Seamless steel tube inner wall polishing equipment

Abstract

The utility model belongs to the technical field of steel pipe polishing, and particularly relates to seamless steel pipe inner wall polishing equipment which comprises a polishing mechanism and a feeding fixing mechanism, the polishing mechanism comprises a first machine tool, a machine tool guide rail is installed on the upper end face of the first machine tool, and a sliding block is arranged at the upper end of the machine tool guide rail. A power conversion box is installed on the upper end face of the sliding block, a motor is installed on the upper end face of the power conversion box, a transmission shaft fixing base is connected to the right end face of the power conversion box, a transmission shaft is connected to the axis of the transmission shaft fixing base, and a grinding block is installed on the right end shaft of the transmission shaft. By arranging the movable supporting air cylinder and the replaceable grinding block, the seamless steel pipe inner wall polishing device can be suitable for polishing the inner walls of seamless steel pipes with different diameters and lengths, and can meet the requirements of different fields for the smoothness and roughness of the inner walls of the seamless steel pipes; the device is simple in structure and convenient to operate, does not need complex debugging and maintenance, and reduces the operation difficulty and cost.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe polishing, in particular to a seamless steel pipe inner wall polishing device. Background Art

[0002] Seamless steel pipe is made from a single piece of metal, with no seams on the surface. This characteristic gives it high strength and excellent mechanical properties. Seamless steel pipe is widely used in gun barrels, oil and geological drilling pipes, petrochemical cracking pipes, bearing tubes, and high-precision structural steel pipes for automobiles and aviation. Therefore, seamless steel pipe requires very high internal polishing requirements. Traditional polishing methods suffer from uneven polishing, low efficiency, and high costs, making them unable to meet the production needs of high-precision seamless steel pipe. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a seamless steel pipe inner wall polishing device, which solves the problems mentioned in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seamless steel pipe inner wall polishing device, comprising a grinding mechanism and a feed fixing mechanism, the grinding mechanism comprising a first machine tool, the upper end face of the first machine tool is fixedly mounted with a machine tool guide rail, the upper end of the machine tool guide rail is provided with a slider, the upper end face of the slider is fixedly mounted with a power conversion box, the upper end face of the power conversion box is fixedly mounted with a motor, the right end face of the power conversion box is fixedly connected with a transmission shaft fixing seat, the axis center of the transmission shaft fixing seat is fixedly connected with a transmission shaft, and the right end shaft of the transmission shaft is fixedly mounted with a grinding block.

[0005] As an optimal technical solution of the present invention, the feeding fixing mechanism includes a grinding machine, the interior of the grinding machine is fixedly installed with a supporting cylinder guide rail, the upper part of the supporting cylinder guide rail is provided with a supporting cylinder slider, the upper end face of the supporting cylinder slider is fixedly installed with a supporting cylinder, the upper end face of the supporting cylinder is provided with a supporting shaft, the upper end face of the supporting shaft is connected to a steel pipe rotating shaft support seat, the left and right inner end faces of the steel pipe rotating shaft support seat are fixedly installed with a steel pipe rotating shaft, and the upper part of the steel pipe rotating shaft is provided with a seamless steel pipe.

[0006] As an optimal technical solution of the present invention, a clamping arm is fixedly installed on the upper end surface of the grinding machine, a clamping cylinder is fixedly installed on the upper end surface of the clamping arm, the lower end of the clamping cylinder is connected to a clamping cylinder connecting rod, the lower end surface of the clamping cylinder connecting rod is fixedly connected to a clamping wheel fixing seat, and clamping wheels are fixedly installed on the left and right sides of the clamping wheel fixing seat.

[0007] As an optimal technical solution of the present invention, a grinding machine tool conveying trough is provided at the upper end of the grinding machine tool, and a seamless steel pipe conveying roller is fixedly installed inside the grinding machine tool conveying trough.

[0008] As a preferred technical solution of the present invention, a fixing frame is fixedly installed on the upper end surface of the first machine tool, a clamping roller fixing shaft is fixedly installed inside the fixing frame, and a clamping roller is fixedly installed circumferentially of the clamping roller fixing shaft.

[0009] As a preferred technical solution of the present invention, a transmission shaft support roller fixing seat is fixedly installed on the left end surface of the fixing frame, and a transmission shaft support roller is fixedly installed on the inner end surface of the transmission shaft support roller fixing seat.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The utility model is suitable for polishing the inner wall of seamless steel pipes of different diameters and lengths by arranging a movable supporting cylinder and a replaceable polishing block, and can meet the requirements of different fields for the smoothness and roughness of the inner wall of seamless steel pipes; the utility model has a simple structure and is easy to operate, and does not require complicated debugging and maintenance, thereby reducing the difficulty and cost of operation; the polishing block can quickly enter the interior of the seamless steel pipe for polishing by driving the transmission shaft to rotate through a motor, thereby greatly improving the polishing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the isometric structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 4 This is a right side structural diagram of the present utility model;

[0016] Figure 5 This is an enlarged schematic diagram of the structure at A of the utility model;

[0017] Figure 6 This is a schematic diagram of the isometric structure of the BB section of the grinding machine tool of the present invention.

