A pressure vessel production and processing method

Abstract

The present invention discloses a pressure vessel production and processing method, comprising the following steps: S1, placing two groups of pressure vessel pipelines in a processing and grinding device above a welding table on the surface of a processing table for circumferential welding; S2, pulling and conveying the welded pressure vessel to the top of the grinding table on the surface of the processing table; S3, realizing axial grinding by starting a second motor to control the movement of an outer grinding component and an inner grinding component; S4, starting a first motor and a cylinder to realize circumferential grinding; S5, inspecting the weld seam of the pressure vessel after grinding, and defective products can be returned to the welding table for repair welding; controlling the rotation of a second screw rod by a third motor, and driving the first magnetic block to move up and down by an adjusting block, so as to control the size of the magnetic attraction between the first magnetic block and the second magnetic block, thereby adjusting the friction force applied by the outer grinding plate and the inner grinding plate on the surface of the pressure vessel, realizing the adjustment of the grinding force, and being suitable for pressure vessels with different grinding requirements, with higher applicability.

Description

Technical Field

[0001] The invention relates to the technical field of pressure vessel manufacturing, and in particular to a pressure vessel production and processing method. Background Art

[0002] A pressure vessel is a closed device that contains gas or liquid and bears a certain pressure. It has the characteristics of bearing pressure, good sealing and specific structural form. Among them, austenitic stainless steel has good corrosion resistance, processing performance and welding performance, and is widely used in food, beverage, pharmaceutical and other industries.

[0003] Stainless steel pressure vessels are often associated with welding and grinding during the manufacturing and maintenance processes. In the manufacturing process, since pressure vessels need to withstand a certain pressure and have good airtightness requirements, their specific structural forms are usually welded from multiple parts; high-quality welding technology is essential to ensure the strength and sealing of the container. During the welding process, the weld may need to be ground to remove welding slag, spatter, etc., to make the weld surface smooth and flat, reduce stress concentration, and improve the safety and reliability of the container.

[0004] The patent with the authorization announcement number CN112355769B discloses a method for processing a chemical pressure vessel, including a base, a clamping limit mechanism and a grinding mechanism; wherein the grinding mechanism is a grinding branch chain that grinds the inside and outside of the welding part of the chemical pressure vessel, and the grinding branch chain is driven to realize the reciprocating linear motion of the grinding branch chain, so that the grinding block can effectively grind the welding part;

[0005] However, when the patent polishes the pressure vessel by driving the branch chain to realize the reciprocating linear motion of the polishing branch chain, there are the following defects: First, a large amount of movement space is required for the movement of the two ends of the pressure vessel through the two sets of polishing branch chains, which will result in a large footprint; second, polishing can only be carried out by a single reciprocating motion, and some welding points cannot be polished individually, and the polishing process is poor; third, the device can only be used for axially welded pressure vessels, and cannot be used to polish the circumferential welding positions of two sets of cylindrically spliced ​​pressure vessels, and has low practicality; fourth, the polishing device cannot adjust the polishing force and has poor applicability; therefore, the present invention proposes a pressure vessel production and processing method. Summary of the invention

[0006] The object of the present invention is to provide a pressure vessel production and processing method to solve the problems raised in the above background.

[0007] To achieve the above object, the present invention provides the following technical solution: a pressure vessel production and processing method, comprising the following steps:

[0008] S1. Place two groups of pressure vessel pipes on a welding table on the surface of a processing table in a processing and grinding device for circumferential welding;

[0009] S2, pulling and transporting the welded pressure vessel to the top of the grinding table on the surface of the processing table;

[0010] S3, realizing axial grinding by starting the second motor to control the movement of the outer grinding component and the inner grinding component;

[0011] S4, starting the first motor and the cylinder to perform circumferential grinding;

[0012] S5. Check the welds of the polished pressure vessel, and defective products can be returned to the welding station for repair welding;

