Auxiliary clamping device for tank welding

Abstract

The utility model provides an auxiliary clamping device for tank welding, and relates to the technical field of auxiliary welding devices, the auxiliary clamping device comprises two clamping tables and two positioning hoops, the bottoms of the two clamping tables are provided with moving rollers, and each clamping table is provided with two groups of supporting roller assemblies; a plate tank body to be welded is rotatably supported on the supporting roller assembly of the clamping table, and the two positioning hoops are respectively hooped on the two half tank bodies to be welded and are fixed by a plurality of long threaded rods. The welding device has the advantages that the clamping table can move through the moving rollers, and the distance between the welding ends of the two to-be-welded half tank bodies is adjusted, so that the welding seam distance meets the requirement; the structure of the positioning hoop and the long threaded rod ensures that the two to-be-welded half tank bodies rotate relatively in the welding process, and the welding quality is ensured; and meanwhile, the to-be-welded half tank bodies are supported through the supporting roller assemblies, so that the two fixed half tank bodies can synchronously rotate, workers can conveniently weld welding seams located on the lower portion, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding auxiliary devices, in particular to a welding auxiliary clamping device for a tank body. Background Technique

[0002] In the industrial field, especially in the chemical industry, a large number of tank containers of various sizes are needed, such as evaporation tanks, fractionation tanks, etc. These tank bodies are usually of a cylindrical structure, and different components are installed inside according to their uses. In the process of manufacturing the tank body, it is first necessary to make a semi-tank body structure, then install the internal components of the tank body in the semi-tank body, and finally weld the welding ends of the two semi-tank bodies together to complete the manufacturing of the tank container; the tank body is large in size, and it is difficult for the existing fixtures to adjust the weld seam between the semi-tank bodies. At the same time, the installation of the semi-tank body is usually horizontal, and the weld seam at the lower part is difficult to carry out, and it is easy to have problems with clamping the cylindrical structure of the semi-tank body. Therefore, in order to improve the welding efficiency of the tank body and improve the welding quality of the tank body, a welding auxiliary clamping device with a new structure is needed. Content of the Utility Model

[0003] In view of this, the utility model provides a welding auxiliary clamping device for a tank body, which includes two clamping tables and two positioning hoops. Moving rollers are provided at the bottoms of the two clamping tables, and two groups of support roller assemblies are provided on each clamping table.

[0004] Each support roller assembly includes two support arms, both of which are arc-shaped arms. The two support arms of each support roller assembly are symmetrically arranged. Support wheels are provided at both ends of all the support arms, and the support wheels are rotatably arranged on the support arms. The two semi-tank bodies to be welded are respectively supported on the support roller assemblies on the two clamping tables.

[0005] The two positioning hoops are distributed and tightened on the two semi-tank bodies. A plurality of positioning holes are provided on each of the two positioning hoops. The number of positioning holes on the two positioning hoops is the same, and the plurality of positioning holes on the two positioning hoops correspond one by one. The two aligned positioning holes are a set of positioning hole groups. Each set of positioning hole groups is penetrated by a long threaded rod, and a first fastening nut is provided on each long threaded rod. The first fastening nut is located between the two positioning hoops and locks the long threaded rod on one of the positioning hoops.

[0006] Further, each positioning hoop includes two positioning semi-rings and two locking bolts. Locking plates with locking holes are respectively provided at both ends of each positioning semi-ring, and the locking bolts pass through the locking plates to lock and fix the ends of the two positioning semi-rings.

[0007] Further, mounting blocks are provided at the bottoms of both clamping platforms. The two mounting blocks are respectively a fixed mounting block and a movable mounting block. A regulating screw is provided on the fixed mounting block. A transverse movement threaded hole is provided on the movable mounting block. One end of the regulating screw is rotatably connected to the fixed mounting block, and the other end of the regulating screw passes through the transverse movement threaded hole, and the two are in threaded cooperation.

[0008] Further, a rotating handwheel is further provided at the end of the regulating screw passing through the movable mounting block.

[0009] Further, the two positioning hoops are respectively a first positioning hoop and a second positioning hoop. A limiting groove is provided on the first positioning hoop. The end of the long threaded rod is limited in the limiting groove, and the first fastening nut fixes the long threaded rod on the first positioning hoop.

[0010] Further, two second fastening nuts are further provided on the long threaded rod. The two second fastening nuts are respectively located on both sides of the second positioning hoop, and the two second fastening nuts lock and fix the second positioning hoop from both sides.

[0011] Further, each support arm includes two spaced-apart mounting support plates, and the support wheel is rotatably mounted between the two mounting support plates.

[0012] Further, the support arm is fixedly connected to the clamping platform through a support seat with a triangular block structure.

