Pipe cutting machine tool and using method

Abstract

The invention discloses a pipe cutting machine tool and a using method, and relates to the technical field of pipe cutting equipment, a machine body is sequentially provided with a movable chuck, a fixed chuck and a laser cutting mechanism in the transverse direction, the machine body is provided with a first transverse moving mechanism and a second transverse moving mechanism, the first transverse moving mechanism is higher than the fixed chuck, and the second transverse moving mechanism is lower than the fixed chuck; a first lifting mechanism is arranged on the first transverse moving mechanism, a second lifting mechanism is arranged on the second transverse moving mechanism, movable chucks are arranged on the first lifting mechanism and the second lifting mechanism, and the first lifting mechanism and the second lifting mechanism are used for driving the movable chucks to ascend and descend to the height where the fixed chuck is located; the using method includes the steps that when a previous pipe is about to be cut, a next pipe is clamped by the movable chucks in advance and waits for conveying, and the two movable chucks can alternately convey the pipes to the fixed chuck. According to the pipe cutting device, the feeding connection time of two adjacent pipes can be shortened, continuous cutting of the pipes is achieved, and the cutting efficiency of the pipes can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe cutting equipment, in particular to a pipe cutting machine tool and a use method thereof. Background Art

[0002] Pipe cutting machines are industrial equipment used to cut metal pipes, achieving precise cutting through mechanical or laser methods.

[0003] Currently, the pipe cutting machine includes a machine body, on which a movable chuck, a fixed chuck and a laser cutting mechanism are sequentially arranged along the horizontal direction. The movable chuck and the fixed chuck are used to clamp the pipe together. The pipe extends from the side of the fixed chuck away from the movable chuck. The part of the pipe extending from the fixed chuck is cut by the laser cutting mechanism. Each time a cut is completed, the movable chuck is required to drive the pipe to continue to move horizontally toward the fixed chuck.

[0004] When the current pipe is cut, the movable chuck needs to move in the opposite direction away from the fixed chuck, leaving enough length between the movable chuck and the fixed chuck to accommodate the next pipe to be cut, and then the movable chuck clamps the next pipe to be cut and transports it to the fixed chuck.

[0005] Since the movable chuck needs to move backward and away from the fixed chuck before it can clamp the next pipe to be cut, the process of the movable chuck moving backward prolongs the loading and connection time of two adjacent pipes, resulting in the pipe cutting efficiency needs to be improved. Summary of the Invention

[0006] The present invention aims to overcome the above-mentioned deficiencies in the prior art and provides a pipe cutting machine and a method for using the same. The present invention can shorten the loading and connection time between two adjacent pipes, achieve continuous cutting of the pipes, and help improve the cutting efficiency of the pipes.

[0007] To achieve the above object, the present invention provides the following technical solutions: A pipe cutting machine comprises a machine body, on which a movable chuck, a fixed chuck and a laser cutting mechanism are sequentially arranged in the transverse direction; a first transverse movement mechanism and a second transverse movement mechanism are arranged on the machine body, the first transverse movement mechanism is higher than the fixed chuck, and the second transverse movement mechanism is lower than the fixed chuck; a first lifting mechanism is arranged on the first transverse movement mechanism, and a second lifting mechanism is arranged on the second transverse movement mechanism; a movable chuck is arranged on the first lifting mechanism and the second lifting mechanism; the first lifting mechanism and the second lifting mechanism are used to drive the movable chuck to rise and fall to the height of the fixed chuck, and the two movable chucks alternately convey pipes to the fixed chuck.

[0008] Furthermore, a avoidance mechanism is provided on the front side of the fuselage, the fixed chuck is provided on the avoidance mechanism, and the avoidance mechanism is used to adjust the lateral position of the fixed chuck.

[0009] Furthermore, a support mechanism is provided on the front side of the fuselage, and the support mechanism includes a support clamp, and the support clamp is used to clamp the pipe to the height of the fixed chuck.

[0010] Furthermore, a receiving cavity is provided on the front side of the fuselage, and the support mechanism also includes a support driving member, which is provided in the receiving cavity and is used to drive the support clamp to enter and exit the receiving cavity along the longitudinal direction.

[0011] Furthermore, the supporting fixture includes a dual-output cylinder, which includes a cylinder body, a first piston rod arranged at the upper end of the cylinder body, and a second piston rod arranged at the lower end of the cylinder body. The first piston rod is provided with a first clamping seat, and the second piston rod is provided with a second clamping seat. The first clamping seat and the second clamping seat clamp the pipe in a vertical direction.

[0012] Furthermore, a feeding mechanism is provided on the front side of the fuselage, and the feeding mechanism includes a fixed material rack, a movable material rack and a feeding drive. The feeding drive is used to drive the movable material rack to move longitudinally on the fixed material rack. The movable material rack is higher than the second transverse movement mechanism. The top surface of the movable material rack is provided with a slope, and a plurality of pipes are placed on the surface of the slope. The bottom end of the slope is close to the fuselage, and the top and bottom ends of the slope are provided with limiting structures. The limiting structure is used to prevent the pipe from falling, and the bottom end of the slope is lower than the fixed chuck.

