Device for changing stainless steel round pipe into taper pipe and operation method

Abstract

The invention relates to a device for changing a stainless steel round pipe into a conical pipe and an operation method. The operation method comprises the following steps that A, a steel pipe is placed, specifically, firstly, the steel pipe is placed in a clamping barrel of a fixing frame, and when the steel pipe is placed, the steel pipe penetrates through the fixing frame and the clamping barrel; b, the steel pipe is clamped and fixed, one end of the steel pipe extends to a push cylinder of a positioning electric push cylinder, and then the steel pipe is clamped and fixed through a clamping barrel in a fixing frame; c, the steel pipe is heated, after fixing is completed, a heating pipe installed on the heating box gets close to the steel pipe through a transverse sliding rail and a first longitudinal sliding rail, and after heating is completed, the heating pipe leaves the steel pipe; d, the steel pipe is machined, after the heating pipe and the positioning electric push cylinder leave the steel pipe, the first electric push cylinder drives the mounting plate to move forwards, and the pressing roller transversely moves along the steel pipe; and E, adjusting the taper of the steel pipe.

Description

Technical Field

[0001] The invention relates to the technical field related to a round tube tapered tube, and in particular to a stainless steel round tube tapered tube device and an operating method. Background Art

[0002] Seamless tapered steel pipe refers to a conical hollow round tube with different diameters on both ends, which is made of seamless steel pipe as raw material through hot expansion process. There is no butt joint or weld in the middle of the seamless tapered steel pipe body and the surface is smooth. It is referred to as tapered tube.

[0003] The existing device for converting a round tube into a conical tube is extruded by multiple pressing plates, so that there may be residual prisms on the surface of the conical tube, which cannot ensure the smoothness of the surface of the conical tube. Therefore, when in use, the sealing of the conical tube during connection may not be guaranteed.

[0004] For this purpose, we propose a stainless steel round tube to cone tube device and an operation method. Summary of the invention

[0005] (1) Technical issues to be solved

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, meet practical needs, and provide a stainless steel round tube to conical tube device and an operating method to solve the above technical problems.

[0007] (2) Technical solution

[0008] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is a stainless steel round tube conical tube device and an operating method, the method comprising the following steps:

[0009] A. Placement of the steel pipe: First, place the steel pipe in the clamp of the fixed frame. When placing the steel pipe, pass the steel pipe through the fixed frame and the clamp;

[0010] B. Clamping and fixing of the steel pipe. After the steel pipe is placed, one end of the steel pipe is extended to the push cylinder of the positioning electric push cylinder. Then the clamp in the fixed frame clamps and fixes the steel pipe, and lifts the push rod of the positioning electric push cylinder.

[0011] C. Heating of the steel pipe: After the fixing is completed, the heating pipe installed on the heating box approaches the steel pipe through the transverse slide rail and the first longitudinal slide rail, and leaves the steel pipe after the heating is completed;

[0012] D. Processing of steel pipes: After the heating tube and the positioning electric push cylinder leave the steel pipe, the first electric push cylinder drives the mounting plate to move forward, so that the pressing roller contacts the steel pipe, and the pressing roller moves laterally along the steel pipe;

[0013] E. Adjustment of the taper of the steel pipe: the first electric push cylinder drives the pressing roller to move to the surface position of the steel pipe, and the second electric push cylinder drives the pressing roller to move along the axial direction of the steel pipe to change the diameter of the steel pipe;

[0014] The above-mentioned stainless steel round tube tapered tube device and operation method step A said steel tube tapered tube device comprises:

[0015] A pressure roller, the pressure roller is installed at the end of a connecting rod, the connecting rod is fixedly connected to the rotating table through a fixing ring at one end away from the pressure roller, and a fixing ring is arranged on the outer surface of the rotating table;

[0016] The fixed ring arranged on the rotating platform is fixedly connected to the shifting rod, and the shifting rod is fixedly connected to the push rod of the second electric push cylinder at one end away from the fixed ring;

[0017] The rotating platform is movably connected to the bearing through a rotating shaft, and the bearing is movably connected to the support at the bottom; the support is installed directly below the rotating platform;

[0018] The support column installed below the rotating table is fixedly installed on the mounting plate, and the mounting plate is slidably connected to the second longitudinal slide rail; the second longitudinal slide rail is provided with a first electric push cylinder on the side away from the pressure roller; the first electric push cylinder is movably connected to the mounting plate.

