CN216882536U - Be used for fixed butt joint frock of pressure vessel head welded - Google Patents

Abstract

The utility model discloses a fixed butt joint tool for welding the head of a pressure vessel, which comprises a bracket, a head clamp and a supporting wheel. The support comprises a first worktable and a second worktable, and the head clamp is mounted on the first worktable. The support roller is installed on the second worktable, the head clamp is a ring structure, and a number of threaded sleeves are arranged on the circumference. A splint is movably connected, and the splint is clamped with the end of the head; a plurality of bases are arranged on the upper part of the second worktable, the supporting wheels are symmetrically installed on both ends of the base, and the cylinder is movably placed between the supporting wheels at both ends. The utility model uses the head clamp to clamp the head, and uses the supporting wheel to support the cylinder, avoids multiple lifting when the head and the cylinder are welded, improves the welding and efficiency of the head, and ensures the molding of the pressure vessel. High quality, one person can complete the operation during the welding process, reducing labor costs.

Description

A fixed butt tooling for pressure vessel head welding

technical field

The utility model belongs to the technical field of pressure vessel head welding, in particular to a fixed butt joint tool for pressure vessel head welding.

Background technique

The pressure vessel body generally includes a cylinder body and a head welded on both ends of the cylinder body. When the head and the cylinder body are welded, it is generally necessary to hoist the two, and then the cylinder body and the head are butted and welded; ropes are generally used for hoisting. Or slings, because the heads are mostly oval structures, the hoisting rope or sling can only be tied at the end of the head, causing the center of gravity of the head and the hoisting rope or sling not to be on the same line, resulting in eccentricity of the head. If the head is skewed, it is necessary to manually straighten the head before welding. This process requires the cooperation of at least two workers to complete, and there is a certain risk. In addition, during the welding process of the head and the cylinder, the cylinder needs to be gradually rotated along with the welding seam. It is convenient for welders to weld, and when rotating the cylinder, it is necessary to drop the cylinder and the welded part of the head first, roll the cylinder on the ground, and then lift the cylinder and the head, which not only has low welding efficiency, but also because of the low welding efficiency. The head and the cylinder are only partially welded, and repeated movement of the head and the cylinder will easily cause deformation of the weld, which will affect the molding quality of the pressure vessel.

SUMMARY OF THE INVENTION

The purpose of this utility model is to overcome the deficiencies in the prior art, and to provide a fixed butt tooling for pressure vessel head welding, so as to solve the low welding efficiency of the existing pressure vessel cylinder and head hoisting welding. The problem of unstable molding quality.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

A fixed butt tooling for pressure vessel head welding, comprising a bracket, a head clamp, and a supporting wheel, the bracket includes a first workbench and a second workbench, and the end head clamp is mounted on the first workbench , the supporting wheel is installed on the second worktable, the head clamp is an annular structure, and a number of threaded sleeves are arranged on its circumference, the threaded sleeve is threadedly connected with a screw, and one end of the screw is connected with a first hand wheel, The other end of the screw is movably connected with a splint, and the splint is clamped with the end of the head; the screw is threadedly connected in the threaded sleeve, which realizes the clamping of heads of different diameters and improves the scope of application of the head clamp; the first There are several bases on the upper part of the second worktable, the supporting rollers are symmetrically installed at both ends of the base, and the cylinder is movably placed between the supporting rollers at both ends; during the welding process of the cylinder and the head, when the cylinder needs to be turned over , first loosen the splint of the head clamp from the head, push the cylinder to rotate on the supporting wheel to the position required for welding, and then clamp the head clamp to the head, which improves the welding and efficiency of the head and ensures that The quality of the pressure vessel forming is improved, and the operation can be completed by one person during the welding process, which reduces labor costs.

As a further preference of this technical solution, the splint is made of rubber, which prevents the splint from causing damage to the head, and the side of the splint in contact with the head is an arc surface, which ensures the stability of the clamping between the splint and the head. sex.

