A straight titanium tube welding auxiliary device

Abstract

The present invention discloses a straight titanium tube welding auxiliary device, including a rotating mechanism and a protective mechanism. The rotating mechanism includes a chassis, a three-jaw chuck and a rotating driver. The chassis is provided with a through hole, the three-jaw chuck is provided at the through hole, the three-jaw chuck is used to clamp the titanium tube, the rotating driver is provided in the chassis, and is used to drive the three-jaw chuck to rotate. The protective mechanism includes a base, a lifting screw and a protective cover. The base is provided at the side of the through hole, the lifting screw is threadedly connected to the upper end of the base, the protective cover is a cylindrical structure, the protective cover is connected to the lifting screw, the protective cover is provided with an inflation port, the inner cavity of the protective cover is provided with a sponge, the sponge is provided above the inflation port, and the upper end opening of the protective cover is symmetrically provided with two concave arcs, and the lowest point connection line of the two concave arcs is parallel to the axis of the through hole. According to the straight titanium tube welding auxiliary device of the present invention, the protective cover structure is improved, and an automatic rotation method is adopted to achieve one-time completion of a welding, improve the welding quality, and make the operation more humane.

Description

Technical Field

[0001] The invention relates to the technical field of ships, in particular to a straight titanium tube welding auxiliary device. Background Art

[0002] The ship piping system plays an irreplaceable role on the ship and is called the "blood vessels" of the ship's operation. Therefore, the production of marine pipes is of vital importance. As a process in ship construction, it is very necessary to achieve a "good start" with guaranteed quality and quantity. Pipe welding is a key process in the production of marine pipes. The welding quality and welding efficiency greatly affect the rework rate and production cycle of marine pipes. Improving the welding quality and efficiency of marine pipes is the eternal focus of work in the production of ship piping systems.

[0003] In the process of making marine pipes, there are some pipe systems made of special materials, such as titanium pipes. Due to the special nature of the materials, titanium pipes need special protection when they are welded. Under high temperature conditions during welding, the welds will be oxidized when directly exposed to the air, affecting the welding quality and failing to meet quality requirements. Therefore, the completed welds must be protected immediately during welding to avoid oxidation. Therefore, there is a straight titanium pipe welding protective cover to protect the welds that are still in a high temperature state during the welding process.

[0004] In the existing straight titanium tube welding protective cover, when welding titanium tubes, the construction worker moves the protective cover with the welding gun to protect the weld. In order to fit the outer surface of the titanium tube, different diameters require protective covers of different sizes, and the protective gas does not have a strong protective effect on the weld. When the protective gas filling pipe moves, it is easy to hit the welding gun, the welding titanium tube, etc., affecting the welding efficiency. In addition, in the above welding method, a weld needs to be started and closed four times to complete, the welding efficiency is low, and quality problems are prone to occur at the starting and closing of the arc. Summary of the invention

[0005] The purpose of the present invention is to provide a straight titanium tube welding auxiliary device, improve the protective cover structure, adopt an automatic rotation method, realize one-time completion of welding, improve welding quality, and make the operation more humane.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a straight titanium tube welding auxiliary device, which includes a rotating mechanism and a protecting mechanism.

[0007] The rotating mechanism includes a chassis, a three-jaw chuck and a rotating driver; the chassis is provided with a through hole, the three-jaw chuck is arranged at the through hole, and the three-jaw chuck is used to clamp the titanium tube; the rotating driver is arranged in the chassis, and the rotating driver is used to drive the disk body of the three-jaw chuck to rotate; the protective mechanism includes a base, a lifting screw and a protective cover, the base is arranged on the side of the through hole, and the lifting screw is threadedly connected to the upper end of the base; the protective cover is a cylindrical structure, and the bottom end of the protective cover is connected to the upper end of the lifting screw; the lower end circumferential surface of the protective cover is provided with an inflation port, and the lower end inner cavity of the protective cover is provided with a sponge, and the sponge is arranged above the inflation port; two concave arcs are symmetrically arranged at the upper end opening of the protective cover; the line connecting the lowest points of the two concave arcs is parallel to the axis of the through hole; the inflation port is used to fill in inert gas.

[0008] According to some embodiments of the present invention, the upper end of the protective cover is covered with two sealing plates, the outer edges of the sealing plates abut against the concave arc, and an opening is provided in the middle of the two sealing plates.

[0009] According to some embodiments of the present invention, the sealing plate is covered with tin foil.

[0010] According to some embodiments of the present invention, the protective cover also includes two iron wires, which are semicircular in shape, the bottom ends of the iron wires are connected to the bottom ends of the concave arcs, the iron wires are vertically arranged, and the port diameter of the iron wires is smaller than the diameter of the opening.