[0019] Preferably, the second longitudinal slide rail is fixedly installed on the frame on the side away from the mounting plate, and the frame is provided with a transverse slide rail and a second longitudinal slide rail on the side away from the second longitudinal slide rail; the second longitudinal slide rail is installed above the transverse slide rail, and the second longitudinal slide rail is provided with a heating box on the side away from the transverse slide rail; the heating box is fixedly connected to the second longitudinal slide rail; the heating box is provided with a heating tube on the side close to the pressure roller.

[0020] Preferably, a fixing frame is provided between the pressing roller and the heating box, the fixing frame is fixedly connected to the frame, and an adjustment plate is movably installed on the side of the fixing frame away from the frame; two double round head grooves are provided on the adjustment plate, and the adjustment plate is detachably connected to the fixing clamp frame through the two double round head grooves and the adjustment bolts;

[0021] The first longitudinal slide rail is provided with a fourth electric push cylinder on a side away from the heating box, and the transverse slide rail is provided with a third electric push cylinder on a side close to the mounting frame.

[0022] Preferably, a driving motor is provided directly below the mounting frame, and a V-belt is provided between the clamping cylinder mounted on the mounting clamp and the driving motor.

[0023] Preferably, the first electric push cylinder is movably connected to the mounting plate via a connecting block, the mounting plate is mounted on the second longitudinal slide rail, the mounting plate and the second longitudinal slide rail are slidably connected, and a limit block is provided on the second longitudinal slide rail.

[0024] Preferably, the rotating table is connected to the second electric push cylinder via a shift rod, and the rotating direction of the rotating table is opposite to the extension and retraction direction of the push rod of the second electric push cylinder.

[0025] (3) Beneficial effects:

[0026] A. A device and operation method for changing a stainless steel round tube into a tapered tube of the present invention. When placing the steel tube, the end of the steel tube away from the positioning electric push cylinder of the fixing frame is placed into the clamp inside the fixing frame, and the round tube is clamped and fixed by the clamp, which can effectively avoid contact between personnel and the heating tube in front during placement, causing burns. When the round tube is changed into a tapered tube, the second electric push cylinder drives the rotating table to rotate, thereby changing the position of the pressing roller and the surface of the steel tube. In this way, when changing the diameter, it is convenient to timely find the smoothness of the surface of the tapered tube and timely adjust the distance between the pressing roller and the steel tube;

[0027] B. A stainless steel round tube conical tube changing device and operation method of the present invention, when the round tube is conical tube changed, a positioning electric push cylinder is arranged above the fixing frame, the positioning electric push cylinder is installed at the end of the adjusting frame, two double round head grooves are provided on the adjusting frame, and the adjusting plate is fixed to the fixing frame through the double round head grooves and the adjusting bolts, so that the distance between the positioning electric push cylinder and the clamping cylinder arranged inside the fixing frame can be adjusted conveniently, thereby adjusting the length of the round tube conical tube;

[0028] C. A device and operating method for converting a stainless steel round tube into a tapered tube of the present invention. The round tube needs to be heated before it is converted into a tapered tube. The heating tube is connected to the first longitudinal slide rail through a heating box. The first longitudinal slide rail is installed on the transverse slide rail. In this way, automatic heating is achieved through the two slide rails during heating. When the round tube is converted into a tapered tube, the original hardness of the round tube can be changed, so that the working efficiency of the pressure roller can be greatly improved when the diameter is changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 2 is a schematic diagram of the three-dimensional structure of a stainless steel round tube-conical tube device according to an embodiment of the present invention;

[0030] Figure 2 The stainless steel round tube to cone tube device in the embodiment of the present invention Figure 1 Schematic diagram of the rear structure;

[0031] Figure 3 1 is a bottom view of the structure of the stainless steel round tube to conical tube device according to an embodiment of the present invention;

[0032] Figure 4 The stainless steel round tube conical tube device in the embodiment of the present invention Figure 1 A top view of

[0033] Figure 5 The stainless steel round tube conical tube device in the embodiment of the present invention Figure 1 Schematic diagram of the local structure at point A.

