Welding and assembling equipment for isolating valve of oil tank

Abstract

The invention discloses oil tank isolation valve welding and assembling equipment which comprises a rack, a first press-fitting device, a second press-fitting device, a third press-fitting device, a fourth press-fitting device, a fourth press-fitting device, a fifth press-fitting device, a fifth press-fitting device and a sixth press-fitting device, the first press-fitting device comprises a first mounting frame, and the first mounting frame is provided with a first press-fitting assembly capable of moving up and down; the second press-fitting device comprises a second mounting frame, a second press-fitting assembly capable of moving up and down is arranged on the second mounting frame, and a second fixing seat assembly is arranged on the lower side of the second press-fitting assembly; the welding device comprises a movable frame, a welding head is arranged on the movable frame, and the welding head moves on the movable frame and conducts welding. The oil tank isolation valve press-fitting device has the beneficial effects that press-fitting of a whole product is completed twice by arranging the first press-fitting device and the second press-fitting device, meanwhile, automatic welding is conducted after press-fitting is conducted every time, manual carrying is reduced, the overall assembly precision and the product percent of pass of the oil tank isolation valve are improved, and the machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of valve processing technology, specifically to a welding and assembly equipment for an oil tank isolation valve. Background Technology

[0002] The fuel tank isolation valve is a key component of modern fuel systems, primarily used to control the flow and isolation of fuel vapors. This is crucial for meeting environmental regulations (such as evaporative emission standards) and ensuring safe vehicle operation. The valve body typically consists of multiple precision metal components, such as large connectors, small connectors, nozzles, and solenoid valves. These components require high-precision, high-strength connections to ensure the valve body maintains excellent sealing performance, structural integrity, and reliability even under long-term exposure to fuel vapors, pressure fluctuations, and mechanical vibrations.

[0003] In traditional manufacturing processes, the assembly and welding of fuel tank isolation valves are primarily completed manually in stages. Operators must manually align and pre-assemble components such as large and small connectors before welding. This method has several significant drawbacks: First, manual placement and alignment are inefficient and inconsistent, with product quality highly dependent on the operator's experience and skill. Human factors can easily lead to component misalignment, uneven pressure during pressing, or welding position deviations. Second, traditional fixed welding methods struggle to achieve uniform weld seams, especially during circumferential welding, which may require multiple adjustments to the workpiece or welding torch angle. This not only affects welding quality (e.g., incomplete penetration, undercut) but also reduces production cycle time. Furthermore, material transfer between processes (such as pressing and welding) often relies on manual handling, further increasing production time, labor intensity, and the risk of component damage during transport. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a welding and assembly equipment for oil tank isolation valves, which realizes automatic welding of valves, improves processing efficiency, and ensures welding quality.

[0005] Specifically, this invention discloses a welding and assembly equipment for an oil tank isolation valve, comprising:

[0006] frame:

[0007] The first pressing device includes a first mounting frame on which a first pressing component that can move up and down is provided, and a first fixing seat assembly is provided on the lower side of the first pressing component;

[0008] The second pressing device includes a second mounting frame on which a second pressing assembly that can move up and down is provided, and a second fixing seat assembly is provided on the lower side of the second pressing assembly;

[0009] A welding apparatus includes a movable frame on which a welding head is mounted, the welding head moving on the movable frame to perform welding.

[0010] The advantages of this invention are that by setting a first pressing device and a second pressing device to complete the pressing of the entire product in two steps, and automatically welding after each pressing, manual handling is reduced, the overall assembly accuracy and product qualification rate of the oil tank isolation valve are improved, and the processing efficiency is increased.

[0011] Furthermore, the first mounting bracket is provided with a first vertical drive component and a first horizontal drive component. The first vertical drive component drives the first horizontal drive component to move up and down, and the first horizontal drive component drives the first pressing component to move horizontally.

[0012] Furthermore, the first pressing assembly includes a mounting block connected to the output end of the first horizontal drive assembly, a pressing head connected to the bottom of the mounting block, and a pressing block mounted on the side of the mounting block.

[0013] The advantage of adopting the above technical solution is that the first vertical drive component realizes the pressing action, and the pressing block is set up. It first extends into the product to press the nozzle placed in the product housing into place. Then, the first horizontal drive component drives the pressing head to move towards the bottom of the product to complete the pressing of the product. This ensures the accuracy and consistency of pressing and avoids the problem of product damage or incomplete assembly due to improper pressing depth.

