CN216607453U - A pipe rotary sawing device - Google Patents

Abstract

The utility model discloses a pipe rotary sawing device, comprising a machine base, which is characterized in that: a rotary clamp assembly for clamping a pipe material to rotate around its own center is installed on the machine base, and a rotary clamp is located on the machine base. The upstream of the clamp assembly is installed with an automatic feeding device that feeds the pipe longitudinally into the rotating clamp assembly, and a sawing head driven by the feeding power device is installed on the machine base in a lateral sliding manner on one side of the rotating clamp assembly. , The machine base is also provided with a material receiving device for receiving the sawed material, the material receiving device cooperates with the rotating clamp assembly, the device can automatically feed the pipe material, speed up the sawing speed, and reduce the sawing The sawing head is worn out when the pipe is cut, and the sawed material can be automatically received, so that the pipe sawing is automated, the production cost is saved, and the production precision and efficiency of the device are improved.

Description

A pipe rotary sawing device

technical field

The utility model relates to a sawing device, in particular to a rotary sawing device for pipes.

Background technique

As a mechanical equipment for sawing materials, sawing machines are widely used in the field of pipe production. The sawing machine can not only improve the efficiency of sawing materials, but also effectively avoid material damage. When the pipe is sawed, it needs to be clamped by both ends, leaving an interval in the middle to cut the pipe from the interval by the sawing head, which requires The radius of the blade is larger than the diameter of the pipe, the wear of the blade is also very large, and there will always be a piece of pipe left in the process of feeding the pipe. The sleeve device can automatically feed the pipe material, speed up the sawing speed, reduce the wear of the sawing head when sawing the pipe material, and can also automatically receive the sawed material.

Utility model content

The technical problem to be solved by the utility model is: to provide a pipe rotary sawing device, which can automatically feed the pipe material, speed up the sawing speed, reduce the wear of the sawing head when sawing the pipe material, and can automatically receive the sawing After the material is removed, the pipe sawing is automated, the production cost is saved, and the production accuracy and efficiency of the device are improved.

In order to solve the above-mentioned technical problems, the technical solution of the present invention is as follows: a rotary sawing device for pipe materials, comprising a machine base, on which a rotary clamp assembly for clamping the pipe material to rotate around its own center is installed, and the machine An automatic feeding device is installed on the seat upstream of the rotating clamp assembly to feed the pipe longitudinally into the rotating clamp assembly, and a side of the rotating clamp assembly is laterally slidably installed on the base with a feeding power device. The driven sawing head is also provided with a material receiving device for receiving the sawed material, and the material receiving device cooperates with the rotating clamp assembly.

As a preferred solution, the automatic feeding device includes a feeding frame located on one side of the machine base, and a longitudinal sliding seat driven by a longitudinal power device is installed longitudinally on the feeding frame. A feeding clamp assembly driven by a clamping power device is installed laterally on the seat, and a vertical column is also arranged on the vertical sliding seat, and a lifting seat driven by a lifting power device is installed on the vertical column. A longitudinal push rod inserted into the pipe hole is fixed, a drive channel is arranged inside the longitudinal push rod, a number of support blocks are radially slidably installed on the free end of the longitudinal push rod, and the longitudinal push rod is installed on the The driving channel is communicated with the driving air path for driving the radial expansion and contraction of the holding block.

As a preferred solution, an auxiliary support structure for supporting pipes is further provided on the longitudinal sliding seat upstream of the feeding clamp assembly, the auxiliary support structure includes a mounting support and a lifting and mounting on the mounting support The roller frame on the roller frame is rotatably installed with auxiliary support rollers, and a height adjustment mechanism for adjusting the height of the roller frame is installed on the installation support.

As a preferred solution, the installation support includes two guide columns fixed on the longitudinal sliding seat, the upper ends of the guide columns are provided with mounting plates, and the two ends of the roller frame are slidably sleeved on the guide columns , the height adjustment mechanism includes an adjustment screw that is rotatably mounted on the mounting plate, and the threaded section of the adjustment screw is threadedly connected to the roller frame.

As a preferred solution, the longitudinal push rod includes a push rod body fixed on the lift seat, the driving channel is arranged inside the push rod body, and the push rod body is provided with a convenient and driving air circuit The connecting hole for connection, the end of the push rod body is screwed with a connecting head, the connecting head is provided with a driving chamber that communicates with the driving channel, and the connecting head is provided with evenly distributed and driving At least two radial installation holes communicated with the chambers, the holding block is radially slidably installed in the radial installation holes, and the holding block is in sealing fit with the radial installation holes.