[0034] The reference numerals are as follows:

[0035] 1. Frame; 2. Heating box; 3. Heating tube; 4. Horizontal slide rail; 5. First longitudinal slide rail; 6. Adjustment plate; 7. Adjustment bolt; 8. Positioning electric push cylinder; 9. Fixed frame; 10. Round tube; 11. First electric push cylinder; 12. Second electric push cylinder; 13. Second longitudinal slide rail; 14. Mounting plate; 15. Clamp; 16. Third electric push cylinder; 17. Fourth electric push cylinder; 18. Rotating table; 19. Bearing; 20. Connecting rod; 21. Press roller; 22. Fixed ring; 23. Fixed ring; 24. Push rod. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1 To Attachment Figure 5 The present invention is further described with examples:

[0037] A stainless steel round tube conical tube device and operation method, characterized in that it comprises the following steps:

[0038] A. Placement of the steel pipe: First, place the steel pipe in the clamp of the fixed frame. When placing the steel pipe, pass the steel pipe through the fixed frame and the clamp;

[0039] B. Clamping and fixing of the steel pipe. After the steel pipe is placed, one end of the steel pipe is extended to the push cylinder of the positioning electric push cylinder. Then the clamp in the fixed frame clamps and fixes the steel pipe, and lifts the push rod of the positioning electric push cylinder.

[0040] C. Heating of the steel pipe: After the fixing is completed, the heating pipe installed on the heating box approaches the steel pipe through the transverse slide rail and the first longitudinal slide rail, and leaves the steel pipe after the heating is completed;

[0041] D. Processing of steel pipes: After the heating tube and the positioning electric push cylinder leave the steel pipe, the first electric push cylinder drives the mounting plate to move forward, so that the pressing roller contacts the steel pipe, and the pressing roller moves laterally along the steel pipe;

[0042] E. Adjustment of the taper of the steel pipe: the first electric push cylinder drives the pressing roller to move to the surface position of the steel pipe, and the second electric push cylinder drives the pressing roller to move along the axial direction of the steel pipe to change the diameter of the steel pipe;

[0043] The above-mentioned stainless steel round tube tapered tube device and operation method step A said steel tube tapered tube device comprises:

[0044] A pressure roller 21, the pressure roller 21 is installed at the end of the connecting rod 20, the connecting rod 20 is fixedly connected to the rotating table 18 through a fixing ring 22 at one end away from the pressure roller 21, and a fixing ring 23 is provided on the outer surface of the rotating table 18;

[0045] The fixed ring 23 disposed on the rotating platform 18 is fixedly connected to the lever 24, and the lever 24 is fixedly connected to the push rod of the second electric push cylinder 12 at one end away from the fixed ring 23;

[0046] The rotating platform 18 is movably connected to the bearing 19 via a rotating shaft, and the bearing is movably connected to the support at the bottom; the support is installed directly below the rotating platform 18;

[0047] The support column installed below the rotating table 18 is fixedly mounted on the mounting plate 14, and the mounting plate 14 is slidably connected to the second longitudinal slide rail 13; the second longitudinal slide rail 13 is provided with a first electric push cylinder 11 on the side away from the pressure roller 21; the first electric push cylinder 11 is movably connected to the mounting plate 14.

[0048] Specifically, the second longitudinal slide rail 13 is fixedly installed on the frame 1 on the side away from the mounting plate 14, and the frame 1 is provided with a transverse slide rail 4 and a second longitudinal slide rail 5 on the side away from the second longitudinal slide rail 13; the second longitudinal slide rail 5 is installed above the transverse slide rail 4, and the second longitudinal slide rail 5 is provided with a heating box 2 on the side away from the transverse slide rail 4; the heating box 2 is fixedly connected to the second longitudinal slide rail 5; the heating box 2 is provided with a heating tube 3 on the side close to the pressure roller 21.

[0049] During specific use, the round tube 10 is placed inside the clamp 15 inside the fixed frame 9, the round tube 15 is fixedly clamped by the clamp 15, and the clamp 15 is driven to rotate by the driving motor; the positioning electric push cylinder 8 at the end of the adjusting plate 6 installed above the fixed frame 9 is used to fix the extension length of the round tube 10, and two double round head grooves are provided on the adjusting plate 6, and the adjusting plate 6 is adjusted by the double round head grooves and the adjusting bolts, so that the distance between the positioning electric push cylinder and the clamp 15 can be adjusted, thereby determining the length of the conical tube of the round tube 10.