As a further preference of this technical solution, the second workbench is provided with a number of guide grooves, the lower part of the base is provided with a slider that is slidably connected to the guide groove, and the two ends of the slider extend out of the base and are connected with fixing bolts for fixing The lower end of the bolt is in contact with the guide groove; the sliding base is convenient for the cylinder body to be placed on the upper part of the supporting wheel, and the cylinder body can be moved left and right to make one end of the cylinder body butt the end of the head.

As a further preference of this technical solution, the head clamp includes a first arc-shaped plate and a second arc-shaped plate, the first arc-shaped plate and one end of the second arc-shaped plate are hinged, and the first arc-shaped plate and the second arc-shaped plate are hinged. The other end of the shaped plate is detachably connected by bolts to facilitate the clamping of the head.

As a further preference of this technical solution, a plurality of support rods are arranged on the upper part of the first worktable, the upper ends of the support rods are hinged with one end of the head clamp, and the lower side of the head clamp is provided with a sloping plate. Several hydraulic cylinders are hinged on the worktable, and the piston rod of the hydraulic cylinder is hinged with the lower part of the swash plate; when the head is clamped, the piston rod of the hydraulic cylinder is first retracted, so that the head clamp is turned to a horizontal state, and then the head is hoisted. into the head clamp, which is convenient for positioning when the head clamp is clamped. After the head clamp is completed, the piston rod of the hydraulic cylinder is extended again, so that the head clamp is turned to a vertical state and docked with the cylinder.

As a further preference of this technical solution, a lifting platform is provided on one side of the bracket, the second worktable is installed on the lifting platform, and a screw elevator is arranged at the lower part of the lifting platform, and the screw elevator is installed on the bracket, and the lifting platform There are guide posts on both sides of the platform, and the guide posts are connected with the beam of the bracket in a gap; the second worktable on the upper part of the lifting platform is driven by a screw elevator to lift and lower, which is convenient to adjust the height of the cylinder to ensure the accuracy of the connection between the cylinder and the head.

As a further preference of this technical solution, supports are provided on both sides of the upper part of the base, a connecting plate is hinged on the support, the supporting rollers are installed at both ends of the connecting plate, and the supporting rollers on both sides of the base are under the gravity of the cylinder. Under the action of the automatic centering, and multiple sets of supporting rollers expand the support area and improve the stability of the cylinder support.

As a further preference of this technical solution, baffles are provided at both ends of the base, an adjustment stud is threadedly connected to the baffle, one end of the adjustment stud is provided with a third hand wheel, and the other end of the adjustment stud passes through a bearing The base is movably connected with the side wall of the support, the base is provided with a guide rail, the lower part of the support is movably connected with the guide rail, and the adjusting stud is convenient to adjust the distance between the supporting rollers on both sides, which is not only suitable for the support of cylinders of different diameters, but also It is convenient to fine-tune the height of the cylinder, and the accuracy of the connection between the cylinder and the head is enhanced.

As a further preference of this technical solution, a driving mechanism is provided on one side of the supporting wheel, and the driving mechanism includes a driving gear, one side of the driving gear is connected with a second hand wheel through a rotating shaft, and two sides of the driving gear are meshed with transition gears One side of the transition gear is meshed with a driven gear, and the driven gear is fixedly connected with the central shaft of the supporting wheel. The driving gear, transition gear and driven gear are all installed on one side of the connecting plate; when the drum needs to rotate , Rotating the second hand wheel uses gear transmission to drive the supporting wheel to rotate, which is convenient to control the rotation angle of the drum.

