Clamping device on steel pipe rolling device

Abstract

The clamping device on the steel pipe rolling device comprises a base, a top frame, a supporting groove and a pushing groove, a lifting groove is formed in the top end of the base, two first electric push rods are fixedly connected to the inner bottom of the lifting groove, the supporting groove is fixedly connected to the top ends of the first electric push rods, and a plurality of supporting rollers are rotationally connected to the inner side of the supporting groove; a first threaded rod is rotationally connected between the front inner side wall and the rear inner side wall of the adjusting groove, two adjusting blocks penetrate through the surface of the first threaded rod and are in threaded connection with the adjusting blocks, and grooves are formed in the surfaces of the sides, facing the center of the adjusting groove, of the adjusting blocks; a side clamping concave wheel is rotationally connected between the upper inner wall and the lower inner wall of the groove. The two ends of the bottom of the top frame are fixedly connected to the base surface on the front and rear sides of the right end of the supporting groove. The side clamping concave wheel and the top clamping concave wheel are arranged to clamp a steel pipe, feeding of a pipeline is not delayed, the structure is simple, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe production and processing, in particular to a clamping device on a steel pipe rolling device. Background Art

[0002] Steel pipe rolling is a steel forming processing method. Its main function is to make steel pipes obtain various shapes and sizes, while improving their mechanical properties and surface quality. Steel pipe rolling can be divided into various forms such as hot rolling and cold rolling. By feeding the steel billet into the rolling unit for rolling, steel pipes of various specifications and models are finally obtained.

[0003] Patent No. CN 221515622 U discloses a clamping device on a steel pipe rolling device. The conveying device conveys the steel pipe to the feed inlet of the cold rolling mill. The steel pipe is deformed, resulting in the starting end of the steel pipe not being able to coincide with the feed inlet of the cold rolling mill. The centering clamping assembly is operated to center and clamp the deformed steel pipe, thereby achieving the overlap of the steel pipe and the feed inlet of the cold rolling mill while clamping the steel pipe. Then, the moving assembly is started, so that the moving assembly conveys the steel pipe through the moving plate and the centering clamping assembly. According to production requirements, the height of the moving plate can also be adjusted by the lifting assembly to improve flexibility and reduce usage limitations.

[0004] However, in use, there are the following defects:

[0005] Although V-shaped clamps on both sides are used to clamp and position the steel pipe, according to the description in the comparative document, the purpose of clamping and positioning is to align the deformed steel pipe with the feed port of the cold rolling mill. Therefore, the clamping and positioning position is located on the side of the steel pipe close to the feed port of the cold rolling mill. This results in the length of the steel pipe entering the cold rolling mill being blocked by the clamping and positioning components and being shorter, thereby affecting the processing efficiency. If the steel pipe is pushed directly, it may cause strong friction between the clamping and positioning components and the steel pipe, resulting in wear, affecting the integrity of the steel pipe. Utility Model Content

[0006] The purpose of the utility model is to provide a clamping device on a steel pipe rolling device, which solves the problem proposed in the background technology that the length of the steel pipe entering the cold rolling mill is blocked by the clamping and positioning components and is relatively small, and that directly pushing the steel pipe after clamping may cause strong friction between the clamping and positioning components and the steel pipe, resulting in wear.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping device on a steel pipe rolling device, comprising a base, a top frame, a support groove and a push groove, a lifting groove is provided on the top of the base, two No. 1 electric push rods are fixedly connected to the inner bottom of the lifting groove, the top of the No. 1 electric push rod is fixedly connected to the support groove, and a plurality of support rollers are rotatably connected to the inner side of the support groove; an adjustment groove perpendicular to the direction of the lifting groove is provided on the surface of the base on the left side of the support groove, a No. 1 threaded rod is rotatably connected between the front and rear inner side walls of the adjustment groove, and the surface of the No. 1 threaded rod The surface passes through two adjusting blocks and is connected to the adjusting block threadedly, and a groove is opened on the surface of the adjusting block facing the center of the adjusting groove, and a side clamping concave wheel is rotatably connected between the upper and lower inner walls of the groove; the two ends of the bottom of the top frame are respectively fixedly connected to the base surfaces on the front and rear sides of the right end of the supporting groove, and the top of the top frame is fixedly connected to the No. 2 electric push rod, and the bottom telescopic end of the No. 2 electric push rod passes through the surface of the top frame and is fixedly connected to the cross plate, and the bottom of the cross plate is fixedly connected to two side plates, and the top clamping concave wheel is rotatably connected between the side plates; the right end of the base is fixedly connected to the push groove.

