Welding device for valve production

Abstract

The welding device comprises a shell, universal wheels are fixedly connected to the four corners of the lower end of the shell, a control panel is fixedly installed on the right portion of the front end of the shell, an operation door is rotatably connected to the left portion of the front end of the shell, and a partition plate is fixedly connected to the inner surface of the shell; an arc welding assembly and an auxiliary assembly are arranged on the inner surface of the shell. According to the welding device for valve production, under the mutual cooperation effect of the welding mechanism and the reciprocating extrusion mechanism, the welding head can reciprocate front and back in the rotating process of the three-way valve, four arc-shaped seams communicating with each other on the outer surface of the three-way valve are accurately covered, and the welding efficiency is improved. The arc-shaped seam track and the welding head motion track are automatically matched in the three-dimensional space, the arc-shaped seam welding path is effectively controlled, and then the situation that welding is not uniform, and local overheating or welding defects are prone to occurring is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of valve production, and in particular to a welding device for valve production. Background Art

[0002] A three-way valve is a type of valve used to control the flow direction of a fluid. It usually has three connection ports that can switch or distribute the fluid. It is widely used in pipeline systems to change the flow direction of the fluid or distribute different flow rates. Therefore, like other types of valves, the three-way valve is mainly used to regulate, control or cut off the flow of fluid in the pipeline.

[0003] The welding technology of the connection seams on the outer surface of the three-way valve is mainly used to ensure the sealing and strength of the various connection parts of the valve body to prevent fluid leakage. Since the three-way valve usually needs to withstand higher pressure and temperature, welding can effectively improve the structural stability of the connection and ensure that the valve does not loosen or damage during operation. In addition, the welding process can make the connection tighter and avoid leakage problems that may be caused by traditional connection methods, thereby improving the safety and service life of the valve. Therefore, welding is not only to ensure the sealing of the valve, but also to enhance its durability and reliability.

[0004] Chinese Patent Publication No. CN214212664U discloses a welding device for valve production, comprising a base, a welding support column fixedly mounted on the top of the base, a top plate fixedly mounted on the top of the welding support column, a linear module fixedly mounted on the bottom of the top plate, an electric push rod fixedly mounted on the bottom of the linear module, a welding device body fixedly mounted on the bottom of the electric push rod, a support fixedly mounted on the left side of the welding support column fixedly mounted on the top of the base, and a motor fixedly mounted on the top of the support. This valve production welding device, by providing a linear module on the electric push rod, facilitates the left and right movement of the welding device body during welding. During use, the welding device body can be adjusted according to the use requirements, thereby achieving the purpose of automatically and stably welding the valve, reducing labor costs and improving welding efficiency. However, the above patent document still has the following defects during implementation:

[0005] Although the above patent can realize the left and right movement of the welding device body during welding during implementation, it is impossible to weld the four connected arc seams on the outer surface of the three-way valve. It is difficult to accurately cover the four connected arc seams on the outer surface of the three-way valve by manual welding. The arc seam welding path is difficult to control. At the same time, it is difficult to match the arc seam trajectory with the three-dimensional space of the welding head movement trajectory, resulting in uneven welding, local overheating or welding defects. Summary of the Invention

[0006] The main purpose of the present invention is to provide a welding device for valve production, which can effectively solve the problems of difficulty in controlling the manual welding trajectory of the four interconnected arc seams on the outer surface of the three-way valve, insufficient accuracy of spatial matching between the three-dimensional motion trajectory of the welding head and the arc seams, resulting in uneven welding, easy local overheating and welding defects.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a welding device for valve production, comprising a shell, universal wheels are fixedly connected to the four corners of the lower end of the shell, a control panel is fixedly installed on the right front end of the shell, an operating door is rotatably connected to the left front end of the shell, a partition is fixedly connected to the inner surface of the shell, and an arc welding component and an auxiliary component are provided on the inner surface of the shell.

[0008] Preferably, the arc welding assembly includes a hollow frame fixedly connected to the inner surface of the partition, the inner surface of the hollow frame is provided with a welding mechanism, and the outer surface of the welding mechanism and the outer surface of the hollow frame are jointly provided with a reciprocating extrusion mechanism.