[0013] A method for using a pipe cutting machine tool, based on the pipe cutting machine tool, includes the following steps when cutting pipes: (1) The movable chuck on the first lifting mechanism descends to the height of the fixed chuck, the movable chuck on the first lifting mechanism clamps the first tube, the first transverse movement mechanism drives the movable chuck on the first lifting mechanism to transport the first tube to the fixed chuck, and the laser cutting mechanism cuts the first tube; (2) When the first pipe is about to be cut, the movable chuck on the second lifting mechanism rises to the height of the fixed chuck, and the movable chuck on the second lifting mechanism clamps the second pipe and waits for transportation; (3) When the first tube is cut, the movable chuck on the first lifting mechanism rises to the initial height, and the first transverse movement mechanism drives the first lifting mechanism to move in the opposite direction and reset. At the same time, the second transverse movement mechanism drives the movable chuck on the second lifting mechanism to transport the second tube to the fixed chuck, and the laser cutting mechanism cuts the second tube; (4) When the second pipe is about to be cut, the movable chuck on the first lifting mechanism descends to the height of the fixed chuck, and the movable chuck on the first lifting mechanism clamps the third pipe and waits for transportation; (5) When the second tube is cut, the movable chuck on the second lifting mechanism drops to the initial height, and the second transverse movement mechanism drives the second lifting mechanism to move in the opposite direction and reset. At the same time, the first transverse movement mechanism drives the movable chuck on the first lifting mechanism to transport the third tube to the fixed chuck, and the laser cutting mechanism cuts the third tube; (6) Repeat steps (2) to (5), with the movable chuck on the first lifting mechanism and the movable chuck on the second lifting mechanism alternately conveying the pipe to the fixed chuck until the target number of pipes is cut.

[0014] A method for using a pipe cutting machine is disclosed. Based on the pipe cutting machine, when the fixed chuck interferes with the laser cutting mechanism in cutting the tail of the pipe, the movable chuck maintains the state of clamping the pipe, the fixed chuck releases the clamping state of the pipe, the avoidance mechanism drives the fixed chuck to move laterally away from the pipe, the laser cutting mechanism cuts the tail of the pipe clamped on the movable chuck, and after the cutting is completed, the movable chuck releases the pipe.

[0015] A method for using a pipe cutting machine is provided. Based on the pipe cutting machine, when the movable chuck clamps the pipe, the supporting fixture clamps the pipe to the height of the fixed chuck, and the first transverse movement mechanism or the second transverse movement mechanism drives the movable chuck to move transversely close to the pipe until the movable chuck clamps the pipe.

[0016] A method for using a pipe cutting machine, based on the pipe cutting machine, when conveying pipes to the support mechanism, the feeding drive drives the movable material rack to approach the machine body in the longitudinal direction, the support clamp clamps the pipe at the lowest position on the slope, the support clamp clamps the pipe to the height of the fixed chuck, and the feeding drive drives the movable material rack to move longitudinally in the opposite direction to reset.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting the first transverse movement mechanism, the second transverse movement mechanism, the first lifting mechanism, the second lifting mechanism and the two movable chucks, when the pipe clamped by a certain movable chuck is about to be cut, the other movable chuck can clamp the next pipe in advance and wait for cutting. The two movable chucks can be driven to continuously and alternately transport pipes to the fixed chuck, shortening the feeding and connection time of two adjacent pipes, realizing continuous cutting of pipes, and helping to improve the cutting efficiency of pipes.

[0018] 2. Because the first transverse moving mechanism and the second transverse moving mechanism are respectively located above and below the fixed chuck, the first lifting mechanism and the second lifting mechanism can adjust the height of the movable chuck, so the vertical space of the fuselage can be fully utilized, which is conducive to improving space utilization.

[0019] 3. The avoidance mechanism is used to adjust the lateral position of the fixed chuck, which can avoid the tail of the pipe, making it easier for the laser cutting mechanism to get closer to the movable chuck, making it easier for the laser cutting mechanism to cut the tail of the pipe, and improving the utilization rate of the tail of the pipe, which is conducive to reducing waste and saving resources.

[0020] 4. When the movable chuck clamps the next pipe to be cut, the support mechanism can provide stable support for the next pipe to be cut, thereby improving the accuracy of the movable chuck in clamping the pipe.

[0021] 5. By setting a receiving cavity for accommodating the support mechanism on the front side of the machine body, the entire machine tool structure can be made more compact, which is conducive to improving space utilization.

[0022] 6. The movable rack in the feeding mechanism can not only store the pipes, but also deliver the next pipe to be cut to the support mechanism. The feeding mechanism and the support mechanism work together to realize mechanized delivery of pipes to the movable chuck, which is conducive to further improving the efficiency of pipe cutting.

[0023] 7. When the movable rack is driven by the feeding drive to move back and forth on the fixed rack, the pipes placed on the slope of the movable rack can be shaken to prevent the pipes from getting stuck when sliding down to fill the position, thereby ensuring that the pipes can be effectively filled downward, improving feeding reliability and ensuring feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of a pipe cutting machine; Figure 2 A three-dimensional pipe cutting machine tool after removing the feeding mechanism Figure 1 ; Figure 3 A three-dimensional pipe cutting machine tool after removing the feeding mechanism Figure 2 ; Figure 4 This is the front view of a pipe cutting machine after removing the feeding mechanism; Figure 5 A perspective view of a pipe cutting machine tool after removing the support mechanism, feeding mechanism, laser cutting mechanism and fixed chuck; Figure 6 It is a three-dimensional structure of the first transverse movement mechanism, the second transverse movement mechanism, the first lifting mechanism, the second lifting mechanism and the movable chuck. Figure 1 ; Figure 7 It is a three-dimensional structure of the first transverse movement mechanism, the second transverse movement mechanism, the first lifting mechanism, the second lifting mechanism and the movable chuck. Figure 2 ; Figure 8 is a three-dimensional diagram of a movable chuck; Figure 9 Three-dimensional structure for fixing the chuck and avoidance mechanism Figure 1 ; Figure 10 Three-dimensional structure for fixing the chuck and avoidance mechanism Figure 2 ; Figure 11 Three-dimensional structure for fixing the chuck and avoidance mechanism Figure 3 ; Figure 12 It is the main view of the fixed chuck and avoidance mechanism; Figure 13 A three-dimensional diagram of the support mechanism; Figure 14 It is the right side view of the supporting mechanism; Figure 15 It is a three-dimensional diagram of the feeding mechanism; Figure 16 It is a schematic diagram of the use of the feeding mechanism; Figure 17 This is a three-dimensional diagram of a fixed material rack; Figure 18 Three-dimensional laser cutting mechanism Figure 1 ; Figure 19 Three-dimensional laser cutting mechanism Figure 2 ; Figure 20 Three-dimensional laser cutting mechanism Figure 3 .

