Polishing equipment for seamless steel pipe and polishing process thereof

Abstract

The invention relates to the technical field of seamless steel pipe production, and discloses seamless steel pipe polishing equipment and a polishing process thereof.The seamless steel pipe polishing equipment comprises a base, a second supporting frame is fixedly connected to the upper surface of the base, a first supporting plate is fixedly connected to the second supporting frame, and a moving frame is slidably connected to the first supporting plate; an inner wall polishing mechanism is mounted on the upper surface of the moving frame, and an outer wall polishing mechanism is mounted on the upper surface of the moving frame. The output end of a first electric push rod pushes a first connecting rod to move to drive a first rotating rod and a sleeve rod to move, so that a polishing wheel makes contact with the inner wall of a seamless steel pipe, the output end of a first sliding rail pushes a second connecting plate to drive a connecting frame to move, and then a polisher makes contact with the outer wall of the seamless steel pipe; the outer wall is polished by starting the polisher, the first rotating rod is driven by the output end of the motor to enable the polishing wheel to rotate, then the inner wall is polished, the effect of polishing the interior and the exterior at the same time is achieved, and then the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of seamless steel pipe production, in particular to a seamless steel pipe polishing device and a polishing process thereof. Background Art

[0002] Seamless steel pipes are widely used in petrochemical, boiler manufacturing, building structure, automobile industry and other fields due to their superior mechanical properties and pressure resistance. However, in the production and processing of seamless steel pipes, the quality of their inner and outer surfaces is crucial to product performance. The surface of seamless steel pipes that have not been polished may have defects such as scale, burrs, and unevenness, which will not only affect the appearance of the steel pipe, but also reduce its corrosion resistance and subsequent processing performance.

[0003] The existing seamless steel pipe polishing process and equipment mainly treat the outer surface of the steel pipe, and the inner wall polishing treatment is less, and most polishing methods use a single mechanical polishing, which has the following shortcomings: Low polishing efficiency: Traditional equipment is usually unable to polish the inner and outer walls of the steel pipe at the same time, and needs to be completed in steps, which takes a long time.

[0004] Inadequate cleaning and cooling: If the high temperature and debris generated during the polishing process are not removed in time, it may affect the polishing effect and even cause equipment damage or reduced processing quality.

[0005] Low degree of automation: Most existing equipment needs to rely on manual adjustment and operation, the labor intensity of workers is high, and the polishing accuracy is not high.

[0006] Difficulty in polishing the inner wall: Since the inner wall space of the seamless steel pipe is narrow and invisible, it is difficult to polish the inner wall evenly. The existing technology is difficult to complete efficient and uniform inner wall polishing without damaging the steel pipe.

[0007] Therefore, there is an urgent need for an equipment and process that can efficiently and automatically polish the inner and outer walls of seamless steel pipes at the same time and has good cleaning and cooling functions, so as to overcome the defects of the existing technology and improve the processing quality and production efficiency of seamless steel pipes. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a polishing device for a seamless steel pipe and a polishing process thereof, which solve the problems of low polishing efficiency of the inner and outer walls of seamless steel pipes, insufficient automation, and insufficient cleaning and cooling in the prior art.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a polishing device for a seamless steel pipe, comprising a base, a second support frame is fixedly connected to the upper surface of the base, a first support plate is fixedly connected to the second support frame, a mobile frame is slidably connected to the first support plate, an inner wall polishing mechanism is installed on the upper surface of the mobile frame, an outer wall polishing mechanism is installed on the upper surface of the mobile frame, a cleaning mechanism is installed on the outer walls of the inner wall polishing mechanism and the outer wall polishing mechanism, a cooling mechanism is installed on the outer walls of the inner wall polishing mechanism and the outer wall polishing mechanism, and a limiting mechanism is installed on the upper surface of the second support frame: The inner wall polishing mechanism includes a first connecting plate, the lower surface of the first connecting plate is fixedly connected to the upper surface of the movable frame, the outer wall of the first connecting plate is fixedly connected to a first fixed block, the interior of the first fixed block is fixedly connected to a first electric push rod, the output end of the first electric push rod is fixedly connected to a first connecting rod, the interior of the first connecting rod is fixedly connected to a motor, the output end of the motor is fixedly connected to a first rotating rod, the outer wall of the first rotating rod is rotatably connected to the first connecting rod, and one end of the first rotating rod is fixedly connected to a polishing wheel.

