Welding device for elbow machining and manufacturing

Abstract

The invention relates to the technical field of pipe fitting welding, in particular to a welding device for elbow machining and manufacturing. Comprising a control frame, and a mechanical arm and a rotating disc are arranged on the control frame; the two rotating frames are rotatably connected to the control frame through rotating shafts, the rotating frames are slidably connected with the rotating disc, connecting sliding blocks are slidably connected to the rotating frames, rotating frames are rotatably connected to the connecting sliding blocks, and fixing blocks are fixedly connected to the connecting sliding blocks; and the sliding supporting rod is arranged on the mechanical arm, a rotating straight plate is arranged on the sliding supporting rod, and welding equipment is arranged on the rotating straight plate. According to the elbow welding device, the connecting sliding block slides along the rotating frame, and the rotating frame and the fixing block extrude each other, so that elbows of different specifications can be accurately fixed to the rotating disc, the possibility that welding equipment controlled by a mechanical arm collides with the elbows is reduced, and the elbow welding efficiency of the elbow welding device is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pipe welding, in particular to a welding device for processing and manufacturing elbows. Background Art

[0002] Elbow, also known as elbow, is a curved pipe fitting, mainly used for pipeline connection, mechanical structure support and other occasions requiring curved shape. There are various methods for manufacturing elbows, including forging, stamping, welding, etc. Among them, butt welding elbow is a commonly used manufacturing method. The process usually includes the following steps: first, cutting a plate of a specific shape; then, stamping the plate into two half elbows; then, merging the two half elbows into a whole elbow and spot welding them at the joints; finally, fixing the elbow on a disc, driving the elbow to rotate by the disc and combining with a robotic arm to perform submerged arc welding on the joints of the elbow.

[0003] However, in the process of working, the existing butt-welded pipe bending manufacturing device is difficult to determine the position of the edge of the bent pipe on the disc, especially when processing large-sized and heavy bent pipes. It is necessary to continuously adjust the position and swing angle of the bent pipe. Due to the heavy weight of the bent pipe, it is very difficult to adjust the position of the bent pipe on the disc, which makes it easy for the fixed position of the bent pipe on the disc to deviate, resulting in the misalignment of the projected center of the bent pipe on the disc and the actual center of the disc. This not only affects the production efficiency of the bent pipe, but also leads to unstable product quality and increased production costs. Summary of the Invention

[0004] Aiming at the problem that the positioning of the elbow on the disc is prone to deviation, the present invention provides a welding device for processing and manufacturing the elbow.

[0005] The technical implementation scheme of the present invention is: a welding device for elbow processing and manufacturing, comprising:

[0006] A control frame, wherein a mechanical arm and a rotating disk are provided on the control frame, and the control frame is used to control the erection and rotation of the rotating disk, and the rotating disk is provided with a plurality of slide slots;

[0007] Two rotating frames are both rotatably connected to the control frame via a rotating shaft, the rotating frame is slidably connected to the rotating disk, a connecting slider is slidably connected to the rotating frame, a first tension spring is fixedly connected between the connecting slider and the rotating frame, the connecting slider is rotatably connected to the rotating frame, and a fixed block is fixedly connected to the connecting slider, and the fixed block is used to limit the rotation limit of the rotating frame;

[0008] A sliding support rod is provided on the mechanical arm, wherein a rotating straight plate is provided on the sliding support rod, and a welding device is provided on the rotating straight plate;

[0009] The supporting mechanism is arranged on the rotating disk and is used for stably fixing the bent pipe to be welded on the rotating disk.

[0010] As a preferred embodiment of the present invention, the support mechanism includes:

[0011] A threaded rod is rotatably connected to the rotating disk, a motor is fixedly connected to the rotating disk, an output shaft of the motor is fixedly connected to the threaded rod, the threaded rod is threadedly connected to a support block, and the support block is slidably connected to the rotating disk;

[0012] Two rotating sleeves are both rotatably connected to the support block;

[0013] a synchronization assembly, disposed on the rotating disk, for ensuring that the distances between the two rotating frames and the threaded rods are the same;

[0014] Two fixing components are both arranged on the control frame and are used to assist in fixing the bent pipe.