[0013] Wherein, the processing and grinding device comprises an outer grinding component for grinding the outer side of the pressure vessel and an inner grinding component for grinding the inner side of the pressure vessel; the outer grinding component is located in the outermost area of ​​the processing and grinding device after the pressure vessel is placed, and contacts the outer wall of the pressure vessel, and the inner grinding component is located directly above the outer grinding component and contacts the inner wall of the pressure vessel, and the outer grinding component comprises a moving slide, a third motor is fixedly connected to the interior of the moving slide, a second screw rod is fixedly connected to the output end of the third motor, and the surface of the second screw rod An adjusting block is threadedly connected, and a first magnetic block is fixedly arranged on the upper end of the adjusting block; a through hole is arranged on the surface of the first magnetic block, and a limiting column is slidably arranged in the through hole, and an outer grinding plate is fixedly connected to the upper end of the limiting column, and a first spring is arranged on the outer surface of the limiting column between the first magnetic block and the outer grinding plate; the inner grinding assembly includes a moving block and a spherical wheel, a sliding block is slidably connected to the inside of the moving block, a second spring is sleeved under the sliding block, the lower end surface of the sliding block is fixedly connected to the inner grinding plate through a connecting rod, and the upper end surface of the inner grinding plate is fixedly connected to the second magnetic block.

[0014] Preferably, when the processing and polishing device is performing pressure vessel pipe polishing work, the second magnetic block is located directly above the first magnetic block, and under the magnetic attraction of the two, the inner polishing component is always directly above the outer polishing component; when the moving slide moves, the first magnetic block magnetically attracts the second magnetic block to control the inner polishing component to move synchronously with the outer polishing component; the magnetic attraction between the first magnetic block and the second magnetic block is always greater than the friction between the inner polishing plate and the inner side of the pressure vessel.

[0015] Preferably, by starting the third motor to control the rotation of the second screw rod, the adjustment block drives the first magnetic block to move up and down, and the magnetic attraction force between the first magnetic block and the second magnetic block can be controlled. The closer the distance, the greater the magnetic attraction force, the greater the friction force applied to the surface of the pressure vessel, and the greater the grinding force; conversely, the smaller the grinding force.

[0016] Preferably, the moving slide is threadedly disposed on the surface of the first screw rod, and one end of the first screw rod is fixed to the output end surface of the second motor.

[0017] Preferably, the processing and polishing device further comprises a processing table, the surface of which is provided with an arc-shaped conveying groove, the surface of which is detachably and fixedly connected with a clamping plate, and the surface of the clamping plate is provided with a plurality of conveying wheels.

[0018] Preferably, a rotating assembly is provided below the arc-shaped conveying trough; the rotating assembly comprises a first motor, the output end of the first motor is sleeved with a transmission belt, the surface of the transmission belt is sleeved with a rotating shaft, and the surface of the rotating shaft is fixedly connected with a driving wheel.

[0019] Preferably, a connecting rod is provided on the outer surface of the middle part of the rotating shaft, and a cylinder is fixedly provided on the lower end of the connecting rod.

[0020] Preferably, the processing and polishing device also includes a limit rod, which is fixed above the arc-shaped conveying trough, and the surface sliding sleeve of the limit rod is provided with a clamping block, and the surface of the clamping block is threadedly connected with a fastening bolt; the surface of the clamping block is provided with a polishing sheet for deburring both ends of the pressure vessel.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention uses the magnetic attraction of the outer grinding component and the inner grinding component. When axial grinding is performed, the first screw controls the outer grinding component to move, and the inner grinding component moves synchronously with the magnetic attraction of the outer grinding component. Reciprocating grinding is achieved by the forward and reverse rotation of the first screw, which does not require a large amount of movement space and effectively reduces the floor space occupied.

[0023] 2. In the present invention, when the outer grinding assembly reaches the grinding position, the third motor can be started, and the outer grinding plate and the inner grinding plate can be controlled to grind specific welding areas or welding points separately by controlling the forward and reverse rotation of the first screw, which greatly improves the grinding process.

[0024] 3. The present invention is provided with a rotating assembly. When it is necessary to grind the weld in the circumferential direction, the outer grinding assembly and the inner grinding assembly are transported to the circumferential line of the circle, and then the first motor is started to control the container to rotate in a circle through the driving wheel, thereby realizing the grinding of the pressure vessel in the circumferential direction, which is more practical.