[0014] Furthermore, the first fixed base assembly includes: a first movable module, a first movable plate, a rotating base, and a positioning post. The first movable module is mounted on the frame, the first movable plate moves along the first movable module, the rotating base is mounted on the first movable plate, the rotating base is connected to a driving component to drive its rotation, and the positioning post is mounted on the rotating base for limiting the product.

[0015] The advantage of adopting the above technical solution is that the setting of the first moving module drives the product from the pressing position to the welding device to complete the welding, while the setting of the rotating seat makes the product rotate automatically during the welding process, realizing the automatic movement and rotation welding of the product, and ensuring welding accuracy.

[0016] Furthermore, a first limiting side plate and a second limiting side plate are installed on both sides of the positioning column. An arc-shaped groove is provided on the top of the second limiting side plate. Telescopic heads for limiting the product are symmetrically arranged on the sides of the first limiting side plate and the second limiting side plate. The telescopic heads are connected to a connecting rod. The other end of the connecting rod passes through the connecting block. The connecting rod is fitted with a spring and can move horizontally.

[0017] The advantages of adopting the above technical solution are that the two limiting plates play a limiting role, the arc groove plays a limiting role, and the telescopic head is used to position the product after it is placed, so as to ensure that the product will not shake during the pressing and welding process, and to ensure the pressing and welding quality of the product.

[0018] Furthermore, the telescopic head is provided with a protrusion facing the positioning post, the protrusion being used to prevent the product from moving up and down.

[0019] The advantage of adopting the above technical solution is that after the product is placed in place, the telescopic head extends under the action of the spring, and the protrusion cooperates with the edge of the product to prevent the product from moving upward, thus playing a fixing role and avoiding product position deviation.

[0020] Furthermore, the second fixed base assembly includes: a second movable module, a second movable plate, a second rotating base, and a receiving platform. The second movable plate is mounted on the second movable module, the second rotating base is mounted on the second movable plate, and the receiving platform is mounted on the second rotating base. The receiving platform is provided with positioning holes for limiting the product.

[0021] The advantage of adopting the above technical solution is that the second moving module is used to drive the product from the pressing station to the welding station, realize automated pressing and welding, and ensure the quality of pressing and welding.

[0022] Furthermore, the receiving platform is provided with a limiting side plate and a first clamping plate. The first clamping plate is connected to a first driving member for driving the first clamping plate to move toward the limiting side plate. The first clamping plate is provided with symmetrically arranged protrusions, and the ends of the protrusions are provided with limiting posts.

[0023] The advantage of adopting the above technical solution is that the limiting side plate is used to limit the position of the product, and at the same time, after the product is placed in place, it is clamped by the first clamping plate to ensure that the product will not shake during the pressing and welding process.

[0024] Furthermore, the second pressing assembly includes: a second vertical drive assembly on which a second pressing head and a second clamping assembly are mounted, the bottom of the second pressing head is provided with a receiving groove, the side of the receiving groove is provided with a limiting groove, and the second clamping assembly is used to fix the product in the second pressing head.

[0025] The advantage of adopting the above technical solution is that the second pressure head is used to fix the product parts and press them into the product placed on the lower side, and the second clamping assembly is used to fix the parts and ensure the pressing accuracy.

[0026] Furthermore, the limiting side plate is equipped with a movable second clamping plate, which is connected to a second driving member. The second driving member drives the second clamping plate to move horizontally to clamp the product.

[0027] The advantage of adopting the above technical solution is that the second clamping plate also serves to limit and clamp the product, ensuring that the product does not move during processing. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0029] Figure 1 This is a schematic diagram of the overall structure of the welding and assembly equipment for the oil tank isolation valve of the present invention.

[0030] Figure 2 This is an enlarged view of point A in the present invention.

[0031] Figure 3 This is a structural diagram of the present invention with part of the cover plate removed.

[0032] Figure 4 This is a schematic diagram of the structure of the first fixing base assembly of the present invention.

[0033] Figure 5 This is a cross-sectional view of the telescopic head of the present invention.

[0034] Figure 6 This is a schematic diagram of the structure of the second press-fitting assembly of the present invention.

[0035] Figure 7 This is a diagram showing the installation structure of the first clamping plate and the second clamping plate of the present invention.

[0036] Figure 8 This is a diagram of the mounting structure of the first clamping plate of the present invention.

[0037] Figure 9 This is a structural diagram of the welding device of the present invention.