[0015] As a preferred embodiment of the present invention, two sleeves are rotatably connected to the rotating frame to assist the two rotating sleeves in adjusting the positions of the bent pipes so that the two rotating sleeves support the bent pipes in the center.

[0016] As a preferred embodiment of the present invention, a rotating bolt is threadedly connected to the rotating frame, and the rotating bolt is rotatably connected to a limiting block, and the two limiting blocks are used to prevent the two rotating frames from moving away from each other.

[0017] As a preferred embodiment of the present invention, the synchronization component includes:

[0018] The connecting block is slidably connected to the rotating disk. The two rotating frames are slidably connected with sliding blocks. The connecting block is rotatably connected to two connecting plates. The connecting plates are rotatably connected to the adjacent sliding blocks.

[0019] As a preferred embodiment of the present invention, the fixing assembly includes:

[0020] The rotating plate is rotatably connected to the control frame. A fixing plate is provided on the rotating plate, and the fixing plate is used to fix the pipe opening of the elbow.

[0021] As a preferred embodiment of the present invention, the fixing assembly further comprises:

[0022] A limiting post is provided on the rotating plate, and the limiting post fixes the rotating plate through a sliding groove on the rotating disk;

[0023] A fixing bolt is threadedly connected to the rotating plate, and the fixing bolt is used to squeeze the rotating disk so that the rotating plate and the rotating disk are relatively fixed.

[0024] As the preferred embodiment of the present invention, it also includes:

[0025] A positioning mechanism is provided on the rotating straight plate, and is used to assist in controlling the distance between the welding equipment on the rotating straight plate and the elbow joint. The positioning mechanism includes:

[0026] The sliding rods of rectangular distribution are all slidably connected to the rotating straight plate, the mechanical arm is slidably connected to the sliding support rod, a spring is fixed between the sliding support rod and the mechanical arm, the sliding support rod is rotatably connected to the rotating straight plate, a symmetrical second tension spring is fixed between the sliding support rod and the rotating straight plate, the sliding rod is fixed to a limit bent plate, a third tension spring is fixed between the limit bent plate and the rotating straight plate, the limit bent plate is slidably connected to the rotating straight plate, a blind hole is provided on the sliding support rod, and the limit bent plate limits the rotation of the rotating straight plate through the blind hole of the sliding support rod;

[0027] The partition assembly is arranged on the rotating straight plate and is used to gather the granular flux used by the welding equipment on the rotating straight plate.

[0028] As a preferred embodiment of the present invention, the partition assembly includes:

[0029] Three fixed rods are all fixedly connected to the rotating straight plate. The three fixed rods form an N shape. A plurality of sliding baffles are slidably connected to the fixed rods. A fourth tension spring is fixedly connected between the sliding baffles and the fixed rods.

[0030] As a preferred embodiment of the present invention, a roller is provided at the lower end of the sliding rod to assist the relative sliding of the sliding rod and the bent pipe, and the two adjacent sliding baffles slide against each other to assist the two adjacent rollers to adapt to the arc surface of the bent pipe to block the flux.

[0031] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention connects the slider to slide along the rotating frame, combined with the mutual extrusion of the rotating frame and the fixed block, so that elbows of different specifications can be accurately fixed on the rotating disk, reducing the possibility of collision between the welding equipment controlled by the robotic arm and the elbow, and ensuring the efficiency of the device in welding elbows.

[0032] 2. The present invention fixes the elbow together with the rotating plate and the fixed plate in the fixing assembly, thereby reducing the possibility of relative sliding of the elbow during the rotation of the rotating disk and ensuring the stability of the elbow welding state.

[0033] 3. The present invention limits the sliding support rod and the rotating straight plate by the limiting bent plate in the positioning mechanism, so that the relative angle between the welding device at the rotating straight plate and the elbow joint remains unchanged, ensuring the consistency of the quality of the welding fingers at different positions of the elbow joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the parts of the rotating frame and the rotating plate of the present invention;

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure of the parts of the rotating frame and the rotating rack of the present invention;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the threaded rod and motor parts of the present invention;

[0038] Figure 5 It is a schematic diagram of the three-dimensional structure of the parts at the rotating bolt and the limit block of the present invention;

[0039] Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding block and the connecting plate parts of the present invention;

[0040] Figure 7 This is a schematic diagram of the three-dimensional structure of the parts connecting the slider and the fixed block of the present invention;

