Seamless steel tube production rolling process

Abstract

The invention relates to steel pipe production, in particular to a seamless steel pipe production rolling technology which comprises the following steps that firstly, a seamless steel pipe needing to be rolled and shaped penetrates through the position between two material conveying mechanisms; secondly, the two material conveying mechanisms drive the seamless steel pipe to pass through the multiple rolling mechanisms and the multiple clamping mechanisms; thirdly, the clamping mechanism clamps the seamless steel pipe, and the clamping mechanism assists the rolling mechanism in rolling and shaping the seamless steel pipe; the steel pipe can be rolled and plasticized, and bending of the steel pipe is corrected.

Description

Technical Field

[0001] The invention relates to steel pipe production, and more specifically to a seamless steel pipe production rolling process. Background Art

[0002] Rolling is an important method of metal processing. It uses the pressure of the rollers at a certain temperature to cause the metal material to undergo plastic deformation, thereby changing its shape and size. For example, the patent publication number CN211218038U discloses a super-large reducing mill steel pipe rolling device. The steel pipe rolling device includes a spline hub coupling, a spline long shaft, a plane bearing, a bushing 1, a spiral bevel gear, a spherical roller bearing, a bushing 2, a roller assembly, a reducing mill frame, and a reducing mill hook. However, the disadvantage of this patent is that it is impossible to roll and plasticize the steel pipe and correct the bending of the steel pipe. Summary of the invention

[0003] The purpose of the present invention is to provide a seamless steel pipe production rolling process, which can roll and plasticize the steel pipe and correct the bending of the steel pipe.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A seamless steel pipe production rolling process, the process comprising the following steps:

[0006] Step 1: Pass the seamless steel pipe to be rolled and shaped through the two material transport mechanisms;

[0007] Step 2: Two material transport mechanisms drive the seamless steel pipe through multiple rolling mechanisms and multiple clamping mechanisms;

[0008] Step 3: The clamping mechanism clamps the seamless steel pipe, and the clamping mechanism assists the rolling mechanism to roll and shape the seamless steel pipe.

[0009] A seamless steel pipe production rolling device comprises two material transport mechanisms, a plurality of rolling mechanisms are fixedly connected between the two material transport mechanisms, and two clamping mechanisms are fixedly connected between two adjacent rolling mechanisms;

[0010] The material transport mechanism includes two sliding brackets, each of which is rotatably connected to a screw rod I at both ends, and each of which is slidably connected to a sliding seat at both ends, and the four sliding seats are respectively connected to four screw rods I by threads, and two driving shafts are rotatably connected between the four sliding seats, and each driving shaft is slidably connected to two conical wheels, and each conical wheel is fixedly connected to a positioning sleeve, and each positioning sleeve is threadedly connected to a positioning nail;

[0011] The sliding bracket is fixedly connected with a power mechanism I for driving the screw rod I to rotate, and the power mechanism I is preferably a servo motor;

[0012] The sliding seat is fixedly connected with a power mechanism II for driving the driving shaft to rotate, and the power mechanism II is preferably a servo motor;

[0013] The rolling mechanism includes two transverse moving brackets, both of which are rotatably connected to a screw rod II, both of which are slidably connected to a lifting bracket, which is threadedly connected to the screw rod II, and the lifting bracket is rotatably connected to a screw rod III, and the lifting bracket is slidably connected to a sliding seat III, which is threadedly connected to the screw rod III, a support ring is rotatably connected between the two sliding seats III, a rotating sleeve is rotatably connected to the support ring, a threaded disk is rotatably connected to the rotating sleeve, and a plurality of sliding seats II are slidably connected to the rotating sleeve, and the plurality of sliding seats II are threadedly connected to the threaded disk, and each sliding seat II is rotatably connected to a rolling wheel, and a plurality of transverse moving brackets located on the same side are fixedly connected side by side;

[0014] A power mechanism III for driving the screw rod II to rotate is fixedly connected to the transverse bracket, and the power mechanism III is preferably a servo motor;

[0015] The sliding seat III is fixedly connected with a power mechanism IV for driving the screw rod III to rotate, and the power mechanism IV is preferably a servo motor;

[0016] The support ring is fixedly connected with a power mechanism V for driving the rotating sleeve to rotate, and the power mechanism V is preferably a servo motor;

[0017] The clamping mechanism comprises a telescopic mechanism, a clamping bracket is fixedly connected to the telescopic end of the telescopic mechanism, a diamond wheel is rotatably connected to the clamping bracket, and the telescopic mechanism is fixedly connected between two adjacent transverse brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the production and rolling process of the seamless steel pipe of the present invention;

[0020] Figure 2 It is a schematic diagram of a seamless steel pipe production and rolling device of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the material transport mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the rolling mechanism structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the clamping mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the sliding bracket and the transverse moving bracket of the present invention;

[0025] Figure 7 It is a schematic diagram of the rolling mechanism structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the rolling mechanism structure of the present invention.