As a preferred solution, the material receiving device includes a finished product receiving device and a tailing material receiving device, the machine base is provided with a blanking port on the downstream side of the rotating clamp assembly, and the tailing material receiving device It is arranged below the blanking port for receiving and outputting tail materials; the finished product receiving device includes a receiving chute slidingly installed on the machine base, and the material receiving chute is driven by the material receiving power device at the material receiving station. Sliding between and avoidance stations.

As a preferred solution, a plurality of feeding guide rods are arranged on the feeding chute, and gaps are formed between the feeding guide rods to facilitate the falling of metal chips.

As a preferred solution, the rotary clamp assembly includes a clamp base fixed on the machine base, a rotary clamp is rotatably mounted on the clamp base, and a rotary clamp is installed on the clamp base to drive the rotary clamp Rotary power unit for tongs to rotate.

As a preferred solution, the tailing material receiving device includes a blanking hopper located inside the machine base and below the blanking port, and a tailings conveyor belt is arranged below the blanking hopper.

After the above technical solution is adopted, the effect of the present utility model is: because the pipe rotary sawing device includes a machine base, the machine base is installed with a rotating clamp assembly for clamping the pipe material to rotate around its center, and the machine base is An automatic feeding device is installed on the upstream side of the rotating clamp assembly to feed the pipe longitudinally into the rotating clamp assembly, and a lateral sliding installation on one side of the rotating clamp assembly is driven by the feeding power device on the base. The sawing head is also provided with a material receiving device for receiving the sawed material. The material receiving device cooperates with the rotating clamp assembly, and the pipe is longitudinally fed to the rotating clamp through the automatic feeding device. In the clamp assembly, the pipe is clamped by the rotating clamp assembly and rotated around its own center and sawed with the sawing head, so that the sawing process can be accelerated, and the cutting depth of the sawing head can be cut only by the thickness of the pipe wall. The sawing head wears less, and after the sawing is completed, the material receiving device can automatically feed the pipe material, speed up the sawing speed, reduce the wear of the sawing head when sawing the pipe, and can also automatically receive the sawed material. material, automatic pipe sawing, saving production costs, and improving the production accuracy and efficiency of the device.

And because the automatic feeding device includes a feeding frame located on one side of the machine base, the longitudinal sliding seat driven by the longitudinal power device is installed longitudinally on the feeding frame, and the longitudinal sliding seat is slidably installed on the vertical sliding seat. There is a feeding clamp assembly driven by a clamping power device, and a vertical column is also arranged on the longitudinal sliding seat, and a lifting seat driven by a lifting power device is installed on the vertical column. The longitudinal push rod in the hole, the inside of the longitudinal push rod is provided with a drive channel, the free end of the longitudinal push rod is radially slidably installed with a number of support blocks, and the drive channel on the longitudinal push rod is connected to the drive The air passage is connected to drive the radial contraction of the support block, and the vertical sliding seat drives the vertical column to move in the longitudinal direction, and then the vertical push rod is controlled by the lifting power device to move up and down, so that the longitudinal push rod can enter the pipe in the longitudinal direction, and then the vertical push rod can enter the pipe in the longitudinal direction. The ventilation makes the support block radially slide in contact with the inner wall of the pipe, and then the pipe is fed and sawed through the longitudinal movement of the longitudinal sliding seat. It can also be sawed, effectively helping the feeding of the rotary sawing device, saving resources and improving efficiency.

In addition, an auxiliary support structure for supporting pipes is also provided on the longitudinal sliding seat upstream of the feeding clamp assembly, and the auxiliary support structure includes an installation support and a roller frame mounted up and down on the installation support, Auxiliary support rollers are rotatably installed on the roller frame, and a height adjustment mechanism for adjusting the height of the roller frame is installed on the installation support, which helps the longitudinal sliding seat to play a supporting role and makes the pipe conveying smoothly. Accommodates pipes of various diameters and makes them coaxial with the center of the rotating clamp assembly during feeding.