[0025] Description of reference numerals: 1- fuselage, 11- receiving chamber, 2- movable chuck, 21- motor frame, 22- movable motor, 23- four-jaw chuck, 3-Fixed chuck, 31-Fixed seat, 32-Rotating cylinder, 33-Rotating motor, 34-Rotating gear, 35-Gear ring, 36-Fixed cylinder, 37-Clamping rod, 4-laser cutting mechanism, 41-gantry, 421-longitudinal movement motor, 422-longitudinal movement screw, 423-longitudinal movement seat, 424-longitudinal movement nut seat, 431-vertical movement motor, 432-vertical movement screw, 433-vertical movement seat, 434-vertical movement nut seat, 44-laser, 5a-first transverse movement mechanism, 5b-second transverse movement mechanism, 51-transverse movement motor, 52-transverse movement gear, 53-transverse movement rack, 54-transverse movement seat, 6a-first lifting mechanism, 6b-second lifting mechanism, 61-lifting cylinder, 62-lifting seat, 63-guide rod, 64-guide seat, 7-avoidance mechanism, 71-avoidance motor, 72-avoidance screw, 73-avoidance seat, 74-avoidance nut seat, 8-support mechanism, 81-support cylinder, 811-support plate, 82-dual output cylinder, 821-first clamping seat, 822-second clamping seat, 9-feeding mechanism, 91-fixed material rack, 92-movable material rack, 921-slope, 922-limiting structure, 93-feeding cylinder, 10-Pipes. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] Example 1: See also Figure 1 , a pipe cutting machine tool includes a machine body 1.

[0028] See also Figure 2 and Figure 3 The front side of the fuselage 1 is provided with a movable chuck 2, a fixed chuck 3 and a laser cutting mechanism 4 in sequence along the horizontal direction.

[0029] See also Figure 8 The movable chuck 2 includes a motor frame 21, a movable motor 22, and a four-jaw chuck 23. The movable motor 22 is fixedly mounted within the motor frame 21. The output shaft of the movable motor 22 extends from the motor frame 21. The four-jaw chuck 23 is fixedly mounted on the output shaft of the movable motor 22. The four-jaw chuck 23 is used to clamp the tail end of the pipe 10. When the movable motor 22 is started, the output shaft of the movable motor 22 drives the four-jaw chuck 23 to rotate, which in turn drives the pipe 10 to rotate, thereby causing the pipe 10 to rotate.

[0030] In addition to using the four-jaw chuck 23, it can also be replaced with a three-jaw chuck. Both the four-jaw chuck 23 and the three-jaw chuck are existing products and can be purchased directly.

[0031] See also Figure 9 、 Figure 10 、 Figure 11 and Figure 12The fixed chuck 3 includes a fixed base 31, a rotating cylinder 32, a rotating motor 33, a rotating gear 34, a ring gear 35, a fixed cylinder 36, and a clamping rod 37. The rotating cylinder 32 is rotatably mounted in the fixed base 31 via a bearing. The rotating motor 33 is fixedly mounted on the fixed base 31. The rotating gear 34 is fixedly mounted on the output shaft of the rotating motor 33. The rotating gear 34 meshes with the ring gear 35. The ring gear 35 is coaxially fixed to the outer wall of the rotating cylinder 32. Four fixed cylinders 36 are fixedly mounted on the outer wall of the rotating cylinder 32 in a circumferential direction. The piston rods of the fixed cylinders 36 extend into the inner cavity of the rotating cylinder 32. The clamping rods 37 are fixedly mounted on the piston rods of the fixed cylinders 36.

[0032] When the fixed chuck 3 is used to clamp the tubular material 10, the tubular material 10 passes through the inner cavity of the rotating drum 32, and the piston rod of the fixed cylinder 36 extends, causing the clamping rod 37 to clamp the outer wall of the tubular material 10. When the rotary motor 33 is activated, the output shaft of the rotary motor 33 drives the rotary gear 34 to rotate. The rotary gear 34 drives the ring gear 35 to rotate, and the ring gear 35 drives the rotary drum 32 to rotate. The rotary drum 32 rotates while clamping the tubular material 10, causing the tubular material 10 to rotate.

[0033] See also Figure 2 and Figure 3 When the laser cutting mechanism 4 is used to cut the tube 10, the tube 10 extends from the side of the fixed chuck 3 away from the movable chuck 2. The portion of the tube 10 extending from the fixed chuck 3 is cut by the laser cutting mechanism 4. Furthermore, when cutting the tube 10, the movable chuck 2 and the fixed chuck 3 need to synchronously drive the tube 10 to rotate, ensuring that the laser cutting mechanism 4 cuts the tube 10 along its circumference. Furthermore, by synchronously driving the movable chuck 2 and the fixed chuck 3 to rotate the tube 10, the tube 10's head and tail are rotated synchronously, which helps improve stability during cutting of the tube 10.

[0034] When the tube 10 is advanced, first, the piston rod of the fixed cylinder 36 in the fixed chuck 3 retracts, causing the clamping rod 37 to release the tube 10; then, the movable chuck 2 drives the tube 10 to feed horizontally, and the tube 10 passes through the inner cavity of the rotary cylinder 32 in the fixed chuck 3; when the tube 10 is fed to the target length, the piston rod of the fixed cylinder 36 extends, causing the clamping rod 37 to re-clamp the tube 10 and wait for cutting.

