Petroleum separator shell welding device

Abstract

The invention provides a petroleum separator shell welding device, and relates to the technical field of welding equipment, the petroleum separator shell welding device comprises a bearing concave frame and a positioning clamping assembly; a positioning and clamping assembly is arranged in the middle of the top of the bearing concave frame and is characterized in that the positioning and clamping assembly comprises a fixed base frame fixedly connected to the middle of the top of the bearing concave frame, and reinforcing angle blocks are fixedly connected to the four corners of the bottom of the fixed base frame; the fixing support is fixedly connected to the top of the fixing base frame, and through the arrangement of the positioning and clamping assembly, on one hand, the stability of a shell in the welding process can be guaranteed, the quality problems such as weld joint deviation and welding deformation caused by displacement are effectively avoided, and the welding precision is guaranteed from the source; and on the other hand, rapid adaptation can be conducted according to the sizes and specifications of separator shells of different models, welding operation of products of multiple models can be completed without replacing tools, the model limitation of traditional equipment is broken through, and the universal performance and production flexibility of the device are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a welding device for an oil separator shell. Background Art

[0002] In the petroleum industry, oil separators are critical equipment, and the quality of their casing welds plays a crucial role in determining their performance and reliability. With the continued expansion of oil extraction and processing, the demand for oil separators is growing, and their sizes, specifications, and shapes are becoming increasingly diverse. This places higher demands on oil separator casing welding equipment, requiring not only guaranteed weld quality but also efficient welding capabilities for casings of varying sizes and specifications.

[0003] For example, patent number CN219925103U discloses a "shell welding device" that uses different-sized interference grooves to position shells of different specifications. While this design takes size compatibility into account to a certain extent, the size of the bottom support plate of the device is fixed. When the bottom size of the shell to be welded does not match the fixed support plate, even if the interference groove has a certain positioning function, it is still difficult to ensure that the shell is accurately positioned. For smaller shells, since their bottoms cannot fully contact the support plate, they lack stable support during insertion into the interference groove, and are prone to deviation and shaking, making it difficult to accurately fall into the predetermined position. For larger shells, due to the specifications of the support plate, the bottom edge of the shell exceeds the load-bearing range, leaving most of the area suspended. The support plate cannot provide effective support, causing it to easily slip during the lifting process, and the two sets of shells cannot be stuck in the interference groove. The problems existing in the above patents not only lead to deviations in the welding position, affecting the quality of the weld, but also may cause displacement of the shell during welding due to instability, causing serious problems such as welding arc deviation and weld fracture.

[0004] Therefore, it is of great practical significance to develop a welding device for adapting the shell clamping and positioning. Summary of the Invention

[0005] In view of this, the present invention provides a welding device for an oil separator shell, which can ensure the stability of the shell during the welding process by setting a positioning clamping component, effectively avoid quality problems such as weld offset and welding deformation caused by displacement, and ensure welding accuracy from the source; on the other hand, it can be quickly adapted according to the size specifications of separator shells of different models, and can complete welding operations of multiple models of products without changing tooling, breaking the model restrictions of traditional equipment, significantly improving the general performance and production flexibility of the device, and providing technical support for the efficient production of oil equipment manufacturing; through the setting of the linkage component, it can be After the shell is fixed, it is driven to rotate smoothly, so that the seam between the shell and the end cover enters the operating range of the welding gun in sequence as it rotates, breaking the limitation of traditional welding that requires adjusting the welding gun position. The workpiece rotation replaces the movement of the welding gun, so that the welding gun always maintains the best welding angle, easily covering each point of the circumferential seam welding, ensuring uniform and continuous welds, and avoiding welding deviations caused by displacement of the welding gun; through the setting of the position adjustment structure, the position of the welding gun can be flexibly adjusted to meet the welding requirements of welds at different positions of the oil separator shell, which greatly improves the adaptability of welding and effectively avoids the problem of inadequate welding caused by the inability to adjust the position of the welding gun.

