An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine

Abstract

The present invention discloses an auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine, which includes a base, a positioning and clamping frame, a second servo motor, a first conveyor belt, an electric lifting partition board and a second conveyor belt. The positioning and clamping frames are symmetrically inserted into the top of the base. A pulling mechanism is installed on the front surface of the top of the base, and the internal part of the pulling mechanism includes a third screw rod, and the third screw rod is inserted above the front surface of the top of the base through a bracket. By rotating the first screw rod, the moving sleeve plate can be driven to move relatively. At the same time, with the transmission of the first screw rod and the meshing of the third bevel gear and the fourth bevel gear, the adjusting screw sleeve drives the second screw rod to move when rotating, which is beneficial to making the clamping rollers and the clamping rods move towards the center position of the housing at the same time. The operation is convenient and simple, so that the device clamps and fixes the metal pipe, which is beneficial to preventing the metal pipe from offsetting during the cutting process.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding equipment for pipe cutting machines, and specifically relates to an auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine. Background Art

[0002] A pipe cutting machine is a metal processing equipment applied to the cutting of metal pipes. Through a series of steps such as conveying, clamping, and cutting, the metal pipes are processed into appropriate lengths. When the existing pipe cutting machines are working, their clamping and positioning of metal pipes are mostly carried out by a manipulator cooperating with a fixture. During the positioning process, the manipulator needs to reciprocate to drive the fixture to move, and the operation process is too cumbersome. Moreover, it is inconvenient for the metal pipe to enter the fixture on the manipulator, resulting in an unsmooth work process and being not conducive to continuous clamping and positioning.

[0003] In addition, when the existing pipe cutting machines are working, to ensure the positioning accuracy during the cutting of metal pipes, the feeding and conveying and positioning of metal pipes are mostly carried out separately. Due to the increase in steps, the time loss of the pipe cutting machine during the feeding and positioning process is excessive, resulting in a reduction in the working efficiency of the pipe cutting machine. Therefore, to solve the above problems, an auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide an auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine, so as to solve the problems in the above background art that when the existing pipe cutting machines are working, they use a manipulator cooperating with a fixture to clamp and position metal pipes, resulting in an overly cumbersome positioning process, and due to the separate feeding and positioning clamping of metal pipes, the working efficiency is reduced.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine, including a base, a positioning and clamping frame, a second servo motor, a first conveyor belt, an electric lifting partition board, and a second conveyor belt. The positioning and clamping frames are symmetrically inserted into the top of the base. A pulling mechanism is installed on the front of the top of the base, and the internal part of the pulling mechanism includes a third screw rod, and the third screw rod is inserted above the front of the top of the base through a bracket. Pulling blocks are symmetrically sleeved on the left and right sides of the third screw rod. One end of the third screw rod is fixedly installed with a second servo motor. A conveying mechanism is installed at the middle position of the top of the base, and the conveying mechanism is installed between the two groups of positioning and clamping frames. The internal part of the conveying mechanism includes a first conveyor belt, and the first conveyor belt is fixedly installed at the middle position of the front of the top of the base. An electric lifting partition board is installed on the back of the first conveyor belt, and a second conveyor belt is installed on the back of the electric lifting partition board.

[0006] Preferably, a chute is formed in the top of the base, and the lower part of the positioning and clamping frame is embedded in the chute formed in the top of the base. The internal dimensions of the chute are adapted to the outer dimensions of the bottom of the positioning and clamping frame, and the positioning and clamping frame is slidably connected to the base through the chute.

[0007] Preferably, two pulling blocks are respectively fixed on the front outer walls of the two positioning and clamping frames. A threaded hole is formed in the middle of the pulling block. The left and right ends of the third screw rod are respectively inserted into the threaded holes formed in the middle of the two pulling blocks. The threaded directions of the outer walls on the left and right sides of the third screw rod are opposite, and the threads assembled on the outside of the third screw rod are adapted to the threaded holes formed in the pulling blocks. The two pulling blocks are respectively threadedly rotatably connected to the third screw rod through the engagement of the threads.

