A welding device for valve production
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU XINGYI VALVE CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-05
Smart Images
Figure CN120680231B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of valve welding technology, specifically to a welding apparatus for valve production. Background Technology
[0002] In patent application CN202123029091.6, a hydraulic cylinder and a welded component are included. The welded component is placed on the upper end of the hydraulic cylinder. The application also includes a base, a first fixed plate, a rotating rod, a turntable, a clamp, a first bolt, a connecting rod, a slider, a slide rail, a telescopic rod, a hydraulic cylinder, an auxiliary plate, a top beam, and a side plate. The first fixed plate is installed on the upper end of the base. The rotating rod is installed on the side end of the first fixed plate via a bearing. The turntable is installed on the side end of the rotating rod. The turntable has a groove on its side end. The hydraulic cylinder is nested in the groove on the side end of the turntable. The clamp has an opening at its lower end. The welded component is located in the opening at the lower end of the clamp. The clamp has a threaded hole on its side end. The first bolt is screwed into the threaded hole on the side end of the clamp. The connecting rod is installed on the upper end of the clamp. The slider is installed on the upper end of the connecting rod.
[0003] In the aforementioned patents and in the traditional ball valve welding production process, there is a common problem of low efficiency in manual flipping operations. After completing the welding on one side, manual intervention is required to flip the valve body in order to continue the welding work on the other side. This manual operation mode not only significantly increases the labor intensity of workers and extends the welding cycle of a single product, but also makes it difficult to guarantee the flipping accuracy, which may affect the consistency of welding quality. Summary of the Invention
[0004] The purpose of this invention is to provide a welding apparatus for valve production to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a welding device for valve production, including a base and a fixing mechanism and a connecting column disposed on one side of the base. A ball valve is placed on the base. The fixing mechanism includes a fixing column fixedly connected to one side of the base. A moving component is disposed above the side of the fixing column facing the base. A fixing component is disposed on the side of the moving component away from the fixing column. Pressing components are disposed above and below the fixing component. A pre-fixing component for pre-positioning the ball valve is disposed on the side of the fixing component away from the moving component.
[0006] The fixing component includes a connecting shell disposed on one side of the moving component. A sliding vertical groove is formed above the end of the connecting shell away from the moving component, and the sliding vertical groove penetrates the connecting shell. A T-shaped groove is formed at the end of the connecting shell away from the moving component. A telescopic electric cylinder is fixedly disposed inside the connecting shell on the side near the moving component. A sliding vertical plate is fixedly connected to the output end of the telescopic electric cylinder. The sliding vertical plate is slidably disposed inside the connecting shell. Rotating rods are rotatably connected to the upper and lower sides of the side of the sliding vertical plate away from the moving component.
[0007] Preferably, the pressing assembly includes an L-shaped rod rotatably connected to the other end of the rotating rod. The L-shaped rod is composed of a short vertical rod and a short horizontal rod. The short vertical rod on the L-shaped rod is slidably connected to a sliding vertical groove. The two sets of L-shaped rods are respectively arranged on the upper and lower sides of the connecting shell. One end of the short horizontal rod on the L-shaped rod is fixedly connected to a U-shaped rod. Multiple movable grooves are opened on the side of the two sets of U-shaped rods that are far apart from each other. A ball is movably arranged in the movable groove.
[0008] Preferably, the pre-fixing assembly includes a T-shaped block slidably connected in a T-shaped groove. A connecting rod is fixedly connected to one side of the T-shaped block. A limiting plate is fixedly connected to the end of the connecting rod away from the T-shaped block. The limiting plate has four circular holes, and an insert rod is slidably disposed in each of the four circular holes. A connecting plate is fixedly connected to the end of the four insert rods away from the limiting plate. A sleeve hole is provided on the connecting plate. A plurality of first springs are fixedly disposed between the limiting plate and the connecting plate. The connecting plate is sleeved on the outside of the connecting rod through the sleeve hole.
