Hydraulic machine for pipe fitting machining and using method thereof

Abstract

The invention relates to the technical field of pipe machining, in particular to a hydraulic machine for pipe fitting machining and a using method thereof.The hydraulic machine comprises a cabinet body and a controller, the controller is installed at the bottom of an inner cavity of the cabinet body, the hydraulic machine further comprises a stamping mechanism, a feeding mechanism and a lubricating mechanism, and the stamping mechanism is fixedly connected to the left end of the upper surface of the cabinet body; the feeding mechanism is fixedly connected to the right end of the upper surface of the cabinet body in the front-back direction. The lubricating mechanism is transversely mounted at the front end of the feeding mechanism; the base is fixedly connected to the left end of the upper surface of the cabinet body; the proximity switch is installed at the front end of the right side wall of the base and electrically connected with the controller. The two first hydraulic oil cylinders are transversely installed at the front end and the rear end of the upper surface of the base correspondingly, and the first hydraulic oil cylinders are electrically connected with the controller. Automatic punching and reducing of the pipe are achieved, the machining efficiency is improved, potential safety hazards of manual feeding and discharging are eliminated, regular maintenance of the punching sleeve is achieved, the service life of the punching sleeve is prolonged, and the machining cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe processing, in particular to a hydraulic machine for pipe processing and a use method thereof. BACKGROUND

[0002] Pipe processing mainly processes pipes required by industries such as industry, chemical industry, civil use, construction, and shipbuilding, and the processing methods include cutting, drilling, bending, and reducing, etc. The pipe reducing machine is a processing procedure that changes the outer diameter of the pipe by stamping with hydraulic power. The main application fields of the reduced pipe include construction, mechanical manufacturing, chemical industry, petroleum, and natural gas, etc.

[0003] In the pipe reducing process, the pipe is first placed on the work station, and two groups of hydraulic machines are perpendicular to each other. The first group of hydraulic machines positions the pipe, and the second group of hydraulic machines stamp the pipe to change the diameter, so as to achieve the purpose of reducing processing. When manually feeding and discharging, the labor intensity is large, the hydraulic machine has no self-locking function, the hydraulic machine is prone to malfunction and can easily injure the workers, and there is a safety hazard. In addition, the punch sleeve cannot be regularly maintained, the service life is short, and the processing cost is high. In view of the above actual problems, a high-safety hydraulic reducing machine for pipe processing is put forward. SUMMARY

[0004] In order to overcome the shortcomings of low automation and short service life of the punch sleeve in the prior art, the present application provides a hydraulic machine for pipe processing and a use method thereof.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a hydraulic machine for pipe processing, comprising a cabinet body and a controller, the controller is installed in the inner cavity bottom of the cabinet body, further comprising a stamping mechanism, a feeding mechanism and a lubricating mechanism, the stamping mechanism is fixedly connected to the left end of the upper surface of the cabinet body; the feeding mechanism is fixedly connected to the right end of the upper surface of the cabinet body along the front-rear direction; the lubricating mechanism is transversely installed at the front end of the feeding mechanism.

[0006] Preferably, the purpose is to stamp and form the pipe, and realize the pipe reducing processing, the stamping mechanism comprises a base, a proximity switch, a first hydraulic oil cylinder, a push plate, a sliding rail, a sliding block, a second hydraulic oil cylinder and a punch sleeve, the base is fixedly connected to the left end of the upper surface of the cabinet body; the proximity switch is installed at the front end of the right side wall of the base, and the proximity switch is electrically connected with the controller; the number of the first hydraulic oil cylinder is two, which are transversely installed at the front and rear ends of the upper surface of the base, and the first hydraulic oil cylinder is electrically connected with the controller; the push plate is installed at the output end of the first hydraulic oil cylinder; the sliding rail is installed at the front end of the right side wall of the push plate along the front-rear direction, and the shape of the sliding rail is dovetail-shaped; the sliding block is sleeved on the outer wall of the sliding rail; the second hydraulic oil cylinder is installed at the rear end of the right side wall of the push plate along the front-rear direction, and the second hydraulic oil cylinder is electrically connected with the controller, and the sliding block moves along the sliding rail under the driving of the second hydraulic oil cylinder; the punch sleeve is transversely installed at the right side wall of the sliding block.