[0006] The present invention provides a petroleum separator shell welding device, which specifically includes: a bearing recess and a positioning clamping assembly; A positioning and clamping assembly is provided at the middle of the top of the bearing recess, wherein the positioning and clamping assembly comprises the following components: A fixed base frame is fixedly connected to the middle of the top of the bearing recessed frame, and reinforced corner blocks are fixedly connected to the four corners of the bottom of the fixed base frame; The fixed bracket is fixedly connected to the top of the fixed base. There are four groups of fixed brackets. A longer adjustment tube is provided between the two middle groups of fixed brackets. The fixed brackets at both ends are provided with the same adjustment tube. The adjustment tube is fixedly connected to a fixed convex tube. There are three groups of fixed convex tubes arrayed respectively. At the same time, a first threaded hole is opened on the fixed convex tube. A propulsion screw is meshedly installed in the first threaded hole, and one end of the top of the propulsion screw is fixedly connected to the outer connecting handwheel; The positioning clamping plate is arranged inside the adjusting carrier tube. One end of the positioning clamping plate close to the advancing screw is fixedly connected to a connecting shaft cap. The inside of the connecting shaft cap is fixedly connected to a bearing, and the other end of the advancing screw is fixedly connected to the inner shaft of the bearing. At the same time, both ends of the positioning clamping plate are fixedly connected to anti-rotation rods.

[0007] In at least some embodiments, a linkage assembly is provided on the fixed base frame, and the linkage assembly includes a dual-axis motor, a driving belt shaft, a rotating bracket and a driving gear. A dual-axis motor is fixedly installed in the middle of the bottom of the fixed base frame, and the two ends of the bottom of the fixed base frame are fixedly connected to the rotating bracket. The driving end of the dual-axis motor is fixedly connected to the driving belt shaft, and the driving belt shaft is rotatably installed in the rotating bracket. At the same time, four sets of driving gears are fixedly connected to the outside of the driving belt shaft.

[0008] In at least some embodiments, the outer side of the adjusting carrier is fixedly connected to a driven gear, which is rotatably engaged with the driving gear. The outer side of the adjusting carrier is fixedly connected to a rotating convex ring, and a rotating ring groove is provided on the inner side wall of the fixed bracket. The rotating convex ring is rotatably installed in the rotating ring groove.

[0009] In at least some embodiments, a position adjustment structure is provided on the supporting recess, and the position adjustment structure includes a mounting frame, a screw rod, a guide rod and a drive motor. The top two ends of the supporting recess are fixedly connected to the mounting frame, and a screw rod is rotatably installed inside the mounting frame. One end of the screw rod passes through the mounting frame and is fixedly connected to the drive end of the outer drive motor, and guide rods are provided at the upper and lower ends of the screw rod.

[0010] In at least some embodiments, a movable belt block is provided inside the mounting frame, and a second threaded hole and a guide sliding hole are provided on the movable belt block, and the second threaded hole is rotatably engaged with the screw rod.

[0011] In at least some embodiments, the top of the mounting frame is fixedly connected to a fixed vertical frame, the bottom sides of the fixed vertical frame are fixedly connected to support angle blocks between the movable belt blocks, the two sides of the fixed vertical frame are fixedly connected to fixed convex plates, and fixed vertical rods are fixedly connected between the fixed convex plates.

[0012] In at least some embodiments, an electric push rod is fixedly installed on the top of the fixed vertical frame, and the driving end of the electric push rod passes through the fixed vertical frame and is fixedly connected to the adjusting slider. Extension ear plates are fixedly connected on both sides of the adjusting slider, and movable sliding holes are opened on the extension ear plates. At the same time, the extension ear plates pass through the through grooves and are slidably installed on the fixed vertical rod.

[0013] In at least some embodiments, a connecting cross frame is fixedly connected between the adjusting sliders, a fixed support block is fixedly connected to the middle of the connecting cross frame, a fixed hinge is fixedly connected to the bottom of the fixed support block, and a connecting arc frame is fixedly connected to the outer side of the fixed hinge.

[0014] In at least some embodiments, the fixed hinge is hinged to the adjusting hinge rod through a hinge pin, a fastening nut is engaged and installed on the outer end of the hinge pin, and limiting protrusions are fixedly connected to both sides of the fixed hinge, and the limiting protrusions are arranged between the fixed hinge and the connecting arc frame, and the bottom end of the adjusting hinge rod is fixedly connected to a mounting base.

[0015] In at least some embodiments, the mounting bracket mounts a welding gun.

[0016] The oil separator shell welding device provided by the present invention has the following beneficial effects: 1. The positioning and clamping assembly ensures the stability of the shell during the welding process, effectively avoiding quality problems such as weld offset and welding deformation caused by displacement, and ensuring welding accuracy from the source. On the other hand, it enables rapid adaptation according to the size specifications of separator shells of different models, and can complete welding operations for multiple models of products without changing tooling, breaking the model restrictions of traditional equipment, significantly improving the universal performance and production flexibility of the device, and providing technical support for efficient production of petroleum equipment manufacturing.