[0025] 4. The present invention controls the rotation of the second screw through the third motor, and the adjustment block drives the first magnetic block to move up and down, so as to control the magnetic attraction between the first magnetic block and the second magnetic block, thereby adjusting the friction force applied by the outer grinding plate and the inner grinding plate on the surface of the pressure vessel, thereby realizing the adjustment of the grinding force, which is suitable for pressure vessels with different grinding requirements and has higher applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a flow chart of the steps of a pressure vessel production method;

[0027] Figure 2 This is a schematic diagram of the welding and grinding area locations;

[0028] Figure 3 This is a schematic diagram of the welding and grinding area structure;

[0029] Figure 4 for Figure 3 The enlarged structural diagram at a in the middle;

[0030] Figure 5 This is a position relationship diagram of the outer grinding component and the inner grinding component;

[0031] Figure 6 is a schematic diagram of the position of the first screw rod;

[0032] Figure 7 It is a schematic diagram of the rotating component structure;

[0033] Figure 8 It is a motion relationship diagram of the first screw rod and the outer grinding assembly;

[0034] Fig. 9 This is a schematic diagram of the outer grinding component structure;

[0035] Fig.10 This is a schematic diagram of the inner side grinding component structure;

[0036] In the figure: 1, processing table; 11, arc conveying trough; 2, clamping plate; 21, conveying wheel; 3, limiting rod; 31, clamping block; 32, fastening bolt; 4, rotating assembly; 41, first motor; 42, transmission belt; 43, rotating shaft; 44, driving wheel; 5, first screw rod; 51, second motor; 6, outer grinding assembly; 61, moving slide; 62, third motor; 63, second screw rod; 64, adjusting block; 641, first magnetic block; 65, limiting column; 66, outer grinding plate; 67, first spring; 7, inner grinding assembly; 71, moving block; 72, spherical wheel; 73, slider; 74, inner grinding plate; 741, second magnetic block; 75, second spring; 8, cylinder; 81, connecting rod; DETAILED DESCRIPTION

[0037] In the prior art, the grinding of pressure vessels by driving the branch chain to realize the reciprocating linear motion of the grinding branch chain has the following defects: first, two sets of grinding branch chains are set at both ends of the pressure vessel, which requires a lot of movement space and occupies a large area; second, it can only perform a single reciprocating motion, and it is impossible to grind some welding points separately, and the grinding process is poor; third, it can only be applied to axially welded pressure vessels, and it is impossible to grind the circumferential welding positions of two sets of cylindrical spliced ​​pressure vessels, and the practicality is low; fourth, the grinding intensity cannot be adjusted, and the applicability is poor;

[0038] Therefore, if Figure 1 As shown, the present invention provides a pressure vessel production and processing method, comprising the following steps:

[0039] S1, placing two groups of pressure vessel pipes in a processing and grinding device above a welding table on the surface of a processing table 1 for circumferential welding;

[0040] S2, pulling and transporting the welded pressure vessel to the top of the grinding table on the surface of the processing table 1;

[0041] S3, axial grinding is achieved by starting the second motor 51 to control the movement of the outer grinding assembly 6 and the inner grinding assembly 7;

[0042] S4, start the first motor 41 and the cylinder 8 to perform circumferential grinding;

[0043] S5. Check the welds of the polished pressure vessel, and defective products can be returned to the welding station for repair welding;

[0044] like Figure 2 and Figure 3 As shown, a processing and grinding device includes a processing table 1, the surface of the processing table 1 is provided with an arc-shaped conveying groove 11, the surface of the arc-shaped conveying groove 11 is detachably fixedly connected with a clamping plate 2, and the surface of the clamping plate 2 is provided with a plurality of conveying wheels 21.

[0045] like Figure 4 As shown, a processing and grinding device also includes a limit rod 3, which is fixed above the arc conveying trough 11. The surface of the limit rod 3 is slidably sleeved with a clamping block 31, and the surface of the clamping block 31 is threadedly connected with a fastening bolt 32; the surface of the clamping block 31 is provided with a grinding sheet for deburring the two ends of the pressure vessel.

[0046] like Figure 6 As shown, a first screw rod 5 is provided at the lower end of the interior of the processing and polishing device, the center line of the first screw rod 5 is parallel to the center line of the pressure vessel pipe to be polished, the moving slide 61 is threadedly penetrated on the outer surface of the first screw rod 5, and a second motor 51 is provided at one end of the first screw rod 5.

[0047] A rotating assembly 4 is provided below the arc-shaped conveying trough 11; Figure 7As shown, the rotating assembly 4 includes a first motor 41 , the output end of the first motor 41 is sleeved with a transmission belt 42 , the surface of the transmission belt 42 is sleeved with a rotating shaft 43 , and the surface of the rotating shaft 43 is fixedly connected with a driving wheel 44 .