[0041] Figure 8 It is a schematic diagram of the three-dimensional structure of the parts of the limiting column and the fixing bolt of the present invention;

[0042] Figure 9 It is a schematic diagram of the three-dimensional structure of the sliding support rod and the rotating straight plate parts of the present invention;

[0043] Figure 10 It is a schematic diagram of the three-dimensional structure of the sliding support rod and the limiting bent plate parts of the present invention;

[0044] Figure 11 It is a three-dimensional structural diagram of the relative positions of the sliding support rod and the rotating straight plate of the present invention;

[0045] Figure 12 This is a cross-sectional view of the parts at the rotating straight plate and the fixed rod of the present invention.

[0046] In the accompanying drawings: 1-control frame, 2-mechanical arm, 3-rotating disk, 4-rotating frame, 5-connecting slider, 6-rotating frame, 7-fixed block, 61-sliding support rod, 62-rotating straight plate, 21-threaded rod, 22-motor, 23-support block, 24-rotating sleeve, 25-rotating bolt, 26-limiting block, 31-connecting block, 32-sliding block, 33-connecting plate, 41-rotating plate, 42-fixed plate, 51-limiting column, 52-fixing bolt, 71-sliding rod, 72-limiting bent plate, 81-fixed rod, 82-sliding baffle. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1 -Attached Figure 12The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0048] Example 1: During the operation of the existing elbow welding device, the operator needs to fix the elbow on different positions of the rotating disc according to the different curvatures of the elbow, so that the center of the circle where the elbow is located coincides with the center of the disc. Due to the heavy weight and large volume of the elbow, the position of the edge of the elbow on the disc is difficult to determine, and the position and swing angle of the elbow need to be continuously adjusted, which makes the position of the elbow fixed on the disc prone to deviation, affecting the production efficiency of the elbow.

[0049] A welding device for elbow processing and manufacturing, please refer to the attached Figure 1 -Attached Figure 7 As shown, it includes: a control frame 1, a mechanical arm 2 and a rotating disk 3 are provided on the control frame 1, the control frame 1 is used to control the erection and rotation of the rotating disk 3, and a plurality of slide slots are provided on the rotating disk 3; two rotating frames 4 are rotatably connected to the control frame 1 through a rotating shaft, the rotating frame 4 is slidably connected to the rotating frame 4 with a connecting slider 5, a first tension spring is fixed between the connecting slider 5 and the rotating frame 4, the connecting slider 5 is rotatably connected to the rotating frame 6, and the connecting slider 5 is fixedly connected to the fixed block 7, and the fixed block 7 is used to limit the rotation limit of the rotating frame 6; a sliding support rod 61 is provided on the mechanical arm 2, a rotating straight plate 62 is provided on the sliding support rod 61, and a welding device is provided on the rotating straight plate 62; a supporting mechanism is provided on the rotating disk 3, and is used to stably fix the bent pipe to be welded on the rotating disk 3, and the supporting mechanism includes In summary: the threaded rod 21 is rotatably connected to the rotating disk 3, and the rotating disk 3 is fixedly connected to a motor 22. The output shaft of the motor 22 is fixedly connected to the threaded rod 21. The threaded rod 21 is threadedly connected to a support block 23, and the support block 23 is slidingly connected to the rotating disk 3; the two rotating sleeves 24 are both rotatably connected to the support block 23; the synchronization component is provided on the rotating disk 3, and is used to make the distance between the two rotating frames 4 and the threaded rod 21 the same; the two fixed components are both provided on the control frame 1, and are used to assist in fixing the bent pipe. The rotating frame 6 is rotatably connected to two sleeves, and is used to assist the two rotating sleeves 24 in adjusting the position of the bent pipe so that the two rotating sleeves 24 support the bent pipe in the center. The rotating frame 4 is threadedly connected to a rotating bolt 25, and the rotating bolt 25 is rotatably connected to a limit block 26. The two limit blocks 26 are used to prevent the two rotating frames 4 from moving away from each other.

