Special water pipe welding machine

Abstract

The utility model discloses a special water pipe welding machine which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with an L-shaped base, the upper end of the L-shaped base is movably connected with a linear module, the output end of the lower side of the linear module is connected with a rotating support, and a rotating stand column is installed in the rotating support. An arc welding gun is installed on the side, away from the rotating support, of the outer end of the rotating stand column, and a positioning pin is installed on the lower side of the rotating stand column. According to the special water pipe welding machine, the linear module moves downwards, a water pipe part is positioned through the telescopic positioning pin, the rotating motor drives the rotating stand column and the arc welding gun to move around the circumference of the water pipe at a constant speed and conduct welding, and in the welding process, the water pipe protection cover 4 and the spring piece can prevent welding slag from splashing to the thread of the water pipe; the welding quality is improved, the outer surface of a water pipe thread is protected, the production efficiency is improved, welding slag is prevented from splashing to the thread in all directions through constant-speed rotary welding, and therefore the better welding quality is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a special machine for water pipe welding. Background Art

[0002] Welding, also known as fusion, is a technology and manufacturing process that joins metals or other thermoplastic materials such as plastics together by means of heat, high temperature or high pressure.

[0003] Modern welding uses a variety of energy sources, including gas flame, arc, laser, electron beam, friction and ultrasound. Welding can be performed not only in factories, but also in a variety of environments such as the field, underwater and space.

[0004] The existing manual welding method can select appropriate welding processes and welding parameters according to different welding requirements and weldment shapes to meet various complex welding requirements. For complex circular parts with threads, the current manual welding speed is slow and the threads are easily damaged during welding. The general thread protection device cannot eliminate the spatter from the bottom to the thread, resulting in slow welding speed, poor welding quality, and a high rework rate at the thread, which in turn affects the overall production efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a special machine for water pipe welding, aiming to solve the above problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A special machine for water pipe welding, comprising:

[0008] A base plate, the upper end of which is fixedly connected to an L seat, the upper end of which is movably connected to a linear module, the lower output end of the linear module is connected to a rotating support, a rotating column is installed inside the rotating support, an arc welding gun is installed on the side of the outer end of the rotating column away from the rotating support, a positioning pin is installed on the lower side of the rotating column, and a first shield, a second shield and two sets of spring sheets are installed on the outer side of the lower end of the rotating column.

[0009] Preferably, a second bearing is installed inside the rotating support, and the second bearing is located outside the rotating column.

[0010] Preferably, the second bearing is tightly pressed against the rotating column, and the rotating column is rotatably connected to the rotating support via the second bearing.

[0011] Preferably, a column cover plate is fixedly connected to the top of the rotating column.

[0012] Preferably, a support cover plate is installed above the rotating support, and the support cover plate is located on the upper side of the second bearing and presses the second bearing.

[0013] Preferably, a rotating motor is fixedly connected to the top of the rotating support, and an output shaft of the rotating motor is connected to the rotating column.

[0014] Preferably, a first bearing is installed at one end of the rotating column away from the rotating support;

[0015] The pin sleeve is internally sleeved with a connecting rod, which is mounted on the upper end of the positioning pin;

[0016] A spring is installed on the upper side of the pin sleeve, and the spring presses against the connecting rod.

[0017] Preferably, a plug cover is provided on the upper side of the pin sleeve, and the plug cover is located on the upper side of the spring.

[0018] Preferably, the second shield is fixedly connected to the lower side of the first shield, and the spring sheets are respectively installed on both sides of the lower end of the second shield.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model provides a special machine for water pipe welding. The equipment uses a telescopic positioning pin to position the water pipe parts by moving downward through a linear module. A rotating motor drives a rotating column and an arc welding gun to move at a uniform speed around the circumference of the water pipe and weld. During the welding process, a water pipe shield 4 and a spring sheet can prevent welding slag from splashing onto the water pipe thread, thereby improving welding quality and protecting the outer surface of the water pipe thread, improving production efficiency, and realizing constant-speed rotary welding to prevent welding slag from splashing onto the thread in all directions, thereby obtaining better welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 3 This is a side view of the structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the overall structure of the arc welding gun connected to the linear module of the utility model.