[0008] In this technical solution, the side clamping cams approach each other under the action of the rotation of the No. 1 threaded rod, clamping the surface of the steel pipe from the front and back sides, and the No. 2 electric push rod is started and then descends to drive the top clamping cam to descend, cooperating with the support roller below to clamp the steel pipe from the upper and lower sides. The simultaneous clamping in four directions improves the clamping stability, and the side clamping cam, top clamping cam and support roller can all rotate, so it does not affect the normal loading of the steel pipe and its entry into the cold rolling mill; after the side clamping cam clamps the steel pipe, the steel pipe may be suspended in the air, and the No. 1 electric push rod is started, driving the support groove to rise, so that the support roller can contact the steel pipe, so that the steel pipe remains horizontal, which is convenient for the clamping of the top clamping cam and the subsequent movement into the cold rolling mill, avoiding the problem that the steel pipe cannot be aligned with the feed port of the cold rolling mill due to inclination.

[0009] Preferably, a No. 2 threaded rod is rotatably connected to the inner side of the push groove, a threaded block is passed through the surface of the No. 2 threaded rod and is threadedly connected to the threaded block, and a push plate is fixedly connected to the top of the threaded block.

[0010] Preferably, a No. 2 motor is fixedly connected to the outer surface of the right end of the push groove, and the outer end of the transmission shaft of the No. 2 motor is fixedly connected to one end of the No. 2 threaded rod.

[0011] Preferably, the outer surface of the base at the horizontal position of the No. 1 threaded rod is fixedly connected to the No. 1 motor, and the outer end of the transmission shaft of the No. 1 motor is fixedly connected to one end of the No. 1 threaded rod.

[0012] Preferably, the top clamping concave wheel is located at the center of the supporting roller in the front-to-back direction, and the supporting groove and the lifting groove are located at the center of the top end of the base in the front-to-back direction.

[0013] Preferably, the support groove is parallel to the surface of the base, and the surface of the support roller is slightly lower than the top surface of the support groove.

[0014] Preferably, the left and right inner walls of the lifting slot are both provided with limiting slots, and the left and right side walls of the supporting slot are both fixedly connected with limiting blocks, and the limiting blocks are located inside the limiting slot and are slidably connected to the inner surface of the limiting slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model can clamp the steel pipe through the adjustment block, the side clamping cam wheel, the top clamping cam wheel and the support roller. The side clamping cam wheels are close to each other under the action of the rotation of the No. 1 threaded rod, and the surface of the steel pipe is clamped from the front and back sides. After the No. 2 electric push rod is started, it descends to drive the top clamping cam wheel to descend, and cooperates with the support roller below to clamp the steel pipe from the upper and lower sides. Clamping in four directions at the same time improves the clamping stability. Moreover, the side clamping cam wheel, the top clamping cam wheel and the support roller can all rotate, so it does not affect the normal feeding of the steel pipe and the entry into the cold rolling mill, greatly increases the processable length of the steel pipe, and does not seriously affect the integrity of the steel pipe due to wear caused by strong friction.

[0017] 2. The utility model can always provide support during the process of clamping and moving the steel pipe through the lifting groove, No. 1 electric push rod and support groove. After the side clamping concave wheel clamps the steel pipe, the steel pipe may be suspended in the air. At this time, the No. 1 electric push rod is started to drive the support groove to rise, so that the support roller can contact the steel pipe, allowing the steel pipe to remain horizontal, facilitating the clamping of the top clamping concave wheel and the subsequent movement into the cold rolling mill, avoiding the problem of the steel pipe being unable to align with the feed port of the cold rolling mill due to inclination. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is an overall view of the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the present utility model.