[0009] Preferably, the fixed column has a groove on the upper side facing the base, and a drive cylinder is arranged inside the groove. The moving component includes a sliding cross plate that is slidably arranged inside the groove. The sliding cross plate is fixedly arranged above the output end of the drive cylinder inside the groove. The sliding cross plate is fixedly connected to a fixed shell through a connecting plate. A servo motor is arranged inside the fixed shell. A connecting ring is fixedly connected to the end of the fixed shell away from the sliding cross plate. A fixed disk is rotatably connected inside the connecting ring. The fixed disk is fixedly connected to the output end of the servo motor inside the fixed shell. The other side of the fixed disk is fixedly connected to the connecting shell.
[0010] Preferably, the base is provided with a rotating assembly, and a connecting plate is provided below the rotating assembly. The connecting plate is rotatably disposed inside the upper part of the base. The rotating assembly includes a rotating plate fixedly disposed on the upper end of the connecting plate. A groove is formed at the center of the upper part of the rotating plate. A limiting ring is fixedly connected to the upper part of the groove. Two air passages are formed above the rotating plate and are connected to the lower part of the groove. A one-way air inlet valve and a one-way air outlet valve are respectively provided in the two air passages. Two connecting grooves are formed inside the lower part of the groove. Two sliding holes are formed above the rotating plate and are symmetrically distributed on both sides of the groove. A limiting groove is formed below each of the two sliding holes. A connecting groove is formed below the limiting groove and is connected to the lower part of the groove. A limiting slide plate is slidably disposed in the limiting groove. A sliding rod is fixedly connected to the upper end of the limiting slide plate and is slidably disposed in the sliding hole.
[0011] Preferably, a limiting disk is slidably disposed in the groove, and a sliding disk is fixedly connected to the upper end of the limiting disk. The diameter of the sliding disk is smaller than the through hole on the limiting ring. A guide post is fixedly connected to the lower part of the limiting disk. A vertical groove corresponding to the guide post is opened in the lower part of the groove. Multiple reset springs are fixedly disposed between the limiting disk and the groove. A driving assembly is disposed below the connecting disk. A motor protective shell is fixedly connected to the outer side of the base.
[0012] Preferably, the drive assembly includes a rotating disk fixedly connected to the lower end of the connecting disk, a drive motor is fixedly installed inside the motor protective shell, and a rotating disk is also fixedly installed at the output end of the drive motor. A rotating belt is provided on the outer side of both rotating disks.
[0013] Preferably, the connecting column has a sliding cavity on the side facing the base, a drive cylinder is provided in the sliding cavity, an electric telescopic rod is fixedly provided at the output end of the drive cylinder, and a welding assembly is provided at the output end of the electric telescopic rod.
[0014] Preferably, the ball valve is fixedly provided with circular flanges on the upper and lower sides, and the circular flanges are provided with multiple flange connection holes. A rectangular connecting plate is fixedly provided on one side of the ball valve, and the rectangular connecting plate is provided with limit holes.
[0015] Compared with the prior art, the technical solution of the present invention has the following advantages:
[0016] (1) The fixed mechanism is equipped with a moving component, a fixed component, a pressing component and a pre-fixing component. Through the synergistic effect of the pre-fixing component and the pressing component, the positioning accuracy and stability of the ball valve during the welding process are significantly improved. The insertion rod in the pre-fixing component is precisely matched with the limiting hole on the rectangular connecting plate of the ball valve, realizing the rapid pre-positioning of the initial position and avoiding the deviation caused by traditional manual alignment. When the telescopic electric cylinder pushes the sliding vertical plate, the rotating rod drives the L-shaped rod to move along the sliding vertical groove, so that the U-shaped rod forms a bidirectional clamping force on the circular flange, ensuring that the ball valve is completely fixed in three-dimensional space. In particular, the ball structure set on the U-shaped rod can effectively reduce frictional resistance when welding rotation, which not only maintains clamping stability but also avoids the risk of deformation caused by overpressure. In addition, the sliding rod in the rotating component is automatically inserted into the flange connection hole by air pressure drive to form a secondary mechanical lock. The double fixing mechanism enables the ball valve to maintain accuracy during rotation welding.
