Polishing equipment for production of marine metal pipe fittings

Abstract

The invention relates to the technical field of production of marine metal pipe fittings, in particular to polishing equipment for production of marine metal pipe fittings, the upper side of a polishing table is fixedly connected with a rectangular strip shell which is transversely arranged, and a spacing adjusting mechanism is arranged in the rectangular strip shell; the two ends of the distance adjusting mechanism are fixedly connected with a first moving rod and a second moving rod which are vertically arranged correspondingly, two symmetrically-arranged openings are formed in the upper side of the rectangular strip shell, and the first moving rod and the second moving rod penetrate through the two openings correspondingly. The pipe fitting clamping mechanism is arranged to clamp and fix pipe fittings with different diameters, the interval adjusting mechanism and the electric telescopic rod are arranged to drive the grinding roller to be inserted into the pipe fittings and abut against the inner walls of the pipe fittings so as to grind the inner walls of the pipe fittings, the grinding mechanism and the rotating mechanism are arranged to comprehensively grind the inner walls of the pipe fittings, and the grinding efficiency is improved. Machining quality is high, machining efficiency is high, operation is easy, and manpower is saved.

Description

Technical Field

[0001] The invention relates to the technical field of production of ship metal pipe fittings, in particular to a grinding device for production of ship metal pipe fittings. Background Art

[0002] Marine pipe fittings are a classification of pipe fittings. They are parts that connect pipes into pipelines. According to the connection method, they can be divided into four categories: socket fittings, threaded fittings, flange fittings and welded fittings. They are mostly made of the same material as the pipes. There are metal fittings in the hull. Metal pipe direct, also known as iron direct, is a kind of electrical material. It is made of high-quality pipes and protected by double-sided galvanizing. It is used to connect pipes. There is a rolled positioning groove in the middle of the pipe joint. The taper formed can make the catheter inserted tightly and have good sealing. When concealed, mortar and even moisture are not easy to enter the catheter. The depth of the groove and the smooth inner wall after the catheter is inserted do not affect threading.

[0003] When producing marine metal pipe fittings, the inner wall of the metal pipe fittings needs to be polished. However, the existing pipe fitting polishing equipment is difficult to fully and automatically polish the inner wall of pipe fittings of different calibers and lengths. The operation steps are cumbersome, manpower is wasted, the polishing efficiency is low, the polishing quality is poor, it is difficult to adjust in multiple directions, and it is inconvenient to use. Therefore, those skilled in the art provide a production polishing equipment for marine metal pipe fittings to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a grinding device for producing marine metal pipes to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding equipment for the production of marine metal pipe fittings, comprising a grinding table, a laterally arranged rectangular strip shell is fixedly connected to the upper side of the grinding table, and a spacing adjustment mechanism is provided in the rectangular strip shell, two ends of the spacing adjustment mechanism are respectively fixedly connected to a vertically arranged first moving rod and a second moving rod, two symmetrically arranged openings are provided on the upper side of the rectangular strip shell, and the first moving rod and the second moving rod are respectively arranged to pass through the two openings, the upper end of the first moving rod is fixedly connected to a vertically arranged electric telescopic rod, and the end of the electric telescopic rod away from the first moving rod is fixedly connected to a first L-shaped plate, a grinding mechanism is provided on the first L-shaped plate, the upper end of the second moving rod is fixedly connected to a second L-shaped plate, and a rotating mechanism is fixedly connected to the second L-shaped plate, one end of the rotating mechanism passes through the second L-shaped plate and is fixedly connected to a pipe clamping mechanism, a front end of the grinding table is fixedly connected to a control panel, and one end of the spacing adjustment mechanism, the electric telescopic rod, the grinding mechanism, the rotating mechanism and the pipe clamping mechanism are respectively electrically connected to the control panel.

[0006] As a further solution of the present invention: the spacing adjustment mechanism includes a first motor fixed at one end of the rectangular bar shell, the driving end of the first motor is fixedly connected to a transversely arranged first rotating shaft, and one end of the first rotating shaft extends through the rectangular bar shell and is fixedly connected to a transversely arranged bidirectional threaded rod, two symmetrically arranged nut blocks are respectively threadedly connected to the bidirectional threaded rod, and the upper sides of the two nut blocks are respectively fixedly connected to the first moving rod and the second moving rod.