[0048] A connecting rod 81 is provided on the outer surface of the middle portion of the rotating shaft 43 , and a cylinder 8 is fixedly provided on the lower end of the connecting rod 81 .

[0049] like Figure 8 As shown, a processing and grinding device includes an outer grinding component 6 for grinding the outer side of a pressure vessel and an inner grinding component 7 for grinding the inner side of the pressure vessel; the outer grinding component 6 is located at the outermost area of ​​the processing and grinding device after the pressure vessel is placed, and contacts the outer wall of the pressure vessel, and the inner grinding component 7 is located directly above the outer grinding component 6 and contacts the inner wall of the pressure vessel;

[0050] like Fig. 9 As shown, the outer grinding assembly 6 includes a moving slide 61, a third motor 62 is fixedly connected to the inside of the moving slide 61, a second screw rod 63 is fixedly connected to the output end of the third motor 62, an adjusting block 64 is threadedly connected to the surface of the second screw rod 63, and a first magnetic block 641 is fixedly arranged on the upper end of the adjusting block 64; a through hole is arranged on the surface of the first magnetic block 641, a limiting column 65 is slidably arranged in the through hole, an outer grinding plate 66 is fixedly connected to the upper end of the limiting column 65, and a first spring 67 is arranged on the outer surface of the limiting column 65 between the first magnetic block 641 and the outer grinding plate 66;

[0051] When the processing and polishing device is performing pressure vessel pipeline polishing work, the second magnetic block 741 is located directly above the first magnetic block 641. Under the attraction of the magnetic forces of the two, the inner polishing component 7 is always directly above the outer polishing component 6. By starting the third motor 62 to control the rotation of the second screw 63, the adjustment block 64 drives the first magnetic block 641 to move up and down, and the magnetic attraction between the first magnetic block 641 and the second magnetic block 741 can be controlled. The closer the distance, the greater the magnetic attraction, the greater the friction applied to the surface of the pressure vessel, and the greater the polishing force; conversely, the smaller the polishing force.

[0052] like Fig.10 As shown, the inner grinding assembly 7 includes a moving block 71 and a spherical wheel 72. The moving block 71 is internally slidably connected with a slider 73. A second spring 75 is sleeved below the slider 73. The lower end surface of the slider 73 is fixedly connected to an inner grinding plate 74 through a connecting rod. The upper end surface of the inner grinding plate 74 is fixedly connected to a second magnetic block 741.

[0053] When the moving slide 61 moves, the first magnetic block 641 magnetically attracts the second magnetic block 741 to control the inner grinding assembly 7 to move synchronously with the outer grinding assembly 6; the magnetic attraction between the first magnetic block 641 and the second magnetic block 741 is always greater than the friction between the inner grinding plate 74 and the inner side of the pressure vessel.

[0054] Working principle: Place two sets of axially welded pressure vessels on the welding table area on the surface of the arc conveyor trough 11, such as Figure 5 As shown, by adjusting the positions of several conveying wheels 21, the limiting work of containers with different diameters can be applied. The conveying wheels 21 are supported by the clamping plates 2, and the clamping plates 2 are fixed on the inner surface of the arc-shaped conveying groove 11. The arc-shaped conveying groove 11 coincides with the center of the circle of the pressure vessel pipeline to be polished. When pressure vessels with other diameters are applied, it is only necessary to adjust the radial distance of the clamping plates 2 in the arc-shaped conveying groove 11 to achieve limiting support for pressure vessels with different diameters; with the limiting support of multiple sets of conveying wheels 21, the pressure vessel can be easily pushed by the operator to perform conveying operations.

[0055] The two sets of pressure vessels are butt-jointed at the welding points, and the clamping block 31 is moved to the end surface of the butted container so that the clamping block 31 is parallel to the ground. At this time, the fastening bolts 32 are tightened so that the two sets of fastening bolts 32 limit the axial position of the pressure vessel;

[0056] The butted container is welded by an external welder. In this process, the cylinder 8 is first started, so that the cylinder 8 controls the connecting rod 81 to push the rotating shaft 43 upward, and the driving wheel 44 stops after it fully contacts the surface of the pressure container; the first motor 41 is started, so that the first motor 41 drives the rotating shaft 43 to rotate through the transmission belt 42, and the rotating shaft 43 drives the driving wheel 44 to rotate. The rotation of the driving wheel 44 can drive the container to rotate at a low speed. At this time, the worker can perform complete circumferential welding on the pressure container at the same position, thereby improving the welding efficiency;