[0009] Preferably, the welding mechanism includes a circular groove rod rotatably connected to the horizontal inner surface of the hollow frame, the vertical inner surface of the hollow frame is rotatably connected to a circular rod, the upper end of the circular rod and the right end of the circular groove rod are jointly fixedly connected to a transmission mechanism 1, the lower end of the round rod is fixedly connected to a transmission mechanism 2, the outer surface of the hollow frame is fixedly connected to a fixed frame, the inner surface of the fixed frame is slidably connected to a sliding rod, and the inner surface of the sliding rod is fixedly installed with a welding head.

[0010] Preferably, the reciprocating extrusion mechanism includes an extrusion arc block fixedly connected to the outer surface of the circular groove rod, the outer surface of the sliding rod is fixedly connected to a fixed block slidably connected to the fixed frame, the outer surface of the sliding rod is sleeved with a spring 1, and the two ends of the spring 1 are respectively fixedly connected to the fixed block and the fixed frame.

[0011] Preferably, the auxiliary component includes a cylinder fixedly connected to the right part of the inner surface of the outer shell, a pushing mechanism is provided at the left end of the cylinder, a lifting mechanism is provided on the inner surface of the partition, a fixing mechanism is provided on the inner surface of the pushing mechanism, a hydraulic mechanism is provided on the lower part of the inner surface of the outer shell, and an insertion mechanism is provided on the inner surface of the circular groove rod.

[0012] Preferably, the pushing mechanism includes a circular groove block that is slidably connected to the inner surface of the cylinder and the inner surface of the outer shell, the outer surface of the cylinder is fixedly connected to a fixed ring, the inner surface of the circular groove block is rotatably connected to a rotating ring, and the outer surface of the cylinder is sleeved with a spring 2, and the two ends of the spring 2 are respectively fixedly connected to one end of the fixed ring and one end of the circular groove block.

[0013] Preferably, the lifting mechanism includes a rectangular rod fixedly connected to the inner surface of the partition, the inner surface of the rectangular rod is slidably connected to a lifting rod, the upper end of the lifting rod is fixedly connected to a positioning block, the outer surface of the lifting rod is sleeved with a spring three, the two ends of the spring three are respectively fixedly connected to the lower part of the inner surface of the rectangular rod and one end of the lifting rod, the outer surface of the cylinder is fixedly connected to a slider rod, the left end of the slider rod is fixedly connected to a Z-shaped plate, the front left end of the Z-shaped plate is fixedly connected to a convex block, and the convex block is fixedly connected to the transmission mechanism two.

[0014] Preferably, the fixing mechanism includes a circular ring fixedly connected to the upper end of the partition, the outer surface of the rotating ring is symmetrically fixed with a connecting block, the inner surfaces of the two connecting blocks are slidably connected to an extrusion rod slidably connected to the rotating ring, the ends of the two extrusion rods close to each other are fixedly connected to a conical block one, the outer surfaces of the two extrusion rods are each sleeved with a spring four, the two ends of the two springs four are respectively fixedly connected to the inner surface of the connecting block and the rotating ring, and the inner surface of the circular ring is slidably connected with a number of arc blocks distributed at equal distances in an annular manner.

[0015] Preferably, the hydraulic mechanism includes a placement box fixedly connected to the lower part of the inner surface of the outer shell, a rectangular plate fixedly connected to the inner surface of the placement box, a push rod fixedly connected to the placement box and the rectangular plate at the rear left end of the Z-shaped plate, a spring five fixedly connected to the left end of the push rod, and a push plate fixedly connected to the placement box and the push rod for sliding connection respectively at the front end of the spring five, the inner surface of the rectangular plate is connected to the inner surface of the circular ring through a hard pipe, and the inner surface of the rectangular plate is connected to the inner surface of the circular groove rod through a hard pipe.

[0016] Preferably, the insertion mechanism includes a piston rod slidably connected to the inner surface of the circular groove rod, the right end of the piston rod is fixedly connected to the second conical block, and the outer surface of the second conical block is fixedly connected to a rubber block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, by setting up a welding mechanism and a reciprocating extrusion mechanism to cooperate with each other, the welding head can move back and forth during the rotation of the three-way valve, accurately covering the four connected arc seams on the outer surface of the three-way valve, so that the arc seam trajectory and the welding head movement trajectory are automatically matched in three-dimensional space, effectively controlling the arc seam welding path, thereby avoiding uneven welding, local overheating or welding defects.