[0025] In the figure: 101, base plate; 102, L seat; 201, first shield; 202, second shield; 203, spring sheet; 204, positioning pin; 205, connecting rod; 206, plug cover; 207, pin sleeve; 208, rotating column; 209, rotating support; 210, column cover; 211, support cover; 301, linear module; 401, arc welding gun; 402, first bearing; 403, second bearing; 404, rotating motor; 405, spring. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1 and Figure 2 The embodiment proposed in the present application is: a special machine for water pipe welding, including a base plate 101, an L-base 102 is fixed on the upper end of the base plate 101, and a linear module 301 is movably connected to the upper end of the L-base 102. The linear module 301 carries the equipment for up and down movement, and the lower output end of the linear module 301 is connected to a rotating support 209, and a rotating column 208 is arranged inside the rotating support 209. An arc welding gun 401 is arranged on the side of the outer end of the rotating column 208 away from the rotating support 209. The arc welding gun 401 adopts the existing technology and is installed according to the specific situation. The equipment is driven to the specified working position by the linear module 301 to ensure that the arc welding gun 401 reaches the specified welding position.

[0028] For further examples, see Figure 1-4 A second bearing 403 is also provided inside the rotating support 209. The second bearing 403 is provided on the outside of the rotating column 208 and is tightly pressed against the rotating column 208. The rotating column 208 is rotatably connected to the rotating support 209 through the second bearing 403. At the same time, a column cover plate 210 is fixed to the top of the rotating column 208, and the top of the rotating column 208 is limited by the column cover plate 210.

[0029] For further examples, see Figure 2-4A support cover plate 211 is arranged above the rotating support 209. The support cover plate 211 is located on the upper side of the second bearing 403 and presses the second bearing 403 to prevent the second bearing 403 from moving. A rotating motor 404 is fixed on the top of the rotating support 209. The output shaft of the rotating motor 404 is connected to the rotating column 208. The specific connection method can be adopted by the existing technology. When the rotating motor 404 is working, it will drive the rotating column 208 to rotate in the second bearing 403. The rotating column 208 is coaxial with the water pipe. During the movement, the welding gun performs uniform circular motion around the outer edge of the water pipe to maintain a fixed angle and uniform welding speed, thereby improving the welding quality.

[0030] A first bearing 402 is arranged inside the end of the rotating column 208 away from the rotating support 209, and a pin sleeve 207 is sleeved in the first bearing 402. A connecting rod 205 is sleeved inside the pin sleeve 207, and a spring 405 is arranged on the upper side of the pin sleeve 207, wherein the spring 405 presses the connecting rod 205 tightly, and a blocking cover 206 is arranged on the upper side of the pin sleeve 207, and the blocking cover 206 is arranged on the upper side of the spring 405, and the pin sleeve 207 is limited by the blocking cover 206. A positioning pin 204 is arranged at the lower end of the connecting rod 205, which can rotate in the first bearing 402 while the positioning pin 204 is extended and retracted.

[0031] The water pipe is positioned using a telescopic positioning pin 204, which can make the water pipe positioning more accurate and eliminate the hard connection interference caused by the movement of the linear module 301. The positioning pin 204 rotates so that the positioning pin 204 will not rotate during the rotation of the rotating column 208, avoiding the offset change caused by the friction between the positioning pin 204 and the water pipe, thereby improving the welding quality.

[0032] At the same time, a support cover plate 211 is also provided on the outer side of the rotating column 208 , and the support cover plate 211 can prevent the first bearing 402 from falling off.