[0035] See also Figure 1A first transverse mechanism 5a and a second transverse mechanism 5b are provided on the front side of the machine body 1. The first transverse mechanism 5a is higher than the fixed chuck 3, while the second transverse mechanism 5b is lower than the fixed chuck 3. A first lifting mechanism 6a is provided on the first transverse mechanism 5a, and a second lifting mechanism 6b is provided on the second transverse mechanism 5b. The movable chuck 2 is provided on both the first lifting mechanism 6a and the second lifting mechanism 6b. The first lifting mechanism 6a and the second lifting mechanism 6b are used to drive the movable chuck 2 to the height of the fixed chuck 3.

[0036] See also Figure 6 and Figure 7 , the first transverse movement mechanism 5a and the second transverse movement mechanism 5b have the same structure. The first transverse movement mechanism 5a and the second transverse movement mechanism 5b both include a transverse movement motor 51, a transverse movement gear 52, a transverse movement rack 53 and a transverse movement seat 54. The transverse movement seat 54 is slidably connected to the front side wall of the fuselage 1 in the transverse direction. The transverse movement motor 51 adopts a servo motor, and the transverse movement motor 51 is fixedly mounted on the transverse movement seat 54. A transverse movement gear 52 is fixedly mounted on the output shaft of the transverse movement motor 51, and the transverse movement gear 52 is engaged with the transverse movement rack 53, and the transverse movement rack 53 is fixedly mounted on the front side wall of the fuselage 1. When the transverse movement motor 51 drives the transverse movement gear 52 to rotate, the transverse movement gear 52 actively moves along the transverse movement rack 53, and the transverse movement gear 52 drives the transverse movement seat 54 to actively move laterally.

[0037] See also Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The first and second lifting mechanisms 6a and 6b have the same structure. Each of the first and second lifting mechanisms 6a and 6b includes a lifting cylinder 61, a lifting seat 62, a guide rod 63, and a guide seat 64. The lifting cylinder 61 is fixedly mounted on the traversing seat 54. The lifting seat 62 is fixedly mounted on the piston rod of the lifting cylinder 61. A guide seat 64 is fixedly mounted on the side of the lifting seat 62. The guide rod 63 is fixedly mounted on the traversing seat 54. The guide seat 64 vertically slides with the guide rod 63. When the lifting cylinder 61 drives the lifting seat 62 up and down, the guide seat 64 slides along the guide rod 63.

[0038] See also Figure 5 and Figure 6 The piston rod of the lifting cylinder 61 in the first lifting mechanism 6a is set downward, and the piston rod of the lifting cylinder 61 in the second lifting mechanism 6b is set upward. The motor frame 21 in the movable chuck 2 is fixedly installed on the lifting seat 62.

[0039] exist Figure 1 、 Figure 2 、 Figure 3 and Figure 4In the state shown, the movable chuck 2 on the second lifting mechanism 6b rises to the height of the fixed chuck 3, and the movable chuck 2 on the second lifting mechanism 6b clamps the pipe 10 that is undergoing cutting; and the movable chuck 2 on the first lifting mechanism 6a descends to the height of the fixed chuck 3, and the movable chuck 2 on the first lifting mechanism 6a clamps the next pipe 10 to be cut.

[0040] Example 2: A method for using a pipe cutting machine tool, based on a pipe cutting machine tool of Example 1, includes the following steps when cutting a pipe 10: (1) The movable chuck 2 on the first lifting mechanism 6a descends to the height of the fixed chuck 3; the movable chuck 2 on the first lifting mechanism 6a clamps the first tube 10; the first transverse movement mechanism 5a drives the movable chuck 2 on the first lifting mechanism 6a to approach the fixed chuck 3, so that the movable chuck 2 on the first lifting mechanism 6a conveys the first tube 10 to the fixed chuck 3; the movable chuck 2 and the fixed chuck 3 on the first lifting mechanism 6a clamp and drive the first tube 10 to rotate together, and the laser cutting mechanism 4 cuts the first tube 10.

[0041] Whenever the laser cutting mechanism 4 cuts off a portion from the first tube 10 , the first tube 10 needs to be continuously conveyed toward the laser cutting mechanism 4 .

[0042] When the pipe 10 is advanced: the piston rod of the fixed cylinder 36 in the fixed chuck 3 retracts, causing the clamping rod 37 to release the pipe 10; then, the first transverse movement mechanism 5a drives the movable chuck 2 on the first lifting mechanism 6a to drive the pipe 10 to feed laterally, and the pipe 10 passes laterally through the inner cavity of the rotary cylinder 32 in the fixed chuck 3; when the pipe 10 is fed to the target length, the piston rod of the fixed cylinder 36 extends, causing the clamping rod 37 to re-clamp the pipe 10, thereby completing the advancement process.

[0043] Each time the advancement process of the tube 10 is completed, the movable chuck 2 and the fixed chuck 3 on the first lifting mechanism 6 a continue to drive the first tube 10 to rotate, and the laser cutting mechanism 4 continues to cut the first tube 10 .

[0044] (2) When the first pipe 10 is about to be cut, the movable chuck 2 on the second lifting mechanism 6b rises to the height of the fixed chuck 3, and the movable chuck 2 on the second lifting mechanism 6b clamps the second pipe 10 and waits for transportation.

[0045] (3) When the first tube 10 is cut, the movable chuck 2 on the first lifting mechanism 6a rises to the initial height (i.e., higher than the height of the fixed chuck 3), and the first transverse movement mechanism 5a drives the first lifting mechanism 6a to move transversely in the opposite direction and reset (i.e., away from the transverse position of the fixed chuck 3); at the same time, the second transverse movement mechanism 5b drives the movable chuck 2 of the second lifting mechanism 6b to approach the fixed chuck 3, and the movable chuck 2 on the second lifting mechanism 6b conveys the second tube 10 to the fixed chuck 3; the movable chuck 2 and the fixed chuck 3 on the second lifting mechanism 6b clamp and drive the second tube 10 to rotate together, and the laser cutting mechanism 4 cuts the second tube 10; Whenever the laser cutting mechanism 4 cuts off a portion from the second tube 10 , the second tube 10 needs to be continuously conveyed toward the laser cutting mechanism 4 .

