Auxiliary combination device for coaxial welding of ball valve component

Abstract

The utility model discloses a ball valve part coaxial welding auxiliary combination device which comprises a ball valve body, a first positioning cylinder, a second positioning cylinder, a third positioning cylinder, an assembling component, a hoisting component, a welding component and a disassembling and assembling component. According to the automatic assembling and welding device for the ball valve, the efficient and accurate assembling and welding process of ball valve parts is ensured, highly automatic operation of the whole system is achieved, manual participation is reduced, the production efficiency is improved, and the production cost is reduced. By means of the technical scheme, the production efficiency is improved, meanwhile, the quality guarantee of products is improved, it is guaranteed that the parts are kept coaxial all the time in the welding process, the welding quality is remarkably improved, the welding defect caused by deviation of the parts is avoided through the precise positioning function, and the sealing performance and durability of the ball valve are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve production, in particular to a coaxial welding auxiliary assembly device for ball valve components. Background Art

[0002] A ball valve is usually composed of components such as a valve body, a valve ball, a valve stem, and a valve seat. The valve body serves as the outer shell of the ball valve, providing support and protection for the internal components. The valve body of a ball valve is generally composed of three parts, namely the left and right valve bodies and the middle valve body. The valve ball, valve stem and other devices are installed in the middle valve body, while the left and right valve bodies are connected to the pipeline through flanges. In the production process of ball valve components, welding of the valve body is a key process, and the quality of welding directly affects the performance and service life of the ball valve.

[0003] However, when welding the ball valve body, the existing welding device simply places the valve body directly between two positioning parts. The two positioning parts clamp the valve body and then weld the joints for welding. This method often results in poor welding accuracy and stability of the ball valve body, which easily leads to substandard product quality and increased production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a coaxial welding auxiliary assembly device for ball valve components to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a coaxial welding auxiliary assembly device for ball valve components, comprising a ball valve body, a positioning cylinder 1, a positioning cylinder 2, a positioning cylinder 3, an assembling component, a hoisting component, a welding component and a disassembling component, wherein the ball valve body is assembled on the assembling component, the hoisting component moves the assembled ball valve body to the welding component for welding, and the welded ball valve body is disassembled on the disassembling component, characterized in that: the hoisting component comprises a crane, a chain clamped with a hook on the crane, a positioning hook clamped at the bottom end of the chain, a motor 1 whose output shaft is fixedly connected to the crane chassis, and a motor installed at the lower end of the motor. A machine base and a moving mechanism 1 arranged at the lower end of the machine base, the crane is also provided with a control mechanism, the welding component includes a welding table, a fixed plate arranged on the welding table, a rotating shaft 1 rotatably connected to the fixed plate, a fixed block fixed on the two rotating shafts 1 close to one end, a motor 2 whose output shaft is fixedly connected to one side of one of the rotating shafts 1, a laser welding head of a laser welding machine arranged above the welding table and a moving mechanism 2, the motor 2 is installed on the fixed plate on the same side, the two fixed blocks are respectively matched with the positioning cylinder 1 and the positioning cylinder 2, the fixed plate is slidably arranged on the bottom wall of the welding table through a driving mechanism, and the moving mechanism 2 is used to drive the laser welding head to move.

[0006] In a preferred embodiment: the moving mechanism 1 includes a motor 3 installed at the lower end of the machine base and a moving wheel fixedly connected to the output shafts at both ends of the motor 3, the control mechanism includes an elastic tube fixedly installed at the lower end of the crane wall and a control box fixedly arranged at the lower end of the elastic tube, the control box is electrically connected to the motor 4 provided on the crane through wire 1, the control box is electrically connected to the motor 1 through wire 2, and the control box is electrically connected to the motor 3 through wire 3, the lower ends of wire 1, wire 2 and wire 3 all pass through the elastic tube and are arranged in the control box, and the middle parts of wire 1, wire 2 and wire 3 are all stacked in the elastic tube, in a retractable state.

[0007] In a preferred embodiment: the moving mechanism 2 includes a cylinder 1 fixedly mounted on the upper end wall of the welding table, a slide 1 fixedly connected to the output shaft of the cylinder 1, a cylinder 2 mounted on the slide 1, a slide 2 fixedly connected to the output shaft of the lower end of the cylinder 2, a cylinder 3 mounted on the slide 2 and a drive plate fixedly connected to the output shaft of the cylinder 3, one end of the slide 1 and the slide 2 are both slidably connected to the wall of the welding table, and the laser welding head is mounted on the drive plate.