[0007] Preferably, the purpose is to realize the automatic feeding of the pipe material, improve the processing efficiency, the feeding mechanism includes a frame, a chute, a shaft, a chain wheel, a chain, a motor, a tank, a storage assembly and a positioning assembly, the frame is fixedly connected to the right end of the upper surface of the cabinet in the front-rear direction, and the left and right sides of the frame are provided with a chute; the number of shafts is two, which are installed on the left and right sides of the inner cavity of the frame and can rotate around their own axes through bearings; the chain wheel is connected to the outer wall of the shaft; the chain is connected to the chain wheel; the motor is installed on the right side wall of the frame, and the motor is electrically connected with the controller, and the output end of the motor is connected with the right end of one of the shafts through a shaft coupling; under the driving of the motor, the chain is driven to rotate through the chain wheel; the tank is installed obliquely in the rear side of the inner cavity of the frame; the number of storage assemblies is several, which are installed on the outer wall of the chain in the circumferential direction through pins, and the storage assemblies are guided through the chute; the positioning assembly is installed on the top of the frame.

[0008] Preferably, the shape of the chute is consistent with that of the chain.

[0009] Preferably, the storage assembly includes a storage groove, an expansion port and a roller, the storage groove is connected to the outer wall of the chain through a pin, and the left side of the inner cavity of the storage groove is provided with an expansion port; the number of rollers is four, which are installed on the left and right sides of the storage groove and the front and rear ends, and the rollers are inserted into the inner cavity of the chute.

[0010] Preferably, the width of the expansion port is greater than the outer diameter of the bushing.

[0011] Preferably, the positioning assembly includes a support plate, a third hydraulic oil cylinder and a pressing plate, the support plate is fixedly connected to the top of the frame, and the support plate corresponds to the position of the bushing; the third hydraulic oil cylinder is vertically installed at the center position of the top of the support plate, and the third hydraulic oil cylinder is electrically connected with the controller; the pressing plate is installed on the output end of the third hydraulic oil cylinder.

[0012] Preferably, the purpose is to regularly lubricate the bushing and protect the bushing, the lubricating mechanism includes a cylinder, a guide groove, a cylinder, a rotating disc, a guide block, a support rod, a sponge sleeve, a lubricating oil tank and a solenoid valve, the cylinder is transversely installed at the front end of the frame, and the inner wall of the cylinder is transversely provided with a guide groove; the cylinder is transversely installed at the right end of the cylinder, and the cylinder is electrically connected with the controller; the rotating disc is installed on the output end of the cylinder and can rotate around its own axis through a bearing; one end of the guide block is installed on the side wall of the rotating disc, and the other end is inserted into the inner cavity of the guide groove; one end of the support rod is transversely installed on the left side wall center position of the rotating disc; the sponge sleeve is sleeved on the other end of the support rod; the lubricating oil tank is vertically installed on the left end of the upper surface of the cylinder for storing lubricating oil; the solenoid valve is installed at the bottom end of the lubricating oil tank, and the solenoid valve is electrically connected with the controller.

[0013] Preferably, the guide groove is divided into left and right parts, the left part is spiral, and the right part is linear.

[0014] A method for using a hydraulic machine for pipe processing, comprising the following steps:

[0015] Step one, the semi-finished pipe is placed in the material box, and the pipe is arranged in a single row limited by the space in the inner cavity of the material box. The controller controls the start and stop of the motor, the first hydraulic oil cylinder and the third hydraulic oil cylinder. The motor drives the rotating shaft to rotate, and the storage tank is pulled from the rear to the front under the transmission of the chain wheel and the chain. The roller rolls in the sliding groove, supporting the storage tank. When the inner cavity of the storage tank corresponds to the position of the discharge port of the material box, the pipe falls into the inner cavity of the storage tank. The third hydraulic oil cylinder drives the pressing plate to descend, and the pressing plate tightly presses the pipe in the storage tank, realizing automatic conveying of the pipe.

[0016] Step two, after the pipe is positioned, the first hydraulic oil cylinder drives the push plate to move right, and the punch enters the expansion port to punch the pipe. Through the controller, the above operation is repeated to realize automatic processing of the pipe.