[0038] The reference numerals used in the attached figures are as follows:

[0039] Frame 1; First mounting bracket 2; First vertical drive assembly 21; First horizontal drive assembly 22; Mounting block 23; Pressing head 24; Pressing block 25; Fixed panel 26; Lifting block 27; Pneumatic clamping block 28; First pressing assembly 3; First fixed base assembly 4; First moving module 41; First moving plate 42; Rotating seat 43; Positioning column 44; First limiting side plate 45; Second limiting side plate 46; Telescopic head 47; Protrusion 471; Connecting rod 48; Connecting block 49; Second mounting bracket 5; Second pressing assembly 6 Second vertical drive assembly 61; second pressure head 62; second clamping assembly 63; limiting groove 64; lifting plate 65; second fixed seat assembly 7; second moving module 71; second moving plate 72; second rotating seat 73; receiving platform 74; limiting side plate 75; first clamping plate 76; first drive component 761; extension part 77; limiting post 78; second clamping plate 79; second drive component 791; welding device 8; moving frame 81; welding head 82; unloading claw 9; large connector 91; small connector 92; solenoid valve 93. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings.

[0041] like Figure 1-9 As shown, this invention discloses a welding and assembly equipment for an oil tank isolation valve, comprising:

[0042] Rack 1:

[0043] The first pressing device includes a first mounting frame 2, on which a first pressing component 3 that can move up and down is provided, and a first fixing seat component 4 is provided on the lower side of the first pressing component 3;

[0044] The second pressing device includes a second mounting frame 5, on which a second pressing assembly 6 that can move up and down is provided, and a second fixing seat assembly 7 is provided on the lower side of the second pressing assembly 6.

[0045] The welding device 8 includes a movable frame 81, on which a welding head 82 is provided. The welding head 82 moves on the movable frame 81 to the first pressing device and the second pressing device for welding.

[0046] The advantage of this invention is that by setting up a first pressing device and a second pressing device to complete the pressing of the entire product in two stages, and automatically welding after each pressing, manual handling is reduced, and the force, displacement, welding path and parameters of each pressing are strictly in accordance with the preset standards. This greatly improves the overall assembly accuracy and product qualification rate of the oil tank isolation valve and increases processing efficiency.

[0047] In some implementation schemes, such as Figure 2As shown, the first mounting frame 2 is provided with a first vertical drive component 21 and a first horizontal drive component 22. The first vertical drive component 21 drives the first horizontal drive component 22 to move up and down, and the first horizontal drive component 22 drives the first pressing component 3 to move horizontally. The bottom of the first mounting frame 2 is fixedly mounted on the frame 1, and a fixed panel 26 is mounted on its side. The fixed panel 26 is provided with a vertically mounted guide rail and a slider. A lifting block 27 is mounted on the slider. The first vertical drive component 21 can be an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, etc., and its output end is connected to the lifting block 27 to drive the lifting block 27 to move. The first horizontal drive component 22 can be a pneumatic cylinder, and its main body is fixedly mounted on the lifting block 27. Its output end is connected to a mounting block 23. The mounting block 23 is located at the bottom of the lifting block 27 and is also connected to the lifting block 27 through a guide rail and a slider, so that the mounting block 23 can move horizontally. The pressing head 24 is located at the bottom of the mounting block 23 and is connected to the mounting block through a support plate.

[0048] Furthermore, a pneumatic clamping block 28 is installed on the side of the pressing head 24. The clamping is driven by a clamping cylinder, etc. Before pressing, the small connector 92 on the product is first placed in the receiving groove in the pressing block 25. Then, the small connector 92 is clamped by the pneumatic clamping block 24 to ensure that the small connector 92 does not move in the receiving groove before pressing. During pressing, the large connector 91 of the product is first placed on the first fixed component, and then the pressing head 24 is pressed down to connect the large connector 91 and the small connector 92.

[0049] A pressing block 25 is also provided on the side of the support plate. Before pressing the small connector 92, the large spring and nozzle are first placed into the large connector 91. The first vertical drive assembly 21 drives the pressing block 25 to extend into the inner side of the large connector 91. The nozzle is pressed into place first. The upper side of the pressing block 25 is connected to the support plate through a force sensor to control the pressing force and pressing position, ensuring that the nozzle is pressed into place. Then the small connector 92 is pressed in.