[0008] In a preferred embodiment: the driving mechanism includes a motor five installed on the inner wall of the bottom end of the welding table, a threaded rod fixedly connected to the output shafts at both ends of the motor five, a threaded plate threadedly connected to the outer wall of the threaded rod, and a limit block fixedly connected to the upper end of the threaded plate. A limit opening one is provided on the wall of the welding table, the limit block is slidably arranged in the limit opening one, and the upper end of the limit block is fixedly connected to the fixed block, and the threaded plate is slidably connected to the inner wall of the welding table.

[0009] In a preferred embodiment: one end of the positioning cylinder one is clamped to the positioning cylinder two, one end of the positioning cylinder two is clamped to the positioning cylinder three, the ball valve body is sleeved on the outer wall of the positioning cylinder two, the positioning cylinder one and the positioning cylinder three have the same specifications and shapes, the upper ends of the positioning cylinder one and the positioning cylinder three are welded with a positioning frame, and the upper end of the positioning frame is welded with a positioning column.

[0010] In a preferred embodiment: the assembly component includes a support frame 1, a hook 2, a positioning block, a base 1, a ball, a cavity, a limit plate 1 and a spring 1. The positioning block is arranged on one side of the upper end of the hook 2 and is integrally formed with the hook 2. The hook 2 is clamped with the positioning frame. The base 1 is placed on the lower end of the bracket. The upper end of the base 1 is movably provided with a plurality of equally distributed balls. The base 1 is provided with a plurality of cavities corresponding to the positions of the balls. The lower end of the ball is rotatably connected to the limit plate 1. The limit plate 1 is slidably connected to the inner wall of the cavity. A spring 1 is provided between the lower end of the limit plate and the bottom wall of the cavity.

[0011] In a preferred embodiment: the unloading component includes a base 2, a support frame 2, two symmetrically distributed support seats, a mounting plate fixedly mounted on the bottom end of the support seat, a cylinder 4 mounted on the lower end of the mounting plate, a limit plate 2 slidably connected to the bottom end wall of the base 2, and a plurality of equidistantly distributed universal wheels mounted on the bottom end of the limit plate 2, one end of the base 2 is fixedly connected to the support frame 2, the lower end of the cylinder 4 is mounted on the limit plate 2, and an end surface of the upper end of the support seat close to the ball valve body is fixedly provided with anti-slip rubber, the upper end of the base 2 is provided with a hook 1, the hook 1 is engaged with the positioning frame, a protrusion, a touch plate, a contact switch and a controller are provided in the support frame 2, the upper end of the protrusion is provided outside the support frame 2, the lower end of the protrusion is fixedly connected to the touch plate, the touch plate is slidably connected to the inner wall of the support frame 2, a contact switch is provided on the inner wall of the support frame 2, and the contact switch is electrically connected to the controller through a wire 4, the controller is installed at one end of the base 2, and the controller is signal-connected to the cylinder 4.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] The utility model is provided with positioning cylinder 1, positioning cylinder 2, positioning cylinder 3, assembling components, hoisting components, welding components and disassembling components. First, the ball valve body is preliminarily assembled with the assembly components. The operator first inserts the right side of the positioning cylinder 1 into the left side of the positioning cylinder 2, and then clamps the positioning frame on the hook 2 to complete the fixing work of the positioning cylinder 1 and the positioning cylinder 2. Then, the base is placed at the lower end of the support frame, and the ball valve body is sleeved on the positioning cylinder 2. Finally, the positioning cylinder 3 is inserted into the positioning cylinder 2. Under the limiting action of the positioning cylinder 1 and the positioning cylinder 3, the placement of the ball valve body is completed, ensuring that the coaxiality is accurate and the convenience of installing the ball valve body is increased. After the assembly is completed and confirmed to be correct through inspection, the hoisting components are used to transfer the ball valve body to the welding station. At this time, the two positioning hooks are respectively hooked on the two positioning columns. Then the crane is started through the control mechanism, and the hook 1 and the chain are connected. Connect and lift the positioning hook, and then suspend the ball valve body and move it to the welding component. Motor five starts to rotate forward, thereby adjusting the position between the two fixed blocks until the two positioning blocks are respectively inserted into the positioning cylinder one and the positioning cylinder two, completing the positioning of the ball valve body. After that, the laser welding head on the welding component is driven by the moving mechanism two to move flexibly in space, thereby accurately welding the ball valve components coaxially into place. After welding is completed, the finished product is unloaded using the unloading component. This device ensures efficient and precise assembly and welding process of the ball valve components, realizes highly automated operation of the entire system, reduces manual participation, improves production efficiency, and also improves product quality assurance, ensuring that they always maintain coaxiality during the welding process, thereby significantly improving welding quality, and this precise positioning function avoids welding defects caused by component offset, greatly enhancing the sealing and durability of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of the auxiliary combination device of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the hoisting component of the utility model;