[0050] In the above scheme, the problem that the position of the bent pipe fixed on the disc is prone to deviation is solved; a control console is provided on one side of the control frame 1 (an existing mechanism, not shown in the figure), and a pressure sensor is provided on the fixed block 7. The control frame 1, the mechanical arm 2, the motor 22, the welding equipment on the rotating straight plate 62 and the pressure sensor on the fixed block 7 are all electrically connected to the control console. The first tension spring between the connecting slider 5 and the rotating frame 4 ensures that the connecting slider 5 maintains its initial position when no external force is applied through its elastic force, and provides a buffer when the bent pipe squeezes the rotating frame 6. The rotating disk 3 is initially in a horizontal state, and the control frame 1 controls the rotating disk 3 to change from a horizontal state to a vertical state. At the same time, the control frame 1 can control the rotating disk 3 to rotate, and the rotating disk 3 drives the bent pipe thereon to rotate synchronously. The mechanical arm 2 only needs to keep the welding equipment on the rotating straight plate 62 in the set position, and the welding equipment can complete the welding operation at the elbow joint. The angle between the two sleeves on the rotating frame 6 and the line connecting the center of the rotating circle of the rotating frame 6 is an obtuse angle. When both sleeves are in contact with the elbow, the angle bisector of the rotating frame 6 passes through the center of the elbow, which is convenient for judging whether the center of the elbow coincides with the center of the rotating disk 3 according to the position of the rotating frame 6. Only when the symmetry plane of the rotating frame 6 passes through the center of the rotating disk 3, the center of the elbow coincides with the center of the rotating disk 3 (that is, when the pressure sensor on the fixed block 7 is squeezed), the rotating frame 4 is N-shaped, and the limit block 26 is provided with an inclined surface. The limit block 26 prevents the rotating frame 4 from rotating on the rotating disk 3 by inserting its inclined surface into the gap between the rotating frame 4 and the rotating disk 3.

[0051] Workflow: When using this device to manufacture bent pipes, the operator first controls the rotation of the rotating disk 3 through the console to move the support block 23 to the front of the rotating disk 3. Then, the operator moves the spot-welded bent pipe onto the rotating disk 3 so that the bent pipe can be stably supported by the two rotating sleeves 24 after being erected along the rotating disk 3. Then, the operator roughly adjusts the position of the rotating frame 4 according to the specifications of the bent pipe. In the process of the bent pipe moving along the rotating disk 3, the sleeve on the rotating frame 6 always keeps in contact with the bent pipe. The synchronization component makes the two connecting sliders 5 symmetrically distributed relative to the threaded rod 21. Afterwards, the operator rotates the rotating frame 4. The movable bolt 25 inserts the limit block 26 between the rotating frame 4 and the rotating disk 3, so that the two rotating frames 4 cannot move further away from each other. Then the console controls the control frame 1 to gradually change the rotating disk 3 to a vertical state. The bent pipe falls on the two rotating sleeves 24 and is supported by them. The two pipe openings of the bent pipe are tilted upward. In the process of the bent pipe moving on the rotating disk 3, taking the rotating frame 4 on the left as an example, the bent pipe squeezes and pushes the rotating frame 6, and the rotating frame 6 rotates relative to the connecting slider 5. The two sleeves on the rotating frame 6 are in contact with the bent pipe. The bent pipe drives the connecting slider 5 to move through the rotating frame 6, and the first tension spring between the connecting slider 5 and the rotating frame 4 is stretched.

[0052] When the rotating disk 3 becomes vertical, the motor 22 is located at the bottom of the rotating disk 3, and the control console starts the motor 22. The output shaft of the motor 22 drives the threaded rod 21 to rotate. The threaded rod 21 controls the support block 23 to drive the two rotating sleeves 24 to gradually move downward. The bent pipe moves downward synchronously with the support block 23. The two sleeves on the rotating frame 6 always keep in contact with the bent pipe. At the same time, the rotating frame 6 rotates clockwise (from front to back) relative to the connecting slider 5, and the rotating frame 6 moves to the left side of the bent pipe, and the contact position of the rotating frame 6 with the bent pipe changes.