[0018] In the figure: 1. Grinding mechanism; 2. Feed fixing mechanism; 3. Steel pipe rotating shaft; 4. Steel pipe rotating shaft support seat; 5. Grinding machine tool; 6. Clamping and fixing arm; 7. Seamless steel pipe; 8. Clamping cylinder; 9. Drive shaft; 10. Machine tool guide rail; 11. First machine tool; 12. Motor; 13. Power conversion box; 14. Slider; 15. Drive shaft fixing seat; 16. Drive shaft support roller; 17. Grinding block; 18. Seamless steel pipe conveying roller; 19. Grinding machine tool conveying trough; 20. Drive shaft support roller fixing seat; 21. Pressure wheel; 22. Pressure wheel fixing seat; 23. Fixed frame; 24. Support shaft; 25. Clamping roller fixing shaft; 26. Clamping roller; 27. Support cylinder; 28. Support cylinder guide rail; 29. ​​Support cylinder slider; 30. Clamping cylinder connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1-6 The utility model provides the following technical solutions: a seamless steel pipe inner wall polishing device, comprising a grinding mechanism 1 and a feed fixing mechanism 2, the grinding mechanism 1 comprising a first machine tool 11, the upper end surface of the first machine tool 11 is fixedly mounted with a machine tool guide rail 10, the upper end of the machine tool guide rail 10 is provided with a slider 14, the upper end surface of the slider 14 is fixedly mounted with a power conversion box 13, the upper end surface of the power conversion box 13 is fixedly mounted with a motor 12, the right end surface of the power conversion box 13 is fixedly connected with a transmission shaft fixing seat 15, the axis center of the transmission shaft fixing seat 15 is fixedly connected with a transmission shaft 9, and the right end shaft of the transmission shaft 9 is fixedly mounted with a grinding block 17.

[0022] In this embodiment, two machine tool guide rails 10 are symmetrically arranged and fixed with threaded bolts. Two groups of sliders 14 are provided on each machine tool guide rail 10. The power conversion box 13 decelerates and converts the power input by the motor 12, and outputs it to the transmission shaft fixing seat 15. The transmission shaft fixing seat 15 then transmits the power to the transmission shaft 9 and the grinding block 17. The transmission shaft fixing seat 15 and the transmission shaft 9 are connected by a key, and the grinding block 17 and the transmission shaft 9 are also connected by a key.

[0023] Specifically, the feeding fixing mechanism 2 includes a grinding machine 5, and a supporting cylinder guide rail 28 is fixedly installed inside the grinding machine 5. A supporting cylinder slider 29 is provided on the upper part of the supporting cylinder guide rail 28. The upper end surface of the supporting cylinder slider 29 is fixedly installed with a supporting cylinder 27, and the upper end surface of the supporting cylinder 27 is provided with a supporting shaft 24. The upper end surface of the supporting shaft 24 is connected to a steel pipe rotating shaft support seat 4, and the left and right inner end surfaces of the steel pipe rotating shaft support seat 4 are fixedly installed with a steel pipe rotating shaft 3, and the upper part of the steel pipe rotating shaft 3 is provided with a seamless steel pipe 7.

[0024] In this embodiment, three groups of support cylinders 27 are provided, and each group is provided with two support cylinders 27. The support cylinders 27 can move forward and backward along the support cylinder guide rails 28, thereby controlling the distance between the steel pipe shaft 3 and the steel pipe shaft support seat 4.

[0025] Specifically, a clamping arm 6 is fixedly installed on the upper end surface of the grinding machine 5, a clamping cylinder 8 is fixedly installed on the upper end surface of the clamping arm 6, the lower end of the clamping cylinder 8 is connected to a clamping cylinder connecting rod 30, the lower end surface of the clamping cylinder connecting rod 30 is fixedly connected to a clamping wheel fixing seat 22, and clamping wheels 21 are fixedly installed on the left and right sides of the clamping wheel fixing seat 22.

[0026] In this embodiment, three groups of clamping and fixing arms 6 are provided, the clamping cylinder 8 is fixed with bolts, and the clamping cylinder connecting rod 30 passes through the opening on the clamping and fixing arm 6 and is thereby connected to the clamping wheel fixing seat 22. Four clamping wheels 21 are symmetrically provided in each group.

[0027] Specifically, a grinding machine conveying trough 19 is provided at the upper end of the grinding machine 5 , and a seamless steel pipe conveying roller 18 is fixedly installed inside the grinding machine conveying trough 19 .

[0028] In this embodiment, eleven sets of grinding machine conveying troughs 19 and seamless steel pipe conveying rollers 18 are provided for conveying seamless steel pipes 7 .

[0029] Specifically, a fixing frame 23 is fixedly installed on the upper end surface of the first machine tool 11 , a clamping roller fixing shaft 25 is fixedly installed inside the fixing frame 23 , and a clamping roller 26 is fixedly installed around the clamping roller fixing shaft 25 .

