Automatic pipe making machine

Abstract

The invention relates to the field of pipe making machines, in particular to an automatic pipe making machine which comprises an operation table, an arc-shaped supporting plate used for supporting a pipe is arranged on the upper surface of the operation table, an expanding and supporting assembly is arranged at one end of the supporting plate, pressing assemblies are arranged at the upper position and the lower position of the other end of the supporting plate correspondingly, and a shaping assembly is arranged at the other end of the supporting plate. The shaping assembly comprises a shaping rod, one end of the shaping rod is provided with a flat part, the flat part and the shaping rod are arranged in a smooth transition mode, and the shaping rod can push the flat part into the pipe; according to the design of the automatic pipe making machine, firstly, in the aspect of pressing forming quality, a pipe is extruded by the pressing plate outside, the pipe is supported by the flat part and the insertion body inside, the pipe can be stabilized to be in a preset shape, the inner edge area and the outer edge area of a pressed flat opening are smooth and regular, the pressing quality is improved, and then in the aspect of efficiency, the production efficiency is improved. And the expanding and supporting assembly, the pressing assembly and the shaping assembly are coordinated and matched with one another and sequentially executed according to the set sequence, and the punching and shaping efficiency of the pipe can be improved.

Description

Technical Field

[0001] The invention relates to the field of pipe making machines, in particular to an automatic pipe making machine. Background Art

[0002] Pipe making machine is a kind of mechanical equipment used to produce various pipes. It is widely used in oil and gas transportation, building water supply, machinery manufacturing and other industries. With the acceleration of industrialization and the increase in demand for high-quality pipes, the technology of pipe making machines continues to improve and the degree of automation continues to increase. By adopting advanced CNC technology and robotics technology, production efficiency and product quality have been improved.

[0003] The current pipe making machines, combined with CNC technology, can realize automatic processing. However, they are still unable to cope with the processing of some special shapes. For example, the end of the pipe is pressed into a flat shape. After the flat mouth is pressed and formed, the inside of the flat mouth is irregular and requires subsequent secondary trimming, which will inevitably affect the overall processing efficiency of the pipe. If there are large-volume orders, it will be difficult to cope with it, and secondary trimming will also increase costs.

[0004] Therefore, an automatic pipe making machine is proposed to solve the above problems. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the automatic pipe making machine of the present invention comprises an operating table, the upper surface of the operating table is provided with an arc-shaped support plate for supporting the pipe material, one end of the support plate is provided with an expansion component, the other end of the support plate is provided with a pressing component at the upper and lower positions, and the other end of the support plate is provided with a shaping component; The shaping assembly comprises a shaping rod, one end of which is provided with a flat portion, the flat portion and the shaping rod are smoothly transitioned, and the shaping rod can push the flat portion into the pipe; Each of the pressing components comprises a pressing plate adapted to the flat portion, and the upper and lower pressing plates can press the inner surface of the tube body to adhere to the surface of the flat portion; The expansion component comprises two symmetrically arranged plug-in bodies, which can extend into the pipe and are symmetrically arranged on both sides of the flat part.

[0007] Preferably, guide grooves are provided on both sides of the flat portion, and the guide grooves are arranged along the moving direction of the flat portion; The inner side wall of each plug-in body is provided with a guide portion adapted to the guide groove. The plug-in body is plugged into the pipe body, and the guide portion slides into the guide groove.

[0008] Preferably, the end surfaces of the two pressing plates are provided with plug holes; the two plug-in bodies are fixedly connected together by a No. 1 plate, and the side wall of the No. 1 plate is provided with a pin adapted to the plug hole.

[0009] Preferably, an oil circuit is provided inside each of the plug-in bodies, an oil inlet port of the oil circuit is arranged on the back of the first plate, and an oil inlet pipe is connected to the oil inlet port of the oil circuit; The oil outlet port of the oil circuit is connected to a plurality of micropores, and the oil outlet port of each micropore is arranged on the outer surface of the plug-in body; The oil circuit is also provided with a control component for controlling the oil circulation. The control component is arranged close to the front end of the plug-in body and is executed in cooperation with the flat part.

[0010] Preferably, a support frame is provided at the other end of the support plate, the support frame is fixedly connected to the operating table, and a cross bar is provided on the support frame; The axis of the shaping rod is provided with a sliding hole adapted to the cross rod, and the sliding hole penetrates the shaping rod radially downward.