[0013] The beneficial effects of a welding auxiliary clamping device for a tank body of the present utility model are as follows: The welding auxiliary clamping device for a tank body includes two clamping platforms and two positioning hoops. Moving rollers are provided at the bottoms of both clamping platforms, and two groups of support roller assemblies are provided on each clamping platform. The plate tank body to be welded can be rotatably supported on the support roller assemblies of the clamping platform. The two positioning hoops are respectively tightened on the two semi-tank bodies to be welded, and the two positioning hoops are fixed by multiple long threaded rods. In the above structure, the clamping platform can be moved through the moving rollers to adjust the distance between the welding ends of the two semi-tank bodies to be welded so that the weld distance meets the requirements. The positioning hoop and long threaded rod structure ensure that the two semi-tank bodies to be welded rotate relative to each other during the welding process, ensuring the welding quality. At the same time, the semi-tank bodies to be welded are supported by the support roller assemblies, so that the fixed two semi-tank bodies can rotate synchronously, facilitating the staff to weld the weld seam located below, and improving the welding efficiency. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a welding auxiliary clamping device for a tank body in an embodiment of the present utility model during operation.

[0015] Figure 2 is Figure 1 the A-direction view of the welding auxiliary clamping device for the tank body in

[0016] In the above figures: 1 - clamping table, 11 - moving roller, 12 - fixed mounting block, 13 - moving mounting block, 2 - support arm, 21 - support base, 3 - support wheel, 4 - semi-tank body, 5 - positioning hoop, 51 - locking bolt, 52 - long threaded rod, 53 - first fastening nut, 54 - second fastening nut, 6 - adjusting screw rod, 61 - limiting sleeve, 62 - adjusting handwheel. Detailed implementation mode

[0017] To make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0018] Please refer to Figure 1 and Figure 2 , a tank body welding auxiliary clamping device of the present utility model includes two clamping tables 1 and two positioning hoops. A plurality of moving rollers 11 are provided at the bottom of each of the two clamping tables 1. The moving rollers 11 are all universal wheels, and the moving rollers 11 facilitate the movement of the clamping table 1 to adjust the distance between the two semi-tank bodies 4 on the two clamping tables 1 so as to meet the weld width requirements.

[0019] Two sets of support roller assemblies are provided on each clamping table 1; each support roller assembly includes two support arms 2. The two support arms 2 are both arc-shaped arms. The arc-shaped arms 2 are fixedly connected to the clamping table 1 by welding through support bases 21 with a triangular block structure. The two support arms 2 of each support roller assembly are symmetrically arranged. Support wheels 3 are provided at both ends of all the support arms 2. Each support arm includes two spaced-apart mounting support plates. The support wheel 3 is rotatably installed between the two mounting support plates, so that the support wheel 3 is rotatably arranged on the support arm 2. The two semi-tank bodies 4 to be welded are respectively supported on the support roller assemblies on the two clamping tables 1; specifically, each support arm 2 has two spaced-apart support plates. A rotating shaft is axially provided on the support wheel 3, and both ends of the rotating shaft rotatably pass through the two support plates respectively, so that the support wheel 3 is rotatably arranged between the two support plates. The semi-tank body 4 to be welded is supported on the support wheel 3, which facilitates the rotation of the semi-tank body 4 on the clamping table 1, so that the staff can synchronously rotate the two semi-tank bodies 4 to weld the weld located below the semi-tank body 4.

[0020] The two positioning hoops 5 are distributed and tightened on the two semi-tank bodies 1. A plurality of positioning holes are provided on each of the two positioning hoops. The number of positioning holes on the two positioning hoops 5 is the same, and the plurality of positioning holes on the two positioning hoops 5 correspond to each other one by one. Two mutually aligned positioning holes form a set of positioning hole groups. Each set of positioning hole groups is penetrated by a long threaded rod 52. A first fastening nut 53 is provided on each long threaded rod 52. The first fastening nut 53 is located between the two positioning hoops 5, and the first fastening nut 53 locks the long threaded rod 52 on one of the positioning hoops 5.

[0021] Preferably, each positioning hoop 5 includes two positioning half-rings and two locking bolts 51. Each end of each positioning half-ring 51 is respectively provided with a locking plate with a locking hole, and the locking bolts 51 pass through the locking plates to lock and fix the ends of the two positioning half-rings.

[0022] The two positioning hoops 5 are respectively the first positioning hoop and the second positioning hoop. There is no thread in the positioning holes on the two positioning hoops. A limiting groove is provided on the first positioning hoop. The end of the long threaded rod has a limiting block. Both the limiting block and the limiting groove are regular hexagonal prism blocks (that is, the long threaded rod 52 has a hexagonal bolt structure). The limiting block at the end of the long threaded rod 52 is limited in the limiting groove. The first fastening nut 61 fixes the long threaded rod 52 on the first positioning hoop. Two second fastening nuts 54 are further provided on the long threaded rod 52. The two second fastening nuts 54 are respectively located on both sides of the second positioning hoop. The two second fastening nuts 54 lock and fix the second positioning hoop from both sides. The long threaded rod 52 and the first and second fastening nuts lock and fix the two semi-tanks 4 to be welded to prevent relative displacement during the welding process.

