CN211387365U - Laser pipe cutting equipment - Google Patents

Abstract

The utility model provides a laser pipe cutting equipment, it includes frame, control mechanism, fixed fixture, activity fixture, laser cutting mechanism, feed mechanism, unloading mechanism and a plurality of liftout mechanism, activity fixture with unloading mechanism is located respectively the relative both sides of laser cutting mechanism, activity fixture sliding connection in the top of frame, laser cutting mechanism be close to in fixed fixture, feed mechanism is located the lateral part of frame, a plurality of liftout mechanism equidistance interval is located the top of frame, fixed fixture the activity fixture laser cutting mechanism feed mechanism the unloading mechanism with liftout mechanism all with the control mechanism electricity is connected. The utility model discloses can solve among the prior art laser pipe cutting equipment and need the manual work go on unloading in-process, the material loading is efficient low, has consumeed the problem of a large amount of manpower and materials.

Description

Laser pipe cutting equipment

Technical Field

The utility model relates to a pipe material cutting technical field especially relates to a laser cutting equipment.

Background

Among the prior art, because the maturity of laser cutting technique, because laser cutting economy saves time in a plurality of fields of manufacturing, obtains extensive application gradually, consequently brought very big facility for the cutting of pipe material, but present laser pipe cutting equipment need the manual work go on unloading in-process, and the material loading efficiency is low, has consumed a large amount of manpower and materials.

Disclosure of Invention

Based on this, the utility model aims to provide a laser pipe cutting equipment to solve among the prior art laser pipe cutting equipment and need the manual work go on unloading on going up the unloading in-process, material loading efficiency is low, has consumeed the problem of a large amount of manpower and materials.

The technical scheme of the utility model is that: the utility model provides a laser pipe cutting equipment, its includes frame, control mechanism, fixed fixture, activity fixture, laser cutting mechanism, feed mechanism, unloading mechanism and a plurality of liftout mechanism, fixed fixture locates the top of frame, activity fixture with unloading mechanism is located respectively fixed fixture relative both sides, activity fixture sliding connection in the top of frame, laser cutting mechanism be close to in fixed fixture, feed mechanism is located the lateral part of frame, a plurality of liftout mechanism equidistance interval is located the top of frame, fixed fixture the activity fixture laser cutting mechanism feed mechanism the unloading mechanism with liftout mechanism all with the control mechanism electricity is connected.

Optionally, the blanking mechanism comprises a frame body, a finished product collecting box, a waste product collecting box and a plurality of supporting devices, the frame body is internally connected with a plurality of first driving devices for driving the supporting devices to horizontally slide along the frame body, the supporting devices are connected with a second driving device for driving the supporting devices to vertically move, and the top end of the frame body is obliquely arranged;

the top end of the frame body is connected with a plurality of frame arms at intervals, the finished product collecting box is located on a first side face of the frame body, the waste product collecting box is located on a second side face of the frame body, the first side face and the second side face are perpendicular to each other, and the frame arms are arranged on the first side face.

Optionally, a first slide rail is connected inside the frame body, the support device includes a first support block, a first fixed block and a second fixed block, the first support block is driven by the first driving device to horizontally slide along the first slide rail, the first fixed block is connected with the second fixed block in a sliding manner, and the bottom end of the first support block is connected with the second fixed block;

the second driving device penetrates through the first fixing block and is connected with the second fixing block.

Optionally, the first driving device includes a first cylinder and a drag chain, and both the first cylinder and the drag chain are disposed inside the frame body;

and a piston rod of the first cylinder penetrates through the side surface of the first fixed block, and the drag chain is connected with the first fixed block.

Optionally, the second driving device is a second cylinder.

Optionally, the feeding mechanism includes a feeding frame, a plurality of feeding arm structures for moving the pipe placed in the feeding frame to the machining position of the rack, a plurality of third driving devices for driving the pipe to move from the feeding frame to the feeding arm structures, and a fourth driving device for driving the feeding arm structures to move, and the feeding arm structures and the third driving devices are both mounted on the feeding frame;

go up the work or material rest and include that chassis and a plurality of locate the support column at chassis top, the top of support column sets up to the direction downward sloping of frame, the support column is close to the top of the lateral part of frame is equipped with first striker plate, go up the material arm structure with third drive arrangement set up in the both sides that the support column is relative.