[0011] Preferably, a loading assembly is provided on one side of the operating table, and the loading assembly includes a conveyor belt, on which a plurality of pipes to be loaded and processed are placed; A guide plate is obliquely arranged on one side of the support plate, one edge of the guide plate is fixedly connected to the support plate, and the other edge of the guide plate extends to the end position of the conveyor belt.

[0012] Preferably, the outer surface of the conveyor belt is provided with multiple groups of partitions, and the pipes to be processed are placed between adjacent groups of partitions; The guide plate is provided with a clearance opening, and the partition plate on the upper surface of the conveyor belt passes through the clearance opening and rotates to a position below the conveyor belt.

[0013] Preferably, a limiting plate is provided at the other end of the shaping rod, and the sliding hole radially penetrates the limiting plate.

[0014] Preferably, an arc-shaped guide hole is opened inside the operating table, one end of the guide hole passes through the upper surface of the support plate, and the other end of the guide hole passes through the side outside the operating table, and a push rod is slidably connected in the guide hole, and a rack is provided on the push rod, and a gear is meshed on one side of the rack, and the gear is used to rub the push rod to slide in the guide hole.

[0015] Preferably, a recess is provided on the upper surface of the support plate, a top plate is provided in the recess, and a lower surface of the top plate is fixedly connected to the upper end of the top rod.

[0016] The present invention is beneficial in that: 1. In the present invention, the design of the automatic pipe making machine, first of all, in terms of the pressing and forming quality, the pipe is squeezed by the pressing plate on the outside, and the pipe is supported by the flat part and the plug-in body on the inside, so that the pipe can be pressed into a preset shape, and the inner and outer edge areas of the pressed flat mouth are smooth and regular, thereby improving the pressing quality. Then, in terms of efficiency, the expansion component, the pressing component and the shaping component are coordinated with each other and executed in sequence according to the setting order, which helps to improve the stamping and shaping efficiency of the pipe.

[0017] 2. In the present invention, the second hydraulic rod and the third hydraulic rod are executed multiple times, so that the plug-in body can squeeze the two sides of the flat mouth, expand the flat mouth, and perform the final extrusion and trimming on the flat mouth, thereby improving the processing quality of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A first-view stereoscopic view of the automatic pipe making machine of the present invention; Figure 2 A second perspective stereogram of the automatic pipe making machine of the present invention; Figure 3 A third perspective perspective view of the automatic pipe making machine of the present invention; Figure 4 It is a front view of the automatic pipe making machine of the present invention; Figure 5 is a three-dimensional diagram of the processed pipe in the present invention; Figure 6 is a three-dimensional diagram of the pressing assembly in the present invention; Figure 7 It is a three-dimensional diagram of the coordination of the shaping component and the expansion component in the present invention; Figure 8 A first perspective stereogram of the shaping component of the present invention; Fig. 9 A second perspective stereogram of the shaping component of the present invention; Fig.10 It is a top view of the cooperation between the shaping component and the expansion component in the present invention; Fig.11 is a cross-sectional view of the plug-in body of the present invention; Fig.12 is a three-dimensional diagram of the expansion and support assembly of the present invention; Fig.13 is a cross-sectional view of the control assembly of the present invention; Fig.14 It is a three-dimensional diagram of the cooperation between the operating table and the crossbar in the present invention; Fig.15 A three-dimensional diagram of the operating table of the present invention; Fig.16 is a cross-sectional view of the operating table of the present invention; Fig.17 It is a structural schematic diagram of the blanking component in the present invention.