[0008] Preferably, the positioning and clamping frame includes a housing, a clamping opening, a first screw rod, a first belt pulley transmission mechanism, a first servo motor, a moving sleeve plate, a support frame, a rotating shaft, a clamping roller, an L-shaped frame, a first bevel gear, a second bevel gear, a sliding sleeve, a transmission rod, a driving motor, a second screw rod, a clamping rod, a roller, a limiting sleeve, a limiting rod, a first support plate, a third bevel gear, a second belt pulley transmission mechanism, a second support plate, a fourth bevel gear and an adjusting sleeve. A clamping opening is formed in the middle of the housing. The first screw rods are symmetrically inserted into the front and rear sides of the housing. The two groups of first screw rods are connected by a first belt pulley transmission mechanism. One end of one of the first screw rods is fixedly connected to a first servo motor. The moving sleeve plates are symmetrically sleeved on the upper and lower sides of each first screw rod. And a support frame is fixedly welded on the outer side of each moving sleeve plate. A rotating shaft is inserted between the front and rear groups of corresponding support frames. And a clamping roller is fixedly installed on the outer side of each rotating shaft. L-shaped frames are symmetrically fixed on the outer sides of the front two groups of moving sleeve plates. And a first bevel gear is hinged on the vertical side of each L-shaped frame. A second bevel gear is hinged on the horizontal side of each L-shaped frame. A sliding sleeve is fixedly embedded in the middle of each second bevel gear. A transmission rod is vertically inserted into the front side of the inner part of the housing. And one end of the transmission rod is fixedly connected to a driving motor. The second screw rods are symmetrically inserted into the front and rear inner walls of the housing. And a clamping rod is welded and fixed at one end of each second screw rod inserted into the inner part of the housing. A roller is evenly sleeved on the outer side of each clamping rod. Two limiting sleeves are symmetrically fixedly embedded on the front and rear outer walls of the housing. And a limiting rod is inserted into each limiting sleeve. The first support plates are symmetrically fixedly installed on the front and rear sides of the inner part of the housing. And a third bevel gear is inserted on the outer side of each first support plate. A second belt pulley transmission mechanism is fixedly connected between each third bevel gear and the corresponding first screw rod. The second support plates are fixedly installed at the middle positions of the front and rear inner walls of the housing. And a fourth bevel gear is hinged on the outer side of each second support plate. An adjusting sleeve is fixedly embedded in the middle of each fourth bevel gear.

[0009] Preferably, the thread directions of the outer walls of the upper and lower ends of the first screw rod are opposite. Threads are evenly assembled on the inner wall of the moving sleeve plate. And the threads assembled on the inner wall of the moving sleeve plate are respectively adapted to the threads assembled on the outer sides of the upper and lower ends of the first screw rod. The moving sleeve plate is rotationally connected to the first screw rod by the engagement of the threads.

[0010] Preferably, the teeth assembled on the outer side of the first bevel gear are adapted to the teeth assembled on the outer side of the second bevel gear. The first bevel gear hinged on each L-shaped frame is in meshing transmission connection with the corresponding second bevel gear through the engagement of the teeth. The two rotating shafts are respectively fixedly arranged at the axial center positions of the two first bevel gears.

[0011] Preferably, the transmission rod has a regular hexagonal shape, the inner wall of the sliding sleeve has a regular hexagonal shape, the inner size of the sliding sleeve matches the outer size of the transmission rod, and the sliding sleeve is connected to the transmission rod in an up-and-down sliding manner.

[0012] Preferably, through holes are symmetrically opened on the front and rear outer walls of the shell, and two groups of the second screws are respectively inserted into the through holes opened on the outer wall of the shell, and the second screws are slidably connected to the shell front and back through the through holes, and the other end of the limiting rod is fixedly welded to the clamping rod, and the limiting rod is slidably connected to the limiting sleeve.

[0013] Preferably, the third bevel gear is rotatably connected to the first support plate, the third bevel gear is transmissionly connected to the first screw through a second pulley transmission mechanism, the fourth bevel gear is rotatably connected to the second support plate, the teeth assembled on the outer side of the third bevel gear are matched with the teeth assembled on the outer side of the fourth bevel gear, the third bevel gear is meshingly transmission connected with the fourth bevel gear through the meshing of the teeth, the two groups of the second screws are respectively inserted into the two groups of adjusting screw sleeves, the threads assembled on the inner wall of the adjusting screw sleeve are matched with the threads assembled on the outer side of the second screw, and the adjusting screw sleeve is rotationally connected with the second screw thread through the meshing of the threads.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The movable sleeve is rotatably connected to the first screw rod, and the outer threads of the upper and lower ends of the movable sleeve are in opposite directions, so that when the device is in use, the movable sleeve can be driven to move relatively by the rotation of the first screw rod. At the same time, the adjustment screw sleeve drives the second screw rod to move when it rotates, which is conducive to moving the clamping roller and the clamping rod to the center position of the shell at the same time. The operation is convenient and simple, so that the device can clamp and fix the metal pipe, which is conducive to preventing the metal pipe from deviating during the cutting process;

[0016] 2. The conveying mechanism is installed at the top middle position of the base. With the help of the conveying movement of the conveying mechanism and the blocking of the electric lifting partition inside the conveying mechanism, the metal pipe can be blocked when it moves onto the device. At the same time, the rotation of the third screw drives the pulling block to move relatively, so that the two sets of positioning clamping frames move relatively, which is conducive to the continuous feeding, conveying and clamping positioning of the metal pipe by the device, which is conducive to reducing the time loss in the work process and effectively improving the working efficiency of the pipe cutting machine;

