A seamless steel pipe surface treatment device

Abstract

This utility model relates to a surface treatment device for seamless steel pipes, including a frame and a clamp. The clamp is slidably mounted on the frame and driven by a first motor mounted on the frame. A support plate opposite to the clamp is mounted on the frame. A rotating disk, driven by a second motor mounted on the support plate, is rotatably mounted on the support plate. A central shaft, aligned with the center of the clamp, is fixedly connected to the center of the rotating disk. A plurality of inner polishing blocks, arranged in a ring along the central shaft with their contact surfaces facing outwards, are mounted at the end of the central shaft. A plurality of support arms, arranged in a ring along the central shaft, are fixedly connected to the rotating disk. Outer polishing blocks, with their contact surfaces facing inwards, are mounted at the ends of the support arms. This surface treatment device for seamless steel pipes can simultaneously treat the inner and outer walls of seamless steel pipes, improving operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, and in particular to a surface treatment device for seamless steel pipes. Background Technology

[0002] Surface treatment is a post-processing technique for seamless steel pipes after they have been formed. It includes surface treatment methods that remove the oxide layer and stains formed on the surface of the seamless steel pipe by polishing and grinding. In the existing technology, the outer wall of the seamless steel pipe is generally treated by sanding belts or grinding wheels, but there is no function to treat the inner wall of the seamless steel pipe in the same process. It requires two separate surface treatment processes for the outer and inner walls of the seamless steel pipe, which is inefficient.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This utility model proposes a seamless steel pipe surface treatment device, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A surface treatment device for seamless steel pipes includes a frame and a clamp. The clamp is slidably mounted on the frame and drivenly connected to a first motor mounted on the frame. A support plate opposite to the clamp is mounted on the frame. A rotating disk drivenly connected to a second motor mounted on the support plate is rotatably mounted on the support plate. A central shaft aligned with the center of the clamp is fixedly connected to the center of the rotating disk. A plurality of inner polishing blocks arranged in a ring along the central shaft with their contact surfaces facing outward are mounted at the end of the central shaft. A plurality of support arms arranged in a ring along the central shaft are fixedly connected to the rotating disk. Outer polishing blocks with their contact surfaces facing inward are mounted at the ends of the support arms.

[0007] Preferably, the clamp includes a movable plate, a fixed half-hoop, and a movable half-hoop. The frame is provided with two linear guide rails. The movable plate is fixedly connected to the sliding seat of the linear guide rails. A transmission screw screw, which is screwed to the movable plate and connected to the first motor, is rotatably provided on the frame. The fixed half-hoop is fixedly connected to the movable plate. The movable half-hoop is hinged to the end of the fixed half-hoop, and the free end of the movable half-hoop is fastened to the fixed half-hoop by bolts.

[0008] Preferably, the rotating disk is rotatably mounted on the support plate via a slewing bearing, and the output shaft of the second motor passes through the slewing bearing and is fixedly connected to the rotating disk.

[0009] Preferably, the movable plate is provided with a dustproof cylinder whose axis is aligned with the central axis and surrounds the outside of the fixed half-hoop and the movable half-hoop. The dustproof cylinder is composed of a fixed half-hoop and a movable half-hoop. The end of the fixed half-hoop is fixedly connected to the movable plate, and the movable half-hoop is hinged to the end of the fixed half-hoop. The free end of the movable half-hoop is fastened to the fixed half-hoop by bolts. The movable plate is provided with a first row of waste outlets and a second row of waste outlets that communicate with the dustproof cylinder and the fixed half-hoop respectively. A funnel-shaped collection hopper covering the first row of waste outlets and the second row of waste outlets is fixedly connected to the movable plate.

[0010] Preferably, a plurality of mounting brackets are fixedly connected to the end of the central shaft, and a plurality of inner support rods parallel to the radial direction of the central shaft are passed through the mounting brackets. An inner mounting frame is fixedly connected to the end of each inner support rod, and an inner polishing block is fixedly disposed within the inner mounting frame. A first spring is sleeved on the inner support rod between the mounting bracket and the inner mounting frame. A plurality of outer support rods parallel to the radial direction of the central shaft are passed through the end of the support arm, and an outer mounting frame is fixedly connected to the end of each outer support rod. An outer polishing block is fixedly disposed within the outer mounting frame, and a second spring is sleeved on the outer support rod between the support arm and the outer mounting frame.