[0027] In the figure: material transport mechanism 10; sliding bracket 11; screw rod Ⅰ12; sliding seat 13; driving shaft 14; conical wheel 15; positioning sleeve 16; rolling mechanism 20; transverse support 21; screw rod Ⅱ22; lifting bracket 23; screw rod III24; support ring 25; rotating sleeve 26; threaded disk 27; sliding seat II28; rolling wheel 29; sliding seat III210; clamping mechanism 30; telescopic mechanism 31; clamping bracket 32; diamond wheel 33. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 As shown, in order to achieve the technical effect of "rolling and plasticizing the steel pipe and correcting the bending of the steel pipe", the steps and functions of a seamless steel pipe production rolling process are described in detail below;

[0030] A seamless steel pipe production rolling process, the process comprising the following steps:

[0031] Step 1: Pass the seamless steel pipe to be rolled and shaped through the two material transport mechanisms 10;

[0032] Step 2: two material transport mechanisms 10 drive the seamless steel pipe to pass between multiple rolling mechanisms 20 and multiple clamping mechanisms 30;

[0033] Step three: the clamping mechanism 30 clamps the seamless steel pipe, and the clamping mechanism 30 assists the rolling mechanism 20 to roll and shape the seamless steel pipe.

[0034] like Figures 2 to 8 As shown, in order to facilitate the implementation of a seamless steel pipe production and rolling process, a seamless steel pipe production and rolling device is designed. The structure and function of the seamless steel pipe production and rolling are described in detail below;

[0035] A seamless steel pipe production rolling device comprises two material transport mechanisms 10, a plurality of rolling mechanisms 20 are fixedly connected between the two material transport mechanisms 10, and two clamping mechanisms 30 are fixedly connected between two adjacent rolling mechanisms 20;

[0036] When in use, the seamless steel pipe to be rolled and shaped can be passed between the two material conveying mechanisms 10. Figure 2As shown, the seamless steel pipe passes through the material conveying mechanism 10, multiple rolling mechanisms 20, multiple clamping mechanisms 30 and the material conveying mechanism 10 in sequence, and the material conveying mechanism 10 can drive the seamless steel pipe to continuously move forward, so that the seamless steel pipe continuously passes through the multiple rolling mechanisms 20 and the multiple clamping mechanisms 30, and the two clamping mechanisms 30 located at the same position can clamp the seamless steel pipe, and the rolling mechanism 20 can roll and shape the seamless steel pipe;

[0037] The material transport mechanism 10 includes two sliding brackets 11, each of which is rotatably connected to a screw rod Ⅰ12 at both ends, and each of which is slidably connected to a sliding seat 13 at both ends. The four sliding seats 13 are respectively connected to the four screw rods Ⅰ12 by threads, and two driving shafts 14 are rotatably connected between the four sliding seats 13. Two conical wheels 15 are slidably connected to each driving shaft 14, and each conical wheel 15 is fixedly connected to a positioning sleeve 16, and each positioning sleeve 16 is threadedly connected to a positioning nail;

[0038] The sliding bracket 11 is fixedly connected with a power mechanism I for driving the screw rod I 12 to rotate, and the power mechanism I is preferably a servo motor;

[0039] The sliding seat 13 is fixedly connected with a power mechanism II for driving the driving shaft 14 to rotate, and the power mechanism II is preferably a servo motor;

[0040] The rolling mechanism 20 includes two transverse moving brackets 21, both of which are rotatably connected to a screw rod II 22, both of which are slidably connected to a lifting bracket 23, which is threadedly connected to the screw rod II 22, and the lifting bracket 23 is rotatably connected to a screw rod III 24, and the lifting bracket 23 is slidably connected to a sliding seat III 210, which is threadedly connected to the screw rod III 24, and a support ring 25 is rotatably connected between the two sliding seats III 210, and a rotating sleeve 26 is rotatably connected to the support ring 25, and a threaded disk 27 is rotatably connected to the rotating sleeve 26, and a plurality of sliding seats II 28 are slidably connected to the rotating sleeve 26, and the plurality of sliding seats II 28 are threadedly connected to the threaded disk 27, and each sliding seat II 28 is rotatably connected to a rolling wheel 29, and a plurality of transverse moving brackets 21 located on the same side are fixedly connected side by side;

