A high-pressure gas filter integrated welding device

Abstract

The application relates to the technical field of welding. The application aims to provide a high-pressure gas filter integrated welding device. The device comprises a machine table, a conical table-shaped inner holder matched with the inner edge of the filter is arranged on the machine table in a transverse mode, a conical table-shaped outer holder matched with the outer edge of the filter is arranged on one side of the machine table, the outer holder is loaded on a sliding seat and can reciprocate along the direction of approaching or moving away from the inner holder, a partition plate extending along the length direction of the inner holder is detachably arranged on the surface of one side of the inner holder, a gap for the partition plate to pass through is arranged on the outer holder in the position opposite to the partition plate, a rack is arranged above the machine table, a movable platform capable of moving along the length and height directions is arranged on the rack, and a welding machine and a welding gun are loaded on the movable platform. The integrated design of the conical surface matching positioning, axial extrusion roundness correction and accurate alignment welding is adopted, and the high-efficiency and high-quality processing of the filter conical cylinder is realized.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and more specifically to an integrated welding device for a high-pressure gas filter. Background Technology

[0002] A high-pressure temporary gas filter (conical shape) is a core filtration device used in high-pressure gas transmission systems. Through its conical structure, it utilizes the flow of gas within the filter to separate solid and liquid components (such as condensate oil, moisture, and impurities) from the gas, thereby ensuring the cleanliness and safety of the gas transmission process. Its structure is as follows: Figure 1 As shown.

[0003] The main steps in its production process are as follows: 1. Material cutting and punching: Cut the steel plate into an arc-shaped sector and punch holes in the plate (the punching position is far away from the welding position to leave a safety margin); 2. Sintering: Lay two or more layers of woven mesh on the inner surface of the punched steel plate according to the filtration requirements, and sinter it after preliminary fixation by spot welding; 3. Rolling and welding: Roll the punched steel plate with sintered woven mesh into a cone on a rolling machine and weld the cone; 4. Weld an end plate to one end of the cone and a flange for installation to the other end; The product is obtained after subsequent pickling, polishing and other steps.

[0004] The following key technical challenges exist in the manufacturing process of conical cylinders for existing high-pressure gas temporary filters: First, the conical cylinder is prone to roundness deviation after initial rolling. Traditional tooling often relies on single support or simple clamping for positioning, making it difficult to achieve precise centering and roundness correction. This results in uneven weld gaps and excessive misalignment, affecting the quality of weld fusion. Second, weld positioning relies on manual alignment, which is inefficient and prone to human error. Subsequent adjustments to the weld posture are required, increasing labor intensity. Third, beveling requires a separate process. The rounded conical cylinder must be transferred to grinding equipment or manually ground with hand tools. This process fragmentation leads to low production efficiency and poor beveling dimension consistency, further affecting weld quality.

[0005] Therefore, there is an urgent need to develop an integrated device that combines rapid centering and alignment, weld positioning, beveling and welding to simplify production processes and improve the machining accuracy, efficiency and quality stability of conical cylinders. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated welding device for high-pressure gas filters that can achieve rapid positioning, rounding, and beveling.

[0007] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is: a high-pressure gas filter integrated welding device, including a machine base, wherein a frustum-shaped inner mold adapted to the inner edge of the filter is arranged laterally on the machine base, and a frustum-shaped outer mold adapted to the outer edge of the filter is arranged on one side of the machine base of the inner mold.

[0008] The outer tire is mounted on a sliding seat and can reciprocate in a direction that approaches or moves away from the inner tire; a partition plate extending along the length of the inner tire is detachably provided on one side of the inner tire, and a clearance opening for the partition plate to pass through is provided on the outer tire at a position opposite to the partition plate.

[0009] A frame is installed above the machine, and a motion platform capable of moving along the length and height directions is installed on the frame. The motion platform is equipped with a welding machine and a welding torch.

[0010] Preferably, one side surface of the inner tube is provided with a constriction side groove extending along the length direction of the inner tube; the side of the partition plate opposite to the surface of the inner tube is provided with a snap-fit ​​post adapted to the constriction side groove, and is snapped into the constriction side groove by the snap-fit ​​post.

[0011] Preferably, the edge of the partition plate near the snap-fit ​​post is provided with a bevel grinding groove extending along the length of the partition plate.