[0010] Preferably, the outer wall of the first connecting rod is fixedly connected to a sliding block, the sliding block is slidably connected to the inside of the movable frame and the first connecting plate, the outer wall of the first rotating rod is rotatably connected to a sleeve rod, one end of the sleeve rod is fixedly connected to the outer wall of the first connecting rod.

[0011] Preferably, the outer wall polishing mechanism includes a fixed seat, the lower surface of the fixed seat is fixedly connected to the movable frame, the upper surface of the fixed seat is fixedly connected to a first slide rail, the outer wall of the first slide rail is slidably connected to a connecting frame, a polisher is installed inside the connecting frame, a second electric push rod is fixedly connected to the inside of the fixed seat, the output end of the second electric push rod is fixedly connected to a second connecting plate, and the second connecting plate is fixedly connected to the lower surface of the connecting frame.

[0012] Preferably, the cleaning mechanism includes a fixing ring, the inner wall of the fixing ring is fixedly connected to the outer wall of the sleeve rod, the interior of the fixing ring is fixedly connected to a first air pipe, one end of the first air pipe is fixedly connected to a first air knife, the inner wall of the first air knife is fixedly connected to the outer wall of the sleeve rod, one end of the first air pipe is fixedly connected to a cylinder, the lower surface of the cylinder is fixedly connected to the upper surface of the base, the output end of the cylinder is fixedly connected to a second air pipe, one end of the second air pipe is fixedly connected to a second air knife, and the outer wall of the second air knife is fixedly connected to the outer wall of the connecting frame.

[0013] Preferably, the cooling mechanism includes a connecting pipe, one end of the connecting pipe is fixedly connected to a water pump, the lower surface of the water pump is fixedly connected to the upper surface of the base, the output end of the water pump is fixedly connected to a second water pipe, the outer wall of the second water pipe is fixedly connected in a fixing ring, one end of the second water pipe is fixedly connected to a spray rack, the outer wall of the spray rack is fixedly connected to a second rotating rod, the lower surface of the second rotating rod is fixedly connected to the outer wall of the sleeve rod, the output end of the water pump is fixedly connected to the first water pipe, the outer wall of the first water pipe is fixedly connected to a spray head, and the spray head is fixedly connected to the inside of the connecting rack.

[0014] Preferably, the limiting mechanism includes a fixed frame, the lower surface of the fixed frame is fixedly connected to the upper surface of the second support frame, the interior of the fixed frame is fixedly connected to a first hydraulic rod, the output end of the first hydraulic rod is fixedly connected to a second connecting rod, and the lower surface of the second connecting rod is fixedly connected to a limiting wheel.

[0015] Preferably, the outer wall of the first support plate is fixedly connected to the second fixed block, the interior of the second fixed block is fixedly connected to the third hydraulic rod, the output end of the third hydraulic rod is fixedly connected to the third connecting plate, the outer wall of the third connecting plate is fixedly connected to the outer wall of the mobile frame, the interior of the mobile frame is slidably connected to the second slide rail, and the second slide rail is fixedly connected to the upper surface of the first support plate.

[0016] Preferably, the upper surface of the base is fixedly connected to a water tank, a filter plate is provided inside the water tank, the outer wall of the water tank is fixedly connected to a first support frame, the lower surface of the first support frame is fixedly connected to the upper surface of the base, the upper surface of the first support frame is rotatably connected to a second support roller, the interior of the first support frame is fixedly connected to a second hydraulic rod, the output end of the second hydraulic rod is fixedly connected to a connecting block, the outer wall of the connecting block is rotatably connected to the first support roller, the lower surface of the water tank is fixedly connected to a limiting rod, and the upper surface of the water tank is fixedly connected to a first baffle.

[0017] Preferably, a second baffle is fixedly connected to the lower surface of the base, and the outer wall of the second baffle is rotatably connected to a limiting roller. A second storage rack is provided on one side of the limiting roller, and the lower surface of the second storage rack is fixedly connected to the upper surface of the base, and the upper surface of the base is fixedly connected to a third slide rail, and the outer wall of the third slide rail is slidably connected to a sliding seat, and the interior of the sliding seat is fixedly connected to a fourth hydraulic rod, and the fourth hydraulic rod drives the output end to be fixedly connected to a second support plate.

