A round pipe end shaping device for construction sites

Abstract

The present invention discloses a round tube end shaping device for use on construction sites, comprising a conveying mechanism for conveying round tubes, a deburring mechanism arranged on the front end side of the conveying mechanism for deburring the round tube ends, and a feeding mechanism arranged in front of the conveying mechanism for conveying the front end of the round tube to the deburring mechanism; when deburring the round tube ends, the conveying mechanism intermittently conveys the round tubes forward, and at the same time, the feeding mechanism pushes the front end of the round tube to the right until the round tube ends reach the deburring mechanism, and the deburring mechanism arranges and deburrs the round tube ends, so as to facilitate the erection of the scaffolding next time.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a round pipe end shaping device used on construction sites. Background Art

[0002] Scaffolding is a common auxiliary facility in construction. Scaffolding refers to various supports erected on-site to facilitate worker operations and address vertical and horizontal transportation issues. Scaffolding is commonly used in concrete pouring, brickwork, decoration and painting, pipe installation, and equipment installation, and plays a crucial role in building and installation.

[0003] Scaffolding is usually formed by assembling several steel pipes together. However, after long-term use, the ends of the steel pipes will produce deformation and burrs due to improper operation. The deformation and burrs at the ends of the steel pipes will affect the next erection of the scaffolding. Therefore, there is an urgent need for a device to reshape the ends of the steel pipes. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and provide a round tube end shaping device for use on construction sites, which can remove burrs on the ends of the round tubes and facilitate the erection of the next scaffolding.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A round pipe end shaping device for use on a construction site, comprising a conveying mechanism for conveying the round pipe, a deburring mechanism disposed on the side of the front end of the conveying mechanism for deburring the round pipe end, and a feeding mechanism disposed in front of the conveying mechanism for conveying the front end of the round pipe to the deburring mechanism;

[0007] The feeding mechanism includes a first bracket arranged in front of the conveying mechanism, a first slider arranged on the first bracket and moving left and right on the first bracket, and a lifting plate arranged on the rear side of the first slider and lifting and lowering on the first slider, the lifting and lowering of the lifting plate are linked to the left and right sliding of the first slider, a first cross bar is provided at the rear end of the lifting plate, a pressure head that cooperates with the round tube is provided at the rear end of the first cross bar, and a buffer mechanism is provided between the pressure head and the first cross bar;

[0008] The deburring mechanism includes a second bracket arranged on the side of the conveying mechanism, a driving rod arranged on the second bracket and cooperating with the inner wall of the round tube and driving the round tube to rotate, and a second slider arranged on the second bracket and moving back and forth on the second bracket. The second slider is provided with a grinding mechanism for grinding the end of the round tube. The movement of the second slider is linked to the movement of the first slider. The driving rod is provided with a spreading mechanism for restoring the shape of the end of the round tube.

[0009] The spreading mechanism comprises a spreading plate spaced apart in the driving rod and a driving mechanism arranged in the driving rod for driving the spreading plate to spread synchronously.

[0010] Furthermore, a first driving rod is provided at the front end of the first slider, a first rocker arm is provided at the front end of the first bracket, which is rotatably connected to the first bracket at an intermediate position, a first elongated hole is provided at the upper end of the first rocker arm, which cooperates with the first driving rod, a second elongated hole is provided at the lower end of the first rocker arm, a first motor is provided at the lower end of the first bracket, a turntable is provided on the output shaft of the first motor, and a second driving rod cooperating with the second elongated hole is provided at an eccentric position of the turntable.

[0011] Furthermore, a guide groove is provided at the right end of the lifting plate, and the guide groove includes horizontal parts at both ends and an arc part arranged between the two horizontal parts. The height of the horizontal part at the left end is higher than that of the horizontal part at the right end. The right end of the first bracket is provided with a third driving rod that cooperates with the guide groove.

[0012] Furthermore, the buffer mechanism includes a guide rod provided on the upper end of the pressure head, the upper end of the guide rod passes through the first cross bar and is slidably connected to the first cross bar, a baffle is provided on the upper end of the guide rod, and a compression spring is provided on the guide rod;

[0013] Furthermore, the bottom of the pressure head is an arc, and a roller is provided at the arc.

