Circumferential welding device for pressure container

Abstract

The utility model provides a circumferential welding device for a pressure vessel, which relates to the technical field of welding devices and comprises a frame, transverse rods are symmetrically and fixedly mounted on the inner side of the bottom of the frame, sliding plates are slidably connected to the outer surfaces of the transverse rods, and telescopic cylinders are symmetrically and fixedly mounted on one sides of the sliding plates. The output end of the telescopic air cylinder is rotationally connected with the first jig, a fixing plate is fixedly installed on the inner side of the cross rod, rotating shafts are symmetrically and rotationally connected into the fixing plate, the ends, close to the sliding plate, of the rotating shafts are rotationally connected with the second jig, belt wheels are fixedly installed at the ends, away from the second jig, of the rotating shafts, and a conveying belt is arranged in the belt wheels in a sleeved mode. According to the utility model, two pressure containers can be circumferentially welded at the same time, and compared with the traditional equipment which can only perform single welding, the production efficiency is greatly improved, the production cycle is effectively shortened, the large-scale production requirement is met, an enterprise can produce more qualified products within the same time, and the market competitiveness is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding device technical field especially relates to a kind of circumferential welding device for pressure vessel. BACKGROUND

[0002] In the field of pressure vessel manufacturing, circumferential welding is a very critical process, and its quality and efficiency directly affect the overall performance and production efficiency of the product.

[0003] The current traditional pressure vessel circumferential welding device can only weld a single pressure vessel at a time. In large-scale production demand, the production rhythm is slow and difficult to meet the efficient production target, making it difficult to improve production capacity and unable to meet the growing demand for pressure vessels in the market, weakening the market competitiveness of enterprises. Therefore, it needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of the prior art that the pressure vessel circumferential welding device can only weld a single pressure vessel at a time, and proposes a circumferential welding device for pressure vessel.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a circumferential welding device for pressure vessel, comprising a frame, a horizontal bar is symmetrically fixed and installed on the inner side of the bottom of the frame, a sliding plate is slidably connected to the outer surface of the horizontal bar, a telescopic air cylinder is symmetrically fixed and installed on one side of the sliding plate, a jig one is rotatably connected to the output end of the telescopic air cylinder, a fixed plate is fixedly installed on the inner side of the horizontal bar, a rotating shaft is symmetrically rotatably connected to the inside of the fixed plate, a jig two is rotatably connected to one end of the rotating shaft close to the sliding plate, a belt pulley is fixedly installed on the other end of the rotating shaft away from the jig two, a conveying belt is sleeved in the inside of the belt pulley, a mounting bracket is fixedly installed on the side of the fixed plate away from the sliding plate, a first motor is fixedly installed on the side of the mounting bracket away from the fixed plate, a limiting rod is fixedly installed on the inner side of the top of the frame, a connecting plate is symmetrically fixed and installed on the top of the frame, a second motor is fixedly installed on one side of the connecting plate, a lead screw one is fixedly installed on the output end of the second motor, a sliding block is threadedly connected to the outer wall of the lead screw one, an electric telescopic rod is fixedly installed on the bottom of the sliding block, a bottom plate is fixedly installed on the output end of the electric telescopic rod, C-shaped brackets are fixedly installed on both sides of the bottom plate, limiting columns are symmetrically fixed and installed on the inner side of the C-shaped brackets, a third motor is fixedly installed on one side of the C-shaped bracket, a lead screw two is fixedly installed on the output end of the third motor, a long plate is threadedly connected to the outer wall of the lead screw two, and welding guns are symmetrically fixed and installed in the inside of the long plate.

[0006] Preferably, the number of pulleys is two groups, and the pulleys are rotatably connected with the conveying belt, and the output end of the first motor is fixedly connected with one of the pulleys.

[0007] Preferably, the sliding block is slidably connected with the limiting rod, and the long plate is slidably connected with the limiting column.

[0008] Preferably, one end of the second screw rod away from the C-shaped frame is rotatably connected with the bottom plate, and one end of the limiting column away from the C-shaped frame is fixedly connected with the bottom plate.

[0009] Preferably, the bottom of the frame is symmetrically fixedly provided with a pad.

[0010] Preferably, sliding holes are formed in the two sides of the sliding plate, screw holes are uniformly formed in the outer side of the cross rod, and the screw holes are internally threadedly connected with locking bolts.

