A seamless steel tube flat end device
By designing clamping and grinding components that automatically adapt to different diameters, the problem of needing to replace clamps in existing steel pipe end-face processing devices has been solved, achieving efficient and stable steel pipe end-face processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HONGLUN QIXIN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-24
Smart Images

Figure CN224544056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe processing technology, specifically to a seamless steel pipe flat-end device. Background Technology
[0002] Seamless steel pipes are made by piercing a whole round steel bar. They have no weld seams on their surface and have high strength, high pressure resistance and excellent processing performance. They are widely used in petroleum, chemical, and machinery manufacturing industries.
[0003] A steel pipe end-finishing device is an industrial equipment specifically designed for finishing the end faces of steel pipes. Its core task is to process the irregular, burr-covered, beveled, or non-perpendicular end faces produced after cutting the steel pipe into flat, smooth end faces that are perpendicular to the steel pipe axis and have precise geometric dimensions.
[0004] The existing steel pipe end-cutting device uses a hydraulic cylinder to push a clamp to hold the steel pipe. Different sizes of clamps need to be changed depending on the diameter of the steel pipe, which is not only inconvenient for operators, but also affects the processing efficiency. Utility Model Content
[0005] The purpose of this utility model is to provide a seamless steel pipe flattening device to overcome the above-mentioned defects in the prior art. According to this utility model, a seamless steel pipe flattening device includes a machine body, on which a clamping assembly and a grinding assembly are provided, a control panel is installed on one side of the machine body, and a discharge chute is formed inside the machine body.
[0006] The clamping assembly includes a clamping member installed on the machine body, a placement hole is formed in the clamping member, an annular member is rotatably installed in the placement hole, a second rotating groove is formed through the annular member, a clamping block is rotatably installed in the clamping member, and the clamping block is installed in the second rotating groove.
[0007] Preferably, the grinding assembly includes a base plate fixedly installed above the machine body, a slide rail fixedly installed on the base plate, a slide plate slidably installed on the slide rail, a sliding base fixedly installed on the slide plate, a rotating component fixedly installed on the sliding base, and a hydraulic cylinder installed at the other end of the base plate, the hydraulic cylinder being connected to the slide plate.
[0008] Preferably, a rotating groove is formed in the rotating component, a rotating shaft is rotatably installed in the rotating groove, a grinding disc is installed at one end of the rotating shaft, a plurality of cutting heads are provided on the grinding disc, a bracket is fixedly installed on the rotating component, a motor is installed on the bracket, a transmission component is installed at the other end of the motor and the rotating shaft respectively, and a transmission belt is installed on the two transmission components.
[0009] Preferably, the clamping assembly includes a clamping member mounted on the machine body, a placement hole and a groove in the clamping member, an annular member rotatably mounted in the groove, annular blocks fixedly mounted at both ends of the annular member, the annular blocks rotatably connected to the groove, three fixed shafts I evenly fixedly mounted in the groove, clamping blocks rotatably mounted on the fixed shafts I, a slider slidably mounted on the clamping blocks, a fixed shaft II fixedly mounted on the slider, a rotating groove II penetrating in the annular member, a rotating hole penetrating on one side of the rotating groove II, the fixed shaft II rotatably connected to the rotating hole, connecting blocks fixedly mounted on both sides of the bottom of the annular member, a fixed shaft III fixedly mounted between two connecting blocks, a hydraulic cylinder II mounted on one side of the clamping member, a rotating block mounted at the front end of the hydraulic cylinder II, the rotating block rotatably connected to the fixed shaft III.
[0010] Preferably, a rotating groove three is formed on the inner side of the clamping block, an arc-shaped plate is rotatably mounted on the fixed shaft four, a connecting plate is fixedly mounted on the arc-shaped plate, a connecting groove is formed in the rotating groove three, and at least one spring is installed between the connecting groove and the arc-shaped plate.