[0017] (2) The device achieves fully automatic multi-angle welding of ball valves through the linkage design of drive components, rotating components and moving components. The drive motor drives the connecting plate to rotate through the rotating belt, so that the ball valve can be adjusted to the welding position 360° without dead angle. The servo motor in the fixed shell drives the fixed plate to flip the ball valve. With the vertical lifting of the electric telescopic rod, the continuous welding of the flanges at both ends of the ball valve can be completed without manual intervention. When the sliding plate is under pressure, the lifting of the sliding rod is automatically adjusted, which simplifies the mechanical structure and improves the response speed. In addition, the cooperation between the reset spring and the limit ring ensures rapid reset after welding. When welding the ball valve, it is no longer necessary for workers to manually flip and fix the ball valve, which improves the overall welding efficiency. The shape of the pre-fixed component is divided into various types, which can adapt to various ball valve specifications and improve the compatibility of the equipment with valves. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the base structure of the present invention;
[0020] Figure 3 This is a schematic diagram of the fixing mechanism structure of the present invention;
[0021] Figure 4 This is a schematic diagram of the structure of the mobile component of the present invention;
[0022] Figure 5 This is a schematic diagram of the fixed component structure of the present invention;
[0023] Figure 6 This is a schematic diagram of the pressure-absorbing component structure of the present invention;
[0024] Figure 7 This is a schematic diagram of the pre-fixed component structure of the present invention;
[0025] Figure 8 This is a schematic diagram of the rotating component structure of the present invention;
[0026] Figure 9 This is a schematic diagram of the drive component structure of the present invention;
[0027] Figure 10 This is a schematic diagram of the ball valve structure of the present invention;
[0028] Figure 11 This is a schematic diagram of the second pre-fixed component structure of the present invention.
[0029] In the diagram: 1. Base; 11. Rotating assembly; 111. Rotating plate; 112. Groove; 113. Limiting ring; 114. Air passage; 115. Connecting groove; 116. Limiting slide groove; 117. Sliding hole; 118. Limiting slide plate; 119. Slide rod; 12. Connecting plate; 13. Sliding plate; 14. Limiting plate; 15. Guide post; 16. Return spring; 17. Drive assembly; 171. Rotating plate; 172. Drive motor; 173. Rotating belt; 18. Motor protective shell; 2. Fixing mechanism; 21. Fixing post; 211. Slide groove; 22. Moving assembly; 221. Sliding cross plate; 222. Fixing shell; 223. Connecting ring; 224. Fixing plate; 23. Fixing assembly 231. Connecting shell; 232. Sliding vertical groove; 233. T-shaped groove; 234. Telescopic electric cylinder; 235. Sliding vertical plate; 236. Rotating rod; 24. Pressing assembly; 241. L-shaped rod; 242. U-shaped rod; 243. Movable groove; 244. Sphere; 25. Pre-fixed assembly; 251. Connecting short rod; 252. T-shaped block; 253. Limiting plate; 254. Round hole; 255. First spring; 256. Insert rod; 257. Connecting plate; 258. Sleeve hole; 3. Connecting column; 31. Sliding cavity; 32. Electric telescopic rod; 33. Welding assembly; 4. Ball valve; 41. Circular flange; 411. Flange connection hole; 42. Rectangular connecting plate; 421. Limiting hole. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0031] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.
[0032] Example 1:
[0033] like Figures 1 to 10 As shown, the present invention provides a welding device for valve production, including a base 1 and a fixing mechanism 2 and a connecting column 3 disposed on one side of the base 1. A ball valve 4 is placed on the base 1. The fixing mechanism 2 includes a fixing column 21 fixedly connected to one side of the base 1. A moving component 22 is disposed above the side of the fixing column 21 facing the base 1. A fixing component 23 is disposed on the side of the moving component 22 away from the fixing column 21. Pressing components 24 are disposed above and below the fixing component 23 respectively. A pre-fixing component 25 for pre-positioning the ball valve 4 is disposed on the side of the fixing component 23 away from the moving component 22.