In addition, since the mounting support includes two guide columns fixed on the longitudinal sliding seat, the upper ends of the guide columns are provided with mounting plates, and the two ends of the roller frame are slidably sleeved on the guide columns, and the height adjustment The mechanism includes an adjusting screw which is rotatably mounted on the mounting plate, and the thread section of the adjusting screw is connected with the roller frame by screw thread connection, so that the height adjusting mechanism has a simple structure, reliable connection and convenient assembly and disassembly.

And because the longitudinal push rod includes a push rod body fixed on the lift seat, the drive channel is arranged inside the push rod body, and the push rod body is provided with a connecting hole for convenient connection with the driving air path, The end of the push rod body is screwed with a connecting head, the connecting head is provided with a driving chamber that communicates with the driving channel, and the connecting head is provided with evenly distributed at least Two radial mounting holes, the holding block is radially slidably installed in the radial mounting hole, the holding block and the radial mounting hole are sealed and matched, and the air passage is driven to ventilate the connecting head. The holding block protrudes radially. Due to the sealing fit, the holding block is firmly attached to the pipe. At the same time, since the connecting head is threaded on the push rod body, the connecting head of different sizes can be replaced. It can be suitable for automatic feeding of pipes with different inner hole diameters, and the body of the push rod and the connecting head are made in one body, and the processing difficulty is lower.

In addition, because the material receiving device includes a finished product receiving device and a tailing material receiving device, the machine base is provided with a blanking port on the downstream side of the rotating clamp assembly, and the tailing material receiving device is arranged at the blanking port. The bottom part is used to receive the output tail; the finished product receiving device includes a receiving chute slidingly installed on the machine base, and the material receiving chute is driven by the material receiving power device between the material receiving station and the avoidance station. Sliding between, so that the finished products and tailings can be clearly classified, which facilitates the collection of items and improves efficiency.

In addition, because there are several splicing guide rods arranged on the splicing chute, a gap is formed between the splicing guide rods to facilitate the falling of metal chips, so that the metal chips on the sawed pipe fall from the gaps. In this way, the metal chips fall from the gap without causing wear on the surface of the pipe, and the splicing chute is a number of splicing guide rods, which can reduce the contact area with the pipe, reduce friction, and facilitate the handling of the pipe. move.

In addition, because the tailing material receiving device includes a blanking hopper located inside the machine base and below the blanking port, a tailing material conveyor belt is arranged below the blanking material hopper, which is convenient for collecting the tailing material.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

1 is a perspective view of an embodiment of the present utility model;

2 is a perspective view of an automatic feeding device according to an embodiment of the present invention;

3 is a top view of an embodiment of the present invention;

4 is a perspective view of a finished product receiving device according to an embodiment of the present invention;

In the picture: 1. Machine base; 2. Servo motor; 3. Clamp base; 4. Rotary clamp; 5. Saw cutting head; 6. Finished material receiving device; 61. Single-axis cylinder; 62. Material receiving chute ;63, material receiving guide rod; 7, material receiving station; 8, avoidance station; 9, tailing material receiving device; 91, blanking port; 92, blanking hopper; 93, tail material conveyor belt; 10, feeding Material rack; 11. Linear module; 12. Longitudinal sliding seat; 13. Upright column; 14. Single-head cylinder; 15. Lifting seat; 16. Longitudinal push rod; 161. Connection hole; 162. Drive channel; head; 164, drive chamber; 165, support block; 17, mounting support; 171, mounting plate; 172, guide column; 173, adjusting screw; 18, roller frame; 181, auxiliary support roller; 19, double head cylinder; 20, feeding clamp assembly; 21, first travel switch; 22, second travel switch.

Detailed ways

The present utility model will be further described in detail below through specific embodiments.

As shown in Figures 1 to 3, a pipe rotary sawing device includes a machine base 1, on which a rotary clamp assembly for clamping the pipe to rotate around its center is installed, and on the machine base 1 An automatic feeding device that feeds the pipe longitudinally into the rotating clamp assembly is installed upstream of the rotating clamp assembly. The sawing head 5, the machine base 1 is also provided with a material receiving device for receiving the sawed material, and the material receiving device cooperates with the rotating clamp assembly. In this embodiment, the sawing head 5 is partially For the existing structure, the continuously variable motor can be used to control the feeding of the sawing head 5, the screw and nut mechanism can be used to move the sawing head 5 laterally, and the pipe material can be longitudinally fed into the rotating clamp assembly through the automatic feeding device. Then, the pipe is clamped by the rotating clamp assembly and rotated around its center and is sawed with the sawing head 5, so that the sawing process is accelerated. The head 5 wears less, and after the sawing is completed, the material receiving device can automatically feed the pipe material, speed up the sawing speed, reduce the wear of the sawing head 5 when sawing the pipe, and can also automatically receive the sawed material. material, automatic pipe sawing, saving production costs, and improving the production accuracy and efficiency of the device.

