An automatic pipe cutting machine

Abstract

The present invention belongs to the technical field of pipe cutting machines, and specifically relates to an automatic pipe cutting machine, which includes a workbench; a cutting groove is formed in the middle of the top surface of the workbench; a sliding plate is slidably connected to the bottom of the cutting groove; the sliding plate is driven by a servo motor; hydraulic rods are fixedly connected to both ends of the top surface of the sliding plate; a connecting rod is installed between the telescopic ends of the two hydraulic rods; a connecting seat is rotatably connected to the surface of the connecting rod, and the connecting seat is driven by a servo motor; a circular saw blade is rotatably connected to the bottom surface of the connecting seat, and the circular saw blade is driven by a servo motor; a fixing component is installed on the top surface of the workbench; the fixing component is used to fix the pipe to be cut. By deflecting the connecting seat, the circular saw blade is driven to deflect together, thereby realizing the inclined cutting of the pipe, making the cutting surface of the pipe inclined, so as to facilitate subsequent welding, thus avoiding the re-cutting of the pipe and the waste of raw materials.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe cutting machines, and more specifically, it is an automatic pipe cutting machine. Background Art

[0002] As a commonly used material, pipes play an important role in various production activities. When steel pipes are used as raw materials, in order to meet various production requirements, the steel pipes need to be cut to divide them into the required lengths.

[0003] Some solutions have also been proposed in the prior art. For example, a patent application with the publication number CN102784959A discloses an automatic pipe cutting machine, which includes a storage and material distribution rack, a material taking mechanism, a feeding track, a material pushing system, a cutting system, and a cut material dropping system. By more smoothly and evenly delivering the material to the automatic material taking position and aligning it with the center of the feeding track and the cutting center, it is suitable for the characteristics of cutting different specifications of rectangular pipes and is mainly used for the automatic cutting of rectangular pipes.

[0004] In general, the pipe cutting machines in the prior art directly cut the pipe fittings through a cutting knife. At this time, the cutting surface of the pipe fittings is a flat straight surface. However, in the production process such as the welding of square pipe frames, it is necessary to cut the end surface of the pipe fittings into an inclined surface. Therefore, it is necessary to perform secondary cutting on the cut pipe fittings, which not only affects the work efficiency but also causes waste of the pipe fittings.

[0005] Therefore, the present invention provides an automatic pipe cutting machine. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: An automatic pipe cutting machine described in the present invention includes a workbench; a cutting groove is provided at the middle position of the top surface of the workbench; a sliding plate is slidably connected to the bottom of the cutting groove; the sliding plate is driven by a servo motor; both ends of the top surface of the sliding plate are fixedly connected with hydraulic rods; a connecting rod is installed between the telescopic ends of the two hydraulic rods; a connecting seat is rotatably connected to the surface of the connecting rod, and the connecting seat is driven by a servo motor; a circular saw blade is rotatably connected to the bottom surface of the connecting seat, and the circular saw blade is driven by a servo motor; a fixing component is installed on the top surface of the workbench; the fixing component is used to fix the pipe to be cut; during operation, when cutting a pipe, the embodiment of the present invention can be used. First, the user needs to place the pipe on the top surface of the workbench and move the position to be cut of the pipe to the chute. Subsequently, the fixing component will fix the pipe. Then, the user controls the connecting seat to rotate on the surface of the connecting rod so that the angle between the circular saw blade and the pipe to be cut meets the user's requirements. Then, the hydraulic rod is started so that the circular saw blade at the bottom of the connecting seat can cut the pipe. After that, the servo motor drives the sliding plate to move along the chute, so that the rotating circular saw blade completes the cutting of the pipe. Subsequently, the fixing component releases the fixation of the pipe, and the user can remove the cut pipe. By deflecting the connecting seat, the circular saw blade is driven to deflect together, thereby realizing the inclined cutting of the pipe, making the cutting surface of the pipe inclined, which is convenient for subsequent welding, thus avoiding the re-cutting of the pipe and the waste of raw materials.

[0008] Preferably, the fixing component includes a pair of hydraulic cylinders I, and the two hydraulic cylinders I are respectively located on both sides of the chute; a pair of support plates are fixedly connected to the top surface of the workbench, and the two support plates correspond to the two hydraulic cylinders I respectively; a push plate is slidably connected to the top surface of the workbench, and the distance between the two is adjusted by a screw; a rubber pad I is fixedly connected to one end of the push plate close to the hydraulic cylinder I and the telescopic end of the hydraulic cylinder I; during operation, when the user needs to fix the pipe to be cut, the hydraulic cylinder I drives the rubber pad I at its telescopic end to press against the rubber pad I on the surface of the push plate, thereby clamping the pipe located between the two rubber pads I. When cutting pipes of different diameters or cutting multiple pipes at the same time, in order to make the pipe in the middle of the chute, the user can adjust the position of the push plate through a bolt, so that the push plate moves towards the support plate, so that the large-diameter pipe or multiple pipes arranged side by side are still in the middle of the chute, thus avoiding the pipe piling up at one end and resulting in insufficient cutting by the circular saw blade. The rubber pad I itself has elasticity and can better fit the surface of the pipe, thereby improving the clamping effect on the pipe.