[0018] A polishing process for a seamless steel pipe comprises the following steps; S1, placing the seamless steel pipe on the second storage rack, and the seamless steel pipe falls onto the limiting roller, and then driven by the output end of the fourth hydraulic rod to slide on the third slide rail, so that the seamless steel pipe slides on the limiting roller, and then moves to the first support roller and the second support roller, and the output end of the third hydraulic rod drives the third connecting plate to move, so that the moving rack slides on the second slide rail, so that the polishing wheel and the polisher are close to the seamless steel pipe; S2, the output end of the first hydraulic rod drives the second connecting rod to move, so that the limiting wheel and the seamless steel pipe are moved, so that the seamless steel pipe is limited by the first support roller, the second support roller and the limiting wheel; S3, insert the polishing wheel into the seamless steel pipe through movement, and then push the first connecting rod to move through the output end of the first electric push rod to drive the first rotating rod and the sleeve rod to move, so that the polishing wheel contacts the inner wall of the seamless steel pipe, and then push the second connecting plate through the output end of the first slide rail to drive the connecting frame to move, so that the polisher contacts the outer wall of the seamless steel pipe, and then polish the outer wall by starting the polisher, and drive the first rotating rod through the output end of the motor to rotate the polishing wheel, so as to polish the inner wall; S4, during polishing, the cooling water in the water tank is pumped out through the connecting pipe by starting the water pump, and is transported to the first water pipe and the second water pipe, so as to be sprayed onto the polishing surface through the spray head and the spray rack, and then the gas is transported to the first gas pipe and the second gas pipe by starting the gas cylinder, so that the gas is sprayed through the first gas knife and the second gas knife, and then the debris and water generated by polishing and cooling are blown off by the high-pressure gas, and then fall into the water tank and are filtered through the filter plate; S5. After polishing is completed, the first hydraulic rod drives the second connecting rod and the limiting wheel to move to release the limit, and then the output end of the second hydraulic rod drives the connecting block to move the first supporting roller, thereby lifting one side of the seamless steel pipe, so that the seamless steel pipe falls from the second supporting roller and falls onto the first storage rack through the limiting rod, and then the seamless steel pipe is collected.

[0019] The present invention provides a polishing device for a seamless steel pipe and a polishing process thereof, which have the following beneficial effects: 1. The present invention drives the first connecting rod to move through the output end of the first electric push rod, driving the first rotating rod and the sleeve rod to move, so that the polishing wheel contacts the inner wall of the seamless steel pipe, and then drives the second connecting plate through the output end of the first slide rail to drive the connecting frame to move, so that the polisher contacts the outer wall of the seamless steel pipe, and the outer wall is polished by starting the polisher, and the first rotating rod is driven by the output end of the motor to rotate the polishing wheel, and then the inner wall is polished, so as to achieve the effect of polishing the inside and the outside at the same time, thereby improving the processing efficiency.

[0020] 2. The present invention starts the water pump during polishing to extract the cooling water inside the water tank through the connecting pipe and transports it to the first water pipe and the second water pipe, so that the cooling water is sprayed onto the polishing surface through the spray head and the spray rack, thereby achieving the effect of cooling the polishing part and achieving the effect of dust prevention.

[0021] 3. The present invention starts the cylinder to transport gas to the first gas pipe and the second gas pipe, and then the gas is ejected through the first air knife and the second air knife, and then the debris and water generated by polishing and cooling are blown off by the high-pressure gas, and then fall into the water tank, and are filtered through the filter plate, thereby achieving the effect of cleaning the seamless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 is a schematic diagram of a first gas transmission pipe of the present invention; Figure 4 is a cross-sectional view of a first connecting rod of the present invention; Figure 5 It is a schematic diagram of a mobile frame of the present invention; Figure 6 It is a schematic diagram of a water tank of the present invention; Figure 7 Schematic diagram of the fixing frame of the present invention Figure 8 It is a schematic diagram of the second baffle of the present invention.

