Automatic pipe flange welding device

Abstract

The application discloses a kind of pipe flange automatic welding device, including pipe flange body and for driving pipe flange body rotation drive mechanism, drive mechanism includes two groups of roller stand, two groups of roller stand inside are installed with rolling shaft, and the both ends of rolling shaft are provided with connecting plate respectively, connecting plate other end is provided with four groups of fixed support, and between by bolt connection, pipe flange body is located in four groups of fixed support middle, every fixed support is all screw thread connection with the fixed screw of towards pipe flange body;Connecting plate includes inner disc and outer ring, and four groups of equal distribution connecting strips are connected between inner disc and outer ring, and every connecting strip is all slidably installed with moving block, and the inside center of moving block is provided with the hole for bolt to penetrate.Having replaced the rotation of submerged-arc welding machine welding gun by the free rotation of the pipe flange, the application can also simultaneously weld at both ends, which can not only improve work efficiency, but also improve welding quality and forming quality.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of pipe flange welding, in particular to a pipe flange automatic welding device. BACKGROUND

[0002] Since the emergence of petroleum resources, it has played a great role in promoting the development of world economy, and is an important part of people's daily life and work. Petroleum chemical products promote the development of economy, and the development of economy also lays a solid foundation for the production of petroleum chemical products. In order to better meet the demand of people for petroleum chemical products, petroleum chemical enterprises have continuously improved the production capacity of products, thus creating the rapid development of pressure vessel manufacturing industry.

[0003] In the pressure vessel manufacturing industry, the welding of pipe flange is an essential link. Due to the influence of the structure characteristics of the pipe flange, the welding gun of the submerged arc automatic welding machine cannot rotate freely, and manual electric arc welding is usually used, which is low in efficiency and the welding quality is greatly affected by human factors, and the weld forming is not beautiful. SUMMARY

[0004] The technical scheme of the present application provides a significantly different solution from the prior art to solve the technical problem that the pipe flange cannot be automatically welded.

[0005] The technical scheme adopted by the present application to solve the above technical problem is:

[0006] A pipe flange automatic welding device, comprising a pipe flange body and a driving mechanism for driving the pipe flange body to rotate, the driving mechanism comprising two groups of roller frames, two groups of the roller frames are internally provided with rolling shafts, the two ends of the rolling shafts are respectively provided with connecting plates, the other end of the connecting plate is provided with four groups of fixed supports, and the connecting plate and the four groups of fixed supports are connected by bolts, the pipe flange body is located in the middle of the four groups of fixed supports, and a fixed screw towards the pipe flange body is threadedly connected to each of the fixed supports; the connecting plate comprises an inner disc and an outer ring, four groups of equally distributed connecting strips are connected between the inner disc and the outer ring, a moving block is slidingly installed on each of the connecting strips, and a hole for the bolt to penetrate is provided in the center of the moving block.

[0007] Preferably, the connecting plate is welded on the rolling shaft, and the inner disc, the outer ring and the axis of the rolling shaft are on the same straight line.

[0008] Preferably, a sliding slot is arranged in the center of the connecting strip, the moving block slides in the sliding slot, expansion slots are arranged on both sides of the sliding slot, a screw rod is rotatably arranged in each expansion slot, lifting blocks are threadedly connected to the two screw rods, and the two lifting blocks are connected to the two sides of the moving block.

[0009] Preferably, an internal gear is rotatably arranged in the outer ring, the internal gear is engaged with a plurality of external gears, each external gear is connected to a first bevel gear at the shaft center, the first bevel gear is engaged with a second bevel gear at one side, and a connecting rod is connected at the shaft center between the second bevel gear and the adjacent screw rod.

[0010] Preferably, a ring groove is arranged on the surface of the outer ring, and a driving rod slides on the ring groove, and the driving rod is arranged on the side wall of the internal gear.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] (1) The rolling shaft is driven to rotate by the rotation of the rolling wheel frame, the rotation of the rolling shaft drives the rotation of the connecting plate, and the rotation of the connecting plate drives the rotation of the fixed support, and the rotation of the fixed support drives the rotation of the pipe flange body, thereby replacing the defect that the submerged arc automatic welding machine welding gun cannot rotate freely, so that the pipe flanges at both ends can not only replace the rotation of the submerged arc welding machine welding gun with the free rotation of the pipe flanges, but also can be welded simultaneously at both ends, which not only improves the work efficiency, but also improves the welding quality and forming quality.