Optionally, the third driving device includes a second supporting block, a third cylinder for driving the second supporting block to vertically lift, and a fourth cylinder for driving the third cylinder to horizontally move, and the fourth cylinder is fixed to the supporting column.

Optionally, the feeding arm structure includes a transmission assembly, a sliding assembly and a feeding arm, the transmission assembly includes a first driving wheel, a second driving wheel and a synchronous belt for connecting the first driving wheel and the second driving wheel, the sliding assembly includes a second slide rail and a second slide block slidably connected to the second slide rail, the top end and the bottom end of the second slide block are respectively connected to the feeding arm and the synchronous belt, and the plurality of first driving wheels are all connected to the fourth driving device;

one side of the feeding arm close to the rack is provided with a second material baffle plate used for limiting the pipe fitting, the supporting column is provided with a first position sensor and a second position sensor which are used for detecting the position state of the second sliding block, the first position sensor and the second position sensor are arranged oppositely, and the first position sensor and the second position sensor are both electrically connected with the control mechanism.

Optionally, the fourth driving device includes a motor and a transmission shaft, the motor is connected to the transmission shaft through a reduction box, and the transmission shaft penetrates through the plurality of first transmission wheels.

Implement the embodiment of the utility model provides a, following beneficial effect has:

according to the laser pipe cutting equipment, a worker conveys a pipe to a machining position of the rack through the feeding mechanism, the fixed clamping mechanism and the movable clamping mechanism clamp the pipe, the ejection mechanism provides support for the pipe in the machining process, the laser cutting mechanism cuts the pipe, and the discharging mechanism collects a finished product after cutting is completed, so that automatic feeding and automatic discharging of the pipe are completed, the feeding efficiency and the discharging efficiency of the pipe are improved, the labor cost is saved, and certain popularization is achieved.

Drawings

Fig. 1 is a schematic structural diagram of the laser pipe cutting equipment of the present invention.

Fig. 2 is a schematic structural diagram of the blanking mechanism of the present invention.

Fig. 3 is a schematic view of a connection structure between the supporting device and the second driving device according to the present invention.

Fig. 4 is a schematic view of a part of the structure of the blanking mechanism of the present invention.

Fig. 5 is a schematic view of a part of the structure of the blanking mechanism of the present invention.

Fig. 6 is a first schematic structural diagram of the feeding mechanism of the present invention.

Fig. 7 is a schematic structural diagram of the feeding mechanism of the present invention.

Fig. 8 is a schematic structural diagram of the feeding arm structure of the present invention.

Fig. 9 is a schematic structural diagram of a third driving device according to the present invention.

Description of reference numerals:

1. a frame; 2. a control mechanism; 3. fixing the clamping mechanism; 4. a movable clamping mechanism; 5. a laser cutting mechanism; 6. a blanking mechanism; 61. a frame body; 62. a finished product collecting box; 63. a waste collection box; 64. a support device; 641. a first support block; 642. a first fixed block; 643. a second fixed block; 65. a drag chain; 66. A second driving device; 67. a boom arm; 68. a first slide rail; 69. a first slider; 7. a feeding mechanism; 71. A feeding frame; 711. a chassis; 712. a support pillar; 713. a first striker plate; 72. a loading arm structure; 721. a transmission assembly; 7211. a first drive pulley; 7212. a second transmission wheel; 7213. a synchronous belt; 722. a sliding assembly; 7221. a second slide rail; 7222. a second slider; 723. a feeding arm; 724. a second retainer plate; 73. a first position sensor; 74. a second position sensor; 75. a third driving device; 751. a second support block; 752. a third cylinder; 753. a fourth cylinder; 76. a fourth drive device; 761. an electric motor; 762. A drive shaft; 8. and a material ejecting mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1-9, the embodiment of the present invention provides a laser pipe cutting device, which comprises a frame 1, a control mechanism 2, a fixed clamping mechanism 3, a movable clamping mechanism 4, a laser cutting mechanism 5, and a feeding mechanism 7, unloading mechanism 6 and a plurality of liftout mechanism 8, the top of frame 1 is located to fixed fixture 3, activity fixture 4 is located the both sides that fixed fixture 3 is relative respectively with unloading mechanism 6, 4 sliding connection in the top of frame 1 of activity fixture, laser cutting mechanism 5 is close to in fixed fixture 3, feed mechanism 7 is located the lateral part of frame 1, the top of frame 1 is located to a plurality of liftout mechanism 8 equidistance interval, fixed fixture 3, activity fixture 4, laser cutting mechanism 5, feed mechanism 7, unloading mechanism 6 and liftout mechanism 8 all are connected with control mechanism 2 electricity.