[0041] A power mechanism III for driving the screw rod II 22 to rotate is fixedly connected to the transverse moving bracket 21, and the power mechanism III is preferably a servo motor;

[0042] The sliding seat III 210 is fixedly connected with a power mechanism IV for driving the screw rod III 24 to rotate, and the power mechanism IV is preferably a servo motor;

[0043] The support ring 25 is fixedly connected with a power mechanism V for driving the rotating sleeve 26 to rotate, and the power mechanism V is preferably a servo motor;

[0044] The clamping mechanism 30 includes a telescopic mechanism 31, a clamping bracket 32 ​​is fixedly connected to the telescopic end of the telescopic mechanism 31, a diamond wheel 33 is rotatably connected to the clamping bracket 32, and the telescopic mechanism 31 is fixedly connected between two adjacent transverse moving brackets 21;

[0045] When using, Figure 2 As shown, one end of the seamless steel pipe is inserted between four conical wheels 15 of a material transport mechanism 10, and the power mechanism I is started. The output shaft of the power mechanism I starts to rotate, and the output shaft of the power mechanism I drives the screw rod I 12 to rotate. When the screw rod I 12 rotates, it drives the sliding seat 13 to move through the thread, and the sliding seat 13 drives the driving shaft 14 to move. The driving shaft 14 drives the two conical wheels 15 to move, and then the relative distance between the conical wheels 15 on the upper and lower sides is adjusted, so that the conical wheels 15 can transport seamless steel pipes of different diameters;

[0046] Furthermore, the conical wheel 15 can be pushed to slide on the driving shaft 14, thereby adjusting the position of the conical wheel 15 so that the conical wheel 15 can transport seamless steel pipes of different diameters. After the position of the conical wheel 15 is adjusted, the positioning pins connected by threads on the positioning sleeve 16 are rotated to fix the position of the conical wheel 15.

[0047] The power mechanism II is started, and the output shaft of the power mechanism II starts to rotate, and the output shaft of the power mechanism II drives the driving shaft 14 to rotate, and the driving shaft 14 drives the conical wheel 15 to rotate when rotating, and the conical wheel 15 drives the seamless steel pipe to move, so that the seamless steel pipe moves between the multiple rolling mechanisms 20 and the multiple clamping mechanisms 30;

[0048] The threaded disk 27 is rotated. When the threaded disk 27 rotates, the multiple sliding seats II 28 are driven to move through the threads, so that the multiple sliding seats II 28 are close to or away from each other, and the sliding seat II 28 drives the rolling wheel 29 to move, so that the multiple rolling wheels 29 are close to or away from each other, thereby adapting to seamless steel pipes of different diameters. Further, the power mechanism V is started, and the output shaft of the power mechanism V starts to rotate. The output shaft of the power mechanism V drives the rotating sleeve 26 to rotate, and the rotating sleeve 26 drives the multiple rolling wheels 29 to rotate, so that the rolling wheels 29 rotate around the seamless steel pipe, and the multiple rolling wheels 29 roll and shape the seamless steel pipe; it should be noted that the seamless steel pipe here needs to be heated in advance;

[0049] Further, the power mechanism III is started, and the output shaft of the power mechanism III starts to rotate, and the output shaft of the power mechanism III drives the screw rod II 22 to rotate. When the screw rod II 22 rotates, it drives the rolling mechanism 20 to move through the thread, thereby adjusting the lateral position of the rolling mechanism 20, so that the rolling mechanism 20 can roll and shape different positions of the seamless steel pipe;

[0050] Further, when the curvature of the seamless steel pipe needs to be corrected, the power mechanism IV is started, the output shaft of the power mechanism IV starts to rotate, the output shaft of the power mechanism IV drives the screw rod III24 to rotate, and when the screw rod III24 rotates, the sliding seat III210 is driven to move through the thread, thereby adjusting the height of the sliding seat III210, and the sliding seat III210 drives the multiple rolling wheels 29 to move, so that the rolling wheels 29 pull and shape the curved outer part of the seamless steel pipe;

[0051] Further, the power mechanism V is started, the output shaft of the power mechanism V starts to rotate, the output shaft of the power mechanism V drives the rotating sleeve 26 to swing, and the rotating sleeve 26 drives the multiple rolling wheels 29 to move, so that the multiple rolling wheels 29 can twist the seamless steel pipe and shape the seamless steel pipe;

[0052] Further, the telescopic mechanism 31 is started. The telescopic mechanism 31 can be a hydraulic cylinder or an electric push rod. The telescopic end of the telescopic mechanism 31 drives the clamping bracket 32 ​​to move, and the clamping bracket 32 ​​drives the diamond wheel 33 to move, so that the diamond wheel 33 clamps the side edges, thereby fixing the seamless steel pipe, and the auxiliary control mechanism 20 performs bending correction on the seamless steel pipe.