[0017] Figure 3 This is a schematic diagram of the side cross-sectional structure of the welding component of the present invention;

[0018] Figure 4 This is a schematic diagram of the overall structure of the positioning tooling of the utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the entire positioning tool of the present invention;

[0020] Figure 6 This utility model Figure 5 A schematic diagram of the enlarged structure at point A;

[0021] Figure 7 This is a schematic diagram of the connection structure of the positioning tube 1, the positioning tube 2 and the positioning tube 3 of the utility model;

[0022] Figure 8 This is a structural diagram of a positioning cylinder of the present utility model;

[0023] Figure 9 This is a schematic diagram of the internal cross-sectional structure of the positioning tool base of the utility model;

[0024] Figure 10 This is a schematic diagram of the overall structure of the unloading and loading tooling of the utility model;

[0025] Figure 11 This is a schematic cross-sectional view of the unloading tooling structure of the utility model;

[0026] Figure 12 It is a schematic diagram of the main sectional structure of the unloading tool of the utility model.

[0027] In the figure: 1. Ball valve body; 2. Positioning cylinder 1; 3. Positioning cylinder 2; 4. Positioning cylinder 3; 5. Hoist; 6. Chain; 7. Positioning hook; 8. Motor 1; 9. Machine base; 10. Welding table; 11. Fixing plate; 12. Rotating shaft 1; 13. Fixing block; 14. Motor 2; 15. Laser welding head; 16. Motor 3; 17. Moving wheel; 18. Elastic tube; 19. Control box; 20. Motor 4; 21. Cylinder 1; 22. Cylinder 2; 23. Slide plate 2; 24. Cylinder 3; 25. Drive plate ; 26. Motor five; 27. Threaded rod; 28. Threaded plate; 29. ​​Limiting mouth one; 30. Positioning frame; 31. Positioning column; 32. Support frame one; 33. Hook two; 34. Positioning block; 35. Base one; 36. Ball; 37. Cavity; 38. Limiting plate one; 39. Base two; 40. Support frame two; 41. Support seat; 42. Mounting plate; 43. Cylinder four; 44. Limiting plate two; 45. Hook one; 46. Bump; 47. Touch plate; 48. Contact switch; 49. Controller. DETAILED DESCRIPTION

[0028] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-12 The utility model provides a technical solution: a coaxial welding auxiliary assembly device for ball valve components, including a ball valve body 1, a positioning cylinder 1 2, a positioning cylinder 2 3, a positioning cylinder 3 4, an assembly component, a hoisting component, a welding component and a disassembly component. The ball valve body 1 is assembled on the assembly component, and the hoisting component moves the assembled ball valve body 1 to the welding component for welding. The welded ball valve body 1 is disassembled on the disassembly component. After the ball valve body 1 is assembled on the assembly component, the hoisting component lifts the ball valve body 1 and moves it to the assembly component. On the welding component, after welding is completed, the ball valve body 1 is placed on the unloading component to facilitate disassembly. It is characterized in that: the lifting component includes a crane 5, a chain 6 connected to the hook on the crane 5, a positioning hook 7 connected to the bottom end of the chain 6, a motor 8 whose output shaft is fixedly connected to the chassis of the crane 5, a base 9 installed at the lower end of the motor 8, and a moving mechanism 1 provided at the lower end of the base 9. The crane 5 is also provided with a control mechanism. The lifting process is completed by the crane 5, chain 6, positioning hook 7, motor 8, base 9 and moving mechanism 1;

[0030] The welding component includes a welding table 10, a fixed plate 11 arranged on the welding table 10, a rotating shaft 12 rotatably connected to the fixed plate 11, a fixed block 13 fixed on the two rotating shafts 12 close to one end, a motor 2 14 whose output shaft is fixedly connected to one side of one of the rotating shafts 12, a laser welding head 15 of a laser welding machine arranged above the welding table 10, and a moving mechanism 2. The motor 2 14 is installed on the fixed plate 11 on the same side. The two fixed blocks 13 are respectively matched with the positioning cylinder 1 2 and the positioning cylinder 2 3. The fixed plate 11 is slidably arranged on the bottom end wall of the welding table 10 through a driving mechanism. The installation of the fixed plates 11 on both sides ensures a stable working environment. The moving mechanism 2 is used to drive the laser welding head 15 to move.