[0046] When the pipe 10 is advanced: the piston rod of the fixed cylinder 36 in the fixed chuck 3 retracts, causing the clamping rod 37 to release the pipe 10; then, the second transverse movement mechanism 5b drives the movable chuck 2 on the second lifting mechanism 6b to drive the pipe 10 to feed laterally, and the pipe 10 moves laterally in the rotary cylinder 32 in the fixed chuck 3; when the pipe 10 is fed to the target length, the piston rod of the fixed cylinder 36 extends, causing the clamping rod 37 to re-clamp the pipe 10.

[0047] Each time the advancement process of the tube 10 is completed, the movable chuck 2 and the fixed chuck 3 on the second lifting mechanism 6 b continue to drive the second tube 10 to rotate, and the laser cutting mechanism 4 continues to cut the second tube 10 .

[0048] (4) When the second pipe 10 is about to be cut, the movable chuck 2 on the first lifting mechanism 6a drops to the height of the fixed chuck 3, and the movable chuck 2 on the first lifting mechanism 6a clamps the third pipe 10 and waits for transportation. Figure 4 .

[0049] (5) When the second tube 10 is cut, the movable chuck 2 on the second lifting mechanism 6b drops to the initial height (i.e., lower than the height of the fixed chuck 3), and the second transverse movement mechanism 5b drives the second lifting mechanism 6b to move transversely in the opposite direction and reset (i.e., away from the transverse position of the fixed chuck 3); at the same time, the first transverse movement mechanism 5a drives the movable chuck 2 on the first lifting mechanism 6a to approach the fixed chuck 3, and the movable chuck 2 on the first lifting mechanism 6a conveys the third tube 10 to the fixed chuck 3, and the laser cutting mechanism 4 cuts the third tube 10; (6) Repeat steps (2) to (5), and the movable chuck 2 on the first lifting mechanism 6a and the movable chuck 2 on the second lifting mechanism 6b alternately convey the pipe 10 to the fixed chuck 3 until the target number of pipes 10 are cut.

[0050] From the above introduction, it can be seen that a pipe cutting machine and its use method have the following advantages: First, by setting up the first transverse movement mechanism 5a, the second transverse movement mechanism 5b, the first lifting mechanism 6a, the second lifting mechanism 6b and the two movable chucks 2, when the pipe 10 clamped by a certain movable chuck 2 is about to be cut, the other movable chuck 2 can clamp the next pipe 10 in advance and wait for cutting, and can drive the two movable chucks 2 to continuously and alternately transport the pipe 10 to the fixed chuck 3, shortening the loading and connection time of the two adjacent pipes 10, realizing continuous cutting of the pipe 10, and helping to improve the cutting efficiency of the pipe 10.

[0051] Second, because the first transverse movement mechanism 5a and the second transverse movement mechanism 5b are respectively located above and below the fixed chuck 3, the first lifting mechanism 6a and the second lifting mechanism 6b can adjust the height of the movable chuck 2, so the vertical space of the fuselage 1 can be fully utilized, which is conducive to improving space utilization.

[0052] Example 3: This embodiment 3 is further improved on the basis of embodiment 2: See also Figure 1 The front side of the fuselage 1 is provided with an avoidance mechanism 7. The avoidance mechanism 7 is provided with the fixed chuck 3, and the avoidance mechanism 7 is used to adjust the lateral position of the fixed chuck 3 to avoid the tail of the pipe 10, so as to facilitate the laser cutting mechanism 4 to cut the tail of the pipe 10.

[0053] See also Figure 9 、 Figure 10 、 Figure 11 and Figure 12 The avoidance mechanism 7 includes a avoidance motor 71, a avoidance screw 72, a avoidance seat 73 and a avoidance nut seat 74. The avoidance motor 71 adopts a servo motor, and the avoidance motor 71 is fixedly mounted on the front side of the fuselage 1. Both ends of the avoidance screw 72 are rotatably mounted on the front side of the fuselage 1 through bearings, and one end of the avoidance screw 72 is fixedly mounted together with the output shaft of the avoidance motor 71. The avoidance seat 73 is slidably connected to the fuselage 1 in the horizontal direction, and a avoidance nut seat 74 is fixedly mounted on the avoidance seat 73, and the avoidance nut seat 74 is threadedly connected to the avoidance screw 72. The fixed seat 31 in the fixed chuck 3 is fixedly mounted on the avoidance seat 73.

[0054] When using the avoidance mechanism 7 to adjust the lateral position of the fixed chuck 3, the avoidance motor 71 drives the avoidance screw 72 to rotate, the avoidance screw 72 drives the avoidance nut seat 74 threadedly connected to it to move laterally, the avoidance nut seat 74 drives the avoidance seat 73 to move laterally, and the avoidance seat 73 drives the fixed chuck 3 to move laterally, thereby realizing the adjustment of the lateral position of the fixed chuck 3.

[0055] Tube 10 is clamped by both the movable chuck 2 and the fixed chuck 3. As the laser cutting mechanism 4 continuously cuts tube 10, its length decreases, necessitating further advancement of tube 10. To advance tube 10, the fixed chuck 3 releases the tube 10. The movable chuck 2 then drives the tube 10 laterally to the target position. The fixed chuck 3 then re-engages the tube 10, and the fixed chuck 3 and movable chuck 2 synchronize and drive the tube 10 for rotation.