In this embodiment, the automatic feeding device includes a feeding frame 10 located on one side of the machine base 1, and a longitudinal sliding seat 12 driven by a longitudinal power device is installed on the feeding frame 10 longitudinally. The longitudinal sliding seat 12 is laterally slidably installed with a feeding clamp assembly 20 driven by a clamping power device, and a vertical column 13 is also installed on the longitudinal sliding seat 12. The lift seat 15 is fixed with a longitudinal push rod 16 inserted into the pipe hole, the longitudinal push rod 16 is provided with a drive channel 162 inside, and the free end of the longitudinal push rod 16 slides radially on A number of holding blocks 165 are installed, and the driving channel 162 on the longitudinal push rod 16 communicates with the driving air path to drive the radial expansion and contraction of the holding blocks 165. The feeding frame 10 is also installed with a limit The first stroke 21 switch and the second stroke switch 22 in the sliding position of the longitudinal slide 12, the first stroke 21 switch is located on the longitudinal slide 12 away from the limit position of the rotating clamp assembly, and the second stroke switch 22 is located in the longitudinal direction. The sliding seat 12 is close to the limit position of the rotating clamp assembly. The longitudinal power device is a linear module 11. The linear module 11 drives the feeding clamp assembly 20 on the longitudinal sliding seat 12. The clamping power device includes a double The head cylinder, and then the clamping and loosening of the feeding clamp assembly 20 are controlled by the telescoping of both ends of the double head cylinder, so that the longitudinal movement of the pipe can be driven. The lifting power device includes a single head cylinder 14. The single head cylinder 14 The head cylinder 14 can drive the longitudinal push rod 16 to rise and fall. When the pipe is sawed to the length that the feeding clamp assembly 20 cannot hold the feeding material, the linear module 11 drives the vertical column 13 on the longitudinal slide 12 to the switch position of the first stroke 21 When the free end of the longitudinal push rod 16 on the upright column 13 is above the position of the tail of the pipe, the single-headed air cylinder 14 drives the longitudinal push rod 16 to descend, so that the longitudinal push rod 16 is aligned with the pipe hole, and then inserted into the pipe hole, by driving The channel 162 makes the support block 165 contact with the inner wall of the pipe hole to tighten, and the pipe can continue to be fed through frictional force to complete the sawing. It can also be sawed, effectively improving the defects of the rotary sawing machine, saving resources and improving efficiency.

As shown in FIG. 3 , an auxiliary support structure for supporting pipes is also provided on the longitudinal sliding seat 12 upstream of the feeding clamp assembly 20 . The roller frame on the support 17, the auxiliary support roller is rotatably installed on the roller frame, the height adjustment mechanism for adjusting the height of the roller frame is installed on the installation support 17, and the installation support 17 includes a vertical Two guide posts 172 on the sliding seat 12, the upper ends of the guide posts 172 are provided with mounting plates 171, the two ends of the roller frame are slidably sleeved on the guide posts 172, and the height adjustment mechanism includes a rotating installation on the mounting plate 172. The adjusting screw on the plate 171, the threaded section of the adjusting screw and the roller frame are threadedly connected, and by setting the auxiliary support structure, when the feeding clamp assembly 20 is not clamping the pipe, it plays a supporting role, preventing the The tube is too long and the tube is bent, and the auxiliary support structure includes a roller frame, and an auxiliary support roller is installed on the roller frame, so that the support roller can also follow the rotation when the tube is driven, which can effectively reduce friction and make feeding smooth. The threaded connection enables the height of the support rollers to be adjusted so that pipes of different diameters can be clamped coaxially with the rotating clamp assembly.

