Pipe blanking machine for ship ladder machining

Abstract

The invention provides a pipe blanking machine for ship ladder machining, and belongs to the technical field of pipe cutting equipment.The pipe blanking machine comprises a machine table, a power unit, a cutting knife and material supporting rollers, a movable platform is arranged on the side, close to the material supporting rollers, of the machine table, a core rod is arranged on the movable platform and located between the two material supporting rollers, and the power unit is connected with the cutting knife; the movable platform is further provided with a lead screw sliding table, and the core rod is connected to a sliding block of the lead screw sliding table through an extension rod so that the core rod can be driven by the lead screw sliding table to be inserted into a pipe or pulled out of the pipe. According to the pipe cutting device, the core rod is arranged, before cutting, the core rod is pushed into a pipe through the lead screw sliding table, the core rod is pushed to the position below the cutting knife, the core rod supports the cut position of the pipe from the interior, when the cutting knife is pressed downwards for cutting, the cut end face of the pipe is prevented from necking down, and the cutting quality is improved; and the cutting edge of the cutting knife is polished by a sand ring, and the sharpness of the cutting edge of the cutting knife is maintained.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe cutting equipment, and particularly relates to a pipe blanking machine for ship ladder processing. BACKGROUND

[0002] Compared with pipes of other shapes, a circular pipe has the same moment of inertia in all directions, can uniformly bear internal and external pressure, can bear greater pressure and torsion than pipes of other shapes under the same material consumption, is easy to connect, has various types of supporting pipe fittings (elbows, tees, etc.), and has various connection modes, so the circular pipe is widely applied to the production of telescopic ship ladders and detachable ship ladders.

[0003] In the production process of the ship ladder, in order to ensure the accurate pipe blanking, a hob pipe cutting machine is usually used to cut the pipe, the hob pipe cutting machine cuts the pipe through a rotating hob, and the hob pipe cutting machine has the characteristics of high efficiency and high accuracy, but the hob pipe cutting machine has the problem of pipe necking when cutting the pipe, so that the inner diameter size of the pipe cutting end face is reduced, and the pipe assembly accuracy in the later period is affected. SUMMARY

[0004] In view of the above problems, the pipe blanking machine for ship ladder processing is provided to at least partially solve the above problems.

[0005] The technical scheme adopted by the application is as follows: the pipe blanking machine for ship ladder processing comprises: a machine table, a power unit is arranged on one side of the table top of the machine table, and a cutting knife is arranged on the output shaft of the power unit; two mutually parallel material supporting rollers are arranged on the table top of the machine table, the material supporting rollers are located below the cutting knife, and the rotation shafts of the material supporting rollers are mutually parallel to the rotation shaft of the cutting knife; wherein, one side of the machine table close to the material supporting rollers is provided with a movable platform, a core rod and a material blocking plate are arranged on the movable platform, the core rod is located between the two material supporting rollers, a lead screw sliding table is further arranged on the movable platform, and the core rod is connected to the sliding block of the lead screw sliding table through an extension rod, so that the core rod is configured to be driven to be inserted into or extracted from the pipe to be cut by the lead screw sliding table.

[0006] Further, the core rod comprises a first core rod, a second core rod and a sand ring which are coaxially arranged.

[0007] Further, the first core rod is provided with a hanging table near one end of the second core rod, the sand ring is sleeved on the hanging table, a screw hole is formed on the first core rod, a screw rod corresponding to the screw hole is arranged on the second core rod, the second core rod is connected with the first core rod through the screw rod, and the sand ring is clamped between the first core rod and the second core rod.

[0008] Further, the movable platform comprises a mounting frame, a sliding groove is arranged on the mounting frame, the lead screw sliding table is connected to the sliding groove and can slide along the sliding groove, and the material blocking plate is connected to the lead screw sliding table.

[0009] Further, the machine table is provided with a mounting groove near one side of the mounting frame, a vertical lead screw is rotatably connected in the mounting groove, and one end of the mounting frame vertically slides in the mounting groove and is connected to the lead screw.

[0010] Further, the bottom end of the lead screw is provided with a rotating block.

[0011] Further, the power unit comprises a transmission box and a motor, the output shaft of the motor is connected to the input shaft of the transmission box, and the cutting knife is connected to the output shaft of the transmission box.