[0056] When only the tail of the tube 10 remains to be cut, the tube 10 is too short to extend from the fixed chuck 3, causing the fixed chuck 3 to block the tail of the tube 10. That is, the fixed chuck 3 prevents the laser cutting mechanism 4 from cutting the tail of the tube 10. At this time, to cut the tail of the tube 10, the following steps are required: first, the movable chuck 2 maintains the state of clamping the tube 10, and the fixed chuck 3 releases the clamping state of the tube 10; then, the avoidance mechanism 7 drives the fixed chuck 3 to move laterally away from the movable chuck 2; then, the laser cutting mechanism 4 cuts the tail of the tube 10 clamped on the movable chuck 2; finally, after the cutting is completed, the movable chuck 2 releases the tube 10.

[0057] From the above introduction, it can be seen that the avoidance mechanism 7 is used to adjust the lateral position of the fixed chuck 3, which can avoid the tail of the pipe 10, facilitate the laser cutting mechanism 4 to be closer to the movable chuck 2, facilitate the laser cutting mechanism 4 to cut the tail of the pipe 10, and improve the utilization rate of the tail of the pipe 10, which is conducive to reducing waste and saving resources.

[0058] Example 4: This embodiment 4 is based on embodiment 2 and is further improved: See also Figure 4 and Figure 5 A support mechanism 8 is provided on the front side of the body 1. The support mechanism 8 includes a support fixture and a support driver. The support fixture is used to clamp the pipe 10 to the height of the fixed chuck 3. The support driver is provided in a receiving cavity 11 provided on the front side of the body 1. The support driver is used to drive the support fixture to move in and out of the receiving cavity 11 in the longitudinal direction.

[0059] See also Figure 13 and Figure 14 The supporting driving member adopts a supporting cylinder 81. The supporting cylinder 81 is fixedly installed in the receiving chamber 11, and a supporting plate 811 is fixedly installed on the piston rod of the supporting cylinder 81.

[0060] See also Figure 14The support fixture includes a dual-output cylinder 82. The dual-output cylinder 82 comprises a cylinder body, a first piston rod located at the upper end of the cylinder body, and a second piston rod located at the lower end of the cylinder body. The cylinder body is fixedly mounted on a support plate 811. A first clamping seat 821 is fixedly mounted to the first piston rod, and a second clamping seat 822 is fixedly mounted to the second piston rod. Both the first clamping seat 821 and the second clamping seat 822 are vertically slidably connected to the support plate 811. The first clamping seat 821 and the second clamping seat 822 vertically clamp the pipe 10.

[0061] The working principle of this embodiment 4 is as follows: When the pipe 10 held by the movable chuck 2 on the first lifting mechanism 6a is about to be cut, the movable chuck 2 on the second lifting mechanism 6b needs to clamp the next pipe 10 and wait for cutting. Similarly, when the pipe 10 held by the movable chuck 2 on the second lifting mechanism 6b is about to be cut, the movable chuck 2 on the first lifting mechanism 6a also needs to clamp the next pipe 10 and wait for cutting.

[0062] When the movable chuck 2 is used to clamp the next pipe 10 to be cut, the piston rod of the support cylinder 81 drives the support plate 811 to extend from the receiving chamber 11, and the support plate 811 drives the dual-output cylinder 82 to extend from the receiving chamber 11; the first piston rod and the second piston rod of the dual-output cylinder 82 are both extended outward, so that the distance between the first clamping seat 821 and the second clamping seat 822 is increased, so that the pipe 10 can enter between the first clamping seat 821 and the second clamping seat 822; the staff or the industrial robot places the pipe 10 to be cut on the second clamping seat 822 On; the first piston rod and the second piston rod of the dual-output cylinder 82 are retracted into the cylinder body, so that the pipe 10 placed on the second clamping seat 822 is clamped by the first clamping seat 821 and the second clamping seat 822 from the vertical direction, and the height of the pipe 10 is raised to the height of the fixed chuck 3; the first lifting mechanism 6a or the second lifting mechanism 6b drives the movable chuck 2 to rise and fall to the height of the pipe 10, and the first transverse movement mechanism 5a or the second transverse movement mechanism 5b drives the movable chuck 2 to approach the tail section of the pipe 10 until the movable chuck 2 clamps the pipe 10.

[0063] When the pipe 10 clamped by the movable chuck 2 begins to be conveyed to the fixed chuck 3, the first piston rod and the second piston rod of the dual-output cylinder 82 both extend outward, so that the first clamping seat 821 and the second clamping seat 822 release the pipe 10; the piston rod of the support cylinder 81 drives the support plate 811 to retract into the accommodating chamber 11, and the support plate 811 drives the dual-output cylinder 82 to retract into the accommodating chamber 11, so that the pipe 10 can avoid being obstructed by the support mechanism 8 when being conveyed to the fixed chuck 3.

[0064] From the above introduction, it can be seen that when the movable chuck 2 clamps the next pipe 10 to be cut, the support mechanism 8 can provide stable support to the next pipe 10 to be cut, thereby improving the accuracy of the movable chuck 2 in clamping the pipe 10.

[0065] By providing a receiving cavity 11 for receiving the supporting mechanism 8 on the front side of the machine body 1, the entire machine tool structure can be made more compact, which is conducive to improving space utilization.

[0066] Example 5: This embodiment 5 is based on the embodiment 4, and is further improved: See also Figure 1 A feeding mechanism 9 is provided on the front side of the fuselage 1 .

[0067] See also Figure 15 、 Figure 16 and Figure 17 The feeding mechanism 9 includes a fixed material rack 91, a movable material rack 92, and a feeding drive. The feeding drive is a feeding cylinder 93, which is fixedly mounted on the top of the fixed material rack 91. The piston rod of the feeding cylinder 93 is fixedly connected to the movable material rack 92. The movable material rack 92 is slidably connected to the fixed material rack 91 in the longitudinal direction. The feeding cylinder 93 is used to drive the movable material rack 92 to slide longitudinally on the fixed material rack 91. The top surface of the movable material rack 92 is provided with a slope 921, on which a number of pipes 10 are placed. The top and bottom ends of the slope 921 are fixedly mounted with a limiting structure 922, which is used to prevent the pipes 10 from falling.