[0014] Furthermore, the second bracket is provided with a second motor for driving the driving rod to rotate, and the driving rod is provided with a step for positioning the end of the circular tube.

[0015] Furthermore, the grinding mechanism includes a third motor fixed to the upper end of the second slider and a grinding disc arranged on the output shaft of the third motor. An arc-shaped grinding groove that cooperates with the right end of the outer cylindrical surface of the circular tube is provided on the outer arc of the left side of the grinding disc. The third motor drives the grinding disc to rotate.

[0016] Furthermore, a second cross bar is provided at the right end of the second slider, a fourth driving rod is provided at the lower end of the second cross bar, a second rocker arm is provided in the second bracket, the middle position of the second rocker arm is rotatably connected to the second bracket, the upper end of the second rocker arm cooperates with the second slider, a tension spring is provided at the rear end of the second slider and the rear end of the second bracket, and an arc surface is provided at the lower end of the second rocker arm that cooperates with the fourth driving rod, and the arc surface bends forward from left to right.

[0017] Furthermore, an opening is provided at the upper end of the second bracket;

[0018] A fifth driving rod is provided on the left side of the second sliding block, and the fifth driving rod is in contact with the upper end of the front side surface of the second swing rod.

[0019] Furthermore, the conveying mechanism includes a conveyor belt and a plurality of support grooves for supporting the round tubes, which are evenly arranged on the conveyor belt along the conveying direction of the conveyor belt.

[0020] Furthermore, the driving mechanism includes a fourth motor arranged in the driving rod and a threaded rod arranged on the output shaft of the fourth motor, a partition is provided in the driving rod, the fourth motor is fixed on the partition, the partition is located on the opposite side of the fourth motor and is fixed with a sleeve, the threaded rod passes through the sleeve, a nut is provided on the threaded rod, and a cross support rod is provided between the threaded rod and the support plate, and the cross position of the cross support rod is rotatably connected by a rotating shaft, wherein the lower end of one support rod is rotatably connected to the nut, and the upper end is rotatably connected to the support plate, and the lower end of the other support rod is rotatably connected to the sleeve, and the upper end is rotatably connected to the support plate.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention includes a conveying mechanism for conveying round tubes, a deburring mechanism arranged on the front side of the conveying mechanism for deburring the ends of the round tubes, and a feeding mechanism arranged in front of the conveying mechanism for conveying the front end of the round tube to the deburring mechanism; when deburring the ends of the round tubes, the conveying mechanism intermittently conveys the round tubes forward, and at the same time, the feeding mechanism pushes the front end of the round tube to the right until the ends of the round tubes reach the deburring mechanism, and the deburring mechanism arranges and deburrs the ends of the round tubes, so as to facilitate the erection of the scaffolding next time.

[0023] 2. The expansion mechanism of the present invention includes expansion plates spaced apart from each other within a drive rod, and a drive mechanism disposed within the drive rod for synchronously expanding the expansion plates. The drive rod is an annular sleeve structure having openings spaced apart therein, with the expansion plates positioned within the openings. The drive mechanism drives the expansion plates to expand or retract synchronously, and the expansion plates, driven by the expansion rod, synchronously expand or retract, thereby restoring the deformed end of the circular tube.

[0024] 3. In the present invention, a first driving rod is provided at the front end of the first slider, a first rocker arm is provided at the middle position of the front end of the first bracket, a first elongated hole is provided at the upper end of the first rocker arm, which cooperates with the first driving rod, a second elongated hole is provided at the lower end of the first rocker arm, a first motor is provided at the lower end of the first bracket, a turntable is provided on the output shaft of the first motor, and a second driving rod is provided at an eccentric position of the turntable, which cooperates with the second elongated hole. The first motor drives the turntable to rotate, and under the action of the second driving rod and the second elongated hole, the first rocker arm continuously swings left and right, and under the action of the first driving rod and the first elongated hole, the first slider moves left and right. The left and right movement of the first slider is achieved by a mechanical structure. Compared with the method in which the driving mechanism directly drives the first slider to move left and right, the movement distance of the first slider is stable and the accuracy is high.