[0053] During the rotation of the rotating frame 6, when the rotating frame 6 contacts and squeezes the pressure sensor on the fixed block 7, the console turns off the motor 22. At this time, the bent pipe is supported by the rotating frame 6 and the two rotating sleeves 24. The center of the circle where the bent pipe is located coincides with the center of the rotating disk 3. Then the operator controls the two fixing components to complete the fixation of the two pipe openings of the bent pipe (after the rotating disk 3 drives the bent pipe to rotate to the uppermost side, the rotating disk 3 remains stable and fixed and will not fall). Finally, the console controls the robotic arm 2 to move the welding equipment on the rotating straight plate 62 to the set position. The console starts the welding equipment and the control frame 1, so that the rotating disk 3 drives the bent pipe to rotate. , completing the welding of the elbow joint. When the elbow welding is completed, the console controls the robot arm 2 and the parts on it to move and reset. At the same time, the console turns off the welding equipment. The console controls the control frame 1 to change the rotating disk 3 to a horizontal state. Then the operator releases the fixation of the fixing assembly and rotates the rotating bolt 25 to release the limit block 26 from the fixation of the rotating frame 4. Then the operator takes away the elbow. The console controls the support block 23 to move and reset through the threaded rod 21 and the motor 22. The connecting slider 5 moves and resets under the tension of the first tension spring connected to it. At this point, all parts in the device have returned to their initial positions and can be welded to the next elbow.

[0054] Please refer to the attached Figure 1 -Attached Figure 6 and attached Figure 8 As shown, the synchronization component includes: a connecting block 31, which is slidably connected to the rotating disk 3, and the two rotating frames 4 are slidably connected with sliding blocks 32. The connecting block 31 is rotatably connected to two connecting plates 33, and the connecting plates 33 are rotatably connected to adjacent sliding blocks 32. The fixing component includes: a rotating plate 41, which is rotatably connected to the control frame 1. A fixed plate 42 is provided on the rotating plate 41, and the fixed plate 42 is used to fix the pipe mouth of the bent pipe. The fixing component also includes: a limiting column 51, which is provided on the rotating plate 41, and the limiting column 51 fixes the rotating plate 41 through the slide groove on the rotating disk 3; a fixing bolt 52, which is threadedly connected to the rotating plate 41, and the fixing bolt 52 is used to squeeze the rotating disk 3 so that the rotating plate 41 and the rotating disk 3 are relatively fixed.

[0055] In the above scheme, the purpose is to keep the relative position of the bent pipe unchanged during the rotation of the rotating disk 3, so as to ensure the continuity of welding at the joint of the bent pipe by the welding equipment on the rotating straight plate 62; the synchronization component ensures that the two rotating frames 4 always move symmetrically with the threaded rod 21 as the center through the linkage between the connecting block 31 and the two sliding blocks 32. When one of the rotating frames 4 is adjusted to its position, the rotating frame 4 drives the connecting block 31 to slide through the sliding block 32 and the connecting plate 33, forcing the other rotating frame 4 to move synchronously in the opposite direction, thereby keeping the angles between the two rotating frames 4 and the threaded rod 21 consistent. The rotating plate 41 is composed of an L-shaped bent plate and a circular ring. The extension line of the edge line of the facing surface of the rotating plate 41 passes through the center of the rotating disk 3, so that the rotating plate 41 can fit the end of the bent pipe and the fixed plate 42 accurately fixes the pipe mouth of the bent pipe close to the nearest point of the rotating disk 3. Combined with the fixation of the bent pipe by the two rotating sleeves 24, the bent pipe is stably fixed on the rotating disk 3, reducing the possibility of position displacement during the welding process of the bent pipe. The distribution of the L-shaped bent plate and the circular ring on the rotating plate 41 ensures that there is only one limiting point of the limiting column 51 on the sliding groove of the rotating plate 41 and the rotating disk 3 per unit time. The fixed plate 42 and the limiting column 51 are not initially installed on the rotating plate 41, and the fixed plate 42 and the limiting column 51 are subsequently manually installed by the operator.