[0034] The fixed component 23 includes a connecting shell 231 disposed on one side of the moving component 22. A sliding vertical groove 232 is provided above the end of the connecting shell 231 away from the moving component 22. The sliding vertical groove 232 penetrates the connecting shell 231. A T-shaped groove 233 is provided at the end of the connecting shell 231 away from the moving component 22. A telescopic electric cylinder 234 is fixedly disposed inside the connecting shell 231 on the side close to the moving component 22. A sliding vertical plate 235 is fixedly connected to the output end of the telescopic electric cylinder 234. The sliding vertical plate 235 is slidably disposed inside the connecting shell 231. Rotating rods 236 are rotatably connected to the upper and lower sides of the side of the sliding vertical plate 235 away from the moving component 22, respectively.
[0035] The pressing component 24 includes an L-shaped rod 241 rotatably connected to the other end of a rotating rod 236. The L-shaped rod 241 is composed of a short vertical rod and a short horizontal rod. The short vertical rod on the L-shaped rod 241 is slidably connected to the sliding vertical groove 232. The two sets of L-shaped rods 241 are respectively arranged on the upper and lower sides of the connecting shell 231. One end of the short horizontal rod on the L-shaped rod 241 is fixedly connected to a U-shaped rod 242. Multiple movable grooves 243 are opened on the side of the two sets of U-shaped rods 242 that are far apart from each other. A ball 244 is movably arranged in the movable groove 243.
[0036] The pre-fixed assembly 25 includes a T-shaped block 252 slidably connected in a T-shaped groove 233. A connecting rod 251 is fixedly connected to one side of the T-shaped block 252. A limiting plate 253 is fixedly connected to the end of the connecting rod 251 away from the T-shaped block 252. The limiting plate 253 is rectangular and has four circular holes 254. Insert rods 256 are slidably disposed in the four circular holes 254 respectively. A connecting plate 257 is fixedly connected to the end of the four insert rods 256 away from the limiting plate 253. A sleeve hole 258 is provided on the connecting plate 257. A plurality of first springs 255 are fixedly disposed between the limiting plate 253 and the connecting plate 257. The connecting plate 257 is sleeved on the outside of the connecting rod 251 through the sleeve hole 258.
[0037] A sliding groove 211 is provided on the upper side of the fixed column 21 facing the base 1. A drive cylinder is provided inside the lower part of the sliding groove 211. The moving component 22 includes a sliding horizontal plate 221 that is slidably disposed inside the sliding groove 211. The sliding horizontal plate 221 is fixedly disposed above the output end of the drive cylinder inside the sliding groove 211. The sliding horizontal plate 221 is fixedly connected to a fixed shell 222 through a connecting plate. A servo motor is disposed inside the fixed shell 222. A connecting ring 223 is fixedly connected to one end of the fixed shell 222 away from the sliding horizontal plate 221. A fixed disk 224 is rotatably connected inside the connecting ring 223. The fixed disk 224 is fixedly connected to the output end of the servo motor inside the fixed shell 222. The other side of the fixed disk 224 is fixedly connected to the connecting shell 231.