[0030] In this embodiment, the fixing frame 23 is fixed by welding, and two groups of clamping roller fixing shafts 25 and clamping rollers 26 are provided to limit the left and right movement of the transmission shaft 9.

[0031] Specifically, the transmission shaft support roller fixing seat 20 is fixedly installed on the left end surface of the fixing frame 23 , and the transmission shaft support roller 16 is fixedly installed on the inner end surface of the transmission shaft support roller fixing seat 20 .

[0032] In this embodiment, the transmission shaft support roller fixing seat 20 is fixed to the fixing frame 23 by means of bolt connection.

[0033] The working principle and usage process of the present invention are as follows: the staff controls the supporting cylinder slider 29 to move back and forth, thereby making the supporting cylinder 27 move, and ends when the supporting cylinder 27 moves to the front and rear end surfaces close to the grinding machine 5 respectively, and then the seamless steel pipe 7 is conveyed through the seamless steel pipe conveying roller 18. After conveying, the supporting cylinder slider 29 is controlled to move so that the steel pipe rotating shaft 3 supports the seamless steel pipe 7, and then the supporting cylinder 27 is controlled to be raised and lowered to a suitable height, and then the pressing cylinder 8 is controlled to work so that the pressing cylinder connecting rod 30 is extended, and the pressing wheel 21 is completely pressed against the seamless steel pipe 7, and then the suitable grinding block 17 is fixedly installed on the right end of the transmission shaft 9, and penetrates into the inner wall of the left end of the seamless steel pipe 7, and the motor 12 is started, and the grinding work is carried out through the transmission of the power conversion box 13 and the transmission shaft 9. At the same time, the slider 14 is continuously controlled to move so that the grinding block 17 continues to penetrate into the inner wall of the seamless steel pipe 7, thereby completing the grinding work.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A seamless steel pipe inner wall polishing device, comprising a polishing mechanism (1) and a feed fixing mechanism (2), characterized in that: The grinding mechanism (1) comprises a first machine tool (11), the upper end surface of the first machine tool (11) is fixedly mounted with a machine tool guide rail (10), the upper end of the machine tool guide rail (10) is provided with a slider (14), the upper end surface of the slider (14) is fixedly mounted with a power conversion box (13), the upper end surface of the power conversion box (13) is fixedly mounted with a motor (12), the right end surface of the power conversion box (13) is fixedly connected with a transmission shaft fixing seat (15), the axis of the transmission shaft fixing seat (15) is fixedly connected with a transmission shaft (9), and a grinding block (17) is fixedly mounted on the right end of the transmission shaft (9).

2. The seamless steel pipe inner wall polishing device according to claim 1, characterized in that: The feeding fixing mechanism (2) includes a grinding machine (5), a supporting cylinder guide rail (28) is fixedly installed inside the grinding machine (5), a supporting cylinder slider (29) is provided on the upper part of the supporting cylinder guide rail (28), a supporting cylinder (27) is fixedly installed on the upper end surface of the supporting cylinder slider (29), a supporting shaft (24) is provided on the upper end surface of the supporting cylinder (27), the upper end surface of the supporting shaft (24) is connected to a steel pipe rotating shaft support seat (4), a steel pipe rotating shaft (3) is fixedly installed on the left and right inner end surfaces of the steel pipe rotating shaft support seat (4), and a seamless steel pipe (7) is provided on the upper part of the steel pipe rotating shaft (3).

3. The seamless steel pipe inner wall polishing device according to claim 2, characterized in that: The upper end surface of the grinding machine (5) is fixedly mounted with a clamping arm (6), the upper end surface of the clamping arm (6) is fixedly mounted with a pressing cylinder (8), the lower end of the pressing cylinder (8) is connected with a pressing cylinder connecting rod (30), the lower end surface of the pressing cylinder connecting rod (30) is fixedly connected with a pressing wheel fixing seat (22), and pressing wheels (21) are fixedly mounted on the left and right sides of the pressing wheel fixing seat (22).

4. The seamless steel pipe inner wall polishing device according to claim 2, characterized in that: A grinding machine tool conveying trough (19) is provided at the upper end of the grinding machine tool (5), and a seamless steel pipe conveying roller (18) is fixedly installed inside the grinding machine tool conveying trough (19).

5. The seamless steel pipe inner wall polishing device according to claim 1, characterized in that: A fixing frame (23) is fixedly installed on the upper end surface of the first machine tool (11), a clamping roller fixing shaft (25) is fixedly installed inside the fixing frame (23), and a clamping roller (26) is fixedly installed circumferentially of the clamping roller fixing shaft (25).

6. The seamless steel pipe inner wall polishing device according to claim 5, characterized in that: A transmission shaft support roller fixing seat (20) is fixedly mounted on the left end surface of the fixing frame (23), and a transmission shaft support roller (16) is fixedly mounted on the inner end surface of the transmission shaft support roller fixing seat (20).

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