[0009] Preferably, a pair of connecting frames are slidably connected to the top surface of the workbench, and the connecting frames are driven by a servo motor; the two connecting frames are respectively located on both sides of the first hydraulic cylinder; a limiting plate is slidably connected to one side of the top surface of the connecting frame close to the support plate, and the limiting plate and the connecting frame are adjusted by bolts; a second hydraulic cylinder is fixedly connected to one end of the connecting frame away from the limiting plate; rubber pads II are fixedly connected to the telescopic end of the second hydraulic cylinder and the surface of the limiting plate close to the second hydraulic cylinder; during operation, when the user needs to convey the pipe fittings to be cut, the user needs to first convey the pipe fittings to be cut to the top surface of the workbench through the conveyor belt, and then the connecting frames slide along the top surface of the workbench driven by the servo motor. When the connecting frames slide to both sides of the pipe fittings to be cut, the second hydraulic cylinder is started and the rubber pad II is pushed towards the limiting plate, so as to clamp the pipe fittings to be cut. Subsequently, the servo motor drives the connecting frames and the clamped pipe fittings to move to the chute. After the circular saw finishes cutting the pipe fittings, the connecting frame far from the feeding end will move to both sides of the cut pipe fittings. Subsequently, the second hydraulic cylinder drives the rubber pad II to cooperate with the rubber pad II on the surface of the limiting plate to complete the clamping of the cut pipe fittings. Then the servo motor drives the connecting frames and the clamped pipe fittings to move out of the top surface of the workbench, and the second hydraulic cylinder drives the rubber pad II to move away from the cut pipe fittings, thereby canceling the clamping of the pipe fittings and enabling the pipe fittings to fall off from the top surface of the workbench, thus completing the automatic loading and unloading operation of the pipe fittings, and further avoiding the worker accidentally touching the circular saw blade when manually loading and unloading, resulting in worker injury.

[0010] Preferably, connecting columns are arranged at both ends of the connecting rod; the bottom surfaces of the two connecting columns are fixedly connected to the telescopic ends of the hydraulic rods; clamping grooves are formed on the surfaces of the connecting columns; the clamping grooves are adapted to the connecting rod; both ends of the connecting rod are arranged in the clamping grooves; an electrical signal connection is realized between one end of the connecting rod and the inner wall of the clamping groove through a conductive sheet, and the connecting column is connected to an external microcomputer; during operation, after the circular saw blade inevitably wears after long-term pipe fitting cutting in the embodiment of the present invention, in order to ensure the normal use of the embodiment of the present invention, the user can pull out the connecting rod from the clamping groove on the surface of the connecting column, and then the user can insert another connecting rod with a intact circular saw blade into the clamping groove on the surface of the connecting column to realize the rapid replacement of the circular saw blade, avoiding directly disassembling the circular saw blade at the connecting rod and affecting the production efficiency.

[0011] Preferably, a pair of support seats are provided on one side of the workbench; a rotating rod is rotatably connected between the two support seats; a pair of support discs are fixedly connected to the surface of the rotating rod; a plurality of uniformly arranged mounting grooves are formed on the surfaces of the two support discs, and the mounting grooves are used for placing the connecting rods; fixing grooves are formed on both side walls of the mounting grooves and the clamping grooves; locking components are installed inside the fixing grooves; the locking components are used to limit the positions of the connecting rods; during operation, when replacing the connecting rods, the user can place the replaced connecting rods, connecting seats and circular saw blades in the empty mounting grooves on the surface of the turntable. At the same time, the mounting grooves also store the connecting rods, connecting seats and circular saw blades for replacement. Therefore, the user can rotate the turntable to take out the connecting rods for replacement and install them into the clamping grooves at the connecting columns, thus facilitating the user to store spare parts and place worn parts.

[0012] Preferably, the locking component includes a pair of sliders which are slidably connected to the inner wall of the fixing groove; a spring is fixedly connected between the slider and the inner wall of the fixing groove; a limiting wheel is rotatably connected between the two sliders; during operation, when the connecting rod is inserted into the mounting groove and the clamping groove, the connecting rod will squeeze the limiting wheel in the fixing groove, causing the limiting wheel to rotate and drive the limiting wheel and the slider to move away from the connecting rod, while compressing the spring, so that the connecting rod can be inserted into the clamping groove and the mounting groove. When the connecting rod no longer squeezes the limiting wheel, the spring resets, causing the limiting wheel to close the openings of the mounting groove and the clamping groove, preventing the connecting rod from slipping out of the mounting groove and the clamping groove. When the connecting rod needs to be taken out of the mounting groove and the clamping groove, the user needs to pull the connecting rod to make the connecting rod squeeze the limiting wheel again, so that the limiting wheel is pressed into the fixing groove, thus facilitating the user to take out the connecting rod. Through the limiting function of the limiting wheel, it is convenient for the user to take out or install the connecting rod, thereby reducing the operation difficulty of the user and improving the usability of the embodiment of the present invention.

[0013] Preferably, a bottom plate is fixedly connected to the side of the support seat away from the chute; a pair of support frames are fixedly connected to the top surface of the bottom plate; a pair of electric push rods are fixedly connected to the top surface of the support frames, and the electric push rods are located at the gaps between the paired turntables; a clamping component is installed at the telescopic end of the electric push rod; the clamping group is used to clamp the connecting rod; during operation, when the connecting rod needs to be replaced, the slide plate will drive the hydraulic rod and the connecting rod to move to the two electric push rods. Subsequently, the electric push rods are activated to press the clamping component onto the surface of the connecting rod, thereby completing the clamping of the connecting rod. Then the electric push rod continues to push the connecting rod, pushing the connecting rod out of the clamping groove and pushing the connecting card all the way to the mounting groove at the turntable. Then the user rotates the turntable, and the electric push rod controls the clamping component to clamp the connecting rod to be replaced on the turntable. Subsequently, the electric push rod contracts, pulling the connecting rod back into the clamping groove, thus completing the replacement of the connecting rod, further reducing the operation difficulty of the user.