[0017] 2. Through the setting of the linkage component, the shell can be driven to rotate smoothly after being fixed, so that the joint between the shell and the end cover can enter the operating range of the welding gun in sequence as it rotates, breaking the limitation of traditional welding that requires adjusting the welding gun position. By rotating the workpiece instead of moving the welding gun, the welding gun always maintains the optimal welding angle, easily covering every point of the circumferential seam welding, ensuring uniform and continuous welds, and avoiding welding deviations caused by welding gun displacement.

[0018] 3. Through the setting of the position adjustment structure, the position of the welding gun can be flexibly adjusted to meet the welding requirements of welds at different positions of the oil separator shell, which greatly improves the adaptability of welding and effectively avoids the problem of inadequate welding caused by the inability to adjust the position of the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0020] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached figure: Figure 1 Shows a schematic diagram of the overall structure according to the present invention; Figure 2 It shows a schematic structural diagram of the positioning and clamping assembly and the linkage assembly according to the present invention; Figure 3 It shows a schematic structural diagram of the positioning and clamping assembly according to the present invention; Figure 4 It shows a schematic diagram of the disassembled structure of some components of the positioning and clamping assembly according to the present invention; Figure 5 It shows a schematic diagram of the linkage assembly structure according to the present invention; Figure 6 It shows a schematic diagram of the structure of some components of the linkage assembly according to the present invention; Figure 7 It shows a schematic structural diagram of a moving component in a position adjustment structure according to the present invention; Figure 8 It shows a schematic structural diagram of the up and down adjustment components in the position adjustment structure according to the present invention; Figure 9 It shows a schematic structural diagram of some components of the position adjustment structure according to the present invention; Reference Signs List 1. Load-bearing recessed frame; 2. Positioning and clamping components; 201, fixed base frame; 2011, reinforced corner blocks; 202, fixing bracket; 2021, adjusting carrier tube; 2022, fixing convex tube; 2023, first threaded hole; 203, advancing screw; 2031, connecting hand wheel; 204, positioning clamping plate; 2041, connecting shaft cap; 2042, bearing; 2043, anti-rotation rod; 3. Linkage components; 301, dual-axis motor; 3011, drive belt shaft; 3012, rotating bracket; 3013, drive gear; 302, driven gear; 3021, rotating convex ring; 3022, rotating ring groove; 4. Position adjustment structure; 401, mounting frame; 4011, screw rod; 4012, guide rod; 4013, drive motor; 402, moving belt block; 4021, second threaded hole; 4022, guide sliding hole; 403, fixed vertical frame; 4031, supporting corner block; 4032, fixed convex plate; 4033, fixed vertical rod; 404, electric push rod; 4041, adjustment slider; 4042, extension ear plate; 4043, movable sliding hole; 4044, through slot; 405, connecting cross frame; 4051, fixing support block; 4052, fixing hinge frame; 4053, connecting arc frame; 406, adjusting hinge rod; 4061, hinge pin; 4062, fastening nut; 4063, limiting cam; 4064, mounting base; 407. Welding gun. DETAILED DESCRIPTION

[0022] Example 1: Please refer to Figures 1 to 9 : The present invention provides a welding device for an oil separator housing, comprising: a bearing recess 1 and a positioning clamping assembly 2; A positioning and clamping assembly 2 is provided at the top middle of the supporting recess 1, and is characterized in that the positioning and clamping assembly 2 includes the following components: The fixed base frame 201 is fixedly connected to the middle of the top of the supporting recessed frame 1, and the four corners of the bottom of the fixed base frame 201 are fixedly connected with reinforcement corner blocks 2011; The fixed brackets 202 are fixedly connected to the top of the fixed base 201. There are four groups of fixed brackets 202. A longer adjustment cylinder 2021 is provided between the two middle groups of fixed brackets 202. The fixed brackets 202 at both ends are provided with identical adjustment cylinders 2021. The adjustment cylinders 2021 are fixedly connected to fixed protrusions 2022. There are three groups of fixed protrusions 2022 arranged in an array. At the same time, the fixed protrusions 2022 are provided with first threaded holes 2023. The advancing screw rod 203 is meshedly installed in the first threaded hole 2023, and one end of the top of the advancing screw rod 203 is fixedly connected to the outer connecting hand wheel 2031; The positioning clamping plate 204 is arranged inside the adjustment carrier 2021. One end of the positioning clamping plate 204 close to the advancing screw 203 is fixedly connected to the connecting shaft cap 2041. The interior of the connecting shaft cap 2041 is fixedly connected to the bearing 2042, and the other end of the advancing screw 203 is fixedly connected to the inner shaft of the bearing 2042. At the same time, the two ends of the positioning clamping plate 204 are fixedly connected to the anti-rotation rod 2043.