[0033] For further examples, see Figure 1-3 A first protective cover 201 is arranged on the outer side of the lower end of the rotating column 208, and a second protective cover 202 is fixed on the lower side of the first protective cover 201. Spring sheets 203 are arranged on both sides of the lower end of the second protective cover 202. When the spring sheet 203 positions the water pipe, the second protective cover 202 is used to prevent welding slag from splashing onto the water pipe thread. The second protective cover 202 protects welding slag from splashing onto the water pipe thread, but the size of the protective cover 4 and the water pipe diameter cannot be tightly matched, and there is usually a gap of 1-2mm. The spring sheet 203 needs to be used to eliminate the gap. The inner diameter of the spring sheet 203 and the size of the water pipe diameter are made to fit tightly, and interference occurs during the movement. The spring sheet 203 can eliminate the interference by changing its own properties, reach the working position, prevent welding slag from flying from the bottom to the thread, and improve the welding quality.

[0034] After the equipment moves downward through the linear module 301, the telescopic positioning pin 204 positions the water pipe parts, and the rotating motor 404 is started to drive the rotating column 208 and the arc welding gun 401 to move at a constant speed around the outer edge of the water pipe to weld the water pipe. During the welding process, the second shield 202 and the spring sheet 203 can prevent the welding slag from splashing onto the water pipe thread, improve the welding quality and protect the outer surface of the water pipe thread, and improve production efficiency. Constant speed rotation welding is achieved to prevent welding slag from splashing onto the thread in all directions, thereby obtaining better welding quality.

[0035] 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.

[0036] Although 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 special machine for water pipe welding, characterized in that: include: A base plate (101) is provided, wherein the upper end of the base plate (101) is fixedly connected to an L seat (102), the upper end of the L seat (102) is movably connected to a linear module (301), the lower output end of the linear module (301) is connected to a rotating support (209), a rotating column (208) is installed inside the rotating support (209), an arc welding gun (401) is installed on the side of the outer end of the rotating column (208) away from the rotating support (209), a positioning pin (204) is installed on the lower side of the rotating column (208), and a first protective cover (201), a second protective cover (202) and two groups of spring sheets (203) are installed on the outer side of the lower end of the rotating column (208).

2. A water pipe welding machine according to claim 1, characterized in that: A second bearing (403) is installed inside the rotating support (209), and the second bearing (403) is located outside the rotating column (208).

3. A water pipe welding machine according to claim 2, characterized in that: The second bearing (403) is tightly pressed against the rotating column (208), and the rotating column (208) is rotatably connected to the rotating support (209) via the second bearing (403).

4. A water pipe welding machine according to claim 1, characterized in that: A column cover plate (210) is fixedly connected to the top of the rotating column (208).

5. A water pipe welding machine according to claim 2, characterized in that: A support cover plate (211) is installed above the rotating support (209), and the support cover plate (211) is located on the upper side of the second bearing (403) and presses the second bearing (403).

6. A water pipe welding machine according to claim 1, characterized in that: A rotating motor (404) is fixedly connected to the top of the rotating support (209), and an output shaft of the rotating motor (404) is connected to the rotating column (208).

7. A water pipe welding machine according to claim 1, characterized in that: A first bearing (402) is installed at one end of the rotating column (208) away from the rotating support (209), and a pin sleeve (207) is sleeved inside the first bearing (402); The pin sleeve (207) is internally sleeved with a connecting rod (205), and the connecting rod (205) is installed on the upper end of the positioning pin (204); A spring (405) is installed on the upper side of the pin sleeve (207), and the spring (405) is pressed against the connecting rod (205).

8. A water pipe welding machine according to claim 7, characterized in that: A blocking cover (206) is provided on the upper side of the pin sleeve (207), and the blocking cover (206) is located on the upper side of the spring (405).

9. A water pipe welding machine according to claim 1, characterized in that: The second shield (202) is fixedly connected to the lower side of the first shield (201), and the spring sheets (203) are respectively installed on both sides of the lower end of the second shield (202).

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