[0017] Step three, the push plate moves each time to block the proximity switch, so that the proximity switch feeds back an electric signal to the controller. The counter in the controller counts. When the punch reaches the maintenance frequency, the controller starts the second hydraulic oil cylinder, the air cylinder and the electromagnetic valve. The second hydraulic oil cylinder pushes the sliding block to move forward along the sliding rail, so that the punch is not blocked by the frame. When the electromagnetic valve is opened, the lubricating oil in the lubricating oil tank drops on the sponge sleeve. Then the air cylinder drives the turntable to move left, the guide block moves along the guide groove, and when the guide block enters the spiral groove of the guide groove, the turntable rotates, and the sponge sleeve rotates into the punch, so that the punch is lubricated, realizing regular maintenance of the punch.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1. The motor drives the rotating shaft to rotate, and the storage tank is pulled from the rear to the front under the transmission of the chain wheel and the chain. The pipe in the material box enters the storage tank in order, the third hydraulic oil cylinder drives the pressing plate to descend, the pressing plate tightly presses the pipe to position it, the first hydraulic oil cylinder drives the push plate to move right, the punch punches the pipe, and the above operation is repeated to realize automatic punching and sizing of the pipe, which improves the processing efficiency and eliminates the safety hazards of manual feeding and discharging.

[0020] 2. The second hydraulic oil cylinder drives the sliding block to move forward along the sliding rail, the position of the punch changes, the electromagnetic valve discharges the lubricating oil to the sponge sleeve, the air cylinder drives the turntable to move left, and under the sliding condition of the guide block and the guide groove, the supporting rod drives the sponge sleeve to rotate into the punch, realizing regular maintenance of the punch, prolonging the service life of the punch and reducing the processing cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present application.

[0022] Figure 2 This is a schematic diagram of the stamping mechanism of the present invention;

[0023] Figure 3 This is an exploded view of the feeding mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point A in the image;

[0025] Figure 5 For the present invention Figure 3 Enlarged view of point B in the image;

[0026] Figure 6 This is a schematic diagram of the lubrication mechanism of the present invention;

[0027] Figure 7 This is a front sectional view of the lubrication mechanism of the present invention.

[0028] In the diagram: 1. Cabinet; 2. Controller; 3. Stamping mechanism; 4. Feeding mechanism; 5. Lubrication mechanism; 31. Base; 32. Proximity switch; 33. First hydraulic cylinder; 34. Push plate; 35. Slide rail; 36. Slider; 37. Second hydraulic cylinder; 38. Punch sleeve; 41. Frame; 42. Slide groove; 43. Rotating shaft; 44. Sprocket; 45. Chain; 46. Motor; 47. Material box; 48. Storage component; 49. Positioning component; 481. Storage slot; 482. Expansion port; 483. Roller; 491. Support plate; 492. Third hydraulic cylinder; 493. Pressure plate; 51. Cylinder; 52. Guide groove; 53. Cylinder; 54. Turntable; 55. Guide block; 56. Support rod; 57. Sponge sleeve; 58. Lubricating oil tank; 59. Solenoid valve. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] This invention provides a technical solution: a hydraulic press for processing pipe fittings, such as... Figures 1-7 As shown, it includes a cabinet 1 and a controller 2. The controller 2 is installed at the bottom of the inner cavity of the cabinet 1. A stamping mechanism 3 is fixedly connected to the left end of the upper surface of the cabinet 1. A feeding mechanism 4 is fixedly connected to the right end of the upper surface of the cabinet 1 along the front-back direction. A lubrication mechanism 5 is installed horizontally at the front end of the feeding mechanism 4.

[0031] The stamping mechanism 3 comprises a base 31 fixedly connected to the left end of the upper surface of the cabinet 1, a proximity switch 32 electrically connected to the controller 2 is installed at the front end of the right side wall of the base 31, the proximity switch 32 feeds back an electrical signal to the controller 2 when triggered, the internal counter of the controller 2 counts, first hydraulic cylinders 33 electrically connected to the controller 2 are installed at the front and rear ends of the upper surface of the base 31, push plates 34 are installed at the output ends of the first hydraulic cylinders 33, second hydraulic cylinders 37 and slide rails 35 are respectively installed at the front and rear ends of the right side wall of the push plates 34, the second hydraulic cylinders 37 are electrically connected to the controller 2, slide blocks 36 are sleeved on the outer walls of the slide rails 35, the rear sides of the slide blocks 36 are connected to the output ends of the second hydraulic cylinders 37, and the slide blocks 36 slide along the outer walls of the slide rails 35 under the driving of the second hydraulic cylinders 37, stamping sleeves 38 are transversely installed on the right side walls of the push plates 34, and the stamping sleeves 38 can extrude the pipe to reduce the outer diameter of the pipe.

