CN116598031A - Automatic tubing device and automatic production system of MOX subassembly pellet - Google Patents

Abstract

The invention discloses an automatic MOX assembly pellet tubing device and a production system, wherein the automatic MOX assembly pellet tubing device comprises an MOX pellet feeding mechanism, a depleted uranium pellet feeding mechanism, a cladding tube storage mechanism, a push rod mechanism and a pellet transportation mechanism, the pellet transportation mechanism comprises a first glove box and a pellet transportation assembly, the first glove box is used for moving among a first station, a second station and a third station in the first glove box, the depleted uranium pellet feeding mechanism comprises a depleted uranium pellet feeding assembly and a second glove box, the second glove box is communicated with the first glove box and is used for pushing a depleted uranium pellet after being discharged to the pellet transportation assembly, the MOX pellet feeding mechanism comprises an MOX pellet feeding assembly and a third glove box, the third glove box is communicated with the first glove box and is used for pushing a discharged MOX pellet to the pellet transportation assembly, and the push rod assembly is used for pushing the pellet to the cladding tube. The automation degree of the automatic tubing device for the MOX assembly core blocks is high.

Description

Automatic tubing device and automatic production system of MOX subassembly pellet

Technical Field

The invention belongs to the technical field of nuclear industry, and particularly relates to an automatic MOX assembly core block tubing device and an automatic MOX assembly production system.

Background

The nuclear fuel assembly used in the fast neutron reactor is a MOX fuel assembly, and the MOX assembly consists of a cladding tube, MOX pellets, depleted uranium pellets, springs, end plugs and the like.

In the prior art, in the production process of MOX components, especially in the tubing process of MOX component pellets, a production mode of manual assistance in mechanical production is mostly adopted, and as the MOX components have strong radiation, even if production personnel adopt protective measures, the production personnel are inevitably damaged by radiation, and the health of the production personnel is affected.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the automatic MOX assembly core block tubing device and the automatic MOX assembly production system comprising the same, aiming at the defects in the prior art, wherein the automatic MOX assembly core block tubing device is high in automation degree, and can automatically complete tubing of MOX assembly core blocks without manual assistance.

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides an automatic tubing device of MOX subassembly pellet, includes MOX pellet feed mechanism, lean uranium pellet feed mechanism, cladding pipe deposit mechanism, push rod mechanism, pellet transport mechanism includes first glove box and pellet transport assembly, and the pellet transport assembly sets up in first glove box for move between first station, second station and the third station in first glove box, lean uranium pellet feed mechanism includes lean uranium pellet feed assembly and second glove box, second glove box with first glove box communicates in the second station, lean uranium pellet feed assembly sets up in the second glove box for arrange long to lean uranium pellet, and with arrange on the pellet transport assembly that obtains after the length reaches the second settlement, MOX pellet feed mechanism includes MOX pellet feed assembly and third glove box, the third glove box and the first glove box are communicated with a first station, the MOX pellet feeding component is arranged in the third glove box and comprises a material box bearing table, a long-row push rod, a first grabbing component, a first long-row weighing table, a first transportation unit and a first tray push rod, the long-row push rod, the material box bearing table, the first long-row weighing table and the first transportation unit are sequentially arranged along the length direction of the third glove box, the first transportation unit comprises a first transportation material tray and a first track, the first track is arranged along the width direction of the third glove box, the first transportation material tray is slidingly arranged on the first track so as to slide between a fourth station and a fifth station, the fifth station is aligned with the first station, the material box bearing table is used for bearing the material box loaded with the MOX pellets, the long push rod is used for pushing MOX pellets in the material box onto a first long weighing platform, the first long weighing platform is used for measuring the length and the weight of the MOX pellets and conducting long-arranging on the MOX pellets so as to obtain a MOX pellet column with a first set length, the first grabbing component is used for pushing the obtained MOX pellet column into a first conveying material tray at a fourth station, the first tray push rod is used for pushing MOX pellets sliding into the first conveying material tray at a fifth station onto a pellet conveying assembly located at the first station, the push rod mechanism comprises a fourth glove box and a push rod assembly, the push rod assembly is arranged in the fourth glove box, the cladding tube storage mechanism comprises a fifth glove box, the cladding tube is arranged in the fifth glove box, the fourth glove box and the fifth glove box are correspondingly located on two sides of the first glove box and are respectively communicated with the first glove box to a third station, and the push rod assembly is used for conveying the pellet conveying assembly into the third or depleted uranium push tube.

Preferably, the setting direction of the first glove box is perpendicular to the setting directions of the second glove box, the third glove box, the fourth glove box and the fifth glove box, the second glove box, the third glove box and the fourth glove box are arranged on the same side of the first glove box, and the first station, the second station and the third station are arranged in the first glove box along the length direction of the first glove box.

Preferably, the depleted uranium pellet feeding assembly includes a depleted uranium vibration feeding member, a second row of long weighing platforms, a second grabbing member, a second tray pushing rod, and a second transport unit, the depleted uranium vibration feeding member, the second row of long weighing platforms, the second transport unit are sequentially arranged along the length direction of the second sleeve box, the second transport unit includes a second transport tray and a fourth track, the fourth track is arranged along the width direction of the second sleeve box, the second transport tray is slidably arranged on the fourth track so as to move between a sixth station and a seventh station, the seventh station is aligned with the second station, the output end of the depleted uranium vibration feeding member is communicated with the second row of long weighing platforms, the second row of long weighing platforms are used for measuring the length and the weight of the stored depleted uranium pellets and carrying out the depleted uranium pellet to obtain the depleted uranium pellets with a second set length, the second transport tray is slidably arranged on the fourth track so as to enable the depleted uranium pellet feeding member to move between the sixth station and the seventh station, and the depleted uranium pellet feeding assembly is slidably arranged in the second tray.