As a further preference of this technical solution, the lower part of the second worktable is provided with a rotating mechanism, the rotating mechanism includes a rotating sleeve arranged on the upper part of the lifting platform, a bearing is arranged inside the rotating sleeve, and the inner ring of the bearing is fixedly connected There is an insertion rod (not shown in the figure), the upper end of the insertion rod is connected with the lower part of the second worktable, a fixed knob is threaded on one side of the rotating sleeve, and the end of the fixed knob is in contact with the insertion rod; the head of one end is welded After completion, loosen the head clamp and turn it over to separate it from the head, and then turn the second worktable 180° to weld the head on the other side of the cylinder, which avoids repeated hoisting of the cylinder and improves the performance of the head. welding efficiency.

The beneficial effects of the present utility model are:

1) The utility model uses the head clamp to clamp the head, and uses the supporting wheel to support the cylinder, avoids multiple lifting when the head and the cylinder are welded, improves the welding and efficiency of the head, and ensures the pressure. The quality of the container molding can be completed by one person during the welding process, which reduces labor costs.

2) In order to avoid damage such as wear and tear when the head clamp clamps the head, the splint is made of rubber, and the contact surface between the splint and the head is set as an arc surface, which expands the contact area between the splint and the head to ensure The stability system between the splint and the head is provided.

3) The base and the second worktable are set as a sliding connection structure, which is convenient for moving the cylinder body left and right so that one end of the cylinder body is butted with the end of the head.

4) Set the head clamp as an openable structure to facilitate the clamping of the head.

5) The head clamp is set in a reversible form, which is convenient for positioning when the head is clamped, so as to ensure the quality of the head welding.

6) A lifting platform is set on the bracket, the second worktable is set on the lifting platform, and the screw elevator is used to drive the second worktable to rise and fall, which is convenient for adjusting the height of the cylinder to ensure the accuracy of the connection between the cylinder and the head.

7) The supporting roller spacing adjustment mechanism is set on both sides of the base, which is convenient to support cylinders of different diameters, and at the same time, it is convenient to fine-tune the height of the cylinder, and the accuracy of the connection between the cylinder and the head is enhanced.

8) A driving mechanism is set on one of the supporting wheels, and the second hand wheel is used to drive the supporting wheel to rotate, thereby driving the cylinder to rotate, which is convenient to control the rotation speed and rotation angle of the cylinder.

9) A rotating mechanism is arranged at the lower part of the second worktable to make the second worktable rotate, which is convenient for welding the head on the other side of the cylinder, avoids repeated lifting of the cylinder and improves the welding efficiency of the head.

Description of drawings

Fig. 1 is a state diagram of a fixed butt joint tool for welding the head of a pressure vessel according to the present invention.

2 is a schematic structural diagram of a fixed butt tooling for welding of pressure vessel heads according to the present invention.

FIG. 3 is a schematic diagram of the overturned state of the head clamp in a fixed butt joint tool for welding the head of a pressure vessel according to the present invention.

FIG. 4 is a schematic structural diagram of a head clamp in a fixed butt tooling for welding the head of a pressure vessel according to the present invention.

FIG. 5 is a schematic view of the assembly of the lifting platform and the second workbench in a fixed butt joint tool for welding of pressure vessel heads according to the present invention.

FIG. 6 is an exploded view of the second worktable and the supporting wheel in a fixed butt joint tool for welding the head of the pressure vessel according to the present invention.

FIG. 7 is a schematic diagram of the structure of a supporting wheel in a fixed butt tooling for welding of pressure vessel heads according to the present invention.

FIG. 8 is a schematic diagram of the assembly of the lifting platform and the bracket in a fixed butt joint tool for welding the head of the pressure vessel according to the present invention.

In the figure: 1, bracket; 101, first workbench; 102, second workbench; 103, support rod; 104, hydraulic cylinder; 105, guide groove; 2, head clamp; 201, first arc plate; 202, the second arc plate; 203, the threaded sleeve; 204, the screw; 205, the first hand wheel; 206, the splint; 207, the inclined plate; 3, the base; 301, the supporting wheel; 302, the support; connecting plate; 304, guide rail; 305, driving gear; 306, second hand wheel; 307, transition gear; 308, driven gear; 309, adjusting stud; 310, third hand wheel; 311, slider; 312, Fixing bolts; 4. Lifting platform; 401, Screw elevator; 402, Guide post; 403, Rotating sleeve; 404, Fixing knob; 5, Cylinder body; 6, Head.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings 1-8. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inside", "outside" and other indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present utility model, not It is indicated or implied that the referred device or element must have a specific orientation, a specific orientation configuration and operation, and therefore should not be construed as a limitation of the present invention.