[0011] Preferably, the inner mounting frame is screwed with a plurality of first fastening bolts that abut against the inner polishing block, and the outer mounting frame is screwed with a plurality of second fastening bolts that abut against the outer polishing block.

[0012] Preferably, an inner cleaning sponge block in the shape of a cylinder is fixedly connected to the central shaft on the side of the inner polishing block away from the clamp, and an outer cleaning sponge block in the shape of a ring is fixedly connected to a plurality of the support arms on the side of the outer polishing block away from the clamp.

[0013] In summary, the beneficial effects of this utility model are as follows: the contact surfaces of the inner polishing block and the outer polishing block respectively abut against the inner and outer walls of the seamless steel pipe that is clamped and fixed on the fixture and moves axially with the fixture; the inner polishing block and the outer polishing block, which are driven to rotate by the second motor, simultaneously perform surface treatment on the inner and outer walls of the seamless steel pipe, thereby improving the efficiency of surface treatment of the seamless steel pipe. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0017] Figure 3 This is an enlarged schematic diagram of the inner polishing block and the outer polishing block in this utility model;

[0018] Figure 4 This is an enlarged schematic diagram of the fixed half-hoop and the movable half-hoop in this utility model.

[0019] In the diagram: 1. Frame; 2. Fixture; 21. Moving plate; 211. First waste outlet; 212. Second waste outlet; 22. Fixed half hoop; 23. Movable half hoop; 13. First motor; 24. Linear guide rail; 3. Support plate; 31. Slewing bearing; 4. Rotating disk; 5. Central shaft; 51. Mounting frame; 52. Inner support rod; 53. Inner mounting frame; 54. First spring; 55. First fastening bolt; 56. Inner cleaning sponge block; 57. Inner limit protrusion; 6. Inner polishing block; 7. Support arm; 71. Outer support rod; 72. Outer mounting frame; 73. Second spring; 74. Second fastening bolt; 75. Outer cleaning sponge block; 76. Outer limit protrusion; 8. Outer polishing block; 9. Dustproof cylinder; 91. Fixed half cylinder; 92. Movable half cylinder; 10. Collection hopper; 11. Second motor. Detailed Implementation

[0020] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] As shown in the figure, a seamless steel pipe surface treatment device includes a frame 1 and a clamp 2. The clamp 2 is slidably mounted on the frame 1 and is driven by a first motor 13 mounted on the frame 1. A support plate 3 is mounted on the frame 1 opposite to the clamp 2. A rotating disk 4 is rotatably mounted on the support plate 3 and is driven by a second motor 11 mounted on the support plate 3. A central shaft 5 with its axis aligned with the center of the clamp 2 is fixedly connected to the center of the rotating disk 4. A plurality of inner polishing blocks 6 arranged in a ring along the central shaft 5 with their contact surfaces facing outward are provided at the end of the central shaft 5. A plurality of support arms 7 arranged in a ring along the central shaft 5 are fixedly connected to the rotating disk 4. An outer polishing block 8 with its contact surface facing inward is provided at the end of the support arm 7.

[0022] Specifically, the clamp 2 and its slidable arrangement on the frame 1 are as follows: The clamp 2 includes a movable plate 21, a fixed half-hoop 22, and a movable half-hoop 23. The frame 1 is provided with two linear guide rails 24. The movable plate 21 is fixedly connected to the sliding seat of the linear guide rail 24. A transmission screw (the transmission screw is located below the table surface of the frame 1, not shown in the figure) is rotatably arranged on the frame 1 and screwed to the movable plate 21 and connected to the first motor 13 for transmission. The fixed half-hoop 22 is fixedly connected to the movable plate 21. The movable half-hoop 23 is hinged to the end of the fixed half-hoop 22, and the free end of the movable half-hoop 23 is fastened to the fixed half-hoop 22 by bolts. The first motor 13 drives the transmission screw to rotate. The transmission screw drives the movable plate 21 to slide on the linear guide rail 24 through threaded engagement with the movable plate 21. The linear guide rail 24 ensures the stability of the movable plate 21 during movement.