[0019] 2. In the present invention, by providing a fixing mechanism, a hydraulic mechanism and an insertion mechanism, the three-way valve is firmly fixed in the set position by the precise injection and gradual advancement of the hydraulic oil, thereby ensuring stability and accuracy during welding. With the uniform distribution of the pressure in the inner cavity of the ring, the positions of the three holes of the three-way valve are effectively fixed, avoiding poor welding caused by vibration or deviation, thereby improving the welding quality and ensuring the uniformity and reliability of the joint welding.

[0020] 3. In the present invention, a lifting mechanism is provided, and under the movement of the lifting rod 635, the three-way valve can automatically move to the welding position. The three-way valve can be stably positioned at the welding position, so that the welding process is highly precise and consistent. The automated adjustment and movement mode effectively avoids positioning errors, ensures the uniformity and reliability of the joint during welding, thereby improving welding quality and reducing potential welding defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 This is a schematic structural diagram of the arc welding assembly and auxiliary assembly of the present invention;

[0024] Figure 4 Schematic diagram of the cross-sectional structure of the rotating mechanism of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the reciprocating extrusion mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the explosion effect of the propulsion mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the cross-sectional structure of the lifting mechanism of the present invention;

[0028] Figure 8 Schematic diagram of the cross-sectional structure of the fixing mechanism of the present invention;

[0029] Figure 9 Schematic diagram of the cross-sectional structure of the hydraulic mechanism of the present invention;

[0030] Figure 10 For the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0031] In the figure: 1. Housing; 2. Universal wheel; 3. Control panel; 4. Operating door; 5. Arc welding assembly; 51. Hollow frame; 52. Welding mechanism; 521. Round rod; 522. Transmission mechanism 1; 523. Round groove rod; 524. Transmission mechanism 2; 525. Fixed frame; 526. Sliding rod; 527. Welding head; 53. Reciprocating extrusion mechanism; 531. Extrusion arc block; 532. Fixed block; 533. Spring 1; 6. Auxiliary assembly; 61. Cylinder; 62. Pushing mechanism; 621. Round groove block; 622. Fixed ring; 623. Rotating ring; 624. Spring 2; 63. Lifting mechanism; 631, slider rod; 632, Z-shaped plate; 633, convex block; 634, rectangular rod; 635, lifting rod; 636, positioning block; 637, spring three; 64, fixing mechanism; 641, circular ring; 642, connecting block; 643, extrusion rod; 644, conical block one; 645, spring four; 646, arc block; 65, hydraulic mechanism; 651, rectangular plate; 652, push rod; 653, push plate; 654, spring five; 655, placement box; 66, insertion mechanism; 661, piston rod; 662, conical block two; 663, rubber block; 7, partition. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] Example 1, as Figure 1 and Figure 2 As shown, a welding device for valve production includes a shell 1, universal wheels 2 are fixedly connected to the four corners of the lower end of the shell 1, a control panel 3 is fixedly installed on the right front end of the shell 1, an operating door 4 is rotatably connected to the left front end of the shell 1, a partition 7 is fixedly connected to the inner surface of the shell 1, and an arc welding component 5 and an auxiliary component 6 are provided on the inner surface of the shell 1.

[0034] During the implementation of this embodiment, the three-way valve is placed on the auxiliary component 6, and then the auxiliary component 6 is used to lift the position of the three-way valve by operating the control panel 3. After the lifting, the three holes of the three-way valve are positioned and clamped by hydraulic means. After positioning, the three-way valve is driven to rotate one circle. During the rotation, the arc welding component 5 is used to perform arc welding operations on the arc joints on the outer surface of the three-way valve.

[0035] The control panel 3 mentioned above is a mature control technology means and equipment in the prior art. In this solution, its controllable functions are utilized, and its internal structure, principle and connection method are not further elaborated.

[0036] Specifically, in order to realize the positioning and rotation welding of the three-way valve, refer to Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 In this embodiment, the auxiliary component 6 includes a cylinder 61 fixedly connected to the right part of the inner surface of the outer shell 1, a pushing mechanism 62 is provided at the left end of the cylinder 61, a lifting mechanism 63 is provided on the inner surface of the partition 7, a fixing mechanism 64 is provided on the inner surface of the pushing mechanism 62, a hydraulic mechanism 65 is provided on the lower part of the inner surface of the outer shell 1, and an insertion mechanism 66 is provided on the inner surface of the circular groove rod 523.