[0007] As a further solution of the present invention: the inner wall of one end of the rectangular strip shell is rotatably connected to the end of the bidirectional threaded rod away from the first rotating shaft through the first bearing seat.

[0008] As a further solution of the present invention: the grinding mechanism includes a second motor fixed on the upper side of the horizontal end of the first L-shaped plate, the driving end of the second motor is fixedly connected to a transversely arranged second rotating shaft, and one end of the second rotating shaft passes through the vertical end of the first L-shaped plate and is fixedly connected to a grinding roller.

[0009] As a further solution of the present invention: the second rotating shaft and the grinding roller are fixedly connected by detachable bolt connection.

[0010] As a further solution of the present invention: the rotating mechanism includes a third motor fixed on the upper side of the horizontal end of the second L-shaped plate, the driving end of the third motor is fixedly connected to a transversely arranged third rotating shaft, and one end of the third rotating shaft passes through the second L-shaped plate and is fixedly connected to the pipe clamping mechanism.

[0011] As a further solution of the present invention: a through hole is opened on the side wall of the second L-shaped plate, and the third rotating shaft is arranged through the through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the third rotating shaft through a bearing.

[0012] As a further solution of the present invention: the pipe clamping mechanism includes a fourth motor and a clamping disc, the fourth motor is fixedly connected to one end of the rotating mechanism, and the front end of the fourth motor is fixedly connected to the rear center of the clamping disc, the driving end of the fourth motor is fixedly connected to a transversely arranged fourth rotating shaft, a first cavity is opened at the center of the side wall of the clamping disc, and three second cavities are opened on the side wall of the clamping disc, the three second cavities are arranged around the first cavity at equal intervals, one end of the fourth rotating shaft extends through the first cavity and is fixedly connected to a driving bevel gear, the inner bottom walls of the three second cavities are rotatably connected to a screw rod through a second bearing seat, and one end of the screw rod away from the second bearing seat is fixedly connected to a driven bevel gear meshing with the driving bevel gear, a threaded block is threadedly connected to the screw rod, and a connecting rod is fixedly connected to the front side of the threaded block, and three sliding openings connected to the three second cavities are opened on the front side of the clamping disc, and the connecting rod passes through the sliding opening and is fixedly connected to a clamping plate.

[0013] As a further solution of the present invention: the three clamping plates are all arranged in an arc shape, and the three clamping plates are arranged at equal intervals around the rotation axis of the clamping disc as the center of the circle.

[0014] As a further solution of the present invention: four vertically symmetrically arranged legs are fixedly connected to the four corners of the bottom of the grinding table, and a locking universal wheel is fixedly connected to one end of the leg away from the grinding table.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting up the pipe clamping mechanism, the fourth motor is started to drive the fourth shaft to rotate, and then the active bevel gear is driven to rotate. Since the active bevel gear is respectively engaged with the three driven bevel gears, the screw rod is driven to rotate. At this time, the three threaded blocks are forced to move in the direction close to the active bevel gear, and then the three clamping plates are driven to clamp the pipe to fix it. The structural design is ingenious and the fixation is reliable. It can clamp and fix pipes of different diameters, thereby improving the processing range.

[0016] By setting a spacing adjustment mechanism and an electric telescopic rod, the first motor is started to drive the first rotating shaft to rotate, and then the bidirectional threaded rod is driven to rotate. At this time, the two nut blocks are forced to move in similar directions, and then the first moving rod and the second moving rod are driven to move in similar directions, driving the grinding roller to insert into the pipe fitting. Then, the electric telescopic rod is started to work, the height of the grinding roller is adjusted to press against the inner wall of the pipe fitting, so as to perform inner wall grinding processing on pipe fittings of different diameters.