[0012] Preferably, the partition plate has a pull hole on its body.

[0013] Preferably, both the inner tube and the outer tube are capable of rotating about their respective axes.

[0014] Preferably, two support columns are symmetrically arranged on the machine base, and the shaft at one end of the inner tube is rotatably mounted on one support column through a rotary joint; a first synchronous pulley is provided on the shaft, a rotary motor is provided on the bottom surface of the machine base, and a second synchronous pulley is provided at the output end of the rotary motor and connected to the first synchronous pulley through a synchronous belt.

[0015] Preferably, the outer tire has ring ridges at both ends, and the top of the sliding seat has two C-shaped grooves with upward openings that cooperate with the ring ridges. The ring ridges at both ends of the outer tire are engaged in rotation with the sliding seat within the grooves.

[0016] Preferably, a lead screw and nut pair and a sliding guide rail are provided on the machine base at a position opposite to the sliding seat, and the sliding seat is mounted on the sliding guide rail and driven by the lead screw and nut pair.

[0017] Preferably, a sensor is provided on the end face of the inner tube opposite to the partition plate, and a sensor that cooperates with the sensor is provided on the support column located directly above the inner tube.

[0018] Preferably, the length of the inner tube is greater than the length of the filter cone section, and the length of the outer tube is less than the length of the filter cone section.

[0019] The beneficial effects of this invention are mainly reflected in the integrated design of "conical surface adaptation positioning + axial extrusion rounding + precise alignment welding", which enables efficient and high-quality processing of the filter cone.

[0020] During use, the pre-rolled conical blank is placed on the inner jig, aligning the weld seam of the conical blank with the partition plate on the inner jig. The partition plate provides pre-positioning of the weld seam. Centering and rounding: The outer jig on the sliding seat moves axially towards the inner jig until both clamp the conical blank. Through the contact and compression of their conical surfaces, the conical blank is centered, aligned, and rounded. Beveling and grinding: Weld alignment and preparation: If the weld position needs adjustment, the inner jig (or the entire jig) can be rotated to position the partition plate (and weld seam) in the preset welding posture. The partition plate is then removed to allow space for welding. Precision welding: Adjusting the length and height of the moving platform on the frame moves the welding machine and welding torch, aligning the welding torch with the weld seam on the conical blank. The welding machine is then started to complete the welding operation. Unloading: After welding, the outer jig is moved away from the inner jig, the finished conical blank is removed, and the partition plate is reinstalled, completing one operation.

[0021] This invention is achieved through:

[0022] 1. Precise centering and rounding ensures the accuracy of the welding foundation: By cooperating with the inner and outer jigs of the cone-shaped inner jigs that are adapted to the inner and outer edges of the cone cylinder, the axial extrusion of the outer jigs is used to achieve rapid centering and rounding of the cone cylinder, effectively eliminating the roundness deviation after rolling, ensuring uniform weld gap and meeting the standards for misalignment, and laying a structural foundation for high-quality welding.

[0023] 2. Highly efficient weld positioning, reducing human error: The detachable partition plate on the inner die extends axially and can be directly aligned with the weld seam to be welded on the conical cylinder, achieving pre-positioning of the weld seam; the clearance opening of the outer die avoids interference with the partition plate, further ensuring positioning accuracy, eliminating the need for repeated manual calibration, reducing human error, and improving the straightness of the weld seam.

[0024] 3. Process integration improves production efficiency: The device integrates centering and alignment, weld positioning and welding functions into one unit, eliminating the need to transfer the conical cylinder between multiple machines and simplifying the production process; with the movable motion platform and welding torch, it can quickly align the weld position, shorten the operation cycle and solve the problem of low efficiency caused by the fragmentation of traditional processes.

[0025] 4. Easy to operate and reduces labor intensity: The outer jig achieves automated axial movement through the sliding seat, and the motion platform drives the welding torch to complete flexible adjustment in length and height, reducing the amount of manual handling and adjustment work; the partition plate is designed to be detachable, which is convenient for clamping and removal without affecting subsequent welding operations, and the operation process is simple and efficient.