[0025] 4. The present invention provides a guide groove at the right end of the lifting plate. The guide groove includes horizontal parts at both ends and an arc part arranged between the two horizontal parts. The height of the horizontal part at the left end is higher than that of the horizontal part at the right end. The right end of the first bracket is provided with a third drive rod that cooperates with the guide groove. When the first slider moves to the right, under the action of the guide groove and the third drive rod, the lifting plate moves downward, and the pressure head moves downward accordingly, pressing the circular tube, and the circular tube moves to the right accordingly. After the processing of the circular tube end is completed; when the first slider moves to the left, the circular tube moves to the left. Under the action of the guide groove and the third drive rod, the lifting plate moves upward, and the pressure head moves upward accordingly, releasing the circular tube, and the pressure head resets, facilitating the deburring processing of the next circular tube end. The rightward movement of the first slider and the downward movement of the lifting plate are linked by a mechanical structure, and no separate drive mechanism is required to drive the lifting plate up and down, which is low in cost.

[0026] 5. The present invention provides a second crossbar at the right end of the second slider, a fourth drive rod at the lower end of the second crossbar, a second swing rod within the second bracket, the middle position of the second swing rod being rotatably connected to the second bracket, the upper end of the second swing rod cooperating with the second slider, a tension spring being provided at the rear end of the second slider and the rear end of the second bracket, and the lower end of the second swing rod being provided with an arcuate surface cooperating with the fourth drive rod, the arcuate surface being curved forward from left to right. When the second slider moves to the right, the fourth drive rod also moves to the right. The fourth drive rod cooperates with the arcuate surface to drive the second swing rod to swing. The upper end of the second swing rod overcomes the elastic force of the tension spring and swings forward. The second swing rod drives the second slider forward, thus achieving mechanical linkage between the rightward movement of the first slider and the forward movement of the second slider, with low cost and good reliability. After the end of the round tube is polished, the first slider moves to the left, the fourth drive rod separates from the arcuate surface, and under the action of the tension spring, the second slider moves backward, facilitating deburring of the next end of the round tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 Schematic diagram of the structure of the present invention Figure 1 ;

[0029] Figure 2 It is a schematic diagram of the structure of the present invention;

[0030] Figure 3 It is a left side view of the present invention;

[0031] Figure 4 It is a right side view of the present invention;

[0032] Figure 5 It is a bottom view of the present invention;

[0033] Figure 6 This is a schematic diagram of the support structure of the present invention;

[0034] Figure 7 This is a cross-sectional view of the support mechanism of the present invention.

[0035] In the figure: first bracket 1, first slider 2, lifting plate 3, first cross bar 4, pressure head 5, second bracket 6, driving rod 7, second slider 8, first driving rod 9, first rocker arm 10, first elongated hole 11, second elongated hole 12, first motor 13, turntable 14, second driving rod 15, guide groove 16, guide groove 16, third driving rod 17, guide rod 18, baffle 19, compression spring 20, roller 21, second motor 22, third motor 23, grinding disc 24, grinding groove 25, second cross bar 26, fourth driving rod 27, second rocker arm 28, tension spring 29, arc surface 30, opening 31, fifth driving rod 32, conveyor belt 33, support groove 34, support plate 35, fourth motor 36, threaded rod 37, partition 38, sleeve 39, nut 40, support rod 41. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0037] like Figure 1 As shown, a round tube end shaping device for use on a construction site comprises a conveying mechanism for conveying round tubes, a deburring mechanism arranged on the front end side of the conveying mechanism for deburring the round tube ends, and a feeding mechanism arranged in front of the conveying mechanism for conveying the front end of the round tube to the deburring mechanism; when deburring the round tube ends, the conveying mechanism intermittently conveys the round tube forward, and at the same time, the feeding mechanism pushes the front end of the round tube to the right until the round tube end reaches the deburring mechanism, and the deburring mechanism arranges and deburrs the round tube ends, so as to facilitate the erection of the scaffolding next time.