[0021] In the figure: 1. Base; 2. Adjustment slot; 3. Threaded rod No. 1; 301. Motor No. 1; 4. Adjustment block; 401. Groove; 5. Side clamping concave wheel; 6. Lifting slot; 601. Limiting slot; 7. Electric push rod No. 1; 8. Supporting slot; 801. Limiting block; 9. Supporting roller; 10. Top frame; 11. Electric push rod No. 2; 12. Horizontal plate; 13. Side plate; 14. Top clamping concave wheel; 15. Pushing slot; 16. Threaded rod No. 2; 161. Motor No. 2; 17. Threaded block; 18. Pushing plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, they are further elaborated below in conjunction with specific implementation methods.

[0023] A clamping device on a steel pipe rolling device, see Figures 1 to 2 , including a base 1, a top frame 10, a support groove 8 and a push groove 15. A lifting groove 6 is opened at the top of the base 1. Two No. 1 electric push rods 7 are fixedly connected to the inner bottom of the lifting groove 6. The top of the No. 1 electric push rod 7 is fixedly connected to the support groove 8. The inner side of the support groove 8 is rotatably connected to several support rollers 9. After the side clamping concave wheel 5 clamps the steel pipe, the steel pipe may be suspended in the air. The No. 1 electric push rod 7 is controlled to start, driving the support groove 8 to rise, so that the support roller 9 can contact the steel pipe, allowing the steel pipe to remain horizontal, facilitating the clamping of the top clamping concave wheel 14 and the subsequent movement into the cold rolling mill.

[0024] An adjustment slot 2 perpendicular to the lifting slot 6 is provided on the surface of the base 1 on the left side of the supporting slot 8, and a No. 1 threaded rod 3 is rotatably connected between the front and rear inner walls of the adjusting slot 2. Two adjustment blocks 4 are passed through the surface of the No. 1 threaded rod 3 and are threadedly connected to the adjustment block 4. A groove 401 is provided on the surface of the adjustment block 4 facing the center of the adjusting slot 2, and a side clamping concave wheel 5 is rotatably connected between the upper and lower inner walls of the groove 401; the two ends of the bottom of the top frame 10 are respectively fixedly connected to the surfaces of the base 1 on the front and rear sides of the right end of the supporting slot 8, and the top of the top frame 10 is fixedly connected to a No. 2 electric push rod 11, and the bottom of the No. 2 electric push rod 11 extends The contracted end passes through the surface of the top frame 10 and is fixedly connected to the cross plate 12. Two side plates 13 are fixedly connected to the bottom of the cross plate 12, and a top clamping cam 14 is rotatably connected between the side plates 13; the right end of the base 1 is fixedly connected to a push groove 15, and the side clamping cam 5 clamps the surface of the steel pipe from the front and back sides, and the top clamping cam 14 descends and cooperates with the supporting roller 9 below to clamp the steel pipe from the upper and lower sides. Clamping in four directions at the same time improves the stability of clamping, and the side clamping cam 5, the top clamping cam 14 and the supporting roller 9 can all rotate, so it does not affect the normal loading of the steel pipe and entering the cold rolling mill.

[0025] Specifically, such as Figure 1 and Figure 2As shown, the inner side of the push groove 15 is rotatably connected to a No. 2 threaded rod 16, the surface of the No. 2 threaded rod 16 is penetrated by a threaded block 17 and is threadedly connected to the threaded block 17, and the top of the threaded block 17 is fixedly connected to a push plate 18, which can push the steel pipe to move so that it enters the cold rolling mill for processing, and the area of the push plate 18 meets actual needs and can completely cover the cross-section of the steel pipe.