[0068] Also, see Figure 1 The movable material rack 92 is higher than the second transverse movement mechanism 5 b , the bottom end of the slope 921 is close to the fuselage 1 , and the bottom end of the slope 921 is lower than the fixed chuck 3 .

[0069] In the fourth embodiment, the pipe 10 to be cut is delivered to the support mechanism 8 by a worker or an industrial robot. In the fifth embodiment, a feeding mechanism 9 is provided to replace the worker and the industrial robot for feeding. The specific feeding process is as follows: The piston rod of the feeding cylinder 93 extends, pushing the movable material rack 92 longitudinally toward the fuselage 1. The movable material rack 92 drives the pipes 10 on its slope 921 toward the fuselage 1. When the movable material rack 92 moves into position, the lowest pipe 10 on the slope 921 enters between the first clamping seat 821 and the second clamping seat 822. Then, the first clamping seat 821 and the second clamping seat 822 clamp the lowest pipe 10 on the slope 921, so that the pipe 10 is lifted to the height of the fixed chuck 3. The pipe 10 on the slope 921 slides downward under its own gravity to fill the position. The piston rod of the feeding cylinder 93 retracts, driving the movable material rack 92 to move longitudinally in the opposite direction and reset, waiting for the next time to feed the pipe 10 to the support mechanism 8. After the movable material rack 92 is reset, there is enough distance between the movable material rack 92 and the fuselage 1 so as not to hinder the lateral movement of the movable chuck 2.

[0070] As can be seen from the above description, the movable rack 92 in the feeding mechanism 9 can not only store the pipe 10, but also deliver the next pipe 10 to be cut to the support mechanism 8. The feeding mechanism 9 and the support mechanism 8 cooperate to realize mechanized delivery of the pipe 10 to the movable chuck 2, which is conducive to improving the efficiency of cutting the pipe 10.

[0071] Moreover, when the movable material rack 92 is driven by the feeding cylinder 93 to move back and forth longitudinally on the fixed material rack 91, the pipes 10 placed on the slope 921 of the movable material rack 92 can be shaken to prevent the pipes 10 from getting stuck when sliding downward to fill the position, thereby ensuring that the pipes 10 are effectively filled downward, improving feeding reliability and ensuring feeding efficiency.

[0072] Example 6: This embodiment 6 provides the specific structure of the laser cutting mechanism 4 in embodiment 1.

[0073] See also Figure 18 、 Figure 19 and Figure 20 The laser cutting mechanism 4 includes a gantry 41, a longitudinal movement component, a vertical movement component and a laser 44.

[0074] See also Figure 1 The gantry 41 is fixedly mounted on the front side of the fuselage 1 .

[0075] See also Figure 18 and Figure 20The longitudinal movement assembly includes a longitudinal movement motor 421, a longitudinal movement screw 422, a longitudinal movement seat 423, and a longitudinal movement nut seat 424. The longitudinal movement motor 421 is a servo motor and is fixedly mounted on the gantry 41. Both ends of the longitudinal movement screw 422 are rotatably mounted on the gantry 41 via bearings, and one end of the longitudinal movement screw 422 is fixedly mounted to the output shaft of the longitudinal movement motor 421. The longitudinal movement seat 423 is slidably connected to the gantry 41 in the longitudinal direction. The longitudinal movement nut seat 424 is fixedly mounted on the longitudinal movement seat 423, and the longitudinal movement nut seat 424 is threadedly connected to the longitudinal movement screw 422.

[0076] See also Figure 19 and Figure 20 The vertical movement assembly includes a vertical movement motor 431, a vertical movement screw 432, a vertical movement seat 433 and a vertical movement nut seat 434. The vertical movement seat 433 is slidably connected to the longitudinal movement seat 423 in the vertical direction. The vertical movement motor 431 adopts a servo motor, and the vertical movement motor 431 is fixedly mounted on the top of the vertical movement seat 433. Both ends of the vertical movement screw 432 are rotatably mounted on the vertical movement seat 433 through bearings, and the upper end of the vertical movement screw 432 is fixedly mounted to the output shaft of the vertical movement motor 431. A vertical movement nut seat 434 is fixedly mounted on the longitudinal movement seat 423, and the vertical movement nut seat 434 is threadedly connected to the vertical movement screw 432.

[0077] See also Figure 18 The laser 44 is fixedly mounted on the bottom of the vertical moving seat 433 .

[0078] When the longitudinal position of the laser 44 needs to be adjusted, the longitudinal movement motor 421 drives the longitudinal movement screw 422 to rotate, the longitudinal movement screw 422 drives the longitudinal movement nut seat 424 threadedly connected to it to move longitudinally, the longitudinal movement nut seat 424 drives the longitudinal movement seat 423 to move longitudinally, the longitudinal movement seat 423 drives the vertical movement seat 433 to move longitudinally, and the vertical movement seat 433 drives the laser 44 to move longitudinally. When the laser 44 moves to the target longitudinal position, the longitudinal movement motor 421 is turned off.

[0079] When the height of the laser 44 needs to be adjusted, the vertical movement motor 431 drives the vertical movement screw 432 to rotate, the vertical movement screw 432 drives the vertical movement nut seat 434 threadedly connected to it to move vertically, the vertical movement nut seat 434 drives the vertical movement seat 433 to move vertically, and the vertical movement seat 433 drives the laser 44 to move vertically. When the laser 44 moves to the target height, the vertical movement motor 431 is turned off.

[0080] From the above introduction, it can be seen that the laser cutting mechanism 4 of this embodiment 6 can adjust the longitudinal position and height position of the laser 44, can cut the pipe 10 more flexibly, and improves the flexibility of use.