[0057] After welding is completed, the driving wheel 44 is controlled by the cylinder 8 to disengage from the pressure vessel; the fastening bolts 32 are loosened to make the clamping block 31 perpendicular to the ground, and the pressure vessel is released; at this time, the container is pushed to be transported to the grinding table area on the surface of the conveying wheel 21, and the same limiting operation is performed on the clamping block 31 above the grinding table; wherein, the clamping block 31 is slidably sleeved on the surface of the limiting rod 3. In this embodiment, four limiting rods 3 are symmetrically arranged on the upper surface of the processing table 1, and the two ends of each limiting rod 3 are respectively provided with clamping blocks 31. When the clamping block 31 is parallel to the ground, the pressure vessel can be axially limited.

[0058] When the pressure vessel needs to be axially ground, the weld is placed downward, and the second motor 51 is started. The second motor 51 drives the outer grinding assembly 6 to move axially below the vessel through the first screw 5. The reciprocating grinding of the outer grinding assembly 6 is achieved by the forward and reverse rotation of the first screw 5, which occupies a smaller area.

[0059] During the grinding process, the staff first places the inner grinding assembly 7 inside the pressure vessel just above the outer grinding assembly 6; starts the third motor 62, and the third motor 62 controls the adjustment block 64 to slide upward through the second screw rod 63, thereby driving the first magnetic block 641 to move upward. The upward movement of the first magnetic block 641 will compress the first spring 67 upward. Under the elastic force of the first spring 67, the outer grinding plate 66 moves upward, so that the outer grinding plate 66 contacts the outer surface of the pressure vessel;

[0060] At the same time, the second magnetic block 741 is attracted downward by the first magnetic block 641, so that the inner grinding plate 74 contacts the inner surface of the pressure vessel; at this time, the inner and outer sides of the pressure vessel can be ground by moving the outer grinding assembly 6; wherein, the inner grinding assembly 7 is taken out by the staff when no grinding work is performed, and when taking it out, it is necessary to first adjust the first magnetic block 641 to the lowest point, that is, the farthest point from the second magnetic block 741.

[0061] When a certain position of the pressure vessel needs to be polished, the third motor 62 can be started after the outer polishing assembly 6 reaches the polishing position, and the outer polishing plate 66 and the inner polishing plate 74 can be controlled to rotate forward and reversely to polish the welding area or welding point separately, so that the polishing process is higher;

[0062] When the welding place is relatively rough or needs deep grinding, the second screw rod 63 is controlled to continue to rotate, and the adjusting block 64 drives the first magnetic block 641 to continue to move upward; when the adjusting block 64 rises, since the outer grinding plate 66 is limited by the container, the adjusting block 64 gradually squeezes the first spring 67, so that the elastic connection between the outer grinding plate 66 and the adjusting block 64 gradually forms a rigid connection, and the greater the pressure applied by the adjusting block 64 to the outer grinding plate 66, the greater the force applied by the outer grinding plate 66 to the surface of the container; at the same time, after the first magnetic block 641 moves upward, the position of the second magnetic block 741 becomes closer and closer, and the magnetic attraction between them becomes greater, so that the force between the inner grinding plate 74 and the inside of the pressure container becomes greater; thereby, the grinding operation of the container that is relatively rough or needs deep grinding is realized, and the applicability is higher;

[0063] When the weld seam in the circumferential direction needs to be polished, the outer polishing assembly 6 and the inner polishing assembly 7 are transported to the circumference of the circle, and then the first motor 41 is started to control the container to rotate in a circle through the driving wheel 44, so that the circumferential direction of the pressure container can be polished, which is more practical.

[0064] By controlling the output power of the first motor 41, the rotation speed of the container can be controlled, and thus the grinding efficiency can be controlled;

[0065] At the same time, when the container rotates, the welds at various positions of the pressure vessel can be conveniently inspected. If there are bad welds, the container can be directly pushed to the welding table for repair welding through the conveying wheel 21. There is no need to set up additional traction or conveying equipment. The structure is simple and the cost is low, making the processing of the container more convenient.