[0031] The moving mechanism 1 includes a motor 3 16 mounted on the lower end of the base 9 and a moving wheel 17 fixedly connected to the output shafts at both ends of the motor 3 16;

[0032] The control mechanism includes an elastic tube 18 fixedly mounted on the lower end of the wall of the crane 5 and a control box 19 fixedly mounted on the lower end of the elastic tube 18. The control box 19 is electrically connected to the motor 4 20 provided on the crane 5 through a first wire, the control box 19 is electrically connected to the motor 1 8 through a second wire, and the control box 19 is electrically connected to the motor 3 16 through a third wire. The lower ends of the first, second and third wires all pass through the elastic tube 18 and are arranged in the control box 19, and the middle parts of the first, second and third wires are all stacked in the elastic tube 18 in a retractable state. A control box 19 with a conductive function is provided in the crane 5 to control the movement of the crane 5. The control box 19 is electrically connected to the motor 4 20 in the crane 5 through the first, second and third wires, respectively, and is also connected to the motor 1 8 and the motor 3 16 that supplies the power to the moving wheel 17. Most of the above three wires are placed in a pipe that allows for telescopic adjustment of the position, namely, the elastic tube 18.

[0033] During specific use, the vertical button on the control box 19 controls the motor four 20 on the crane 5 to rotate forward when the upward arrow is pressed, and the hook on the crane 5 moves upward, driving the positioning hook 7 to move upward. The same is true for pressing the downward button, that is, the positioning hook 7 is lowered. Pressing one of the circular buttons makes the motor one 8 rotate forward, and pressing the other button makes the motor one 8 reverse, thereby driving the motor to rotate, and pressing the forward arrow on the horizontal arrow makes the motor three 16 rotate forward and the moving wheel 17 move forward, and pressing the backward arrow makes the motor three 16 reverse and the moving wheel 17 move backward, thereby facilitating the crane 5 to drive the ball valve body 1 to move in any direction.

[0034] The movable mechanism 2 includes a cylinder 1 21 fixedly mounted on the upper end wall of the welding table 10, a slide 1 fixedly connected to the output shaft of the cylinder 1 21, a cylinder 2 22 mounted on the slide 1, a slide 2 23 fixedly connected to the output shaft of the lower end of the cylinder 2 22, a cylinder 3 24 mounted on the slide 2 23, and a drive plate 25 fixedly connected to the output shaft of the cylinder 3 24. One end of the slide 1 and the slide 2 23 are both slidably connected to the wall of the welding table 10. The laser welding head 15 is mounted on the drive plate 25. The movable mechanism 2 cooperates with the setting of the laser welding head 15 to push the laser welding head 15 to perform necessary position adjustments to facilitate precise positioning and movement during operation.

[0035] The driving mechanism includes a motor 5 26 installed on the inner wall of the bottom end of the welding table 10, a threaded rod 27 fixedly connected to the output shafts at both ends of the motor 5 26, a threaded plate 28 threadedly connected to the outer wall of the threaded rod 27, and a limit block fixedly connected to the upper end of the threaded plate 28. A limit opening 29 is provided on the wall of the welding table 10, and the limit block is slidably arranged in the limit opening 29, and the upper end of the limit block is fixedly connected to the fixed block 13. The threaded plate 28 is slidably connected to the inner wall of the welding table 10, and the working surface of the welding table 10 is provided with a limit opening 29 used in conjunction with the limit block to ensure smooth movement.

[0036] One end of the positioning cylinder 1 2 is clamped to the positioning cylinder 2 3 , and one end of the positioning cylinder 2 3 is clamped to the positioning cylinder 3 4 . The ball valve body 1 is sleeved on the outer wall of the positioning cylinder 2 3 . The specifications and shapes of the positioning cylinder 1 2 and the positioning cylinder 3 4 are consistent. A positioning frame 30 is welded to the upper end of the positioning cylinder 1 2 and the positioning cylinder 3 4 , and a positioning column 31 is welded to the upper end of the positioning frame 30 .