[0011] Preferably, the locking bolt is slidably connected with the sliding hole.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] 1、 The utility model discloses, through the cooperative matching of jig no. 1 and jig no. 2 and the drive of telescopic cylinder, realize the steady clamping of two pressure vessels, ensure the position stability of pressure vessel in the welding process, realize the synchronous rotation of two pressure vessels through the transmission system that pulley, conveying belt and rotating shaft constitute, provide stable movement basis for circumferential welding, guarantee the uniformity and consistency of welding, realize the accurate position adjustment of welding torch through the sliding of sliding block along the limiting rod that second motor drives screw rod no. 1 drives, the sliding of long plate on the outer wall of limiting column that third motor drives screw rod no. 2 drives and the lifting movement of electric telescopic link, thereby effectively improve the precision of welding, guarantee the welding quality, the design can carry out circumferential welding to two pressure vessels simultaneously, compared with traditional equipment that can only single welding, greatly improve production efficiency, effectively shorten production cycle, satisfy the large -scale production demand, make enterprise can output more qualified products in the same time, strengthen market competitiveness.

[0014] 2、 The utility model discloses, through pushing the slide plate to left or right, make its slide plate slide on cross bar, after sliding proper distance, again align the slide hole of slide plate two sides with the screw hole of cross bar outside, after aligning, again the locking bolt is worn into screw hole in slide hole, and then its fixed slide plate's position, the design realizes the spacing adjustment function of jig no. 1 and jig no. 2, provides great convenience for adapting different size pressure vessel. ACCURACY

[0015] Figure 1 The utility model proposes a kind of overall structure schematic diagram for the circumferential welding device of pressure vessel;

[0016] Figure 2 The utility model proposes a kind of partial structure overhead schematic diagram for the circumferential welding device of pressure vessel;

[0017] Figure 3 The utility model proposes a kind of for the circumferential welding device of pressure vessel; Figure 2 The enlarged view in A of middle;

[0018] Figure 4 The utility model proposes a kind of partial structure side schematic diagram for the circumferential welding device of pressure vessel.

[0019] Legend: 1, frame; 2, crossbar; 3, sliding plate; 4, telescopic cylinder; 5, jig one; 6, fixed plate; 7, pivot; 8, jig two; 9, pulley; 10, conveying belt; 11, mounting frame; 12, first motor; 13, limiting rod; 14, connecting plate; 15, second motor; 16, screw one; 17, sliding block; 18, electric telescopic rod; 19, bottom plate; 20, C-shaped frame; 21, limiting column; 22, third motor; 23, screw two; 24, long plate; 25, welding gun; 26, sliding hole; 27, screw hole; 28, locking bolt; 29, cushion block. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the specific details described herein, and therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0022] Please refer to Figures 1-4 The present application provides a technical scheme: a circumferential welding device for a pressure vessel, comprising a frame 1, the bottom inner side of the frame 1 is symmetrically fixedly installed with a crossbar 2, the outer surface of the crossbar 2 is slidably connected with a sliding plate 3, one side of the sliding plate 3 is symmetrically fixedly installed with a telescopic cylinder 4, the output end of the telescopic cylinder 4 is rotatably connected with a jig one 5, the inner side of the crossbar 2 is fixedly installed with a fixed plate 6, the inside of the fixed plate 6 is symmetrically rotatably connected with a pivot 7, one end of the pivot 7 close to the sliding plate 3 is rotatably connected with a jig two 8, the other end of the pivot 7 away from the jig two 8 is fixedly installed with a pulley 9, the inside of the pulley 9 is sleeved with a conveying belt 10, one side of the fixed plate 6 away from the sliding plate 3 is fixedly installed with a mounting frame 11, one side of the mounting frame 11 away from the fixed plate 6 is fixedly installed with a first motor 12, the top inner side of the frame 1 is fixedly installed with a limiting rod 13, the top of the frame 1 is symmetrically fixedly installed with a connecting plate 14, one side of the connecting plate 14 is fixedly installed with a second motor 15, the output end of the second motor 15 is fixedly installed with a screw one 16, the outer wall of the screw one 16 is threadedly connected with a sliding block 17, the bottom of the sliding block 17 is fixedly installed with an electric telescopic rod 18, the output end of the electric telescopic rod 18 is fixedly installed with a bottom plate 19, both sides of the bottom plate 19 are fixedly installed with a C-shaped frame 20, the inner side of the C-shaped frame 20 is symmetrically fixedly installed with a limiting column 21, one side of the C-shaped frame 20 is fixedly installed with a third motor 22, the output end of the third motor 22 is fixedly installed with a screw two 23, the outer wall of the screw two 23 is threadedly connected with a long plate 24, the inside of the long plate 24 is symmetrically fixedly installed with a welding gun 25.