[0066] The above-mentioned embodiments only express the implementation methods of the present invention, and cannot be understood as limiting the scope of the invention patent, nor is it any form of limitation on the structure of the present invention. It should be pointed out that for ordinary technicians in this field, several changes and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A pressure vessel production and processing method, characterized in that: The following steps are involved: S1. Place two groups of pressure vessel pipes in a processing and grinding device above a welding table on the surface of a processing table (1) for circumferential welding; S2. Draw and transport the welded pressure vessel to the surface of the grinding table above the processing table (1); S3. Start the second motor (51) to control the movement of the outer grinding assembly (6) and the inner grinding assembly (7) to achieve axial grinding; S4. Start the first motor (41) and the cylinder (8) to achieve circumferential grinding; S5. Check the weld of the pressure vessel after grinding to find defective The product can be returned to the welding table for repair welding; wherein the processing and grinding device comprises an outer grinding component (6) for grinding the outer side of the pressure vessel and an inner grinding component (7) for grinding the inner side of the pressure vessel; the outer grinding component (6) is located at the outermost area of ​​the processing and grinding device after the pressure vessel is placed, and contacts the outer wall of the pressure vessel, and the inner grinding component (7) is located directly above the outer grinding component (6) and contacts the inner wall of the pressure vessel, and the outer grinding component (6) comprises a moving slide seat (61), A third motor (62) is fixedly connected to the interior of the motion slide seat (61); a second screw rod (63) is fixedly connected to the output end of the third motor (62); an adjustment block (64) is threadedly connected to the surface of the second screw rod (63); a first magnetic block (641) is fixedly arranged on the upper end of the adjustment block (64); a through hole is arranged on the surface of the first magnetic block (641); a limit column (65) is slidably arranged in the through hole; an outer grinding plate (66) is fixedly connected to the upper end of the limit column (65); ) is provided with a first spring (67) on the outer surface between the first magnetic block (641) and the outer grinding plate (66); the inner grinding assembly (7) comprises a moving block (71) and a spherical wheel (72); a slider (73) is slidably connected to the inside of the moving block (71); a second spring (75) is sleeved below the slider (73); the lower end surface of the slider (73) is fixedly connected to the inner grinding plate (74) via a connecting rod; and the upper end surface of the inner grinding plate (74) is fixedly connected to the second magnetic block (741); The processing and polishing device further comprises a processing table (1), the surface of the processing table (1) is provided with an arc-shaped conveying groove (11), the surface of the arc-shaped conveying groove (11) is detachably and fixedly connected with a clamping plate (2), and the surface of the clamping plate (2) is provided with a plurality of conveying wheels (21); A rotating assembly (4) is disposed below the arc-shaped conveying trough (11); the rotating assembly (4) comprises a first motor (41); a transmission belt (42) is sleeved on the output end of the first motor (41); a rotating shaft (43) is sleeved on the surface of the transmission belt (42); and a driving wheel (44) is fixedly connected to the surface of the rotating shaft (43); A connecting rod (81) is provided on the outer surface of the middle portion of the rotating shaft (43), and a cylinder (8) is fixedly provided at the lower end of the connecting rod (81).

2. A pressure vessel production and processing method according to claim 1, characterized in that: When the processing and polishing device is performing a pressure vessel pipe polishing operation, the second magnetic block (741) is located directly above the first magnetic block (641), and under the attraction of the magnetic forces of the two, the inner polishing assembly (7) is always located directly above the outer polishing assembly (6).

3. A pressure vessel production and processing method according to claim 2, characterized in that: The second screw rod (63) is controlled to rotate by the third motor (62), and the second screw rod (63) drives the adjustment block (64) to move, thereby driving the first magnetic block (641) to move up and down.

4. A pressure vessel production and processing method according to claim 1, characterized in that: A first screw rod (5) is disposed at the lower end of the interior of the processing and polishing device, the center line of the first screw rod (5) is parallel to the center line of the pressure vessel pipe to be polished, a moving slide seat (61) is threadedly disposed on the outer surface of the first screw rod (5), and a second motor (51) is disposed at one end of the first screw rod (5).

5. A pressure vessel production and processing method according to claim 1, characterized in that: The processing and grinding device further comprises a limit rod (3), the limit rod (3) being fixed above the arc-shaped conveying trough (11), a clamping block (31) being slidably sleeved on the surface of the limit rod (3), a fastening bolt (32) being threadedly connected to the surface of the clamping block (31); and a grinding sheet for deburring both ends of the pressure vessel being provided on the surface of the clamping block (31).

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