[0012] Further, the machine table is provided with a movable support on the table top, the transmission box is hinged to the movable support, the inside of the machine table is provided with a first electric push rod, the telescopic end of the first electric push rod is connected to the transmission box, and the first electric push rod is used to drive the transmission box to swing, so that the cutting knife approaches or moves away from the pipe.

[0013] Further, the machine table is provided with a pressure roller, a swing frame and a second electric push rod on the table top, the pressure roller is connected to one end of the swing frame, the second electric push rod is arranged in the inside of the machine table, and the telescopic end of the second electric push rod is connected to the other end of the swing frame, and the second electric push rod is used to drive the swing frame to swing, so that the pressure roller approaches or moves away from the pipe.

[0014] Further, the machine table is provided with a feeding mechanism, the feeding mechanism comprises a driving roller, a driven roller and a lifting frame, the driven roller is located above the driving roller, the lifting frame is fixed on the table top of the machine table, the driven roller is connected to the lifting frame, and the driving roller is arranged to be able to ascend and descend, and when the driving roller ascends, the driving roller and the driven roller can clamp and convey the pipe.

[0015] The beneficial effects achieved by the above structure are as follows: 1. By setting the core rod, before cutting, the core rod is pushed into the pipe by the screw rod sliding table, and the core rod is pushed to the lower part of the cutting knife, the core rod supports the cutting part of the pipe from the inside, and when the cutting knife is pressed to cut, the cutting end face of the pipe is avoided to produce necking, and the cutting quality is improved.

[0016] 2. By setting the sand ring on the core rod and setting a certain frequency, the cutting knife is controlled to contact the sand ring, so that the cutting knife can contact the sand ring after a certain number of normal cutting, and the cutting knife is polished by the sand ring to maintain the sharpness of the cutting knife. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic view of a pipe blanking machine for ship ladder processing is proposed for the embodiment of the present application. Figure 2 A front view schematic view of a pipe blanking machine for ship ladder processing is proposed for the embodiment of the present application. Figure 3 A structure schematic view of a mounting frame in a pipe blanking machine for ship ladder processing is proposed for the embodiment of the present application. Figure 4 A structure schematic view of a core rod in a pipe blanking machine for ship ladder processing is proposed for the embodiment of the present application. Figure 5 A split structure schematic view of a core rod in a pipe blanking machine for ship ladder processing is proposed for the embodiment of the present application.

[0018] Among them, 1, machine table; 11, transmission box; 12, motor; 13, movable support; 14, first electric push rod; 15, pressure roller; 16, swing frame; 17, second electric push rod; 101, mounting groove; 2, cutting knife; 3, material supporting roller; 4, core rod; 41, first core rod; 411, hanging table; 42, second core rod; 43, sand ring; 44, screw rod; 401, screw hole; 5, material blocking plate; 6, extension rod; 7, mounting frame; 701, sliding groove; 71, screw rod; 72, rotating block; 8, screw rod sliding table; 9, driving roller; 91, driven roller; 92, lifting frame.

[0019] The drawings are used to provide further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0020] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] As shown in Figure 1 The present application proposes a pipe blanking machine for ship ladder processing, which comprises a machine table 1, a power unit and a cutting knife 2, the power unit is arranged on one side of the table top of the machine table 1, the cutting knife 2 is connected to the output shaft of the power unit, and two material supporting rollers 3 are further arranged on the table top of the machine table 1, the material supporting rollers 3 are located below the cutting knife 2, the two material supporting rollers 3 are arranged in parallel to the rotating shaft of the cutting knife 2 (as shown in Figure 1 The two material supporting rollers 3 are arranged side by side, a material supporting area for supporting the pipe is formed between the two material supporting rollers 3, and the two material supporting rollers 3 can rotate.

[0023] Therefore, when cutting, the pipe to be cut is placed between the two material supporting rollers 3 and supported by the two material supporting rollers 3, the power unit drives the cutting knife 2 to rotate and swing downward, so that the cutting knife 2 performs roll cutting on the pipe, during the roll cutting, the pipe is dragged to rotate by the cutting knife 2, so that the pipe is roll cut around one circle, until the pipe is cut off.

[0024] In a specific embodiment, the power unit comprises a transmission box 11 and a motor 12, the output shaft of the motor 12 is connected to the input shaft of the transmission box 11, the cutting knife 2 is connected to the output shaft of the transmission box 11, and the motor 12 drives the cutting knife 2 to rotate and cut through the transmission box 11.