[0011] The beneficial effects of this utility model are: 1. A clamping component is installed on the machine body. An annular component is rotatably installed inside the clamping component. A clamping block is evenly rotated inside the clamping component. A slider is slidably installed on the clamping block. The slider is rotatably connected to the annular component. A second hydraulic cylinder is installed on one side of the clamping component. The second hydraulic cylinder is connected to the annular component. When the second hydraulic cylinder is activated, it extends and pushes the annular component to rotate, causing the slider to slide on the clamping block toward the fixed shaft. This pulls the clamping block to rotate toward the center and clamp the steel pipe. After the grinding component completes the grinding of the steel pipe, the second hydraulic cylinder is controlled to drive the annular component to rotate back to its original position and release the steel pipe. This makes it more convenient for workers to operate, improves work efficiency, and enhances the practicality of the device.
[0012] 2. A rotating groove three is made on the inner side of the clamping block. An arc-shaped plate is rotatably installed on the fixed shaft four. A connecting plate is fixedly installed on the arc-shaped plate. A connecting groove is made in the rotating groove three. A spring is installed between the connecting groove and the arc-shaped plate. When the hydraulic cylinder two is activated and extends to drive the annular part to rotate, it also drives the clamping block to clamp the steel pipe inward. The steel pipe squeezes the connecting plate, causing the arc-shaped block to rotate inward and clamp the steel pipe. The arc-shaped block can fit against the steel pipe for clamping. After grinding is completed, the hydraulic cylinder two is controlled to retract, and the annular part is controlled to rotate in the opposite direction, driving the clamping block to rotate back to its original position. The arc-shaped block leaves the surface of the steel pipe. The connecting plate rebounds outward under the action of the spring, driving the arc-shaped block to rotate inward into the rotating groove three, which is more stable and firm, and improves the stability of the structure. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the appearance of this utility model; Figure 2 yes Figure 1 Enlarged view of point A; Figure 3 This is a first side sectional view of the present invention; Figure 4 yes Figure 3 Enlarged view of point B; Figure 5 This is a second side sectional view of the present invention; Figure 6 yes Figure 5 Enlarged diagram of point C.
[0014] In the diagram: 1. Machine body; 2. Control panel; 3. Discharge chute; 4. Base plate; 5. Slide rail; 6. Slide plate; 7. Sliding base; 8. Connecting piece; 9. Rotating groove one; 10. Rotating shaft; 11. Grinding disc; 12. Cutting head; 13. Bracket; 14. Motor; 15. Transmission component; 16. Transmission belt; 17. Hydraulic cylinder one; 18. Groove; 19. Annular component; 20. Fixed shaft one; 21. Clamping block; 22. Rotating groove two; 23. Slider; 24. Rotating hole; 25. Fixed shaft two; 26. Connecting block; 27. Hydraulic cylinder two; 28. Fixed shaft three; 29. Clamping piece; 30. Placement hole; 31. Rotating block; 32. Annular block; 33. Rotating groove three; 34. Connecting groove; 35. Spring; 36. Arc-shaped block; 37. Connecting plate; 38. Fixed shaft four. Detailed Implementation
[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe a seamless steel pipe flat-end device or several specific implementations of this utility model, and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up / down and left / right are not limited to their strict geometric definitions, but rather include tolerances for reasonable and inconsistent machining or human errors. The specific features of this seamless steel pipe flat-end device are described in detail below: Reference Figures 1-6 According to an embodiment of the present invention, a seamless steel pipe flat-end device includes a body 1, a clamping assembly and a grinding assembly are provided on the body 1, a control panel 2 is installed on one side of the body 1, the control panel 2 controls the operation of the clamping assembly and the grinding assembly, and a discharge groove 3 is opened in the body 1, from which the debris generated by grinding the steel pipe slides out. This is a conventional structure of a seamless steel pipe flat-end device.
[0016] The grinding assembly includes a base plate 4 fixedly mounted above the machine body 1, a slide rail 5 fixedly mounted on the base plate 4, a slide plate 6 slidably mounted on the slide rail 5, a sliding base 7 fixedly mounted on the slide plate 6, a rotating component 8 fixedly mounted on the sliding base 7, a rotating groove 9 formed in the rotating component 8, a rotating shaft 10 rotatably mounted in the rotating groove 9, a grinding disc 11 mounted at one end of the rotating shaft 10, a plurality of cutting heads 12 arranged on the grinding disc 11, a bracket 13 fixedly mounted on the rotating component 8, and a motor 14 mounted on the bracket 13. A transmission component 15 is installed at the other end of the shaft 10 and the base plate 4 respectively. A transmission belt 16 is installed on the two transmission components 15. A hydraulic cylinder 17 is installed at the other end of the base plate 4. The hydraulic cylinder 17 is connected to the slide plate 6. After the steel pipe is fixed by the clamping assembly, the motor 14 is started to drive the shaft 10 to rotate through the transmission belt 16, thereby causing the grinding disc 11 to rotate. Then, the hydraulic cylinder 17 is started to push the slide plate 6 to slide on the slide rail 5, causing the grinding disc 11 to contact the steel pipe. The rotating cutter head 12 grinds the steel pipe.