[0023] Among them, 1. base; 2. first storage rack; 3. water tank; 4. inner wall polishing mechanism; 401. first connecting plate; 402. first fixed block; 403. first electric push rod; 404. sliding block; 405. motor; 406. first connecting rod; 407. first rotating rod; 408. sleeve rod; 409. polishing wheel; 5. cleaning mechanism; 501. fixing ring; 502. cylinder; 503. first air pipe; 504. first air knife; 505. second air pipe; 506. second air knife; 6. cooling mechanism; 601. first water pipe; 602. spray head; 603. water pump; 604. connecting pipe; 605. spray rack; 606. second water pipe; 607. second rotating rod; 7. outer wall polishing mechanism; 701. polisher; 702. second connecting Connecting plate; 703, second electric push rod; 704, connecting frame; 705, first slide rail; 706, fixed seat; 8, limiting mechanism; 801, fixed frame; 802, first hydraulic rod; 803, second connecting rod; 804, limiting wheel; 9, first baffle; 10, second storage rack; 11, first support roller; 12, second support roller; 13, limiting rod; 14, first support frame; 15, second hydraulic rod; 16, moving frame; 17, first support plate; 18, second slide rail; 19, second fixed block; 20, third hydraulic rod; 21, third connecting plate; 22, filter plate; 23, second support frame; 24, limiting roller; 25, second support plate; 26, second baffle; 27, fourth hydraulic rod; 28, sliding seat; 29, third slide rail; 30, connecting block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Please see attached Figure 1-8The embodiment of the present invention provides a polishing device for a seamless steel pipe, comprising a base 1, a second support frame 23 is fixedly connected to the upper surface of the base 1, a first support plate 17 is fixedly connected to the second support frame 23, a moving frame 16 is slidably connected to the first support plate 17, an inner wall polishing mechanism 4 is installed on the upper surface of the moving frame 16; the inner wall polishing mechanism 4 comprises a first connecting plate 401, a lower surface of the first connecting plate 401 is fixedly connected to the upper surface of the moving frame 16, a first fixing block 402 is fixedly connected to the outer wall of the first connecting plate 401, a first electric push rod 403 is fixedly connected to the interior of the first fixing block 402, and the first electric push rod 403 The output end of the first connecting rod 406 is fixedly connected to the first connecting rod 406, the interior of the first connecting rod 406 is fixedly connected to the motor 405, the output end of the motor 405 is fixedly connected to the first rotating rod 407, the outer wall of the first rotating rod 407 is rotatably connected to the first connecting rod 406, and one end of the first rotating rod 407 is fixedly connected to the polishing wheel 409; the outer wall of the first connecting rod 406 is fixedly connected to the sliding block 404, the sliding block 404 is slidably connected to the inside of the moving frame 16 and the first connecting plate 401, the outer wall of the first rotating rod 407 is rotatably connected to the sleeve rod 408, and one end of the sleeve rod 408 is fixedly connected to the outer wall of the first connecting rod 406 Specifically, the polishing wheel 409 is inserted into the seamless steel pipe through the movement, and then the first connecting rod 406 is pushed by the output end of the first electric push rod 403 to move the first rotating rod 407 and the sleeve rod 408 to move, so that the polishing wheel 409 contacts the inner wall of the seamless steel pipe, and the first rotating rod 407 is driven by the output end of the motor 405 to rotate the polishing wheel 409, thereby polishing the inner wall, thereby achieving the effect of polishing the inner wall; The outer wall polishing mechanism 7 is installed on the upper surface of the movable frame 16; the outer wall polishing mechanism 7 includes a fixed seat 706, the lower surface of the fixed seat 706 is fixedly connected to the movable frame 16, the upper surface of the fixed seat 706 is fixedly connected to the first slide rail 705, the outer wall of the first slide rail 705 is slidably connected to the connecting frame 704, the interior of the connecting frame 704 is installed with a polisher 701, the interior of the fixed seat 706 is fixedly connected to the second electric push rod 703, the output end of the second electric push rod 703 is fixedly connected to the second connecting plate 702, and the second connecting plate 702 is fixedly connected to the lower surface of the connecting frame 704 Specifically, the output end of the first slide rail 705 pushes the second connecting plate 702 to drive the connecting frame 704 to move, and then adjusts the position of the polisher 701, so that the polisher 701 contacts the outer wall driven by the seamless steel pipe, and the outer wall is polished by starting the polisher 701; The outer walls of the inner wall polishing mechanism 4 and the outer wall polishing mechanism 7 are both installed with a cleaning mechanism 5; the cleaning mechanism 5 includes a fixed ring 501, the inner wall of the fixed ring 501 is fixedly connected to the outer wall of the sleeve rod 408, the interior of the fixed ring 501 is fixedly connected to a first air pipe 503, one end of the first air pipe 503 is fixedly connected to a first air knife 504, the inner wall of the first air knife 504 is fixedly connected to the outer wall of the sleeve rod 408, one end of the first air pipe 503 is fixedly connected to a cylinder 502, the lower surface of the cylinder 502 is fixedly connected to the upper surface of the base 1, the output end of the cylinder 502 is fixedly connected to a second air pipe 505, one end of the second air pipe 505 is fixedly connected to a second air knife 506, and the outer wall of the second air knife 506 is fixedly connected to the outer wall of the connecting frame 704 Specifically, the gas is delivered to the first gas delivery pipe 503 and the second gas delivery pipe 505 by starting the gas cylinder 502, and then the gas is ejected through the first gas knife 504 and the second gas knife 506, and then the debris and water generated by polishing and cooling are blown off by the high-pressure gas, and then fall into the water tank 3; The outer walls of the inner wall polishing mechanism 4 and the outer wall polishing mechanism 7 are both installed with a cooling mechanism 6; the cooling mechanism 6 includes a connecting pipe 604, one end of the connecting pipe 604 is fixedly connected to a water pump 603, the lower surface of the water pump 603 is fixedly connected to the upper surface of the base 1, the output end of the water pump 603 is fixedly connected to a second water pipe 606, the outer wall of the second water pipe 606 is fixedly connected to the fixing ring 501, one end of the second water pipe 606 is fixedly connected to a spray rack 605, the outer wall of the spray rack 605 is fixedly connected to a second rotating rod 607, the lower surface of the second rotating rod 607 is fixedly connected to the outer wall of the sleeve rod 408, the output end of the water pump 603 is fixedly connected to the first water pipe 601, the outer wall of the first water pipe 601 is fixedly connected to a spray head 602, and the spray head 602 is fixedly connected to the inside of the connecting frame 704; Specifically, the cooling water in the water tank 3 is pumped out through the connecting pipe 604 by starting the water pump 603, and is transported to the first water delivery pipe 601 and the second water delivery pipe 606, so as to be sprayed onto the polishing surface through the spray head 602 and the spray rack 605, thereby cooling the polishing position; The upper surface of the second support frame 23 is provided with a limiting mechanism 8: the limiting mechanism 8 comprises a fixing frame 801, the lower surface of the fixing frame 801 is fixedly connected to the upper surface of the second support frame 23, the interior of the fixing frame 801 is fixedly connected with a first hydraulic rod 802, the output end of the first hydraulic rod 802 is fixedly connected with a second connecting rod 803, and the lower surface of the second connecting rod 803 is fixedly connected with a limiting wheel 804; Specifically, the output end of the first hydraulic rod 802 drives the second connecting rod 803 to move, thereby moving the limiting wheel 804 and the seamless steel pipe, so that the seamless steel pipe is limited by the first supporting roller 11, the second supporting roller 12 and the limiting wheel 804.