[0023] By placing the main body of the shell in a longer adjustment cylinder 2021, the two ends of the shell body are placed on the outside of the adjustment cylinder 2021, and then by twisting the connecting hand wheel 2031, it drives the push screw 203 to rotate, and the push screw 203 engages and moves in the first threaded hole 2023, so that it drives the positioning clamping plate 204 to move, so that it clamps the shell body in the center, and at the same time, the shell bodies of different sizes can be clamped and fixed, and then the end covers of the shell body are placed on both sides and clamped and fixed in the same way so that the welded part of the end cover is aligned with the shell body, and then wait for welding.

[0024] Example 2: Based on Example 1, Figure 5 and Figure 6 As shown, a linkage assembly 3 is provided on the fixed base 201, and the linkage assembly 3 includes a dual-axis motor 301, a driving belt shaft 3011, a rotating bracket 3012 and a driving gear 3013. The dual-axis motor 301 is fixedly installed in the middle of the bottom of the fixed base 201, and the two ends of the bottom of the fixed base 201 are fixedly connected to the rotating bracket 3012. The driving end of the dual-axis motor 301 is fixedly connected to the driving belt shaft 3011, and the driving belt shaft 3011 is rotatably installed in the rotating bracket 3012. At the same time, four groups of driving gears 3013 are fixedly connected to the outer side of the driving belt shaft 3011.

[0025] The outer side of the adjustment carrier 2021 is fixedly connected with a driven gear 302, which is rotatably engaged with the driving gear 3013. The outer side of the adjustment carrier 2021 is fixedly connected with a locking convex ring 3021. The inner side wall of the fixed bracket 202 is provided with a rotating ring groove 3022, and the locking convex ring 3021 is rotatably installed in the rotating ring groove 3022.

[0026] By driving the dual-axis motor 301, the driving belt shaft 3011 is driven to rotate, the driving belt shaft 3011 drives the driving gear 3013 to rotate, the driving gear 3013 engages the driven gear 302 to rotate, and the driven gear 302 drives the adjustment carrier 2021 to rotate, and then drives the outer shell and the end cover to rotate together, so that the gap is welded.

[0027] Example 3: Based on Example 1 and Example 2, Figures 7 to 9 As shown, a position adjustment structure 4 is provided on the supporting recess 1, and the position adjustment structure 4 includes a mounting frame 401, a screw rod 4011, a guide rod 4012 and a driving motor 4013. The top two ends of the supporting recess 1 are fixedly connected with the mounting frame 401, and the internal rotation of the mounting frame 401 is rotatably installed with a screw rod 4011. One end of the screw rod 4011 passes through the mounting frame 401 and is fixedly connected to the driving end of the outer driving motor 4013. Guide rods 4012 are provided at the upper and lower ends of the screw rod 4011.

[0028] A moving belt block 402 is provided inside the mounting frame 401 . A second threaded hole 4021 and a guide sliding hole 4022 are formed on the moving belt block 402 . The second threaded hole 4021 is rotatably engaged with the screw rod 4011 .

[0029] The top of the mounting frame 401 is fixedly connected to a fixed vertical frame 403, the bottom two sides of the fixed vertical frame 403 are fixedly connected to the movable belt block 402 with support angle blocks 4031, the two sides of the fixed vertical frame 403 are fixedly connected to fixed convex plates 4032, and fixed vertical rods 4033 are fixedly connected between the fixed convex plates 4032.

[0030] An electric push rod 404 is fixedly installed on the top of the fixed vertical frame 403. The driving end of the electric push rod 404 passes through the fixed vertical frame 403 and is fixedly connected to the adjusting slider 4041. Extension ear plates 4042 are fixedly connected on both sides of the adjusting slider 4041. Movable sliding holes 4043 are opened on the extension ear plates 4042. At the same time, the extension ear plates 4042 pass through the through slots 4044 and are slidably installed on the fixed vertical rod 4033.