Preferably, the automatic tubing device of MOX subassembly pellet still includes the spring feed bin, be equipped with second track and third track in the first glove box, the second track with the third track is followed the length direction parallel arrangement of first glove box, pellet transportation subassembly with the spring feed bin slides respectively and establishes on second track and third track, the spring has been stored in the spring feed bin, when the spring feed bin moved to the third station, the push rod subassembly can also be with spring propelling movement to the cladding intraductal.

Preferably, the automatic pipe loading device of the core block of the MOX assembly further comprises a control mechanism, wherein the control mechanism comprises a controller, a first position sensor, a second position sensor, a third position sensor, a first sensor and a second sensor, the first position sensor is arranged at a first station and is electrically connected with the controller, and is used for detecting the position of the core block transporting assembly, sending a first detection signal to the controller when the movement of the core block transporting assembly to the first station is detected, the first sensor is arranged on the first transporting material disc and is electrically connected with the controller, and is used for sensing the MOX core block on the first transporting material disc, sending a first sensing signal to the controller when the MOX core block is arranged on the first transporting material disc, and the controller is also electrically connected with a first disc pushing rod and the core block transporting assembly, and is used for controlling the core block transporting assembly to move to the first station after receiving the first sensing signal, stopping the movement of the core block transporting assembly and controlling the core block transporting assembly to move to the first station when the first detection signal is received, and controlling the first disc pushing the core block transporting assembly to start up the MOX core block; the second position sensor is arranged at a second station and is electrically connected with the controller, and is used for detecting the position of the pellet conveying assembly, sending a second detection signal to the controller when the pellet conveying assembly is detected to move to the second station, the second sensor is arranged on a second conveying material tray and is electrically connected with the controller, and is used for sensing depleted uranium pellets on the second conveying material tray, sending a second sensing signal to the controller when the depleted uranium pellets are sensed to be placed on the second conveying material tray, and the controller is also electrically connected with a second tray push rod, and is used for controlling the pellet conveying assembly to move to the second station after receiving the second sensing signal, controlling the pellet conveying assembly to stop moving and controlling the second tray push rod to start when the second detection signal is received, so as to push the depleted uranium pellets to the pellet conveying assembly; the third position sensor is arranged at a third station and is electrically connected with the controller and used for detecting the position of the pellet transportation assembly and sending a third detection signal to the controller when detecting that the pellet transportation assembly moves to the third station, and the controller is also electrically connected with the push rod assembly and the spring storage bin and used for controlling the pellet transportation assembly/the spring storage bin to stop moving and controlling the push rod assembly to start after receiving the third signal so as to push the MOX pellet/the depleted uranium pellet/the spring into the cladding tube.

Preferably, the push rod assembly comprises a measuring rod, a first push rod and a second push rod, wherein the measuring rod, the first push rod and the second push rod are arranged in the fourth glove box in parallel, the first push rod is used for pushing a spring into the cladding tube, the second push rod is used for pushing a MOX pellet/depleted uranium pellet into the cladding tube, and the measuring rod is used for measuring the length of the cladding tube.

Preferably, the feeding hole is formed in the top of the third glove box, the tray carrying table comprises a material receiving platform and a lifting unit, and the material receiving platform is arranged on the lifting unit and used for ascending to the feeding hole under the driving of the lifting unit to carry a material box loaded with MOX core blocks and descending under the driving of the lifting unit to enable the material box and the long push rod to be located on the same plane.

Preferably, the first glove box, the second glove box, the third glove box, the fourth glove box and the fifth glove box are all provided with peeping windows.

The invention further provides an automatic production system of the MOX assembly, which comprises a plug welding device and a lifting device, and further comprises the automatic loading device of the MOX assembly pellet, wherein the plug welding device comprises a sixth glove box and a plug welding assembly, the plug welding assembly is arranged in the sixth glove box, the lifting device is used for lifting the loaded cladding tube in the fifth glove box into the sixth glove box, and the plug welding assembly is used for sealing an opening of the cladding tube conveyed into the sixth glove box.

Preferably, the plug welding assembly comprises a synchronous belt, an end plug feeding part, a wiping part, an inflating part, a plug pressing part and a welding part, wherein the synchronous belt is arranged along the length direction of the sixth glove box, the end plug feeding part, the wiping part, the inflating part, the plug pressing part and the welding part are respectively arranged at two sides of the synchronous belt along the length direction of the sixth glove box, the synchronous belt can sequentially transport the cladding tube to the wiping part, the inflating part, the plug pressing part and the welding part, the wiping part is used for wiping the opening of the cladding tube, the inflating part is used for replacing the gas in the cladding tube with helium, the end plug feeding part is internally stored with an end plug, the output end of the end plug feeding part is connected with the plug pressing part, the plug pressing part is used for installing the end plug at the opening of the cladding tube and pressing the end plug, and the welding part is used for welding the ring seam of the pressed end plug.

The automatic tubing device for the MOX assembly core blocks has high automation degree, can realize automatic tubing of the MOX assembly core blocks, does not need manual assistance, improves tubing efficiency of the MOX assembly, and can also avoid operators from being radiated.

Drawings

FIG. 1 is a top view of an automatic tubing apparatus for MOX assembly pellets in accordance with example 1 of the present invention;

FIG. 2 is a front view of the MOX pellet feed mechanism of example 1 of the present invention;

FIG. 3 is a top view of the MOX pellet feed mechanism of example 1 of the present invention;

fig. 4 is a schematic structural diagram of a MOX pellet feeding mechanism in embodiment 1 of the present invention;

FIG. 5 is a top view of a depleted uranium pellet feed mechanism of example 1 of the present invention;

FIG. 6 is a top view of the pellet transport mechanism in embodiment 1 of the present invention;

FIG. 7 is a top view of the push rod mechanism of embodiment 1 of the present invention;

FIG. 8 is a top view of an automatic production system for MOX assemblies in example 2 of the present invention;

fig. 9 is a plan view of the corking welding device in embodiment 2 of the present invention.