Based on the above setting, the utility model discloses a laser pipe cutting equipment, the staff transports tubular product to frame 1's processing position department through feed mechanism 7, fixed fixture 3 presss from both sides tightly tubular product with activity fixture 4, liftout mechanism 8 provides the support for the tubular product that is in the course of working, laser cutting mechanism 5 cuts tubular product, finished product after the unloading mechanism 6 is accomplished the cutting is collected, thereby accomplish the automatic feeding and the automatic unloading of tubular product, and then improved the material loading efficiency and the unloading efficiency of tubular product, the human cost has been saved, thereby certain popularization nature has.

In this embodiment, as shown in fig. 1 to 5, in order to improve the blanking efficiency of the tube, the blanking mechanism 6 includes a frame body 61, a finished product collection box 62, a waste product collection box 63, and a plurality of support devices 64, the frame body 61 is internally connected with a plurality of first drive devices for driving the support devices 64 to horizontally slide along the frame body 61, the support devices 64 are connected with a second drive device 66 for driving the support devices to vertically move, and the top end of the frame body 61 is obliquely arranged;

the top end of the frame body 61 is connected with a plurality of frame arms 67 at intervals, the finished product collecting box 62 is positioned on a first side surface of the frame body 61, the waste product collecting box 63 is positioned on a second side surface of the frame body 61, the first side surface and the second side surface are perpendicular to each other, and the frame arms 67 are arranged on the first side surface. Specifically, by arranging the finished product collecting box 62, the waste product collecting box 63, the supporting devices 64 and the rack arms 67, the supporting devices 64 have a supporting function on the pipe fittings, after the pipe fittings are cut into pipes, waste materials fall into the waste product collecting box 63, the supporting devices 64 move downwards under the driving of the second driving device 66, the supporting devices 64 drive the finished products to move downwards to the rack arms 67, the rack arms 67 are obliquely arranged at the top end of the frame body 61, so that the finished products slide into the finished product collecting box 62 from the rack arms 67, and the finished products and the waste products are effectively classified in the whole pipe fitting cutting process; by arranging the first driving device, the first driving device can drive the supporting device 64 to horizontally slide along the frame body 61, so that the material receiving frame can support pipes with different lengths; by arranging the second driving device 66, the second driving device 66 can drive the supporting device 64 to move up and down, so that the connection and the separation of the finished products and the rack arm 67 can be realized, and the finished products can slide into the finished product collecting box 62 conveniently;

therefore, the utility model discloses an effective separation of finished product and waste material can be realized to unloading mechanism 6 to can reduce staff's intensity of labour, improve the screening efficiency of finished product and waste material and reduce the personnel selection cost.

In this embodiment, as shown in fig. 1 to 5, the blanking mechanism 6 of the present invention includes three supporting devices 64 and six support arms 67, the three supporting devices 64 are slidably connected to the inside of the frame body 61, the six support arms 67 are spaced from the top end of the frame body 61, and by providing the three supporting devices 64, the three supporting devices 64 can simultaneously support the pipe, so as to achieve stable setting of the pipe; by arranging six support arms 67, the six support arms 67 are spaced at the top end of the frame body 61, so that finished products with different lengths can be conveniently placed on the support arms 67, of course, a worker can select the number of the support devices 64 and the number of the support arms 67 according to needs, and the number of the support devices 64 and the number of the support arms 67 are not limited in this embodiment.

In this embodiment, as shown in fig. 1 to 5, in order to facilitate horizontal movement and vertical movement of a finished product, a first sliding rail 68 is connected inside the frame body 61, the supporting device 64 includes a first supporting block 641, a first fixing block 642 and a second fixing block 643 for supporting the finished product, the first driving device drives the first supporting block 641 to horizontally slide along the first sliding rail 68, the first fixing block 642 is connected with the second fixing block in a sliding manner, and a bottom end of the first supporting block 641 is connected with the second fixing block 643;

the second driving device 66 passes through the first fixing block 642 and is connected to the second fixing block 643. Specifically, by arranging the first fixed block 642, the first fixed block 642 is connected with the second fixed block 643 in a sliding manner, the bottom end of the first fixed block 642 is connected with the first slider 69, and the first slider 69 can horizontally slide along the first slide rail 68 under the driving action of the first driving device, so that the finished product can move in the horizontal direction; by arranging the second fixing block 643, because the first supporting block 641 is connected with the second fixing block 643, the second fixing block 643 can move up and down in the vertical direction under the driving action of the second driving device 66, so that the up and down movement of the first supporting block 641 is realized, the movement of the pipe in the horizontal direction is further realized, and the pipe is conveniently moved to the laser cutting head; by providing the first supporting block 641, the first supporting block 641 can support the pipe.