[0017] 3. By setting the first bevel gear and the second bevel gear to be meshed and connected by teeth, when the device is in use, the two sets of clamping rollers can rotate in the same direction simultaneously, effectively enabling the device to convey the metal pipe out by the rotation of the clamping rollers after cutting the metal pipe, effectively ensuring the continuity of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 is a front view structural schematic diagram of the present invention;

[0020] Figure 2 is a side view sectional structural schematic diagram of the positioning and clamping frame of the present invention;

[0021] Figure 3 is a side view upward sectional structural schematic diagram of the positioning and clamping frame of the present invention;

[0022] Figure 4 is of the present invention Figure 2 is an enlarged structural schematic diagram of part A in the present invention;

[0023] Figure 5 is of the present invention Figure 2 is an enlarged structural schematic diagram of part B in the present invention;

[0024] Figure 6 is a top view structural schematic diagram of the conveying mechanism of the present invention;

[0025] Figure 7 is a side view sectional structural schematic diagram of the L-shaped frame of the present invention;

[0026] Figure 8 is a two-side top view sectional structural schematic diagram of the sliding sleeve and the transmission rod of the present invention.

[0027] In the figure: 1. Base; 2. Positioning and clamping frame; 21. Outer shell; 22. Clamping opening; 23. First screw rod; 24. First pulley drive mechanism; 25. First servo motor; 26. Moving sleeve plate; 27. Support frame; 28. Rotating shaft; 29. Clamping roller; 210. L-shaped frame; 211. First bevel gear; 212. Second bevel gear; 213. Sliding sleeve; 214. Transmission rod; 215. Driving motor; 216. Second screw rod; 217. Clamping rod; 218. Roller; 219. Limiting sleeve; 220. Limiting rod; 221. First support plate; 222. Third bevel gear; 223. Second pulley drive mechanism; 224. Second support plate; 225. Fourth bevel gear; 226. Adjusting sleeve; 3. Pulling mechanism; 31. Third screw rod; 32. Pulling block; 33. Second servo motor; 4. Conveying mechanism; 41. First conveyor belt; 42. Electrically liftable partition board; 43. Second conveyor belt. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-8 , an embodiment provided by the present invention: An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine, including a base 1, a positioning and clamping frame 2, a second servo motor 33, a first conveyor belt 41, an electrically liftable partition board 42, and a second conveyor belt 43. The positioning and clamping frames 2 are symmetrically inserted into the top of the base 1. A chute is opened at the top of the base 1. The lower part of the positioning and clamping frame 2 is embedded in the chute opened at the top of the base 1, and the internal dimensions of the chute are adapted to the outer dimensions of the bottom of the positioning and clamping frame 2. The positioning and clamping frame 2 is slidably connected to the base 1 through the chute. By setting the dimensions of the bottom of the positioning and clamping frame 2 to be adapted to the chute opened at the top of the base 1, when the device is in use, the positioning and clamping frame 2 can slide stably on the top of the base 1, which is beneficial to ensuring the structural stability of the device during use.