[0017] By setting up a grinding mechanism and a rotating mechanism, the second motor is started to drive the second rotating shaft to rotate, and then the grinding roller is driven to rotate, so as to achieve the grinding of the inner wall of the pipe fitting. At the same time, the third motor is started to drive the third rotating shaft to rotate, and then the pipe fitting on the clamping disc is driven to rotate, thereby achieving comprehensive grinding processing of the inner wall of the pipe fitting, with high processing quality, high processing efficiency, simple operation and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a grinding device for the production of marine metal pipes; Figure 2 It is a schematic diagram of the front cross-sectional structure of a rectangular strip shell in a grinding device for the production of marine metal pipes; Figure 3 It is a schematic diagram of the three-dimensional structure of the first L-shaped plate in a grinding device for producing marine metal pipes; Figure 4 It is a schematic diagram of the three-dimensional structure of the second L-shaped plate in a grinding device for producing marine metal pipes; Figure 5The diagram is a schematic diagram of the left-side cross-sectional structure of a clamping disc in a grinding device for the production of marine metal pipes.

[0019] In the figure: 1, grinding table; 2, rectangular strip shell; 3, first moving rod; 4, second moving rod; 5, opening; 6, electric telescopic rod; 7, first L-shaped plate; 8, second L-shaped plate; 9, first motor; 10, first rotating shaft; 11, two-way threaded rod; 12, nut block; 13, second motor; 14, second rotating shaft; 15, grinding roller; 16, third motor; 17, third rotating shaft; 18, fourth motor; 19, clamping disc; 20, fourth rotating shaft; 21, first cavity; 22, second cavity; 23, active bevel gear; 24, lead screw; 25, driven bevel gear; 26, threaded block; 27, connecting rod; 28, sliding mouth; 29, clamping plate; 30, supporting leg; 31, locking universal wheel; 32, control panel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0025] See also Figures 1 to 5 In an embodiment of the present invention, a grinding device for the production of marine metal pipes includes a grinding table 1, a rectangular bar shell 2 arranged horizontally is fixedly connected to the upper side of the grinding table 1, and a spacing adjustment mechanism is provided in the rectangular bar shell 2, and the two ends of the spacing adjustment mechanism are respectively fixedly connected to a first moving rod 3 and a second moving rod 4 arranged vertically, and two symmetrical openings 5 ​​are provided on the upper side of the rectangular bar shell 2, and the first moving rod 3 and the second moving rod 4 are respectively arranged to penetrate the two openings 5, and the upper end of the first moving rod 3 is fixedly connected to a vertically arranged electric telescopic rod 6, and the end of the electric telescopic rod 6 away from the first moving rod 3 is fixedly connected to a first L-shaped plate 7, and the electric telescopic rod 6 is started to work to adjust the height of the grinding mechanism , and pressed against the inner wall of the pipe fitting so as to grind the inner wall of pipe fittings of different diameters. A grinding mechanism is provided on the first L-shaped plate 7, and the upper end of the second moving rod 4 is fixedly connected to the second L-shaped plate 8, and the second L-shaped plate 8 is fixedly connected to a rotating mechanism, one end of the rotating mechanism passes through the second L-shaped plate 8 and is fixedly connected to the pipe clamping mechanism, and one end of the front side of the grinding table 1 is fixedly connected to a control panel 32, and one end of the spacing adjustment mechanism, the electric telescopic rod 6, the grinding mechanism, the rotating mechanism and the pipe clamping mechanism are respectively electrically connected to the control panel 32, which is convenient to operate and saves manpower. The device can realize comprehensive grinding of the inner wall of the pipe fitting, with high processing quality, fast processing efficiency, simple operation and labor saving.