[0056] Working process: After the rotating frame 6 contacts and squeezes the pressure sensor on the fixed block 7, the operator moves the two rotating plates 41 to make the rotating plate 41 fit the end of the elbow, and then the operator installs the fixed plate 42 onto the rotating plate 41. The fixed plate 42 fixes the pipe mouth of the elbow close to the nearest point of the rotating disk 3. At the same time, the operator inserts the limiting column 51 into the intersection of the rotating plate 41 and the sliding groove on the rotating disk 3. The limiting column 51 clamps the rotating plate 41, and the rotating plate 41 and the rotating disk 3 are relatively fixed. Finally, the operator tightens the fixing bolts 52 to fix the rotating plate 41 and the rotating disk 3, thereby increasing the stability of the fixation of the elbow and the rotating disk 3. When the operator adjusts the position of the two rotating frames 4, if the two rotating frames 4 need to move away from each other, the sliding block 32 drives the connecting plate 33 to rotate relative to the connecting block 31, and the connecting block 31 slides with the rotating disk 3, so that the two rotating frames 4 are synchronously away from the threaded rod 21, thereby completing the fixation of the elbow, and then the joint of the elbow is welded. When the elbow welding is completed, the operator rotates the fixing bolt 52, removes the limit column 51 and the fixing plate 42 (the operator removes the limit column 51 and the fixing plate 42 on the rotating plate 41), and releases the fixation of the rotating plate 41 on the elbow. At this point, all parts in the device are restored to their initial positions.

[0057] In the above embodiment, the sliding connection between the robot arm 2 and the sliding support rod 61 and the connection relationship between the sliding support rod 61 and the rotating straight plate 62 can be regarded as a fixed connection. However, in the lower embodiment, the connection relationship between the robot arm 2 and the sliding support rod 61 is a sliding connection, and the connection relationship between the sliding support rod 61 and the rotating straight plate 62 is a rotating connection.

[0058] Example 2: Based on Example 1, please refer to the attached Figure 9 -Attached Figure 12 As shown, it also includes: a positioning mechanism, which is arranged on the rotating straight plate 62, for assisting in controlling the distance between the welding equipment on the rotating straight plate 62 and the elbow joint, the positioning mechanism includes: rectangularly distributed sliding rods 71, all of which are slidably connected to the rotating straight plate 62, the mechanical arm 2 is slidably connected to the sliding support rod 61, a spring is fixed between the sliding support rod 61 and the mechanical arm 2, the sliding support rod 61 is rotatably connected to the rotating straight plate 62, a symmetrical second tension spring is fixed between the sliding support rod 61 and the rotating straight plate 62, the sliding rod 71 is fixed to the limiting bent plate 72, a third tension spring is fixed between the limiting bent plate 72 and the rotating straight plate 62, the limiting bent plate 72 is slidably connected to the rotating straight plate 62, and a spring is provided on the sliding support rod 61. Blind hole, the limiting bent plate 72 limits the rotation of the rotating straight plate 62 through the blind hole of the sliding support rod 61; the partition assembly is arranged on the rotating straight plate 62, and is used to gather the granular flux used by the welding equipment on the rotating straight plate 62. The partition assembly includes: three fixed rods 81, all fixedly connected to the rotating straight plate 62, and the three fixed rods 81 form an N shape. A plurality of sliding baffles 82 are slidably connected to the fixed rod 81, and a fourth tension spring is fixed between the sliding baffle 82 and the fixed rod 81. A roller is provided at the lower end of the sliding rod 71 for assisting the relative sliding of the sliding rod 71 and the bent pipe. The two adjacent sliding baffles 82 slide with each other to assist the two adjacent rollers to adapt to the arc surface of the bent pipe to block the flux.

[0059] In the above scheme, it is intended to solve the problem that since the bend is formed by connecting two half-bends formed by stamping, there may be a bulge at the joint of the bend, which causes the distance between the welding device and the bend joint to temporarily change, affecting the uniformity of the submerged arc welding quality at the bend joint; the four limiting bend plates 72 simultaneously limit the sliding support rod 61 through the blind hole, and only when the four sliding rods 71 simultaneously contact the extruded bend, the sliding support rod 61 and the rotating straight plate 62 can slide relative to each other, and the sliding support rod 61 and the rotating straight plate 62 are quickly reset by two symmetrically distributed second tension springs after the sliding rod 71 loses contact with the bend, and the welding equipment on the rotating straight plate 62 has an arc generating mechanism. (a component of existing submerged arc welding equipment), the welding equipment on the rotating straight plate 62 has a flux recovery mechanism (a component of existing submerged arc welding equipment), and the three fixed rods 81 are arranged in an N shape, surrounding the arc generating mechanism of the welding equipment, leaving an opening only on the flux recovery side; the sliding baffle 82 is tightly attached to the surface of the bent pipe through the fourth tension spring, and automatically adjusts its position with the curvature of the bent pipe to prevent the flux from diffusing to non-target areas, ensuring that the welding process is clean and efficient. The number of sliding rods 71 in this device is set to four, and the number of second tension springs on the rotating straight plate 62 is two, and the two second tension springs are respectively located on the left and right sides of the rotating connection between the rotating straight plate 62 and the sliding support rod 61.