[0030] The positioning clamping frame 2 includes a shell 21, a clamping opening 22, a first screw rod 23, a first pulley transmission mechanism 24, a first servo motor 25, a movable sleeve plate 26, a support frame 27, a rotating shaft 28, a clamping roller 29, an L-shaped frame 210, a first bevel gear 211, a second bevel gear 212, a sliding sleeve 213, a transmission rod 214, a driving motor 215, a second screw rod 216, a clamping rod 217, a roller 218, a limiting sleeve 219, a limiting rod 220, a first support plate 221, a third bevel gear 222, a second pulley transmission mechanism 223, a second support plate 224, a fourth bevel gear 225 and an adjusting screw sleeve 226. The middle position of the shell 21 is provided with a clamping opening 22, and the front and rear ends of the shell 21 are provided with a plurality of A first screw 23 is symmetrically inserted inside the side, and the two groups of first screws 23 are connected by a first pulley transmission mechanism 24, one end of one group of first screws 23 is fixedly connected to a first servo motor 25, and a movable sleeve 26 is symmetrically sleeved on the upper and lower sides of each group of first screws 23, and a support frame 27 is fixedly welded on the outer side of each group of movable sleeve 26, and a rotating shaft 28 is inserted between the front and rear two groups of correspondingly arranged support frames 27, and a clamping roller 29 is fixedly installed on the outer side of each group of rotating shafts 28, the threads assembled on the outer walls of the upper and lower ends of the first screw 23 are in opposite directions, and the inner wall of the movable sleeve 26 is evenly equipped with threads, and the threads assembled on the inner wall of the movable sleeve 26 are respectively aligned with the threads assembled on the outer sides of the upper and lower ends of the first screw 23. The movable sleeve 26 is adapted to be respectively connected with the first screw rod 23 by thread meshing, and the threads assembled on the outer sides of the upper and lower ends of the first screw rod 23 are in opposite directions, and the movable sleeve 26 sleeved on the outer sides of the upper and lower ends of each group of the first screw rod 23 are respectively thread meshingly connected with the first screw rod 23, so that when the device is in use, the first screw rod 23 is rotated, and the thread meshing action can make the upper and lower groups of corresponding movable sleeves 26 move in the same direction at the same time, thereby effectively driving the upper and lower corresponding support frames 27 to move in opposite directions at the same time through the movement of the movable sleeve 26, so that the clamping rollers 29 fixed on the outer sides of the upper and lower groups of corresponding support frames 27 move in opposite directions at the same time and move to the middle position of the shell 21, so as to facilitate alignment. The metal pipe inserted inside the device is clamped and fixed, which is beneficial to prevent the metal pipe from deviating during cutting. At the same time, two groups of first screws 23 are respectively installed on the front and rear sides of the outer shell 21, and the two groups of first screws 23 are connected by the first pulley transmission mechanism 24. When the device is in use, the clamping roller 29 is more stable when moving up and down, which is beneficial to make the structure of the device more stable when in use. By controlling the rotation direction of the first servo motor 25, the direction in which the two groups of clamping rollers 29 move at the same time can be effectively controlled, which is convenient for the device to work continuously and continuously, which is beneficial to reduce the cumbersomeness of the clamping and positioning process, reduce the time lost in clamping and positioning, and improve production efficiency.

[0031] On the outer sides of the two groups of moving sliding plates 26 on the front side, L-shaped frames 210 are symmetrically fixed. On the vertical side of each group of L-shaped frames 210, a first bevel gear 211 is hinged. On the horizontal side of each group of L-shaped frames 210, a second bevel gear 212 is hinged. The teeth assembled on the outer side of the first bevel gear 211 are adapted to the teeth assembled on the outer side of the second bevel gear 212. The first bevel gear 211 and the corresponding second bevel gear 212 hinged on each group of L-shaped frames 210 are connected by meshing transmission of the teeth. The two rotating shafts 28 are respectively fixed at the axial center positions of the two groups of first bevel gears 211. Through the meshing rotation of the second bevel gear 212 and the first bevel gear 211, when the device performs the operation of guiding out the metal pipe clamped at the middle position of the positioning clamping frame 2, through the meshing transmission of the teeth, the two groups of first bevel gears 211 can effectively drive the corresponding rotating shafts 28 to rotate, so that the two clamping rollers 29 move towards each other at the same time. Under the rotational extrusion of the clamping rollers 29, the cut metal pipe clamped on the device is quickly moved out, which is conducive to the smooth and continuous feeding, clamping and discharging of the device, and is conducive to improving the working efficiency during the working process of the device.

[0032] A sliding sleeve 213 is fixedly embedded in the middle position of each group of second bevel gears 212. A transmission rod 214 is vertically inserted into the front side of the inner part of the housing 21, and one end of the transmission rod 214 is fixedly connected with a driving motor 215. The outer shape of the transmission rod 214 is a regular hexagon, the inner wall shape of the sliding sleeve 213 is a regular hexagon, the internal dimension of the sliding sleeve 213 is adapted to the outer dimension of the transmission rod 214, and the sliding sleeve 213 is slidably connected with the transmission rod 214 up and down. By setting the sliding sleeve 213 fixedly embedded in the middle position of the second bevel gear 212 and setting the hexagon inside the sliding sleeve 213 adapted to the transmission rod 214, only relative up and down sliding can be carried out between the sliding sleeve 213 and the transmission rod 214, which is conducive to restricting the rotation between the sliding sleeve 213 and the transmission rod 214, and is convenient for ensuring the working stability when the transmission rod 214 rotates and outputs to the sliding sleeve 213. Setting that the sliding sleeve 213 can only slide relatively up and down on the transmission rod 214 is conducive to preventing the rotation output of the transmission rod 214 in the direction of the clamping roller 29 from being interrupted when the clamping roller 29 moves and adjusts, and is conducive to ensuring the rationality of the device during operation. By setting that the driving motor 215 drives the transmission rod 214 fixed on its rotation output shaft to rotate after being powered on and started, under the rotation output action of the transmission rod 214, the sliding sleeve 213 is driven to rotate, and power is output to the second bevel gear 212, which is conducive to the two clamping rollers 29 rotating towards each other at the same time, is convenient for saving the usage amount of the driving motor 215, is conducive to reducing the manufacturing cost of the device, and is convenient for making the rotation drive of the clamping roller 29 more stable.