[0026] like Figure 2 As shown: the spacing adjustment mechanism includes a first motor 9 fixed at one end of the rectangular strip shell 2, the driving end of the first motor 9 is fixedly connected to a transversely arranged first rotating shaft 10, and one end of the first rotating shaft 10 extends through the rectangular strip shell 2 and is fixedly connected to a transversely arranged bidirectional threaded rod 11, two symmetrically arranged nut blocks 12 are respectively threadedly connected to the bidirectional threaded rod 11, and the upper sides of the two nut blocks 12 are respectively fixedly connected to the first moving rod 3 and the second moving rod 4, the first motor 9 is started to work, the first rotating shaft 10 is driven to rotate, and then the bidirectional threaded rod 11 is driven to rotate, because the bidirectional threaded rod 11 is respectively threadedly connected to the two nut blocks 12, and the axial rotation of the nut block 12 follows the second moving rod 4 and is restricted by the opening 5, therefore, the two nut blocks 12 are forced to move in a similar direction, thereby driving the first moving rod 3 and the second moving rod 4 to move in a similar direction, driving the grinding roller 15 to insert into the pipe fitting; like Figure 2As shown: the inner wall of one end of the rectangular strip housing 2 is rotatably connected to the end of the bidirectional threaded rod 11 away from the first rotating shaft 10 through the first bearing seat, which plays a supporting and stabilizing role in the rotation of the bidirectional threaded rod 11; like Figure 3 As shown: the grinding mechanism includes a second motor 13 fixed on the upper side of the horizontal end of the first L-shaped plate 7, the driving end of the second motor 13 is fixedly connected to a second rotating shaft 14 arranged horizontally, and one end of the second rotating shaft 14 passes through the vertical end of the first L-shaped plate 7 and is fixedly connected to a grinding roller 15. When the second motor 13 is started, the second rotating shaft 14 is driven to rotate, and then the grinding roller 15 is driven to rotate, so as to achieve grinding of the inner wall of the pipe fitting; like Figure 3 As shown: the second rotating shaft 14 and the grinding roller 15 are fixedly connected by bolts in a detachable manner, so as to facilitate the replacement of the grinding roller 15; like Figure 4 As shown: the rotating mechanism includes a third motor 16 fixed on the upper side of the horizontal end of the second L-shaped plate 8, the driving end of the third motor 16 is fixedly connected to a third rotating shaft 17 arranged horizontally, and one end of the third rotating shaft 17 passes through the second L-shaped plate 8 and is fixedly connected to the pipe clamping mechanism. When the third motor 16 is started, the third rotating shaft 17 is driven to rotate, thereby driving the pipe on the clamping disc 19 to rotate; like Figure 4 As shown: a through hole is opened on the side wall of the second L-shaped plate 8, and the third rotating shaft 17 is arranged through the through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the third rotating shaft 17 through a bearing member, so as to facilitate the rotation of the third rotating shaft 17; like Figure 4 and Figure 5As shown: the pipe clamping mechanism includes a fourth motor 18 and a clamping disc 19, the fourth motor 18 is fixedly connected to one end of the rotating mechanism, and the front end of the fourth motor 18 is fixedly connected to the rear center of the clamping disc 19, the driving end of the fourth motor 18 is fixedly connected to a transversely arranged fourth rotating shaft 20, a first cavity 21 is opened at the center of the side wall of the clamping disc 19, and three second cavities 22 are opened on the side wall of the clamping disc 19, and the three second cavities 22 are arranged around the first cavity 21 at equal intervals, one end of the fourth rotating shaft 20 extends through the first cavity 21 and is fixedly connected to a driving bevel gear 23, the inner bottom walls of the three second cavities 22 are rotatably connected to a screw rod 24 through a second bearing seat, and the end of the screw rod 24 away from the second bearing seat is fixedly connected to a driven bevel gear 25 meshing with the driving bevel gear 23, and a threaded block 26 is threadedly connected to the screw rod 24, The front side of the threaded block 26 is fixedly connected with a connecting rod 27, and the front side of the clamping disc 19 is provided with three sliding openings 28 connected with the three second cavities 22, and the connecting rod 27 passes through the sliding opening 28 and is fixedly connected with a clamping plate 29, one end of the metal pipe is placed between the three clamping plates 29, and the fourth motor 18 is started to work, driving the fourth rotating shaft 20 to rotate, and then driving the active bevel gear 23 to rotate, because the active bevel gear 23 is respectively engaged with the three driven bevel gears 25, thereby driving the screw rod 24 to rotate, because the screw rod 24 is threadedly connected with the threaded block 26, and the axial rotation of the threaded block 26 is restricted by the sliding opening 28, therefore, the three threaded blocks 26 are forced to move in the direction close to the active bevel gear 23, thereby driving the three clamping plates 29 to clamp the pipe to achieve fixation, the structural design is ingenious, the fixation is reliable, and the pipes of different diameters can be clamped and fixed, thereby improving the processing range; like Figure 4 As shown: the three clamping plates 29 are all arranged in an arc shape, and the three clamping plates 29 are arranged around the rotation axis of the clamping disc 19 at equal intervals, so as to facilitate clamping of metal pipe fittings; like Figure 1 As shown: four vertically symmetrically arranged legs 30 are fixedly connected to the four corners of the bottom of the grinding table 1 to provide stable support, and a locking universal wheel 31 is fixedly connected to one end of the leg 30 away from the grinding table 1 to facilitate the displacement or positioning of the device.