[0060] After the cam 72 is in the closed position, the locking cam 73 is in the closed position, and the locking cam 73 is in the closed position, so that the cam 73 can slide in the closed position, and the cam 73 is ... The extrusion pressure between the wheel and the bent pipe is different, the rotating straight plate 62 swings relative to the sliding support rod 61, and the second tension spring between the sliding support rod 61 and the rotating straight plate 62 is stretched, so that the arc generating mechanism of the welding equipment at the rotating straight plate 62 is perpendicular to the tangent of the welding point at the bent pipe joint. Finally, the extrusion pressure between the rollers and the bent pipe on the four sliding rods 71 becomes the same size, and then the console controls the rotation of the rotating disk 3 through the control frame 1. The console starts the welding equipment at the rotating straight plate 62 to continuously weld the welds of the bent pipe. Through the relative rotation of the sliding support rod 61 and the rotating straight plate 62, the relative angle between the welding equipment at the rotating straight plate 62 and the welding point at the bent pipe joint remains unchanged, ensuring that the welding effect at different positions of the bent pipe joint is the same.

[0061] Since the inner seam of the elbow is convex, when the welding equipment at the rotating straight plate 62 piles the flux on the seam of the elbow, the flux will slide off the elbow along the convex surface of the elbow. When the sliding rod 71 contacts and squeezes the elbow, the sliding baffle 82 squeezes the elbow synchronously, and the sliding baffle 82 moves upward relative to the fixed rod 81. The sliding baffle 82 stretches the fourth tension spring connected to it, and multiple sliding baffles 82 cooperate to block the movement of the flux. At the same time, during the process of welding the elbow by this device, if the welding equipment at the rotating straight plate 62 encounters a convex elbow seam, the sliding support rod 61 and the rotating straight plate 62 are squeezed upward by the sliding rod 71, and the sliding support rod 61 compresses the spring connected to it. Ensure that the distance between the welding equipment at the rotating straight plate 62 and the elbow joint remains unchanged. When the elbow welding is completed, the console controls the mechanical arm 2 to move and reset, the sliding rod 71 loses contact with the elbow, and the sliding support rod 61 and the rotating straight plate 62 swing and reset under the tension of the two second tension springs. The limiting bent plate 72 drives the sliding rod 71 to reset under the tension of the third tension spring connected to it. The four limiting bent plates 72 re-limit the sliding support rod 61 and the rotating straight plate 62, and the sliding baffle 82 moves and resets under the tension of the fourth tension spring connected to it. The sliding support rod 61 moves and resets under the elastic force of the spring connected to it. At this point, all parts in this device are moved and reset.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can better understand and utilize the present invention. As long as they do not deviate from the structure of the invention or exceed the scope of protection of the present invention, they should fall within the scope of protection of the present invention.

Claims

1. A welding device for elbow processing and manufacturing, characterized in that: include: A control frame (1), wherein a mechanical arm (2) and a rotating disk (3) are provided on the control frame (1), the control frame (1) is used to control the erection and rotation of the rotating disk (3), and the rotating disk (3) is provided with a plurality of slide slots; Two rotating frames (4) are both rotatably connected to the control frame (1) via a rotating shaft. The rotating frame (4) is slidably connected to the rotating disk (3). A connecting slider (5) is slidably connected to the rotating frame (4). A first tension spring is fixedly connected between the connecting slider (5) and the rotating frame (4). A rotating frame (6) is rotatably connected to the connecting slider (5). A fixed block (7) is fixedly connected to the connecting slider (5). The fixed block (7) is used to limit the rotation limit of the rotating frame (6). A sliding support rod (61) is provided on the mechanical arm (2); a rotating straight plate (62) is provided on the sliding support rod (61); and a welding device is provided on the rotating straight plate (62); A supporting mechanism is provided on the rotating disk (3) and is used for stably fixing the bent pipe to be welded on the rotating disk (3).