[0026] It is worth noting that if Figure 1 As shown, the outer surface of the right end of the push groove 15 is fixedly connected to the No. 2 motor 161, and the outer end of the transmission shaft of the No. 2 motor 161 is fixedly connected to one end of the No. 2 threaded rod 16. After the No. 2 motor 161 is started, it drives the No. 2 threaded rod 16 to rotate, causing the threaded block 17 to move with the push plate 18, thereby pushing the steel pipe.

[0027] It is worth noting that if Figure 1 and Figure 2 As shown, the outer surface of the base 1 in the horizontal position of the No. 1 threaded rod 3 is fixedly connected to the No. 1 motor 301, and the outer end of the transmission shaft of the No. 1 motor 301 is fixedly connected to one end of the No. 1 threaded rod 3. After the No. 1 motor 301 is started, it will drive the No. 1 threaded rod 3 to rotate. During the rotation process, the adjustment block 4 and the side clamping cam 5 will approach each other to clamp the steel pipe.

[0028] It is worth noting that the top clamping cam 14 is located at the center of the front-to-back direction of the support roller 9, and the support groove 8 and the lifting groove 6 are located at the center of the front-to-back direction of the top end of the base 1. Therefore, the top clamping cam 14 can further limit the steel pipe after the side clamping cam 5 completes the clamping of the steel pipe, so that the steel pipe is located in the center of the support groove 8 for easy alignment.

[0029] It should also be noted that in order to facilitate the alignment of steel pipes of different sizes with the cold rolling mill, the base 1 as a whole can also be set to lift to cooperate with the alignment of the steel pipes. The lifting mechanism can adopt hydraulic cylinders, electric lifting rods, etc. Since the technology is relatively mature and it is not a technical solution that needs to be protected by this utility model, it will not be described in detail and can be selected according to actual conditions.

[0030] It is worth noting that if Figure 2 As shown, the support groove 8 is parallel to the surface of the base 1, and the surface of the support roller 9 is slightly lower than the top surface of the support groove 8, thereby ensuring that each support roller 9 can contact the steel pipe and provide maximum support to the steel pipe.

[0031] It is worth noting that if Figure 2As shown, the left and right inner walls of the lifting slot 6 are both provided with limiting slots 601, and the left and right side walls of the supporting slot 8 are both fixedly connected with limiting blocks 801. The limiting blocks 801 are located on the inner side of the limiting slot 601 and are slidably connected to the inner surface of the limiting slot 601. The limiting blocks 801 and the limiting slot 601 can enable the supporting slot 8 to remain stable and always horizontal during the lifting process, and will not completely separate from the lifting slot 6.

[0032] Since the cold rolling process is reciprocating, the steel pipe needs to move back and forth. When the steel pipe needs to return, it can be achieved by adjusting the motor at the top of the block 4. The output end of the motor's transmission shaft is connected to the rotating shaft of the side clamping cam 5. Therefore, after the side clamping cam 5 rotates, the steel pipe can be re-exported, and the push plate 18 can be used to make the steel pipe move back and forth.

[0033] In actual use, the steel pipe is placed on the support roller 9 of the support groove 8, and the side clamping cam wheels 5 are moved closer to each other under the action of the rotation of the No. 1 threaded rod 3, clamping the surface of the steel pipe from the front and back sides, and the No. 2 electric push rod 11 is started and then lowered to drive the top clamping cam wheel 14 to drop, cooperating with the support roller 9 below to clamp the steel pipe from the upper and lower sides. Clamping in four directions at the same time improves the stability of clamping, and the side clamping cam wheel 5, the top clamping cam wheel 14 and the support roller 9 can all rotate, so it does not affect the normal feeding of the steel pipe and its entry into the cold rolling mill. At the same time, the steel pipe is lifted and lowered through the lifting groove 6, the No. 1 electric push rod 7 and the support roller 9. The groove 8 can always provide support during the clamping and moving of the steel pipe. After the side clamping cam 5 clamps the steel pipe, the steel pipe may be suspended in the air. At this time, the No. 1 electric push rod 7 is started, driving the support groove 8 to rise, so that the support roller 9 can contact the steel pipe, allowing the steel pipe to remain horizontal, facilitating the clamping of the top clamping cam 14 and the subsequent movement into the cold rolling mill, avoiding the problem that the steel pipe cannot be aligned with the feed port of the cold rolling mill due to inclination. After the clamping and support are completed, the push plate 18 pushes one end of the steel pipe driven by the No. 2 threaded rod 16 and the threaded block 17, so that the steel pipe moves horizontally into the cold rolling mill.