[0031] A connecting cross frame 405 is fixedly connected between the adjusting sliders 4041 , a fixed support block 4051 is fixedly connected to the middle of the connecting cross frame 405 , a fixed hinge 4052 is fixedly connected to the bottom of the fixed support block 4051 , and a connecting arc frame 4053 is fixedly connected to the outer side of the fixed hinge 4052 .

[0032] The fixed hinge 4052 is hingedly connected to the adjusting hinge rod 406 through a hinge pin 4061, and a fastening nut 4062 is engaged and installed on the outer end of the hinge pin 4061. The two sides of the fixed hinge 4052 are fixedly connected with a limiting protrusion 4063, and the limiting protrusion 4063 is arranged between the fixed hinge 4052 and the connecting arc frame 4053. The bottom end of the adjusting hinge rod 406 is fixedly connected with a mounting base 4064.

[0033] The mounting bracket 4064 is mounted with the welding gun 407 .

[0034] By starting the driving motor 4013 to drive the screw rod 4011 to rotate, the screw rod 4011 rotates and engages with the second threaded hole 4021 on the moving belt block 402. However, the moving belt block 402 is guided by the upper limit of the guide rod 4012 through the guide slide hole 4022, so that the screw rod 4011 drives the moving belt block 402 to move, and the moving belt block 402 drives the fixed vertical frame 403 to move. The fixed vertical frame 403 drives the welding gun 407 to move and adjust through the connecting horizontal frame 405. Then, by starting the electric push rod 404, the adjusting slider 4041 is pushed up and down, so that the height position of the welding gun 407 can be adjusted. By loosening the fastening nut 4062, the angle of the adjusting hinge rod 406 can be changed through the hinge pin 4061, so that the angle of the welding gun 407 can be adjusted.

[0035] Specific usage and function of this embodiment: In the present invention, first, by placing the main body of the shell in a longer adjustment carrier 2021, the two ends of the shell body are placed on the outside of the adjustment carrier 2021, and then by twisting the connecting hand wheel 2031, it drives the push screw 203 to rotate, and the push screw 203 engages and moves in the first threaded hole 2023, so that it drives the positioning clamping plate 204 to move, so that it clamps the shell body in the center, and at the same time, the shell bodies of different sizes can be clamped and fixed, and then the end covers of the shell body are placed on both sides, and they are clamped and fixed in the same way so that the welded part of the end cover is aligned with the shell body, and then waiting for welding. On the one hand, it can ensure the stability of the shell during the welding process, effectively avoid quality problems such as weld offset and welding deformation caused by displacement, and ensure welding accuracy from the source; on the other hand, it can be quickly adapted according to the size specifications of the separator shells of different models, and the welding operation of multiple models of products can be completed without changing the tooling, breaking the model restrictions of traditional equipment and significantly improving the general performance and production flexibility of the device, and then by starting the drive motor 4013 drives the screw rod 4011 to rotate, and the screw rod 4011 rotates and engages with the second threaded hole 4021 on the movable belt block 402. However, the movable belt block 402 is guided by the upper limit of the guide rod 4012 through the guide slide hole 4022, so that the screw rod 4011 drives the movable belt block 402 to move, and the movable belt block 402 drives the fixed vertical frame 403 to move. The fixed vertical frame 403 drives the welding gun 407 to move to the top of the weld through the connecting cross frame 405, and then the electric push rod 404 is activated to push the adjustment slider 4041 downward to make it move the welding gun 407. 7 moves to the welding seam, and then drives the driving belt shaft 3011 to rotate by driving the dual-axis motor 301, and the driving belt shaft 3011 drives the driving gear 3013 to rotate, and the driving gear 3013 engages the driven gear 302 to rotate, and the driven gear 302 drives the adjustment carrier 2021 to rotate, and then drives the shell and the end cover to rotate together, and then the gap is welded by the welding gun 407. After welding one end, the driving motor 4013 and the screw rod 4011 are cooperated to move the welding gun 407 to the other end for welding, thereby completing the welding of the oil separator shell.