[0023] Specifically, the rotating disk 4 is rotatably mounted on the support plate 3 via a slewing bearing 31. The output shaft of the second motor 11 passes through the slewing bearing 31 and is fixedly connected to the rotating disk 4. The slewing bearing 31 has strong radial load capacity, which can ensure the stability of the rotating disk 4 when it is driven by the second motor 11. The output shaft of the second motor 11 can also be connected to the rotating disk 4 via a reducer to adjust the rotation speed of the rotating disk 4.

[0024] In the above embodiment, there is a certain gap between the contact surface of the inner polishing block 6 and the contact surface of the outer polishing block 8. This gap matches the thickness of the seamless steel pipe to be processed. When performing surface treatment on the seamless steel pipe, one end of the seamless steel pipe is first placed against the moving plate 21 and then placed on the fixed half hoop 22. The movable half hoop 23 is swung to make it press tightly against the seamless steel pipe. After the free end of the movable half hoop 23 is fastened to the fixed half hoop 22 by bolts, the movable half hoop 23 and the fixed half hoop 22 cooperate to hold the seamless steel pipe and fix the seamless steel pipe to the moving plate 21. At this time, the axis of the seamless steel pipe is aligned with the axis of the central axis 5. Then the first Motor 13 drives the moving plate 21 to move the seamless steel pipe toward the support plate 3, so that the central shaft 5 enters the interior of the seamless steel pipe and the contact surfaces of several inner polishing blocks 6 abut against the inner wall of the seamless steel pipe. The support arm 7 is located on the outside of the seamless steel pipe and the contact surfaces of several outer polishing blocks 8 abut against the outer wall of the seamless steel pipe. At this time, the second motor 11 drives the rotating disk 4 to rotate the central shaft 5 and the support arm 7. The central shaft 5 and the support arm 7 simultaneously drive the several inner polishing blocks 6 and the outer polishing blocks 8 to rotate, and in conjunction with the axial movement of the seamless steel pipe, the inner and outer walls of the seamless steel pipe are simultaneously surface treated, thereby improving the efficiency of the seamless steel pipe surface treatment.

[0025] In addition, based on the above structure, the movable plate 21 is provided with a dustproof cylinder 9 whose axis is aligned with the central axis 5 and surrounds the outside of the fixed half hoop 22 and the movable half hoop 23. The dustproof cylinder 9 is composed of a fixed half cylinder 91 and a movable half cylinder 92. The end of the fixed half cylinder 91 is fixedly connected to the movable plate 21. The movable half cylinder 92 is hinged to the end of the fixed half cylinder 91, and the free end of the movable half cylinder 92 is fastened to the fixed half cylinder 91 by bolts. The movable plate 21 has a first row of waste outlets 211 and a second row of waste outlets 212 that are respectively connected to the dustproof cylinder 9 and the fixed half hoop 22. A funnel-shaped collection hopper 10 covering the first row of waste outlets 211 and the second row of waste outlets 212 is fixedly connected to the movable plate 21.

[0026] In the preferred embodiment described above, when the seamless steel pipe is clamped and fixed on the clamp 2, the movable half-cylinder 92 is first swung to clamp and fix the seamless steel pipe on the clamp 2. When the free end of the movable half-cylinder 92 is fastened to the fixed half-cylinder 91 with bolts to form the dustproof cylinder 9, the seamless steel pipe is located inside the dustproof cylinder 9. The first row of waste outlets 211 communicates with the interior of the seamless steel pipe, and the second row of waste outlets 212 communicates with the space between the outer wall of the seamless steel pipe and the interior of the dustproof cylinder 9. The collection hopper 10 is connected to an external ventilation system. The inner polishing block 6 and... When the outer polishing block 8 performs surface treatment on both the inner and outer walls of the seamless steel pipe, the exhaust fan operates, causing dust and debris generated during surface treatment inside the seamless steel pipe and between the outer wall of the seamless steel pipe and the inner wall of the dustproof cylinder 9 to be sucked into the collection hopper 10 through the first waste port 211 and the second waste port 212, respectively. This ensures that the dust and debris generated during the surface treatment process are removed in a timely manner, thus ensuring a clean working environment and preventing a large amount of dust and debris from remaining on the inner and outer walls of the seamless steel pipe and affecting the surface treatment operation.