[0025] The power unit further comprises a movable support 13 and a first electric push rod 14, the movable support 13 is fixed on the table top of the machine table 1, the transmission box 11 is hinged to the movable support 13, so that the two ends of the transmission box 11 can swing, the first electric push rod 14 is arranged inside the machine table 1, the extension end of the first electric push rod 14 extends to the table top of the machine table 1 and is connected to the transmission box 11, the transmission box 11 is driven to swing by the first electric push rod 14, so that the cutting knife 2 approaches or moves away from the pipe.

[0026] It can be understood that the two ends of the first electric push rod 14 are respectively hinged to the transmission box 11 and the machine table 1, avoiding interference with the swing of the transmission box 11.

[0027] Therefore, when cutting the pipe, the pipe to be cut is placed between the two material supporting rollers 3 and supported by the two material supporting rollers 3. The power unit drives the cutting knife 2 to rotate. Then, the first electric push rod 14 drives the transmission box 11 to swing and makes the cutting knife 2 close to the pipe downward to cut the pipe.

[0028] It should be noted that according to the diameter and wall thickness of the pipe to be cut, the distance of the cutting knife 2 moving downward for cutting is calculated, and then the extension amplitude of the first electric push rod 14 is controlled to make the cutting knife 2 move downward by a specified distance to cut the pipe.

[0029] In combination with Figure 1 As shown in the figure, the surface of the machine table 1 is provided with a pressing wheel 15, a swing frame 16 and a second electric push rod 17. The swing frame 16 is fixed on the surface of the machine table 1. The pressing wheel 15 is connected to one end of the swing frame 16, and the pressing wheel 15 corresponds to the pipe supporting area. The second electric push rod 17 is arranged inside the machine table 1, and the extension end of the second electric push rod 17 is connected to the other end of the swing frame 16, which can drive the swing frame 16 to swing and make the pressing wheel 15 close to or away from the pipe.

[0030] It can be understood that the two ends of the second electric push rod 17 are respectively hinged to the swing frame 16 and the machine table 1, avoiding interference with the swing of the swing frame 16.

[0031] Therefore, when cutting the pipe, the second electric push rod 17 drives the swing frame 16 to swing and makes the pressing wheel 15 press on the outer wall of the pipe to be cut downward, so as to apply downward pressure to the pipe to be cut, which is pressed tightly on the material supporting roller 3, avoiding the pipe from shaking during cutting. Since the material supporting roller 3 and the pressing wheel 15 can rotate, the rotation of the pipe during cutting is not affected.

[0032] It should be noted that according to the diameter of the pipe to be cut, the distance of the pressing wheel 15 moving downward is calculated, and then the extension amplitude of the second electric push rod 17 is controlled to make the pressing wheel 15 move downward by a specified distance and press on the outer wall of the pipe to be cut.

[0033] In combination with Figure 1 As shown in the figure, the machine table 1 is provided with a feeding mechanism. The feeding mechanism includes a driving roller 9, a driven roller 91 and a lifting frame 92. The driven roller 91 is located above the driving roller 9. The lifting frame 92 is fixed on the surface of the machine table 1. The lifting frame 92 is provided with a vertical sliding groove and a sliding frame. The driven roller 91 is connected to the sliding frame of the lifting frame 92, so that the driven roller 91 can be adjusted in height along the lifting frame 92 to adapt to pipes of different diameters.

[0034] Further, the sliding frame is provided with a bolt and a nut, the bolt passes through the sliding groove, and the nut and the sliding frame are respectively located on both sides of the lifting frame 92. By tightening the nut, the nut and the sliding frame are clamped on both sides of the lifting frame 92, and then the height of the passive roller 91 is fixed.

[0035] The active roller 9 is arranged to be able to ascend and descend. When the active roller 9 ascends, the active roller 9 and the passive roller 91 can clamp and convey the pipe material to the material supporting roller 3.

[0036] In a specific embodiment, one side of the active roller 9 is provided with a servo motor for driving the active roller 9 to rotate. The inside of the machine table 1 is provided with an elevator capable of driving the active roller 9 to ascend or descend.

[0037] In this way, the elevator drives the active roller 9 to ascend, so that the active roller 9 and the passive roller 91 clamp the pipe material. Then, the servo motor drives the active roller 9 to rotate, so as to convey the pipe material to the material supporting roller 3, and control the conveying distance of the pipe material according to the cutting length of the pipe material.