Claims

1. A welding device for an oil separator housing, comprising: Carrying recess and positioning clamping assembly; A positioning and clamping assembly is provided at the middle of the top of the bearing recess, wherein the positioning and clamping assembly comprises the following components: A fixed base frame is fixedly connected to the middle of the top of the bearing recessed frame, and reinforced corner blocks are fixedly connected to the four corners of the bottom of the fixed base frame; The fixed bracket is fixedly connected to the top of the fixed base. There are four groups of fixed brackets. A longer adjustment tube is provided between the two middle groups of fixed brackets. The fixed brackets at both ends are provided with the same adjustment tube. The adjustment tube is fixedly connected to a fixed convex tube. There are three groups of fixed convex tubes arrayed respectively. At the same time, a first threaded hole is opened on the fixed convex tube. A propulsion screw is meshedly installed in the first threaded hole, and one end of the top of the propulsion screw is fixedly connected to the outer connecting handwheel; The positioning clamping plate is arranged inside the adjusting carrier tube. One end of the positioning clamping plate close to the advancing screw is fixedly connected to a connecting shaft cap. The inside of the connecting shaft cap is fixedly connected to a bearing, and the other end of the advancing screw is fixedly connected to the inner shaft of the bearing. At the same time, both ends of the positioning clamping plate are fixedly connected to anti-rotation rods.

2. The oil separator housing welding device according to claim 1, characterized in that: The fixed base is provided with a linkage assembly, which includes a dual-axis motor, a driving belt shaft, a rotating bracket and a driving gear. The dual-axis motor is fixedly installed in the middle of the bottom of the fixed base, and the two ends of the bottom of the fixed base are fixedly connected to the rotating bracket. The driving end of the dual-axis motor is fixedly connected to the driving belt shaft, and the driving belt shaft is rotatably installed on the outside of the rotating bracket and is fixedly connected to four sets of driving gears.

3. The oil separator housing welding device according to claim 1, characterized in that: The outer side of the adjustment carrier is fixedly connected with a driven gear, which is rotatably engaged with the driving gear. The outer side of the adjustment carrier is fixedly connected with a locking convex ring. The inner side wall of the fixed bracket is provided with a rotating ring groove, and the locking convex ring is rotatably installed in the rotating ring groove.

4. The oil separator housing welding device according to claim 1, characterized in that: The supporting recess is provided with a position adjustment structure, which includes a mounting frame, a screw rod, a guide rod and a drive motor. The top two ends of the supporting recess are fixedly connected to the mounting frame, and a screw rod is rotatably installed inside the mounting frame. One end of the screw rod passes through the mounting frame and is fixedly connected to the driving end of the outer drive motor. Guide rods are provided at the upper and lower ends of the screw rod.

5. The oil separator shell welding device according to claim 4, characterized in that: A moving belt block is provided inside the mounting frame. A second threaded hole and a guide sliding hole are provided on the moving belt block. The second threaded hole is rotatably engaged with the screw rod.

6. The oil separator shell welding device according to claim 5, characterized in that: The top of the mounting frame is fixedly connected to a fixed vertical frame, the bottom two sides of the fixed vertical frame are fixedly connected to supporting angle blocks between the movable belt blocks, the two sides of the fixed vertical frame are fixedly connected to fixed convex plates, and fixed vertical rods are fixedly connected between the fixed convex plates.

7. The oil separator shell welding device according to claim 6, characterized in that: An electric push rod is fixedly installed on the top of the fixed vertical frame. The driving end of the electric push rod passes through the fixed vertical frame and is fixedly connected to the adjusting slider. The adjusting slider and the extending ear plate are provided with movable sliding holes. At the same time, the extending ear plate passes through the through slot and is slidably installed on the fixed vertical rod.

8. The oil separator shell welding device according to claim 7, characterized in that: A connecting cross frame is fixedly connected between the adjusting sliders, a fixed support block is fixedly connected to the middle of the connecting cross frame, a fixed hinge frame is fixedly connected to the bottom of the fixed hinge frame, and a connecting arc frame is fixedly connected to the outer side of the fixed hinge frame.

9. The oil separator housing welding device according to claim 8, characterized in that: The fixed hinge is hingedly connected to the adjusting hinge rod through a hinge pin, and a fastening nut is engaged and installed at one end of the outer side of the hinge pin. The two sides of the fixed hinge are fixedly connected to the limiting protrusions, and the limiting protrusions are arranged between the fixed hinge and the connecting arc frame. The bottom end of the adjusting hinge rod is fixedly connected to the mounting base.

10. The oil separator shell welding device according to claim 9, characterized in that: The mounting base is equipped with a welding gun.

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