In this embodiment, as shown in fig. 1 to 5, in order to further facilitate the horizontal movement of the finished product, the first driving device includes a first cylinder and a drag chain 65, and both the first cylinder and the drag chain 65 are disposed inside the frame body 61;

the piston rod of the first cylinder passes through the side of the first fixing block 642, and the drag chain 65 is connected with the first fixing block 642. Specifically, by providing the first air cylinder, the first air cylinder provides power for the movement of the first fixing block 642; by providing the tow chain 65, the air pressure pipe communicating with the first cylinder is provided in the tow chain 65, thereby facilitating the movement of the air pressure pipe in the horizontal direction.

In this embodiment, as shown in fig. 1 to 5, the second driving device 66 is a second air cylinder, and the second air cylinder can provide power for the movement of the second fixing block 643 in the vertical direction, so as to facilitate the movement of the pipe in the vertical direction.

In this embodiment, as shown in fig. 1 to 5, the first supporting block 641 is provided with a groove for supporting the pipe, and the groove can provide a space for placing the pipe, so that the pipe can be conveniently placed on the supporting block.

In the embodiment, as shown in fig. 1 to 5, the second side surface of the frame body 61 is connected with a blanking box, two ends of the blanking box are open, the waste collecting box 63 is located at the bottom of the blanking box, when a pipe needs to be cut, one end of the pipe is moved to a position right above the opening, and a worker cuts a part of the pipe located right above the opening through the laser cutting head, so that the worker can cut the pipe conveniently; through setting up the opening at the both ends of blanking box, the waste material drops to scrap collecting box under the effect of gravity to realize the collection of waste material.

In the embodiment, as shown in fig. 1 to 5, the waste collection box 63 is rotatably connected with a handle, on one hand, when the waste collection box 63 needs to be fixed, the handle is rotated to a position between the blanking box and the finished product collection box 62, and the blanking box and the finished product collection box 62 have a limiting effect on two sides of the handle, so that the waste collection box is conveniently fixed; on the other hand, the handle can be convenient for the staff to remove waste collection box 63 to be convenient for the staff to the processing of waste.

In this embodiment, as shown in fig. 1, 6, 7, 8 and 9, in order to facilitate the loading of the pipes, the loading mechanism 7 includes a loading frame 71, a plurality of loading arm structures 72 for moving the pipes placed in the loading frame 71 to the machining position of the rack, a plurality of third driving devices 75 for driving the pipes to move from the loading frame 71 to the loading arm structures 72, and a fourth driving device 76 for driving the loading arm structures 72 to move, where the loading arm structures 72 and the third driving devices 75 are both mounted on the loading frame 71;

the feeding frame 71 comprises a bottom frame 711 and a plurality of supporting columns 712 arranged at the top of the bottom frame 711, the top ends of the supporting columns 712 are arranged in a downward inclination manner towards the direction of the rack 1, the top ends of the supporting columns 712 close to the side portion of the rack 1 are provided with first striker plates 713, and the feeding arm structures 72 and the third driving devices 75 are arranged at two opposite sides of the supporting columns 712. Specifically, the third driving device 75 can move the tube placed at the top end of the supporting column 712 into the feeding arm structure 72, and the feeding arm structure 72 moves the tube to the rack processing position under the driving of the fourth driving device 76, so as to realize the automatic feeding of the tube;

by arranging the top end of the supporting column 712 to be inclined downwards towards the direction of the rack 1, the tube material is convenient to slide to be close to the rack 1, and the third driving device 75 is convenient to move the tube material from the top end of the supporting column 712 to the feeding arm structure 72.