[0033] On the inner walls of the front and rear sides of the outer shell 21, second screw rods 216 are symmetrically inserted. And at one end of each group of second screw rods 216 inserted inside the outer shell 21, a clamping rod 217 is fixedly welded. On the outer side of each group of clamping rods 217, rollers 218 are evenly sleeved. On the outer walls of the front and rear sides of the outer shell 21, two groups of limiting sleeves 219 are symmetrically and fixedly inlaid. And in the interior of each group of limiting sleeves 219, a limiting rod 220 is inserted. Through holes are symmetrically opened on the outer walls of the front and rear sides of the outer shell 21. The two groups of second screw rods 216 are respectively inserted into the through holes opened on the outer wall of the outer shell 21. The second screw rods 216 are slidably connected to the outer shell 21 through the through holes in the front and rear directions. The other end of the limiting rod 220 is fixedly welded to the clamping rod 217. The limiting rod 220 is slidably connected to the limiting sleeve 219. By arranging the second screw rods 216 to be inserted into the through holes opened on the front and rear sides of the outer shell 21, the second screw rods 216 can slide back and forth relative to the outer shell 21. At the same time, by arranging the limiting rods 220 to be inserted into the middle positions of the limiting sleeves 219, and one end of the limiting sleeve 219 is fixedly installed on the clamping rod 217 to support and limit the second screw rods 216, it is beneficial to enable the second screw rods 216 to only slide back and forth relative to the outer shell 21, preventing the second screw rods 216 from rotating inside the outer shell 21, which is beneficial to ensuring the stability of the device during operation. At the same time, by the movement of the second screw rods 216, the clamping rods 217 are driven to move inside the outer shell 21. By the two groups of second screw rods 216 respectively driving the two groups of clamping rods 217 to move back and forth relatively inside the outer shell 21, through the clamping of the movement of the clamping rods 217, cooperating with the clamping of the movement of the clamping rollers 29, it is beneficial to position the metal pipe clamped on the device at the middle position of the clamping opening 22, facilitating the accurate positioning and clamping of the metal pipe, which is beneficial to preventing the metal pipe from shifting during the cutting process, and facilitating ensuring the stability and accuracy of the cutting process of the pipe cutting machine. By arranging the rollers 218 to be evenly sleeved on the outer sides of the clamping rods 217, and the rollers 218 are rotatably connected to the clamping rods 217, when the metal pipe is accurately positioned and clamped on the device, it can be easily removed from the device after being cut, which is beneficial to ensuring the stability of the device during operation and facilitating improving the production efficiency of the device.

[0034] On the front and rear sides inside the housing 21, first support plates 221 are symmetrically and fixedly installed. A third bevel gear 222 is inserted on the outer side of each group of first support plates 221. A second pulley transmission mechanism 223 is fixedly connected between each group of third bevel gears 222 and the corresponding first screw 23. In the middle position of the front and rear inner walls of the housing 21, second support plates 224 are fixedly installed. A fourth bevel gear 225 is hinged on the outer side of each group of second support plates 224. An adjusting screw sleeve 226 is fixedly embedded in the middle position of each group of fourth bevel gears 225. The third bevel gear 222 is rotatably connected to the first support plate 221. The third bevel gear 222 is in transmission connection with the first screw 23 through the second pulley transmission mechanism 223. The fourth bevel gear 225 is rotatably connected to the second support plate 224. The teeth assembled on the outer side of the third bevel gear 222 are adapted to the teeth assembled on the outer side of the fourth bevel gear 225. The third bevel gear 222 is in meshing transmission connection with the fourth bevel gear 225 through the meshing of the teeth. Two second screws 216 are respectively inserted into the two adjusting screw sleeves 226. The thread assembled on the inner wall of the adjusting screw sleeve 226 is adapted to the thread assembled on the outer side of the second screw 216. The adjusting screw sleeve 226 is in threaded rotation connection with the second screw 216 through the meshing of the threads. By arranging the second pulley transmission mechanism 223 to be connected between the third bevel gear 222 and the first screw 23, when the first screw 23 rotates, it can effectively drive the third bevel gear 222 to rotate. Through the meshing transmission between the third bevel gear 222 and the fourth bevel gear 225, the fourth bevel gear 225 drives the adjusting screw sleeve 226 to rotate. Through the threaded meshing connection between the adjusting screw sleeve 226 and the second screw 216, when the adjusting screw sleeve 226 rotates, it drives the second screw 216 to move in the front and rear directions. Thus, it is beneficial to drive the clamping rod 217 to move through the movement drive of the second screw 216, which is beneficial to interlink the movement of the clamping rod 217 with the movement of the clamping roller 29, so that the clamping rod 217 and the clamping roller 29 move simultaneously towards the middle position of the clamping opening 22, which is beneficial to stably and effectively clamp and fix the metal pipe and facilitate preventing the metal pipe from shifting.