[0038] It should be noted that the distance of the active roller 9 ascending is fixed. Therefore, the height of the passive roller 91 needs to be adjusted according to the diameter of the pipe material, so that the material supporting roller 3 can stably clamp the pipe material when ascending, and at the same time, avoid the pipe material from being excessively clamped and deformed. At the same time, the active roller 9 can descend below the material supporting roller 3 when descending, so that the pipe material can be supported by the material supporting roller 3, and the cutting accuracy is ensured.

[0039] In combination with the drawings shown in Figure 1 , Figure 2 and Figure 3 , the side of the machine table 1 close to the material supporting roller 3 is provided with a movable platform. The movable platform is provided with a core rod 4 and a material blocking plate 5, and the core rod 4 is located between the two material supporting rollers 3. The movable platform is also provided with a lead screw sliding table 8. The core rod 4 is connected to the sliding block of the lead screw sliding table 8 through an extension rod 6, so that the core rod 4 can be driven by the lead screw sliding table 8 to be inserted into or extracted from the pipe material.

[0040] The core rod 4 is rotatably connected to the extension rod 6 through a bearing, so that the core rod 4 can rotate around its center.

[0041] The material blocking plate 5 is used to limit the conveying of the pipe material. The distance between the material blocking plate 5 and the cutting knife 2 is the length of the pipe material cut off. Therefore, by adjusting the distance between the material blocking plate 5 and the cutting knife 2, the cutting length of the pipe material is adjusted.

[0042] Thus, when cutting the pipe, the baffle plate 5 is adjusted to the specified position, the distance between the baffle plate 5 and the cutting knife 2 is consistent with the length of the pipe to be cut off, when conveying the pipe, one end of the pipe is pushed to contact the baffle plate 5, then the lead screw sliding table 8 pushes the mandrel 4 into the pipe through the extension rod 6, and pushes the mandrel 4 to the lower side of the cutting knife 2, the mandrel 4 supports the cutting of the pipe from the inside, and avoids the necking of the cutting end face of the pipe when the cutting knife 2 is pressed to cut, thereby improving the cutting quality.

[0043] It should be noted that the mandrel 4 is detachably connected, so that the mandrel 4 of the corresponding diameter can be replaced according to the inner diameter of the pipe, and the pipe cutting of various inner diameters can be supported.

[0044] In a specific embodiment, the movable platform includes a mounting frame 7, the mounting frame 7 is provided with a sliding groove 701, the two sides of the lead screw sliding table 8 are provided with bolts and nuts, the bolts pass through the sliding groove 701, and the nuts are located below the sliding groove 701. The lead screw sliding table 8 is connected to the sliding groove 701 through the bolts and can slide along the sliding groove 701, and the baffle plate 5 is connected to the lead screw sliding table 8.

[0045] When adjusting the distance between the baffle plate 5 and the cutting knife 2 according to the cutting length of the pipe, the position of the lead screw sliding table 8 is adjusted synchronously, so that the mandrel 4 connected to the lead screw sliding table 8 is always located at the baffle plate 5. The baffle plate 5 is provided with a hole matched with the mandrel 4, and the mandrel 4 is arranged in the hole, so that the baffle plate 5 can support the mandrel 4 and avoid deformation of the extension rod 6 due to gravity.

[0046] After the lead screw sliding table 8 is adjusted to the specified position, the nut is tightened, so that the position of the lead screw sliding table 8 is fixed, and correspondingly, the position of the baffle plate 5 is also fixed.

[0047] It should be noted that when the mandrel 4 is replaced, the baffle plate 5 with a hole of a corresponding size is also replaced.

[0048] Further, the machine table 1 is provided with a mounting groove 101 on one side close to the mounting frame 7, a vertical lead screw 71 is rotatably connected in the mounting groove 101, one end of the mounting frame 7 vertically slides in the mounting groove 101 and is connected to the lead screw 71. By rotating the lead screw 71, the mounting frame 7 can be driven to rise or fall. When cutting pipes of different diameters, the mounting frame 7 is raised or lowered to make the mandrel 4 coaxial with the pipe, so that the pipe cutting of various diameters can be supported.

[0049] Still further, the bottom end of the lead screw 71 is provided with a rotating block 72, the rotating block 72 is arranged as a regular hexagonal prism, and a common wrench on the market can be used to connect the rotating block 72 to rotate the lead screw 71.

