CN216882502U

CN216882502U - Visual nuclear fuel rod welding machine

Info

Publication number: CN216882502U
Application number: CN202220507370.4U
Authority: CN
Inventors: 孟令江; 雷超; 谢筱玮
Original assignee: Chengdu Ruibo Electric Industrial Co ltd
Current assignee: Chengdu Ruibo Electric Industrial Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-05
Anticipated expiration: 2032-03-09

Abstract

The utility model discloses a visual nuclear fuel rod welding machine, which relates to the field of nuclear fuel rod welding and comprises a machine body, wherein the upper end of the machine body is fixedly connected with a rotating support in bilateral symmetry, the upper end of the rotating support is provided with a rod rotating assembly, the front end of the plate rod rotating assembly is fixedly provided with a three-jaw chuck, one side of the upper end of the machine body is fixedly connected with a transverse moving slide rail, the transverse moving slide rail is connected with a transverse moving slide block in a sliding way, the upper end of the transverse moving slide block is provided with a welding head assembly, and the middle part of the upper end of the machine body is provided with a rod centering device. The utility model has the advantages that: be provided with rod aligning device at fuel rod welding position department and carry out the auxiliary stay aligning to the fuel rod, the stability of fuel rod welding position department when can effectually guaranteeing the welding can effectively prevent that it from taking place offset when welding and leading to welding position deviation to appear, has improved welding quality.

Description

Visual nuclear fuel rod welding machine

Technical Field

The utility model relates to the field of nuclear fuel rod welding, in particular to a visual nuclear fuel rod welding machine.

Background

The electron beam welding machine is important equipment for welding the fuel rod circular weld, has large energy, large fusion depth of the welded weld joint, embellishable function and the like, and is popular among nuclear fuel element manufacturing enterprises at home and abroad. In welding process, chuck centre gripping fuel rod carries out spin welding, because the chuck has the certain distance apart from the fuel rod, if form the cantilever beam apart from the overlength, easily cause the fuel rod to throw when rotatory for the fuel rod can't weld, consequently need support the aligning to fuel rod welding part, take place offset when preventing its welding and lead to welding position deviation to appear, influence welding quality, based on this, this scheme is dedicated to the fact and is proposed a visual nuclear fuel rod welding machine, in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, provide a visual nuclear fuel rod welding machine, this technical scheme has solved foretell chuck centre gripping fuel rod and has carried out spin welding because the chuck has the certain distance apart from the fuel rod, if form the cantilever beam apart from the overlength, easily cause the fuel rod to throw when rotating for the fuel rod can't carry out welded problem.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a visual nuclear fuel rod welding machine comprises a machine body, wherein rotating supports are fixedly connected to the upper end of the machine body in a bilateral symmetry mode, a rod rotating assembly is mounted at the upper end of each rotating support, a three-jaw chuck is fixedly mounted at the front end of each plate and rod rotating assembly, a transverse moving slide rail is fixedly connected to one side of the upper end of the machine body, a transverse moving slide block is connected to the transverse moving slide rail in a sliding mode, a welding head assembly is mounted at the upper end of the transverse moving slide block, and a rod aligning device is mounted in the middle of the upper end of the machine body;

the welding head assembly comprises an installation base, the installation base is fixedly installed on the upper end of the transverse moving sliding block, a cushion block is fixedly connected to the upper end of the installation base, an advancing sliding rail is symmetrically installed at the upper end of the cushion block, an advancing sliding block is slidably connected to the advancing sliding rail, a welding head installation plate is fixedly connected to the upper end of the advancing sliding block, and a visual welding head assembly is fixedly installed at the upper end of the welding head installation plate.

Preferably, visual bonding tool subassembly includes the bonding tool mount pad, bonding tool mount pad front end fixed mounting has the bonding tool, the bonding tool both sides are provided with camera mounting bracket and laser range finder mounting bracket respectively, camera mounting bracket upper end front side fixed mounting has the vision camera, laser range finder mounting bracket upper end front side fixed mounting has laser calibration distancer.