[0035] At the front of the top of the base 1, a pulling mechanism 3 is installed. The inside of the pulling mechanism 3 includes a third screw 31, and the third screw 31 is inserted above the top of the base 1 through a bracket at the front. On the left and right sides of the third screw 31, pulling blocks 32 are symmetrically sleeved. One end of the third screw 31 is fixedly installed with a second servo motor 33. The two pulling blocks 32 are respectively fixed on the front outer walls of the two positioning and clamping frames 2. In the middle position inside the pulling block 32, a threaded hole is opened. The left and right ends of the third screw 31 are respectively inserted into the threaded holes opened in the middle of the two pulling blocks 32. The thread directions assembled on the outer walls on the left and right sides of the third screw 31 are opposite. The thread assembled on the outside of the third screw 31 is adapted to the threaded hole opened inside the pulling block 32. The two pulling blocks 32 are respectively rotationally connected to the third screw 31 through the engagement of the threads. By setting the two pulling blocks 32 to be respectively engaged and rotated with the left and right ends of the third screw 31, and cooperating with the opposite thread directions assembled on the outer sides of the left and right ends of the third screw 31, when the device is in use, the second servo motor 33 is started to drive the third screw 31 to rotate. Under the action of the engagement of the threads, the two pulling blocks 32 can drive the positioning and clamping frames 2 to move towards each other at the same time, so that the two positioning and clamping frames 2 move towards the middle position of the base 1 at the same time, which is convenient for the two ends of the metal pipe to enter the middle of the clamping opening 22 through the movement of the positioning and clamping frames 2, which is beneficial to the device to clamp and position the metal pipe.

[0036] At the middle position of the top of the base 1, a conveying mechanism 4 is installed, and the conveying mechanism 4 is installed between the two positioning and clamping frames 2. The inside of the conveying mechanism 4 includes a first conveyor belt 41, and the first conveyor belt 41 is fixedly installed at the middle position of the front of the top of the base 1. An electric lifting partition 42 is installed on the back of the first conveyor belt 41, and a second conveyor belt 43 is installed on the back of the electric lifting partition 42. By setting the first conveyor belt 41 to convey the metal pipe, at the same time, setting the electric lifting partition 42 to be powered on and lifted to isolate the metal pipe is beneficial to separate the cut metal pipe from the uncut metal pipe, which is beneficial to ensure the working stability of the device and is convenient for continuous and coherent work.

[0037] Working principle: When working, when the device is started, the first conveyor belt 41 inside the conveying mechanism 4 continuously conveys the metal pipe towards the middle position of the device. Under the blocking action of the electric lifting partition 42, the metal pipe is located at the middle position of the top of the base 1;

[0038] Subsequently, the second servo motor 33 inside the pulling mechanism 3 is powered on and starts, driving the third screw rod 31 to rotate. Through the meshing of the threads, the two pulling blocks 32 move simultaneously towards the middle position of the third screw rod 31, thereby causing the two positioning clamping brackets 2 to move simultaneously towards the middle position of the base 1, enabling the metal steel pipe on the first conveyor belt 41 to enter the clamping opening 22 opened in the middle position of the positioning clamping bracket 2;

[0039] Meanwhile, the first servo motor 25 inside the positioning clamping bracket 2 is powered on and starts, driving the first screw rod 23 on its rotating output shaft to rotate. Driven by the first pulley transmission mechanism 24, the two first screw rods 23 rotate simultaneously. When the first screw rod 23 rotates, through the thread meshing between the first screw rod 23 and the moving sleeve plate 26, the moving sleeve plates 26 symmetrically sleeved at the upper and lower ends of each first screw rod 23 move relatively simultaneously, effectively causing the rotating shaft 28 inserted on the support frame 27 to drive the clamping roller 29 to move, making the two clamping rollers 29 move simultaneously towards the center position of the housing 21;

[0040] Meanwhile, when the first screw rod 23 rotates, through the transmission of the second pulley transmission mechanism 223, the first screw rod 23 drives the third bevel gear 222 to rotate. Through the meshing of the third bevel gear 222 and the fourth bevel gear 225, the fourth bevel gear 225 rotates to drive the adjusting sleeve 226 embedded in its middle position to rotate. Through the threaded meshing connection between the adjusting sleeve 226 and the second screw rod 216, the second screw rod 216 moves inside the adjusting sleeve 226, causing the clamping rod 217 to drive the roller 218 to move towards the middle position of the housing 21. Through the simultaneous movement of the clamping roller 29 and the roller 218 towards the middle position of the housing 21, the metal pipe entering the device is moved and pushed to the middle position of the clamping opening 22, positioning and clamping the metal pipe;