[0050] Specifically, a fixing frame 9 is provided between the pressing roller 21 and the heating box 2, and the fixing frame 9 is fixedly connected to the frame 1. An adjusting plate 6 is movably installed on the fixing frame 9 at a side away from the frame 1; two double round head grooves are provided on the adjusting plate 6, and the adjusting plate 6 is detachably connected to the fixing clamp frame 9 through the two double round head grooves and the adjusting bolts 7;

[0051] The first longitudinal slide rail 5 is provided with a fourth electric push cylinder 17 on a side away from the heating box 2 , and the transverse slide rail 4 is provided with a third electric push cylinder 16 on a side close to the mounting frame 9 .

[0052] Specifically, a driving motor is provided directly below the mounting frame 9, and a V-belt is provided between the clamping cylinder 15 installed on the mounting clamp 9 and the driving motor;

[0053] The rotating platform 18 is connected to the second electric push cylinder 12 via a lever 24 , and the rotating direction of the rotating platform 18 is opposite to the extension and retraction direction of the push rod of the second electric push cylinder 12 .

[0054] During specific use, when the round tube 10 changes into a tapered tube, the round tube 10 is first heated by the heating tube 3, and the round tube 10 is heated to a red-hot state. The heating tube 3 moves away from or close to the round tube 10 through the heating box 2. In this way, during heating, the heating box 2 is driven to move laterally by the third electric push cylinder 16. The heating box 2 is installed on the first longitudinal slide rail 5, and a fourth electric push cylinder 17 is provided on the side of the first longitudinal slide rail 5 away from the heating box 2. In this way, the heating box 3 and the heating tube 3 can move longitudinally. When approaching the round tube 10, the heating box 2 is first driven to move laterally by the third electric push cylinder 16, and then the heating box 2 is driven to move longitudinally by the fourth electric push cylinder 17. When the heating tube 3 and the round tube 10 are on the same axis, the third electric push cylinder 16 is used to drive the heating tube 2 to move laterally to the position where the round tube 10 needs to change its diameter for heating treatment.

[0055] When the heating is completed, the heating tube 3 is first driven away from the fixing frame 9 by the third electric push cylinder 16, and then moved to the side away from the pressing roller 21 by the fourth electric push cylinder 17, so that the heating tube 3 can automatically approach or move away from the round tube 10, preventing burns when people are operating;

[0056] At this time, the first electric push cylinder 11 drives the mounting plate 14 to move on the second longitudinal slide rail 13, and the mounting plate 14 is slidably connected to the second longitudinal slide rail 13, thereby driving the column on the mounting plate 14 to move, and a rotating table 18 is movably connected to the end of the column away from the mounting plate 14 through a bearing 19, and a fixed ring 23 is arranged on the surface of the rotating table 18, and the fixed ring 23 is fixedly connected to the push rod of the second electric push cylinder 12 through a lever 24. In this way, when the push rod of the second electric push cylinder 12 extends forward, it drives the rotating table 18 to rotate counterclockwise, and the rotating table 18 is fixedly connected to the connecting rod 20 through a fixing ring 22, and a pressing roller 21 is installed at the end of the connecting rod 20 away from the fixing ring 22; when the rotating table 18 rotates counterclockwise, the pressing roller 21 moves to one side of the fixed frame 9, so that the pressing roller 21 can perform a conical tube processing on the heated round tube 10.

[0057] Specifically, when the processing is completed, the first electric push cylinder 11 is used to drive the mounting plate 14 to move to the side away from the heating tube 3, and then the push rod of the second electric push cylinder 12 is retracted backward, so that the pressing roller 21 is restored to the initial position, which is convenient for the tapered tube processing of the next round tube 10.

[0058] When in use, after the round tube 10 is transformed into a tapered tube, the driving motor is stopped, and the clamp 15 stops rotating. The clamp 15 is opened to take out the round tube 10 inside, and then the next round tube 10 is transformed into a tapered tube.