In the figure: 1-MOX pellet feed mechanism, 2-depleted uranium pellet feed mechanism, 3-push rod mechanism, 4-corkscrew welding device, 5-pellet transport mechanism, 6-third glove box, 7-first transport tray, 8-cartridge receiving station, 9-row long push rod, 10-first tray push rod, 11-first row long weighing station, 12-first gripping means, 121-first track, 13-cartridge, 14-first length measuring instrument, 15-second glove box, 16-depleted uranium vibratory feed means, 17-second tray push rod, 18-second transport tray, 181-second gripping means, 182-second row long weighing station, 183-fourth track, 19-spring enclosure, 20-pellet transport assembly, 21-first glove box, 22-push rod assembly, 23-fourth glove box, 231-fifth glove box, 24-sixth glove box, 25-wiping means, 26-feeding means, 27-welding means, 28-corkscrew means, 29-tube storage mechanism.

Detailed Description

The following description of the embodiments of the present invention will be made more apparent, and the embodiments described in detail, but not necessarily all, in connection with the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

In the description of the present invention, it should be noted that, the terms "upper" and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely for convenience and simplicity of description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "configured," "mounted," "secured," and the like are to be construed broadly and may be either fixedly connected or detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

The invention provides an automatic pipe loading device for MOX assembly pellets, which comprises an MOX pellet loading mechanism, a depleted uranium pellet loading mechanism, a cladding pipe storage mechanism, a push rod mechanism and a pellet transport mechanism, wherein the pellet transport mechanism comprises a first glove box and a pellet transport assembly, the pellet transport assembly is arranged in the first glove box and is used for moving among a first station, a second station and a third station in the first glove box, the depleted uranium pellet loading mechanism comprises a depleted uranium pellet loading assembly and a second glove box, the second glove box is communicated with the first glove box and is connected with the first station, the depleted uranium pellet loading assembly is arranged in the second glove box and is used for discharging depleted uranium pellets, and the depleted uranium pellet column which reaches a second set length and is obtained after the discharging is pushed onto the pellet transport assembly on the first station, the MOX pellet feeding mechanism comprises an MOX pellet feeding assembly and a third glove box, wherein the third glove box is communicated with the first glove box and is arranged in a second station, the MOX pellet feeding assembly is arranged in the third glove box and comprises a material box bearing table, a long-row push rod, a first grabbing component, a first long-row weighing table, a first conveying unit and a first tray push rod, the long-row push rod, the material box bearing table, the first long-row weighing table and the first conveying unit are sequentially arranged along the length direction of the third glove box, the first conveying unit comprises a first conveying material tray and a first track, the first track is arranged along the width direction of the third glove box, the first conveying material tray is arranged on the first track in a sliding manner so as to slide between a fourth station and a fifth station, the fifth station is aligned with the second station, the material box bearing table is used for bearing the material boxes of the MOX pellets, the long push rod is used for pushing MOX pellets in the material box onto a first long weighing platform, the first long weighing platform is used for measuring the length and the weight of the MOX pellets and conducting long-arranging on the MOX pellets so as to obtain a MOX pellet column with a first set length, the first grabbing component is used for pushing the obtained MOX pellet column into a first conveying material tray at a fourth station, the first tray push rod is used for pushing MOX pellets sliding into the first conveying material tray at a fifth station onto a pellet conveying assembly located at a second station, the push rod mechanism comprises a fourth glove box and a push rod assembly, the push rod assembly is arranged in the fourth glove box, the cladding tube storage mechanism comprises a fifth glove box, the cladding tube is arranged in the fifth glove box, the fourth glove box and the fifth glove box are correspondingly located on two sides of the first glove box and are respectively communicated with the first glove box to a third station, and the push rod assembly is used for conveying the pellet conveying assembly into the third or depleted uranium push tube.

The invention further provides an automatic production system of the MOX assembly, which comprises a plug welding device and a lifting device, and further comprises the automatic loading device of the MOX assembly pellet, wherein the plug welding device comprises a sixth glove box and a plug welding assembly, the plug welding assembly is arranged in the sixth glove box, the lifting device is used for lifting the loaded cladding tube in the fifth glove box into the sixth glove box, and the plug welding assembly is used for sealing an opening of the cladding tube conveyed into the sixth glove box.

Example 1

As shown in fig. 1, this embodiment discloses an automatic tubing device of MOX subassembly pellet, including MOX pellet feed mechanism 1, lean uranium pellet feed mechanism 2, cladding tube deposit mechanism 29, push rod mechanism 3, pellet transport mechanism 5 includes first glove box 21 and pellet transport assembly 20, first glove box 21 is the cuboid structure, pellet transport assembly 20 sets up in first glove box 21 for move between first station, second station and the third station in first glove box 21, first station, second station, third station set up along the length direction of first glove box 21.

The depleted uranium pellet feeding mechanism 2 comprises a depleted uranium pellet feeding assembly and a second glove box 15, the second glove box 15 is communicated with the first glove box 21 at a first station (the middle position of the first glove box 21), the second glove box 15 is of a cuboid structure, and the depleted uranium pellet feeding assembly is arranged in the second glove box 15 and is used for arranging and weighing depleted uranium pellets to obtain a depleted uranium pellet column with a second set length and pushing the depleted uranium pellet column to the pellet transport assembly 20 at the first station.