[0038] A rotating assembly 11 is provided on the base 1, and a connecting plate 12 is provided below the rotating assembly 11. The connecting plate 12 is rotatably disposed inside the upper part of the base 1. The rotating assembly 11 includes a rotating plate 111 fixedly disposed on the upper end of the connecting plate 12. A groove 112 is formed at the center of the upper part of the rotating plate 111. A limit ring 113 is fixedly connected to the upper part of the groove 112. Two air passages 114 are formed above the rotating plate 111. The two air passages 114 are connected to the lower part of the groove 112. A one-way air inlet valve and a one-way air outlet valve are respectively provided in the two air passages 114. When the air pressure in the groove 112 is too high, part of the air is discharged from the air passage 114 with the one-way air outlet valve. When the air pressure inside the groove 112 is too low, some gas is drawn in through the air passage 114 with a one-way air intake valve. Two connecting grooves 115 are opened at the bottom inside the groove 112, and two sliding holes 117 are opened above the rotating plate 111. The two sliding holes 117 are symmetrically distributed on both sides of the groove 112. A limiting groove 116 is opened below the two sliding holes 117 respectively. A connecting groove 115 is opened below the limiting groove 116. The connecting groove 115 is connected to the bottom inside the groove 112. A limiting slide plate 118 is slidably arranged in the limiting groove 116. A slide rod 119 is fixedly connected to the upper end of the limiting slide plate 118. The slide rod 119 is slidably arranged in the sliding hole 117.
[0039] A limiting disk 14 is slidably disposed in the groove 112. A sliding disk 13 is fixedly connected to the upper end of the limiting disk 14. The diameter of the sliding disk 13 is smaller than the through hole on the limiting ring 113. A guide post 15 is fixedly connected to the lower part of the limiting disk 14. A vertical groove corresponding to the guide post 15 is opened in the lower part of the groove 112. Multiple reset springs 16 are fixedly disposed between the limiting disk 14 and the groove 112. A drive assembly 17 is disposed below the connecting disk 12. A motor protective shell 18 is fixedly connected to the outer side of the base 1.
[0040] The drive assembly 17 includes a rotating disk 171 fixedly connected to the lower end of the connecting disk 12. A drive motor 172 is fixedly installed inside the motor protective shell 18. A rotating disk 171 is also fixedly installed at the output end of the drive motor 172. A rotating belt 173 is provided on the outer side of the two rotating disks 171.
[0041] A sliding cavity 31 is provided above the side of the connecting column 3 facing the base 1. A drive electric cylinder is provided inside the sliding cavity 31. An electric telescopic rod 32 is fixedly provided at the output end of the drive electric cylinder. A welding assembly 33 is provided at the output end of the electric telescopic rod 32.
[0042] The ball valve 4 is fixedly provided with a circular flange 41 on the upper and lower sides respectively. The circular flange 41 has multiple flange connection holes 411. A rectangular connecting plate 42 is fixedly provided on one side of the ball valve 4. The rectangular connecting plate 42 has multiple limiting holes 421. The diameter of the limiting holes 421 is larger than the diameter of the insertion rod 256.
[0043] The working principle of this invention is as follows: In use, the T-shaped block 252 is inserted into the T-shaped groove 233 and pushed to the bottom of the T-shaped groove 233. At this time, the rectangular connecting plate 42 on the ball valve 4 is aligned with the limiting plate 253, and the limiting hole 421 is aligned with the insertion rod 256. After installation, the limiting plate 253 and the insertion rod 256 limit the position of the ball valve 4, allowing the two flange connecting holes 411 on the circular flange 41 and the slide rod 119 to connect. After the ball valve 4 is installed, continue pushing the ball valve 4 to prevent it from falling off. The output end of the telescopic electric cylinder 234 extends, driving the sliding vertical plate 235 to slide within the connecting shell 231. The sliding vertical plate 235 pushes one end of the rotating rod 236 to move, and the other end of the rotating rod 236 pushes the short vertical rod on the L-shaped rod 241 to slide within the sliding vertical groove 232. The rod 241 slides out of the sliding vertical groove 232. The L-shaped rod 241 drives the U-shaped rod 242 to approach the circular flanges 41 at both ends of the ball valve 4. Finally, the upper U-shaped rod 242 is in contact with the lower surface of the upper circular flange 41, and the lower U-shaped rod 242 is in contact with the upper surface of the lower circular flange 41. The two U-shaped rods 242 press against the two circular flanges 41 to fix the ball valve 4. At this time, the ball valve 4 is no longer pushed. The connecting plate 257 is pulled away from the limiting plate 253. The connecting plate 257 drives the insertion rod 256 to slide in the circular hole 254 and the limiting hole 421. The insertion rod 256 slides out from the limiting hole 421. Then the connecting short rod 251 is pulled upward to make the T-shaped block 252 slide out from the T-shaped groove 233. The pre-fixed component 25 is removed from one side of the connecting shell 231.