Claims

1. A seamless steel pipe production rolling process, characterized in that: The process includes the following steps: Step 1: Pass the seamless steel pipe to be rolled and shaped through two material transport mechanisms (10); Step 2: two material transport mechanisms (10) drive the seamless steel pipe to pass between a plurality of rolling mechanisms (20) and a plurality of clamping mechanisms (30); Step three: The clamping mechanism (30) clamps the seamless steel pipe, and the clamping mechanism (30) assists the rolling mechanism (20) in rolling and shaping the seamless steel pipe.

2. A seamless steel pipe production and rolling process according to claim 1, characterized in that: The process uses a seamless steel pipe production rolling device, which comprises two material transport mechanisms (10), a plurality of rolling mechanisms (20) are fixedly connected between the two material transport mechanisms (10), and two clamping mechanisms (30) are fixedly connected between two adjacent rolling mechanisms (20).

3. A seamless steel pipe production and rolling process according to claim 2, characterized in that: The material transport mechanism (10) comprises two sliding brackets (11), each of the upper and lower ends of the sliding bracket (11) is rotatably connected to a screw rod I (12), each of the upper and lower ends of the sliding bracket (11) is slidably connected to a sliding seat (13), the four sliding seats (13) are respectively connected to the four screw rods I (12) by threads, two driving shafts (14) are rotatably connected between the four sliding seats (13), each of the driving shafts (14) is slidably connected to two conical wheels (15), each of the conical wheels (15) is fixedly connected to a positioning sleeve (16), and each of the positioning sleeves (16) is threadedly connected to a positioning pin.

4. A seamless steel pipe production and rolling process according to claim 3, characterized in that: The sliding bracket (11) is fixedly connected with a power mechanism I for driving the screw rod I (12) to rotate.

5. A seamless steel pipe production and rolling process according to claim 3, characterized in that: The sliding seat (13) is fixedly connected with a power mechanism II for driving the driving shaft (14) to rotate.

6. A seamless steel pipe production and rolling process according to claim 3, characterized in that: The rolling mechanism (20) comprises two transverse moving brackets (21), both of which are rotatably connected to a screw rod II (22), both of which are slidably connected to a lifting bracket (23), the lifting bracket (23) is connected to the screw rod II (22) by threads, the lifting bracket (23) is rotatably connected to a screw rod III (24), the lifting bracket (23) is slidably connected to a sliding seat III (210), and the sliding seat III (210) is connected to the screw rod III (24) by threads. A support ring (25) is rotatably connected between the two sliding seats III (210), a rotating sleeve (26) is rotatably connected to the support ring (25), a threaded disk (27) is rotatably connected to the rotating sleeve (26), a plurality of sliding seats II (28) are slidably connected to the rotating sleeve (26), the plurality of sliding seats II (28) are all connected to the threaded disk (27) by threads, a rolling wheel (29) is rotatably connected to each sliding seat II (28), and a plurality of transverse supports (21) located on the same side are fixedly connected side by side.

7. A seamless steel pipe production and rolling process according to claim 6, characterized in that: The transverse moving bracket (21) is fixedly connected with a power mechanism III for driving the screw rod II (22) to rotate.

8. A seamless steel pipe production and rolling process according to claim 6, characterized in that: The sliding seat III (210) is fixedly connected with a power mechanism IV for driving the screw rod III (24) to rotate.

9. A seamless steel pipe production and rolling process according to claim 6, characterized in that: The support ring (25) is fixedly connected with a power mechanism V for driving the rotating sleeve (26) to rotate.

10. A seamless steel pipe production and rolling process according to claim 6, characterized in that: The clamping mechanism (30) comprises a telescopic mechanism (31), a clamping bracket (32) is fixedly connected to the telescopic end of the telescopic mechanism (31), a diamond wheel (33) is rotatably connected to the clamping bracket (32), and the telescopic mechanism (31) is fixedly connected between two adjacent transverse brackets (21).

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