[0027] Furthermore, based on the above structure, a plurality of mounting brackets 51 are fixedly connected to the end of the central shaft 5. A plurality of inner support rods 52, which are radially parallel to the central shaft 5 and in the shape of T-shaped rods, are threaded through the mounting brackets 51. An inner mounting frame 53 is fixedly connected to the end of the inner support rods 52. An inner polishing block 6 is fixedly disposed within the inner mounting frame 53. A first spring 54 is sleeved on the inner support rods 52 and located between the mounting brackets 51 and the inner mounting frame 53. A plurality of outer support rods 71, which are radially parallel to the central shaft 5 and in the shape of T-shaped rods, are threaded through the end of the support arm 7. An outer mounting frame 72 is fixedly connected to the end of the outer support rods 71. An outer polishing block 8 is fixedly disposed within the outer mounting frame 72. A second spring 73 is sleeved on the outer support rods 71 ​​and located between the support arm 7 and the outer mounting frame 72.

[0028] In the preferred embodiment described above, the first support rod tends to slide radially outward along the central axis 5 under the action of the first spring 54, causing the inner polishing block 6 to tend to slide radially outward along the central axis 5. The second support rod tends to slide radially inward along the central axis 5 under the action of the second spring 73, causing the outer polishing block 8 to tend to slide radially inward along the central axis 5. This ensures that the inner polishing block 6 and the outer polishing block 8 can always be in contact with the inner and outer walls of the seamless steel pipe during surface treatment, preventing the inner polishing block 6 and the outer polishing block 8 from separating from the inner and outer walls of the seamless steel pipe due to wear. This ensures the surface treatment effect and extends the service life of the inner polishing block 6 and the outer polishing block 8.

[0029] Preferably, the inner mounting frame 53 is screwed with a plurality of first fastening bolts 55 that abut against the inner polishing block 6, and the outer mounting frame 72 is screwed with a plurality of second fastening bolts 74 that abut against the outer polishing block 8. The inner polishing block 6 and the outer polishing block 8 in the inner mounting frame 53 and the outer mounting frame 72 are fixed in the above manner for easy disassembly and assembly, so as to facilitate replacement according to the wear of the inner polishing block 6 and the outer polishing block 8 to ensure the effect of surface treatment of seamless steel pipe.

[0030] Furthermore, based on the above structure, a cylindrical inner cleaning sponge block 56 located on the side of the inner polishing block 6 away from the clamp 2 is fixedly connected to the central shaft 5, and an annular outer cleaning sponge block 75 located on the side of the outer polishing block 8 away from the clamp 2 is fixedly connected to several support arms 7. Specifically, several inner limiting protrusions 57 are formed on the central shaft 5 to insert into the inner cleaning sponge block 56 to achieve a fixed connection between the inner cleaning sponge block 56 and the central shaft 5, and outer limiting protrusions 76 are formed on the support arms 7 to insert into the outer cleaning sponge block 75 to achieve a fixed connection between the outer cleaning sponge block 75 and the support arm 7.

[0031] In the preferred embodiment described above, the outer diameter of the inner cleaning sponge block 56 is adapted to the inner diameter of the seamless steel pipe, so that the inner cleaning sponge block 56 contacts the inner wall of the seamless steel pipe after being inserted into the seamless steel pipe along with the central shaft 5. The inner diameter of the outer cleaning sponge block 75 is adapted to the outer diameter of the seamless steel pipe, and the outer diameter is adapted to the inner diameter of the dustproof cylinder 9, so that when the outer cleaning sponge block 75 moves to the outside of the seamless steel pipe with the support arm 7, its inner circumferential surface contacts the outer wall of the seamless steel pipe, and its outer circumferential surface contacts the inner wall of the dustproof cylinder 9. Thus, when the inner polishing block 6 and the outer polishing block 8 perform surface treatment on the outer wall of the inner wall of the seamless steel pipe, The inner cleaning sponge block 56 and the outer cleaning sponge block 75 rotate under the drive of the central shaft 5 and the support arm 7, respectively scraping the inner and outer walls of the seamless steel pipe. This sweeps away the fine dust that may adhere to the inner and outer walls of the seamless steel pipe and sucks it into the collection hopper 10, improving the cleanliness of the inner and outer walls of the seamless steel pipe after surface treatment. Furthermore, the inner cleaning sponge block 56 and the outer cleaning sponge block 75 create a relatively sealed space between the inside of the seamless steel pipe and the outer wall of the seamless steel pipe and the inner wall of the dustproof cylinder 9, thereby improving the efficiency of the extraction equipment in removing dust and debris.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seamless steel pipe surface treatment apparatus comprising a frame (1) and a clamp (2), characterized in that: The clamp (2) is slidably mounted on the frame (1) and driven by the first motor (13) mounted on the frame (1). The frame (1) is provided with a support plate (3) opposite to the clamp (2). The support plate (3) is rotatably mounted with a rotating disk (4) driven by the second motor (11) mounted on the support plate (3). The center of the rotating disk (4) is fixedly connected with a central shaft (5) whose axis is aligned with the center of the clamp (2). The end of the central shaft (5) is provided with a plurality of inner polishing blocks (6) arranged in a ring along the central shaft (5) with the contact surface facing outward. The rotating disk (4) is fixedly connected with a plurality of support arms (7) arranged in a ring along the central shaft (5). The end of the support arm (7) is provided with an outer polishing block (8) with the contact surface facing inward.