[0032] As a preferred scheme, further, the feeding mechanism 4 comprises a frame 41 fixedly connected to the right end of the upper surface of the cabinet 1, slide grooves 42 are formed in the left and right inner walls of the frame 41, rotating shafts 43 capable of rotating around their own axes are installed at the front and rear sides in the inner cavities of the frame 41 through bearings, sprockets 44 are key-connected to the outer walls of the rotating shafts 43, chains 45 are connected to the sprocket teeth of the sprockets 44, the shapes of the slide grooves 42 are consistent with those of the chains 45, a motor 46 electrically connected to the controller 2 is installed on the right side wall of the frame 41, and the output end of the motor 46 is connected to the right end of one of the rotating shafts 43 through a shaft coupling, the chains 45 can be moved by the sprockets 44 under the driving of the motor 46, a material box 47 is obliquely installed at the rear side in the inner cavity of the frame 41, the material box 47 is used for storing pipes, the width of the bottom of the inner cavity of the material box 47 is reduced, so that the pipes can be ensured to fall in a row, a plurality of storage assemblies 48 are installed on the outer wall of the chain 45 in the circumferential direction, the storage assemblies 48 are inserted into the inner cavities of the slide grooves 42, the slide grooves 42 support the storage assemblies 48 when the storage assemblies 48 are moved under the traction of the chain 45, and a positioning assembly 49 is fixedly connected to the top of the frame 41.

[0033] As a preferred scheme, further, the storage assembly 48 comprises a storage groove 481 connected to the outer wall of the chain 45 through a pin shaft, the storage groove 481 is used for storing the pipes coming out of the material box 47, an expansion opening 482 is formed at the left end of the inner cavity of the storage groove 481, the width of the expansion opening 482 is greater than the outer diameter of the stamping sleeve 38, so that the stamping sleeve 38 can be ensured to move into the expansion opening 482 to stamp the pipes, rollers 483 are installed at the front and rear ends of the left and right sides of the storage groove 481, and the rollers 483 are inserted into the inner cavities of the slide grooves 42.

[0034] As a preferred scheme, further, the positioning assembly 49 comprises a support plate 491 mounted on the top of the frame 41, the support plate 491 corresponds to the position of the punch sleeve 38, and a third hydraulic oil cylinder 492 electrically connected with the controller 2 is mounted on the upper surface of the support plate 491, and a pressing plate 493 is mounted on the output end of the third hydraulic oil cylinder 492, and when the third hydraulic oil cylinder 492 drives the pressing plate 493 to move downward, the pressing plate 493 can press the pipe tightly in the storage groove 481.

[0035] As a preferred scheme, further, the lubricating mechanism 5 comprises a cylinder body 51 transversely mounted on the front end of the frame 41, a guide groove 52 is transversely formed in the inner wall of the cylinder body 51, a pneumatic cylinder 53 electrically connected with the controller 2 is transversely mounted on the right side wall of the cylinder body 51, a rotating disc 54 capable of rotating around its own axis is mounted on the output end of the pneumatic cylinder 53 through a bearing, a guide block 55 is mounted on the side wall of the rotating disc 54 and is inserted into the guide groove 52, the guide groove 52 is divided into two parts, the left part is spiral, and the right part is linear, when the pneumatic cylinder 53 drives the rotating disc 54 to move leftward, the rotating disc 54 does not rotate when the guide block 55 slides along the linear segment of the guide groove 52, and the guide block 55 gradually inclines after entering the spiral segment, so that the rotating disc 54 rotates, a support rod 56 is transversely mounted on the left side wall of the rotating disc 54, a sponge sleeve 57 is sleeved on the left end of the support rod 56 and absorbs lubricating oil, and a lubricating oil tank 58 is vertically mounted on the left end of the upper surface of the cylinder body 51 and is used for storing lubricating oil for maintaining the punch sleeve 38, and an electromagnetic valve 59 electrically connected with the controller 2 is mounted on the bottom of the lubricating oil tank 58.