[0026] The outer wall of the first support plate 17 is fixedly connected to a second fixed block 19, the interior of the second fixed block 19 is fixedly connected to a third hydraulic rod 20, the output end of the third hydraulic rod 20 is fixedly connected to a third connecting plate 21, the outer wall of the third connecting plate 21 is fixedly connected to the outer wall of the mobile frame 16, the interior of the mobile frame 16 is slidably connected to a second slide rail 18, and the second slide rail 18 is fixedly connected to the upper surface of the first support plate 17; Specifically, the output end of the third hydraulic rod 20 drives the third connecting plate 21 to move, so that the moving frame 16 slides on the second slide rail 18, so that the polishing wheel 409 and the polisher 701 are close to the seamless steel pipe.

[0027] The upper surface of the base 1 is fixedly connected with a water tank 3, a filter plate 22 is arranged inside the water tank 3, a first support frame 14 is fixedly connected to the outer wall of the water tank 3, a lower surface of the first support frame 14 is fixedly connected to the upper surface of the base 1, a second support roller 12 is rotatably connected to the upper surface of the first support frame 14, a second hydraulic rod 15 is fixedly connected inside the first support frame 14, a connecting block 30 is fixedly connected to the output end of the second hydraulic rod 15, a first supporting roller 11 is rotatably connected to the outer wall of the connecting block 30, a limiting rod 13 is fixedly connected to the lower surface of the water tank 3, and a first baffle 9 is fixedly connected to the upper surface of the water tank 3; Specifically, after polishing is completed, the first hydraulic rod 802 drives the second connecting rod 803 and the limiting wheel 804 to move to release the limit, and then the output end of the second hydraulic rod 15 drives the connecting block 30 to move the first support roller 11, thereby lifting one side of the seamless steel pipe, so that the seamless steel pipe falls from the second support roller 12 and falls onto the first storage rack 2 through the limiting rod 13, and then the seamless steel pipe is collected, and the polishing debris can be blocked by the first baffle 9 to fall into the water tank 3.

