Precise steel pipe end thread machining equipment

Abstract

The utility model relates to the field of thread machining equipment, in particular to precise steel pipe end thread machining equipment which comprises a bottom plate, electric cylinders are bolted to the front and the rear of the left side of the top of the bottom plate, a mounting plate is bolted to the tops of the electric cylinders, a connecting frame is rotationally connected to the inner side of the mounting plate through a bearing, and a disc is bolted to the right side of the connecting frame. The inner side of the disc is rotationally connected with a lead screw through a bearing, the surface of the lead screw is in threaded connection with a sleeve, sliding grooves are annularly formed in the inner side of the disc, and the inner sides of the sliding grooves are slidably connected with extension pipes. By means of the electric cylinder, the mounting plate, the connecting frame, the disc, the lead screw, the sleeve, the sliding groove, the extension pipe and the like, the driving motor drives the whole fixing assembly to rotate through the mounting plate, a steel pipe to be machined rotates to make contact with a grooving tool bit, thread machining grooving operation is conducted, the effect of conveniently supporting and fixing steel pipes with different pipe diameters can be achieved, and machining efficiency is improved. The purpose of improving the adaptability of the inner supporting device is achieved.

Description

Technical Field

[0001] The utility model relates to the field of thread processing equipment, in particular to a precision steel pipe end thread processing equipment. Background Art

[0002] Steel pipes have hollow cross-sections, and their length is much greater than the diameter or circumference of the steel. According to the cross-sectional shape, they are divided into round, square, rectangular and special-shaped steel pipes; according to the material, they are divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the purpose, they are divided into steel pipes for pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, they are divided into seamless steel pipes and welded steel pipes.

[0003] In order to ensure smooth thread processing of the oil casing, an internal support device is used to support and fix the steel pipe during the processing to ensure smooth processing of the steel pipe. However, the existing internal support device is not convenient to adapt to steel pipes of different diameters. At the same time, the existing internal support device is very troublesome to dismantle, which affects the practicality of the internal support device. Utility Model Content

[0004] The utility model aims to provide a precision steel pipe end thread processing device which can effectively solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a precision steel pipe end thread processing equipment, comprising a base plate, the front and rear of the left side of the top of the base plate are bolted with an electric cylinder, the top of the electric cylinder is bolted with a mounting plate, the inner side of the mounting plate is rotatably connected to a connecting frame through a bearing, the right side of the connecting frame is bolted with a disc, the inner side of the disc is rotatably connected to a screw rod through a bearing, the surface of the screw rod is threadedly connected to a sleeve, the inner side of the disc is arranged in an annular manner, the inner side of the slide groove is slidably connected to an extension tube, the surface of the extension tube is slidably sleeved with a support rod, the inner side of the support rod is hinged with a first connecting rod, and the other end of the first connecting rod is hinged with the outer side of the sleeve, the front and rear of the right side of the top of the base plate are bolted with a sliding rod, the surface of the sliding rod is slidably connected to the mounting frame, the inner side of the mounting frame is rotatably connected to a connecting plate through a bearing, and the top and bottom sides of the connecting plate are bolted with a slotting cutter head.

[0006] A cross plate is bolted to the right side of the slide bar, a hydraulic cylinder is bolted to the top of the cross plate, and the telescopic end of the hydraulic cylinder is bolted to the right side of the mounting frame, so that the cross plate fixes the hydraulic cylinder on the right side of the slide bar, and the driving thrust of the hydraulic cylinder drives the mounting frame to move horizontally on the surface of the slide bar.

[0007] Preferably, the surface of the screw rod is threadedly connected with a threaded sleeve, and the outer side of the threaded sleeve is hinged with a second connecting rod in a circular arrangement, and the other end of the second connecting rod is hinged to the inner side of the support rod, so that the threaded sleeve moves on the surface of the screw rod and pushes the outer support rod to expand or contract through the second connecting rod.

[0008] Preferably, a servo motor is bolted to the left side of the disc, and the left side of the lead screw is bolted to the output end of the servo motor, and the servo motor is used as a driving source to drive the lead screw to rotate inside the disc.

[0009] Preferably, a rubber pad is bolted to the outer side of the support rod, and a steel pipe to be processed is slidably sleeved on the outer side of the support rod. The rubber pad is used as an auxiliary component. Due to the characteristics of the rubber pad itself, the steel pipe to be processed can be effectively fixed on the surface of the support rod to prevent it from slipping.

[0010] Preferably, a drive motor is bolted to the left side of the mounting plate, and the left side of the connecting frame passes through the mounting plate and is bolted to the output end of the drive motor. The drive motor is used as a driving source to drive the mounting plate to rotate, thereby rotating and slotting the steel pipe to be processed.

[0011] Preferably, a twist handle is bolted through the mounting frame on the front side of the connecting plate, so that the user can drive the connecting plate to rotate by the twist handle.