As shown in fig. 3, the MOX pellet feeding mechanism 1 includes a MOX pellet feeding assembly and a third glove box 6, the third glove box 6 and the first glove box 21 are communicated with each other at a second station (at a first end of the first glove box 21), the third glove box 6 is in a cuboid structure, the MOX pellet feeding assembly is disposed in the third glove box 6, and includes a magazine receiving table 8, a long-row pushing rod 9, a first grabbing component 12, a first long-row weighing table 11, a first transporting unit, a first tray pushing rod 10, the long-row pushing rod 9, the magazine receiving table 8, the first long-row weighing table 11, and the first transporting unit are sequentially disposed along a length direction of the third glove box 6, the first transporting unit includes a first transporting tray 7 and a first track 121, the first rail 121 is disposed along the width direction of the third glove box 6, the first transporting tray 7 and the first rail 121 are located at an end of one end of the third glove box 6, the first transporting tray 7 is slidably disposed on the first rail 121 to slide between the fourth station and the fifth station, the first row length weighing tables 11 and the first tray push rods 10 are juxtaposed along the width direction of the third glove box 6, and both are aligned near one side of the first transporting unit, specifically, the end of the first row length weighing tables 11 is aligned with the fourth station, the end of the first tray push rods 10 is aligned with the fifth station, and the other side of the fifth station (near the first glove box 21) is aligned with the first station.

The third glove box 6 is provided with a feed inlet, a box receiving table 8 is used for receiving a box 13 from the feed inlet, the box 13 is loaded with MOX pellets, the box receiving table 8 is arranged at the other end of the first row length weighing table 11, a row length push rod 9 is arranged at one side of the box receiving table 8 away from the first row length weighing table 11 and used for pushing MOX pellets in the box 13 onto the first row length weighing table 11, the first row length weighing table 11 is used for measuring the length and the weight of the MOX pellet row and discharging the MOX pellet row to obtain the MOX pellet row with a first set length (the total length of all MOX pellets which can be loaded for a single cladding tube), so that the total length of the MOX pellets which are subsequently loaded into each cladding tube is ensured to be the same and located within the set length range. A first gripping member 12 is arranged above the first row of weighing stations 11 for pushing the obtained rows of MOX pellets into the first transport tray 7 at the fourth station. Specifically, the first row length weighing platform 11 includes a first weight measuring instrument and a first length measuring instrument 14, the MOX core is disposed on the first weight measuring instrument, the first weight measuring instrument is used for measuring the weight of the MOX core column, the first length measuring instrument 14 is disposed near the first weight measuring instrument, the first length measuring instrument 14 is electrically connected with the first grabbing component, and is used for sending a signal to the first grabbing component 12 after the length of the MOX core column on the first row length weighing platform 11 reaches a first set length, and the first grabbing component 12 grabs the MOX core column into the first conveying tray 7 according to the signal.

The first grabbing component 12 comprises a first driving cylinder, a first clamping jaw cylinder and a first clamping jaw, the first clamping jaw cylinder is arranged on the first driving cylinder, the first clamping jaw is arranged on the first clamping jaw cylinder, the first driving cylinder is used for driving the first clamping jaw cylinder and the first clamping jaw to move along the length direction of the first row of long weighing platforms 11, and the first clamping jaw cylinder is used for controlling the opening and closing of the first clamping jaw so as to clamp the MOX core block array.

In this embodiment, the first tray forming push rod 10 is used for pushing the MOX pellets in the first conveying tray 7 sliding to the fifth station onto the pellet conveying assembly 20 located on the first station, the first tray forming push rod 10 includes a second driving cylinder and a third push rod, the third push rod includes a plurality of third push rods arranged in parallel, the plurality of third push rods are respectively connected with the output ends of the second driving cylinder, the MOX pellets are arranged in a row on the first row of weighing platforms 11, when the MOX pellets are transferred to the first conveying tray 7, each MOX pellet is respectively placed in each parallel trough of the first conveying tray 7, when the first conveying tray 7 moves to the fifth station, each trough of the first conveying tray 7 is respectively aligned with each third push rod, and the second driving cylinder drives the plurality of third push rods to act, so that the MOX pellets are pushed onto the pellet conveying assembly 20 at one time.

In this embodiment, the push rod mechanism 3 includes a fourth glove box 23 and a push rod assembly 22, the push rod assembly 22 is disposed in the fourth glove box 23, the cladding tube storage mechanism 29 includes a fifth glove box 231, the cladding tube is disposed in the fifth glove box 231, the fourth glove box 23 and the fifth glove box 231 are correspondingly located at two sides of the first glove box 21 and are respectively communicated with the first glove box 21 at a third station (the other end of the first glove box 21), the fourth glove box 23 and the fifth glove box 231 are both in a cuboid structure, and the push rod assembly 22 is used for conveying the pellet conveying assembly 20 into the MOX pellets or the uranium-depleted pellets of the third station to the cladding tube.

As shown in fig. 1, the first glove box 21 is disposed in a direction perpendicular to the second glove box 15, the third glove box 6, the fourth glove box 23, and the fifth glove box 231, and the second glove box 15, the third glove box 6, and the fourth glove box 23 are disposed on the same side of the first glove box 21, and the fifth glove box 231 is disposed on the other side of the first glove box 21. Such an arrangement is advantageous for improving the compactness of the automatic tubing device for MOX assembly pellets. Wherein the first station, the second station, and the third station are located in the first glove box 21 and are disposed along the length direction of the first glove box 21.