[0028] A second baffle 26 is fixedly connected to the lower surface of the base 1, and the outer wall of the second baffle 26 is rotatably connected to a limiting roller 24, a second storage rack 10 is provided on one side of the limiting roller 24, and the lower surface of the second storage rack 10 is fixedly connected to the upper surface of the base 1, and a third slide rail 29 is fixedly connected to the upper surface of the base 1, and a sliding seat 28 is slidably connected to the outer wall of the third slide rail 29, and a fourth hydraulic rod 27 is fixedly connected to the interior of the sliding seat 28, and the fourth hydraulic rod 27 drives the output end to be fixedly connected to the second support plate 25; Specifically, the seamless steel pipe is placed on the second storage rack 10, and the seamless steel pipe falls onto the limiting roller 24, and the output end of the fourth hydraulic rod 27 drives 25 to move, thereby lifting the seamless steel pipe, and sliding on the third slide rail 29 through the sliding seat 28, so that the seamless steel pipe slides on the limiting roller 24, and then moves to the first support roller 11 and the second support roller 12, and the seamless steel pipe can be carried out through the second baffle 26.

[0029] Working principle: first, the seamless steel pipe is placed on the second storage rack 10, and the seamless steel pipe falls onto the limiting roller 24, and then the output end of the fourth hydraulic rod 27 drives 25 to move, and then the seamless steel pipe is lifted, and the sliding seat 28 slides on the third slide rail 29, so that the seamless steel pipe slides on the limiting roller 24, and then moves to the first support roller 11 and the second support roller 12, and the output end of the third hydraulic rod 20 drives the third connecting plate 21 to move, so that the moving rack 16 slides on the second slide rail 18, so that the polishing wheel 409 and the polisher 701 are close to the seamless steel pipe, and then the first hydraulic rod The output end of 802 drives the second connecting rod 803 to move, so that the limiting wheel 804 and the seamless steel pipe are moved, so that the seamless steel pipe is limited by the first support roller 11, the second support roller 12 and the limiting wheel 804, and the polishing wheel 409 is inserted into the seamless steel pipe through movement, and then the first connecting rod 406 is pushed by the output end of the first electric push rod 403 to move and drive the first rotating rod 407 and the sleeve rod 408 to move, so that the polishing wheel 409 contacts the inner wall of the seamless steel pipe, and then the second connecting plate 702 is pushed by the output end of the first slide rail 705 to drive the connecting frame 704 to move, so as to The polisher 701 is brought into contact with the outer wall driven by the seamless steel pipe, and the outer wall is polished by starting the polisher 701, and the first rotating rod 407 is driven by the output end of the motor 405 to rotate the polishing wheel 409, and then the inner wall is polished. During polishing, the cooling water inside the water tank 3 is pumped out through the connecting pipe 604 by starting the water pump 603, and is transported to the first water delivery pipe 601 and the second water delivery pipe 606, so that it is sprayed onto the polishing surface through the spray head 602 and the spray rack 605, and the gas is transported to the first gas delivery pipe 503 and the second gas delivery pipe 505 by starting the cylinder 502, so that the gas The body is ejected through the first air knife 504 and the second air knife 506, and then the debris and water generated by polishing and cooling are blown off by high-pressure gas, and then fall into the water tank 3, and are filtered through the filter plate 22. After polishing is completed, the second connecting rod 803 and the limiting wheel 804 are driven by the first hydraulic rod 802 to move and release the limit, and the connecting block 30 is driven by the output end of the second hydraulic rod 15 to move the first support roller 11, and then one side of the seamless steel pipe is lifted, so that the seamless steel pipe falls from the second support roller 12 and falls onto the first storage rack 2 through the limiting rod 13, and then the seamless steel pipe is collected.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for seamless steel pipes, comprising a base (1), characterized in that: A second support frame (23) is fixedly connected to the upper surface of the base (1), a first support plate (17) is fixedly connected to the second support frame (23), a movable frame (16) is slidably connected to the first support plate (17), an inner wall polishing mechanism (4) is mounted on the upper surface of the movable frame (16), an outer wall polishing mechanism (7) is mounted on the upper surface of the movable frame (16), a cleaning mechanism (5) is mounted on the outer walls of the inner wall polishing mechanism (4) and the outer wall polishing mechanism (7), a cooling mechanism (6) is mounted on the outer walls of the inner wall polishing mechanism (4) and the outer wall polishing mechanism (7), and a limiting mechanism (8) is mounted on the upper surface of the second support frame (23): The inner wall polishing mechanism (4) comprises a first connecting plate (401), the lower surface of the first connecting plate (401) is fixedly connected to the upper surface of the moving frame (16), the outer wall of the first connecting plate (401) is fixedly connected to a first fixing block (402), the interior of the first fixing block (402) is fixedly connected to a first electric push rod (403), the output end of the first electric push rod (403) is fixedly connected to a first connecting rod (406), the interior of the first connecting rod (406) is fixedly connected to a motor (405), the output end of the motor (405) is fixedly connected to a first rotating rod (407), the outer wall of the first rotating rod (407) is rotatably connected inside the first connecting rod (406), and one end of the first rotating rod (407) is fixedly connected to a polishing wheel (409).