[0059] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A stainless steel round tube to conical tube device and operation method, characterized in that: The steps include: A. Placement of the steel pipe: First, place the steel pipe in the clamp of the fixed frame. When placing the steel pipe, pass the steel pipe through the fixed frame and the clamp; B. Clamping and fixing of the steel pipe. After the steel pipe is placed, one end of the steel pipe is extended to the push cylinder of the positioning electric push cylinder. Then the clamp in the fixed frame clamps and fixes the steel pipe, and lifts the push rod of the positioning electric push cylinder. C. Heating of the steel pipe: After the fixing is completed, the heating pipe installed on the heating box approaches the steel pipe through the transverse slide rail and the first longitudinal slide rail, and leaves the steel pipe after the heating is completed; D. Processing of steel pipes: After the heating tube and the positioning electric push cylinder leave the steel pipe, the first electric push cylinder drives the mounting plate to move forward, so that the pressing roller contacts the steel pipe, and the pressing roller moves laterally along the steel pipe; E. Adjustment of the taper of the steel pipe: the first electric push cylinder drives the pressing roller to move to the surface position of the steel pipe, and the second electric push cylinder drives the pressing roller to move along the axial direction of the steel pipe to change the diameter of the steel pipe; The steel pipe tapered tube device described in step A of the above-mentioned stainless steel round pipe tapered tube device and operation method comprises: a pressure roller (21), the pressure roller (21) is installed at the end of a connecting rod (20), the connecting rod (20) is fixedly connected to a rotating table (18) through a fixing ring (22) at the end away from the pressure roller (21), and a fixing ring (23) is arranged on the outer surface of the rotating table (18); The fixed ring (23) arranged on the rotating platform (18) is fixedly connected to the shifting rod (24), and the shifting rod (24) is fixedly connected to the push rod of the second electric push cylinder (12) at one end away from the fixed ring (23); The rotating platform (18) is movably connected to the bearing (19) via a rotating shaft, and the bearing is movably connected to a support at the bottom; the support is installed directly below the rotating platform (18); The support column installed below the rotating table (18) is fixedly mounted on the mounting plate (14), and the mounting plate (14) is slidably connected to the second longitudinal slide rail (13); the second longitudinal slide rail (13) is provided with a first electric push cylinder (11) on the side away from the pressure roller (21); the first electric push cylinder (11) is movably connected to the mounting plate (14).

2. According to claim 1, a stainless steel round tube to cone tube device and operation method, characterized in that: The second longitudinal slide rail (13) is fixedly mounted on the frame (1) on the side away from the mounting plate (14); the frame (1) is provided with a transverse slide rail (4) and a second longitudinal slide rail (5) on the side away from the second longitudinal slide rail (13); the second longitudinal slide rail (5) is installed above the transverse slide rail (4); the second longitudinal slide rail (5) is provided with a heating box (2) on the side away from the transverse slide rail (4); the heating box (2) is fixedly connected to the second longitudinal slide rail (5); the heating box (2) is provided with a heating tube (3) on the side close to the pressure roller (21).

3. According to claim 2, a stainless steel round tube to conical tube device and operation method, characterized in that: A fixing frame (9) is arranged between the pressing roller (21) and the heating box (2); the fixing frame (9) is fixedly connected to the frame (1); an adjusting plate (6) is movably mounted on the fixing frame (9) at a side away from the frame (1); two double round-head grooves are arranged on the adjusting plate (6); the adjusting plate (6) is detachably connected to the fixing clamp frame (9) via the two double round-head grooves and the adjusting bolts (7); A positioning electric push cylinder (8) is provided at the end of the adjustment plate (6); a push rod of the positioning electric push cylinder (8) passes through the adjustment plate (6) and extends to the center line position of the clamping cylinder (15) installed in the middle position of the fixing frame (9);.

4. According to claim 2, a stainless steel round tube to conical tube device and operation method, characterized in that: The first longitudinal slide rail (5) is provided with a fourth electric push cylinder (17) on the side away from the heating box (2), and the transverse slide rail (4) is provided with a third electric push cylinder (16) on the side close to the mounting frame (9).

5. According to claim 4, a stainless steel round tube to conical tube device and operation method, characterized in that: A driving motor is arranged directly below the mounting frame (9), and a V-belt is arranged between the clamping cylinder (15) mounted on the mounting clamp (9) and the driving motor.

6. According to claim 1, a stainless steel round tube to conical tube device and operation method, characterized in that: The first electric push cylinder (11) is movably connected to the mounting plate (14) via a connecting block; the mounting plate (14) is mounted on the second longitudinal slide rail (13); the mounting plate (14) and the second longitudinal slide rail (13) are slidably connected; a limit block is provided on the second longitudinal slide rail (13).

7. According to claim 1, a stainless steel round tube to conical tube device and operation method, characterized in that: The rotating platform (18) is connected to the second electric push cylinder (12) via a lever (24); the rotating direction of the rotating platform (18) is opposite to the telescopic direction of the push rod of the second electric push cylinder (12).

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