[0014] Preferably, the clamping assembly includes a clamping seat, and the clamping seat is fixedly connected to the telescopic end of the electric push rod; a support plate is fixedly connected to the bottom surface of the clamping seat; an electromagnet block one is embedded at one end of the clamping seat away from the electric push rod; during operation, when it is necessary to clamp the connecting rod, the electric push rod pushes the jaw seat to move towards the surface of the connecting rod, and the pressure rod on the surface of the jaw seat presses against the surface of the connecting rod. Then, the electromagnet block one is activated, and the electromagnet block one will adsorb both ends of the connecting rod and place the connecting rod on the support plate, thereby fixing the connecting rod. While fixing the connecting rod, it can also avoid directly squeezing the surface of the connecting rod, preventing wear on the contact surface between the end of the connecting rod and the clamping groove, and affecting the transmission of electrical signals.

[0015] Preferably, a fixing frame is fixedly connected between the support seat and the bottom plate; the fixing frame is arranged in an L shape; the top of the fixing frame on the side away from the workbench is slidably connected with a top plate, and the top plate is fixedly connected to the telescopic end of the electric push rod; a driving column is rotatably connected to the surface of the workbench; a driving wheel is installed on the surface of the driving column, and the driving wheel is connected to the driving column through a one-way bearing; a toothed plate is slidably connected to the surface of the workbench above the driving wheel, and the toothed plate is meshed with the driving wheel; the toothed plate is made of magnetizable metal material; an electromagnet block two is fixedly connected to one end of the top plate close to the toothed plate; during operation, when the electric push rod pushes the jaw seat towards the turntable, the top plate will be pushed by the electric push rod and press against the surface of the toothed plate. At this time, the toothed plate will drive the driving wheel to rotate. Since a one-way bearing is installed between the driving wheel and the driving column, when the pressing rod pushes the toothed plate, the toothed plate will drive the gear to rotate on the surface of the driving column. When the clamping seat places the connecting rod into the installation groove, the electromagnet block two at the end of the top plate will be activated and adsorb the toothed plate. At this time, the electric push rod drives the top plate away from the support seat, and the top plate will pull the toothed plate, thereby driving the driving wheel to rotate. At this time, the driving wheel drives the driving column to rotate through the one-way bearing, and the driving column will drive the gear set to rotate, thereby driving the rotating rod and the turntable between the support seats to rotate, so as to rotate the connecting rod to be replaced on the main plate to the position opposite to the clamping seat. Subsequently, the electromagnet block two is powered off, and the electric push rod pushes the jaw seat and the electromagnet block two on its surface again to adsorb the connecting rod and bring it into the clamping groove, thereby completing the automatic replacement of the connecting rod, reducing the replacement difficulty of the connecting rod, and improving the replacement efficiency.

[0016] Preferably, a limiting frame is fixedly connected to the side surfaces of the telescopic ends of the two electric push rods, and the limiting frame is located above the electric push rods; the limiting frame is slidably connected to the fixing frame; during operation, when the telescopic end of the electric push rod moves, the limiting frame will also move on the fixing frame following the telescopic end of the electric push rod and provide an upward pulling force for the telescopic end of the electric push rod, avoiding the gravity of the connecting rod at the end of the electric push rod continuously acting on one end of the electric push rod, resulting in bending of the electric push rod and affecting its service life.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. An automatic pipe cutting machine according to the present invention drives a circular saw blade to deflect together through the deflection of a connecting seat, thereby realizing the inclined cutting of a pipe fitting, making the cutting surface of the pipe fitting inclined, facilitating subsequent welding, and thus avoiding the re-cutting of the pipe fitting and the waste of raw materials.

[0019] 2. An automatic pipe cutting machine according to the present invention drives a connecting frame and a clamped pipe fitting to move out of the top surface of a workbench through a servo motor, and drives a rubber pad II away from the cut pipe fitting by a hydraulic cylinder II, thereby canceling the clamping of the pipe fitting and enabling the pipe fitting to fall off the top surface of the workbench, thus completing the automatic loading and unloading operation of the pipe fitting, and further avoiding the situation that a worker accidentally touches the circular saw blade during manual loading and unloading, resulting in injury to the worker. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a schematic structural view of a connecting rod in the present invention;

[0023] Figure 3 is a schematic structural view of a hydraulic rod in the present invention;

[0024] Figure 4 is a partial cross-sectional view of a connecting column in the present invention;

[0025] Figure 5 is a schematic structural view of a support disk in the present invention;

[0026] Figure 6 is a schematic structural view of a driving column in the present invention;

[0027] In the figure: 1, workbench; 2, cutting groove; 3, sliding plate; 4, hydraulic rod; 5, connecting rod; 6, connecting seat; 7, circular saw blade; 8, hydraulic cylinder I; 9, support plate; 10, push plate; 11, rubber pad I; 12, connecting frame; 13, limiting plate; 14, hydraulic cylinder II; 15, rubber pad II; 16, connecting column; 17, clamping groove; 18, support seat; 19, rotating rod; 20, support disk; 21, installation groove; 22, fixing groove; 23, slider; 24, spring; 25, limiting wheel; 26, bottom plate; 27, support frame; 28, electric push rod; 29, clamping seat; 30, support plate; 31, electromagnet block I; 32, fixing frame; 33, top plate; 34, driving column; 35, driving wheel; 36, toothed plate; 37, electromagnet block II; 38, limiting frame. DETAILED DESCRIPTION OF THE INVENTION

