left between the two clamping plates (216). A support (218) is provided in the gap and is arranged along the axial direction of the core rod (4). The end of the support (218) is rotatably connected to the clamping plate (216) through a first bearing (219), and the cutter (217) is sleeved on the support (218) and extends out of the gap.

4. The endoscope tube cutting device according to claim 3, characterized in that: The opposite sides of the two clamping plates (216) are each provided with a base surface located directly below the cutter (217), and a cutter slit (221) for avoiding the cutter (217) is provided on one side of the base surface close to the cutter (217).

5. The endoscope tube cutting device according to claim 1, characterized in that: The base (201) is provided with a first bearing seat (208), a second bearing seat (209) and a third bearing seat (210) in sequence and at intervals along an axial direction perpendicular to the core rod (4), and the interval between the second bearing seat (209) and the third bearing seat (210) is used to place the cutter (217); The driving assembly comprises a first motor (205) and a first screw rod (206), wherein the first motor (205) is arranged on the first bearing seat (208), the first screw rod (206) is connected to the first motor (205), and the first screw rod (206) passes through the second bearing seat (209) along an axial direction perpendicular to the mandrel (4) and is arranged on the third bearing seat (210); Guide rods (211) are symmetrically arranged between the second bearing seat (209) and the third bearing seat (210) and are located on both sides of the first screw rod (206), and the guide rods (211) are arranged parallel to the first screw rod (206), and the cutter guide seat (203) can be slidably inserted into the first screw rod (206) and the guide rods (211).

6. The endoscope tube cutting device according to claim 5, characterized in that: A rolling element (212) is provided at a position of the third bearing seat (210) facing the cutter (217), and the rolling element (212) extends a certain length along the axial direction of the mandrel (4) and can rotate along with the mandrel (4).

7. The endoscope tube cutting device according to claim 1, characterized in that: One of the clamping components comprises a motor support (101), a third motor (102) and a first three-jaw chuck (103), wherein the third motor (102) is arranged on the motor support (101) and connected to the first three-jaw chuck (103); Another clamping assembly comprises a guide bracket (104) and a second three-jaw chuck (105), wherein the second three-jaw chuck (105) is rotatably arranged on the guide bracket (104) and is located at the same height as the first three-jaw chuck (103), and the first three-jaw chuck (103) and the second three-jaw chuck (105) are used to clamp the mandrel (4) and the pipe, and the guide bracket (104) is movably arranged along the axial direction of the mandrel (4).

8. The endoscope tube cutting device according to claim 7, characterized in that: A cavity is provided at the top of the guide bracket (104), and a first coupling (106), a connecting shaft (107) and a second bearing (108) are provided in the cavity; the second three-jaw chuck (105) is connected to the connecting shaft (107) via the coupling, and both ends of the connecting shaft (107) are sleeved with the second bearing (108).

9. The endoscope tube cutting device according to claim 7, characterized in that: The bottom end surface of the guide bracket (104) is provided with a slide groove (109), and the slide groove (109) is arranged to extend along the axial direction of the core rod (4) and is slidably matched with the slide bar (110); A first sliding block (111) capable of vertical sliding is provided in the guide bracket (104), and the sliding groove (109) is provided with a notch for the first sliding block (111) to slide out of the guide bracket (104), and when the first sliding block (111) slides out of the guide bracket (104), the first sliding block (111) squeezes the sliding bar (110) to lock the guide bracket (104).

10. The endoscope tube cutting device according to any one of claims 1 to 9, characterized in that: It also includes a control unit (6), wherein the control unit (6) is connected to the pipe rotating mechanism (1), the cutter feeding mechanism (2) and the cutter moving mechanism (3) by signals.

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