[0019] In the figure: 1, operating table; 2, supporting plate; 3, pipe; 4, shaping rod; 5, flat part; 6, pressing plate; 7, plug-in body; 8, hydraulic rod No. 1; 9, fixing plate; 10, hydraulic rod No. 2; 11, hydraulic rod No. 3; 12, flat mouth; 13, guide groove; 14, plug hole; 15, plate No. 1; 16, latch; 17, oil circuit; 18, oil inlet pipe; 19, micro hole; 20, sliding pin; 21, spring; 22, telescopic slot; 23, through hole; 24, supporting frame; 25, cross bar; 26, sliding hole; 27, conveyor belt; 28, guide plate; 29, partition; 30, clearance mouth; 31, limit plate; 32, guide hole; 33, push rod; 34, rack; 35, gear; 36, rotating shaft; 37, recess; 38, top plate; 39, guide part. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] Reference Figure 1 - Fig.14 An automatic pipe making machine comprises an operating table 1, an arc-shaped support plate 2 for supporting a pipe material 3 is provided on the upper surface of the operating table 1, an expansion component is provided at one end of the support plate 2, a pressing component is provided at the upper and lower positions of the other end of the support plate 2, and a shaping component is provided at the other end of the support plate 2; The shaping assembly includes a shaping rod 4, one end of which is provided with a flat portion 5, the flat portion 5 and the shaping rod 4 are smoothly transitioned, and the shaping rod 4 can push the flat portion 5 into the pipe 3; Each of the pressing components comprises a pressing plate 6 adapted to the flat portion 5, and the upper and lower pressing plates 6 can press the inner surface of the tube body to adhere to the surface of the flat portion 5; The expansion component includes two symmetrically arranged plug-in bodies 7, which can extend into the pipe 3 and are symmetrically arranged on both sides of the flat portion 5; In this embodiment, a No. 1 hydraulic rod 8 is provided on both sides of the operating table 1, and an output end of the No. 1 hydraulic rod 8 is fixedly connected to a fixing plate 9 in the shape of an "eight", and the fixing plate 9 is fixedly connected to the other end of the shaping rod 4, and can drive the shaping rod 4 to move along the length direction of the operating table 1; The upper and lower pressing plates 6 are each fixedly connected with a second hydraulic rod 10, which can drive the pressing plate 6 to tilt and squeeze the end of the pipe 3, pressing the pipe 3 into a shape as shown in FIG. Figure 5 The shape shown; A third hydraulic rod 11 is fixedly connected to the plug-in body 7, and the third hydraulic rod 11 can drive the plug-in body 7 to move along the length direction of the operating table 1; The specific working process of the automatic pipe making machine is as follows: first, the material is loaded, the pipe 3 is placed flat on the support plate 2, and then the No. 1 hydraulic rod 8 is driven, and the No. 1 hydraulic rod 8 drives the shaping rod 4 to enter from one end of the pipe 3 until the end of the flat part 5 is flush with the other end of the pipe 3, and then the No. 2 hydraulic rod 10 is driven, and the No. 2 hydraulic rod 10 presses on the other end of the pipe 3 to press it flat, and the plug-in body 7 is inserted into the pipe 3 during the pressing process; The third hydraulic rod 11 is driven, and the third hydraulic rod 11 drives the plug-in body 7 to be inserted into the pipe 3 and placed on both sides of the flat portion 5. The plug-in body 7 expands the two sides of the flat opening 12, and the two pressing plates 6 are finally matched as shown. Figure 6 The state shown ensures that after the pipe 3 is pressed into a flat mouth 12, the outer edge and the inner edge of the flat mouth 12 are both in a regular and smooth state; After the pressing is completed, firstly, the No. 3 hydraulic rod 11 is driven to drive the plug-in body 7 to retreat and reset, then the No. 2 hydraulic rod 10 is driven to drive the pressing plate 6 to retreat away from the pipe 3 to reset, and then the No. 1 hydraulic rod 8 is driven, and the No. 1 hydraulic rod 8 drives the shaping rod 4 away from the pipe 3 through the fixing plate 9, and finally the flat part 5 is separated from one end of the pipe 3, and finally the processed pipe 3 is removed; The design of this automatic pipe making machine, first of all, in terms of the pressing and forming quality, the pipe 3 is squeezed by the pressing plate 6 on the outside, and the pipe is supported by the flat portion 5 and the plug-in body 7 on the inside, so that the pipe 3 can be pressed into a preset shape, and the inner and outer edge areas of the pressed flat mouth 12 are smooth and regular, thereby improving the pressing quality. Then, in terms of efficiency, the expansion component, the pressing component and the shaping component are coordinated with each other and executed in sequence according to the setting order, which helps to improve the stamping and shaping efficiency of the pipe 3.