[0028] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] As Figures 1 to 3 shown, an automatic pipe cutting machine according to an embodiment of the present invention includes a workbench 1; a cutting groove 2 is opened at the middle position on the top surface of the workbench 1; a sliding plate 3 is slidably connected to the bottom of the cutting groove 2; the sliding plate 3 is driven by a servo motor; both ends of the top surface of the sliding plate 3 are fixedly connected with hydraulic rods 4; a connecting rod 5 is installed between the telescopic ends of the two hydraulic rods 4; a connecting seat 6 is rotatably connected to the surface of the connecting rod 5, and the connecting seat 6 is driven by a servo motor; a circular saw blade 7 is rotatably connected to the bottom surface of the connecting seat 6, and the circular saw blade 7 is driven by a servo motor; a fixing assembly is installed on the top surface of the workbench 1; the fixing assembly is used to fix the pipe to be cut; during operation, when cutting the pipe, the embodiment of the present invention can be used. First, the user needs to place the pipe on the top surface of the workbench 1 and move the position to be cut of the pipe to the chute. Subsequently, the fixing assembly will fix the pipe. Then, the user controls the connecting seat 6 to rotate on the surface of the connecting rod 5 so that the angle between the circular saw blade 7 and the pipe to be cut meets the user's requirements. Then, the hydraulic rod 4 is started so that the circular saw blade 7 at the bottom of the connecting seat 6 can cut the pipe. After that, the servo motor drives the sliding plate 3 to move along the chute, so that the rotating circular saw blade 7 completes the cutting of the pipe. Subsequently, the fixing assembly releases the fixation of the pipe, and the user can take off the cut pipe. By deflecting the connecting seat 6, the circular saw blade 7 is driven to deflect together, thereby realizing the inclined cutting of the pipe, so that the cutting surface of the pipe is inclined, which is convenient for subsequent welding, thus avoiding the re-cutting of the pipe and the waste of raw materials.

[0030] As Figures 1 to 2As shown in the figure, the fixing component includes a pair of hydraulic cylinders 1-8, and the two hydraulic cylinders 1-8 are respectively located on both sides of the chute; a pair of support plates 9 are fixedly connected to the top surface of the workbench 1, and the two support plates 9 correspond to the two hydraulic cylinders 1-8 respectively; a push plate 10 is slidably connected to the top surface of the workbench 1, and the distance between the two is adjusted by a screw; one end of the push plate 10 close to the hydraulic cylinder 1-8 and the telescopic end of the hydraulic cylinder 1-8 are both fixedly connected with a rubber pad 1-11; during operation, when the user needs to fix the pipe to be cut, the hydraulic cylinder 1-8 will drive the rubber pad 1-11 at its telescopic end to press against the rubber pad 1-11 on the surface of the push plate 10, so as to clamp the pipe located between the two rubber pads 1-11. When cutting pipes of different diameters or cutting multiple pipes at the same time, in order to make the pipe in the middle of the chute, the user can adjust the position of the push plate 10 by bolts, so that the push plate 10 moves towards the support plate 9, so that the large-diameter pipe or multiple pipes arranged side by side are still in the middle of the chute, thus avoiding the accumulation of pipes at one end, resulting in insufficient cutting of the circular saw blade 7. The rubber pad 1-11 itself has elasticity and can better fit the surface of the pipe, so as to improve the clamping effect on the pipe.

[0031] As Figure 1 shown in the figure, a pair of connecting frames 12 are slidably connected to the top surface of the workbench 1, and the connecting frames 12 are driven by a servo motor; the two connecting frames 12 are respectively located on both sides of the hydraulic cylinder 1-8; a limiting plate 13 is slidably connected to the side of the top surface of the connecting frame 12 close to the support plate 9, and the limiting plate 13 and the connecting frame 12 are adjusted by bolts; the end of the connecting frame 12 away from the limiting plate 13 is fixedly connected with a hydraulic cylinder 2-14; a rubber pad 2-15 is fixedly connected to the telescopic end of the hydraulic cylinder 2-14 and the side surface of the limiting plate 13 close to the hydraulic cylinder 2-14; during operation, when the user needs to convey the pipe to be cut, the user needs to first convey the pipe to be cut to the top surface of the workbench 1 through a conveyor belt, and then the connecting frame 12 slides along the top surface of the workbench 1 under the drive of the servo motor. When the connecting frame 12 slides to both sides of the pipe to be cut, the hydraulic cylinder 2-14 starts and pushes the rubber pad 2-15 towards the limiting plate 13, so as to clamp the pipe to be cut. Subsequently, the servo motor drives the connecting frame 12 and the clamped pipe to move to the chute. After the circular saw finishes cutting the pipe, the connecting frame 12 at the end far from the feeding end will move to both sides of the cut pipe. Subsequently, the hydraulic cylinder 2-14 drives the rubber pad 2-15 to cooperate with the rubber pad 2-15 on the surface of the limiting plate 13 to complete the clamping of the cut pipe. Then the servo motor drives the connecting frame 12 and the clamped pipe to move out of the top surface of the workbench 1, and the hydraulic cylinder 2-14 drives the rubber pad 2-15 away from the cut pipe, so as to cancel the clamping of the pipe, so that the pipe falls off the top surface of the workbench 1, thus completing the automatic loading and unloading operation of the pipe, and avoiding the worker accidentally contacting the circular saw blade 7 during manual loading and unloading, resulting in worker injury.

[0032] As shown Figure 1 in the figure, connection posts 16 are provided at both ends of the connecting rod 5; the bottom surfaces of the two connection posts 16 are fixedly connected to the telescopic ends of the hydraulic rods 4; a clamping groove 17 is formed on the surface of the connection post 16; the clamping groove 17 is adapted to the connecting rod 5; both ends of the connecting rod 5 are arranged in the clamping groove 17; an electrical signal connection is realized between one end of the connecting rod 5 and the inner wall of the clamping groove 17 through a conductive sheet, and the connection post 16 is connected to an external microcomputer; during operation, when the pipe fitting cutting of the embodiment of the present invention is carried out for a long time, the circular saw blade 7 will inevitably be worn. At this time, in order to ensure the normal use of the embodiment of the present invention, the user can pull out the connecting rod 5 from the clamping groove 17 on the surface of the connection post 16, and then the user can insert another connecting rod 5 with a intact circular saw blade 7 into the clamping groove 17 on the surface of the connection post 16 to achieve the rapid replacement of the circular saw blade 7, and avoid directly disassembling the circular saw blade 7 at the connecting rod 5, which affects the production efficiency.