[0034] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0035] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A clamping device for a steel pipe rolling device, comprising a base (1), a top frame (10), a support groove (8) and a push groove (15), characterized in that: The top of the base (1) is provided with a lifting groove (6), the inner bottom of the lifting groove (6) is fixedly connected to two No. 1 electric push rods (7), the top of the No. 1 electric push rod (7) is fixedly connected to a support groove (8), and the inner side of the support groove (8) is rotatably connected to a plurality of support rollers (9); the surface of the base (1) on the left side of the support groove (8) is provided with an adjustment groove (2) perpendicular to the lifting groove (6), and a No. 1 threaded rod (3) is rotatably connected between the front and rear inner side walls of the adjustment groove (2), and the surface of the No. 1 threaded rod (3) is penetrated by two adjustment blocks (4) and is threadedly connected to the adjustment blocks (4), and the adjustment blocks (4) are oriented toward the center of the adjustment groove (2). A groove (401) is provided on the surface of one side, and a side clamping concave wheel (5) is rotatably connected between the upper and lower inner walls of the groove (401); the two ends of the bottom of the top frame (10) are respectively fixedly connected to the surface of the base (1) on the front and rear sides of the right end of the support groove (8); the top of the top frame (10) is fixedly connected to a No. 2 electric push rod (11); the bottom telescopic end of the No. 2 electric push rod (11) passes through the surface of the top frame (10) and is fixedly connected to the horizontal plate (12); the bottom of the horizontal plate (12) is fixedly connected to two side plates (13), and a top clamping concave wheel (14) is rotatably connected between the side plates (13); the right end of the base (1) is fixedly connected to a push groove (15).

2. The clamping device for a steel pipe rolling device according to claim 1, characterized in that: The inner side of the push groove (15) is rotatably connected to a No. 2 threaded rod (16), the surface of the No. 2 threaded rod (16) is penetrated by a threaded block (17) and is threadedly connected to the threaded block (17), and the top end of the threaded block (17) is fixedly connected to a push plate (18).

3. The clamping device for a steel pipe rolling device according to claim 1, characterized in that: The outer surface of the right end of the push groove (15) is fixedly connected to a No. 2 motor (161), and the outer end of the transmission shaft of the No. 2 motor (161) is fixedly connected to one end of the No. 2 threaded rod (16).

4. The clamping device for a steel pipe rolling device according to claim 1, characterized in that: The outer surface of the base (1) at the horizontal position of the No. 1 threaded rod (3) is fixedly connected to the No. 1 motor (301), and the outer end of the transmission shaft of the No. 1 motor (301) is fixedly connected to one end of the No. 1 threaded rod (3).

5. The clamping device for a steel pipe rolling device according to claim 1, characterized in that: The top clamping concave wheel (14) is located at the center of the front-back direction of the supporting roller (9), and the supporting groove (8) and the lifting groove (6) are located at the center of the front-back direction of the top end of the base (1).

6. The clamping device for a steel pipe rolling device according to claim 1, characterized in that: The support groove (8) is parallel to the surface of the base (1), and the surface of the support roller (9) is slightly lower than the top surface of the support groove (8).

7. The clamping device for a steel pipe rolling device according to claim 1, characterized in that: The left and right inner side walls of the lifting groove (6) are both provided with limiting grooves (601), and the left and right side walls of the supporting groove (8) are both fixedly connected with limiting blocks (801), and the limiting blocks (801) are located inside the limiting groove (601) and are slidably connected to the inner surface of the limiting groove (601).

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