As shown in Fig. 1-4 and Fig. 6, a fixed butt tooling for pressure vessel head welding includes a bracket 1, a head clamp 2, and a supporting wheel 301. The bracket 1 includes a first workbench 101 and a first workbench 101. Two worktables 102, the head clamp 2 is installed on the first worktable 101, the supporting roller 301 is installed on the second worktable 102, the head clamp 2 is an annular structure, and a number of threaded sleeves are arranged on its circumference The barrel 203, the threaded sleeve 203 is internally threaded with a screw 204, one end of the screw 204 is connected with a first hand wheel 205, the other end of the screw 204 is movably connected with a splint 206, and the splint 206 is clamped with the end of the head 6; the screw 204 is threadedly connected in the threaded sleeve 203, which realizes the clamping of the heads 6 of different diameters, and improves the application range of the head clamp 2; the upper part of the second worktable 102 is provided with a number of bases 3, and the supporting rollers 301 is symmetrically installed on both ends of the base 3, and the cylinder body 5 is movably placed between the supporting rollers 301 at both ends; during the welding process of the cylinder body 5 and the head 6, when the cylinder body 5 needs to be turned over, the head clamp is first The splint 206 of 2 is loosened from the head 6, and after pushing the cylinder 5 on the supporting wheel 301 to rotate to the position required for welding, the head clamp 2 can be clamped to the head 6, which improves the welding efficiency of the head 6. , to ensure the quality of the pressure vessel forming, one person can complete the operation during the welding process, reducing labor costs.

In this embodiment, the splint 206 is made of rubber, which prevents the splint 206 from causing damage to the head 6, and the side of the splint 206 in contact with the head 6 is an arc surface, which ensures that the splint 206 and the head 6 are curved. 6 Stability of clamping.

As shown in FIG. 6 , in this embodiment, the second worktable 102 is provided with a plurality of guide grooves 105 , the lower part of the base 3 is provided with a sliding block 311 slidably connected with the guide groove 105 , and two sides of the sliding block 311 are provided with a sliding block 311 . The lower end of the fixing bolt 312 is connected with the guide groove 105; the sliding base 3 is convenient for the cylinder 5 to be placed on the upper part of the supporting wheel 301, and the cylinder 5 is moved left and right so that one end of the cylinder 5 is in contact with the guide groove 105. The ends of the head 6 are butted together.

As shown in FIG. 2, in this embodiment, the head clamp 2 includes a first arc-shaped plate 201 and a second arc-shaped plate 202, and the first arc-shaped plate 201 is hinged to one end of the second arc-shaped plate 202, The other ends of the first arc-shaped plate 201 and the second arc-shaped plate 202 are detachably connected by bolts, so as to facilitate the clamping of the head 6 .

As shown in FIG. 1-2 , in this embodiment, a plurality of support rods 103 are provided on the upper part of the first worktable 101 , the upper ends of the support rods 103 are hinged with one end of the head clamp 2 , and the lower part of the head clamp 2 is hinged. There is a swash plate 207 on one side, a plurality of hydraulic cylinders 104 are hinged on the first worktable 101, and the piston rod of the hydraulic cylinder 104 is hinged with the lower part of the swash plate 207; The piston rod is retracted to make the head clamp 2 turn to a horizontal state, and then the head 6 is hoisted into the head clamp 2 to facilitate the positioning of the head clamp 2 during clamping. After the head 6 is clamped, the piston of the hydraulic cylinder 104 The rod is extended again, so that the head clamp 2 is turned over to a vertical state and docked with the cylinder body 5 .