[0012] Compared with the related existing technologies in this field, this application has its own advantages and beneficial technical effects:

[0013] This technical solution uses components such as an electric cylinder, a mounting plate, a connecting frame, a disc, a screw rod, a sleeve, a slide groove, an extension tube, etc. The driving motor drives the overall fixed component to rotate through the mounting plate, so that the steel pipe to be processed rotates and contacts the slotting cutter head to perform thread processing and slotting operations. It can facilitate the support and fixation of steel pipes of different diameters, thereby achieving the purpose of improving the adaptability of the internal support device.

[0014] This technical solution uses components such as a slide rod, a mounting frame, a connecting plate, a slotting cutter head, and a twist handle. During the use of the device, if the slotting cutter head is severely worn, resulting in low slotting efficiency and low slotting accuracy, etc., it is only necessary to drive the connecting plate to rotate through the twist handle to rotate the slotting cutter head at the other end from the bottom to vertically upward, thereby completing the purpose of quickly replacing the cutter head, thereby improving the efficiency and continuity of steel pipe thread processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the overall structure of the utility model.

[0016] Figure 2 It is a front sectional view of the overall structure of the utility model.

[0017] Figure 3It is a front contracted cross-sectional view of the overall structure of the utility model.

[0018] Figure 4 For the utility model Figure 3 A magnified view of the structure in the middle.

[0019] Figure 5 For the utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0020] Figure 6 It is an enlarged view of the local structure of the right side of the disk of the utility model.

[0021] In the figure: 1. base plate; 2. electric cylinder; 3. mounting plate; 4. connecting frame; 5. disc; 6. screw rod; 7. sleeve; 8. slide groove; 9. extension tube; 10. support rod; 11. first connecting rod; 12. slide rod; 13. mounting frame; 14. connecting plate; 15. slotting cutter head; 16. cross plate; 17. hydraulic cylinder; 18. threaded sleeve; 19. second connecting rod; 20. servo motor; 21. rubber pad; 22. steel pipe to be processed; 23. drive motor; 24. twist handle. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The utility model provides Figures 1 to 6 The shown device comprises a precision steel pipe end thread processing device, comprising a base plate 1, an electric cylinder 2 is bolted to the front and rear of the left side of the top of the base plate 1, a mounting plate 3 is bolted to the top of the electric cylinder 2, a connecting frame 4 is rotatably connected to the inner side of the mounting plate 3 through a bearing, a disc 5 is bolted to the right side of the connecting frame 4, a lead screw 6 is rotatably connected to the inner side of the disc 5 through a bearing, a sleeve 7 is threadedly connected to the surface of the lead screw 6, a slide groove 8 is arranged in a ring on the inner side of the disc 5, an extension tube 9 is slidably connected to the inner side of the slide groove 8, a support rod 10 is slidably sleeved on the surface of the extension tube 9, a first connecting rod 11 is hinged to the inner side of the support rod 10, and the other end of the first connecting rod 11 is hinged to the outer side of the sleeve 7, a sliding rod 12 is bolted to the front and rear of the right side of the top of the base plate 1, a mounting frame 13 is slidably connected to the surface of the sliding rod 12, a connecting plate 14 is rotatably connected to the inner side of the mounting frame 13 through a bearing, and a slotting cutter head 15 is bolted to both the top and bottom sides of the connecting plate 14.

[0024] A cross plate 16 is bolted to the right side of the slide bar 12, a hydraulic cylinder 17 is bolted to the top of the cross plate 16, and the telescopic end of the hydraulic cylinder 17 is bolted to the right side of the mounting frame 13, so that the cross plate 16 fixes the hydraulic cylinder 17 on the right side of the slide bar 12, and the driving thrust of the hydraulic cylinder 17 drives the mounting frame 13 to move horizontally on the surface of the slide bar 12.

[0025] The surface of the screw rod 6 is threadedly connected with a threaded sleeve 18, and the outer side of the threaded sleeve 18 is hinged with a second connecting rod 19 in a circular arrangement, and the other end of the second connecting rod 19 is hinged to the inner side of the support rod 10, so that when the threaded sleeve 18 moves on the surface of the screw rod 6, the second connecting rod 19 pushes the outer support rod 10 to expand or contract.

[0026] The left side of the disc 5 is bolted with a servo motor 20 , and the left side of the lead screw 6 is bolted with the output end of the servo motor 20 . The servo motor 20 is used as a driving source to drive the lead screw 6 to rotate inside the disc 5 .

[0027] A rubber pad 21 is bolted to the outside of the support rod 10, and a steel pipe 22 to be processed is slidably sleeved on the outside of the support rod 10. The rubber pad 21 is used as an auxiliary component. Due to the characteristics of the rubber pad 21 itself, the steel pipe 22 to be processed can be effectively fixed on the surface of the support rod 10 to prevent it from slipping.

[0028] A drive motor 23 is bolted to the left side of the mounting plate 3, and the left side of the connecting frame 4 passes through the mounting plate 3 and is bolted to the output end of the drive motor 23. The drive motor 23 is used as a driving source to drive the mounting plate 3 to rotate, thereby rotating the steel pipe 22 to be processed to form a groove.