Preferably, rod aligning device includes the base, base fixed mounting is in the organism upper surface, base lower extreme fixed mounting has the lift hydraulic pump, lift hydraulic pump output runs through the base and extends to the base upper end and pass through connecting piece and lifter plate fixed connection, base upper end four corners upwards extends and forms the guide post, the guide post passes through linear bearing and lifter plate sliding connection, lifter plate upper end fixed mounting has rod aligning subassembly.

Preferably, rod aligning subassembly includes the main support, and upper end fixed mounting has the rod backing roll, main support upper end front side fixed mounting has the aligning slide rail, the sliding connection of symmetry has the aligning roller on the aligning slide rail.

Preferably, the middle part of the front side of the main support is fixedly provided with a vertically arranged driving slide rail, the driving slide rail is connected with a driving slide block in a sliding manner, the front side of the driving slide block is hinged with a driving connecting plate, and the other end of the driving connecting plate is hinged with the aligning roller.

Preferably, a driving cylinder seat is installed below the front side of the main support, a driving cylinder is fixedly installed below the driving cylinder seat, and the output end of the driving cylinder is fixedly connected with the driving sliding block through a fisheye connecting piece.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the rod aligning device is arranged at the welding position of the fuel rod to perform auxiliary supporting and aligning on the fuel rod, when the device is used, the driving air cylinder drives the driving sliding block to slide up and down, and then the hinged driving connecting plate drives the aligning roller to synchronously move inwards along the aligning sliding rail to clamp the fuel rod, so that the fuel rod is kept at the central position, and then the vertical position of the fuel rod is adjusted through the lifting hydraulic pump, so that the stability of the welding position of the fuel rod during welding can be effectively ensured, the welding position deviation caused by position deviation during welding can be effectively prevented, and the welding quality is improved.

The visual welding head assembly is adopted to monitor the welding process in real time, the welding seam state in the welding process is detected in real time through the visual camera, the welding position is measured through the laser calibration distance measuring instrument, the stability of the welding seam position is ensured, the tracking observation of the welding process can be realized, the welding parameters can be adjusted in real time conveniently, and the welding quality of the fuel rods is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective view of a weld head assembly of the present invention;

fig. 3 is a schematic perspective view of a bar centering device according to the present invention.

The reference numbers in the figures are:

1. a body; 2. rotating the bracket; 3. a bar rotating assembly; 4. transversely moving the sliding rail; 5. transversely moving the sliding block; 6. a welding head assembly; 601. installing a base; 602. cushion blocks; 603. moving the slide rail forwards; 604. moving the sliding block forwards; 605. a welding head mounting plate; 606. a welding head mounting base; 607. a welding head; 608. a camera mounting bracket; 609. a vision camera; 610. a laser range finder mounting bracket; 611. calibrating a distance meter by laser; 7. a bar centering device; 701. a base; 702. lifting a hydraulic pump; 703. a connecting member; 704. a lifting plate; 705. a main support; 706. a bar material supporting roller; 707. aligning slide rails; 708. a self-aligning roller; 709. driving the slide rail; 710. driving the slide block; 711. a drive connection plate; 712. the cylinder is driven.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-3, a visual nuclear fuel rod welding machine comprises a machine body 1, wherein the upper end of the machine body 1 is fixedly connected with a rotating support 2 in bilateral symmetry, a rod rotating assembly 3 is installed at the upper end of the rotating support 2, a three-jaw chuck is fixedly installed at the front end of the plate rod rotating assembly 3, one side of the upper end of the machine body 1 is fixedly connected with a transverse sliding rail 4, a transverse sliding block 5 is slidably connected onto the transverse sliding rail 4, a welding head assembly 6 is installed at the upper end of the transverse sliding block 5, and a rod centering device 7 is installed in the middle of the upper end of the machine body 1;