[0050] Furthermore, such as Figure 3-5 As shown, the first fixed base assembly 4 includes: a first moving module 41, a first moving plate 42, a rotating base 43, and a positioning post 44. The first moving module 41 is mounted on the frame 1. The first moving module 41 can be a screw motor module to drive the first moving plate 42 to move between the welding device 8 and the first pressing device. The rotating base 43 is mounted on the first moving plate 42. The rotating base 43 is connected to a driving component to drive its rotation. The driving component can be a motor. The entire rotating base 43 can be rotatably mounted. Its specific structure can be realized through various structures in the prior art. The positioning post 44 is mounted on the rotating base 43 and is used to limit the product. When processing the product, the large connector 91 is placed on the positioning post 44. Since the large connector 91 is hollow, the positioning post 44 plays a positioning role.

[0051] Furthermore, a first limiting side plate 45 and a second limiting side plate 46 are installed on both sides of the positioning column 44. The top of the second limiting side plate 46 is provided with an arc-shaped groove. Since the large connector 91 has a branch pipe, the arc-shaped groove is used to limit the branch pipe, ensuring that the product is placed stably while preventing the product from rotating during processing, so that the product can only be rotated by the rotating seat 43.

[0052] The bottoms of the first limiting side plate 45 and the second limiting side plate 46 are fixedly mounted on the rotating base 43. The sides of the first limiting side plate 45 and the second limiting side plate 46 are symmetrically provided with telescopic heads 47 for limiting the product. The telescopic heads can retract into the first and second limiting side plates. A connecting rod 48 is connected to the telescopic head 47, and a connecting block 49 is provided at the other end of the connecting rod 48. The connecting rod 48 is fitted with a spring and can move horizontally. One end of the connecting rod 48 is fixedly mounted to the telescopic head 47, and the main body passes through the first limiting side plate 45 or the second limiting side plate 46. Simultaneously, the connecting block 49 is fixedly mounted on the outside of the first limiting side plate 45 or the second limiting side plate 46, also serving as a connecting block. The connecting rod 48 has a through hole for movement, and the tail of the connecting rod 48 has a stop block. Since a spring is sleeved on the connecting rod 48, the telescopic block is in the extended state under the action of the elastic force. When picking up or putting down the product, the telescopic block can retract under the action of external force, and the connecting rod moves horizontally, which facilitates the placement and removal of the product. When the product is placed on the positioning post 44 and is in place with the arc groove, the telescopic head 47 automatically extends under the action of the spring's restoring force. The protrusion 471 at its end engages with the edge of the product's large connector 91 or the preset groove structure to limit the product and effectively prevent the product from shifting or shaking due to force or vibration during subsequent pressing and welding processes, thus ensuring processing accuracy.

[0053] In some implementation schemes, such as Figure 6-8 As shown, the second fixed base assembly 7 includes: a second moving module 71, a second moving plate 72, a second rotating base 73, and a receiving platform 74. The second moving plate 72 is mounted on the second moving module 71. The second moving module 71 can be a lead screw motor module or a pulley synchronous belt module. The second rotating base 73 is mounted on the second moving plate 72. The structure of the second rotating base is the same as that of the rotating base 43. It is also driven to rotate by a motor. The receiving platform 74 is fixedly mounted on the second rotating base 73. As the second rotating base 73 moves, the receiving platform 74 is provided with a positioning hole for limiting the product. The solenoid valve 93 on the product is placed in the positioning hole to fix the position of the product.

[0054] A limiting side plate 75 and a first clamping plate 76 are provided on the receiving platform 74. The limiting side plate 75 is fixedly installed. The first clamping plate 76 is connected to a first driving component 761, which drives the first clamping plate 76 to move toward the limiting side plate 75, thereby clamping the part solenoid valve 93 on the product. The first driving component 761 can be a cylinder, the main body of which is fixedly installed on the receiving platform 74. A guide rail and a slider are also installed on the rotating seat 43. The slider is connected to the first clamping plate 76. The output end of the cylinder is connected to the first clamping plate 76, driving the first clamping plate 76 to move toward the positioning hole. The first clamping plate 76 is equipped with symmetrically arranged protrusions 77. A limiting post 78 is fixed at the end of the product solenoid valve 93. The limiting post 78 is horizontally positioned and faces the limiting side plate 75. A limiting groove 64 for limiting the side of the solenoid valve 93 is provided on the limiting side plate 75. A through hole is provided in the limiting groove 64, and its position corresponds to the limiting post 78. The base of the solenoid valve 93 has a through hole for fixing, and its position corresponds to the through hole on the limiting groove 64. When the solenoid valve 93 is placed in place, the first driving member 761 moves. At this time, the entire first clamping plate 76 clamps the solenoid valve 93. At the same time, the limiting post 78 extends into the through hole on the base of the solenoid valve 93 to limit the product, so that the product will not move during the pressing and rotation welding process.