2. A polishing device for seamless steel pipe according to claim 1, characterized in that: The outer wall of the first connecting rod (406) is fixedly connected to a sliding block (404), and the sliding block (404) is slidably connected inside the moving frame (16) and the first connecting plate (401). The outer wall of the first rotating rod (407) is rotatably connected to a sleeve rod (408), and one end of the sleeve rod (408) is fixedly connected to the outer wall of the first connecting rod (406).

3. The polishing device for seamless steel pipe according to claim 1, characterized in that: The outer wall polishing mechanism (7) comprises a fixed seat (706), the lower surface of the fixed seat (706) is fixedly connected to the movable frame (16), the upper surface of the fixed seat (706) is fixedly connected to a first slide rail (705), the outer wall of the first slide rail (705) is slidably connected to a connecting frame (704), a polisher (701) is installed inside the connecting frame (704), a second electric push rod (703) is fixedly connected inside the fixed seat (706), an output end of the second electric push rod (703) is fixedly connected to a second connecting plate (702), and the second connecting plate (702) is fixedly connected to the lower surface of the connecting frame (704).

4. The polishing device for seamless steel pipe according to claim 1, characterized in that: The cleaning mechanism (5) comprises a fixing ring (501), the inner wall of the fixing ring (501) being fixedly connected to the outer wall of the sleeve rod (408), the interior of the fixing ring (501) being fixedly connected to a first air pipe (503), one end of the first air pipe (503) being fixedly connected to a first air knife (504), the inner wall of the first air knife (504) being fixedly connected to the outer wall of the sleeve rod (408), one end of the first air pipe (503) being fixedly connected to a cylinder (502), the lower surface of the cylinder (502) being fixedly connected to the upper surface of the base (1), the output end of the cylinder (502) being fixedly connected to a second air pipe (505), one end of the second air pipe (505) being fixedly connected to a second air knife (506), the outer wall of the second air knife (506) being fixedly connected to the outer wall of the connecting frame (704).

5. The polishing device for seamless steel pipe according to claim 1, characterized in that: The cooling mechanism (6) comprises a connecting pipe (604), one end of which is fixedly connected to a water pump (603), the lower surface of which is fixedly connected to the upper surface of the base (1), the output end of which is fixedly connected to a second water pipe (606), the outer wall of which is fixedly connected to the inside of a fixing ring (501), one end of which is fixedly connected to a spray rack (605), the outer wall of which is fixedly connected to a second rotating rod (607), the lower surface of which is fixedly connected to the outer wall of a sleeve rod (408), the output end of which is fixedly connected to a first water pipe (601), the outer wall of which is fixedly connected to a spray head (602), the spray head (602) being fixedly connected to the inside of the connecting rack (704).

6. The polishing device for seamless steel pipe according to claim 1, characterized in that: The limiting mechanism (8) comprises a fixing frame (801), the lower surface of the fixing frame (801) being fixedly connected to the upper surface of the second support frame (23), the interior of the fixing frame (801) being fixedly connected to a first hydraulic rod (802), the output end of the first hydraulic rod (802) being fixedly connected to a second connecting rod (803), and the lower surface of the second connecting rod (803) being fixedly connected to a limiting wheel (804).

7. The polishing device for seamless steel pipe according to claim 1, characterized in that: The outer wall of the first support plate (17) is fixedly connected to a second fixed block (19), the interior of the second fixed block (19) is fixedly connected to a third hydraulic rod (20), the output end of the third hydraulic rod (20) is fixedly connected to a third connecting plate (21), the outer wall of the third connecting plate (21) is fixedly connected to the outer wall of the moving frame (16), the interior of the moving frame (16) is slidably connected to a second slide rail (18), and the second slide rail (18) is fixedly connected to the upper surface of the first support plate (17).

