A welding device suitable for valve production

Abstract

The invention relates to the field of valve welding technology, and discloses a welding device suitable for valve production and manufacturing, comprising a body, which is fixedly connected to one side of the top of the body; a welding head, which is connected to the welding head below the top through a cylinder drive; a clamping mechanism, a clamping mechanism is provided on a fixed plate, and valves of different shapes can be stably clamped and adjusted according to the height of the valve body to increase the force-bearing area, so that the fixing effect is better; the rotating head is rotated to make its clamping roller approach the surface of the spherical valve body in a horizontal state, and then its two clamping rollers are separated, which can increase the force points of the sphere and make it more stable; when the pressure rod descends, it pushes the rotating ring to press on the top of the connecting block, so that the connecting block and the fixed frame descend at the same time, so that the bottom of the pressing block contacts and presses down with the bottom of the valve body, which is convenient for welding the three-way valve, and an anti-skid pad is fixed on the surface of the pressing block, and the contact area between the bottom of the pressing block and the chassis is large, which can easily drive the valve body to rotate and avoid slipping.

Description

Technical Field

[0001] The invention relates to the technical field of valve welding, in particular to welding equipment suitable for valve production. Background Art

[0002] Valves are control components used in long-distance oil and gas pipelines to realize gathering, distribution and flow regulation, as well as to realize station circulation, equipment connection, tank dumping, station crossing and pig sending and receiving. Valves are not only equipment to ensure the safety of pipeline operation, but also the main process equipment for automatic control and operation scheduling of pipeline transportation. Among the valves in long-distance pipelines, ball valves are more commonly used. The valve body is usually made of carbon steel or low-alloy steel, and its chemical composition has an important influence on the formation of crystallization cracks during welding. During welding, impurities such as S and P in the weld form low-melting eutectics during the crystallization process.

[0003] Welding is mainly used for cladding of valve sealing surfaces, repair welding of casting defects and places where welding is required for product structures. The selection of welding materials is related to the process method. The materials used for arc welding, plasma arc welding, submerged arc welding and carbon dioxide gas shielded welding are different. The most common and most commonly used welding method is the various materials used for arc welding.

[0004] The valve body includes a straight valve body and a ball valve body. The straight valve body is cylindrical as a whole. The existing clamping claw has a small force area when in contact with the valve body, especially the ball valve clamping effect is poor, and the existing clamping mechanism has a fixed height. For a valve body with a higher height, it cannot be adjusted according to the height of the valve body during welding. The fixing effect is not obvious, and it is easy to shake during welding, causing deviation in the welding position. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned background technology, the present invention provides a technical solution for welding equipment suitable for valve production and manufacturing, which can stably clamp valves of different shapes and increase the force-bearing area according to the height of the valve body, thereby achieving better fixing effect and solving the problems raised in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a welding device suitable for valve production and manufacturing, comprising a body, a bracket fixedly connected to one side of the top of the body; a welding head, a welding head is connected to the bottom of the top of the bracket through a cylinder drive; a fixed plate, a fixed plate is fixed to the top of the body; a clamping mechanism, a clamping mechanism is provided on the fixed plate, and the clamping mechanism can be used to stably clamp valves of different shapes and adjust the force-bearing area according to the height of the valve body to achieve a better fixing effect.

[0007] As a preferred technical solution of the present invention, the clamping mechanism includes a rotating disk, a rotating disk is rotatably installed on the top of the fixed disk; a fixed block, a plurality of fixed blocks are fixedly connected to the top of the rotating disk; a connecting block, a connecting block is slidably connected to the inside of the fixed block; a fixed frame, a fixed frame is fixed to the front surface of the connecting block; a slider, two sliders are slidably connected to the inside of the fixed frame; a U-shaped frame, the inside of the slider is telescopically connected to the U-shaped frame, and the middle part of the U-shaped frame is slidably connected to the sliding frame; a rotating head, the front surface of the sliding frame is rotatably connected to the rotating head; a pressing block, the front end of the rotating head is rotatably connected to the pressing block; a rotating cylinder, the top of the fixed frame is rotatably connected A rotating cylinder is connected; a spiral groove, two axially symmetrical spiral grooves are provided at the bottom of the rotating cylinder; an insert block is fixed on the top of the slider, and the insert block is inserted into the corresponding spiral groove; the valve body is placed on the top of the rotating disk. If the valve body is a straight valve body and has a high height, the rotating head can be rotated to make its clamping roller contact the valve body surface vertically downward, so that the high-height valve body can improve the stability effect during welding. If the valve body is a spherical valve body, the rotating head can be rotated to make its clamping roller approach the spherical valve body surface in a horizontal state, and then the two clamping rollers are separated and located on the spherical valve body surface. By separating the two clamping rollers, the force points of the sphere can be increased, making it more stable.