[0033] As shown Figures 3 to 5 in the figure, a pair of support seats 18 are arranged on one side of the workbench 1; a rotating rod 19 is rotatably connected between the two support seats 18; a pair of support disks 20 are fixedly connected to the surface of the rotating rod 19; a plurality of uniformly arranged mounting grooves 21 are formed on the surfaces of the two support disks 20, and the mounting grooves 21 are used for placing the connecting rod 5; fixing grooves 22 are formed on both side walls of the mounting groove 21 and the clamping groove 17; locking components are installed inside the fixing grooves 22; the locking components are used to limit the position of the connecting rod 5; during operation, when replacing the connecting rod 5, the user can place the replaced connecting rod 5, the connecting seat 6 and the circular saw blade 7 in the empty mounting grooves 21 on the surface of the turntable. At the same time, the mounting grooves 21 also store the connecting rod 5, the connecting seat 6 and the circular saw blade 7 for replacement. Therefore, the user can rotate the turntable to take out the connecting rod 5 for replacement and install it into the clamping groove 17 at the connection post 16, which facilitates the user to store spare parts and place worn parts.

[0034] As shown Figure 4As shown, the locking assembly includes a pair of sliders 23, and the sliders 23 are slidably connected to the inner wall of the fixed groove 22; a spring 24 is fixedly connected between the slider 23 and the inner wall of the fixed groove 22; a limiting wheel 25 is rotatably connected between the two sliders 23; during operation, when the connecting rod 5 is inserted into the mounting groove 21 and the clamping groove 17, the connecting rod 5 will press the limiting wheel 25 in the fixed groove 22, causing the limiting wheel 25 to rotate and drive the limiting wheel 25 and the slider 23 to move away from the connecting rod 5, and at the same time compress the spring 24, so that the connecting rod 5 can be inserted into the clamping groove 17 and the mounting groove 21. When the connecting rod 5 no longer presses the limiting wheel 25, the spring 24 resets, causing the limiting wheel 25 to close the openings of the mounting groove 21 and the clamping groove 17, preventing the connecting rod 5 from disengaging from the mounting groove 21 and the clamping groove 17. When the connecting rod 5 needs to be removed from the mounting groove 21 and the clamping groove 17, the user needs to pull the connecting rod 5 to make the connecting rod 5 press the limiting wheel 25 again, so that the limiting wheel 25 is pressed into the fixed groove 22, facilitating the user to remove the connecting rod 5. Through the limiting function of the limiting wheel 25, it is convenient for the user to remove or install the connecting rod 5, thereby reducing the operation difficulty of the user and improving the usability of the embodiment of the present invention.

[0035] As Figure 1 and Figure 5 shown, a bottom plate 26 is fixedly connected to the side of the support base 18 away from the chute; a pair of support frames 27 are fixedly connected to the top surface of the bottom plate 26; a pair of electric push rods 28 are fixedly connected to the top surface of the support frame 27, and the electric push rods 28 are located at the gap between the paired turntables; a clamping assembly is installed at the telescopic end of the electric push rod 28; the clamping group is used to clamp the connecting rod 5; during operation, when the connecting rod 5 needs to be replaced, the sliding plate 3 will drive the hydraulic rod 4 and the connecting rod 5 to move to the two electric push rods 28. Subsequently, the electric push rod 28 is activated to press the clamping assembly onto the surface of the connecting rod 5, thereby completing the clamping of the connecting rod 5. Then the electric push rod 28 continues to push the connecting rod 5, pushing the connecting rod 5 out of the clamping groove 17 and pushing the connecting card all the way into the mounting groove 21 at the turntable. Then the user rotates the turntable, and the electric push rod 28 controls the clamping assembly to clamp the connecting rod 5 to be replaced on the turntable. Subsequently, the electric push rod 28 contracts to pull the connecting rod 5 back into the clamping groove 17, thereby completing the replacement of the connecting rod 5, further reducing the operation difficulty of the user.

[0036] As Figure 1 and Figure 5As shown, the clamping assembly includes a clamping seat 29, and the clamping seat 29 is fixedly connected to the telescopic end of the electric push rod 28; a support plate 30 is fixedly connected to the bottom surface of the clamping seat 29; an electromagnet block one 31 is embedded at one end of the clamping seat 29 away from the electric push rod 28; during operation, when it is necessary to clamp the connecting rod 5, the electric push rod 28 pushes the jaw seat to move towards the surface of the connecting rod 5, and the pressure rod on the surface of the jaw seat squeezes against the surface of the connecting rod 5. Then, the electromagnet block one 31 is activated, and the electromagnet block one 31 will adsorb both ends of the connecting rod 5 and make the connecting rod 5 rest on the support plate 30, thereby fixing the connecting rod 5. While fixing the connecting rod 5, it can also avoid directly squeezing the surface of the connecting rod 5, preventing wear on the contact surface between the end of the connecting rod 5 and the clamping groove 17 and affecting the transmission of electrical signals.