2. A welding device for elbow processing and manufacturing according to claim 1, characterized in that: The supporting mechanism comprises: A threaded rod (21) is rotatably connected to the rotating disk (3), a motor (22) is fixedly connected to the rotating disk (3), an output shaft of the motor (22) is fixedly connected to the threaded rod (21), the threaded rod (21) is threadedly connected to a support block (23), and the support block (23) is slidably connected to the rotating disk (3); Two rotating sleeves (24) are both rotatably connected to the support block (23); a synchronization component, arranged on the rotating disk (3), for making the distances between the two rotating frames (4) and the threaded rod (21) the same; Two fixing components are both arranged on the control frame (1) and are used to assist in fixing the bent pipe.

3. A welding device for elbow processing and manufacturing according to claim 2, characterized in that: The rotating frame (6) is rotatably connected to two sleeves for assisting the two rotating sleeves (24) in adjusting the position of the bent pipe so that the two rotating sleeves (24) support the bent pipe in the center.

4. A welding device for elbow processing and manufacturing according to claim 2, characterized in that: A rotating bolt (25) is threadedly connected to the rotating frame (4), and the rotating bolt (25) is rotatably connected to a limiting block (26). The two limiting blocks (26) are used to prevent the two rotating frames (4) from moving away from each other.

5. The welding device for elbow processing and manufacturing according to claim 4, characterized in that: The synchronization component includes: A connecting block (31) is slidably connected to the rotating disk (3), and sliding blocks (32) are slidably connected to the two rotating frames (4). The connecting block (31) is rotatably connected to two connecting plates (33), and the connecting plates (33) are rotatably connected to adjacent sliding blocks (32).

6. The welding device for elbow processing and manufacturing according to claim 2, characterized in that: The fixing assembly includes: A rotating plate (41) is rotatably connected to the control frame (1); a fixing plate (42) is provided on the rotating plate (41); and the fixing plate (42) is used to fix the pipe opening of the elbow.

7. The welding device for elbow processing and manufacturing according to claim 6, characterized in that: The fixing assembly further comprises: A limiting post (51) is provided on the rotating plate (41), and the limiting post (51) fixes the rotating plate (41) through a sliding groove on the rotating disk (3); A fixing bolt (52) is threadedly connected to the rotating plate (41), and the fixing bolt (52) is used to press the rotating disk (3) so that the rotating plate (41) and the rotating disk (3) are relatively fixed.

8. The elbow processing and manufacturing welding device according to claim 1 is characterized in that include: A positioning mechanism is provided on the rotating straight plate (62) for assisting in controlling the distance between the welding equipment on the rotating straight plate (62) and the elbow joint, the positioning mechanism comprising: The sliding rods (71) are all slidably connected to the rotating straight plate (62), the mechanical arm (2) is slidably connected to the sliding support rod (61), a spring is fixed between the sliding support rod (61) and the mechanical arm (2), the sliding support rod (61) is rotatably connected to the rotating straight plate (62), a symmetrical second tension spring is fixed between the sliding support rod (61) and the rotating straight plate (62), the sliding rod (71) is fixed to the limiting bent plate (72), a third tension spring is fixed between the limiting bent plate (72) and the rotating straight plate (62), the limiting bent plate (72) is slidably connected to the rotating straight plate (62), a blind hole is provided on the sliding support rod (61), and the limiting bent plate (72) limits the rotation of the rotating straight plate (62) through the blind hole of the sliding support rod (61); A partition assembly is provided on the rotating straight plate (62) and is used for gathering granular flux used by welding equipment on the rotating straight plate (62).

9. The welding device for manufacturing elbows according to claim 8, characterized in that: The partition assembly comprises: Three fixed rods (81) are all fixedly connected to the rotating straight plate (62), and the three fixed rods (81) form an N shape. A plurality of sliding baffles (82) are slidably connected to the fixed rods (81), and a fourth tension spring is fixedly connected between the sliding baffles (82) and the fixed rods (81).

10. The elbow processing and manufacturing welding device according to claim 9, characterized in that: A roller is provided at the lower end of the sliding rod (71) for assisting the relative sliding of the sliding rod (71) and the bent pipe, and two adjacent sliding baffles (82) slide relative to each other to assist the two adjacent rollers to adapt to the arc surface of the bent pipe to block the flux.

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