[0023] The stable clamping of the two pressure containers is realized through the cooperation of the jig one 5 and the jig two 8 and the driving of the telescopic cylinder 4, the position stability of the pressure containers in the welding process is ensured, the synchronous rotation of the two pressure containers is realized through the transmission system composed of the belt pulley 9, the conveying belt 10 and the rotating shaft 7, the stable movement basis for the circumferential welding is provided, the uniformity and consistency of the welding are ensured, the accurate position adjustment of the welding gun 25 is realized through the driving of the sliding block 17 along the limiting rod 13 by the second motor 15 driving the lead screw one 16, the driving of the long plate 24 along the outer wall of the limiting column 21 by the third motor 22 driving the lead screw two 23, and the lifting movement of the electric telescopic rod 18, so that the precision of the welding is effectively improved, and the welding quality is ensured, the design can simultaneously circumferentially weld two pressure containers, compared with the traditional equipment which can only weld one at a time, the production efficiency is greatly improved, the production cycle is effectively shortened, the large-scale production demand is met, more qualified products can be produced in the same time, and the market competitiveness is enhanced.

[0024] As shown in Figure 2 , the number of belt pulleys 9 is two groups, the two groups of belt pulleys 9 are rotatably connected with the conveying belt 10, and the output end of the first motor 12 is fixedly connected with one of the two groups of belt pulleys 9, so that the stable transmission and synchronous transmission effect of power are realized by arranging two groups of belt pulleys 9 and connecting them by the conveying belt 10.

[0025] As shown in Figure 4 , the sliding block 17 is slidably connected with the limiting rod 13, and the long plate 24 is slidably connected with the limiting column 21, so that the sliding block 17 is provided with accurate linear motion guide through the sliding connection between the sliding block 17 and the limiting rod 13, and the movement of the long plate 24 is provided with reliable guide and limiting action through the sliding connection between the long plate 24 and the limiting column 21.

[0026] As shown in Figure 4 , one end of the lead screw two 23 away from the C-shaped frame 20 is rotatably connected with the bottom plate 19, and one end of the limiting column 21 away from the C-shaped frame 20 is fixedly connected with the bottom plate 19, so that the stability and smoothness of the lead screw two 23 in the rotating process are ensured through the rotatable connection between the lead screw two 23 and the bottom plate 19, the vibration and deviation caused by unstable connection are reduced, the stable movement of the long plate 24 under the driving of the lead screw two 23 is ensured, and the precision and reliability of the long plate 24 in the movement process are further ensured through the fixed connection between the limiting column 21 and the bottom plate 19.

[0027] As shown in Figure 1 , the bottom of the frame 1 is symmetrically fixedly installed with the cushion block 29, and the cushion block 29 plays a supporting role.

[0028] As shown in Figures 2-3As shown, the two sides of the sliding plate 3 are provided with sliding holes 26, and the outer side of the crossbar 2 is uniformly provided with screw holes 27. The screw holes 27 are internally threadedly connected with locking bolts 28. By pushing the sliding plate 3 to the left or to the right, the sliding plate 3 is made to slide on the crossbar 2. After sliding for a proper distance, the sliding holes 26 on the two sides of the sliding plate 3 are aligned with the screw holes 27 on the outer side of the crossbar 2. After alignment, the locking bolts 28 are screwed into the screw holes 27 through the sliding holes 26, thereby fixing the position of the sliding plate 3. This design realizes the spacing adjustment function of the jig one 5 and the jig two 8, and provides great convenience for adapting to pressure containers of different sizes.

[0029] As shown in Figure 3 The locking bolt 28 is in sliding connection with the sliding hole 26, and the sliding connection makes the locking bolt 28 more convenient to install and disassemble.

[0030] The working principle of the embodiment is as follows: in use, first, two pressure containers are respectively placed on two sets of jigs two 8, and then two sets of telescopic cylinders 4 are started, and when the two sets of telescopic cylinders 4 work, they will push two sets of jigs one 5 to approach the two sets of pressure containers, and through the cooperation of the two sets of jigs one 5 and the two sets of jigs two 8, the stable clamping of the two pressure containers is realized. After clamping, the first motor 12 is started, and when the first motor 12 works, one of the belt pulleys 9 will rotate, and one of the belt pulleys 9 will drive the other belt pulley 9 to rotate through the conveying belt 10 in the process of rotation, and the two belt pulleys 9 will drive the corresponding shafts 7 to rotate in the process of rotation, so that the jigs two 8 rotate, realizing the synchronous rotation of the two pressure containers, and providing a stable movement basis for circumferential welding. After the two pressure containers rotate synchronously, the second motor 15 is started, and when the second motor 15 works, the lead screw one 16 will rotate, and in the process of rotation, the sliding block 17 will slide left and right along the limiting rod 13, so as to accurately adjust the position of the electric telescopic rod 18 and the lower welding component, and after adjusting the appropriate position, the second motor 15 is closed, and then the third motor 22 is started in turn, and when the third motor 22 works, the lead screw two 23 will rotate, and in the process of rotation, the long plate 24 will slide left and right on the outer wall of the limiting column 21, and in the process of sliding, the long plate 24 will drive the welding gun 25 to move together, and when the welding gun 25 moves to the welding point position of the pressure container, the third motor 22 can be closed, and then the electric telescopic rod 18 is started, and through the electric telescopic rod 18, the bottom plate 19 and the welding gun 25 move downward together, and after moving a certain distance, the welding gun 25 will approach the welding point position of the pressure container, and after approaching, the electric telescopic rod 18 is closed, and then four welding guns 25 can be used to circumferentially weld the two synchronously rotating pressure containers, and after welding is completed, the welding gun 25 is raised through the electric telescopic rod 18, and after being raised, the telescopic cylinder 4 is controlled to make the jig one 5 away from the pressure container, and after moving away, the welded pressure container can be taken off. When preparing to weld the pressure container, the sliding plate 3 can be pushed left or right according to the size of the pressure container to be welded, so that the sliding plate 3 slides on the cross rod 2, and after sliding a suitable distance, the sliding hole 26 on both sides of the sliding plate 3 is aligned with the screw hole 27 on the outer side of the cross rod 2, and then the locking bolt 28 is screwed into the screw hole 27 through the sliding hole 26, so as to fix the position of the sliding plate 3. This design realizes the spacing adjustment function of the jig one 5 and the jig two 8, and provides great convenience for adapting to pressure containers of different sizes.