[0037] As Figures 5 to 6 shown, a fixing frame 32 is fixedly connected between the support seat 18 and the bottom plate 26; the fixing frame 32 is arranged in an L shape; the top of the fixing frame 32 on the side away from the workbench 1 is slidably connected with a top plate 33, and the top plate 33 is fixedly connected to the telescopic end of the electric push rod 28; a driving column 34 is rotatably connected to the surface of the workbench 1; a driving wheel 35 is installed on the surface of the driving column 34, and the driving wheel 35 is connected to the driving column 34 through a one-way bearing; a toothed plate 36 is slidably connected to the surface of the workbench 1 above the driving wheel 35, and the toothed plate 36 is meshed with the driving wheel 35; the toothed plate 36 is made of magnetizable metal material; an electromagnet block two 37 is fixedly connected to one end of the top plate 33 close to the toothed plate 36; during operation, when the electric push rod 28 pushes the jaw seat towards the turntable, the top plate 33 will be pushed by the electric push rod 28 and press against the surface of the toothed plate 36. At this time, the toothed plate 36 will drive the driving wheel 35 to rotate. Since a one-way bearing is installed between the driving wheel 35 and the driving column 34, when the push rod pushes the toothed plate 36, the toothed plate 36 will drive the gear to rotate on the surface of the driving column 34. When the clamping seat 29 places the connecting rod 5 into the installation groove 21, the electromagnet block two 37 at the end of the top plate 33 will be activated and adsorb the toothed plate 36. At this time, the electric push rod 28 drives the top plate 33 to move away from the support seat 18, and the top plate 33 will pull the toothed plate 36, thereby driving the driving wheel 35 to rotate. At this time, the driving wheel 35 drives the driving column 34 to rotate through the one-way bearing, and the driving column 34 drives the gear set to rotate, thereby driving the rotating rod 19 and the turntable between the support seats 18 to rotate, so as to rotate the connecting rod 5 to be replaced on the main plate to the position opposite to the clamping seat 29. Subsequently, the electromagnet block two 37 is powered off, and the electric push rod 28 pushes the jaw seat and the electromagnet block two 37 on its surface again to adsorb the connecting rod 5 and bring it to the clamping groove 17, thereby completing the automatic replacement of the connecting rod 5, reducing the replacement difficulty of the connecting rod 5 and improving the replacement efficiency.

[0038] As Figures 5 to 6As shown, the side surfaces of the telescopic ends of the two electric push rods 28 are commonly fixedly connected to the limit frame 38, and the limit frame 38 is located at the top of the electric push rod 28; the limit frame 38 is slidably connected to the fixed frame 32; during operation, when the telescopic end of the electric push rod 28 moves, the limit frame 38 will also follow the telescopic end of the electric push rod 28 to move on the fixed frame 32, and provide an upward pulling force for the telescopic end of the electric push rod 28, to avoid the connecting rod 5 at the end of the electric push rod 28, whose gravity continues to act on one end of the electric push rod 28, causing the electric push rod 28 to bend, thereby affecting its service life.

[0039] During work, when cutting pipe fittings, the embodiment of the present invention can be used. First, the user needs to place the pipe fitting on the top surface of the workbench 1 and move the position of the pipe fitting to be cut to the slide groove. Then the fixing component will fix the pipe fitting. Then the user controls the connecting seat 6 to rotate on the surface of the connecting rod 5 so that the angle between the circular saw blade 7 and the pipe fitting to be cut meets the user's needs. Then the hydraulic rod 4 is started so that the circular saw blade 7 at the bottom of the connecting seat 6 can cut the pipe fitting. Then the servo motor drives the slide plate 3 to move along the slide groove, so that the rotating circular saw blade 7 completes the cutting of the pipe fitting. Then the fixing component releases the fixation of the pipe fitting, and the user is able to remove the cut pipe fitting. By the deflection of the connecting seat 6, the circular saw blade 7 is driven to deflect together, thereby realizing inclined cutting of the pipe fitting, so that the cutting surface of the pipe fitting is inclined to facilitate subsequent welding, thereby avoiding re-cutting of the pipe fitting and waste of raw materials.

[0040] When the user needs to fix the pipe to be cut, the hydraulic cylinder 8 will drive the rubber pad 11 at its telescopic end to press against the rubber pad 11 on the surface of the push plate 10, thereby clamping the pipe located between the two rubber pads 11. When cutting pipes of different diameters or cutting multiple pipes at the same time, in order to make the pipes in the middle of the slide, the user can adjust the position of the push plate 10 through the bolts to move the push plate 10 toward the support plate 9 so that the large-diameter pipes or multiple side-by-side pipes are still in the middle of the slide, thereby avoiding the pipes from piling up at one end and causing insufficient cutting by the circular saw blade 7. The rubber pad 11 itself is elastic and can better fit the surface of the pipe, thereby improving the clamping effect on the pipe.

[0041] When the user needs to convey the pipe fittings to be cut, the user first conveys the pipe fittings to be cut to the top surface of the workbench 1 through the conveyor belt. Then, the connecting frame 12 slides along the top surface of the workbench 1 driven by the servo motor. When the connecting frame 12 slides to both sides of the pipe fittings to be cut, the second hydraulic cylinder 14 is activated and the second rubber pad 15 is pushed towards the limiting plate 13, thereby clamping the pipe fittings to be cut. Subsequently, the servo motor drives the connecting frame 12 and the clamped pipe fittings to move to the chute. After the circular saw finishes cutting the pipe fittings, the connecting frame 12 at the end far from the feeding end will move to both sides of the cut pipe fittings. Subsequently, the second hydraulic cylinder 14 drives the second rubber pad 15 to cooperate with the second rubber pad 15 on the surface of the limiting plate 13 to clamp the cut pipe fittings. Then, the servo motor drives the connecting frame 12 and the clamped pipe fittings to move out of the top surface of the workbench 1, and the second hydraulic cylinder 14 drives the second rubber pad 15 to move away from the cut pipe fittings, thereby canceling the clamping of the pipe fittings and causing the pipe fittings to fall off the top surface of the workbench 1, thus completing the automatic loading and unloading operation of the pipe fittings. Furthermore, when manually loading and unloading, it can prevent workers from accidentally touching the circular saw blade 7, resulting in worker injuries.