In this embodiment, as shown in fig. 1, 6, 7, 8 and 9, in order to facilitate the third driving device 75 to move the tube stock from the top end of the supporting column 712 to the loading arm structure 72, the third driving device 75 includes a second supporting block 751, a third air cylinder 752 for driving the second supporting block 751 to vertically ascend and descend, and a fourth air cylinder 75 for driving the third air cylinder 752 to horizontally move, and the fourth air cylinder 75 is fixed to the supporting column 712. Specifically, a V-shaped groove is formed at the top end of the second supporting block 751, so that the support of the pipe materials is facilitated; the second supporting block 751 is lifted by the third cylinder 752, the tube material at the bottom of the supporting column 712 is lifted by the third cylinder 752, and then the fourth cylinder 75 pushes the third cylinder 752 to drive the tube material to pass through the first striker plate 713, so that the tube material is moved out of the first tube material plate without manual movement, and the operation is convenient and fast.

In this embodiment, as shown in fig. 1, 6, 7, 8 and 9, in order to facilitate the feeding arm structure 72 to move the tube material to the processing position of the rack 1, the feeding arm structure 72 includes a transmission assembly 721, a sliding assembly 722 and a feeding arm 73, the transmission assembly 721 includes a first transmission wheel 7211, a second transmission wheel 7212 and a synchronous belt 7213 for connecting the first transmission wheel 7211 and the second transmission wheel 7212, the sliding assembly 722 includes a second slide rail 7221 and a second slide block 7222 slidably connected to the second slide rail 7221, the top end and the bottom end of the second slide block 7222 are respectively connected to the feeding arm 73 and the synchronous belt 7213, and the first transmission wheels 7211 are all connected to the fourth driving device 76;

a second material blocking plate 724 used for limiting the pipe fitting is arranged on one side, close to the rack 1, of the feeding arm 73, a first position sensor 73 and a second position sensor 74 used for detecting the position state of the second sliding block 7222 are arranged on the supporting column 712, the first position sensor 73 and the second position sensor 74 are arranged oppositely, and the first position sensor 73 and the second position sensor 74 are both electrically connected with the control mechanism 2. Specifically, by providing the transmission assembly 721, the transmission assembly 721 transmits the power of the fourth driving device 76 to the sliding assembly 722, so that the sliding assembly 722 drives the feeding arm 73 to move; by arranging the first position sensor 73 and the second position sensor 74, when the feeding arm 73 contacts the first position sensor 73 or the second position sensor 74, the first position sensor 73 or the second position sensor 74 transmits a signal to the control mechanism 2, the control mechanism 2 sends a signal to the fourth driving device 76, the fourth driving device 76 stops working, and when the fourth driving device 76 works again, the fourth driving device 76 drives the feeding arm 73 to move in the opposite direction; by arranging the second material blocking plate 724, the second material blocking plate 724 plays a limiting role on the pipe materials, so that the pipe materials can be stably placed in the supporting arm;

the third driving device 75 moves the tube material placed at the top end of the supporting column 712 to the second baffle plate 724, the fourth driving device 76 drives the transmission assembly 721 to rotate, the transmission assembly 721 drives the sliding assembly 722 to move, and the sliding assembly 722 drives the feeding arm 73 to move, so that the feeding process of the tube material is realized.

In this embodiment, as shown in fig. 1, 6, 7, 8 and 9, the fourth driving device 76 includes a motor 761 and a transmission shaft 762, the motor 761 is connected to the transmission shaft 762 through a reduction gearbox, the transmission shaft 762 passes through a plurality of first driving wheels 7211, the motor 761 drives the transmission shaft 762 to rotate through the reduction gearbox, and the transmission shaft 762 can drive all the first driving wheels 7211 to rotate, so that all the feeding arms 73 can move synchronously.

To sum up, the utility model discloses a laser pipe cutting equipment, the staff transports tubular product to frame 1's processing position department through feed mechanism 7, fixed fixture 3 presss from both sides tightly tubular product with activity fixture 4, liftout mechanism 8 provides the support for the tubular product that is in the course of working, laser cutting mechanism 5 cuts tubular product, finished product after the unloading mechanism 6 is accomplished the cutting is collected, thereby accomplish the automatic feeding and the automatic unloading of tubular product, and then improved the material loading efficiency and the unloading efficiency of tubular product, the human cost has been saved, thereby certain popularization nature has.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the principle of the present invention, and these modifications and variations are also considered as the protection scope of the present invention.