[0037] For further information, see Figure 3 and Figure 7 In this embodiment, the lifting mechanism 63 includes a rectangular rod 634 fixedly connected to the inner surface of the partition 7, the inner surface of the rectangular rod 634 is slidably connected to the lifting rod 635, the upper end of the lifting rod 635 is fixedly connected to the positioning block 636, the outer surface of the lifting rod 635 is sleeved with a spring three 637, the two ends of the spring three 637 are respectively fixedly connected to the lower part of the inner surface of the rectangular rod 634 and one end of the lifting rod 635, the outer surface of the cylinder 61 is fixedly connected to the slider rod 631, the left end of the slider rod 631 is fixedly connected to the Z-shaped plate 632, the front left end of the Z-shaped plate 632 is fixedly connected to the convex block 633, and the convex block 633 is fixedly connected to the transmission mechanism two 524.

[0038] For further information, see Figure 3 and Figure 6 In this embodiment, the pushing mechanism 62 includes a circular groove block 621 that is slidably connected to the inner surface of the cylinder 61 and the inner surface of the outer shell 1, a fixed ring 622 is fixedly connected to the outer surface of the cylinder 61, and a rotating ring 623 is rotatably connected to the inner surface of the circular groove block 621. A spring 2 624 is sleeved on the outer surface of the cylinder 61, and the two ends of the spring 2 624 are respectively fixedly connected to one end of the fixed ring 622 and one end of the circular groove block 621.

[0039] During the implementation process, the three-way valve is placed on the inner surface of the positioning block 636, and then the cylinder 61 is started to push the circular groove block 621 to move. When the circular groove block 621 moves to the leftmost position on the inner surface of the shell 1, the circular groove block 621 cannot slide again, but the cylinder 61 can still continue to push to the left, so that the spring 2 624 is in a compressed state. In the process of continuing to push to the left, the cylinder 61 will drive the Z-shaped plate 632 on the slider rod 631 to push to the left, so that the left inclined surface of the convex block 633 can move to the bottom of the roller at the lower end of the lifting rod 635, so that the roller The wheel is squeezed to push the positioning block 636 on the lifting rod 635 to move upward, and the spring three 637 is in a compressed state. When the roller on the lifting rod 635 moves to the level of the convex block 633, the lifting rod 635 moves the three-way valve to the set height position, so that the three-way valve can automatically move to the welding position. The three-way valve can be stably positioned in the welding position, so that the welding process is highly accurate and consistent. The automated adjustment and movement method effectively avoids positioning errors, ensures the uniformity and reliability of the joint seam during welding, thereby improving welding quality and reducing potential welding defects.

[0040] For further information, see Figure 3 and Figure 9 In this embodiment, the hydraulic mechanism 65 includes a placement box 655 fixedly connected to the lower part of the inner surface of the outer shell 1, a rectangular plate 651 is fixedly connected to the inner surface of the placement box 655, a push rod 652 is fixedly connected to the placement box 655 and the rectangular plate 651 at the rear of the left end of the Z-shaped plate 632, a spring five 654 is fixedly connected to the left end of the push rod 652, and a push plate 653 is fixedly connected to the placement box 655 and the push rod 652 at the front end of the spring five 654. The inner surface of the rectangular plate 651 is connected to the inner surface of the ring 641 through a hard pipe, and the inner surface of the rectangular plate 651 is connected to the inner surface of the circular groove rod 523 through a hard pipe.

[0041] For further information, see Figure 3 and Figure 8 In this embodiment, the fixing mechanism 64 includes a circular ring 641 fixedly connected to the upper end of the partition 7, and the outer surface of the rotating ring 623 is symmetrically fixedly connected to the connecting block 642. The inner surfaces of the two connecting blocks 642 are slidably connected to the extrusion rods 643 slidably connected to the rotating ring 623. The ends of the two extrusion rods 643 close to each other are fixedly connected to the conical block 1 644. The outer surfaces of the two extrusion rods 643 are both sleeved with springs 4 645. The two ends of the two springs 4 645 are respectively fixedly connected to the inner surface of the connecting block 642 and the rotating ring 623. The inner surface of the circular ring 641 is equidistantly distributed and slidably connected to a number of arc blocks 646.