As shown in fig. 5, the depleted uranium pellet feeding assembly includes a depleted uranium vibrating feeding member 16, a second row of long weighing stations 182, a second gripping member 181, a second tray pushing rod 17, and a second transport unit, the depleted uranium vibrating feeding member 16, the second row of long weighing stations 182, and the second transport unit are sequentially disposed along the length direction of the second glove box 15, a plurality of depleted uranium pellets are stored in the depleted uranium vibrating feeding member 16, and the output end of the depleted uranium vibrating feeding member 16 is connected to the second row of long weighing stations 182, the second row of long weighing stations 182 are used to measure the length and weight of the depleted uranium pellets and to discharge them to obtain a depleted uranium pellet column having a second set length (the total length of all depleted uranium pellets that can be loaded for a single package), the second transport unit includes a second transport tray 18 and a fourth rail 183, the fourth rail 183 is disposed along the width direction of the second glove box 15, the second transport tray 18 is slidingly disposed on the fourth rail so as to move between the seventh station and the second tray 182, and the second tray is disposed near the end of the second tray 17 along the width direction of the second tray. Specifically, the end of the second row of long weighing platforms 182 is aligned with the sixth station, the end of the second tray pushing rod 17 is aligned with one side of the seventh station, one side of the seventh station close to the first glove box 21 is aligned with the second station, the second grabbing component 181 is used for grabbing the obtained depleted uranium pellet column into the second transportation tray 18 located at the sixth station, then the second transportation tray 18 slides from the sixth station to the seventh station, and the second tray pushing rod 17 is used for pushing the depleted uranium pellets sliding into the second transportation tray 18 located at the seventh station onto the pellet transportation assembly 20 located at the second station.

Specifically, the second row length weighing platform 182 includes a second weight measuring instrument and a second length measuring instrument, the second weight measuring instrument is used for measuring the weight of the depleted uranium core block row, the second length measuring instrument is arranged near the second weight measuring instrument and is electrically connected with the second grabbing component 181, after the length of the depleted uranium core block row of the second row length weighing platform 182 reaches a second set length, a signal is sent to the second grabbing component 181, and then the second grabbing component 181 grabs the depleted uranium core block row into the second transportation tray 18.

In this embodiment, the second grabbing component 181 includes a third driving cylinder, a second clamping jaw cylinder, and a second clamping jaw, where the second clamping jaw cylinder is installed on the third driving cylinder, the second clamping jaw is installed on the second clamping jaw cylinder, the third driving cylinder is used to drive the second clamping jaw cylinder and the second clamping jaw to move along the length direction of the second row of long weighing platforms 182, and the second clamping jaw cylinder is used to control the opening and closing of the second clamping jaw, so as to clamp the depleted uranium core block array.

In this embodiment, the second tray pushing rod 17 is used to push the depleted uranium pellets in the second transport tray 18 sliding to the seventh station onto the pellet transport assembly 20 located on the second station, the second tray pushing rod 17 includes a fourth driving cylinder and a fourth pushing rod, the fourth pushing rod includes a plurality of parallel driving cylinders, the plurality of fourth pushing rods are respectively connected to the output ends of the fourth driving cylinder, the depleted uranium pellets are arranged in a row on the second row of weighing platforms 182, when the depleted uranium pellets are transferred to the second transport tray 18, each depleted uranium pellet is respectively placed in each parallel trough of the second transport tray, and when the second transport tray 18 moves to the seventh station, each trough of the second transport tray 18 is respectively aligned with each fourth pushing rod, and the fourth driving cylinder drives the plurality of fourth pushing rods to act, so as to push the depleted uranium pellets onto the pellet transport assembly 20 at a time.

As shown in fig. 6, the automatic pipe loading device for the MOX assembly pellets further comprises a spring storage bin 19, a second rail and a third rail are arranged in the first glove box 21, the second rail and the third rail are arranged in parallel along the length direction of the first glove box 21, the pellet conveying assembly 20 and the spring storage bin 19 are respectively arranged on the second rail and the third rail in a sliding mode, springs are stored in the spring storage bin 19, and when the spring storage bin 19 moves to a third station, the push rod assembly 22 pushes the springs into the cladding pipe.

In this embodiment, the automatic pipe loading device for the MOX assembly core block further includes a control mechanism, where the control mechanism includes a controller, a first position sensor, a second position sensor, a third position sensor, a first sensor, and a second sensor, where the first position sensor is disposed at a first station and electrically connected to the controller, and is configured to detect a position of the core block transporting assembly 20, and when detecting that the core block transporting assembly 20 moves to the first station, send a first detection signal to the controller, and where the first sensor is disposed on the first transporting tray 7 and electrically connected to the controller, and is configured to sense the MOX core block on the first transporting tray 7, and when sensing that the MOX core block is disposed on the first transporting tray 7, send a first sensing signal to the controller, and where the controller is further electrically connected to the first tray pushing rod 10 and the core block transporting assembly 20, and is configured to control the movement of the core block transporting assembly 20 to the first station after receiving the first sensing signal, and to stop the movement of the core block transporting assembly 20 when receiving the first detection signal, and to control the movement of the core block transporting assembly 20 to start the first tray pushing the core block 10.

The second position sensor is arranged at the second station and is electrically connected with the controller, and is used for detecting the position of the pellet transport assembly 20, sending a second detection signal to the controller when the movement of the pellet transport assembly 20 to the second station is detected, the second sensor is arranged on the second transport tray 18 and is electrically connected with the controller, and is used for sensing depleted uranium pellets on the second transport tray 18, sending a second sensing signal to the controller when the depleted uranium pellets are sensed to be placed on the second transport tray 18, and the controller is also electrically connected with the second tray push rod 17, and is used for controlling the movement of the pellet transport assembly 20 to the second station after the second sensing signal is received, and controlling the movement of the pellet transport assembly 20 and the start of the second tray push rod 17 when the second detection signal is received, so as to push the depleted uranium pellets to the pellet transport assembly 20.