wherein, the welding head assembly 6 comprises an installation base 601, the installation base 601 is fixedly installed at the upper end of the transverse sliding block 5, the upper end of the installation base 601 is fixedly connected with a cushion block 602, the upper end of the cushion block 602 is symmetrically and fixedly provided with a forward sliding rail 603, the forward sliding rail 603 is connected with a forward sliding block 604 in a sliding manner, the upper end of the forward sliding block 604 is fixedly connected with a welding head installation plate 605, the upper end of the welding head installation plate 605 is fixedly provided with a visual welding head assembly, the visual welding head assembly comprises a welding head installation seat 606, the front end of the welding head installation seat 606 is fixedly provided with a welding head 607, two sides of the welding head 607 are respectively provided with a camera installation frame 608 and a laser range finder installation frame 610, the front side of the upper end of the camera installation frame 608 is fixedly provided with a vision camera 609, the front side of the upper end of the laser range finder installation frame 610 is fixedly provided with a laser calibration range finder 611, during welding, the welding head assembly 6 is moved to a welding position through the transverse sliding block 5, welding head 607 and fuel rod welding position department butt when later antedisplacement bonding tool mounting panel 605, later drive the fuel rod through rotating assembly 3 and rotate, make bonding head 607 weld the fuel rod, among the welding process, through the welding seam state of vision camera 609 real-time detection welding process, carry out welding position's survey through laser calibration distancer 611, guarantee the stability of welding seam position.

The rod aligning device 7 comprises a base 701, the base 701 is fixedly installed on the upper surface of the machine body 1, a lifting hydraulic pump 702 is fixedly installed at the lower end of the base 701, the output end of the lifting hydraulic pump 702 penetrates through the base 701 and extends to the upper end of the base 701 to be fixedly connected with a lifting plate 704 through a connecting piece 703, four corners of the upper end of the base 701 extend upwards to form guide columns, the guide columns are slidably connected with the lifting plate 704 through linear bearings, a rod aligning assembly is fixedly installed at the upper end of the lifting plate 704, the rod aligning assembly is driven to move up and down through the lifting hydraulic pump 702, and the coaxiality of fuel rods is guaranteed;

the rod aligning assembly comprises a main support 705, a rod supporting roller 706 is fixedly installed at the upper end of the main support 705, an aligning slide rail 707 is fixedly installed at the front side of the upper end of the main support 705, aligning rollers 708 are symmetrically and slidably connected to the aligning slide rail 707, a vertically arranged driving slide rail 709 is fixedly installed at the middle part of the front side of the main support 705, a driving slide block 710 is slidably connected to the driving slide rail 709, a driving connecting plate 711 is hinged to the front side of the driving slide block 710, the other end of the driving connecting plate 711 is hinged to the aligning rollers 708, a driving cylinder seat is installed below the front side of the main support 705, a driving cylinder 712 is fixedly installed below the driving cylinder seat, the output end of the driving cylinder 712 is fixedly connected to the driving slide block 710 through a fish eye connecting piece, the driving slide block 710 is driven to slide up and down through the driving cylinder 712, and the aligning rollers 708 are driven to synchronously move inwards along the aligning slide rail 709 through the hinged driving connecting plate 711 to clamp the fuel rods, maintaining the fuel rod in a centered position.

The using process of the utility model is as follows: firstly, a fuel rod to be welded is installed on a rotating assembly 3 and fixed through a three-jaw chuck, then a lifting hydraulic pump 702 drives a rod aligning assembly to move up and down, a rod supporting roller 706 is abutted with the fuel rod for supporting, then a driving cylinder 712 drives a driving slide block 710 to slide up and down, further a hinged driving connecting plate 711 drives an aligning roller 708 to synchronously move inwards along an aligning slide rail 709 to clamp the fuel rod, so that the fuel rod keeps a central position, then the lifting hydraulic pump 702 adjusts the vertical position of the fuel rod to ensure the coaxiality of the fuel rod, then a welding head assembly 6 is moved to a welding position through a transverse slide block 5, then a welding head 607 is abutted with the welding position of the fuel rod when the welding head mounting plate 605 is moved forwards, then the rotating assembly 3 drives the fuel rod to rotate, so that the welding head 607 welds the fuel rod, in the welding process, the welding seam state in the welding process is detected in real time through the vision camera 609, and the welding position is measured through the laser calibration distance meter 611, so that the stability of the welding seam position is ensured.