[0036] Working principle:

[0037] Step one, the semi-finished pipe is placed in the material box 47, and the pipe is arranged in a single row due to the space limitation of the inner cavity of the material box 47, the controller 2 is used to control the start and stop of the motor 46, the first hydraulic oil cylinder 33 and the third hydraulic oil cylinder 492, the motor 46 drives the rotating shaft 43 to rotate, the storage groove 481 is pulled to move from back to front under the transmission of the sprocket 44 and the chain 45, the roller 483 rolls in the inner cavity of the sliding groove 42 and supports the storage groove 481, when the inner cavity of the storage groove 481 corresponds to the position of the discharge port of the material box 47, the pipe falls into the inner cavity of the storage groove 481, the third hydraulic oil cylinder 492 drives the pressing plate 493 to descend, and the pressing plate 493 presses the pipe tightly in the storage groove 481, so that the pipe is automatically conveyed;

[0038] When the storage groove 481 containing the pipe moves downward, the finished pipe can be taken off;

[0039] Step two, after the pipe is positioned, the first hydraulic oil cylinder 33 drives the push plate 34 to move rightward, and the punch sleeve 38 enters the expansion port 482 to punch the pipe, and the above operation is repeated through the controller 2, so that the pipe is automatically processed;

[0040] Step three, each time the push plate 34 will block the proximity switch 32, let the proximity switch 32 feedback to the controller 2 electrical signal, the controller 2 in the counter counting, when the sleeve 38 to reach the maintenance frequency, the controller 2 let the second hydraulic cylinder 37, 53 and solenoid valve 59 start, the second hydraulic cylinder 37 push slider 36 along the slide rail 35 forward, let the sleeve 38 is not blocked by the frame 41, solenoid valve 59 open when the lubricating oil tank 58 in the lubricating oil drops on the sponge set 57, then the cylinder 53 drive turntable 54 left, the guide block 55 along the guide groove 52 moves, when the guide block 55 into the guide groove 52 spiral groove, the turntable 54 rotates, let the sponge set 57 rotary into the sleeve 38, the sleeve 38 get lubrication, realize the sleeve 38 regular maintenance;

[0041] When you need to reset, just control the cylinder 53 drive turntable 54 right, let the support rod 56 drive the sponge set 57 right, can make the sponge set 57 reset, the second hydraulic cylinder 37 traction slider 36 back, so as to make the sleeve 38 reset.

[0042] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic machine for pipe machining, comprising a cabinet body (1) and a controller (2), the controller (2) is installed at the bottom of the inner cavity of the cabinet body (1), characterized in that, The pipe machining hydraulic machine further comprises: The punch mechanism (3) is fixedly connected to the left end of the upper surface of the cabinet (1); The feeding mechanism (4) is fixedly connected to the right end of the upper surface of the cabinet (1) in the front-rear direction; The lubricating mechanism (5) is transversely installed at the front end of the feeding mechanism (4); The punch mechanism (3) comprises: The base (31) is fixedly connected to the left end of the upper surface of the cabinet (1); The proximity switch (32) is installed at the front end of the right side wall of the base (31), and the proximity switch (32) is electrically connected with the controller (2); The first hydraulic oil cylinder (33) is transversely installed at the front and rear ends of the upper surface of the base (31), and the first hydraulic oil cylinder (33) is electrically connected with the controller (2); The push plate (34) is installed at the output end of the first hydraulic oil cylinder (33); The slide rail (35) is installed at the front end of the right side wall of the push plate (34) in the front-rear direction, and the shape of the slide rail (35) is dovetail-shaped; The sliding block (36) is sleeved on the outer wall of the slide rail (35); The second hydraulic oil cylinder (37) is installed at the rear end of the right side wall of the push plate (34) in the front-rear direction, and the second hydraulic oil cylinder (37) is electrically connected with the controller (2), and the sliding block (36) is driven to move forward and backward along the slide rail (35) under the drive of the second hydraulic oil cylinder (37); The punch sleeve (38) is transversely installed on the right side wall of the sliding block (36).

2. The hydraulic machine for pipe processing according to claim 1, characterized by The feeding mechanism (4) comprises: The frame (41) is fixedly connected to the right end of the upper surface of the cabinet (1) in the front-rear direction, and the frame (41) is provided with a sliding groove (42) on the left and right sides thereof; The shaft (43) is rotatably installed in the inner cavity of the frame (41) through bearings; The sprocket (44) is keyed to the outer wall of the shaft (43); The chain (45) is connected to the sprocket (44) teeth; The motor (46) is installed on the right side wall of the frame (41), and the motor (46) is electrically connected with the controller (2), and the output end of the motor (46) is connected with the right end of one of the shafts (43) through a shaft coupling, and the chain (45) is driven to rotate by the sprocket (44) under the drive of the motor (46); The hopper (47) is obliquely installed in the inner cavity of the frame (41) on the rear side; The storage assembly (48) is installed on the outer wall of the chain (45) in the circumferential direction through a pin shaft, and the sliding groove (42) guides the storage assembly (48); The positioning assembly (49) is installed on the top of the frame (41).