[0026] 5. Stable welding quality, meeting pressure requirements: Precise centering and weld positioning, combined with accurate welding torch alignment, ensures full fusion and regular weld formation, significantly improving weld strength and sealing performance, meeting the pressure resistance and leak prevention requirements of high-pressure gas filters, and ensuring equipment operation safety. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a temporary high-pressure gas filter;

[0028] Figure 2 This is a schematic diagram of the structure of the present invention;

[0029] Figure 3 for Figure 2 A schematic diagram of the left-side structure of the inner and outer tire fittings;

[0030] Figure 4 for Figure 2 Schematic diagram of the right side of the inner tube;

[0031] Figure 5 This is a schematic diagram of the partition plate structure;

[0032] Reference numerals: 1. Machine base; 2. Inner tube; 3. Outer tube; 4. Sliding seat; 5. Divider plate; 6. Clearance opening; 7. Frame; 8. Motion platform; 9. Closing side groove; 10. Snap-fit ​​post; 11. Grinding groove; 12. Hand pull hole; 13. Support column; 14. Shaft; 15. Rotary joint; 16. First synchronous pulley; 17. Rotary motor; 18. Second synchronous pulley; 19. Synchronous belt; 20. Ring ridge; 21. Slot; 22. Lead screw and nut pair; 23. Sliding guide rail; 24. Sensor; 25. Sensor. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 2-5 The present invention provides a detailed description of a specific embodiment of an integrated welding device for a high-pressure gas filter. This embodiment is only a preferred solution and is not intended to limit the scope of protection of the present invention.

[0034] I. Overall Structure of the Device

[0035] This integrated welding device for high-pressure gas filters aims to achieve rapid centering and alignment of the conical cylinder, weld positioning, beveling, and precise welding in a unified process. Its core structure includes a machine base 1, inner jig 2, outer jig 3, sliding seat 4, partition plate 5, frame 7, motion platform 8, and drive assembly. These components work together to complete the welding of the high-pressure gas filter conical cylinder. The specific structure is as follows:

[0036] 1. Machine base and supporting structure (e.g.) Figure 2 )

[0037] The machine base 1 is integrally machined from high-strength cast iron to ensure the overall rigidity and stability of the device and to avoid affecting the machining accuracy due to deformation of the machine base during welding. Two support columns 13 are symmetrically and vertically fixed on the machine base 1. The support columns 13 are welded from channel steel and reinforced with ribs at the top and middle. They are used to install the inner tube 2 and the sensing components to form a stable support frame.

[0038] 2. Inner tube structure and installation (combined) Figure 2 and Figure 4 )

[0039] The inner tube 2 has a frustum-shaped structure, and its taper and diameter are precisely matched with the inner wall dimensions of the high-pressure gas filter cone, ensuring a complete fit with the inner wall of the cone. The length of the inner tube 2 is set to be greater than the length of the filter cone section, so that both ends of the cone can be effectively supported after being fitted, improving positioning stability.

[0040] One end of the inner tube holder 2 has an integrally formed shaft 14, which is rotatably mounted on the left support column 13 via a rotary joint 15. The rotary joint 15 uses a high-precision ball bearing to reduce frictional resistance and coaxiality deviation during rotation. The end of the shaft 14 away from the inner tube holder 2 is fixedly fitted with a first synchronous pulley 16. A rotary motor 17 is fixed to the bottom surface of the machine base 1 via a motor mounting seat. The rotary motor 17 is a servo motor, and its output end is fixedly connected to a second synchronous pulley 18 via a key. The first synchronous pulley 16 and the second synchronous pulley 18 are connected by a synchronous belt 19 to achieve precise speed control of the inner tube holder 2.

[0041] like Figure 4 and Figure 5 As shown, the conical surface of the inner tube 2 has a constriction side groove 9 along the axial direction. The constriction side groove 9 has an isosceles trapezoidal groove, C-shaped groove, or other structures. The width and depth of the groove are designed to match the thickness of the partition plate 5 and the size of the snap-fit ​​post 10. Both ends of the groove penetrate through the axial end face of the inner tube 2, facilitating the insertion and removal of the partition plate 5. On the end face of the inner tube 2, a sensor 24 is fixed at the installation position corresponding to the partition plate 5. The sensor 24 is a magnetic induction block, used to cooperate with the sensor 25 to achieve precise positioning of the weld seam.