[0042] After the circular saw blade 7 of the embodiment of the present invention inevitably wears out after a long time of pipe fitting cutting, in order to ensure the normal use of the embodiment of the present invention, the user can pull out the connecting rod 5 from the clamping groove 17 on the surface of the connecting column 16. Then, the user can insert another connecting rod 5 with a intact circular saw blade 7 into the clamping groove 17 on the surface of the connecting column 16 to achieve the rapid replacement of the circular saw blade 7, avoiding directly disassembling the circular saw blade 7 at the connecting rod 5 and affecting the production efficiency.

[0043] When replacing the connecting rod 5, the user can place the replaced connecting rod 5, the connecting seat 6 and the circular saw blade 7 in the empty mounting groove 21 on the surface of the turntable. At the same time, the mounting groove 21 also stores the connecting rod 5, the connecting seat 6 and the circular saw blade 7 for replacement. Therefore, the user can rotate the turntable, take out the connecting rod 5 for replacement, and install it into the clamping groove 17 at the connecting column 16, thus facilitating the user to store spare parts and place worn parts.

[0044] When the connecting rod 5 is inserted into the installation groove 21 and the clamping groove 17, the connecting rod 5 will squeeze the limiting wheel 25 in the fixing groove 22, causing the limiting wheel 25 to rotate and drive the limiting wheel 25 and the slider 23 to move in the direction away from the connecting rod 5, while compressing the spring 24, so that the connecting rod 5 can be inserted into the clamping groove 17 and the installation groove 21. When the connecting rod 5 no longer squeezes the limiting wheel 25, the spring 24 returns to its original position, so that the limiting wheel 25 closes the notch of the installation groove 21 and the clamping groove 17, preventing the connecting rod 5 from falling out of the installation groove 21 and the clamping groove 17. When the connecting rod 5 needs to be removed from the installation groove 21 and the clamping groove 17, the user needs to pull the connecting rod 5 so that the connecting rod 5 squeezes the limiting wheel 25 again, so that the limiting wheel 25 is pressed into the fixing groove 22, thereby facilitating the user to remove the connecting rod 5. The limiting effect of the limiting wheel 25 makes it convenient for the user to remove or install the connecting rod 5, thereby reducing the user's operating difficulty and improving the usability of the embodiment of the present invention.

[0045] When the connecting rod 5 needs to be replaced, the slide 3 will drive the hydraulic rod 4 and the connecting rod 5 to move to the two electric push rods 28, and then the electric push rod 28 will start, pressing the clamping assembly to the surface of the connecting rod 5, thereby completing the clamping of the connecting rod 5, and then the electric push rod 28 will continue to push the connecting rod 5, pushing the connecting rod 5 out of the clamping groove 17, and pushing the connecting card into the installation groove 21 at the turntable, and then the user rotates the turntable, and the electric push rod 28 controls the clamping assembly to clamp the connecting rod 5 to be replaced on the turntable, and then the electric push rod 28 will retract and pull the connecting rod 5 back to the clamping groove 17, thereby completing the replacement of the connecting rod 5, further reducing the difficulty of operation for the user.

[0046] When it is necessary to clamp the connecting rod 5, the electric push rod 28 pushes the clamping claw seat to move toward the surface of the connecting rod 5, and makes the pressure rod on the surface of the clamping claw seat squeezed to the surface of the connecting rod 5, and then the electromagnet block 31 is started, and then the electromagnet block 31 will adsorb the two ends of the connecting rod 5, and make the connecting rod 5 rest on the support plate 30, thereby fixing the connecting rod 5. While fixing the connecting rod 5, it can also avoid directly squeezing the surface of the connecting rod 5, and avoid wear on the contact surface between the end of the connecting rod 5 and the clamping groove 17, which affects the transmission of electrical signals.

[0047] When the electric push rod 28 pushes the jaw seat towards the turntable, the top plate 33 will, under the push of the electric push rod 28, press the top plate 33 against the surface of the toothed plate 36. At this time, the toothed plate 36 will drive the driving wheel 35 to rotate. Since a one-way bearing is installed between the driving wheel 35 and the driving column 34, when the abutting rod pushes the toothed plate 36, the toothed plate 36 will drive the gear to rotate on the surface of the driving column 34. After the clamping seat 29 places the connecting rod 5 into the installation groove 21, the electromagnet block two 37 at the end of the top plate 33 will be activated and adsorb the toothed plate 36. At this time, the electric push rod 28 drives the top plate 33 to move away from the support seat 18, and the top plate 33 will pull the toothed plate 36, thereby driving the driving wheel 35 to rotate. At this time, the driving wheel 35 drives the driving column 34 to rotate through the one-way bearing, and the driving column 34 will drive the gear set to rotate, thereby driving the rotating rod 19 and the turntable between the support seats 18 to rotate, so as to rotate the connecting rod 5 to be replaced on the main plate to the position opposite to the clamping seat 29. Subsequently, the electromagnet block two 37 is powered off, and the electric push rod 28 pushes the jaw seat and the electromagnet block two 37 on its surface again to adsorb the connecting rod 5 and bring it to the clamping groove 17, thereby completing the automatic replacement of the connecting rod 5, reducing the replacement difficulty of the connecting rod 5, and improving the replacement efficiency.