The longitudinal push rod 16 includes a push rod body fixed on the lift seat 15 , the drive channel 162 is arranged inside the push rod body, and the push rod body is provided with a connecting hole for convenient connection with the driving air path. 161, the end of the push rod body is screwed with a connecting head 163, the connecting head 163 is provided with a driving chamber 164 that communicates with the driving channel 162, and the connecting head 163 is provided with evenly distributed At least two radial mounting holes communicated with the driving chamber 164, the holding block 165 is radially slidably installed in the radial mounting holes, and the holding block 165 is in sealing fit with the radial mounting holes, The support block 165 can be effectively attached to the inner wall of the pipe hole through the sealing fit, so that there is enough friction to drive the pipe material. The connecting heads 163 of different sizes can be suitable for automatic feeding of pipes with different inner hole diameters, and the push rod body and the connecting head 163 are made separately, which is less difficult to process.

As shown in FIG. 1 and FIG. 3 , the material receiving device includes a finished material receiving device 6 and a tail material receiving device 9, and a material blanking port 91 is provided on the machine base 1 on the downstream side of the rotating clamp assembly, so The tailing material receiving device 9 is arranged below the blanking port 91 for receiving and outputting tailings. A tail material conveying belt 93 is arranged below the blanking hopper 92 , and the tailing material falls on the tailing material conveying belt 93 through the blanking hopper 92 , which facilitates the collection of the tailing material. The finished product receiving device 6 includes a material receiving chute 62 slidably installed on the machine base 1 . As shown in FIG. 4 , a plurality of material receiving guide rods 63 are arranged on the material receiving chute 62 . A gap is formed between the rods 63 to facilitate the falling of metal chips, so that the metal chips on the sawed pipe fall from the gap, so that the metal chips fall from the gap without causing wear on the surface of the pipe, and the material can be received. The chute 62 is a number of splicing guide rods 63, which can reduce the contact area with the pipe material, reduce friction, and facilitate the movement of the pipe material; Sliding between position 7 and avoidance station 8, the material receiving power device includes a uniaxial cylinder 61, the material receiving station 7 is located at the position where the material receiving chute 62 is below the rotating clamp assembly, the avoidance station 8 is located at the position where the material receiving chute 62 is far away from the rotating clamp assembly, and the material receiving chute 62 can be controlled to receive the required finished products by extending and retracting the guide rod of the single-axis air cylinder 61, so as to automate the device and improve the efficiency.

In this embodiment, the rotating clamp assembly includes a clamp base 3 fixed on the machine base 1 , a rotating clamp 4 is rotatably mounted on the clamp base 3 , and a drive is installed on the clamp base 3 The rotary power device for rotating the rotary clamp 4 includes a servo motor 2 .

The working principle of the utility model: first, when the rotary sawing machine is working, a single pipe is fed, and the feeding is carried out through the automatic feeding device. There is an auxiliary support structure on it, so that in the process of moving, the pipe can be supported and the height of the pipe can be adjusted, and then the feeding clamp assembly 20 starts to work. The module 11 drives the longitudinal slide 12 to move toward the second travel switch 22, so that the clamped pipe moves with the longitudinal slide 12, and the pipe is longitudinally fed into the rotating clamp assembly, and the clamp assembly is fed. Loosen, and then the pipe is clamped by the rotating clamp assembly to rotate around its own center. At the same time, the sawing head 5 is driven by the stepless speed change motor to rotate, and then approach the pipe through the transverse sliding seat for sawing. After the sawing is completed, the material is connected The device receives the material, the single-axis air cylinder 61 pushes the material receiving chute 62 to move to the material receiving station 7 for finished material receiving, and then the longitudinal slide 12 repeats the above steps to continue to drive the pipe material until the remaining length of the pipe material. The clamp assembly can no longer continue. For feeding, the longitudinal push rod 16 is used. It is also the linear module 11 that drives the longitudinal slide 12 to move the longitudinal push rod 16 on the column 13 to the first switch stroke position. 16 descends, when the longitudinal push rod 16 is coaxial with the center of the pipe hole, the linear module 11 drives the longitudinal slide 12 to move upstream, so that the longitudinal push rod 16 is inserted into the pipe hole, and then the air enters from the connecting hole 161 through the drive channel 162 The driving chamber 164 makes the holding block 165 fit and tighten with the inner hole of the pipe, and controls the feeding of the pipe. After a sufficient length is extended from the rotating clamp assembly, the holding block 165 is released and clamped by the rotating clamp assembly. Rotate, the sawing head 5 continues to be driven by the stepless variable speed motor for sawing, and then the finished product is spliced until the length of the pipe is lower than the length of the finished product, which becomes the tail material, and the splicing chute 62 returns to the avoidance station 8, through the longitudinal push rod 16 Push out the tail material conveying belt 93 that falls under the hopper 92 from the rotating clamp assembly to collect the tail material, and then repeat the steps at the beginning to load a new pipe material for sawing.