The third position sensor is disposed at the third station and electrically connected to the controller for detecting the position of the pellet transport assembly 20 and sending a third detection signal to the controller when detecting the movement of the pellet transport assembly 20 to the third station, and the controller is further electrically connected to the push rod assembly 22 and the spring storage 19 for controlling the movement of the pellet transport assembly 20/the spring storage 19 to stop and the push rod assembly 22 to start after receiving the third signal, so that the pellet transport assembly 20 stops at the third station and the MOX pellet/depleted uranium pellet/spring is pushed into the cladding tube.

As shown in fig. 7, the push rod assembly 22 comprises a measuring rod, a first push rod, a second push rod, and a third push rod arranged in parallel in a fourth glove box 23, wherein the measuring rod is used for measuring the length of the cladding tube so as to ensure that the cladding tube can be loaded into the depleted uranium pellets, the MOX pellets and the springs. The first push rod is used to push the spring into the cladding tube and the second push rod is used to push the MOX/depleted uranium pellets into the cladding tube. The measuring rod, the first push rod and the second push rod are different in size, the first push rod is matched with the spring in size, and the second push rod is matched with the depleted uranium core block and the MOX core block in size.

Specifically, the push rod assembly 22 further includes a fifth driving cylinder, a sixth driving cylinder, and a seventh driving cylinder, where the fifth driving cylinder, the sixth driving cylinder, and the seventh driving cylinder are disposed in parallel in the fourth glove box 23, and the measuring rod, the first push rod, and the second push rod are respectively installed at output ends of the fifth driving cylinder, the sixth driving cylinder, and the seventh driving cylinder, and the fifth driving cylinder, the sixth driving cylinder, and the seventh driving cylinder are respectively used for driving the measuring rod, the first push rod, and the second push rod to move. A fifth track is further arranged in the fourth glove box 23, the fifth track is arranged along the width direction of the fourth glove box 23, and a fifth driving cylinder, a sixth driving cylinder and a seventh driving cylinder are slidably arranged on the fifth track and can jointly move along the fifth track. In the tubing process, first, the fifth, sixth and seventh drive cylinders move along the fifth track to align the fifth and measurement rods with the cladding tube, the fifth drive cylinder drives the measurement rods to move, the measurement rods extend into the cladding tube for measuring whether the depth of the cladding tube meets the requirements, when the depth of the cladding tube is within the range meeting the conditions, the fifth, sixth and seventh drive cylinders continue to move along the fifth track to align the seventh and second push rods with the cladding tube, the pellet transport assembly 20 moves to the third station, the seventh drive cylinder drives the second push rods to push the MOX and uranium-depleted pellets into the cladding tube, respectively, wherein the tubing of the MOX and uranium-depleted pellets is sequentially the uranium-depleted pellets, the MOX pellets (from inside to outside), then the pellet transport assembly 20 leaves the third station, the spring magazine 19 moves to the third station, the fifth, the sixth drive cylinder, the seventh drive cylinder moves along the fifth track to align the fifth and the sixth push rods with the cladding tube, and the sixth drive cylinders continue to move the first push rods into alignment with the cladding tube.

As shown in fig. 1, 3 and 4, a feeding port is formed in the top of the third glove box 6, and the tray receiving platform includes a receiving platform and a lifting unit, where the receiving platform is disposed on the lifting unit and is configured to rise to the feeding port under the driving of the lifting unit to receive the magazine 13 loaded with the MOX pellets, and descend under the driving of the lifting unit so that the magazine 13 and the long push rod 9 are located on the same plane.

In this embodiment, when the magazine 13 enters the third glove box 6 from the feed inlet, the lifting unit drives the receiving platform to rise to receive the magazine 13 loaded with the MOX pellets, then drives the receiving platform to descend so as to return to the previous plane (in the same plane as the long push rod 9 and the first long weighing platform), and then the long push rod 9 pushes the MOX pellets located in the magazine 13 onto the first long weighing platform 11.

As shown in fig. 2, in this embodiment, peeping windows are formed on the first glove box 21, the second glove box 15, the third glove box 6, the fourth glove box and the fifth glove box 231, for observing the internal conditions of the glove boxes, and each glove box adopts a thick-wall glove box for protecting operators to shield the radiation of the MOX assembly.

The automatic tubing device of MOX assembly core blocks in the embodiment has high automation degree, can automatically complete tubing of the MOX assembly core blocks, does not need manual assistance, improves tubing efficiency of the MOX assembly, and also avoids operators from being radiated.

Example 2

As shown in fig. 8, this embodiment discloses an automatic production system for a MOX assembly, which comprises a plug welding device 4 and a lifting device, and further comprises an automatic loading device for a core block of the MOX assembly in embodiment 1, wherein the plug welding device 4 comprises a sixth glove box 24 and a plug welding assembly, the shape and structure of the sixth glove box 24 are the same as those of the first glove box 21, the second glove box 15, the third glove box 6, the fourth glove box and the fifth glove box 231, and peeping windows are also formed. The plug welding assembly is disposed in the sixth glove box 24, and the lifting device is used for lifting the loaded cladding tube in the fifth glove box 231 into the sixth glove box 24, and the plug welding assembly is used for sealing the opening of the cladding tube conveyed into the sixth glove box 24.