[0022] Reference Figure 1 - Fig.14 , guide grooves 13 are provided on both sides of the flat portion 5, and the guide grooves 13 are arranged along the moving direction of the flat portion 5; The inner side wall of each of the plug-in bodies 7 is provided with a guide portion 39 adapted to the guide groove 13. The plug-in body 7 is plugged into the pipe 3, and the guide portion 39 slides into the guide groove 13; the No. 2 hydraulic rod 10 drives the pressing plate 6 to squeeze the pipe 3 in two strokes. The first stroke is half of the moving stroke of the output end of the No. 2 hydraulic rod 10. The pressing plate 6 squeezes and deforms the pipe 3, and then drives the No. 3 hydraulic rod 11 to insert the plug-in body 7 into one end of the pipe 3. At this time, the guide portion 39 on the plug-in body 7 slides along the guide groove 13, and the moving path of the plug-in body 7 is further constrained, so that the outer surface of the plug-in body 7 can be evenly squeezed on one end of the pipe 3. In the port; when the No. 3 hydraulic rod 11 drives the plug-in body 7 to move a stroke of two-thirds of its total moving stroke, the No. 2 hydraulic rod 10 is then driven to perform the second stroke, which is half of the moving stroke of the output end of the No. 2 hydraulic rod 10, and one end of the pipe 3 is completely squeezed on the flat portion 5 and the plug-in body 7, and then the No. 3 hydraulic rod 11 is driven to drive the plug-in body 7 to move, completing the final movement of the plug-in body 7. At this time, the outer surface of the plug-in body 7 will squeeze the inner surface of the flat mouth 12, expand the flat mouth 12, and perform the final extrusion trimming on the flat mouth 12. At this time, one end of the pipe 3 is extruded and formed, and finally the pressing assembly, the expansion assembly and the shaping assembly are withdrawn and reset in sequence.

[0023] Reference Figure 1 - Fig.14 The end surfaces of the two pressing plates 6 are provided with plug holes 14; the two plug-in bodies 7 are fixedly connected together by a No. 1 plate 15, and the side wall of the No. 1 plate 15 is provided with a plug pin 16 adapted to the plug hole 14; In the present embodiment, the front end of the designed latch 16 is reduced in diameter, and the shapes of the socket 14 and the latch 16 are adapted to each other; when the No. 3 hydraulic rod 11 drives the plug-in body 7 to make the final movement, the plug-in body 7 is completely inserted into the pipe 3, and at the same time, the No. 1 plate 15 is pressed against the end face of the flat mouth 12, and the latch 16 is inserted into the socket 14. The latch 16 constrains the two pressing plates 6, assisting the pressing plates 6 in the extrusion effect on the pipe 3, so that the two pressing plates 6 can be stably extruded on the pipe 3, thereby improving the regularity of the shape of the pipe 3 after stamping.

[0024] Reference Figure 1 - Fig.14 Each of the plug-in bodies 7 has an oil circuit 17 formed inside, an oil inlet port of the oil circuit 17 is disposed on the back of the first plate 15, and an oil inlet pipe 18 is connected to the oil inlet port of the oil circuit 17; The oil outlet port of the oil circuit 17 is connected to a plurality of micropores 19, and the oil outlet port of each micropore 19 is arranged on the outer surface of the plug-in body 7; The oil circuit 17 is also provided with a control component for controlling the oil circulation, the control component is arranged near the front end of the plug-in body 7, and the control component cooperates with the flat portion 5 to execute; Among the flat portion 5, the pressing plate 6 and the plug-in body 7, only the plug-in body 7 will be squeezed and slid relative to the pipe 3, and in order to reduce the wear of the pipe 3 on the plug-in body 7, an oil supply and lubrication oil circuit 17 is provided, and the lubricating oil is injected into the oil circuit 17 by an external oil pump, and the flow of the oil circuit 17 is controlled by the control component, and the lubricating oil is discharged from the micropores 19, and the lubricating oil is spread on the surface of the plug-in body 7, so that a layer of oil film is formed between the plug-in body 7 and the pipe 3, thereby reducing the wear of the plug-in body 7 and extending its service life; The control component provided in this embodiment is used to control the intermittent discharge of lubricating oil to prevent the continuous discharge of lubricating oil, resulting in waste of lubricating oil and pollution of the working environment by lubricating oil. The control component includes a sliding pin 20, which is slidably connected to the telescopic groove 22 opened inside the guide part 39 through a spring 21. The sliding pin 20 cooperates with the guide groove 13. When the plug-in body 7 performs the first moving stroke, the guide part 39 slides into the guide groove 13, and the inner side wall of the guide groove 13 squeezes the sliding pin 20 to the bottom of the telescopic groove 22. At this time, the through hole 23 radially opened on the sliding pin 20 connects the oil path 17 and the micropore 19. The lubricating oil flows along the oil path 17 and is dispersed into each micropore 19, and finally discharged from the micropore 19. The lubricating oil is spread all over the plug-in surface. After the plug-in body 7 performs the last moving stroke, the plug-in body 7 is squeezed with the inner surface of the flat mouth 12. At this time, the lubricating oil plays a role in lubrication and wear reduction. When the plug-in body 7 is withdrawn from the flat opening 12 and reset, the sliding pin 20 loses the squeezing of the inner wall of the guide groove 13, and the sliding pin 20 is reset under the elastic force of the spring 21 connected thereto, and the through hole 23 is offset from the oil path 17 and the micropores 19, and the oil path 17 is blocked again, realizing the intermittent circulation of the lubricating oil.