[0011] According to some embodiments of the present invention, the protective cover is a copper tube, and the diameter of the protective cover ranges from 105 mm to 110 mm.

[0012] According to some embodiments of the present invention, the distance from the axis of the inflation port to the upper plane of the protective cover ranges from 17 mm to 23 mm, and the length of the protective cover ranges from 280 mm to 320 mm.

[0013] According to some embodiments of the present invention, a support rod is disposed in the protective cover, the support rod is used to support the sponge, and both ends of the support rod are connected to the inner wall of the protective cover.

[0014] According to some embodiments of the present invention, a pressure sensor and a display light are provided on the protective cover; the pressure sensor is provided on the concave arc and on a side of the protective cover close to the three-jaw chuck; the display light is electrically connected to the pressure sensor.

[0015] According to some embodiments of the present invention, the rotating mechanism also includes a mounting plate, a transmission gear and a rotating gear, and a three-jaw chuck and a transmission gear are respectively installed on two opposite sides of the mounting plate, and the three-jaw chuck is coaxially arranged with the transmission gear; the transmission gear is meshed with the rotating gear; and the rotating gear is arranged on the rotating shaft of the rotating driver.

[0016] According to some embodiments of the present invention, a roller with brake is provided at the lower end of the base.

[0017] The embodiment of the present invention provides a straight titanium tube welding auxiliary device, which has the following beneficial effects compared with the prior art:

[0018] In the straight titanium tube welding auxiliary device of the embodiment of the present invention, one end of the titanium tube is tightened by a three-claw chuck, and the other end of the titanium tube is placed on the concave arc of the protective cover, and the titanium tube is rotated by a rotary driver to complete one welding at a time, making the operation more humane; the protective cover is a cylindrical structure, and is provided with an inflation hole and a concave arc, which is conducive to the inert gas to better protect the weld and improve the welding quality. Therefore, the straight titanium tube welding auxiliary device of the embodiment of the present invention improves the protective cover structure, adopts an automatic rotation method, completes one welding at a time, improves the welding quality, and makes the operation more humane. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 2 is a schematic structural diagram of a straight titanium tube welding auxiliary device according to an embodiment of the present invention;

[0020] Figure 2 2 is a schematic structural diagram of a protection mechanism of a straight titanium tube welding auxiliary device according to an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of an exploded view of a protection mechanism of a straight titanium tube welding auxiliary device according to an embodiment of the present invention.

[0022] Reference numerals:

[0023] Rotating mechanism 1; chassis 11; three-jaw chuck 12; rotating driver 13; mounting plate 14; rotating gear 15; transmission gear 16;

[0024] Protection mechanism 2; base 21; roller with brake 211; lifting screw 22; protection cover 23; concave arc 231; sponge 232; inflation port 233; support rod 234; sealing plate 24; opening 241; iron wire 25;

[0025] Titanium tube3. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0030] Reference below Figures 1 to 3 A straight titanium tube welding auxiliary device according to an embodiment of the present invention is described.

[0031] like Figure 1 As shown, according to an embodiment of the straight titanium tube welding auxiliary device of the present invention, the present invention provides a straight titanium tube welding auxiliary device, including a rotating mechanism 1 and a protective mechanism 2.

[0032] The rotating mechanism 1 includes a chassis 11, a three-jaw chuck 12 and a rotating driver 13. A through hole is provided on one side of the chassis 11, and the through hole is provided above the chassis 11. The three-jaw chuck 12 is provided at the through hole, and the clamping jaws of the three-jaw chuck 12 are exposed on the surface of the chassis 11 through the through hole to clamp the titanium tube 3. The rotating driver 13 is provided in the chassis 11, and the rotating driver 13 is used to drive the disk body of the three-jaw chuck 12 to rotate, and the three-jaw chuck 12 is driven to rotate by the rotating driver 13 to realize the rotation of the titanium tube 3.

[0033] like Figure 2 and 3As shown, the protection mechanism 2 includes a base 21, a lifting screw 22 and a protection cover 23. The base 21 is arranged on the side of the through hole, that is, the base 21 is arranged in front of the through hole. The lifting screw 22 is threadedly connected to the upper end of the base 21. By rotating the lifting screw 22, the bottom end of the protection cover 23 is connected to the upper end of the lifting screw 22, and the height of the protection cover 23 can be adjusted so that the titanium tube 3 clamped by the three-jaw chuck 12 is in contact with the upper end of the protection cover 23. It can be understood that a rotary drive such as a rotary servo motor, a rotary stepping motor or a rotary cylinder can be arranged inside the base 21, and the lifting screw 22 is rotated by the rotary drive to realize the lifting and lowering control of the protection cover 23.