[0023] Preferably, mounting blocks are provided at the bottoms of the two clamping tables 1. The two mounting blocks are respectively a fixed mounting block 12 and a movable mounting block 13. A regulating screw 6 is provided on the fixed mounting block 12. A transverse movement threaded hole is provided on the movable mounting block 13. One end of the regulating screw 6 is rotatably connected to the fixed mounting block 12 and is limited by two limiting sleeves 61. The other end of the regulating screw 6 passes through the transverse movement threaded hole of the movable mounting block 13, and the two are in threaded cooperation; a rotating handwheel 62 is further provided at the end of the regulating screw 6 passing through the movable mounting block 13. The regulating screw 6 can quickly and accurately adjust the distance between the two clamping tables 1 so as to adjust the weld width between the two semi-tanks 4 to be welded.

[0024] The working process of an auxiliary clamping device for can body welding in the present utility model is as follows: The two semi-can bodies 4 to be welded are respectively placed on the support roller assemblies of the two clamping tables 1 by means of hoisting, and the welding ends of the two semi-can bodies 4 to be welded are close to each other; Rotate the adjusting handwheel 62 to adjust the distance between the two clamping tables 1 so that the distance between the welding ends of the two semi-can bodies 4 to be welded reaches a predetermined distance (this distance is the predetermined weld width); Fasten the two positioning hoops 5 respectively on the two semi-can bodies 4 to be welded, pass the long threaded rod 52 through the corresponding holes on the two positioning hoops 5, and fix the long threaded rod 52 on one of the positioning hoops 5 through the tightening action of the first fastening nut 53 and the head limiting block structure of the long threaded rod 52, and fix the long threaded rod 52 on the other positioning hoop through the tightening action of the two second fastening nuts 54, so that the two semi-can bodies 4 are fixed together to prevent relative rotation between them; Weld the weld; Remove the two positioning hoops 5 and the long threaded rod 52, and synchronously rotate the two semi-can bodies 4 to continue welding the remaining welds blocked by the long threaded rod 52 and located below the semi-can body 4, so as to complete the welding of the two semi-can bodies 4 into a can body structure.

[0025] In this article, the orientation words such as front, back, up, and down involved are defined based on the positions of the components in the drawings and the positions of the components relative to each other, only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the orientation words should not limit the scope of protection claimed in this application.

[0026] Without conflict, the above embodiments and the features in the embodiments in this article can be combined with each other.

[0027] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tank welding auxiliary clamping device, characterized in that: It includes two clamping platforms and two positioning hoops. The bottoms of the two clamping platforms are provided with moving rollers. Each clamping platform is provided with two sets of supporting roller assemblies. Each supporting roller assembly includes two supporting arms, both supporting arms are arc-shaped arms, and the two supporting arms of each supporting roller assembly are symmetrically arranged. Both ends of all supporting arms are provided with supporting wheels, and the supporting wheels are rotatably arranged on the supporting arms. The two half tank bodies to be welded are respectively supported on the supporting roller assemblies on the two clamping tables; The two positioning hoops are distributed and tightened on the two half tank bodies. Multiple positioning holes are provided on the two positioning hoops. The number of positioning holes on the two positioning hoops is the same, and the multiple positioning holes on the two positioning hoops correspond to each other one by one. The two positioning holes aligned with each other form a group of positioning holes. Each positioning hole group is penetrated by a long threaded rod. Each long threaded rod is provided with a first fastening nut. The first fastening nut is located between the two positioning hoops to lock the long threaded rod on one of the positioning hoops.

2. The tank welding auxiliary clamping device according to claim 1 is characterized in that: Each positioning hoop comprises two positioning half rings and two locking bolts. A locking plate with a locking hole is respectively arranged at both ends of each positioning half ring. The locking bolt passes through the locking plate to lock and fix the ends of the two positioning half rings.

3. The tank welding auxiliary clamping device according to claim 1 is characterized in that: There are mounting blocks at the bottom of the two clamping tables, which are a fixed mounting block and a movable mounting block respectively. The fixed mounting block is provided with an adjusting screw, and the movable mounting block is provided with a transverse threaded hole. One end of the adjusting screw is rotatably connected to the fixed mounting block, and the other end of the adjusting screw passes through the transverse threaded hole, and the two are matched by threads.

4. The tank welding auxiliary clamping device according to claim 3 is characterized in that: The end of the adjusting screw passing through the movable mounting block is also provided with a rotating hand wheel.

5. The tank welding auxiliary clamping device according to claim 1 is characterized in that: The two positioning hoops are respectively a first positioning hoop and a second positioning hoop. The first positioning hoop is provided with a limiting groove, and the end of the long threaded rod is limited in the limiting groove. The first fastening nut fixes the long threaded rod to the first positioning hoop.

6. The tank welding auxiliary clamping device according to claim 5, characterized in that: The long threaded rod is also provided with two second fastening nuts, which are respectively located on both sides of the second positioning hoop, and the two second fastening nuts lock and fix the second positioning hoop from both sides.

7. The tank welding auxiliary clamping device according to claim 1 is characterized in that: Each of the support arms comprises two spaced apart mounting support plates, and the support wheel is rotatably mounted between the two mounting support plates.

8. The tank welding auxiliary clamping device according to claim 1 is characterized in that: The support arm is fixedly connected to the clamping platform via a support seat with a triangular block structure.

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