[0042] 3. Outer tire structure and installation (combined) Figure 2 and Figure 3 (As shown)

[0043] The outer fixture 3 is also a frustum-shaped structure with the same taper as the inner fixture 2. The inner wall diameter is adapted to the outer wall size of the high-pressure gas filter cone. The length of the outer fixture 3 is less than the length of the filter cone section to avoid obstructing the weld area of ​​the cone and ensure that the welding operation is carried out smoothly.

[0044] The outer tire 3 has an integrally formed annular ribs 20 at both ends. The top of the sliding seat 4 has two upward-facing C-shaped grooves 21 welded and fixed. The inner wall of the grooves 21 is an arc-shaped surface that matches the annular ribs 20, and wear-resistant pads are embedded in the grooves 21. The outer tire 3 is engaged in the grooves 21 by the annular ribs 20 at both ends, forming a rotational fit, so that the outer tire 3 can rotate synchronously with the inner tire 2 and the conical cylinder, while ensuring axial positioning accuracy.

[0045] The bottom of the sliding seat 4 is mounted on the sliding guide rail 23 on the machine base 1 via a slider. The sliding guide rail 23 is a linear guide rail, set laterally along the machine base 1 to ensure the straightness of the movement of the sliding seat 4. The machine base 1 is also equipped with a lead screw and nut pair 22. The two ends of the lead screw of the lead screw and nut pair 22 are rotatably mounted on the machine base 1 through bearing seats. The nut seats are fixedly connected to the sliding seat 4. One end of the lead screw is connected to a drive motor. The drive motor drives the lead screw to rotate, realizing the reciprocating movement of the sliding seat 4 along the sliding guide rail 23, thereby driving the outer tire 3 to move closer to or away from the inner tire 2.

[0046] A clearance opening 6 is provided on the outer tire 3 at a position opposite to the constriction side groove 9 of the inner tire 2. The clearance opening 6 is a rectangular through groove extending along the axial direction of the outer tire 3. Its width is greater than the thickness of the partition plate 5, and its length is consistent with the constriction side groove 9. This ensures that when the outer tire 3 extrudes the conical cylinder, the partition plate 5 can pass smoothly through the clearance opening 6, avoiding interference.

[0047] 4. Partition plate structure design (e.g.) Figure 4 (As shown)

[0048] The partition plate 5 is made of high-strength alloy steel plate, and its height is higher than the conical surface of the inner mold 2, ensuring accurate positioning when aligned with the weld seam of the conical cylinder. A snap-fit ​​post 10 is integrally formed on one side of the partition plate 5 opposite to the inner mold 2 surface. The snap-fit ​​post 10 is shaped to fit the constriction side groove 9. Through the snap-fit ​​engagement between the snap-fit ​​post 10 and the constriction side groove 9, the partition plate 5 can be detachably installed on the inner mold 2. After assembly, both sides of the partition plate 5 are flush with the conical surface of the inner mold 2, avoiding any impact on the fit of the conical cylinder.

[0049] The partition plate 5 has a beveled grinding groove 11 extending along its length near the edge of the snap-fit ​​post 10. The cross-section of the beveled grinding groove 11 is V-shaped, with an included angle of 30-45° (to meet the bevel angle requirements of high-pressure gas welding). The edge of the groove is hardened to form a sharp grinding edge, used for beveling the conical cylinder to be welded when the partition plate 5 is pulled out. A pull hole 12 is provided in the middle of the partition plate 5. The pull hole 12 is a circular through hole with chamfered walls, which allows the operator to pull the partition plate 5 using a hook or gloves, improving the ease of disassembly.

[0050] 5. Welding assembly structure (e.g.) Figure 2(As shown)

[0051] A frame 7 is constructed above the machine base 1 via columns and crossbeams. The crossbeams of the frame 7 are arranged along the axial direction of the inner die 2, and a motion platform 8 is mounted on the crossbeams. The motion platform 8 includes a transverse movement module and a longitudinal movement module. The transverse movement module is arranged along the length of the crossbeam, and the longitudinal movement module is arranged perpendicular to the transverse movement module. Both are driven by ball screws and servo motors to achieve precise adjustment of the welding torch in length (axial direction) and height (vertical direction), with an adjustment accuracy of ±0.1mm.

[0052] The bottom of the motion platform 8 is fixed with a welding machine mounting base. The welding machine (not shown in the figure) is fixedly mounted on the mounting base. The welding torch is fixed to the output end of the welding machine by the welding torch clamp. The welding end of the welding torch is set to correspond to the weld position of the conical cylinder. The welding torch can be finely adjusted around its own axis to adapt to the welding requirements of different bevel angles.