[0034] The protective cover 23 is a cylindrical structure. The circumferential surface of the lower end of the protective cover 23 is provided with an inflation port 233. The inner cavity of the lower end of the protective cover 23 is provided with a sponge 232. The sponge 232 is arranged above the inflation port 233. The inflation port 233 is used to fill in an inert gas. The inert gas enters the protective cover 23 through the inflation port 233, and after being dispersed by the sponge 232, it slowly and evenly flows to the upper end of the protective cover 23. The inert gas covers the welding part of the titanium tube 3.

[0035] Two concave arcs 231 are symmetrically arranged at the upper opening 241 of the protective cover 23, and the line connecting the lowest points of the two concave arcs 231 is parallel to the axis of the through hole. The upper opening 241 of the protective cover 23 is formed to be high in the middle and low at both ends. The two titanium tubes 3 to be welded together, the bottom of one titanium tube 3 contacts one concave arc 231, and the bottom of the other titanium tube 3 contacts the other concave arc 231. The welding point of the two titanium tubes 3 is set in the middle of the two concave arcs 231, so that the inert gas coming out of the protective cover 23 covers the weld.

[0036] The working process of the present invention is as follows: one end of one of the titanium tubes 3 is clamped by a clamping jaw chuck, the base 21 is moved, and the height of the lifting screw 22 is adjusted so that the other end of the above-mentioned titanium tube 3 contacts the concave arc 231, and the end surface plane of the titanium tube 3 is set in the middle of the two concave arcs 231, and the other titanium tube 3 is placed on the other concave arc 231. The contact surfaces of the two titanium tubes 3 are in the middle of the two grooves, and the contact surfaces of the two titanium tubes 3 are welded by a welding gun, and the three-jaw chuck 12 is rotated by the rotating driver 13 to rotate the titanium tube 3, so as to complete the welding of the two titanium tubes 3.

[0037] In the straight titanium tube welding auxiliary device of the embodiment of the present invention, one end of the titanium tube 3 is tightened by a three-claw chuck, and the other end of the titanium tube 3 is placed on the concave arc 231 of the protective cover 23, and the titanium tube 3 is rotated by the rotary driver 13 to complete one welding at a time, making the operation more humane; the protective cover 23 is a cylindrical structure, and is provided with an inflation hole and a concave arc 231, which is conducive to the inert gas to better protect the weld and improve the welding quality. Therefore, the straight titanium tube welding auxiliary device of the embodiment of the present invention improves the structure of the protective cover 23, adopts an automatic rotation method, realizes one welding at a time, improves the welding quality, and makes the operation more humane.

[0038] In some specific embodiments of the present invention, Figure 2 and 3 As shown, the upper end of the protective cover 23 is covered with two sealing plates 24, the outer edge shape of the sealing plates 24 is in contact with the concave arc 231, and an opening 241 is provided in the middle of the two sealing plates 24. The structure of the sealing plates 24 is high in the middle and low on both sides, covering the upper end opening 241 of the protective cover 23. The middle opening 241 of the sealing plates 24 is used to place the titanium tube 3, which is conducive to improving the sealing between the titanium tube 3 and the protective cover 23 and improving the protection effect of the inert gas. Furthermore, the sealing plates 24 are covered with tin foil, which is conducive to further improving the sealing.

[0039] In some specific embodiments of the present invention, Figure 2 and 3 As shown, the protective cover 23 also includes two iron wires 25, which are semicircular in shape. The bottom end of the iron wire 25 is connected to the bottom end of the concave arc 231. The iron wire 25 is vertically arranged, and the port diameter of the iron wire 25 is smaller than the diameter of the opening 241. The titanium tube 3 is placed in the iron wire 25. The titanium tube 3 is fixed by the iron wire 25, which is beneficial to further improve the stability of the titanium tube 3 during welding.

[0040] In some specific embodiments of the present invention, the protective cover 23 is a copper tube. According to the size requirements of the ship pipeline, the diameter of the protective cover 23 is set in the range of 105mm to 110mm, which is beneficial to improve the versatility of the protective cover 23 and reduce the probability of using protective covers 23 of different sizes during welding.

[0041] Furthermore, the length of the protective cover 23 ranges from 280 mm to 320 mm, and the distance from the axis of the inflation port 233 to the upper plane of the protective cover 23 ranges from 17 mm to 23 mm, which is beneficial to improving the uniformity of the inert gas at the upper end of the protective cover 23 and improving the welding quality.

[0042] In some specific embodiments of the present invention, a support rod 234 is provided in the protective cover 23, and the support rod 234 is used to support the sponge 232. Both ends of the support rod 234 are connected to the inner wall of the protective cover 23. The support rod 234 is added to facilitate the installation and replacement of the sponge 232. The sponge 232 of a suitable size can be selected according to needs, so that the diameter of the sponge 232 is greater than or equal to the inner diameter of the protective cover 23. After the inert gas enters the inner cavity of the protective cover 23 from the inflation port 233, it must pass through the sponge 232 at a uniform speed and then flow to the upper end port of the protective cover 23.