[0044] After the pre-fixed component 25 is removed, the drive cylinder in the fixed column 21 drives the sliding horizontal plate 221 to move downward. The sliding horizontal plate 221 drives the ball valve 4 to move downward through the moving component 22, the fixed component 23 and the pressing component 24. The ball valve 4 squeezes the sliding plate 13. The sliding plate 13 is not squeezed into the groove 112. The sliding plate 13 drives the limiting plate 14 to slide downward in the groove 112. The limiting plate 14 squeezes the gas in the groove 112 into the limiting slide groove 116 through the connecting groove 115. The gas in the limiting slide groove 116 pushes the limiting slide plate 118 to move upward. The limiting slide plate 118 drives the slide rod 119 to move upward. The slide rod 119 protrudes from the sliding hole 117 and is inserted into the two flange connection holes 411 on the lower circular flange 41, fixing the ball valve 4 above the rotating plate 111.
[0045] The output end of the electric telescopic rod 32 drives the welding assembly 33 to move directly above the ball valve 4. The output end of the drive cylinder in the control sliding chamber 31 drives the electric telescopic rod 32 downward, so that the welding assembly 33 contacts the welded joint of the ball valve 4. The output end of the telescopic cylinder 234 drives the sliding vertical plate 235 to move slightly towards the pressing assembly 24, so that the pressing force of the U-shaped rod 242 on the circular flange 41 is reduced. The output end of the drive motor 172 drives the connecting plate 12 to rotate through the rotating disk 171 and the rotating belt 173. The connecting plate 12 rotates. Plate 111 moves, and rotating plate 111 drives ball valve 4 to rotate via slide rod 119. Welding assembly 33 remains stationary, relying on the rotation of ball valve 4 itself to perform welding inside ball valve 4. At this time, ball 244 contacts circular flange 41 to prevent excessive contact force between U-shaped rod 242 and circular flange 41, which would affect the rotation of ball valve 4. After one end of ball valve 4 is welded, the output end of the drive electric cylinder in sliding cavity 31 outputs, driving welding assembly 33 away from ball valve 4. Telescopic electric cylinder 234 drives the output end to drive sliding vertical plate 235 away from pressing assembly 24. The movement of the U-shaped rod 242 causes it to fit tightly against the circular flange 41. The output end of the drive cylinder in the slide groove 211 drives the sliding plate 221 to move upward, causing the moving component 22, the fixing component 23, and the pressing component 24 to lift the ball valve 4 a certain distance. After the ball valve 4 rises, the return spring 16 pushes the limit plate 14 and the sliding plate 13 to reset. The gas in the limit slide groove 116 and the connecting groove 115 is drawn into the groove 112, and the slide rod 119 retracts into the slide hole 117. Subsequently, the servo motor in the fixed housing 222 drives the fixed plate 22 4. When the fixed plate 224 rotates, it drives the ball valve 4 to rotate 180 degrees through the fixed component 23 and the pressing component 24, so that the positions of the two circular flanges 41 are interchanged. Then, the output end of the drive cylinder in the slide groove 211 drives the sliding plate 221 to move downward, so that the ball valve 4 falls on the rotating plate 111. The slide rod 119 is inserted into the flange connection hole 411 again, and the output end of the drive electric cylinder in the sliding cavity 31 retracts, driving the welding component 33 to approach the ball valve 4 to continue welding. The continuous welding of the flanges at both ends of the ball valve can be completed without manual intervention, improving welding efficiency.