The above-mentioned embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. On the basis of not departing from the design spirit of the present invention, various deformations and modifications made to the technical solutions of the present invention shall be It falls into the protection scope determined by the claims of the present invention.

Claims (9)

1. The utility model provides a tubular product rotary saw cuts device, includes the frame, its characterized in that: the pipe cutting machine is characterized in that a rotary clamp assembly used for clamping a pipe to rotate around the center of the pipe cutting machine is installed on the base, an automatic feeding device used for longitudinally feeding the pipe into the rotary clamp assembly is installed on the upper portion, located on the upper portion of the rotary clamp assembly, of the base, a sawing head driven by a feeding power device is installed on one side, located on the rotary clamp assembly, of the base in a transverse sliding mode, a material receiving device used for receiving materials after sawing is further arranged on the base, and the material receiving device is matched with the rotary clamp assembly.

2. A pipe rotary sawing device as claimed in claim 1, wherein: automatic feeding device is including being located the feed frame of frame one side, vertical slidable mounting has by vertical power device driven vertical slide in the feed frame, lateral sliding mounting has by centre gripping power device driven feed clamp subassembly on the vertical slide, still be provided with the stand on the vertical slide, install the lift seat by lift power device driven on the stand, be fixed with the downthehole vertical push rod of inserting tubular product on the lift seat, the inside of vertical push rod is provided with drive passage, radial slidable mounting has a plurality of to prop tight piece on the free end of vertical push rod, drive passage on the vertical push rod links with the drive gas circuit and is used for the drive to prop radial flexible of tight piece.

3. A pipe rotary sawing device according to claim 2, characterized in that: an auxiliary supporting structure for supporting the pipes is further arranged on the upper stream of the feeding clamp assembly on the longitudinal sliding seat, the auxiliary supporting structure comprises an installation support and a roller frame arranged on the installation support in a lifting mode, an auxiliary supporting roller is arranged on the roller frame in a rotating mode, and a height adjusting mechanism for adjusting the height of the roller frame is arranged on the installation support.

4. A pipe rotary sawing device according to claim 3, characterized in that: the utility model discloses a roller frame, including the roller frame, the roller frame is provided with the roller frame, the installation support is including being fixed in two guide posts on vertical slide, the upper end of guide post all is provided with the mounting panel, the both ends sliding sleeve of roller frame is on the guide post, height adjusting mechanism installs the adjusting screw on the mounting panel including rotating, threaded connection between adjusting screw's screw thread section and the roller frame.

5. The pipe rotary sawing device of claim 4, wherein: the vertical push rod is including being fixed in the push rod body on the seat that goes up and down, drive channel set up in the inside of push rod body, be provided with the connecting hole that makes things convenient for and drive the gas circuit to be connected on the push rod body, the tip threaded connection of push rod body has connecting head, be provided with the drive cavity with the drive channel intercommunication in the connecting head, be provided with evenly distributed in the connecting head and drive two at least radial mounting holes of cavity intercommunication, prop tight piece radial slidable mounting in the radial mounting hole, prop between tight piece and the radial mounting hole sealed cooperation.

6. The pipe rotary sawing device of claim 5, wherein: the material receiving device comprises a finished product material receiving device and a tailing material receiving device, a blanking port is formed in the base and located on the downstream side of the rotary clamp assembly, and the tailing material receiving device is arranged below the blanking port and used for receiving output tailing materials; the finished product receiving device comprises a receiving chute which is slidably mounted on the base, and the receiving chute is driven by a receiving power device to slide between a receiving station and an avoiding station.

7. The pipe rotary sawing device of claim 6, further comprising: a plurality of material receiving guide rods are arranged on the material receiving chute, and gaps which are convenient for metal scraps to fall are formed among the material receiving guide rods.

8. A pipe rotary sawing device as claimed in claim 7, wherein: the rotary clamp assembly comprises a clamp seat fixed on the base, a rotary clamp is rotatably mounted on the clamp seat, and a rotary power device for driving the rotary clamp to rotate is mounted on the clamp seat.

9. A pipe rotary sawing device according to claim 8, wherein: the tailing receiving device comprises a blanking hopper which is positioned in the base and below the blanking port, and a tailing conveying belt is arranged below the blanking hopper.

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