As shown in fig. 9, in the present embodiment, the plug welding assembly comprises an end plug loading part 26, a wiping part 25, an inflating part, a plug pressing part 28 and a welding part 27, and since the lower end plug of the cladding tube is already installed during the loading of the pellets, only the upper end plug of the cladding tube has to be installed after the loading of the pellets and after a part of the process has been performed. Before the upper end plug is installed, the following procedures are needed to be carried out on the cladding tube: wiping, inflating, pressing and welding. The sixth glove box 24 is internally provided with a synchronous belt, the synchronous belt is arranged along the length direction of the sixth glove box 24, the end plug feeding part 26, the wiping part 25, the inflating part, the corking part 28 and the welding part 27 are arranged on two sides of the synchronous belt along the length direction of the glove box, the cladding tube is clamped by the lifting device, the synchronous belt enters the synchronous belt of the sixth glove box 24 from the fifth glove box 231, firstly, the synchronous belt drives the cladding tube to move to the wiping part 25 so as to align the upper end opening of the cladding tube with the wiping part 25, the wiping part 25 wipes the cladding tube, after wiping, the synchronous belt drives the cladding tube to move to the inflating part so as to align the upper end opening of the cladding tube with the inflating part, the inflating part vacuumizes the inside of the cladding tube and replaces the gas in the cladding tube with helium, then, the synchronous belt drives the cladding tube to move to the corking part 28 so as to align the upper end opening of the pipe with the corking part 28, the corking part 28 is communicated with the output end of the end plug feeding part 26, the upper end plug feeding part is used for receiving the upper end plug feeding part 26, after the upper end plug 28 is aligned with the upper end plug feeding part, the upper end plug 28 is arranged at the upper end plug feeding part, the upper end plug is welded, the whole end plug is welded with the upper end plug 27, and finally, the welding part is welded, the whole assembly is welded, and the end plug is welded, the whole assembly is pressed, and the end plug 27 is pressed.

The MOX assembly automatic production system in the embodiment can fully automatically complete the processes of tubing, plug pressing, welding and the like of the MOX assembly, achieves full-automatic production of the MOX assembly, greatly improves production efficiency, does not need manual auxiliary operation, and avoids the health damage of radioactive rays to operators.

It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.

Claims (10)

1. An automatic tube loading device for MOX assembly pellets is characterized by comprising an MOX pellet feeding mechanism (1), a depleted uranium pellet feeding mechanism (2), a cladding tube storage mechanism (29), a push rod mechanism (3) and a pellet conveying mechanism (5),

the core block conveying mechanism (5) comprises a first glove box (21) and a core block conveying assembly (20), the core block conveying assembly (20) is arranged in the first glove box (21) and is used for moving among a first station, a second station and a third station in the first glove box (21),

The depleted uranium pellet feeding mechanism (2) comprises a depleted uranium pellet feeding assembly and a second glove box (15), the second glove box (15) is communicated with the first glove box (21) and is arranged in the second glove box (15) for arranging depleted uranium pellets in a long way and pushing the depleted uranium pellets which reach a second set length after being arranged to a pellet transport assembly (20) arranged on the second station,

the MOX pellet feeding mechanism (1) comprises an MOX pellet feeding assembly and a third glove box (6), the third glove box (6) is communicated with the first glove box (21) and is arranged in a first station, the MOX pellet feeding assembly is arranged in the third glove box (6) and comprises a material box bearing table (8), a long-arranging push rod (9), a first grabbing component (12), a first long-arranging weighing table (11), a first conveying unit and a first tray push rod (10),

the row length push rod (9), the material box bearing table (8), the first row length weighing table (11) and the first transportation unit are sequentially arranged along the length direction of the third glove box (6),

the first transport unit comprises a first transport tray (7) and a first rail (121), the first rail (121) is arranged along the width direction of the third glove box (6), the first transport tray (7) is arranged on the first rail (121) in a sliding way so as to slide between a fourth station and a fifth station, the fifth station is aligned with the first station,

The material box bearing table (8) is used for bearing a material box (13) loaded with MOX core blocks, the row length push rod (9) is used for pushing the MOX core blocks in the material box (13) onto the first row length weighing table (11),

the first row length weighing station (11) is used for measuring the length and the weight of MOX core blocks and arranging the length to obtain MOX core block rows with a first set length,

the first grabbing component (12) is used for pushing the obtained MOX pellet array into a first conveying tray (7) at a fourth station,

the first tray pushing rod (10) is used for pushing MOX (metal oxide semiconductor) core blocks in the first conveying tray (7) sliding to the fifth station to a core block conveying assembly (20) positioned on the first station,

the push rod mechanism (3) comprises a fourth glove box (23) and a push rod assembly (22), the push rod assembly (22) is arranged in the fourth glove box (23), the cladding tube storage mechanism (29) comprises a fifth glove box (231), the cladding tube is arranged in the fifth glove box (231), the fourth glove box (23) and the fifth glove box (231) are correspondingly positioned on two sides of the first glove box (21) and are respectively communicated with the first glove box (21) to be in a third station, and the push rod assembly (22) is used for conveying MOX pellets or depleted uranium pellets which are conveyed to the third station by the pellet conveying assembly (20) to be pushed into the cladding tube.

2. The automatic pipe loading device for MOX assembly pellets according to claim 1, wherein the first glove box (21) is arranged in a direction perpendicular to the second glove box (15), the third glove box (6), the fourth glove box (23) and the fifth glove box (231), and the second glove box (15), the third glove box (6) and the fourth glove box (23) are arranged on the same side of the first glove box (21),

the first station, the second station and the third station are arranged in the first glove box (21) along the length direction of the first glove box.