[0025] Reference Figure 1 - Fig.14 A support frame 24 is provided at the other end of the support plate 2, the support frame 24 is fixedly connected to the operating table 1, and a cross bar 25 is provided on the support frame 24; The shaping rod 4 is axially provided with a sliding hole 26 adapted to the cross rod 25, and the sliding hole 26 radially penetrates the shaping rod 4 downward; When the shaping rod 4 is withdrawn from the pipe 3, the end of the cross bar 25 will extend along the sliding hole 26 to the inside of the shaping rod 4 to support the shaping rod 4, that is, the shaping rod 4 is mounted on the cross bar 25 to stabilize the shaping rod 4 to prevent the shaping rod 4 from tilting due to the support of the single fixing plate 9, causing the flat portion 5 to tilt downward. When the flat portion 5 extends into the pipe 3 again, the flat portion 5 presses against the end surface of the pipe 3.

[0026] Reference Figure 1 - Fig.14 A loading assembly is provided on one side of the operating table 1, and the loading assembly includes a conveyor belt 27, on which a plurality of pipes 3 to be loaded and processed are placed; A guide plate 28 is obliquely provided on one side of the support plate 2, one edge of the guide plate 28 is fixed to the support plate 2, and the other edge of the guide plate 28 extends to the end position of the conveyor belt 27; A plurality of pipes 3 to be processed are placed on the conveyor belt 27, and are conveyed to the guide plate 28 one by one, and slide into the support plate 2 along the guide plate 28, so as to realize automatic loading of the pipes 3, save the labor loading cost, reduce the proportion of labor participation, and improve safety.

[0027] Reference Figure 1 - Fig.15 The outer surface of the conveyor belt 27 is provided with a plurality of partitions 29, and the pipes 3 to be processed are placed between adjacent partitions 29; The guide plate 28 is provided with a clearance opening 30, and the partition plate 29 on the upper surface of the conveyor belt 27 passes through the clearance opening 30 and rotates to a position below the conveyor belt 27; Each section of the pipe 3 is placed between adjacent groups of partitions 29, and the pipes 3 are separated one by one to ensure the effectiveness of feeding. The conveyor belt 27 is driven by a servo motor, which intermittently drives the conveyor belt 27 to rotate, and intermittently puts the pipe 3 onto the guide plate 28 and falls into the support plate 2. The expansion component, the pressing component and the shaping component are coordinated to ensure the smooth processing of the pipe 3. The provided clearance opening 30 can enable the partition plate 29 to smoothly pass over the guide plate 28 , while ensuring that the pipe 3 falls smoothly into the guide plate 28 , thereby ensuring that the pipe 3 rolls smoothly into the support plate 2 .