[0013] (2) The internal gear is driven to rotate by the driving rod, all the external gears are driven to rotate, the external gears drive the connecting rod to rotate through the first bevel gear and the second bevel gear, the connecting rod drives the screw rod to move, and the lifting blocks are moved, so that the moving blocks are moved, only the driving rod is needed to simultaneously adjust the four moving blocks, without the remaining steps, the use convenience is increased, and the four moving blocks are simultaneously moved towards or away from the center of the inner disc, the moving distances are the same, so that the adjustment accuracy is ensured, and the misalignment of the pipe flange body and the rolling shaft axis is avoided.

[0014] The present application will be explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a schematic diagram of the connecting plate structure of the present application.

[0017] Figure 3 It is a schematic diagram of the connecting strip structure of the present application.

[0018] Figure 4 Figure 1 is a schematic diagram of the outer ring local structure of the present application.

[0019] BRIEF DESCRIPTION OF DRAWINGS: 1, pipe flange body; 2, fixed screw; 3, bolt; 4, roller frame; 5, connecting plate; 501, inner disc; 502, outer ring; 503, connecting strip; 504, moving block; 505, sliding groove; 506, screw rod; 507, lifting block; 508, inner gear; 509, outer gear; 510, first bevel gear; 511, second bevel gear; 512, connecting rod; 513, drive rod; 6, rolling shaft; 7, fixed support. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar terms as used herein are for the purpose of description only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0023] Please refer to the accompanying drawings Figure 1 The present application provides a technical solution: a pipe flange automatic welding device, comprising a pipe flange body 1 and a driving mechanism for driving the pipe flange body 1 to rotate, the driving mechanism comprises two groups of roller frames 4, two groups of the roller frames 4 are internally provided with rolling shafts 6, the rolling shafts 6 are respectively provided with connecting plates 5 at both ends, the connecting plates 5 are provided with four groups of fixed supports 7 at the other end, and the connecting plates 5 and the four groups of fixed supports 7 are connected through bolts 3, the pipe flange body 1 is located in the middle of the four groups of fixed supports 7, and each of the fixed supports 7 is threadedly connected with a fixed screw 2 towards the pipe flange body 1.

[0024] The rolling shaft 6 drives the rotation of the rolling shaft 6 through the rotation of the rolling frame 4, the rotation of the rolling shaft 6 drives the rotation of the connecting plate 5, and the rotation of the connecting plate 5 drives the rotation of the fixed support 7, and the rotation of the fixed support 7 drives the rotation of the pipe flange body 1, so as to replace the defect that the submerged arc automatic welding machine welding gun cannot rotate freely, and the different position connections of the fixed support 7 and the connecting plate 5 can be adjusted according to different specifications of the pipe flange body 1, so as to improve the application range of the device, and the fixing screw 2 is used to strengthen the fixing effect of the pipe flange body 1.

[0025] The connecting plate 5 is welded on the rolling shaft 6, and the inner disc 501, the outer ring 502 and the axis of the rolling shaft 6 are on the same straight line, so as to ensure that no error occurs during processing.

[0026] Please refer to the accompanying drawings Figures 1-4 The connecting plate 5 includes an inner disc 501 and an outer ring 502, four groups of connecting strips 503 are connected between the inner disc 501 and the outer ring 502, a moving block 504 is slidably installed on each connecting strip 503, a hole is formed in the center of the moving block 504 for the bolt 3 to pass through, a sliding groove 505 is formed in the center of the connecting strip 503, and the moving block 504 slides in the sliding groove 505. The moving block 504 can move in the sliding groove 505 at will, so that the position of the fixed support 7 installed on the connecting plate 5 is more selective.