[0055] The limiting side plate is equipped with a movable second clamping plate 79. The second clamping plate 79 is connected to a second driving member 791. The second driving member 791 drives the second clamping plate 79 to move horizontally to clamp the product. The second driving member 791 is fixedly installed on the rear side of the limiting side plate and connected to the second clamping plate 79. It can be a cylinder. The second clamping plate 79 is located on the side of the first clamping plate 76 and clamps the product from the side, cooperating with the first clamping plate 76 to fix the product.

[0056] Furthermore, the second pressing assembly 6 includes: a second vertical drive assembly 61, on which a second pressing head 62 and a second clamping assembly 63 are mounted; a second mounting frame 5 is fixedly mounted on the frame 1; the second vertical drive assembly 61 can be a pneumatic cylinder or an electric cylinder, etc., mounted on the second mounting frame 5; the mounting frame is also provided with vertically mounted guide rails and sliders, on which a lifting plate assembly 65 is mounted; the output end of the second vertical drive assembly 61 is connected to the lifting plate assembly 65, driving the lifting plate assembly 65 to rise and fall; the second pressing head 62 is fixedly mounted to the lifting plate assembly 65, and rises and falls with the lifting plate assembly 65. The bottom of the second pressure head 62 is provided with a receiving groove, and a limiting groove 64 is provided on the side of the receiving groove. The receiving groove is used to receive the small connector 92 and the large connector 91 that have been pressed and welded in the first pressing assembly 3. The limiting groove 64 is used to limit the branch pipe on the product. The second clamping assembly 63 is used to fix the product in the second pressure head 62. The structure of the second clamping assembly 63 is the same as that of the pneumatic clamping component. It has an openable and closable gripper. When the product is placed in place, the gripper automatically closes and clamps the large connector 91 and the small connector 92 that have been welded in the first step and placed in the receiving groove.

[0057] In some implementation schemes, such as Figure 9 As shown, the movable frame 81 straddles the upper side of the first movable module 41 and the second movable module 71, and a third movable module is installed thereon. This can be a lead screw motor module or a pulley synchronous belt module. The welding head 82 can be a laser welding head. As the third movable module moves, the direction of movement is perpendicular to the installation direction of the first movable module 41.

[0058] A feeding conveyor belt is also installed on the frame 1. The first moving module 41 is also equipped with a feeding gripper 9 that can be raised and lowered. The raising and lowering is achieved by an electric cylinder or a linear module, and the clamping action is achieved by a clamping cylinder. The finished welded product is clamped and fed onto the feeding conveyor belt to complete the feeding.

[0059] In the processing, firstly, the large connector 91 is placed on the positioning post 44, and a large spring and a nozzle are placed inside the large connector 91. The small connector 92 is placed inside the upper pressing head 24, and the pneumatic clamping block 28 clamps the small connector 92. At this time, the pressing block 25 located on the side of the pressing head 24 moves toward the positioning post 44 to press the nozzle inside the large connector 91 into place. Then, the lifting block 27 is lifted, and the first horizontal pressing assembly moves so that the pressing head 24 faces the large connector 91. Then, under the drive of the first vertical drive assembly 21, it is pressed down to press the small connector 92 into the large connector 91, completing the first pressing.

[0060] Then the first welding work is carried out. After the product is pressed, it is moved to the welding device 8 by the first moving module 41. The welding head 82 faces the connection between the large connector 91 and the small connector 92 and welding begins. During the welding process, the rotating seat 43 rotates until the welding is completed around the product. Then the first moving module 41 moves the product to the loading position.

[0061] The product that has completed the first welding is placed in the second pressure head 62 and clamped by the second clamping assembly 63. Then, the solenoid valve 93 of the product is placed in the receiving platform 74. A small spring and a sealing cap are placed inside the solenoid valve 93. The first clamping plate 76 and the second clamping plate 79 on the side of the receiving platform 74 clamp the solenoid valve 93. The second vertical drive device moves vertically to press the large connector 91 and the solenoid valve 93 together, completing the press-fitting of the entire valve. Then, the second moving module 71 moves to transfer the press-fitted large connector 91 and solenoid valve 93 to the welding device 8. At this time, the welding head 82 moves to the corresponding position under the drive of the third moving module and then performs rotational welding. After welding, the material is automatically unloaded by the unloading claw 9. The entire oil tank isolation valve is press-fitted and welded by one machine, which improves assembly efficiency, ensures assembly quality, reduces manual handling, and reduces labor intensity.

