Tool die for flaring of longitudinal welded pipe

Abstract

The utility model relates to a tooling mould for flaring a longitudinal welded pipe, which comprises a tooling mould body and a machine table, a rack is fixedly mounted at the top of the machine table, and an automatic polishing and cleaning mechanism is arranged on the inner side of the rack; the automatic polishing and cleaning mechanism comprises a hydraulic cylinder fixedly mounted at the top of the rack, an output shaft of the hydraulic cylinder is fixedly provided with a mounting circular truncated cone, the bottom end of a rotating shaft is fixedly connected with a disc, the interior of the mounting circular truncated cone is fixedly connected with a motor, and an output shaft of the motor is provided with a first gear; a second gear is mounted on the outer surface of the rotating shaft, electric push rods are fixedly mounted on the left side and the right side of the bottom of the disc, and polyurethane grinding heads are mounted on output shafts of the electric push rods. According to the tool mold for flaring of the longitudinal welded pipe, the automatic polishing and cleaning mechanism is arranged, so that the polyurethane polishing head continuously rotates and rubs so as to remove scrap iron and scratches on the longitudinal welded pipe on the outer surface of the tool mold body, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of straight seam welded pipe expansion, in particular to a tooling die for straight seam welded pipe expansion. Background Art

[0002] The main purpose of expanding the straight seam welded pipe is to improve the dimensional accuracy of the steel pipe and improve the distribution of stress inside the steel pipe. During the expansion process, the entire length of the steel pipe will be expanded, which can make the size of the steel pipe more accurate. At the same time, the internal stress distribution of the steel pipe can be adjusted to make it more uniform, thereby improving the overall performance and service life of the steel pipe. In addition, expansion can also help detect and repair the internal and external welds of the welded pipe. During the expansion process, the internal and external welds of the welded pipe can be inspected to find and repair possible defects to ensure the quality and safety of the welded pipe. It should be noted that the expansion operation needs to be carried out according to specific equipment and material conditions. Excessive expansion may cause the strength of the welded pipe to decrease, so a suitable balance point needs to be found in actual operation.

[0003] When expanding a straight seam welded pipe, a tooling die with a conical appearance is generally used to facilitate the staff to press and position the straight seam welded pipe. After the tooling die has been used for a period of time, iron filings and scratches of the straight seam welded pipe are easily left on its outer surface, which needs to be cleaned and polished. Although the existing tooling die can facilitate pressing and positioning, it is not convenient to clean the outer surface of the tooling die and polish scratches, and its practicality is poor. Therefore, a tooling die for expanding the straight seam welded pipe is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a tooling die for expanding a straight seam welded pipe, which solves the problem that the existing tooling die can be convenient for tightening and positioning but is inconvenient for cleaning the outer surface of the tooling die and polishing scratches, resulting in poor practicality.

[0005] To achieve the above object, the utility model provides the following technical solutions: a tooling die for expanding a straight seam welded pipe, comprising a tooling die body and a machine platform, a frame is fixedly mounted on the top of the machine platform, and an automatic grinding and cleaning mechanism is arranged on the inner side of the frame;

[0006] The automatic grinding and cleaning mechanism includes a hydraulic cylinder fixedly mounted on the top of a frame, a mounting table fixedly mounted on the output shaft of the hydraulic cylinder, a rotating shaft rotatably mounted on the inner top wall of the mounting table, a disc fixedly connected to the bottom end of the rotating shaft, a motor fixedly connected to the inside of the mounting table, a first gear mounted on the output shaft of the motor, a second gear mounted on the outer surface of the rotating shaft, electric push rods fixedly mounted on the left and right sides of the bottom of the disc, and a polyurethane grinding head mounted on the output shaft of the electric push rods.

[0007] Furthermore, a storage box for collecting iron filings and abrasives is arranged inside the machine, and pulleys are rotatably connected around the bottom of the storage box.

[0008] Furthermore, the left and right sides of the inner wall of the machine are fixedly connected with limit guide rails, the inner bottom wall of the machine is provided with a slide groove, the storage box and the pulley are slidably connected to the limit guide rails and the slide groove respectively, and the left and right sides of the top of the machine are provided with discharge ports.

[0009] Furthermore, a groove is provided in the middle of the bottom end of the disc, and a spring is fixedly connected to the inner side of the groove.

[0010] Furthermore, a touch pressure sensor is fixedly connected to the bottom end of the spring, and a touch pressure ejector rod is fixedly connected to the top end of the tooling mold body.