[0029] A twist handle 24 is bolted through the mounting frame 13 on the front side of the connecting plate 14 , so that the user can drive the connecting plate 14 to rotate through the twist handle 24 .

[0030] Refer to the instruction manual Figure 1-6 Working principle: through the electric cylinder 2, the mounting plate 3, the connecting frame 4, the disc 5, the screw rod 6, the sleeve 7, the slide 8, the extension tube 9 and other components, during the use of the device, first determine the inner diameter of the steel pipe 22 to be processed, then sleeve the inside of the steel pipe 22 to be processed with the outside of the connecting rod, and then turn on the servo motor 20 to drive the screw rod 6 to rotate. When the screw rod 6 rotates, the threaded sleeve 18 and the sleeve 7 on its surface will move horizontally on the surface of the screw rod 6, and the threaded sleeve 18 and the sleeve 7 will respectively drive the first connecting rod 11 and the second connecting rod 12 to move horizontally. The connecting end of the second connecting rod 19 moves horizontally, so that the other end thereof pushes or pulls the support rod 10 to expand or contract outward, so that the support rod 10 expands outward until it fits against the inner wall of the steel pipe to be processed, thereby supporting and fixing the steel pipe. Subsequently, the drive motor 23 is turned on, so that the drive motor 23 drives the overall fixing assembly to rotate through the mounting plate 3, so that the steel pipe 22 to be processed rotates and contacts the slotting cutter head 15, and thread processing and slotting operations are performed, which can facilitate the support and fixation of steel pipes of different diameters, thereby achieving the purpose of improving the adaptability of the internal support device.

[0031] Through the components such as the slide rod 12, the mounting frame 13, the connecting plate 14, the slotting cutter head 15, the twist handle 24, etc., during the use of the device, if the slotting cutter head 15 is severely worn, resulting in low slotting efficiency, low slotting accuracy and other problems, it is only necessary to drive the connecting plate 14 to rotate through the twist handle 24, so that the slotting cutter head 15 at the other end is rotated from the bottom to vertically upward, so as to achieve the purpose of quickly replacing the cutter head, thereby improving the efficiency and continuity of steel pipe thread processing.

Claims

1. A precision steel pipe end thread processing device, comprising a base plate (1), characterized in that: The front and rear sides of the left side of the top of the bottom plate (1) are both bolted with electric cylinders (2); the top of the electric cylinder (2) is bolted with a mounting plate (3); the inner side of the mounting plate (3) is rotatably connected to a connecting frame (4) via a bearing; the right side of the connecting frame (4) is bolted with a disc (5); the inner side of the disc (5) is rotatably connected to a lead screw (6) via a bearing; the surface of the lead screw (6) is threadedly connected to a sleeve (7); the inner side of the disc (5) is provided with a slide groove (8) arranged in an annular pattern; the inner side of the slide groove (8) is slidably connected to an extension tube (9); the surface of the extension tube (9) is slidably sleeved with a support rod (10); the support rod (10) The inner side of each of the first connecting rods (11) is hingedly connected to a first connecting rod (11), and the other end of the first connecting rod (11) is hingedly connected to the outer side of the sleeve (7); the front and rear sides of the top right side of the bottom plate (1) are bolted to sliding rods (12); the surface of the sliding rod (12) is slidably connected to a mounting frame (13); the inner side of the mounting frame (13) is rotatably connected to a connecting plate (14) via a bearing; the top and bottom sides of the connecting plate (14) are bolted to slotting cutter heads (15); the right side of the sliding rod (12) is bolted to a transverse plate (16); the top of the transverse plate (16) is bolted to a hydraulic cylinder (17), and the telescopic end of the hydraulic cylinder (17) is bolted to the right side of the mounting frame (13).

2. The precision steel pipe end thread processing equipment according to claim 1 is characterized in that: The surface of the screw rod (6) is threadedly connected to a threaded sleeve (18), the outer side of the threaded sleeve (18) is hingedly connected to a second connecting rod (19) in a circular arrangement, and the other end of the second connecting rod (19) is hingedly connected to the inner side of the support rod (10).

3. The precision steel pipe end thread processing equipment according to claim 1 is characterized in that: The left side of the disc (5) is bolted to a servo motor (20), and the left side of the lead screw (6) is bolted to an output end of the servo motor (20).

4. The precision steel pipe end thread processing equipment according to claim 1 is characterized in that: A rubber pad (21) is bolted to the outer side of the support rod (10), and a steel pipe (22) to be processed is slidably sleeved to the outer side of the support rod (10).

5. The precision steel pipe end thread processing equipment according to claim 1 is characterized in that: The left side of the mounting plate (3) is bolted with a driving motor (23), and the left side of the connecting frame (4) passes through the mounting plate (3) and is bolted to the output end of the driving motor (23).

6. The precision steel pipe end thread processing equipment according to claim 1, characterized in that: The front side of the connecting plate (14) passes through the mounting frame (13) and is bolted with a twist handle (24).

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