[0046] Example 2:
[0047] like Figure 11As shown, the pre-fixed assembly 25 includes a T-shaped block 252 slidably connected in a T-shaped groove 233. A connecting rod 251 is fixedly connected to one side of the T-shaped block 252. A limiting plate 253 is fixedly connected to the end of the connecting rod 251 away from the T-shaped block 252. The limiting plate 253 is circular and has four circular holes 254. Insert rods 256 are slidably disposed in the four circular holes 254 respectively. A connecting plate 257 is fixedly connected to the end of the four insert rods 256 away from the limiting plate 253. A sleeve hole 258 is provided on the connecting plate 257. A plurality of first springs 255 are fixedly disposed between the limiting plate 253 and the connecting plate 257. The connecting plate 257 is sleeved on the outside of the connecting rod 251 through the sleeve hole 258.
[0048] In this embodiment, the shape of the pre-fixing component 25 matches the shape of the rectangular connecting plate 42. When it is necessary to weld another type of ball valve 4, the pre-fixing component 25 with the shape corresponding to the rectangular connecting plate 42 on the ball valve 4 is replaced, so that this device can be used for more types of ball valve 4, eliminating the need for multiple devices to match different types of ball valve 4 and reducing the cost of purchasing equipment.
[0049] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.
Claims
1. A welding apparatus for valve production, comprising a base (1) and a fixing mechanism (2) and a connecting column (3) disposed on one side of the base (1), wherein a ball valve (4) is placed on the base (1), characterized in that: The fixing mechanism (2) includes a fixing column (21) fixedly connected to one side of the base (1). A moving component (22) is provided above the side of the fixing column (21) facing the base (1). A fixing component (23) is provided on the side of the moving component (22) away from the fixing column (21). A pressing component (24) is provided on the upper and lower sides of the fixing component (23). A pre-fixing component (25) for pre-positioning the ball valve (4) is provided on the side of the fixing component (23) away from the moving component (22). The fixed component (23) includes a connecting shell (231) disposed on one side of the moving component (22). A sliding vertical groove (232) is provided above the end of the connecting shell (231) away from the moving component (22). The sliding vertical groove (232) penetrates the connecting shell (231). A T-shaped groove (233) is provided at the end of the connecting shell (231) away from the moving component (22). A telescopic electric cylinder (234) is fixedly disposed inside the connecting shell (231) on the side close to the moving component (22). A sliding vertical plate (235) is fixedly connected to the output end of the telescopic electric cylinder (234). The sliding vertical plate (235) is slidably disposed inside the connecting shell (231). Rotating rods (236) are rotatably connected to the upper and lower sides of the side of the sliding vertical plate (235) away from the moving component (22). A rotating assembly (11) is provided on the base (1), and a connecting plate (12) is provided below the rotating assembly (11). The connecting plate (12) is rotatably disposed above the inside of the base (1). The rotating assembly (11) includes a rotating plate (111) fixedly disposed on the upper end of the connecting plate (12). A groove (112) is provided at the center of the upper part of the rotating plate (111). A limit ring (113) is fixedly connected to the upper part of the groove (112). Two air passages (114) are provided above the rotating plate (111). The two air passages (114) are connected to the lower part of the groove (112). A one-way air inlet valve and a one-way air outlet valve are respectively provided in the two air passages (114). The valve has two connecting grooves (115) at the bottom inside the groove (112), and two sliding holes (117) at the top of the rotating plate (111). The two sliding holes (117) are symmetrically distributed on both sides of the groove (112). A limiting groove (116) is provided below the two sliding holes (117). A connecting groove (115) is provided below the limiting groove (116). The connecting groove (115) is connected to the bottom inside the groove (112). A limiting slide plate (118) is slidably arranged in the limiting groove (116). A slide rod (119) is fixedly connected to the upper end of the limiting slide plate (118). The slide rod (119) is slidably arranged in the sliding hole (117).