[0062] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this invention, and these all fall within the protection scope of this invention.

Claims

1. A welding and assembly equipment for an oil tank isolation valve, characterized in that, include: Rack (1): The first pressing device includes a first mounting frame (2), on which a first pressing component (3) that can move up and down is provided, and a first fixing seat component (4) is provided on the lower side of the first pressing component (3). The second pressing device includes a second mounting bracket (5), on which a second pressing assembly (6) that can move up and down is provided, and a second fixing seat assembly (7) is provided on the lower side of the second pressing assembly (6). The welding device (8) includes a movable frame (81) on which a welding head (82) is provided, and the welding head (82) moves and welds on the movable frame (81).

2. The welding and assembly equipment for the oil tank isolation valve according to claim 1, characterized in that, The first mounting bracket (2) is provided with a first vertical drive component (21) and a first horizontal drive component (22). The first vertical drive component (21) drives the first horizontal drive component (22) to move up and down, and the first horizontal drive component (22) drives the first pressing component (3) to move horizontally.

3. The welding and assembly equipment for the oil tank isolation valve according to claim 2, characterized in that, The first press-fit assembly (3) includes a mounting block (23) connected to the output end of the first horizontal drive assembly (22), a press-fit head (24) connected to the bottom of the mounting block (23), and a press-fit block (25) mounted on the side of the mounting block (23).

4. The welding and assembly equipment for the oil tank isolation valve according to claim 1, characterized in that, The first fixed base assembly (4) includes: a first moving module (41), a first moving plate (42), a rotating base (43), and a positioning column (44). The first moving module (41) is mounted on the frame (1). The first moving plate (42) moves along the first moving module (41). The rotating base (43) is mounted on the first moving plate (42). The rotating base (43) is connected to a driving component to drive its rotation. The positioning column (44) is mounted on the rotating base (43) for limiting the product.

5. The oil tank isolation valve welding and assembly equipment according to claim 4, characterized in that, The positioning post (44) is equipped with a first limiting side plate (45) and a second limiting side plate (46) on both sides. The top of the second limiting side plate (46) is provided with an arc groove. The first limiting side plate (45) and the second limiting side plate (46) are symmetrically provided with telescopic heads (47) for limiting the product. The telescopic head (47) is connected to a connecting rod (48). The other end of the connecting rod (48) passes through the connecting block (49). The connecting rod (48) is fitted with a spring and can move horizontally.

6. The welding and assembly equipment for the oil tank isolation valve according to claim 5, characterized in that, The telescopic head (47) is provided with a protrusion (471) facing the positioning post (44), the protrusion (471) being used to prevent the product from moving up and down.

7. The welding and assembly equipment for the oil tank isolation valve according to claim 1, characterized in that, The second fixed base assembly (7) includes: a second moving module (71), a second moving plate (72), a second rotating base (73), and a receiving platform (74). The second moving plate (72) is mounted on the second moving module (71), the second rotating base (73) is mounted on the second moving plate (72), and the receiving platform (74) is mounted on the second rotating base (73). The receiving platform (74) is provided with positioning holes for limiting the product.

8. The welding and assembly equipment for the oil tank isolation valve according to claim 7, characterized in that, The receiving platform (74) is provided with a limiting side plate (75) and a first clamping plate (76). The first clamping plate (76) is connected to a first driving member (761) for driving the first clamping plate (76) to move toward the limiting side plate (75). The first clamping plate (76) is provided with symmetrically arranged protrusions (77), and the end of the protrusions (77) is provided with a limiting post (78).

9. The welding and assembly equipment for the oil tank isolation valve according to claim 1, characterized in that, The second pressing assembly (6) includes: a second vertical drive assembly (61), on which a second pressing head (62) and a second clamping assembly (63) are mounted. The bottom of the second pressing head (3) is provided with a receiving groove, and a limiting groove (64) is opened on the side of the receiving groove. The second clamping assembly (63) is used to fix the product in the second pressing head (3).

10. The welding and assembly equipment for the oil tank isolation valve according to claim 8, characterized in that, The limiting side plate (75) is equipped with a movable second clamping plate (79), and the second clamping plate (79) is connected to a second driving member (791). The second driving member (791) drives the second clamping plate (79) to move horizontally to clamp the product.

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