[0008] As a preferred technical solution of the present invention, a pressure rod is rotatably connected inside the fixing block, a surface of the pressure rod is provided with threads, a nut is fixed inside the fixing block, and the pressure rod and the nut are threadedly connected.

[0009] As a preferred technical solution of the present invention, the bottom of the pressure rod is I-shaped, and the bottom of the pressure rod is connected to a rotating ring through an I-shaped rotation. The bottom of the rotating ring is fixed to the top of the connecting block, and the threads on the surface of the pressure rod are distributed to the top of the rotating ring.

[0010] As a preferred technical solution of the present invention, a gear II is rotatably installed on the top of the fixed block, and the gear II is sleeved on the top of the pressure rod. The top of the pressure rod is provided with axially symmetrically distributed slots, and the middle part of the gear II is stuck in the slot on the top of the pressure rod.

[0011] As a preferred technical solution of the present invention, a rollable roller is provided on the surface of the connection block near the slot on the surface of the pressure rod, the roller contacts the slot on the surface of the pressure rod, and a gear ring is meshed on the surface of the gear II.

[0012] As a preferred technical solution of the present invention, a gear I is meshed on the surface of the gear ring, the bottom of the gear I is supported on the surface of the fixed block through a support rod, a support column is fixed to the bottom of the gear ring, a circular groove is opened on the top of the rotating disk, and the bottom of the support column rotates in the circular groove.

[0013] As a preferred technical solution of the present invention, a handwheel I is fixed to the top of the gear I, a handwheel II is fixed to one end of the rotating cylinder, a rotatable clamping roller is slidably connected to the surface of the pressing block, an anti-slip pad is fixed to the surface of the pressing block, and the fixed frame is fixed to the connecting block near the surface of the fixed block.

[0014] As a preferred technical solution of the present invention, a fixing rod is fixed on the surface of the U-shaped frame, and elastically retractable ball blocks are installed on the upper and lower ends of the fixing rod. A mounting frame is clamped on the surface of the ball block, and the ball block can rotate on the mounting frame. A slot is opened on the surface of the sliding frame, and a plurality of card slots are distributed circumferentially on the surface of the slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The rotating head is rotated to make its clamping roller approach the surface of the spherical valve body in a horizontal state, and then the two clamping rollers are separated and located on the surface of the spherical valve body. By separating the two clamping rollers, the force points of the sphere can be increased to make it more stable.

[0017] When the pressure rod descends, it pushes the rotating ring to press on the top of the connecting block, so that the connecting block and the fixed frame descend at the same time, so that the bottom of the pressure block contacts and presses down with the bottom of the valve body, which is convenient for welding of the three-way valve. An anti-slip pad is fixed on the surface of the pressure block, and the contact area between the bottom of the pressure block and the chassis is large, which can easily drive the valve body to rotate and avoid slipping.

[0018] The distance between the two sliders becomes smaller to clamp the valve body, which can be adjusted according to the diameter of the valve body. The direction of the clamping of the pressure block can be adjusted by rotating the sliding frame on the fixed rod, and the rotation directions of the two pressure blocks on the fixed frame are relative. For a valve body with a thicker diameter, an opposing force can be formed when clamping, making the valve body more stable during welding.

[0019] The ball block is inserted into the slot, and then the mounting frame is engaged with the slot at the edge of the slot to fix the rotation angle of the slide frame, so as to prevent the slide frame from rotating when subjected to force and affecting the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of some structures in ;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of some structures in ;

[0023] Figure 4 For the present invention Figure 3A magnified view of the structure of A1 in the middle;

[0024] Figure 5 For the present invention Figure 1 Top view of middle gear II and pressure rod;

[0025] Figure 6 For the present invention Figure 4 Structural diagram of the middle U-shaped frame;

[0026] Figure 7 For the present invention Figure 6 A2 is an enlarged view of the structure;

[0027] Figure 8 For the present invention Figure 3 The local structure diagram in ;

[0028] Fig. 9 For the present invention Figure 8 Rear view in;

[0029] Fig.10 For the present invention Figure 8 Schematic diagram of the bottom of the intermediate pressure rod.