[0042] During implementation, when the three-way valve moves to the set height, the two extrusion rods 643 on the rotating ring 623 are in the inner cavity of the circular ring 641, and the Z-shaped plate 632 will push the push rod 652 to slide on the inner surface of the placement box 655 and the rectangular plate 651, so that the push plate 653 slides on the inner surface of the placement box 655 under the action of the spring five 654, and the hydraulic oil in the inner cavity of the placement box 655 enters the inner surface of the circular ring 641 through the hard pipe. When the inner cavity of the circular ring 641 is filled with hydraulic oil, it will gradually push several arc blocks 646 closer to each other, making the diameter of the circular ring 641 smaller. At this time, the rollers on the extrusion rod 643 The ball will be squeezed by the arc block 646, so that the two squeezing rods 643 move closer to each other in the middle, and the spring four 645 is in a compressed state. The two conical blocks 1 644 can be inserted into the two corresponding circular holes of the three-way valve to fix the front and rear positions of the three-way valve. Through the precise injection and gradual advancement of hydraulic oil, the three-way valve is firmly fixed in the set position to ensure stability and accuracy during welding. With the uniform distribution of pressure in the inner cavity of the ring 641, the front and rear positions of the three-way valve are effectively fixed, avoiding poor welding caused by vibration or deviation, thereby improving welding quality and ensuring the uniformity and reliability of the joint welding.

[0043] For further information, see Figure 10 In this embodiment, the insertion mechanism 66 includes a piston rod 661 slidably connected to the inner surface of the circular groove rod 523, the right end of the piston rod 661 is fixedly connected to the conical block 662, and the outer surface of the conical block 662 is fixedly connected to the rubber block 663.

[0044] During the implementation process, when the push plate 653 pushes the placement box 655, the hydraulic oil will be transported into the inner cavity of the circular groove rod 523 through the hard pipe. Under the action of the hydraulic pressure, the conical block 2 662 on the piston rod 661 is pushed into the circular hole on the left side of the three-way valve. The rubber block 663 is tightly attached to the inner surface of the three-way valve, and cooperates with the fixing mechanism 64 to complete the comprehensive clamping and positioning of the three-way valve.

[0045] It should be noted that the hard pipe connected to the circular groove rod 523 is rotatably connected to the circular groove rod 523.

[0046] Embodiment 2: Based on embodiment 1, this embodiment adds arc surface welding on the seams on the outer surface of the three-way valve, thereby achieving the purpose of arc surface welding on the seams on the outer surface of the three-way valve.

[0047] Specifically, in order to perform arc welding on the outer surface seam of the three-way valve, the arc welding assembly 5 is referred to Figure 3 、 Figure 4 and Figure 5In this embodiment, the arc welding assembly 5 includes a hollow frame 51 fixedly connected to the inner surface of the partition 7, a welding mechanism 52 is provided on the inner surface of the hollow frame 51, and a reciprocating extrusion mechanism 53 is provided on the outer surface of the welding mechanism 52 and the outer surface of the hollow frame 51.

[0048] For further information, see Figure 3 、 Figure 4 and Figure 5 In this embodiment, the welding mechanism 52 includes a circular groove rod 523 rotatably connected to the inner surface of the hollow frame 51 in the horizontal direction, and the circular rod 521 is rotatably connected to the inner surface of the hollow frame 51 in the vertical direction. The upper end of the circular rod 521 and the right end of the circular groove rod 523 are fixedly connected to the transmission mechanism 1 522, and the lower end of the circular rod 521 is fixedly connected to the transmission mechanism 2 524. The outer surface of the hollow frame 51 is fixedly connected to the fixed frame 525, and the inner surface of the fixed frame 525 is slidably connected to the sliding rod 526, and the inner surface of the sliding rod 526 is fixedly installed with a welding head 527.

[0049] During the implementation process, the cylinder 61 will continue to move to the left. At this time, the push plate 653 is close to the right end of the rectangular plate 651, and the spring five 654 is in a compressed state. At the same time, the roller at the lower end of the lifting rod 635 moves to the horizontal plane to the right of the convex block 633, and the positioning block 636 has long been away from the three-way valve.

[0050] Secondly, the transmission mechanism 2 524 on the convex block 633 will engage with the transmission mechanism at the lower end of the round rod 521, which will drive the round rod 521 to rotate, and under the transmission action of the transmission mechanism 1 522, drive the round groove rod 523 to rotate, and then drive the three-way valve to rotate under the action of friction through the rubber block 663 on the conical block 2 662. At the same time, the ball on the extrusion rod 643 is passively rotated on the outer surface of the arc block 646. The three-way valve can maintain stable rotation and position adjustment during the welding process, so that the welding joint is uniform and consistent. The friction of the rubber block 663 helps the three-way valve to rotate accurately while avoiding any position deviation or vibration, thereby improving welding accuracy, improving the quality of the joint during welding, and reducing potential welding defects.