[0031] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A circumferential welding device for pressure vessels, comprising a frame (1), characterized in that: The bottom inner side of the frame (1) is symmetrically fixedly installed with a crossbar (2), the outer surface of the crossbar (2) is slidably connected with a sliding plate (3), one side of the sliding plate (3) is symmetrically fixedly installed with a telescopic air cylinder (4), the output end of the telescopic air cylinder (4) is rotatably connected with a jig one (5), the inner side of the crossbar (2) is fixedly installed with a fixed plate (6), the inner part of the fixed plate (6) is symmetrically rotatably connected with a rotating shaft (7), one end of the rotating shaft (7) close to the sliding plate (3) is rotatably connected with a jig two (8), one end of the rotating shaft (7) away from the jig two (8) is fixedly installed with a belt pulley (9), the inner part of the belt pulley (9) is sleeved with a conveying belt (10), one side of the fixed plate (6) away from the sliding plate (3) is fixedly installed with a mounting bracket (11), one side of the mounting bracket (11) away from the fixed plate (6) is fixedly installed with a first motor (12), the top inner side of the frame (1) is fixedly installed with a limiting rod (13), the top of the frame (1) is symmetrically fixedly installed with a connecting plate (14), one side of the connecting plate (14) is fixedly installed with a second motor (15), the output end of the second motor (15) is fixedly installed with a lead screw one (16), the outer wall of the lead screw one (16) is threadedly connected with a sliding block (17), the bottom of the sliding block (17) is fixedly installed with an electric telescopic rod (18), the output end of the electric telescopic rod (18) is fixedly installed with a bottom plate (19), both sides of the bottom plate (19) are fixedly installed with a C-shaped bracket (20), the inner side of the C-shaped bracket (20) is symmetrically fixedly installed with a limiting column (21), one side of the C-shaped bracket (20) is fixedly installed with a third motor (22), the output end of the third motor (22) is fixedly installed with a lead screw two (23), the outer wall of the lead screw two (23) is threadedly connected with a long plate (24), the inner part of the long plate (24) is symmetrically fixedly installed with a welding gun (25).

2. The circumferential welding device for pressure vessels according to claim 1, characterized in that: The number of the belt pulleys (9) is two groups, and each of the two groups of belt pulleys (9) is rotatably connected with the conveying belt (10), and the output end of the first motor (12) is fixedly connected with one of the two groups of belt pulleys (9).

3. The apparatus for circumferential welding of a pressure vessel of claim 1, wherein: The sliding block (17) is slidably connected with the limiting rod (13), and the long plate (24) is slidably connected with the limiting column (21).

4. The apparatus for circumferential welding of a pressure vessel of claim 1, wherein: One end of the lead screw two (23) away from the C-shaped bracket (20) is rotatably connected with the bottom plate (19), and one end of the limiting column (21) away from the C-shaped bracket (20) is fixedly connected with the bottom plate (19).

5. The apparatus for circumferential welding of a pressure vessel of claim 1, wherein: The bottom of the frame (1) is symmetrically fixedly installed with a pad (29).

6. The apparatus for circumferential welding of a pressure vessel of claim 1, wherein: Slip holes (26) are formed through both sides of the sliding plate (3), screw holes (27) are uniformly formed in the outer side of the crossbar (2), and lock bolts (28) are threadedly connected in the screw holes (27).

7. The apparatus for circumferential welding of a pressure vessel of claim 6, wherein: The lock bolts (28) are slidably connected with the slip holes (26).

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