[0011] Furthermore, the outer diameter of the mounting truncated table is consistent with that of the disc, and the first gear is meshed with the second gear for transmission.

[0012] Furthermore, the bottom of the tooling mold body is fixedly connected to the middle of the top of the machine platform, and foot pads are arranged around the bottom of the machine platform.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The tooling die for expanding the straight seam welded pipe is provided with an automatic grinding and cleaning mechanism. When in use, the hydraulic cylinder can drive the disc to rise and fall. In addition, the electric push rod can drive the polyurethane grinding head to fit the outer surface of the tooling die body, and the motor can drive the first gear and the second gear to mesh, thereby finally driving the disc to rotate, and then the polyurethane grinding head continuously rotates and rubs to remove the iron filings and scratches of the straight seam welded pipe on the outer surface of the tooling die body, which has good practicality.

[0015] 2. The tooling die for expanding the straight seam welded pipe can facilitate the staff to collect the iron filings of the straight seam welded pipe and the waste abrasives of the polyurethane grinding head by setting a storage box and a pulley, so as to clean them in a unified and centralized manner. The limiting guide rail and the slide groove can limit the position of the storage box and the pulley to avoid deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the internal structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 It is a structural stereogram of the machine of the utility model.

[0019] In the figure: 1 tooling mold body, 2 machine table, 3 frame, 4 hydraulic cylinder, 5 mounting round table, 6 rotating shaft, 7 disc, 8 motor, 9 first gear, 10 second gear, 11 electric push rod, 12 polyurethane grinding head, 13 storage box, 14 pulley, 15 limit guide rail, 16 slide groove, 17 pouring port, 18 groove, 19 spring, 20 touch pressure sensor, 21 touch pressure ejector. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 In this embodiment, a tooling die for expanding a straight seam welded pipe includes a tooling die body 1 and a machine platform 2. A frame 3 is fixedly installed on the top of the machine platform 2, and an automatic grinding and cleaning mechanism is arranged on the inner side of the frame 3.

[0022] The automatic grinding and cleaning mechanism includes a hydraulic cylinder 4 fixedly installed on the top of the frame 3, the output shaft of the hydraulic cylinder 4 is fixedly installed with a mounting table 5, the inner top wall of the mounting table 5 is rotatably installed with a rotating shaft 6, the bottom end of the rotating shaft 6 is fixedly connected with a disc 7, the inside of the mounting table 5 is fixedly connected with a motor 8, the output shaft of the motor 8 is installed with a first gear 9, the outer surface of the rotating shaft 6 is installed with a second gear 10, and the left and right sides of the bottom of the disc 7 are fixedly installed with electric push rods 11, and the output shaft of the electric push rod 11 is installed with a polyurethane grinding head 12. When in use, the hydraulic cylinder 4 can drive the disc 7 to rise and fall. In addition, the electric push rod 11 can drive the polyurethane grinding head 12 to fit on the outer surface of the tooling mold body 1, and the motor 8 can be driven by the first gear 9 and the second gear 10 meshing, thereby finally driving the disc 7 to rotate, and then continuously rotating and rubbing to remove the iron filings and scratches of the straight seam welded pipe on the outer surface of the tooling mold body 1, which has good practicality.

[0023] Among them, a storage box 13 for collecting iron filings and abrasives is arranged inside the machine 2, and pulleys 14 are rotatably connected around the bottom of the storage box 13, and limiting guide rails 15 are fixedly connected to the left and right sides of the inner wall of the machine 2. A slide groove 16 is provided on the inner bottom wall of the machine 2, and the storage box 13 and the pulley 14 are slidably connected to the limiting guide rails 15 and the slide groove 16 respectively. A discharge port 17 is provided on the left and right sides of the top of the machine 2. By setting the storage box 13 and the pulley 14, it is convenient for the staff to collect the iron filings of the straight seam welded pipe and the waste abrasives of the polyurethane grinding head 12, so as to clean them up in a unified and centralized manner, and the limiting guide rails 15 and the slide groove 16 can limit the positions of the storage box 13 and the pulley 14 to avoid displacement.

[0024] When the tooling mold body 1 is cleaned, the staff only needs to sweep the iron filings of the straight seam welded pipe and the waste abrasives of the polyurethane grinding head 12 remaining on the top of the machine table 2 into the discharge port 17, and they will eventually fall into the storage box 13 for temporary storage.