[0043] In some specific embodiments of the present invention, a pressure sensor and a display light are provided on the protective cover 23. The pressure sensor is provided on the concave arc 231 and on the side of the protective cover 23 close to the three-jaw chuck 12. The display light is electrically connected to the pressure sensor. The pressure sensor is used to confirm whether the titanium tube 3 is in contact with the protective cover 23, and the display light is used to prompt, so as to facilitate the adjustment of the height of the lifting screw 22, making the operation more user-friendly.

[0044] In some specific embodiments of the present invention, the rotating mechanism 1 further includes a mounting plate 14, a transmission gear 16 and a rotating gear 15. The three-jaw chuck 12 and the transmission gear 16 are respectively mounted on two opposite sides of the mounting plate 14. The three-jaw chuck 12 and the transmission gear 16 are coaxially arranged. The transmission gear 16 meshes with the rotating gear 15. The rotating gear 15 is arranged on the rotating shaft of the rotating driver 13. When the three-jaw chuck 12 clamps the titanium tube 3, the rotating gear 15 is driven to rotate by the rotation drive, and the rotating gear 15 drives the transmission gear 16 to rotate, so that the three-jaw chuck drives the titanium tube 3 to rotate, and the titanium tube 3 is automatically rotated.

[0045] In some specific embodiments of the present invention, a brake roller 211 is provided at the lower end of the base 21. According to the distance of the titanium tube 3 extending out of the three-jaw chuck, the position of the protective cover 23 is adjusted by pushing the brake roller 211 to rotate, which makes the operation more convenient.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A straight titanium tube welding auxiliary device, characterized in that: include: A rotating mechanism, the rotating mechanism comprising a chassis, a three-jaw chuck and a rotating driver; the chassis is provided with a through hole, the three-jaw chuck is arranged at the through hole, and the three-jaw chuck is used to clamp the titanium tube; the rotating driver is arranged in the chassis, and the rotating driver is used to drive the disk body of the three-jaw chuck to rotate; The protective mechanism comprises a base, a lifting screw and a protective cover, wherein the base is arranged on the side of the through hole, and the lifting screw is threadedly connected to the upper end of the base; the protective cover is a cylindrical structure, and the bottom end of the protective cover is connected to the upper end of the lifting screw; an inflation port is arranged on the circumferential surface of the lower end of the protective cover, and a sponge is arranged in the inner cavity of the lower end of the protective cover, and the sponge is arranged above the inflation port; two concave arcs are symmetrically arranged at the upper end opening of the protective cover; the line connecting the lowest points of the two concave arcs is parallel to the axis of the through hole; the upper end of the protective cover is covered with two sealing The outer edge of the sealing plate abuts against the concave arc, an opening is arranged in the middle of the two sealing plates, the structure of the sealing plate is high in the middle and low on both sides, and the inflation port is used to fill with inert gas; a support rod is arranged in the protective cover, the support rod is used to support the sponge, both ends of the support rod are connected to the inner wall of the protective cover, the diameter of the sponge is greater than or equal to the inner diameter of the protective cover, the protective cover also includes two iron wires, the iron wires are semicircular, the bottom end of the iron wires is connected to the bottom end of the concave arc, the iron wires are vertically arranged, and the port diameter of the iron wires is smaller than the diameter of the opening.

2. The straight titanium tube welding auxiliary device according to claim 1 is characterized in that: The sealing plate is covered with tin foil.

3. The straight titanium tube welding auxiliary device according to claim 1 is characterized in that: The protective cover is a copper tube, and the diameter of the protective cover ranges from 105 mm to 110 mm.

4. The straight titanium tube welding auxiliary device according to claim 3 is characterized in that: The distance from the axis of the inflation port to the upper plane of the protective cover ranges from 17 mm to 23 mm, and the length of the protective cover ranges from 280 mm to 320 mm.

5. The straight titanium tube welding auxiliary device according to claim 1, characterized in that: The protective cover is provided with a pressure sensor and a display light; the pressure sensor is provided on the concave arc and on a side of the protective cover close to the three-jaw chuck; the display light is electrically connected to the pressure sensor.

6. The straight titanium tube welding auxiliary device according to claim 1, characterized in that: The rotating mechanism also includes a mounting plate, a transmission gear and a rotating gear. A three-jaw chuck and a transmission gear are respectively mounted on two opposite sides of the mounting plate. The three-jaw chuck is coaxially arranged with the transmission gear. The transmission gear is meshed with the rotating gear. The rotating gear is arranged on the rotating shaft of the rotating driver.

7. The straight titanium tube welding auxiliary device according to claim 1, characterized in that: A roller with brake is arranged at the lower end of the base.

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