[0053] 6. Sensing and positioning components

[0054] A sensor 25 is fixedly mounted on the support column 13 directly above the inner tube 2 via a bracket. The sensor 25 is a Hall sensor, with its sensing end facing the end face of the inner tube 2, and the distance between it and the sensing element 24 is controlled at 5-10mm. When the inner tube 2 rotates until the sensing element 24 is aligned with the sensor 25, the sensor 25 sends a signal to the control system, controlling the rotary motor 17 to stop rotating. At this time, the partition plate 5 is exactly in the upward position, realizing the automatic alignment of the weld seam.

[0055] II. Device Workflow

[0056] The specific operating procedure for welding the cone cylinder of a high-pressure gas filter using this device is as follows:

[0057] 1. Preparation stage

[0058] Check the condition of each component of the device to ensure that the conical surfaces of the inner die 2 and outer die 3 are free of debris and wear, the tension of the timing belt 19 is appropriate, and lubricating oil is added to the sliding guide rail 23 and the groove 21. Secure the partition plate 5 in the concave side groove 9 of the inner die 2 using the snap-fit ​​post 10 to ensure that the partition plate 5 is installed in place and without looseness. According to the specifications of the cone cylinder to be processed, preset the extrusion stroke of the outer die 3, the rotation speed of the rotary motor 17, and the welding parameters of the welding torch through the control system.

[0059] 2. Clamping and pre-positioning

[0060] The operator places the pre-rolled high-pressure gas filter cone blank onto the inner die 2 from the free end of the inner die 2, so that the weld seam of the cone is aligned with the side of the partition plate 5. The partition plate 5 is used to pre-position the weld seam, ensuring that the weld seam extends along the axial direction of the inner die 2.

[0061] 3. Settle the mind and align the circle

[0062] Start the drive motor of the lead screw and nut pair 22, driving the sliding seat 4 to move along the sliding guide rail 23 towards the inner die 2, thereby driving the outer die 3 to move synchronously until the inner wall of the outer die 3 is fully in contact with the outer wall of the conical cylinder. Continue to drive the outer die 3 to apply the preset pressure. Through the conical surface cooperation and axial compression of the inner die 2 and the outer die 3, a two-way constraint is formed on the conical cylinder, quickly eliminating the roundness deviation generated during the rolling process, realizing the centering, calibration and rounding of the conical cylinder, and ensuring that the weld gap is uniform and the misalignment meets the requirements.

[0063] 4. Weld alignment

[0064] The rotary motor 17 is started, which drives the inner tube 2 to rotate via the synchronous belt 19. The inner tube 2 drives the outer tube 3 to rotate synchronously within the groove 21 via the conical cylinder. When the sensor 24 on the end face of the inner tube 2 rotates to align with the sensor 25, the sensor 25 sends a signal, and the control system controls the rotary motor 17 to stop rotating. At this time, the partition plate 5 is exactly in the upward position, and the weld is also synchronously aligned with the preset position for welding operations.

[0065] 5. Beveling and grinding

[0066] The operator holds the partition plate 5 through the pull hole 12 and pulls the partition plate 5 outward along the constriction side groove 9 of the inner die 2. During the pulling process, the sharp edges of the bevel grinding grooves 11 on both sides of the partition plate 5 contact the edge of the conical cylinder to be welded. Through the linear motion of the pulling action, the metal surface on both sides of the weld is cut and ground to form a V-shaped bevel that meets the welding requirements. At the same time, the oxide scale and impurities in the weld area are removed, realizing the integration of bevel processing and weld cleaning.

[0067] 6. Precision welding

[0068] Adjust the lateral and longitudinal positions of the motion platform 8 on the frame 7 to move the welding torch to the starting end of the weld, ensuring the welding end of the torch is precisely aligned with the center of the bevel. Start the welding machine and perform welding operations according to the preset welding parameters (current, voltage, welding speed). During the welding process, the welding torch can be moved at a uniform speed along the weld axis through the linkage control of the motion platform 8, ensuring a regular weld formation. If omnidirectional welding is required, the rotary motor 17 can be restarted to slowly rotate the conical cylinder, cooperating with the welding torch to complete the welding of the circumferential weld.