[0027] The sliding groove 505 is provided with an expansion slot on both sides, a screw rod 506 is rotatably installed in each expansion slot, a lifting block 507 is threadedly connected to the two screw rods 506, the two lifting blocks 507 are connected to the two sides of the moving block 504, an internal gear 508 is rotatably installed in the inner ring 502, a plurality of external gears 509 are engaged with the internal gear 508, each external gear 509 is connected to a first bevel gear 510 at the axis, a second bevel gear 511 is engaged with one side of the first bevel gear 510, a connecting rod 512 is connected between the second bevel gear 511 and the adjacent screw rod 506 at the axis, and a ring groove is formed on the surface of the outer ring 502, and a driving rod 513 slides in the ring groove and is installed on the side wall of the internal gear 508. The internal gear 508 is driven to rotate by the driving rod 513, all the external gears 509 are driven to rotate, the external gears 509 drive the connecting rod 512 to rotate through the first bevel gear 510 and the second bevel gear 511, the connecting rod 512 drives the screw rod 506 to select, the lifting block 507 moves, thereby driving the moving block 504 to move, and four moving blocks 504 can be adjusted at the same time by using the driving rod 513, which increases the convenience of use, and the four moving blocks 504 move towards the center of the inner disc 501 or away from the center of the inner disc 501 at the same time, and the moving distance is the same, so as to ensure the accuracy of the adjustment and avoid errors that cause the pipe flange body 1 and the rolling shaft 6 to be misaligned.

[0028] The specific operation flow of the present application is as follows:

[0029] The diameter of the pipe flange body 1 is measured, according to the diameter of the pipe flange body 1, the inner gear 508 is rotated by using the driving rod 513, all the outer gears 509 are rotated, the outer gears 509 rotate the connecting rod 512 through the first bevel gear 510 and the second bevel gear 511, the connecting rod 512 drives the screw rod 506 to select, the lifting block 507 is moved, so as to move the moving block 504, until the distance between the fixed support 7 and the axis of the rolling shaft 6 meets the radius of the pipe flange body 1, then the pipe flange body 1 is installed, the rolling shaft 6 rotates through the rotation of the roller frame 4, so as to rotate the rolling shaft 6, the rotation of the rolling shaft 6 rotates the connecting plate 5, so as to rotate the fixed support 7, the rotation of the fixed support 7 rotates the pipe flange body 1, so as to replace the defect that the submerged arc automatic welding machine welding gun cannot rotate freely.

[0030] The present application is described above by way of example with reference to the accompanying drawings, obviously the specific implementation of the present application is not limited by the above manner, as long as the method concept and technical scheme of the present application are adopted for such non-essential improvement, or the concept and technical scheme of the present application are directly applied to other occasions without improvement, all are within the protection scope of the present application.

Claims

1. A pipe flange automatic welding device comprising a pipe flange body (1) and a driving mechanism for driving the pipe flange body (1) to rotate, characterized in that: The driving mechanism comprises two groups of roller frames (4), the roller frames (4) are internally provided with rolling shafts (6), the rolling shafts (6) are provided with connecting plates (5) at two ends, the connecting plates (5) are provided with four groups of fixed supports (7) at the other ends, the connecting plates (5) and the four groups of fixed supports (7) are connected through bolts (3), the pipe flange body (1) is located in the middle of the four groups of fixed supports (7), and the fixed supports (7) are all screw-connected with fixed screws (2) towards the pipe flange body (1); The connecting plate (5) comprises an inner disc (501) and an outer ring (502), the inner disc (501) and the outer ring (502) are connected with four groups of equally-distributed connecting strips (503), the connecting strips (503) are all slidably provided with moving blocks (504), and the moving blocks (504) are internally provided with holes for the bolts (3) to penetrate; The connecting plate (5) is welded on the rolling shaft (6), and the inner disc (501), the outer ring (502) and the rolling shaft (6) are coaxial; The connecting strips (503) are internally provided with sliding grooves (505), the moving blocks (504) slide in the sliding grooves (505), the sliding grooves (505) are provided with expansion grooves at two sides, and the expansion grooves are all rotatably provided with screw rods (506), the screw rods (506) are all screw-connected with lifting blocks (507), and the lifting blocks (507) are connected at two sides of the moving blocks (504); The outer ring (502) is rotatably provided with an internal gear (508), the internal gear (508) is meshed with a plurality of external gears (509), the external gears (509) are all axially connected with first bevel gears (510), the first bevel gears (510) are meshed with second bevel gears (511) at one side, and the second bevel gears (511) and the adjacent screw rods (506) are axially connected with connecting rods (512).

2. The automatic pipe flange welding apparatus according to claim 1, wherein: The outer ring (502) is provided with a ring groove on the surface, and a driving rod (513) slides in the ring groove, and the driving rod (513) is installed on the side wall of the internal gear (508).

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