[0041] During operation, when the clamped and fixed metal pipe is cut, the cut part in the middle of the metal pipe drops onto the first conveyor belt 41. Subsequently, the electric lifting partition 42 is powered on and descends. Through the transmission of the first conveyor belt 41 and the electric lifting partition 42, the cut metal pipe is conveyed out. When the cut metal pipe is conveyed away from the first conveyor belt 41, the electric lifting partition 42 is powered on and rises to reset;

[0042] During operation, when the cutting is completed, the left and right ends of the metal pipe are respectively clamped inside two groups of positioning and clamping brackets 2. At this time, the driving motor 215 is powered on and starts. The rotation of the driving motor 215 drives the transmission rod 214 to rotate, so that the second bevel gear 212 sleeved on the transmission rod 214 rotates. Under the meshing transmission of the teeth of the second bevel gear 212 and the first bevel gear 211, the two groups of first bevel gears 211 respectively drive the corresponding rotating shafts 28 to rotate, so that the two clamping rollers 29 rotate towards each other at the same time. Through the rotation of the clamping rollers 29, the metal pipe clamped between the two clamping rollers 29 is conveyed away from the clamping of the positioning and clamping brackets 2. Repeat the above operation to perform continuous and coherent feeding and positioning operations. The above is the entire working principle of the present invention.

[0043] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine, comprising a base (1), a positioning and clamping frame (2), a second servo motor (33), a first conveyor belt (41), an electric lifting partition plate (42) and a second conveyor belt (43), characterized in that: The top of the base (1) is symmetrically inserted with positioning clamping frames (2). The front of the top of the base (1) is equipped with a pulling mechanism (3), and the inside of the pulling mechanism (3) includes a third screw rod (31). The third screw rod (31) is inserted above the front of the top of the base (1) through a bracket. Symmetrically sleeved on the left and right sides of the third screw rod (31) are pulling blocks (32). One end of the third screw rod (31) is fixedly installed with a second servo motor (33). In the middle position of the top of the base (1) is installed a conveying mechanism (4), and the conveying mechanism (4) is installed between the two positioning clamping frames (2). The inside of the conveying mechanism (4) includes a first conveyor belt (41), and the first conveyor belt (41) is fixedly installed in the middle position of the front of the top of the base (1). The back of the first conveyor belt (41) is installed with an electric lifting partition board (42), and the back of the electric lifting partition board (42) is installed with a second conveyor belt (43). The two pulling blocks (32) are respectively fixed on the front outer walls of the two positioning clamping frames (2). In the middle position inside the pulling block (32) is opened a threaded hole. The left and right ends of the third screw rod (31) are respectively inserted into the threaded holes opened in the middle of the two pulling blocks (32). The threaded directions assembled on the outer walls of the left and right sides of the third screw rod (31) are opposite. The threads assembled on the outside of the third screw rod (31) are adapted to the threaded holes opened inside the pulling block (32). The two pulling blocks (32) are respectively rotationally connected to the third screw rod (31) through the engagement of the threads. The positioning and clamping frame (2) includes a housing (21), a clamping opening (22), a first screw rod (23), a first belt pulley transmission mechanism (24), a first servo motor (25), a movable sleeve plate (26), a support frame (27), a rotating shaft (28), a clamping roller (29), an L-shaped frame (210), a first bevel gear (211), a second bevel gear (212), a sliding sleeve (213), a transmission rod (214), a driving motor (215), a second screw rod (216), a clamping rod (217), a roller (218), a limiting sleeve (219), a limiting rod (220), a first support plate (221), a third bevel gear (222), a second belt pulley transmission mechanism (223), a second support plate (224), a fourth bevel gear (225), and an adjusting sleeve (226). A clamping opening (22) is provided at the middle position of the housing (21). The first screw rods (23) are symmetrically inserted into the front and rear sides of the housing (21). The two groups of the first screw rods (23) are connected by a first belt pulley transmission mechanism (24). One end of one group of the first screw rods (23) is fixedly connected to a first servo motor (25). Movable sleeve plates (26) are symmetrically sleeved on the upper and lower sides of each group of the first screw rods (23). And a support frame (27) is fixedly welded to the outer side of each group of the movable sleeve plates (26). A rotating shaft (28) is inserted between the front and rear two groups of corresponding support frames (27). And a clamping roller (29) is fixedly installed on the outer side of each group of the rotating shafts (28). L-shaped frames (210) are symmetrically fixed to the outer sides of the front two groups of the movable sleeve plates (26). And a first bevel gear (211) is hinged to the vertical side of each group of the L-shaped frames (210). A second bevel gear (212) is hinged to the horizontal side of each group of the L-shaped frames (210). A sliding sleeve (213) is fixedly embedded in the middle position of each group of the second bevel gears (212). A transmission rod (214) is vertically inserted into the front side of the inner part of the housing (21). And one end of the transmission rod (214) is fixedly connected to a driving motor (215). Second screw rods (216) are symmetrically inserted into the inner walls of the front and rear sides of the housing (21). And a clamping rod (217) is welded and fixed to one end of each group of the second screw rods (216) inserted into the inner part of the housing (21). Rollers (218) are evenly sleeved on the outer sides of each group of the clamping rods (217). Two groups of limiting sleeves (219) are symmetrically fixedly embedded on the outer walls of the front and rear sides of the housing (21). And a limiting rod (220) is inserted into the inner part of each group of the limiting sleeves (219). First support plates (221) are symmetrically fixedly installed on the front and rear sides of the inner part of the housing (21). And a third bevel gear (222) is inserted into the outer side of each group of the first support plates (221). A second belt pulley transmission mechanism (223) is fixedly connected between each group of the third bevel gears (222) and the corresponding first screw rod (23).A second support plate (224) is fixedly installed at the middle position of the inner walls on the front and rear sides of the outer shell (21), and a fourth bevel gear (225) is hinged to the outside of each group of the second support plates (224), and an adjusting screw sleeve (226) is fixedly inlaid at the middle position of each group of the fourth bevel gears (225).