[0030] In the figure: 1, machine body; 2, welding head; 3, fixed disk; 4, rotating disk; 401, gear ring; 402, support column; 403, fixed block; 404, gear Ⅰ; 4041, hand wheel Ⅰ; 405, fixed frame; 406, rotating cylinder; 4061, spiral groove; 4062, plug block; 4063, hand wheel Ⅱ; 408, support rod; 409, gear Ⅱ; 4091, roller; 410, slider; 412, U-shaped frame; 4121, ball block; 4122, mounting frame; 413, slide frame; 4131, slot; 414, rotating head; 415, pressure block; 416, clamping roller; 417, fixed rod; 418, pressure rod; 4181, rotating ring; 419, connecting block; 420, nut; 5, bracket. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-10As shown, a welding device suitable for valve production and manufacturing includes a body 1, a bracket 5 is fixedly connected to one side of the top of the body 1; a welding head 2, the welding head 2 is connected to the bottom of the top of the bracket 5 through a cylinder drive; a fixed plate 3, the top of the body 1 is fixed with the fixed plate 3; a clamping mechanism, the fixed plate 3 is provided with a clamping mechanism, and the clamping mechanism can stably clamp valves of different shapes and adjust the force-bearing area according to the height of the valve body to make the fixing effect better.

[0033] The valve body is placed on the top of the rotating disk 4 , and the U-shaped frame 412 extends inside the slider 410 toward the valve body to fix and clamp the valve body, and then weld it through the welding head 2 .

[0034] The clamping mechanism includes a rotating disk 4, on which the rotating disk 4 is rotatably mounted on the top of the fixed disk 3; a fixed block 403, on which a plurality of fixed blocks 403 are fixedly connected on the top of the rotating disk 4; a connecting block 419, on which the fixing block 403 is slidably connected inside; a fixed frame 405, on which the front surface of the connecting block 419 is fixedly connected; a slider 410, on which two sliders 410 are slidably connected inside the fixing frame 405; a U-shaped frame 412, on which the slider 410 is telescopically connected inside the U-shaped frame 412, and the middle of the U-shaped frame 412 The top of the fixed frame 405 is rotatably connected to the sliding frame 413; the rotating head 414 is rotatably connected to the front surface of the sliding frame 413; the pressing block 415 is rotatably connected to the front end of the rotating head 414; the rotating cylinder 406 is rotatably connected to the top of the fixed frame 405; the spiral groove 4061, the bottom of the rotating cylinder 406 is provided with two axially symmetrical spiral grooves 4061; the insert block 4062 is fixed to the top of the slider 410, and the insert block 4062 is inserted into the corresponding spiral groove 4061.

[0035] Place the valve body on the top of the rotating disk 4. If the valve body is a straight valve body and is relatively high, the rotating head 414 can be rotated so that its clamping roller 416 contacts the surface of the valve body vertically downward, thereby improving the stability of the valve body with a relatively high height during welding. If the valve body is a spherical valve body, the rotating head 414 can be rotated so that its clamping roller 416 is in a horizontal state and approaches the surface of the spherical valve body. Then, the two clamping rollers 416 are separated and located on the surface of the spherical valve body. By separating the two clamping rollers 416, the force points of the sphere can be increased, making it more stable.

[0036] A pressure rod 418 is rotatably connected inside the fixed block 403, and a thread is provided on the surface of the pressure rod 418. A nut 420 is fixed inside the fixed block 403, and the pressure rod 418 and the nut 420 are threadedly connected. The bottom of the pressure rod 418 is I-shaped, and the bottom of the pressure rod 418 is rotatably connected to a rotating ring 4181 through the I-shape. The bottom of the rotating ring 4181 is fixed to the top of the connecting block 419, and the threads on the surface of the pressure rod 418 end at the top of the rotating ring 4181.