[0081] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A pipe cutting machine tool, comprising a machine body, wherein a movable chuck, a fixed chuck and a laser cutting mechanism are sequentially arranged on the machine body in a transverse direction, characterized in that: The machine body is provided with a first transverse movement mechanism and a second transverse movement mechanism, the first transverse movement mechanism is higher than the fixed chuck, and the second transverse movement mechanism is lower than the fixed chuck, the first transverse movement mechanism is provided with a first lifting mechanism, and the second transverse movement mechanism is provided with a second lifting mechanism, and the first lifting mechanism and the second lifting mechanism are both provided with the movable chuck, and the first lifting mechanism and the second lifting mechanism are used to drive the movable chuck to rise and fall to the height of the fixed chuck, and the two movable chucks alternately transport pipes to the fixed chuck.

2. A pipe cutting machine according to claim 1, characterized in that: The front side of the fuselage is provided with an avoidance mechanism, the fixed chuck is provided on the avoidance mechanism, and the avoidance mechanism is used to adjust the lateral position of the fixed chuck.

3. A pipe cutting machine according to claim 2, characterized in that: A supporting mechanism is provided on the front side of the fuselage. The supporting mechanism includes a supporting clamp. The supporting clamp is used to clamp the pipe to the height of the fixed chuck.

4. A pipe cutting machine according to claim 3, characterized in that: A receiving cavity is provided on the front side of the fuselage. The supporting mechanism further comprises a supporting driving member, which is provided in the receiving cavity and is used for driving the supporting fixture to move in and out of the receiving cavity in the longitudinal direction.

5. The pipe cutting machine according to claim 3, characterized in that: The supporting fixture includes a dual-output cylinder, which includes a cylinder body, a first piston rod arranged at the upper end of the cylinder body, and a second piston rod arranged at the lower end of the cylinder body. The first piston rod is provided with a first clamping seat, and the second piston rod is provided with a second clamping seat. The first clamping seat and the second clamping seat clamp the pipe from a vertical direction.

6. The pipe cutting machine according to claim 4, characterized in that: A feeding mechanism is provided on the front side of the fuselage, and the feeding mechanism includes a fixed material rack, a movable material rack and a feeding drive. The feeding drive is used to drive the movable material rack to move longitudinally on the fixed material rack. The movable material rack is higher than the second transverse movement mechanism. The top surface of the movable material rack is provided with a slope. A plurality of pipes are placed on the surface of the slope. The bottom end of the slope is close to the fuselage. The top and bottom ends of the slope are provided with limiting structures. The limiting structures are used to prevent the pipes from falling. The bottom end of the slope is lower than the fixed chuck.

7. A method for using a pipe cutting machine, characterized in that: A pipe cutting machine according to any one of claims 1 to 6, comprising the following steps when cutting a pipe: (1) The movable chuck on the first lifting mechanism descends to the height of the fixed chuck, the movable chuck on the first lifting mechanism clamps the first tube, the first transverse movement mechanism drives the movable chuck on the first lifting mechanism to transport the first tube to the fixed chuck, and the laser cutting mechanism cuts the first tube; (2) When the first pipe is about to be cut, the movable chuck on the second lifting mechanism rises to the height of the fixed chuck, and the movable chuck on the second lifting mechanism clamps the second pipe and waits for transportation; (3) When the first tube is cut, the movable chuck on the first lifting mechanism rises to the initial height, and the first transverse movement mechanism drives the first lifting mechanism to move in the opposite direction and reset. At the same time, the second transverse movement mechanism drives the movable chuck on the second lifting mechanism to transport the second tube to the fixed chuck, and the laser cutting mechanism cuts the second tube; (4) When the second pipe is about to be cut, the movable chuck on the first lifting mechanism descends to the height of the fixed chuck, and the movable chuck on the first lifting mechanism clamps the third pipe and waits for transportation; (5) When the second tube is cut, the movable chuck on the second lifting mechanism drops to the initial height, and the second transverse movement mechanism drives the second lifting mechanism to move in the opposite direction and reset. At the same time, the first transverse movement mechanism drives the movable chuck on the first lifting mechanism to transport the third tube to the fixed chuck, and the laser cutting mechanism cuts the third tube; (6) Repeat steps (2) to (5), with the movable chuck on the first lifting mechanism and the movable chuck on the second lifting mechanism alternately conveying the pipe to the fixed chuck until the target number of pipes is cut.

8. A method for using a pipe cutting machine, characterized in that: Based on a pipe cutting machine tool as described in any one of claims 2 to 6, when the fixed chuck prevents the laser cutting mechanism from cutting the tail of the pipe, the movable chuck maintains the state of clamping the pipe, the fixed chuck releases the clamping state of the pipe, the avoidance mechanism drives the fixed chuck to move laterally away from the pipe, the laser cutting mechanism cuts the tail of the pipe clamped on the movable chuck, and after the cutting is completed, the movable chuck releases the pipe.

9. A method for using a pipe cutting machine, characterized in that: Based on the pipe cutting machine described in any one of claims 3 to 6, when the movable chuck clamps the pipe, the supporting clamp clamps the pipe to the height of the fixed chuck, and the first transverse movement mechanism or the second transverse movement mechanism drives the movable chuck to move transversely close to the pipe until the movable chuck clamps the pipe.

10. A method for using a pipe cutting machine, characterized in that: Based on the pipe cutting machine tool described in claim 6, when conveying pipes to the supporting mechanism, the feeding drive drives the movable material rack to approach the machine body in the longitudinal direction, the supporting clamp clamps the pipe at the lowest position on the slope, the supporting clamp clamps the pipe to the height of the fixed chuck, and the feeding drive drives the movable material rack to move longitudinally in the reverse direction to reset.

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