[0038] like Figure 1As shown, the feeding mechanism includes a first bracket 1 arranged in front of the conveying mechanism, a first slider 2 arranged on the first bracket 1 and moving left and right on the first bracket 1, a lifting plate 3 arranged on the rear side of the first slider 2 and lifted and lowered on the first slider 2, the first slider 2 and the first bracket 1 are slidably connected by a guide rail slider pair, and the lowering plate 3 and the first slider 2 are slidably connected by a guide rail slider pair, and the lifting and lowering of the lifting plate 3 is linked to the left and right sliding of the first slider 2, and a first cross bar 4 is provided at the rear end of the lifting plate 3, and a pressure head 5 cooperating with the round tube is provided at the rear end of the first cross bar 4, and a buffer mechanism is provided between the pressure head 5 and the first cross bar 4; when the first slider 2 moves to the right, the lifting plate 3 moves down, the pressure head 5 presses the round tube, and the first slider 2 continues to move to the right, pushing the front end round tube to the right, and the right end of the round tube cooperates with the deburring mechanism to realize the deburring processing of the round tube end.

[0039] like Figure 2 As shown, the deburring mechanism includes a second bracket 6 disposed on the side of the conveying mechanism, a drive rod 7 disposed on the second bracket 6 that engages with the inner wall of the circular tube and drives the circular tube to rotate, and a second slider 8 disposed on the second bracket 6 and moving back and forth on the second bracket 6. The second slider 8 is slidably connected to the second bracket 6 via a guide slider pair. The second slider 8 is equipped with a polishing mechanism for polishing the end of the circular tube. The movement of the second slider 8 is linked to the movement of the first slider 2. As the first slider 2 moves to the right, the right end of the circular tube is sheathed on the drive rod 7. At the same time, the second slider 8 moves forward, and the polishing mechanism polishes the end of the circular tube. The drive rod 7 is equipped with a support mechanism for restoring the shape of the circular tube end.

[0040] like Figure 6 and Figure 7 As shown, the expansion mechanism includes support plates 35 spaced apart within a drive rod 7 and a drive mechanism disposed within the drive rod 7 for driving the support plates 35 to expand synchronously. The drive rod 7 is an annular sleeve structure with openings spaced apart therein, and the support plates 35 are positioned within the openings. In this embodiment, four support plates 35 are provided, and the number of support plates 35 can be adjusted as needed and is not specifically defined herein. The drive mechanism drives the support plates 35 to expand or retract synchronously. Under the action of the support rod 41, the support plates 35 are driven to expand or retract synchronously, thereby restoring the deformed end of the circular tube.

[0041] like Figure 1As shown, the front end of the first slider 2 is provided with a first drive rod 9, and the front end of the first bracket 1 is provided with a first swing arm 10 rotatably connected to the first bracket 1 at a middle position. The upper end of the first swing arm 10 is provided with a first elongated hole 11 that mates with the first drive rod 9, and the lower end of the first swing arm 10 is provided with a second elongated hole 12. The lower end of the first bracket 1 is provided with a first motor 13. The output shaft of the first motor 13 is provided with a turntable 14. The turntable 14 is provided with a second drive rod 15 at an eccentric position that mates with the second elongated hole 12. The first motor 13 drives the turntable 14 to rotate. Under the action of the second drive rod 15 and the second elongated hole 12, the first swing arm 10 continuously swings left and right. Under the action of the first drive rod 9 and the first elongated hole 11, the first slider 2 moves left and right. The left and right movement of the first slider 2 is achieved by a mechanical structure. Compared with a method where the first slider 2 is directly driven by a drive mechanism, the movement distance of the first slider 2 is more stable and accurate.