3. The hydraulic machine for pipe machining according to claim 2, characterized by The shape of the sliding groove (42) is consistent with that of the chain (45).

4. The hydraulic machine for processing a pipe according to claim 3, wherein The storage assembly (48) comprises: The storage groove (481) is connected to the outer wall of the chain (45) through a pin shaft, and the left side of the inner cavity of the storage groove (481) is provided with an expansion opening (482); The rollers (483) are installed on the front and rear ends of the left and right sides of the storage groove (481), and the rollers (483) are inserted into the inner cavity of the sliding groove (42).

5. The hydraulic machine for processing a pipe according to claim 4, wherein The width of the expansion opening (482) is greater than the outer diameter of the punch sleeve (38).

6. The hydraulic machine for processing a pipe according to claim 5, wherein The positioning assembly (49) comprises: A support plate (491) is fixedly connected to the top of the frame (41), and the support plate (491) corresponds to the position of the punch sleeve (38); A third hydraulic oil cylinder (492) is vertically installed at the center of the top of the support plate (491), and the third hydraulic oil cylinder (492) is electrically connected to the controller (2); A pressing plate (493) is installed at the output end of the third hydraulic oil cylinder (492).

7. The hydraulic machine for processing a pipe according to claim 6, wherein The lubricating mechanism (5) comprises: A barrel (51) is transversely installed at the front end of the frame (41), and a guide groove (52) is formed in the inner wall of the barrel (51); A cylinder (53) is transversely installed at the right end of the barrel (51), and the cylinder (53) is electrically connected to the controller (2); A rotating disc (54) is rotatably installed at the output end of the cylinder (53) through a bearing; A guide block (55) is installed at one end of the side wall of the rotating disc (54) and is inserted into the inner cavity of the guide groove (52); A support rod (56) is transversely installed at the center of the left side wall of the rotating disc (54); A sponge sleeve (57) is sleeved at the other end of the support rod (56); A lubricating oil tank (58) is vertically installed at the left end of the upper surface of the barrel (51) for storing lubricating oil; An electromagnetic valve (59) is installed at the bottom end of the lubricating oil tank (58), and the electromagnetic valve (59) is electrically connected to the controller (2).

8. The hydraulic machine for processing a pipe according to claim 7, wherein The guide groove (52) is divided into left and right parts, the left part is spiral-shaped, and the right part is linear-shaped.

9. The method of using a hydraulic tube bending machine of claim 8, wherein, The method comprises the following steps: Step one: The semi-finished pipe is placed in the material box (47), and the pipe is arranged in a single row under the space limitation of the inner cavity of the material box (47). The motor (46), the first hydraulic oil cylinder (33), and the third hydraulic oil cylinder (492) are started and stopped by the controller (2). The motor (46) drives the rotating shaft (43) to rotate, and the storage tank (481) is moved from back to front under the transmission of the sprocket (44) and the chain (45). The roller (483) rolls in the inner cavity of the chute (42), supporting the storage tank (481). When the inner cavity of the storage tank (481) corresponds to the position of the discharge port of the material box (47), the pipe falls into the inner cavity of the storage tank (481), the third hydraulic oil cylinder (492) drives the pressing plate (493) to descend, and the pressing plate (493) tightly presses the pipe in the storage tank (481), realizing automatic conveying of the pipe; Step two: After the pipe is positioned, the first hydraulic oil cylinder (33) drives the push plate (34) to move right, and the punch sleeve (38) enters the expansion port (482) to punch the pipe. The above operation is repeated by the controller (2) to realize automatic processing of the pipe. Step three, the push plate (34) each move will block access to the switch (32), let the proximity switch (32) to the controller (2) feedback electrical signal, the controller (2) in the counter counting, when the sleeve (38) to reach the maintenance frequency, the controller (2) let the second hydraulic cylinder (37), cylinder (53) and solenoid valve (59) start, the second hydraulic cylinder (37) push slider (36) along the slide rail (35) forward, let the sleeve (38) is not blocked by the frame (41), solenoid valve (59) open when the lubricating oil tank (58) in the lubricating oil drops on the sponge set (57), then the cylinder (53) drive the carousel (54) left, the guide block (55) along the guide groove (52) moves, when the guide block (55) into the guide groove (52) spiral groove, carousel (54) rotation, let the sponge set (57) rotary into the sleeve (38), the sleeve (38) get lubrication, realize the sleeve (38) regular maintenance.

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