[0050] In combination Figure 4 and Figure 5As shown, the mandrel 4 includes a first mandrel 41, a second mandrel 42 and a sand ring 43 that are coaxially distributed with each other, with the sand ring 43 located between the first mandrel 41 and the second mandrel 42.

[0051] When the mandrel 4 is pushed into the tube, the sand ring 43 is positioned directly below the cutting blade 2 (e.g., Figure 4 As shown, when the cutting blade 2 moves downward to cut, it cuts a certain distance. At this time, the cutting edge of the cutting blade 2 comes into contact with the abrasive ring 43 and generates friction. The abrasive ring 43 is used to polish the cutting edge of the cutting blade 2 to maintain the sharpness of the cutting edge of the cutting blade 2.

[0052] In this way, a certain frequency can be set to control the cutting blade 2 to overcut and contact the abrasive ring 43, so that the cutting blade 2 can be sharpened after a certain number of normal cuts, thus maintaining the sharpness of the cutting edge of the cutting blade 2.

[0053] In a specific embodiment, the first core rod 41 is provided with a mounting platform 411 at one end near the second core rod 42, and the sand ring 43 is sleeved on the mounting platform 411. The first core rod 41 is provided with a screw hole 401, and the second core rod 42 is provided with a screw 44 corresponding to the screw hole 401. The second core rod 42 is connected to the first core rod 41 through the screw 44, so that the sand ring 43 is clamped between the first core rod 41 and the second core rod 42.

[0054] As the abrasive ring 43 rubs against the cutting blade 2, the abrasive ring 43 is gradually worn down. Therefore, by disassembling the second core rod 42, the worn abrasive ring 43 can be replaced. After replacing the abrasive ring 43, the second core rod 42 is reconnected to the first core rod 41 to clamp the abrasive ring 43.

[0055] The working principle of this invention is as follows: When cutting the pipe, the baffle plate 5 is adjusted to the designated position, and the distance between the baffle plate 5 and the cutting blade 2 is consistent with the length of the pipe to be cut. The elevator drives the active roller 9 to rise, so that the active roller 9 and the passive roller 91 clamp the pipe. Then, the servo motor drives the active roller 9 to rotate, thereby conveying the pipe to the support roller 3. When the end of the pipe contacts the baffle plate 5, the active roller 9 descends. At this time, the pipe is supported by the support roller 3. Then, the second electric push rod 17 drives the swing frame 16 to swing, and the pressure roller 15 presses down on the outer wall of the pipe to be cut, applying downward pressure to the pipe to be cut, so that the pipe to be cut is pressed tightly on the support roller 3. After the pipe is compressed, the lead screw slide 8 pushes the mandrel 4 into the pipe through the extension rod 6 and pushes the mandrel 4 below the cutting blade 2. The mandrel 4 supports the pipe cutting point from the inside. The power unit drives the cutting blade 2 to rotate. Then, the first electric push rod 14 drives the transmission box 11 to swing and make the cutting blade 2 move downwards and closer to the pipe to cut the pipe. After the pipe is cut, the mandrel 4 is pulled out and the cut pipe falls down. Then the pipe is fed forward again and cut again. The above steps are repeated to realize the segmented cutting of long pipes. Set a certain frequency, control cutting knife 2 over cutting and sand ring 43 contact, so that cutting knife 2 can be in normal cutting a certain number of times, blade edge and sand ring 43 contact, and produce friction, using sand ring 43 on the blade edge of cutting knife 2 polishing, maintain cutting knife 2 blade edge sharpness.

[0056] The above embodiments: by setting the core rod 4, before cutting, using the lead screw sliding table 8 to push the core rod 4 into the pipe, and push the core rod 4 to the cutting knife 2 below, the core rod 4 by the internal pipe cutting support, in cutting knife 2 under the pressure cutting, avoid the pipe cutting end face produces the neck, improve the cutting quality.

[0057] By setting the sand ring 43 on the core rod 4, and setting a certain frequency, control cutting knife 2 over cutting and sand ring 43 contact, so that cutting knife 2 can be in normal cutting a certain number of times, blade edge and sand ring 43 contact, and produce friction, using sand ring 43 on the blade edge of cutting knife 2 polishing, maintain cutting knife 2 blade edge sharpness.

[0058] It should be noted that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.

[0059] The above describes the present application and its implementation, this description is not limited, the drawings shown is only one of the embodiments of the present application, the actual structure is not limited. In general, if the ordinary skilled in the art is inspired, without departing from the purpose of the invention, without creative design of similar structure and examples of the technical scheme, all should belong to the protection scope of the present application.