[0028] Reference Figure 1 - Fig.10 The other end of the shaping rod 4 is provided with a limiting plate 31, and the sliding hole 26 radially penetrates the limiting plate 31; When the conveyor belt 27 is positioned, it is positioned close to one end of the pallet 2. When the pipe 3 rolls down into the pallet 2 along the guide plate 28, the pipe 3 is close to one end of the pallet 2. At this time, the No. 1 hydraulic rod 8 is driven, and the No. 1 hydraulic rod 8 drives the shaping rod 4 to insert into the pipe 3. At the same time, the limit plate 31 will also press against the end surface of the pipe 3 and push the pipe 3 to move toward the other end of the pallet 2. When the No. 1 hydraulic rod 8 is executed, the position of the pipe 3 is determined, and then the pressing component and the expansion component are executed; When the processing of the pipe 3 is completed, the No. 1 hydraulic rod 8 drives the shaping rod 4 to separate from the pipe 3. At this time, due to the stress inside the metal pipe 3, after the metal pipe 3 loses the squeezing of the pressing plate 6, a gap will remain between the flat mouth 12 and the flat part 5, and when the flat part 5 retreats and separates from the pipe 3, the flat part 5 can smoothly separate from the flat mouth 12.

[0029] Reference Fig.14 - Fig.17The operating table 1 has an arc-shaped guide hole 32 in its interior, one end of the guide hole 32 penetrates the upper surface of the support plate 2, and the other end of the guide hole 32 penetrates the outer side of the operating table 1, and a push rod 33 is slidably connected in the guide hole 32, and a rack 34 is provided on the push rod 33, and a gear 35 is meshed on one side of the rack 34, and the gear 35 is used to rub the push rod 33 to slide in the guide hole 32; The two gears 35 are fixedly connected together by a rotating shaft 36. The rotating shaft 36 is driven by an external motor and can drive the rotating shaft 36 to rotate forward and reverse. When the pipe 3 is processed, it needs to be unloaded. At this time, the rotating shaft 36 drives the two gears 35 to rotate synchronously. The gear 35 rubs the rack 34 and drives the push rod 33 to slide along the guide hole 32. The push rod 33 moves upward and pushes the pipe 3 in the support plate 2 away, realizing the unloading of the pipe 3, realizing automatic unloading, reducing manual participation, and improving safety.

[0030] Reference Fig.14 - Fig.17 The upper surface of the support plate 2 is provided with a recess 37, a top plate 38 is provided in the recess 37, and the lower surface of the top plate 38 is fixedly connected to the upper end of the top rod 33; The push rod 33 drives the top plate 38 to tilt and push the pipe 3 upward, so that the pipe 3 can be smoothly pushed away from the supporting plate 2, and the pushing direction is in the same direction, which is convenient for collecting the processed pipe 3.

[0031] Working principle: The specific working process of the automatic pipe making machine is as follows: first, the material is loaded, the pipe 3 is placed flat on the support plate 2, and then the No. 1 hydraulic rod 8 is driven, and the No. 1 hydraulic rod 8 drives the shaping rod 4 to enter from one end of the pipe 3 until the end of the flat part 5 is flush with the other end of the pipe 3, and then the No. 2 hydraulic rod 10 is driven; The second hydraulic rod 10 drives the pressing plate 6 to squeeze the pipe 3 in two strokes. The first stroke is half of the moving stroke of the output end of the second hydraulic rod 10. The pressing plate 6 squeezes and deforms the pipe 3, and then drives the third hydraulic rod 11 to insert the plug-in body 7 into one end of the pipe 3. At this time, the guide part 39 on the plug-in body 7 slides along the guide groove 13, and the moving path of the plug-in body 7 is further constrained, so that the outer surface of the plug-in body 7 can be evenly squeezed into one end of the pipe 3; When the No. 3 hydraulic rod 11 drives the connector 7 to move two-thirds of its total moving stroke, it then drives the No. 2 hydraulic rod 10 to perform the second stroke, which is half of the moving stroke of the output end of the No. 2 hydraulic rod 10, and completely squeezes one end of the pipe 3 onto the flat portion 5 and the connector 7, and then drives the No. 3 hydraulic rod 11 to drive the connector 7 to move, completing the final movement of the connector 7. At this time, the outer surface of the connector 7 will squeeze the inner surface of the flat mouth 12, expand the flat mouth 12, and perform the final extrusion trimming on the flat mouth 12. At this time, one end of the pipe 3 is extruded and formed, and finally the pressing assembly, expansion assembly and shaping assembly are withdrawn and reset in sequence.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic pipe making machine, characterized in that: The operating table (1) comprises an arc-shaped support plate (2) for supporting a tube (3) on the upper surface of the operating table (1), an expansion component is provided at one end of the support plate (2), pressing components are provided at upper and lower positions of the other end of the support plate (2), and a shaping component is provided at the other end of the support plate (2); The shaping component comprises a shaping rod (4), one end of which is provided with a flat portion (5), the flat portion (5) and the shaping rod (4) being arranged in a smooth transition, and the shaping rod (4) is capable of pushing the flat portion (5) into the pipe (3); Each of the pressing components comprises a pressing plate (6) adapted to the flat portion (5), and the upper and lower pressing plates (6) are capable of pressing the inner surface of the tube body to adhere to the surface of the flat portion (5); The expansion component comprises two symmetrically arranged plug-in bodies (7), which are capable of extending into the pipe (3) and are symmetrically arranged on both sides of the flat portion (5).