[0037] The assembly components include a support frame 32, a hook 33, a positioning block 34, a base 35, a ball 36, a cavity 37, a limit plate 38 and a spring 1. The positioning block 34 is arranged on one side of the upper end of the hook 33 and is integrally formed with the hook 33. The hook 33 is snapped with the positioning frame 30. The base 35 is placed on the lower end of the bracket. The upper end of the base 35 is movably provided with a plurality of equally distributed balls 36. The base 35 is provided with a plurality of cavities 37 corresponding to the positions of the balls 36. The lower end of the ball 36 is rotatably connected to the limit plate 38. The limit plate 38 is slidably connected to the inner wall of the cavity 37. A spring 1 is provided between the lower end of the limit plate 38 and the bottom end wall of the cavity 37.

[0038] The unloading component includes a base 2 39, a support frame 2 40, two symmetrically distributed support seats 41, a mounting plate 42 fixedly mounted on the bottom end of the support seat 41, a cylinder 43 mounted on the lower end of the mounting plate 42, a limit plate 2 44 slidably connected to the bottom end wall of the base 2 39, and a plurality of equidistantly distributed universal wheels mounted on the bottom end of the limit plate 2 44. One end of the base 2 39 is fixedly connected to the support frame 2 40, the lower end of the cylinder 43 is mounted on the limit plate 2 44, and an anti-slip rubber is fixed on the end surface of one end of the upper end of the support seat 41 close to the ball valve body 1. A hook 45 is provided at the upper end of the support frame 39, and the hook 45 is engaged with the positioning frame 30. A protrusion 46, a touch plate 47, a contact switch 48 and a controller 49 are provided in the support frame 40. The upper end of the protrusion 46 is provided outside the support frame 40, and the lower end of the protrusion 46 is fixedly connected to the touch plate 47. The touch plate 47 is slidably connected to the inner wall of the support frame 40. A contact switch 48 is provided on the inner wall of the support frame 40, and the contact switch 48 is electrically connected to the controller 49 through a wire 4. The controller 49 is installed at one end of the base 39, and the controller 49 is connected to the cylinder 43 signal.