Claims

1. A pipe cutting machine for ship ladder processing, characterized in that, Include: The machine table (1), the one side of the table top of the machine table (1) is equipped with power unit, the output shaft of the power unit is equipped with cutting knife (2); Two mutually parallel material supporting rollers (3) are arranged on the table top of the machine table (1), the material supporting roller (3) is located below the cutting knife (2), and the rotating shaft of the material supporting roller (3) is mutually parallel with the rotating shaft of the cutting knife (2); Wherein, the side of the machine table (1) close to the material supporting roller (3) is equipped with movable platform, the movable platform is equipped with core rod (4) and material baffle (5), and the core rod (4) is located in the middle of the two material supporting rollers (3), the movable platform is also equipped with screw rod sliding table (8), the core rod (4) is connected to the sliding block of the screw rod sliding table (8) through extension rod (6), so that the core rod (4) is configured to be driven into the pipe to be cut or extracted from the pipe to be cut by the screw rod sliding table (8).

2. The tube stock machine for boat ladder fabrication of claim 1, wherein: The core rod (4) includes first core rod (41), second core rod (42) and sand ring (43) which are coaxially distributed, the sand ring (43) is located between the first core rod (41) and the second core rod (42).

3. The tube stock machine for boat ladder fabrication of claim 2, wherein: The first core rod (41) is equipped with hanging table (411) at one end close to the second core rod (42), the sand ring (43) is sleeved on the hanging table (411), the first core rod (41) is provided with screw hole (401), the second core rod (42) is provided with screw rod (44) corresponding to the screw hole (401), the second core rod (42) is connected with the first core rod (41) through the screw rod (44), and the sand ring (43) is clamped between the first core rod (41) and the second core rod (42).

4. The tube stock machine for ship ladder fabrication of claim 1, wherein: The movable platform includes mounting frame (7), the mounting frame (7) is equipped with sliding groove (701), the screw rod sliding table (8) is connected to the sliding groove (701) and can slide along the sliding groove (701), and the material baffle (5) is connected to the screw rod sliding table (8).

5. The tube stock machine for ship ladder fabrication of claim 4, wherein: The side of the machine table (1) close to the mounting frame (7) is equipped with mounting groove (101), the vertical arrangement of the screw rod (71) is rotatably connected in the mounting groove (101), one end of the mounting frame (7) is vertically slid in the mounting groove (101) and is connected to the screw rod (71).

6. The tube stock machine for boat ladder fabrication of claim 5, wherein: The bottom end of the screw rod (71) is equipped with rotating block (72).

7. The tube stock machine for ship ladder fabrication of claim 1, wherein: The power unit includes transmission box (11) and motor (12), the output shaft of the motor (12) is connected to the input shaft of the transmission box (11), and the cutting knife (2) is connected to the output shaft of the transmission box (11).

8. The tube stock machine for ship ladder fabrication of claim 7, wherein: The table top of the machine table (1) is equipped with movable support (13), the transmission box (11) is hinged on the movable support (13), the inside of the machine table (1) is equipped with first electric push rod (14), the telescopic end of the first electric push rod (14) is connected to the transmission box (11), for driving the transmission box (11) to swing, so that the cutting knife (2) is close to or away from the pipe.

9. The tube stock machine for ship ladder fabrication of claim 1, wherein: The machine table (1) is provided with a pressing wheel (15), a swing frame (16) and a second electric push rod (17), the pressing wheel (15) is connected to one end of the swing frame (16), the second electric push rod (17) is arranged in the interior of the machine table (1), and the telescopic end of the second electric push rod (17) is connected to the other end of the swing frame (16), for driving the swing frame (16) to swing, so that the pressing wheel (15) approaches or moves away from the pipe material.

10. The tube stock machine for ship ladder fabrication of claim 1, wherein: The machine table (1) is provided with a feeding mechanism, which comprises a driving roller (9), a driven roller (91) and a lifting frame (92), the driven roller (91) is located above the driving roller (9), the lifting frame (92) is fixed on the table top of the machine table (1), the driven roller (91) is connected to the lifting frame (92), and the driving roller (9) is arranged to be capable of lifting, when the driving roller (9) rises, the driving roller (9) and the driven roller (91) can clamp and convey the pipe material.

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