As shown in FIG. 5 and FIG. 8 , in this embodiment, a lifting platform 4 is provided on one side of the bracket 1 , the second worktable 102 is installed on the lifting platform 4 , and a screw is provided at the lower part of the lifting platform 4 The lifter 401 and the screw lifter 401 are installed on the bracket 1, and guide columns 402 are provided on both sides of the lifting platform 4, and the guide columns 402 are connected with the beam of the bracket 1 in a gap; the second workbench on the upper part of the lifting platform 4 is driven by the screw lifter 401 102 lifts up and down, which is convenient for adjusting the height of the cylinder body 5 to ensure the accuracy of the connection between the cylinder body 5 and the head 6 .

As shown in FIG. 7 , in the present embodiment, supports 302 are provided on both sides of the upper part of the base 3 , a connecting plate 303 is hinged on the support 302 , the supporting wheels 301 are installed on both ends of the connecting plate 303 , 3. The supporting rollers 301 on both sides are automatically centered under the action of the gravity of the cylinder body 5, and the multiple groups of supporting rollers 301 expand the supporting area and improve the supporting stability of the cylinder body 5.

As shown in FIG. 7 , in this embodiment, baffles are provided at both ends of the base 3 , an adjustment stud 309 is threadedly connected to the baffle, and one end of the adjustment stud 309 is provided with a third hand wheel 310 . The other end of the adjusting stud 309 is movably connected with the side wall of the support 302 through the bearing seat. The base 3 is provided with a guide rail 304, and the lower part of the support 302 is movably connected with the guide rail 304. The adjusting stud 309 is convenient for adjusting the supporting rollers on both sides. The distance between 301 is not only suitable for the support of cylinders 5 of different diameters, but also facilitates fine-tuning of the height of the cylinders 5 , which enhances the accuracy of the connection between the cylinders 5 and the head 6 .

As shown in FIG. 7 , in this embodiment, a driving mechanism is provided on the supporting wheel 301 on one side, and the driving mechanism includes a driving gear 305 . One side of the driving gear 305 is connected with a second hand wheel 306 through a rotating shaft. Both sides of the driving gear 305 are meshed with a transition gear 307, one side of the transition gear 307 is meshed with a driven gear 308, and the driven gear 308 is fixedly connected with the central axis of the supporting wheel 301. The moving gears 308 are installed on one side of the connecting plate 303; when the drum needs to be rotated, the rotating second hand wheel 306 drives the idler 301 to rotate through gear transmission, so as to control the rotation angle of the drum.

As shown in FIG. 8 , in this embodiment, the lower part of the second worktable 102 is provided with a rotating mechanism, and the rotating mechanism includes a rotating sleeve 403 disposed on the upper part of the lifting platform 4 , and a bearing is provided inside the rotating sleeve 403 , the inner ring of the bearing is fixedly connected with an insertion rod (not shown in the figure), the upper end of the insertion rod is connected with the lower part of the second worktable 102, and a fixed knob 404 is threadedly connected to one side of the rotating sleeve 403, and the fixed knob 404 After the end of the head 6 is welded, the head clamp 2 is loosened and turned over to be separated from the head 6, and then the second worktable 102 is rotated 180° to the other side of the cylinder 5. The sealing head 6 is welded, which avoids repeated lifting of the cylinder body 5 and improves the welding efficiency of the sealing head 6 .

The above content is only an example and description of the structure of the present invention. Those skilled in the art can make various modifications or supplements to the described specific embodiments or replace them in a similar manner, as long as they do not deviate from the present invention. structure or beyond the scope defined by the claims shall belong to the protection scope of the present invention.