[0039] In actual operation, when this device is used, the ball valve body 1 is first preliminarily assembled using the assembly components. The specific steps are as follows: the operator first inserts the right side of the positioning cylinder 1 2 into the left side of the positioning cylinder 2 3, and then snaps the positioning frame 30 onto the hook 2 33 to complete the fixing of the positioning cylinder 1 2 and the positioning cylinder 2 3. After that, the base is placed at the lower end of the support frame 1 32, and the ball valve body 1 is sleeved on the positioning cylinder 2 3. Finally, the positioning cylinder 3 4 is inserted into the positioning cylinder 2 3. Under the limiting action of the positioning cylinder 1 2 and the positioning cylinder 3 4, the placement of the ball valve body 1 is completed, ensuring that the coaxiality is accurate and the convenience of installing the ball valve body 1 is increased, ensuring that the ball 36 can rotate freely under the cooperation of the limiting plate 1 38 to reduce friction, and facilitating the adjustment of the position of the ball valve body 1.After the assembly is completed and confirmed to be correct through inspection, the hoisting component is used to transfer the ball valve body 1 to the welding station. At this time, the two positioning hooks 7 are first hooked on the two positioning columns 31 respectively, and then the crane 5 is started through the control mechanism, the hook 1 45 is connected to the chain 6 and the positioning hook 7 is lifted, and then the ball valve body 1 is suspended and moved to the welding component. During positioning, the fixed blocks 13 on the two rotating shafts 12 are matched with the positioning cylinder 1 2 and the positioning cylinder 3 4 and placed stably, and then the motor 5 26 is started to rotate forward, so that the two threaded plates 28 approach each other, and then the two fixed plates 11 are driven to approach each other through the limit block, thereby adjusting Adjust the position between the two fixing blocks 13 until the two positioning blocks 34 are respectively inserted into the interior of the positioning cylinder 1 2 and the positioning cylinder 2 3 to complete the positioning of the ball valve body 1. Then the laser welding head 15 on the welding component is driven by the moving mechanism 2 to move flexibly in space, so as to accurately weld the ball valve components coaxially in place. After welding is completed, the finished product is unloaded using the unloading component. At this time, the two positioning hooks 7 are hooked on the two positioning columns 31 respectively, and then the crane 5 is started through the control mechanism, the hook 1 45 is connected to the chain 6 and the positioning hook 7 is lifted, thereby suspending the ball valve body 1 and moving it to the unloading component. The hook 1 45 on the base 1 35 clamps the column positioning frame 30 to complete the fixation of the positioning cylinder 1 2, the positioning cylinder 2 3 and the positioning cylinder 3 4. At the same time, the bottom end of the positioning cylinder 1 2 causes the protrusion 46 to move down to the inside of the support frame 2 40, thereby driving the touch plate 47 to contact the contact switch 48. The wire 4 generates electricity, and the cylinder 43 works to extend, thereby driving the two support seats 41 to move upward to support the lower end of the ball valve body 1, and then the positioning cylinder 3 4 is taken down. After taking it down, the ball valve body 1 is pushed outward, and the limit plate 2 44 drives the base to move through the universal wheel for smooth unloading. The anti-slip rubber on the support seat 41 prevents it from slipping during movement. The finished product is not damaged during the process of movement. During the unloading process, the positioning hook 7 grabs the finished product from the welding position and transfers it to the top of the base. It is then accurately positioned again by the positioning frame 30 before being unloaded. The above steps ensure the efficient and accurate assembly and welding process of the ball valve components, realize the highly automated operation of the entire system, reduce manual intervention, improve production efficiency and enhance product quality assurance, ensure that they always maintain coaxiality during the welding process, thereby significantly improving welding quality. This precise positioning function avoids welding defects caused by component offset and greatly enhances the sealing and durability of the ball valve.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coaxial welding auxiliary assembly device for ball valve components, comprising a ball valve body (1), a first positioning cylinder (2), a second positioning cylinder (3), a third positioning cylinder (4), an assembly component, a hoisting component, a welding component, and a disassembly component, wherein the ball valve body (1) is assembled on the assembly component, the hoisting component moves the assembled ball valve body (1) to the welding component for welding, and the welded ball valve body (1) is disassembled on the disassembly component, characterized in that: The hoisting component includes a crane (5), a chain (6) connected to a hook on the crane (5), a positioning hook (7) connected to the bottom end of the chain (6), a motor (8) whose output shaft is fixedly connected to the chassis of the crane (5), a base (9) installed at the lower end of the motor (8), and a moving mechanism (9) provided at the lower end of the base (9). The crane (5) is also provided with a control mechanism. The welding component includes a welding table (10), a fixed plate (11) provided on the welding table (10), a rotating shaft (12) rotatably connected to the fixed plate (11), and two rotating shafts (12) fixed to the two rotating shafts (12). ) fixed blocks (13) close to one end of each other, a motor 2 (14) whose output shaft is fixedly connected to one side of one of the rotating shafts 1 (12), a laser welding head (15) of a laser welding machine provided above the welding table (10), and a moving mechanism 2, wherein the motor 2 (14) is installed on a fixed plate (11) on the same side, the two fixed blocks (13) are matched with the positioning cylinder 1 (2) and the positioning cylinder 2 (3) respectively, the fixed plate (11) is slidably provided on the bottom wall of the welding table (10) through a driving mechanism, and the moving mechanism 2 is used to drive the laser welding head (15) to move.

2. The coaxial welding auxiliary assembly device for ball valve components according to claim 1, characterized in that: The moving mechanism 1 includes a motor 3 (16) installed at the lower end of the machine base (9) and a moving wheel (17) fixedly connected to the output shafts at both ends of the motor 3 (16). The control mechanism includes an elastic tube (18) fixedly installed at the lower end of the crane (5) wall and a control box (19) fixedly arranged at the lower end of the elastic tube (18). The control box (19) is electrically connected to the motor 4 (20) provided on the crane (5) through the wire 1. The control box (19) is electrically connected to the motor 1 (8) through the wire 2. The control box (19) is electrically connected to the motor 3 (16) through the wire 3. The lower ends of the wire 1, the wire 2 and the wire 3 all pass through the elastic tube (18) and are arranged in the control box (19), and the middle parts of the wire 1, the wire 2 and the wire 3 are all stacked in the elastic tube (18) and are in a retractable state.