[0051] The transmission mechanism 522 mentioned above is composed of two bevel gears in the prior art.

[0052] The second transmission mechanism 524 is composed of a rack and pinion in the prior art, and the rack is connected to the left end of the convex block 633, and the gear is connected to the lower end of the round rod 521.

[0053] It should be noted that the cooperation between the transmission mechanism 1 522 and the transmission mechanism 2 524 in this solution is sufficient to drive the circular groove rod 523 to rotate one circle on the inner surface of the hollow frame 51.

[0054] For further information, see Figure 3 and Figure 5 In this embodiment, the reciprocating extrusion mechanism 53 includes an extrusion arc block 531 fixedly connected to the outer surface of the circular groove rod 523, a fixed block 532 fixedly connected to the outer surface of the sliding rod 526 and slidably connected to the fixed frame 525, and a spring 533 is sleeved on the outer surface of the sliding rod 526, and the two ends of the spring 533 are respectively fixedly connected to the fixed block 532 and the fixed frame 525.

[0055] During the implementation process, the circular groove rod 523 will drive the extrusion arc surface block 531 to rotate during the rotation process. During the rotation process, the extrusion arc surface block 531 will gradually squeeze the slide rod 526 through the four large arc surfaces on the outer surface to slide on the inner surface of the fixed frame 525, so that the spring 1 533 is in a compressed state, and the welding head 527 can perform four reciprocating movements back and forth, and cooperate with the rotation of the three-way valve during the movement to weld the four arc-shaped connected seams on the outer surface of the three-way valve. The reciprocating movement of the welding head 527 is combined with the rotation of the three-way valve, so that the welding process can accurately cover the four connected arc-shaped seams on the outer surface of the three-way valve. This coordinated movement improves the uniformity and accuracy of welding, and can evenly apply welding heat to each seam, thereby avoiding local overheating or welding defects. The back and forth movement of the welding head 527 cooperates with the rotation of the three-way valve to effectively improve the welding quality, improve the firmness and stability of the connection seam, and significantly enhance the overall performance of the final product.

[0056] The welding head 527 mentioned above is a mature welding technology means and equipment in the prior art. In this solution, its welding function is utilized, and its internal structure, principle and connection method are not further explained.

[0057] Working process: When in use, the three-way valve is automatically lifted by the cooperation of the pushing mechanism 62 and the lifting mechanism 63, and the front, back, left and right positions of the three-way valve are fixed with the cooperation of the fixing mechanism 64, the hydraulic mechanism 65 and the insertion mechanism 66. With the cooperation of the welding mechanism 52 and the reciprocating extrusion mechanism 53, the four arc-shaped connecting seams on the outer surface of the three-way valve are welded during the rotation of the three-way valve.

[0058] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for valve production, comprising a housing (1), characterized in that: Universal wheels (2) are fixedly connected at the four corners of the lower end of the shell (1), a control panel (3) is fixedly installed on the right front end of the shell (1), an operating door (4) is rotatably connected to the left front end of the shell (1), a partition (7) is fixedly connected to the inner surface of the shell (1), and an arc welding component (5) and an auxiliary component (6) are provided on the inner surface of the shell (1).

2. A valve production welding device according to claim 1, characterized in that: The arc welding assembly (5) comprises a hollow frame (51) fixedly connected to the inner surface of the partition (7), the inner surface of the hollow frame (51) is provided with a welding mechanism (52), and the outer surface of the welding mechanism (52) and the outer surface of the hollow frame (51) are jointly provided with a reciprocating extrusion mechanism (53).

3. A valve production welding device according to claim 2, characterized in that: The welding mechanism (52) includes a circular groove rod (523) rotatably connected to the inner surface of the hollow frame (51) in the horizontal direction, the inner surface of the hollow frame (51) is rotatably connected to the circular rod (521), the upper end of the circular rod (521) and the right end of the circular groove rod (523) are fixedly connected to a transmission mechanism 1 (522), the lower end of the circular rod (521) is fixedly connected to a transmission mechanism 2 (524), the outer surface of the hollow frame (51) is fixedly connected to a fixed frame (525), the inner surface of the fixed frame (525) is slidably connected to a slide rod (526), and the inner surface of the slide rod (526) is fixedly installed with a welding head (527).