Claims (10)

1. A laser pipe cutting device is characterized by comprising a frame, a control mechanism, a fixed clamping mechanism, a movable clamping mechanism, a laser cutting mechanism, a feeding mechanism, a discharging mechanism and a plurality of material ejecting mechanisms, the fixed clamping mechanism is arranged at the top end of the frame, the movable clamping mechanism and the blanking mechanism are respectively positioned at two opposite sides of the fixed clamping mechanism, the movable clamping mechanism is connected to the top end of the frame in a sliding manner, the laser cutting mechanism is close to the fixed clamping mechanism, the feeding mechanism is positioned at the side part of the frame, a plurality of the material ejecting mechanisms are arranged at the top end of the frame at equal intervals, the fixed clamping mechanism, the movable clamping mechanism, the laser cutting mechanism, the feeding mechanism, the discharging mechanism and the material ejecting mechanism are all electrically connected with the control mechanism.

2. The laser pipe cutting equipment according to claim 1, wherein the blanking mechanism comprises a frame body, a finished product collecting box, a waste collecting box and a plurality of supporting devices, a plurality of first driving devices for driving the supporting devices to horizontally slide along the frame body are connected inside the frame body, a second driving device for driving the supporting devices to vertically move is connected with the supporting devices, and the top end of the frame body is obliquely arranged;

the top end of the frame body is connected with a plurality of frame arms at intervals, the finished product collecting box is located on a first side face of the frame body, the waste product collecting box is located on a second side face of the frame body, the first side face and the second side face are perpendicular to each other, and the frame arms are arranged on the first side face.

3. The laser pipe cutting equipment as claimed in claim 2, wherein a first slide rail is connected inside the frame body, the supporting device comprises a first supporting block, a first fixing block and a second fixing block for supporting a finished product, the first supporting block is driven by the first driving device to horizontally slide along the first slide rail, the first fixing block is connected with the second fixing block in a sliding manner, and the bottom end of the first supporting block is connected with the second fixing block;

the second driving device penetrates through the first fixing block and is connected with the second fixing block.

4. The laser pipe cutting equipment as claimed in claim 3, wherein the first driving device comprises a first cylinder and a drag chain, and the first cylinder and the drag chain are both arranged inside the frame body;

and a piston rod of the first cylinder penetrates through the side surface of the first fixed block, and the drag chain is connected with the first fixed block.

5. The laser pipe cutting apparatus according to claim 3, wherein the second driving means is a second cylinder.

6. The laser pipe cutting apparatus according to claim 1, wherein said feed mechanism includes a feed rack, a plurality of feed arm structures for moving a pipe placed in said feed rack to said rack processing position, a plurality of third driving means for driving a pipe to be moved from said feed rack to said feed arm structures, and a fourth driving means for driving said feed arm structures to move, said feed arm structures and said third driving means being mounted to said feed rack;

the feeding frame comprises an underframe and a plurality of supporting columns arranged at the top of the underframe, the top ends of the supporting columns are arranged in a manner of inclining downwards in the direction of the rack, and the feeding arm structures and the third driving devices are arranged on two opposite sides of the supporting columns.

7. The laser pipe cutting device of claim 6, wherein a first striker plate is arranged at the top end of the supporting column close to the side part of the frame.

8. The laser pipe cutting apparatus according to claim 6, wherein the third driving means includes a second support block, a third cylinder for driving the second support block to vertically ascend and descend, and a fourth cylinder for driving the third cylinder to horizontally move, the fourth cylinder being fixed to the support column.

9. The laser pipe cutting apparatus according to claim 8, wherein the feeding arm structure comprises a transmission assembly, a sliding assembly and a feeding arm, the transmission assembly comprises a first transmission wheel, a second transmission wheel and a synchronous belt for connecting the first transmission wheel and the second transmission wheel, the sliding assembly comprises a second slide rail and a second slide block slidably connected with the second slide rail, the top end and the bottom end of the second slide block are respectively connected with the feeding arm and the synchronous belt, and a plurality of the first transmission wheels are connected with the fourth driving device;

one side of the feeding arm close to the rack is provided with a second material baffle plate used for limiting the pipe fitting, the supporting column is provided with a first position sensor and a second position sensor which are used for detecting the position state of the second sliding block, the first position sensor and the second position sensor are arranged oppositely, and the first position sensor and the second position sensor are both electrically connected with the control mechanism.

10. The laser pipe cutting apparatus as claimed in claim 9, wherein said fourth driving means comprises a motor and a transmission shaft, said motor being connected to said transmission shaft through a reduction box, said transmission shaft passing through a plurality of said first driving wheels.

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