[0042] like Figure 2 As shown, the right end of the lifting plate 3 is provided with a guide slot 16. The guide slot 16 includes two horizontal portions at both ends and an arc portion disposed between the two portions. The left horizontal portion is higher than the right horizontal portion. The right end of the first bracket 1 is provided with a third drive rod 17 that cooperates with the guide slot 16. The third drive rod 17 is fixed to the first bracket 1 via a column. When the first slider 2 moves rightward, the guide slot 16 and the third drive rod 17 cause the lifting plate 3 to move downward, and the pressure head 5 moves downward accordingly, pressing the circular tube, which then moves rightward, completing the processing of the circular tube end. When the first slider 2 moves leftward, the circular tube moves leftward. The guide slot 16 and the third drive rod 17 cause the lifting plate 3 to move upward, and the pressure head 5 moves upward accordingly, releasing the circular tube and returning to its original position, facilitating deburring of the next circular tube end. This achieves a mechanical linkage between the rightward movement of the first slider 2 and the downward movement of the lifting plate 3, eliminating the need for a separate drive mechanism to drive the lifting plate upward and downward, resulting in low cost.

[0043] like Figure 3 and Figure 4 As shown, the buffer mechanism includes a guide rod 18 arranged at the upper end of the pressure head 5, the upper end of the guide rod 18 passes through the first cross bar 4 and is slidably connected to the first cross bar 4, two guide rods 18 are symmetrically provided, and a baffle 19 is provided at the upper end of the guide rod 18 to prevent the guide rod 18 from falling from the first cross bar 4. A compression spring 20 is provided on the guide rod 18, the lower end of the compression spring 20 contacts the pressure head 5, and the upper end of the compression spring 20 contacts the first cross bar 4. The compression spring 20 plays a buffering role, and the hard contact between the pressure head 5 and the round tube is changed to soft contact to prevent damage to the equipment; the bottom of the pressure head 5 is an arc, and a roller 21 is provided at the arc. The roller 21 can reduce the friction between the low round tube and the pressure head 5 when it rotates to prevent self-locking.

[0044] like Figure 2 As shown, the second bracket 6 is provided with a second motor 22 for driving the driving rod 7 to rotate. The driving rod 7 is provided with a step for positioning the end of the round tube. The end of the round tube contacts the step to position the round tube. The round tube is sleeved on the driving rod 7. The second motor 22 drives the driving rod 7 to rotate, and the driving rod 7 drives the round tube to rotate.

[0045] like Figure 2 As shown, the grinding mechanism includes a third motor 23 fixed to the upper end of the second slider 8 and a grinding disc 24 arranged on the output shaft of the third motor 23. An arc-shaped grinding groove 25 that cooperates with the right end of the outer cylindrical surface of the circular tube is provided at the outer arc of the left side of the grinding disc 24. The third motor 23 drives the grinding disc 24 to rotate. When the second slider 8 moves forward, the grinding disc 24 on the output shaft of the third motor 23 deburrs the right end of the outer cylindrical surface of the circular tube. The grinding groove 25 is set to an arc shape to ensure that the burrs are completely ground.

[0046] like Figure 1 and Figure 5 As shown, the second slider 8 is provided with a second crossbar 26 at its right end, a fourth drive rod 27 at its lower end, and a second swing rod 28 within the second bracket 6. The middle portion of the second swing rod 28 is rotatably connected to the second bracket 6. The upper end of the second swing rod 28 engages with the second slider 8. A tension spring 29 is provided at the rear end of the second slider 8 and the rear end of the second bracket 6. The lower end of the second swing rod 28 is provided with an arcuate surface 30 that engages with the fourth drive rod 27. The arcuate surface 30 curves forward from left to right. When the second slider 8 moves rightward, the fourth drive rod 27 also moves rightward. The fourth drive rod 27 engages with the arcuate surface 30, driving the second swing rod 28 to swing. The upper end of the second swing rod 28 swings forward against the elastic force of the tension spring 29, and the second swing rod 28 drives the second slider 8 forward. This achieves a mechanical linkage between the rightward movement of the first slider 2 and the forward movement of the second slider 8, achieving low cost and high reliability. After the end of the round tube is polished, the first slider 2 moves left, the fourth driving rod 27 is separated from the arc surface 30, and under the action of the tension spring 29, the second slider 8 moves backward to facilitate deburring the next end of the round tube.