[0037] If the three-way valve body is welded, the bottom plate of the valve body needs to be fixed. Since the contact area between the surface of the clamping roller 416 and the bottom plate is small, it is easy to slip when the valve body is driven to rotate. When the valve body is driven to rotate, the rotating head 414 can be rotated to make the pressing block 415 horizontal, and then the hand wheel Ⅰ4041 is used to rotate the gear Ⅰ404 to make it mesh with the gear ring 401 to make it rotate. The inner wall of the gear ring 401 is meshed with all the gears Ⅱ409 on the top of the fixed block 403. The gear Ⅱ409 is clamped on the pressure rod. The top of 418 drives its pressure rod 418 to rotate. The surface of the pressure rod 418 is located on the inner wall of the nut 420 and rotates downward. When the pressure rod 418 descends, it pushes the rotating ring 4181 to press on the top of the connecting block 419, so that the connecting block 419 and the fixed frame 405 descend at the same time, so that the bottom of the pressure block 415 contacts and presses down with the bottom of the valve body, which is convenient for welding of the three-way valve. An anti-slip pad is fixed on the surface of the pressure block 415, and the contact area between the bottom of the pressure block 415 and the chassis is large, which can easily drive the valve body to rotate and avoid slipping.

[0038] As a specific embodiment of the present invention, a gear II 409 is rotatably installed on the top of the fixed block 403, and the gear II 409 is sleeved on the top of the pressure rod 418. The top of the pressure rod 418 is provided with an axially symmetrically distributed slot, and the middle of the gear II 409 is stuck in the slot on the top of the pressure rod 418; a rollable roller 4091 is provided on the surface of the connecting block 419 near the slot on the surface of the pressure rod 418, and the roller 4091 contacts the slot on the surface of the pressure rod 418, and a gear ring 401 is meshed on the surface of the gear II 409; a gear I 404 is meshed on the surface of the gear ring 401, and the bottom of the gear I 404 is supported on the surface of the fixed block 403 by a support rod 408, and a support column 402 is fixed on the bottom of the gear ring 401, and a rotating disk 4 is provided on the top. A circular groove, the bottom of the support column 402 is located in the circular groove and rotates; a handwheel I 4041 is fixed on the top of the gear I 404, a handwheel II 4063 is fixed on one end of the rotating cylinder 406, a rotatable clamping roller 416 is slidably connected to the surface of the pressure block 415, an anti-skid pad is fixed on the surface of the pressure block 415, and the surface of the fixed frame 405 close to the fixed block 403 is fixed to the connecting block 419; a fixing rod 417 is fixed on the surface of the U-shaped frame 412, and elastically retractable ball blocks 4121 are installed on the upper and lower ends of the fixing rod 417, and an installation frame 4122 is clamped on the surface of the ball block 4121, and the ball block 4121 can rotate on the installation frame 4122, and a slot 4131 is opened on the surface of the sliding frame 413, and a plurality of card slots distributed circumferentially are provided on the surface of the slot 4131.

[0039] During operation, when welding a valve body with a larger diameter, the top of the slider 410 is inserted into the spiral groove 4061 through the insert block 4062, and the rotating cylinder 406 is rotated by the hand wheel II 4063 through the insert block 4062 to drive the slider 410 to slide relatively inside the fixed frame 405 to extend the distance between the two sliders 410. When welding a valve body with a smaller diameter, the rotating cylinder 406 rotates in the opposite direction, so that the distance between the two sliders 410 becomes smaller and they are clamped, which can be adjusted according to the diameter of the valve body; the clamping direction of the pressure block 415 can be adjusted by rotating the sliding frame 413 on the fixed rod 417, and the rotation directions of the two pressure blocks 415 on the fixed frame 405 are relative. For the valve body with a larger diameter, a conflicting force can be formed when clamping, so that the valve body is more stable during welding.

[0040] It should be noted that: when it is necessary to adjust the angle between the sliding frame 413 and the fixed rod 417, the sliding frame 413 can be first moved horizontally on the fixed rod 417 so that the top of the ball block 4121 moves toward the inside of the fixed rod 417 and exits the slot 4131, and then the sliding frame 413 is rotated to adjust the angle between it and the fixed rod 417, and then the sliding frame 413 is pushed again to reinsert the ball block 4121 into the slot 4131, and then the rotating angle of the sliding frame 413 is fixed by engaging the mounting frame 4122 with the slot on the edge of the slot 4131 to prevent the sliding frame 413 from rotating when it is under force and affecting the clamping effect.

[0041] 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. At the same time, in the drawings of the present invention, the fill pattern is only for distinguishing layers, without any other limitation.