8. The polishing device for seamless steel pipe according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a water tank (3), a filter plate (22) is arranged inside the water tank (3), the outer wall of the water tank (3) is fixedly connected to a first support frame (14), the lower surface of the first support frame (14) is fixedly connected to the upper surface of the base (1), the upper surface of the first support frame (14) is rotatably connected to a second support roller (12), the inside of the first support frame (14) is fixedly connected to a second hydraulic rod (15), the output end of the second hydraulic rod (15) is fixedly connected to a connecting block (30), the outer wall of the connecting block (30) is rotatably connected to a first support roller (11), the lower surface of the water tank (3) is fixedly connected to a limit rod (13), and the upper surface of the water tank (3) is fixedly connected to a first baffle (9).

9. The polishing device for seamless steel pipe according to claim 1, characterized in that: A second baffle (26) is fixedly connected to the lower surface of the base (1); an outer wall of the second baffle (26) is rotatably connected to a limiting roller (24); a second storage rack (10) is provided on one side of the limiting roller (24); a lower surface of the second storage rack (10) is fixedly connected to the upper surface of the base (1); a third slide rail (29) is fixedly connected to the upper surface of the base (1); an outer wall of the third slide rail (29) is slidably connected to a sliding seat (28); a fourth hydraulic rod (27) is fixedly connected to the interior of the sliding seat (28); the fourth hydraulic rod (27) drives an output end fixedly connected to a second support plate (25).

10. A polishing process for a seamless steel pipe, according to a polishing device for a seamless steel pipe according to any one of claims 1 to 9, characterized in that: The steps include: S1, placing the seamless steel pipe on the second storage rack (10), and the seamless steel pipe falls onto the limiting roller (24), and then driving the second support plate (25) to move through the output end of the fourth hydraulic rod (27), thereby lifting the seamless steel pipe, and sliding on the third slide rail (29) through the sliding seat (28), so that the seamless steel pipe slides on the limiting roller (24), and then moves to the first support roller (11) and the second support roller (12), and driving the third connecting plate (21) to move through the output end of the third hydraulic rod (20), so that the movable rack (16) slides on the second slide rail (18), so that the polishing wheel (409) and the polisher (701) are close to the seamless steel pipe; S2, driving the second connecting rod (803) to move through the output end of the first hydraulic rod (802), thereby moving the limiting wheel (804) and the seamless steel pipe, thereby limiting the seamless steel pipe through the first supporting roller (11), the second supporting roller (12) and the limiting wheel (804); S3, inserting the polishing wheel (409) into the seamless steel pipe through movement, pushing the first connecting rod (406) through the output end of the first electric push rod (403) to move the first rotating rod (407) and the sleeve rod (408) to move, so that the polishing wheel (409) contacts the inner wall of the seamless steel pipe, and then pushing the second connecting plate (702) through the output end of the first slide rail (705) to drive the connecting frame (704) to move, so that the polisher (701) contacts the outer wall of the seamless steel pipe, and polishing the outer wall by starting the polisher (701), and driving the first rotating rod (407) through the output end of the motor (405) to rotate the polishing wheel (409), so as to polish the inner wall; S4, during polishing, the cooling water in the water tank (3) is pumped out through the connecting pipe (604) by starting the water pump (603) and transported to the first water pipe (601) and the second water pipe (606), and then sprayed onto the polishing surface through the spray head (602) and the spray rack (605), and then the gas is transported to the first gas pipe (503) and the second gas pipe (505) by starting the cylinder (502), and then the gas is sprayed out through the first gas knife (504) and the second gas knife (506), and then the debris and water generated by polishing and cooling are blown off by the high-pressure gas, and then fall into the water tank (3), and filtered through the filter plate (22); S5. After polishing is completed, the first hydraulic rod (802) drives the second connecting rod (803) and the limiting wheel (804) to move and release the limiting position, and then the output end of the second hydraulic rod (15) drives the connecting block (30) to move the first supporting roller (11), thereby lifting one side of the seamless steel pipe, causing the seamless steel pipe to fall from the second supporting roller (12) and fall onto the first storage rack (2) through the limiting rod (13), thereby collecting the seamless steel pipe.

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