[0047] like Figure 2 As shown, the upper end of the second bracket 6 is provided with an opening 31 to facilitate the passage of the second swing rod 28;

[0048] A fifth driving rod 32 is provided on the left side of the second sliding block 8 , and the fifth driving rod 32 contacts the upper end of the front side surface of the second swing rod 28 .

[0049] like Figure 3 and Figure 4As shown, the conveying mechanism includes a conveyor belt 33 and a number of support grooves 34 for supporting round tubes that are evenly arranged on the conveyor belt 33 along the conveying direction of the conveyor belt 33. Drive rollers are provided at both ends of the conveyor belt 33. Both ends of the drive roller shaft are supported on the bracket and rotate on the bracket. The conveyor belt 33 is driven by a motor belt, which is not shown in the figure. This is something that a person skilled in the art can easily think of and will not be elaborated on here. After the grinding of the round tube end is completed, the conveyor belt continues to operate, and the round tube after grinding falls to the ground between the first bracket and the conveyor belt bracket for easy collection.

[0050] like Figure 7 As shown, the driving mechanism includes a fourth motor 36 arranged in the driving rod 7 and a threaded rod 37 arranged on the output shaft of the fourth motor 36. A partition 38 is provided in the driving rod 7, and the fourth motor 36 is fixed on the partition 38. The partition 38 is located on the opposite side of the fourth motor 36 and is fixed with a sleeve 39. The threaded rod 37 passes through the sleeve 39. A nut 40 is provided on the threaded rod 37, and the nut 40 is threadedly connected to the threaded rod 37. A cross strut 41 is provided between the threaded rod 37 and the support plate 35. The cross position of the cross strut 41 is rotatably connected by a rotating shaft, wherein the lower end of one strut 41 is rotatably connected to the nut 40, and the upper end is rotatably connected to the support plate 35. The lower end of the other strut 41 is rotatably connected to the sleeve 39, and the upper end is rotatably connected to the support plate 35. A set of crossed support rods 41 correspond one to one with the support plates 35. The fourth motor 36 drives the threaded rod 37 to rotate and the nut 40 to move. Under the action of the support rods 41, the support plates 35 are driven to open or retract synchronously, thereby restoring the deformed end of the round tube.