2. The apparatus for surface treatment of seamless steel pipes according to claim 1, characterized in that: The clamp (2) includes a movable plate (21), a fixed half hoop (22) and a movable half hoop (23). Two linear guide rails (24) are provided on the frame (1). The movable plate (21) is fixedly connected to the sliding seat of the linear guide rail (24). A transmission screw is rotatably provided on the frame (1) and screwed to the movable plate (21) and connected to the first motor (13). The fixed half hoop (22) is fixedly connected to the movable plate (21). The movable half hoop (23) is hinged to the end of the fixed half hoop (22) and the free end of the movable half hoop (23) is fastened to the fixed half hoop (22) by bolts.

3. The apparatus for surface treatment of seamless steel pipes according to claim 2, characterized in that: The rotating disk (4) is rotatably mounted on the support plate (3) via a slewing bearing (31), and the output shaft of the second motor (11) passes through the slewing bearing (31) and is fixedly connected to the rotating disk (4).

4. The seamless steel pipe surface treatment device according to claim 3, characterized in that: The movable plate (21) is provided with a dustproof cylinder (9) whose axis is aligned with the central axis (5) and surrounds the outside of the fixed half hoop (22) and the movable half hoop (23). The dustproof cylinder (9) is composed of a fixed half cylinder (91) and a movable half cylinder (92). The end of the fixed half cylinder (91) is fixedly connected to the movable plate (21). The movable half cylinder (92) is hinged to the end of the fixed half cylinder (91), and the free end of the movable half cylinder (92) is fastened to the fixed half cylinder (91) by bolts. The movable plate (21) is provided with a first row of waste outlets (211) and a second row of waste outlets (212) that are respectively connected to the dustproof cylinder (9) and the fixed half hoop (22). The movable plate (21) is fixedly connected with a funnel-shaped collection hopper (10) that covers the first row of waste outlets (211) and the second row of waste outlets (212).

5. The seamless steel pipe surface treatment device according to claim 4, characterized in that: The central shaft (5) is fixedly connected to a plurality of mounting brackets (51). A plurality of inner support rods (52) parallel to the radial direction of the central shaft (5) are threaded through the mounting brackets (51). An inner mounting frame (53) is fixedly connected to the end of the inner support rods (52). An inner polishing block (6) is fixedly installed inside the inner mounting frame (53). A first spring (54) located between the mounting brackets (51) and the inner mounting frame (53) is sleeved on the inner support rods (52). A plurality of outer support rods (71) parallel to the radial direction of the central shaft (5) are threaded through the end of the support arm (7). An outer mounting frame (72) is fixedly connected to the end of the outer support rods (71). An outer polishing block (8) is fixedly installed inside the outer mounting frame (72). A second spring (73) located between the support arm (7) and the outer mounting frame (72) is sleeved on the outer support rods (71).

6. The seamless steel pipe surface treatment device according to claim 5, characterized in that: The inner mounting frame (53) is screwed with several first fastening bolts (55) that abut against the inner polishing block (6), and the outer mounting frame (72) is screwed with several second fastening bolts (74) that abut against the outer polishing block (8).

7. The seamless steel pipe surface treatment device according to claim 6, characterized in that: An inner cleaning sponge block (56) in the shape of a cylinder is fixedly connected to the central shaft (5) on the side of the inner polishing block (6) away from the clamp (2), and an outer cleaning sponge block (75) in the shape of a ring is fixedly connected to several of the support arms (7) on the side of the outer polishing block (8) away from the clamp (2).

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