[0017] Existing steel pipe end-cutting devices use a hydraulic cylinder to push a clamp to hold the steel pipe. Different sizes of clamps need to be changed depending on the diameter of the steel pipe, which is not only inconvenient for operators, but also affects the processing efficiency. In order to solve this problem, the inventors considered making the following improvements.
[0018] The clamping assembly includes a clamping member 29 mounted on the body 1. A placement hole 30 is formed in the clamping member 29. A groove 18 is formed in the clamping member 29. An annular member 19 is rotatably mounted in the groove 18. Annular blocks 32 are fixedly mounted at both ends of the annular member 19. The annular blocks 32 are rotatably connected to the groove 18. Three fixed shafts 20 are evenly fixedly mounted in the groove 18. A clamping block 21 is rotatably mounted on the fixed shaft 20. A slider 23 is slidably mounted on the clamping block 21. A fixed shaft 25 is fixedly mounted on the slider 23. A rotating groove 22 is formed through the annular member 19. A rotating hole 24 is formed through one side of the rotating groove 22. The fixed shaft 25 is rotatably connected to the rotating hole 24. Connecting blocks 26 are fixedly mounted on both sides of the bottom of the annular member 19. A fixed shaft 28 is fixedly mounted between two connecting blocks 26. Hydraulic cylinder 27 is installed, and a rotating block 31 is installed at the front end of hydraulic cylinder 27. The rotating block 31 is rotatably connected to the fixed shaft 28. After the steel pipe is placed into the annular part 19, hydraulic cylinder 27 is activated to extend and push the annular part 19 to rotate. Since the slider 23 is rotatably installed on the annular part 19, the rotation of the annular part 19 also drives the slider 23 to rotate, and the slider 23 slides on the clamping block 21 toward the fixed shaft 20, thereby pulling the clamping block 21 from the rotating groove 22 toward the center to clamp the steel pipe. After the steel pipe is polished with the grinding assembly, hydraulic cylinder 27 is controlled to retract, driving the annular part 19 to rotate back to its original position in the opposite direction, so that the clamping block 21 releases the steel pipe. Compared with the original method of changing the corresponding clamp according to the different sizes of steel pipes, the above structure is more convenient for operators to operate, improves work efficiency, and improves the practicality of the device.
[0019] Furthermore, the above structure can only clamp the steel pipe through the inner side of the clamping block 21. To strengthen the clamping of the steel pipe, a rotating groove 33 is opened on the inner side of the clamping block 21, an arc-shaped plate 36 is rotatably installed on the fixed shaft 38, a connecting plate 37 is fixedly installed on the arc-shaped plate 36, a connecting groove 34 is opened in the rotating groove 33, and at least one spring 35 is installed between the connecting groove 34 and the arc-shaped plate 36. When the hydraulic cylinder 27 is activated to extend and drive the annular part 19 to rotate, it also drives the clamping block 21 to clamp inward. The steel pipe presses against the connecting plate 37, causing the arc-shaped block 36 to rotate inward and clamp the steel pipe. The arc-shaped block 36 can fit against the steel pipe for clamping. After grinding is completed, the hydraulic cylinder 27 is controlled to retract, and the annular part 19 is controlled to rotate in the opposite direction, driving the clamping block 21 to rotate back to its original position. The arc-shaped block 36 leaves the surface of the steel pipe, and the connecting plate 37 rebounds outward under the action of the spring 35, thereby driving the arc-shaped block 36 to rotate inward into the rotating groove 33. Compared with the original clamping structure, it is more stable and firm, improving the stability of the structure.