[0027] The working principle of the present invention is as follows: when the device is used to grind the inner wall of a marine metal pipe fitting, first, one end of the metal pipe fitting is placed between the three clamping plates 29, the fourth motor 18 is started to work, the fourth rotating shaft 20 is driven to rotate, and then the active bevel gear 23 is driven to rotate. Since the active bevel gear 23 is respectively meshed with the three driven bevel gears 25, the screw rod 24 is driven to rotate. Since the screw rod 24 is threadedly connected with the threaded block 26, and the axial rotation of the threaded block 26 is restricted by the sliding mouth 28 by the following connecting rod 27, the three threaded blocks 26 are forced to move in the direction close to the active bevel gear 23, and then the three clamping plates 29 are driven to clamp the pipe fitting to achieve fixation. The structural design is ingenious and the fixation is reliable. Moreover, the pipe fittings of different diameters can be clamped and fixed, thereby improving the processing range. Then, the first motor 9 is started to work, driving the first rotating shaft 10 to rotate, and then driving the bidirectional threaded rod 11 to rotate. Since the bidirectional threaded rod 11 is threadedly connected with the two nut blocks 12 respectively, and the axial rotation of the nut block 12 follows the second moving rod 4 and is restricted by the opening 5, the two nut blocks 12 are forced to move in similar directions, thereby driving the first moving rod 3 and the second moving rod 4 to move in similar directions, driving the grinding roller 15 to insert into the pipe fitting, and then, the electric telescopic rod 6 is started to work, and the height of the grinding roller 15 is adjusted to press against the inner wall of the pipe fitting, so as to perform inner wall grinding processing on pipe fittings of different diameters; Then, the second motor 13 is started to drive the second rotating shaft 14 to rotate, and then the grinding roller 15 is driven to rotate, so as to grind the inner wall of the pipe. At the same time, the third motor 16 is started to drive the third rotating shaft 17 to rotate, and then the pipe on the clamping disc 19 is driven to rotate, thereby achieving comprehensive grinding processing of the inner wall of the pipe, with high processing quality, high processing efficiency, simple operation and labor saving.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding device for producing marine metal pipes, comprising a grinding table (1), characterized in that: The upper side of the grinding table (1) is fixedly connected to a transversely arranged rectangular bar shell (2), and a spacing adjustment mechanism is provided in the rectangular bar shell (2), and the two ends of the spacing adjustment mechanism are respectively fixedly connected to a vertically arranged first moving rod (3) and a second moving rod (4), the upper side of the rectangular bar shell (2) is provided with two symmetrically arranged openings (5), and the first moving rod (3) and the second moving rod (4) are respectively arranged to penetrate the two openings (5), and the upper end of the first moving rod (3) is fixedly connected to a vertically arranged electric telescopic rod (6), and the electric telescopic rod (6) is away from the first moving rod One end of the grinding table (3) is fixedly connected to a first L-shaped plate (7), and a grinding mechanism is provided on the first L-shaped plate (7); the upper end of the second moving rod (4) is fixedly connected to a second L-shaped plate (8), and a rotating mechanism is fixedly connected to the second L-shaped plate (8); one end of the rotating mechanism passes through the second L-shaped plate (8) and is fixedly connected to a pipe clamping mechanism; one end of the front side of the grinding table (1) is fixedly connected to a control panel (32), and one end of the spacing adjustment mechanism, the electric telescopic rod (6), the grinding mechanism, the rotating mechanism and the pipe clamping mechanism are respectively electrically connected to the control panel (32).