In summary, the utility model has the advantages that: be provided with rod aligning device in fuel rod welding position department and carry out the auxiliary stay aligning to the fuel rod, the stability of fuel rod welding position department when can effectual assurance welding can effectively prevent that it from taking place offset when welding and leading to welding position deviation to appear, has improved welding quality.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The visual nuclear fuel rod welding machine is characterized by comprising a machine body (1), wherein the upper end of the machine body (1) is fixedly connected with a rotating support (2) in bilateral symmetry, a rod rotating assembly (3) is installed at the upper end of the rotating support (2), a three-jaw chuck is fixedly installed at the front end of the rod rotating assembly (3), one side of the upper end of the machine body (1) is fixedly connected with a transverse sliding rail (4), a transverse sliding block (5) is connected onto the transverse sliding rail (4) in a sliding manner, a welding head assembly (6) is installed at the upper end of the transverse sliding block (5), and a rod centering device (7) is installed in the middle of the upper end of the machine body (1);

wherein, bonding tool subassembly (6) are including installation base (601), installation base (601) fixed mounting is in sideslip slider (5) upper end, installation base (601) upper end fixedly connected with cushion (602), the fixed mounting of cushion (602) upper end symmetry has antedisplacement slide rail (603), sliding connection has antedisplacement slider (604) on antedisplacement slide rail (603), antedisplacement slider (604) upper end fixedly connected with bonding tool mounting panel (605), bonding tool mounting panel (605) upper end fixed mounting has visual bonding tool subassembly.

2. The visual nuclear fuel rod welding machine according to claim 1, wherein the visual welding head assembly comprises a welding head mounting seat (606), a welding head (607) is fixedly mounted at the front end of the welding head mounting seat (606), a camera mounting frame (608) and a laser range finder mounting frame (610) are respectively arranged on two sides of the welding head (607), a visual camera (609) is fixedly mounted on the front side of the upper end of the camera mounting frame (608), and a laser calibration range finder (611) is fixedly mounted on the front side of the upper end of the laser range finder mounting frame (610).

3. The visual nuclear fuel rod welding machine as claimed in claim 1, wherein the rod centering device (7) comprises a base (701), the base (701) is fixedly installed on the upper surface of the machine body (1), a lifting hydraulic pump (702) is fixedly installed at the lower end of the base (701), the output end of the lifting hydraulic pump (702) penetrates through the base (701) and extends to the upper end of the base (701) to be fixedly connected with a lifting plate (704) through a connecting piece (703), four corners of the upper end of the base (701) extend upwards to form guide columns, the guide columns are slidably connected with the lifting plate (704) through linear bearings, and a rod centering assembly is fixedly installed at the upper end of the lifting plate (704).

4. The visual nuclear fuel rod welding machine as claimed in claim 3, wherein the rod aligning assembly comprises a main support (705), a rod supporting roller (706) is fixedly installed at the upper end of the main support (705), an aligning slide rail (707) is fixedly installed at the front side of the upper end of the main support (705), and the aligning slide rail (707) is symmetrically and slidably connected with the aligning roller (708).

5. The visual nuclear fuel rod welding machine as claimed in claim 4, wherein a vertically arranged driving sliding rail (709) is fixedly installed in the middle of the front side of the main support (705), a driving sliding block (710) is connected onto the driving sliding rail (709) in a sliding manner, a driving connecting plate (711) is hinged to the front side of the driving sliding block (710), and the other end of the driving connecting plate (711) is hinged to the aligning roller (708).

6. The visual nuclear fuel rod welding machine as claimed in claim 5, wherein a driving cylinder seat is installed below the front side of the main support (705), a driving cylinder (712) is fixedly installed below the driving cylinder seat, and the output end of the driving cylinder (712) is fixedly connected with the driving sliding block (710) through a fisheye connecting piece.