[0048] When the telescopic end of the electric push rod 28 moves, the limit frame 38 will also move on the fixed frame 32 following the telescopic end of the electric push rod 28 and provide an upward pulling force for the telescopic end of the electric push rod 28, so as to avoid the connecting rod 5 at the end of the electric push rod 28, whose gravity continuously acts on one end of the electric push rod 28, causing the electric push rod 28 to bend and affecting its service life.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic pipe cutting machine, characterized in that: It includes a workbench (1); a cutting groove (2) is formed in the middle of the top surface of the workbench (1); a sliding plate (3) is slidably connected to the bottom of the cutting groove (2); the sliding plate (3) is driven by a servo motor; both ends of the top surface of the sliding plate (3) are fixedly connected with hydraulic rods (4); a connecting rod (5) is installed between the telescopic ends of the two hydraulic rods (4); a connecting seat (6) is rotatably connected to the surface of the connecting rod (5), and the connecting seat (6) is driven by a servo motor; a circular saw blade (7) is rotatably connected to the bottom surface of the connecting seat (6), and the circular saw blade (7) is driven by a servo motor; a fixing component is installed on the top surface of the workbench (1); the fixing component is used for fixing the pipe fittings to be cut; Both ends of the connecting rod (5) are provided with connecting columns (16); the bottom surfaces of the two connecting columns (16) are fixedly connected with the telescopic ends of the hydraulic rods (4); a clamping groove (17) is formed on the surface of the connecting column (16); the clamping groove (17) is adapted to the connecting rod (5); both ends of the connecting rod (5) are arranged in the clamping groove (17); an electrical signal connection is realized between one end of the connecting rod (5) and the inner wall of the clamping groove (17) through a conductive sheet, and the connecting column (16) is connected to an external microcomputer; A pair of support seats (18) are arranged on one side of the workbench (1); a rotating rod (19) is rotatably connected between the two support seats (18); a pair of support discs (20) are fixedly connected to the surface of the rotating rod (19); a plurality of uniformly arranged mounting grooves (21) are formed on the surfaces of the two support discs (20), and the mounting grooves (21) are used for placing the connecting rod (5); fixing grooves (22) are formed on both side walls of the mounting groove (21) and the clamping groove (17); locking components are installed inside the fixing grooves (22); the locking components are used for restricting the position of the connecting rod (5); The locking component includes a pair of sliders (23), and the sliders (23) are slidably connected to the inner wall of the fixing groove (22); a spring (24) is fixedly connected between the sliders (23) and the inner wall of the fixing groove (22); a limiting wheel (25) is rotatably connected between the two sliders (23); A bottom plate (26) is fixedly connected to the side of the support seat (18) away from the chute; a pair of support frames (27) are fixedly connected to the top surface of the bottom plate (26); a pair of electric push rods (28) are fixedly connected to the top surface of the support frames (27), and the electric push rods (28) are located at the gap between the paired turntables; a clamping component is installed at the telescopic end of the electric push rod (28); the clamping component is used for clamping the connecting rod (5); The clamping component includes a clamping seat (29), and the clamping seat (29) is fixedly connected to the telescopic end of the electric push rod (28); a support plate (30) is fixedly connected to the bottom surface of the clamping seat (29); an electromagnet block one (31) is embedded at one end of the clamping seat (29) away from the electric push rod (28); A fixing frame (32) is fixedly connected between the support base (18) and the bottom plate (26); the fixing frame (32) is arranged in an L shape; the top of the fixing frame (32) on the side away from the workbench (1) is slidably connected with a top plate (33), and the top plate (33) is fixedly connected with the telescopic end of the electric push rod (28); a driving column (34) is rotatably connected to the surface of the workbench (1); a driving wheel (35) is installed on the surface of the driving column (34), and the driving wheel (35) is connected to the driving column (34) through a one-way bearing; a toothed plate (36) is slidably connected to the surface of the workbench (1) above the driving wheel (35), and the toothed plate (36) is meshed with the driving wheel (35); the toothed plate (36) is made of magnetizable metal material; an electromagnet block two (37) is fixedly connected to one end of the top plate (33) close to the toothed plate (36).

2. The automatic pipe cutting machine according to claim 1, characterized in that: The fixing assembly includes a pair of hydraulic cylinders one (8), and the two hydraulic cylinders one (8) are respectively located on both sides of the sliding groove; a pair of support plates (9) are fixedly connected to the top surface of the workbench (1), and the two support plates (9) respectively correspond to the two hydraulic cylinders one (8); a push plate (10) is slidably connected to the top surface of the workbench (1), and the distance between the two is adjusted by a screw; rubber pads one (11) are fixedly connected to one end of the push plate (10) close to the hydraulic cylinder one (8) and the telescopic end of the hydraulic cylinder one (8).

3. An automatic pipe cutting machine according to claim 2, characterized in that: A pair of connecting frames (12) are slidably connected to the top surface of the workbench (1), and the connecting frames (12) are driven by a servo motor; the two connecting frames (12) are respectively located on both sides of the hydraulic cylinder one (8); a limiting plate (13) is slidably connected to one side of the top surface of the connecting frame (12) close to the support plate (9), and the limiting plate (13) is adjusted with the connecting frame (12) by a bolt; a hydraulic cylinder two (14) is fixedly connected to one end of the connecting frame (12) away from the limiting plate (13); rubber pads two (15) are fixedly connected to the telescopic end of the hydraulic cylinder two (14) and the surface of the limiting plate (13) close to the hydraulic cylinder two (14).

4. An automatic pipe cutting machine according to claim 1, characterized in that: A limiting frame (38) is fixedly connected to the side surfaces of the telescopic ends of the two electric push rods (28), and the limiting frame (38) is located above the electric push rods (28); the limiting frame (38) is slidably connected with the fixing frame (32).

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