[0051] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0052] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A round tube end shaping device for use on construction sites, characterized in that: It includes a conveying mechanism for conveying round tubes, a deburring mechanism arranged on the front side of the conveying mechanism for deburring the end of the round tube, and a feeding mechanism arranged in front of the conveying mechanism for conveying the front end of the round tube to the deburring mechanism; The feeding mechanism comprises a first bracket (1) arranged in front of the conveying mechanism, a first slider (2) arranged on the first bracket (1) and movable left and right on the first bracket (1), and a lifting plate (3) arranged on the rear side of the first slider (2) and lifting and lowering on the first slider (2), the lifting and lowering of the lifting plate (3) being linked to the left and right sliding of the first slider (2), a first cross bar (4) being provided at the rear end of the lifting plate (3), a pressure head (5) cooperating with the round tube being provided at the rear end of the first cross bar (4), and a buffer mechanism being provided between the pressure head (5) and the first cross bar (4); A first driving rod (9) is provided at the front end of the first slider (2); a first swing rod (10) is provided at the front end of the first bracket (1) and is rotatably connected to the first bracket (1) at an intermediate position; a first elongated hole (11) is provided at the upper end of the first swing rod (10) and is matched with the first driving rod (9); a second elongated hole (12) is provided at the lower end of the first swing rod (10); a first motor (13) is provided at the lower end of the first bracket (1); a turntable (14) is provided on the output shaft of the first motor (13); and a second driving rod (15) is provided at an eccentric position of the turntable (14) and is matched with the second elongated hole (12); A guide groove (16) is provided at the right end of the lifting plate (3), and the guide groove (16) includes horizontal portions at both ends and an arc portion arranged between the two horizontal portions, and the height of the horizontal portion at the left end is higher than that of the horizontal portion at the right end. A third driving rod (17) is provided at the right end of the first bracket (1) and is matched with the guide groove (16); The buffer mechanism comprises a guide rod (18) arranged at the upper end of the pressure head (5), the upper end of the guide rod (18) passes through the first cross bar (4) and is slidably connected to the first cross bar (4), a baffle (19) is provided at the upper end of the guide rod (18), and a compression spring (20) is provided on the guide rod (18); the bottom of the pressure head (5) is an arc, and a roller (21) is provided at the arc; The deburring mechanism comprises a second bracket (6) arranged on the side of the conveying mechanism, a driving rod (7) arranged on the second bracket (6) and cooperating with the inner wall of the round tube and driving the round tube to rotate, and a second slider (8) arranged on the second bracket (6) and moving back and forth on the second bracket (6), wherein the second slider (8) is provided with a grinding mechanism for grinding the end of the round tube, the movement of the second slider (8) is linked to the movement of the first slider (2), and the driving rod (7) is provided with a spreading mechanism for restoring the shape of the end of the round tube; The right end of the second slider (8) is provided with a second crossbar (26), the lower end of the second crossbar (26) is provided with a fourth driving rod (27), a second swing rod (28) is provided in the second bracket (6), the middle position of the second swing rod (28) is rotatably connected to the second bracket (6), the upper end of the second swing rod (28) is matched with the second slider (8), the rear end of the second slider (8) and the rear end of the second bracket (6) are provided with a tension spring (29), and the lower end of the second swing rod (28) is provided with an arc surface (30) matched with the fourth driving rod (27), and the arc surface (30) is bent forward from left to right; An opening (31) is provided at the upper end of the second bracket (6); a fifth driving rod (32) is provided on the left side of the second slider (8), and the fifth driving rod (32) contacts the upper end of the front side surface of the second swing rod (28); The spreading mechanism comprises a spreading plate (35) spaced apart in the driving rod (7) and a driving mechanism arranged in the driving rod (7) for driving the spreading plate (35) to spread synchronously.

2. A round pipe end shaping device for use on a construction site as claimed in claim 1, characterized in that: The second bracket (6) is provided with a second motor (22) for driving the driving rod (7) to rotate, and the driving rod (7) is provided with a step for positioning the end of the circular tube.

3. A round pipe end shaping device for use on a construction site as claimed in claim 1, characterized in that: The grinding mechanism comprises a third motor (23) fixed to the upper end of the second slider (8) and a grinding disc (24) arranged on the output shaft of the third motor (23); an arc-shaped grinding groove (25) is provided on the outer arc of the left side of the grinding disc (24) and is matched with the right end of the outer cylindrical surface of the circular tube; the third motor (23) drives the grinding disc (24) to rotate.

4. A round pipe end shaping device for use on a construction site as claimed in claim 1, characterized in that: The conveying mechanism comprises a conveying belt (33) and a plurality of supporting grooves (34) for supporting the round tubes and uniformly arranged on the conveying belt (33) along the conveying direction of the conveying belt (33).

5. A round pipe end shaping device for use on a construction site as claimed in claim 1, characterized in that: The driving mechanism comprises a fourth motor (36) arranged in the driving rod (7) and a threaded rod (37) arranged on the output shaft of the fourth motor (36); a partition (38) is provided in the driving rod (7); the fourth motor (36) is fixed on the partition (38); a sleeve (39) is fixed on the partition (38) on the side opposite to the fourth motor (36); the threaded rod (37) passes through the sleeve (39); a nut (40) is provided on the threaded rod (37); a cross support rod (41) is provided between the threaded rod (37) and the support plate (35); the cross position of the cross support rod (41) is rotatably connected through a rotating shaft, wherein the lower end of one support rod (41) is rotatably connected to the nut (40), and the upper end is rotatably connected to the support plate (35); the lower end of the other support rod (41) is rotatably connected to the sleeve (39), and the upper end is rotatably connected to the support plate (35).

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