[0020] The specific implementation process is as follows: The steel pipe is placed into the placement hole 30. The second hydraulic cylinder 27 is activated to extend and push the annular component 19 to rotate. Simultaneously, the rotation of the annular component 19 causes the slider 23 to rotate, sliding towards the fixed shaft 20. This pulls the clamping block 21 to rotate towards the center and clamp the steel pipe. The steel pipe presses inward against the connecting plate 37, causing the arc-shaped block 36 to rotate inward and clamp the steel pipe. The arc-shaped block 36 can fit snugly against the steel pipe for clamping. Then, the motor 14 is activated, driving the rotating shaft 10 to rotate via the conveyor belt 16. The grinding disc 11 is rotated, and then the hydraulic cylinder 17 is activated to push the slide plate 6 to slide on the slide rail 5, causing the grinding disc 11 to contact the steel pipe. The rotating cutter head 12 grinds the steel pipe. After grinding is completed, the hydraulic cylinder 27 is controlled to retract, causing the annular part 19 to rotate in the opposite direction, causing the clamping block 21 to rotate back to its original position. The arc-shaped block 36 leaves the surface of the steel pipe, and the connecting plate 37 rebounds outward under the action of the spring 35, thereby causing the arc-shaped block 36 to rotate inward into the rotating groove 33.
[0021] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.
Claims
1. A seamless steel pipe flat-end device, comprising a body (1), a clamping assembly and a grinding assembly disposed on the body (1), a control panel (2) installed on one side of the body (1), and a discharge chute (3) formed inside the body (1), characterized in that: The clamping assembly includes a clamping member (29) installed on the body (1), a placement hole (30) is opened in the clamping member (29), an annular member (19) is rotatably installed in the placement hole (30), a rotating groove (22) is opened through the annular member (19), a clamping block (21) is rotatably installed in the clamping member (29), and the clamping block (21) is installed in the rotating groove (22).
2. The seamless steel pipe end-flattening device according to claim 1, characterized in that: The grinding assembly includes a base plate (4) fixedly installed above the body (1), a slide rail (5) fixedly installed on the base plate (4), a slide plate (6) slidably installed on the slide rail (5), a sliding base (7) fixedly installed on the slide plate (6), a rotating component (8) fixedly installed on the sliding base (7), and a hydraulic cylinder (17) installed at the other end of the base plate (4), the hydraulic cylinder (17) being connected to the slide plate (6).
3. The seamless steel pipe end-flattening device according to claim 2, characterized in that: A rotating groove (9) is opened in the rotating part (8), and a rotating shaft (10) is rotatably installed in the rotating groove (9). A grinding disc (11) is installed at one end of the rotating shaft (10), and several cutting heads (12) are set on the grinding disc (11). A bracket (13) is fixedly installed on the rotating part (8), and a motor (14) is installed on the bracket (13). A transmission component (15) is installed at the other end of the motor (14) and the rotating shaft (10), and a transmission belt (16) is installed on the two transmission components (15).
4. The seamless steel pipe end-flattening device according to claim 1, characterized in that: A groove (18) is formed in the clamping member (29). An annular member (19) is rotatably installed in the groove (18). Annular blocks (32) are fixedly installed at both ends of the annular member (19). The annular blocks (32) are rotatably connected to the groove (18). Three fixed shafts (20) are evenly fixedly installed in the groove (18). A clamping block (21) is rotatably installed on the fixed shaft (20). A slider (23) is slidably installed on the clamping block (21). A fixed shaft (23) is fixedly installed on the slider (23). (25) A rotating hole (24) is opened through one side of the rotating groove (22). The fixed shaft (25) is rotatably connected to the rotating hole (24). Connecting blocks (26) are fixedly installed on both sides of the bottom of the annular part (19). A fixed shaft (28) is fixedly installed between the two connecting blocks (26). A hydraulic cylinder (27) is installed on one side of the clamping part (29). A rotating block (31) is installed at the front end of the hydraulic cylinder (27). The rotating block (31) is rotatably connected to the fixed shaft (28).
5. The seamless steel pipe end-flattening device according to claim 4, characterized in that: A rotating groove three (33) is opened on the inner side of the clamping block (21), an arc plate (36) is rotatably installed on the fixed shaft four (38), a connecting plate (37) is fixedly installed on the arc plate (36), a connecting groove (34) is opened in the rotating groove three (33), and at least one spring (35) is installed between the connecting groove (34) and the arc plate (36).