2. The auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine according to claim 1, wherein: A chute is opened on the top of the base (1). The lower part of the positioning clamping frame (2) is embedded in the chute opened on the top of the base (1), and the internal dimension of the chute is adapted to the outer dimension of the bottom of the positioning clamping frame (2). The positioning clamping frame (2) is slidably connected to the base (1) through the chute.

3. An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine according to claim 1, characterized in that: The threaded directions assembled on the outer walls of the upper and lower ends of the first screw rod (23) are opposite. The inner wall of the movable sleeve plate (26) is evenly assembled with threads, and the threads assembled on the inner wall of the movable sleeve plate (26) are respectively adapted to the threads assembled on the outer sides of the upper and lower ends of the first screw rod (23). The movable sleeve plate (26) is rotationally connected to the first screw rod (23) through the engagement of the threads.

4. An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine according to claim 1, characterized in that: The teeth assembled on the outside of the first bevel gear (211) are adapted to the teeth assembled on the outside of the second bevel gear (212). The first bevel gear (211) hinged on each L-shaped frame (210) is in transmission connection with the corresponding second bevel gear (212) through the engagement of the teeth. The two rotating shafts (28) are respectively fixed at the axial center positions of the two first bevel gears (211).

5. An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine according to claim 1, characterized in that: The outer shape of the transmission rod (214) is regular hexagon. The inner wall shape of the sliding sleeve (213) is regular hexagon. The internal dimension of the sliding sleeve (213) is adapted to the outer dimension of the transmission rod (214). The sliding sleeve (213) is slidably connected to the transmission rod (214) up and down.

6. The auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine according to claim 1, characterized in that: Through holes are symmetrically provided on the front and rear outer walls of the housing (21); two sets of the second screw rods (216) are respectively inserted into the through holes provided on the outer wall of the housing (21); the second screw rods (216) are slidably connected to the housing (21) in a front-rear manner through the through holes; the other end of the limiting rod (220) is fixedly welded to the clamping rod (217); and the limiting rod (220) is slidably connected to the limiting sleeve (219).

7. An auxiliary feeding and positioning mechanism with an anti-offset structure for a pipe cutting machine according to claim 1, characterized in that: The third bevel gear (222) is rotationally connected to the first support plate (221), and the third bevel gear (222) is transmission-connected to the first screw rod (23) via a second pulley transmission mechanism (223). The fourth bevel gear (225) is rotationally connected to the second support plate (224). The teeth assembled on the outer side of the third bevel gear (222) are matched with the teeth assembled on the outer side of the fourth bevel gear (225). The third bevel gear (222) is meshingly transmission-connected with the fourth bevel gear (225) via meshing of the teeth. Two groups of the second screw rods (216) are respectively inserted into the inside of the two groups of the adjusting screw sleeves (226). The threads assembled on the inner wall of the adjusting screw sleeves (226) are matched with the threads assembled on the outer side of the second screw rod (216). The adjusting screw sleeves (226) are thread-rotatably connected with the second screw rod (216) via meshing of the threads.

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