2. The welding apparatus for valve production according to claim 1, characterized in that: The pressing component (24) includes an L-shaped rod (241) rotatably connected to the other end of a rotating rod (236). The L-shaped rod (241) is composed of a short vertical rod and a short horizontal rod. The short vertical rod on the L-shaped rod (241) is slidably connected to a sliding vertical groove (232). Two sets of the L-shaped rods (241) are respectively arranged on the upper and lower sides of the connecting shell (231). One end of the short horizontal rod on the L-shaped rod (241) is fixedly connected to a U-shaped rod (242). Multiple movable grooves (243) are opened on the side of the two sets of U-shaped rods (242) that are far apart from each other. A ball (244) is movably arranged in the movable groove (243).
3. The welding apparatus for valve production according to claim 1, characterized in that: The pre-fixed component (25) includes a T-shaped block (252) slidably connected in a T-shaped groove (233). A connecting rod (251) is fixedly connected to one side of the T-shaped block (252). A limiting plate (253) is fixedly connected to the end of the connecting rod (251) away from the T-shaped block (252). The limiting plate (253) has four round holes (254). Insert rods (256) are slidably arranged in the four round holes (254). A connecting plate (257) is fixedly connected to the end of the four insert rods (256) away from the limiting plate (253). A sleeve hole (258) is opened on the connecting plate (257). A plurality of first springs (255) are fixedly arranged between the limiting plate (253) and the connecting plate (257). The connecting plate (257) is sleeved on the outside of the connecting rod (251) through the sleeve hole (258).
4. The welding apparatus for valve production according to claim 1, characterized in that: The fixed column (21) has a sliding groove (211) on the side facing the base (1) and a drive cylinder is provided inside the lower part of the sliding groove (211). The moving component (22) includes a sliding cross plate (221) that is slidably disposed inside the sliding groove (211). The sliding cross plate (221) is fixedly disposed above the output end of the drive cylinder inside the sliding groove (211). The sliding cross plate (221) is fixedly connected to a fixed shell (222) by a connecting plate. A drive motor is disposed inside the fixed shell (222). A connecting ring (223) is fixedly connected to one end of the fixed shell (222) away from the sliding cross plate (221). A fixed disk (224) is rotatably connected inside the connecting ring (223). The fixed disk (224) is fixedly connected to the output end of the drive motor inside the fixed shell (222). The other side of the fixed disk (224) is fixedly connected to the connecting shell (231).
5. The welding apparatus for valve production according to claim 4, characterized in that: A limiting disk (14) is slidably disposed in the groove (112). A sliding disk (13) is fixedly connected to the upper end of the limiting disk (14). The diameter of the sliding disk (13) is smaller than the through hole on the limiting ring (113). A guide post (15) is fixedly connected below the limiting disk (14). A vertical groove corresponding to the guide post (15) is opened in the lower part of the groove (112). Multiple reset springs (16) are fixedly disposed between the limiting disk (14) and the groove (112). A drive assembly (17) is disposed below the connecting disk (12). A motor protective shell (18) is fixedly connected to the outer side of the base (1).
6. The welding apparatus for valve production according to claim 5, characterized in that: The drive assembly (17) includes a rotating disk (171) fixedly connected to the lower end of the connecting disk (12). A drive motor (172) is fixedly installed inside the motor protective shell (18). A rotating disk (171) is also fixedly installed at the output end of the drive motor (172). A rotating belt (173) is provided on the outer side of the two rotating disks (171).
7. The welding apparatus for valve production according to claim 1, characterized in that: The connecting column (3) has a sliding cavity (31) above the side facing the base (1). A drive electric cylinder is provided in the sliding cavity (31). An electric telescopic rod (32) is fixedly provided at the output end of the drive electric cylinder. A welding assembly (33) is provided at the output end of the electric telescopic rod (32).
8. The welding apparatus for valve production according to claim 1, characterized in that: The ball valve (4) is fixedly provided with a circular flange (41) on the upper and lower sides respectively. The circular flange (41) is provided with a plurality of flange connection holes (411). A rectangular connecting plate (42) is fixedly provided on one side of the ball valve (4). A limit hole (421) is provided on the rectangular connecting plate (42).