Claims (10)

1. A fixed butt tooling for pressure vessel head welding, comprising a bracket, a head clamp, and a supporting wheel, and the support includes a first workbench and a second workbench, characterized in that the head clamp is installed On the first workbench, the supporting roller is installed on the second workbench. The head clamp is an annular structure, and a number of threaded sleeves are arranged on its circumference. The threaded sleeve is threadedly connected with a screw, and one end of the screw is connected to There is a first hand wheel, the other end of the screw is movably connected with a splint, and the splint is clamped with the end of the head; the upper part of the second worktable is provided with a number of bases, the supporting wheels are symmetrically installed on both ends of the base, and the cylinder Actively placed between the rollers at both ends. 2 . The fixed butt tooling for pressure vessel head welding according to claim 1 , wherein the splint is made of rubber, and the surface of the splint in contact with the head is an arc surface. 3 . 3 . The fixed butt tooling for welding of pressure vessel heads according to claim 1 , wherein a plurality of guide grooves are provided on the second worktable, and the lower part of the base is provided with sliding guide grooves. 4 . For the connected sliding block, the two ends of the sliding block protrude from the base and are connected with fixing bolts, and the lower ends of the fixing bolts abut against the guide groove. 4. A fixed butt tooling for pressure vessel head welding according to claim 1, wherein the head clamp comprises a first arc-shaped plate and a second arc-shaped plate, the first arc-shaped plate It is hinged with one end of the second arc-shaped plate, and the first arc-shaped plate and the other end of the second arc-shaped plate are detachably connected by bolts. 5. A fixed butt tooling for pressure vessel head welding according to claim 4, wherein a plurality of support rods are arranged on the upper part of the first worktable, and the upper end of the support rod is connected to one end of the head clamp A sloping plate is arranged on one side of the lower part of the head clamp, a plurality of hydraulic cylinders are hinged on the first worktable, and the piston rod of the hydraulic cylinder is hinged with the lower part of the sloping plate. 6. A fixed butt tooling for pressure vessel head welding according to any one of claims 1 to 5, wherein a lifting platform is provided on one side of the bracket, and the second workbench is installed On the lifting platform, the lower part of the lifting platform is provided with a screw lifter, the screw lifter is installed on the bracket, and the two sides of the lifting platform are provided with guide columns, and the guide columns are connected with the beams of the bracket by gaps. 7 . The fixed butt tooling for welding of pressure vessel heads according to claim 6 , wherein the upper part of the base is provided with supports on both sides, and the support is hinged with a connecting plate and a supporting wheel. 8 . Installed on both ends of the connecting plate. 8 . A fixed butt tooling for welding of pressure vessel heads according to claim 7 , wherein baffle plates are provided at both ends of the base, and adjustment studs are threadedly connected to the baffle plates to adjust the adjustment stud. 9 . One end of the stud is provided with a third handwheel, and the other end of the adjusting stud is movably connected with the side wall of the support through the bearing seat, the base is provided with a guide rail, and the lower part of the support is movably connected with the guide rail. 9 . The fixed butt tooling for welding of pressure vessel heads according to claim 8 , wherein a driving mechanism is provided on the supporting wheel on one side, and the driving mechanism comprises a driving gear, and one side of the driving gear is 1. 10 . A second hand wheel is connected through the rotating shaft, a transition gear is meshed on both sides of the driving gear, a driven gear is meshed with one side of the transition gear, and the driven gear is fixedly connected with the central shaft of the supporting wheel. The gear and the driven gear are installed on one side of the connecting plate. 10 . The fixed butt tooling for welding of pressure vessel heads according to claim 9 , wherein the lower part of the second worktable is provided with a rotating mechanism, and the rotating mechanism comprises a rotating mechanism arranged on the upper part of the lifting platform. The rotating sleeve is provided with a bearing inside the rotating sleeve, the inner ring of the bearing is fixedly connected with a plunger, the upper end of the plunger is connected with the lower part of the second worktable, a fixed knob is threaded on one side of the rotating sleeve, and the fixed knob The end of the stub is against the plunger.

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