2. The automatic pipe making machine according to claim 1, characterized in that: Guide grooves (13) are provided on both sides of the flat portion (5), and the guide grooves (13) are arranged along the moving direction of the flat portion (5); The inner side wall of each plug-in body (7) is provided with a guide portion (39) adapted to the guide groove (13); the plug-in body (7) is plugged into the pipe (3) body, and the guide portion (39) slides into the guide groove (13).

3. The automatic pipe making machine according to claim 1, characterized in that: The end surfaces of the two pressing plates (6) are provided with insertion holes (14); the two plug-in bodies (7) are fixedly connected together via a No. 1 plate (15), and the side wall of the No. 1 plate (15) is provided with a plug pin (16) adapted to the insertion hole (14).

4. The automatic pipe making machine according to claim 3, characterized in that: An oil circuit (17) is provided inside each of the plug-in bodies (7), an oil inlet port of the oil circuit (17) is arranged on the back side of the first plate (15), and the oil inlet port of the oil circuit (17) is connected to an oil inlet pipe (18); The oil outlet port of the oil circuit (17) is connected to a plurality of micropores (19), and the oil outlet port of each micropore (19) is arranged on the outer surface of the plug-in body (7); The oil circuit (17) is also provided with a control component for controlling the oil circulation. The control component is arranged near the front end of the plug-in body (7), and the control component cooperates with the flat portion (5) for execution.

5. The automatic pipe making machine according to claim 1, characterized in that: A support frame (24) is provided at the other end of the support plate (2), the support frame (24) is fixedly connected to the operating table (1), and a cross bar (25) is provided on the support frame (24); The axis of the shaping rod (4) is provided with a sliding hole (26) adapted to the cross rod (25), and the sliding hole (26) penetrates the shaping rod (4) radially downward.

6. The automatic pipe making machine according to claim 5, characterized in that: A loading assembly is provided on one side of the operating table (1), and the loading assembly comprises a conveyor belt (27), on which a plurality of pipes (3) to be loaded and processed are placed; A guide plate (28) is obliquely provided on one side of the support plate (2), one edge of the guide plate (28) is fixedly connected to the support plate (2), and the other edge of the guide plate (28) extends to the end position of the conveyor belt (27).

7. The automatic pipe making machine according to claim 6, characterized in that: The outer surface of the conveyor belt (27) is provided with a plurality of groups of partitions (29), and the pipes (3) to be processed are placed between adjacent groups of partitions (29); The guide plate (28) is provided with a clearance opening (30), and the partition plate (29) on the upper surface of the conveyor belt (27) passes through the clearance opening (30) and rotates to a position below the conveyor belt (27).

8. The automatic pipe making machine according to claim 5, characterized in that: A limiting plate (31) is provided at the other end of the shaping rod (4), and the sliding hole (26) radially penetrates the limiting plate (31).

9. The automatic pipe making machine according to claim 6, characterized in that: An arc-shaped guide hole (32) is provided inside the operating table (1), one end of the guide hole (32) penetrates to the upper surface of the support plate (2), and the other end of the guide hole (32) penetrates to the outside of the operating table (1), and a push rod (33) is slidably connected inside the guide hole (32), a rack (34) is provided on the push rod (33), and a gear (35) is meshed on one side of the rack (34), and the gear (35) is used to rub the push rod (33) to slide inside the guide hole (32).

10. The automatic pipe making machine according to claim 9, characterized in that: The upper surface of the support plate (2) is provided with a recess (37), a top plate (38) is arranged in the recess (37), and the lower surface of the top plate (38) is fixedly connected to the upper end of the top rod (33).

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