4. A valve production welding device according to claim 3, characterized in that: The reciprocating extrusion mechanism (53) includes an extrusion arc block (531) fixedly connected to the outer surface of the circular groove rod (523), the outer surface of the sliding rod (526) is fixedly connected to a fixed block (532) slidably connected to the fixed frame (525), and the outer surface of the sliding rod (526) is provided with a spring (533), and the two ends of the spring (533) are respectively fixedly connected to the fixed block (532) and the fixed frame (525).

5. A valve production welding device according to claim 3, characterized in that: The auxiliary component (6) includes a cylinder (61) fixedly connected to the right part of the inner surface of the shell (1), a pushing mechanism (62) is provided at the left end of the cylinder (61), a lifting mechanism (63) is provided on the inner surface of the partition (7), a fixing mechanism (64) is provided on the inner surface of the pushing mechanism (62), a hydraulic mechanism (65) is provided at the lower part of the inner surface of the shell (1), and an insertion mechanism (66) is provided on the inner surface of the circular groove rod (523).

6. A valve production welding device according to claim 5, characterized in that: The pushing mechanism (62) comprises a circular groove block (621) slidably connected to the inner surface of the cylinder (61) and the inner surface of the housing (1); a fixing ring (622) is fixedly connected to the outer surface of the cylinder (61); a rotating ring (623) is rotatably connected to the inner surface of the circular groove block (621); a second spring (624) is sleeved on the outer surface of the cylinder (61); and two ends of the second spring (624) are fixedly connected to one end of the fixing ring (622) and one end of the circular groove block (621), respectively.

7. A valve production welding device according to claim 5, characterized in that: The lifting mechanism (63) includes a rectangular rod (634) fixedly connected to the inner surface of the partition (7), the inner surface of the rectangular rod (634) is slidably connected to a lifting rod (635), the upper end of the lifting rod (635) is fixedly connected to a positioning block (636), the outer surface of the lifting rod (635) is sleeved with a spring three (637), the two ends of the spring three (637) are respectively fixedly connected to the lower part of the inner surface of the rectangular rod (634) and one end of the lifting rod (635), the outer surface of the cylinder (61) is fixedly connected to a slider rod (631), the left end of the slider rod (631) is fixedly connected to a Z-shaped plate (632), the front left end of the Z-shaped plate (632) is fixedly connected to a convex block (633), and the convex block (633) is fixedly connected to the transmission mechanism two (524).

8. A valve production welding device according to claim 6, characterized in that: The fixing mechanism (64) includes a circular ring (641) fixedly connected to the upper end of the partition (7); the outer surface of the rotating ring (623) is symmetrically fixedly connected to a connecting block (642); the inner surfaces of the two connecting blocks (642) are slidably connected to an extrusion rod (643) slidably connected to the rotating ring (623); the ends of the two extrusion rods (643) close to each other are fixedly connected to a conical block (644); the outer surfaces of the two extrusion rods (643) are sleeved with a spring (645); the two ends of the two springs (645) are respectively fixedly connected to the inner surface of the connecting block (642) and the rotating ring (623); the inner surface of the circular ring (641) is slidably connected to a plurality of arc blocks (646) distributed in an annular manner at equal distances.

9. A valve production welding device according to claim 7, characterized in that: The hydraulic mechanism (65) includes a placement box (655) fixedly connected to the lower portion of the inner surface of the housing (1); a rectangular plate (651) is fixedly connected to the inner surface of the placement box (655); a push rod (652) is fixedly connected to the rear portion of the left end of the Z-shaped plate (632) and is slidably connected to the placement box (655) and the rectangular plate (651); a spring (654) is fixedly connected to the left end of the push rod (652); a push plate (653) is fixedly connected to the placement box (655) and the push rod (652) at the front end of the spring (654); the inner surface of the rectangular plate (651) is connected to the inner surface of the ring (641) through a hard pipe, and the inner surface of the rectangular plate (651) is connected to the inner surface of the circular groove rod (523) through a hard pipe.

10. A valve production welding device according to claim 5, characterized in that: The insertion mechanism (66) includes a piston rod (661) slidably connected to the inner surface of the circular groove rod (523), the right end of the piston rod (661) is fixedly connected to a second conical block (662), and the outer surface of the second conical block (662) is fixedly connected to a rubber block (663).

Images