[0025] It should be noted that a groove 18 is opened in the middle of the bottom end of the disc 7, a spring 19 is fixedly connected to the inner side of the groove 18, a touch pressure sensor 20 is fixedly connected to the bottom end of the spring 19, and a touch pressure push rod 21 is fixedly connected to the top of the tooling mold body 1. By arranging the spring 19, the touch pressure sensor 20 and the touch pressure push rod 21, the touch pressure sensing and limiting effects are achieved, thereby preventing the disc 7 from hitting the tooling mold body 1.

[0026] It should be understood that the outer diameters of the mounting truncated table 5 and the disc 7 are consistent, the first gear 9 and the second gear 10 are meshed and transmitted, the bottom of the tooling mold body 1 is fixedly connected to the middle of the top of the machine table 2, and foot pads are arranged around the bottom of the machine table 2. By arranging the foot pads, the machine table 2 can be prevented from directly contacting the ground;

[0027] The working principle of the above embodiment is:

[0028] For the tooling die for expanding the straight seam welded pipe, when it is necessary to clean the outer surface of the tooling die body 1, the staff first needs to start the hydraulic cylinder 4 through the control device to drive the installation table 5 to descend, wherein, when the installation table 5 is raised or lowered to a certain position, at the same time, the top of the touch pressure push rod 21 is against the touch pressure sensor 20 and the spring 19 is retracted, at this time, the touch pressure sensor 20 can transmit the electrical signal to the control device, and control the hydraulic cylinder 4 through the control device, so that the installation table 5 does not continue to descend, and then start the electric push rod 11, which can drive the polyurethane grinding head 12 to fit the outer surface of the tooling die body 1, and then start the motor 8, which can be driven by the meshing transmission of the first gear 9 and the second gear 10, thereby finally driving the disc 7 to rotate, and then the polyurethane grinding head 12 continuously rotates and rubs to remove the iron filings and scratches of the straight seam welded pipe on the outer surface of the tooling die body 1.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tooling die for expanding a straight seam welded pipe, comprising a tooling die body (1) and a machine table (2), characterized in that: A frame (3) is fixedly mounted on the top of the machine platform (2), and an automatic grinding and cleaning mechanism is arranged on the inner side of the frame (3); The automatic grinding and cleaning mechanism comprises a hydraulic cylinder (4) fixedly mounted on the top of a frame (3); a mounting table (5) is fixedly mounted on the output shaft of the hydraulic cylinder (4); a rotating shaft (6) is rotatably mounted on the inner top wall of the mounting table (5); a disc (7) is fixedly connected to the bottom end of the rotating shaft (6); a motor (8) is fixedly connected to the inside of the mounting table (5); a first gear (9) is mounted on the output shaft of the motor (8); a second gear (10) is mounted on the outer surface of the rotating shaft (6); electric push rods (11) are fixedly mounted on the left and right sides of the bottom of the disc (7); and a polyurethane grinding head (12) is mounted on the output shaft of the electric push rod (11).

2. The tooling die for expanding the straight seam welded pipe according to claim 1, characterized in that: A storage box (13) for collecting iron filings and abrasives is arranged inside the machine platform (2), and pulleys (14) are rotatably connected around the bottom of the storage box (13).

3. The tooling die for expanding the straight seam welded pipe according to claim 2, characterized in that: The left and right sides of the inner wall of the machine platform (2) are fixedly connected to the limit guide rails (15); the inner bottom wall of the machine platform (2) is provided with a slide groove (16); the storage box (13) and the pulley (14) are slidably connected to the limit guide rails (15) and the slide groove (16) respectively; and the left and right sides of the top of the machine platform (2) are provided with a discharge port (17).

4. The tooling die for expanding the straight seam welded pipe according to claim 1, characterized in that: A groove (18) is provided in the middle of the bottom end of the disc (7), and a spring (19) is fixedly connected to the inner side of the groove (18).

5. The tooling die for expanding the straight seam welded pipe according to claim 4, characterized in that: The bottom end of the spring (19) is fixedly connected to a touch pressure sensor (20), and the top end of the tooling mold body (1) is fixedly connected to a touch pressure ejector rod (21).

6. The tooling die for expanding the straight seam welded pipe according to claim 1, characterized in that: The outer diameters of the mounting truncated table (5) and the disc (7) are consistent, and the first gear (9) and the second gear (10) are meshed for transmission.

7. The tooling die for expanding the straight seam welded pipe according to claim 1, characterized in that: The bottom of the tooling mold body (1) is fixedly connected to the middle of the top of the machine platform (2), and foot pads are arranged around the bottom of the machine platform (2).

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