2. A grinding device for producing marine metal pipes according to claim 1, characterized in that: The spacing adjustment mechanism comprises a first motor (9) fixed to one end of the rectangular bar shell (2), a driving end of the first motor (9) being fixedly connected to a first rotating shaft (10) arranged transversely, and one end of the first rotating shaft (10) extending through the rectangular bar shell (2) and fixedly connected to a bidirectional threaded rod (11) arranged transversely, two symmetrically arranged nut blocks (12) being respectively threadedly connected to the bidirectional threaded rod (11), and the upper sides of the two nut blocks (12) being respectively fixedly connected to the first moving rod (3) and the second moving rod (4).

3. A grinding device for producing marine metal pipes according to claim 2, characterized in that: The inner wall of one end of the rectangular strip shell (2) is rotatably connected to an end of the bidirectional threaded rod (11) away from the first rotating shaft (10) through a first bearing seat.

4. The grinding equipment for producing marine metal pipes according to claim 1, characterized in that: The grinding mechanism comprises a second motor (13) fixed on the upper side of the horizontal end of the first L-shaped plate (7), a driving end of the second motor (13) is fixedly connected to a second rotating shaft (14) arranged horizontally, and one end of the second rotating shaft (14) passes through the vertical end of the first L-shaped plate (7) and is fixedly connected to a grinding roller (15).

5. The grinding equipment for producing marine metal pipes according to claim 4, characterized in that: The second rotating shaft (14) and the grinding roller (15) are fixedly connected in a detachable bolt connection manner.

6. The grinding equipment for producing marine metal pipes according to claim 1, characterized in that: The rotating mechanism comprises a third motor (16) fixed on the upper side of the transverse end of the second L-shaped plate (8), a driving end of the third motor (16) is fixedly connected to a transversely arranged third rotating shaft (17), and one end of the third rotating shaft (17) passes through the second L-shaped plate (8) and is fixedly connected to the pipe clamping mechanism.

7. The grinding equipment for producing marine metal pipes according to claim 6, characterized in that: A through hole is provided on the side wall of the second L-shaped plate (8), and the third rotating shaft (17) is arranged to pass through the through hole. The inner wall of the through hole is rotatably connected to the outer wall of the third rotating shaft (17) via a bearing member.

8. The grinding equipment for producing marine metal pipes according to claim 1, characterized in that: The pipe clamping mechanism comprises a fourth motor (18) and a clamping disc (19), wherein the fourth motor (18) is fixedly connected to one end of the rotating mechanism, and the front end of the fourth motor (18) is fixedly connected to the rear center of the clamping disc (19), and the driving end of the fourth motor (18) is fixedly connected to a transversely arranged fourth rotating shaft (20), a first cavity (21) is provided at the center of the side wall of the clamping disc (19), and three second cavities (22) are provided on the side wall of the clamping disc (19), and the three second cavities (22) are arranged around the first cavity (21) at equal intervals, and one end of the fourth rotating shaft (20) extends through and extends to A driving bevel gear (23) is fixedly connected in the first cavity (21); inner bottom walls of the three second cavities (22) are rotatably connected to a screw rod (24) through a second bearing seat; an end of the screw rod (24) away from the second bearing seat is fixedly connected to a driven bevel gear (25) meshing with the driving bevel gear (23); a threaded block (26) is threadedly connected to the screw rod (24); a connecting rod (27) is fixedly connected to the front side of the threaded block (26); three sliding openings (28) connected to the three second cavities (22) are opened on the front side of the clamping disc (19); and the connecting rod (27) passes through the sliding opening (28) and is fixedly connected to a clamping plate (29).

9. The grinding equipment for producing marine metal pipes according to claim 8, characterized in that: The three clamping plates (29) are all arranged in an arc shape, and the three clamping plates (29) are arranged at equal intervals around the rotation axis of the clamping disc (19) as the center of the circle.

10. The grinding equipment for producing marine metal pipes according to claim 1, characterized in that: Four vertically symmetrically arranged supporting legs (30) are respectively fixedly connected at the four corners of the bottom of the grinding table (1), and a locking universal wheel (31) is fixedly connected at one end of the supporting leg (30) away from the grinding table (1).

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