[0042] 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 welding device suitable for valve production, comprising: A machine body (1), wherein a bracket (5) is fixedly connected to one side of the top of the machine body (1); A welding head (2), the welding head (2) is connected to the bottom of the top of the bracket (5) through cylinder drive; A fixed plate (3), wherein the top of the machine body (1) is fixed with a fixed plate (3); The invention is characterized in that: a clamping mechanism is provided on the fixing plate (3), and the clamping mechanism can stably clamp valves of different shapes and adjust the force-bearing area according to the height of the valve body, so as to achieve a better fixing effect; The clamping mechanism comprises a rotating disk (4), and the rotating disk (4) is rotatably mounted on the top of the fixed disk (3); A fixed block (403), a plurality of fixed blocks (403) being fixedly connected to the top of the rotating disk (4); A connecting block (419), wherein the interior of the fixing block (403) is slidably connected with the connecting block (419); A fixing frame (405), the front surface of the connecting block (419) is fixed with the fixing frame (405); Sliding blocks (410), two sliding blocks (410) are slidably connected inside the fixing frame (405); A U-shaped frame (412), the interior of the sliding block (410) is telescopically connected to the U-shaped frame (412), and the middle of the U-shaped frame (412) is slidably connected to a sliding frame (413); A rotating head (414), the front surface of the sliding frame (413) is rotatably connected to the rotating head (414); A pressing block (415), the front end of the rotating head (414) is rotatably connected with the pressing block (415); A rotating cylinder (406), the top of the fixed frame (405) is rotatably connected to the rotating cylinder (406); Spiral groove (4061), the bottom of the rotating cylinder (406) is provided with two axially symmetrical spiral grooves (4061); An insert block (4062), the top of the slider (410) is fixed with an insert block (4062), and the insert block (4062) is inserted into the corresponding spiral groove (4061); A pressure rod (418) is rotatably connected inside the fixing block (403), a surface of the pressure rod (418) is provided with threads, a nut (420) is fixed inside the fixing block (403), and the pressure rod (418) and the nut (420) are threadedly connected; The bottom of the pressure rod (418) is in an I-shape, and the bottom of the pressure rod (418) is connected to a rotating ring (4181) through an I-shape rotation. The bottom of the rotating ring (4181) is fixed to the top of the connecting block (419), and the threads on the surface of the pressure rod (418) are distributed to the top of the rotating ring (4181).

2. A welding device suitable for valve production according to claim 1, characterized in that: A gear II (409) is rotatably mounted on the top of the fixed block (403), and the gear II (409) is sleeved on the top of the pressure rod (418). The top of the pressure rod (418) is provided with axially symmetrically distributed slots, and the middle part of the gear II (409) is stuck in the slot on the top of the pressure rod (418).

3. A welding device suitable for valve production according to claim 2, characterized in that: A rollable roller (4091) is provided on the surface of the connection block (419) near the slot on the surface of the pressure rod (418), and the roller (4091) contacts the slot on the surface of the pressure rod (418). A gear ring (401) is meshed on the surface of the gear II (409).

4. A welding device suitable for valve production according to claim 3, characterized in that: The surface of the gear ring (401) is meshed with a gear I (404), the bottom of the gear I (404) is supported on the surface of a fixed block (403) via a support rod (408), a support column (402) is fixed to the bottom of the gear ring (401), a circular groove is formed on the top of the rotating disk (4), and the bottom of the support column (402) rotates in the circular groove.

5. A welding device suitable for valve production according to claim 4, characterized in that: A hand wheel I (4041) is fixed on the top of the gear I (404), a hand wheel II (4063) is fixed on one end of the rotating cylinder (406), a rotatable clamping roller (416) is slidably connected to the surface of the pressing block (415), an anti-slip pad is fixed to the surface of the pressing block (415), and the surface of the fixing frame (405) close to the fixing block (403) is fixed to the connecting block (419).

6. A welding device suitable for valve production according to claim 5, characterized in that: A fixing rod (417) is fixed on the surface of the U-shaped frame (412), and elastically retractable ball blocks (4121) are installed at both upper and lower ends of the fixing rod (417). A mounting frame (4122) is clamped on the surface of the ball block (4121), and the ball block (4121) can rotate on the mounting frame (4122). A slot (4131) is opened on the surface of the sliding frame (413), and a plurality of slots distributed circumferentially are provided on the surface of the slot (4131).

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