3. The coaxial welding auxiliary assembly device for ball valve components according to claim 1, characterized in that: The moving mechanism 2 includes a cylinder 1 (21) fixedly mounted on the upper end wall of the welding table (10), a slide 1 fixedly connected to the output shaft of the cylinder 1 (21), a cylinder 2 (22) mounted on the slide 1, a slide 2 (23) fixedly connected to the output shaft of the lower end of the cylinder 2 (22), a cylinder 3 (24) mounted on the slide 2 (23), and a drive plate (25) fixedly connected to the output shaft of the cylinder 3 (24), one end of the slide 1 and the slide 2 (23) are both slidably connected to the wall of the welding table (10), and the laser welding head (15) is mounted on the drive plate (25).

4. A ball valve component coaxial welding auxiliary assembly device according to claim 3, characterized in that: The driving mechanism comprises a motor five (26) mounted on the inner wall of the bottom end of the welding table (10), a threaded rod (27) fixedly connected to the output shafts at both ends of the motor five (26), a threaded plate (28) threadedly connected to the outer wall of the threaded rod (27), and a limit block fixedly connected to the upper end of the threaded plate (28); a limit opening one (29) is provided on the wall of the welding table (10); the limit block is slidably arranged in the limit opening one (29), and the upper end of the limit block is fixedly connected to the fixed block (13); and the threaded plate (28) is slidably connected to the inner wall of the welding table (10).

5. The coaxial welding auxiliary assembly device for ball valve components according to claim 1, characterized in that: One end of the positioning cylinder 1 (2) is clamped with the positioning cylinder 2 (3), and one end of the positioning cylinder 2 (3) is clamped with the positioning cylinder 3 (4). The ball valve body (1) is sleeved on the outer wall of the positioning cylinder 2 (3). The specifications and shapes of the positioning cylinder 1 (2) and the positioning cylinder 3 (4) are consistent. A positioning frame (30) is welded to the upper end of the positioning cylinder 1 (2) and the positioning cylinder 3 (4), and a positioning column (31) is welded to the upper end of the positioning frame (30).

6. The ball valve component coaxial welding auxiliary assembly device according to claim 5, characterized in that: The assembly component includes a support frame (32), a hook (33), a positioning block (34), a base (35), a ball (36), a cavity (37), a limit plate (38) and a spring. The positioning block (34) is arranged on one side of the upper end of the hook (33) and is integrally formed with the hook (33). The hook (33) is snap-connected with the positioning frame (30). The base (35) is placed on the lower end of the bracket. The upper end of the base (35) is movably provided with a plurality of equally distributed balls (36). The base (35) is provided with a plurality of cavities (37) corresponding to the positions of the balls (36). The lower end of the ball (36) is rotatably connected to the limit plate (38). The limit plate (38) is slidably connected to the inner wall of the cavity (37). A spring is provided between the lower end of the limit plate (38) and the bottom end wall of the cavity (37).

7. The ball valve component coaxial welding auxiliary assembly device according to claim 5, characterized in that: The unloading component includes a base 2 (39), a support frame 2 (40), two symmetrically distributed support seats (41), a mounting plate (42) fixedly mounted on the bottom end of the support seat (41), a cylinder 4 (43) mounted on the lower end of the mounting plate (42), a limit plate 2 (44) slidably connected to the bottom end wall of the base 2 (39), and a plurality of equidistantly distributed universal wheels mounted on the bottom end of the limit plate 2 (44). One end of the base 2 (39) is fixedly connected to the support frame 2 (40), the lower end of the cylinder 4 (43) is mounted on the limit plate 2 (44), and an anti-slip rubber is fixedly provided on the end surface of one end of the support seat (41) close to the ball valve body (1). The upper end of the base 2 (39) is provided with a hook 1 (45), and the hook 1 (46) is provided on the upper end of the base 2 (39). 5) is snap-fitted with the positioning frame (30), and the support frame 2 (40) is provided with a protrusion (46), a touch plate (47), a contact switch (48) and a controller (49), the upper end of the protrusion (46) is provided outside the support frame 2 (40), and the lower end of the protrusion (46) is fixedly connected with the touch plate (47), the touch plate (47) is slidably connected to the inner wall of the support frame 2 (40), a spring 2 is provided between the lower end of the touch plate (47) and the inner wall of the support frame 2 (40), a contact switch (48) is provided on the inner wall of the support frame 2 (40), and the contact switch (48) is electrically connected to the controller (49) through a wire 4, the controller (49) is installed at one end of the base 2 (39), and the controller (49) is connected to the cylinder 4 (43) by signal.

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