[0069] 7. Unloading and resetting

[0070] After welding is completed, the welding machine is turned off, and the motion platform 8 is adjusted to drive the welding torch back to the initial position; the drive motor of the lead screw nut pair 22 is started to drive the outer die 3 away from the inner die 2 and release the clamping on the conical cylinder; the operator removes the processed conical cylinder from the inner die 2 to complete a single operation; finally, the partition plate 5 is reinserted into the closing side groove 9 of the inner die 2, the device is reset, and it is ready for the next processing.

[0071] This embodiment achieves precise centering and rounding through the matching of conical surfaces of inner and outer jigs and axial extrusion. It integrates weld positioning and beveling by using a partition plate with a bevel grinding groove. Combined with rotary drive and precise sensing positioning, it significantly improves the welding efficiency and quality stability of the high-pressure gas filter cone. Moreover, the device is highly versatile and can be adapted to the processing needs of cones of different specifications.

Claims

1. A high pressure gas filter integrated welding device, characterized by: Including machine table (1), the machine table (1) is provided with the conical platform-shaped inner mold (2) that is adapted to the inner edge of filter laterally, the machine table (1) is provided with the conical platform-shaped outer mold (3) that is adapted to the outer edge of filter on one side of inner mold (2); The outer mold (3) is loaded on the sliding seat (4) and can reciprocate along the direction close to or away from the inner mold (2);The surface of the inner mold (2) on one side is detachably provided with a partition plate (5) extending along the length direction of the inner mold (2), and the outer mold (3) is provided with a gap (6) for the partition plate (5) to pass through at the position opposite to the partition plate (5). The top of the machine table (1) is provided with a rack (7), and the rack (7) is provided with a movable platform (8) capable of moving in length and height directions, and the movable platform (8) is loaded with a welding machine and a welding gun. The surface of the inner mold (2) on one side is provided with a closing side groove (9) extending along the length direction of the inner mold (2);The side opposite to the surface of the partition plate (5) and the inner mold (2) is provided with a clamping column (10) matched with the closing side groove (9), and is clamped in the closing side groove (9) through the clamping column (10). The edge close to the clamping column (10) of the partition plate (5) is provided with a bevel polishing groove (11) extending along the length direction of the partition plate (5).

2. The high pressure gas filter integrated welding device of claim 1, wherein: The plate body of the partition plate (5) is provided with a hand-pulling hole (12).

3. The high pressure gas filter integrated welding device of claim 1, wherein: The inner mold (2) and the outer mold (3) can rotate around their respective axes.

4. The high pressure gas filter integrally welded device of claim 3, wherein: Two supporting columns (13) are symmetrically arranged on the machine table (1), and the shaft rod (14) at one end of the inner mold (2) is rotatably arranged on one supporting column (13) through a rotary joint (15); The shaft rod (14) is provided with a first synchronous wheel (16), the bottom surface of the machine table (1) is provided with a rotary motor (17), the output end of the rotary motor (17) is provided with a second synchronous wheel (18), and the first synchronous wheel (16) is connected through a synchronous belt (19).

5. The high pressure gas filter integrally welded device of claim 3, wherein: The two ends of the outer mold (3) are provided with ring ribs (20), the top of the sliding seat (4) is provided with two C-shaped grooves (21) with open top matched with the ring ribs (20), and the ring ribs (20) at the two ends of the outer mold (3) are clamped in the grooves (21) and rotatably matched with the sliding seat (4).

6. The high pressure gas filter integrally welded device of claim 5, wherein: The position opposite to the sliding seat (4) on the machine table (1) is provided with a screw nut pair (22) and a sliding guide rail (23), and the sliding seat (4) is installed on the sliding guide rail (23) and driven by the screw nut pair (22).

7. The high pressure gas filter integrally welded device of claim 6, wherein: The position opposite to the partition plate (5) on the end surface of the inner mold (2) is provided with a sensing body (24), and the supporting column (13) located directly above the inner mold (2) is provided with a sensor (25) matched with the sensing body (24).

8. The high pressure gas filter integrally welded device of claim 1, wherein: The length of the inner mold (2) is greater than the length of the filter conical cylinder segment, and the length of the outer mold (3) is less than the length of the filter conical cylinder segment.

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