3. The automatic tubing device for MOX assembly pellets according to claim 1, wherein the depleted uranium pellet feeding assembly comprises a depleted uranium vibratory feeding member (16), a second row of long weighing stations (182), a second grabbing member (181), a second tray pushing rod (17), a second transport unit,

the depleted uranium vibration feeding component (16), the second row of long weighing platforms (182) and the second transportation unit are sequentially arranged along the length direction of the second glove box (15),

the second transporting unit includes a second transporting tray (18) and a fourth rail (183), the fourth rail (183) being disposed along a width direction of the second glove box (15), the second transporting tray (18) being slidably disposed on the fourth rail (183) to move between a sixth station and a seventh station, the seventh station being aligned with the second station,

The output end of the depleted uranium vibration feeding member (16) is communicated with the second row of long weighing platforms (182) and is used for outputting stored depleted uranium pellets to the second row of long weighing platforms (182),

the second row of long weighing stations (182) is used to measure the length and weight of depleted uranium pellets and to row them to obtain a column of depleted uranium pellets having a second set length,

the second grabbing component (181) is used for grabbing the depleted uranium core block row after the row length into a second conveying tray (18) at a sixth station,

the second tray pushing rod (17) is used for pushing the depleted uranium pellets in the second conveying tray (18) sliding to the seventh station onto the pellet conveying assembly (20) at the second station.

4. The automatic tubing device for MOX assembly pellets as claimed in claim 3, further comprising a spring magazine (19),

a second track and a third track are arranged in the first glove box (21), the second track and the third track are arranged in parallel along the length direction of the first glove box (21), the core block conveying assembly (20) and the spring storage bin (19) are respectively arranged on the second track and the third track in a sliding way,

the spring magazine (19) stores springs therein, and the push rod assembly (22) is also capable of pushing springs into the cladding tube when the spring magazine (19) is moved to the third station.

5. The automatic tubing apparatus for MOX assembly pellets as claimed in claim 4, further comprising a control mechanism comprising a controller, a first position sensor, a second position sensor, a third position sensor, a first sensor, a second sensor,

the first position sensor is arranged at the first station and is electrically connected with the controller, and is used for detecting the position of the core block transporting assembly (20) and sending a first detection signal to the controller when detecting that the core block transporting assembly (20) moves to the first station,

the first sensor is arranged on the first transportation tray (7) and is electrically connected with the controller, and is used for sensing MOX (metal oxide semiconductor) core blocks on the first transportation tray (7) and sending a first sensing signal to the controller when the MOX core blocks are sensed to be placed on the first transportation tray (7),

the controller is also electrically connected with the first tray forming push rod (10) and the core block conveying assembly (20) and is used for controlling the core block conveying assembly (20) to move to the first station after receiving the first sensing signal, controlling the core block conveying assembly (20) to stop moving when receiving the first detection signal and controlling the first tray forming push rod (10) to start so as to push MOX core blocks onto the core block conveying assembly (20);

The second position sensor is arranged at the second station and is electrically connected with the controller for detecting the position of the core block transporting assembly (20) and sending a second detection signal to the controller when detecting that the core block transporting assembly (20) moves to the second station,

the second sensor is arranged on the second transportation tray (18) and is electrically connected with the controller, and is used for sensing the depleted uranium core blocks on the second transportation tray (18) and sending a second sensing signal to the controller when the depleted uranium core blocks are sensed to be placed on the second transportation tray (18),

the controller is also electrically connected with the second tray pushing rod (17) and is used for controlling the pellet transporting component (20) to move to the second station after receiving the second sensing signal, controlling the pellet transporting component (20) to stop moving and controlling the second tray pushing rod (17) to start when receiving the second detection signal so as to push the uranium-depleted pellet onto the pellet transporting component (20);

the third position sensor is arranged at a third station and is electrically connected with the controller and used for detecting the position of the core block conveying assembly (20) and sending a third detection signal to the controller when detecting that the core block conveying assembly (20) moves to the third station,

The controller is also electrically connected with a push rod assembly (22) and a spring silo (19) for controlling the pellet transport assembly (20)/the spring silo (19) to stop moving and controlling the push rod assembly (22) to start after receiving a third signal to push the MOX pellet/depleted uranium pellet/spring into the cladding tube.

6. The automatic tubing device for MOX assembly pellets according to claim 5, wherein the push rod assembly (22) comprises a measuring rod, a first push rod, a second push rod, the measuring rod, the first push rod, the second push rod being disposed in parallel within the fourth glove box (23),

wherein the first push rod is used for pushing the spring into the cladding tube, the second push rod is used for pushing the MOX pellet/depleted uranium pellet into the cladding tube, and the measuring rod is used for measuring the length of the cladding tube.

7. The automatic tubing device for MOX assembly pellets according to claim 1, wherein a feed inlet is formed at the top of the third glove box (6),

the tray supporting table comprises a receiving platform and a lifting unit,

the receiving platform is arranged on the lifting unit and is used for lifting to the feeding port under the driving of the lifting unit so as to receive the material box (13) loaded with the MOX core blocks, and descending under the driving of the lifting unit so that the material box (13) and the long push rod (9) are positioned on the same plane.

8. The automatic pipe loading device for the MOX assembly core block according to claim 1, wherein peeping windows are formed on the first glove box (21), the second glove box (15), the third glove box (6), the fourth glove box and the fifth glove box (231).

9. An automatic production system for MOX assemblies, which comprises a corking welding device (4), a lifting device and an automatic loading device for MOX assembly core blocks according to any one of claims 1-8,

the plug welding device (4) comprises a sixth glove box (24) and a plug welding assembly, wherein the plug welding assembly is arranged in the sixth glove box (24),

the lifting device is used for lifting the loaded cladding tube positioned in the fifth glove box (231) into the sixth glove box (24),

the corking weld assembly is used to close the opening of a cladding tube that is transported into a sixth glove box (24).

10. The automatic production system of a MOX assembly according to claim 9, wherein the corking welding assembly comprises a timing belt, an end plug feeding part (26), a wiping part (25), an inflating part, a corking part (28) and a welding part (27),

the synchronous belt is arranged along the length direction of the sixth glove box (24), the end plug feeding component (26), the wiping component (25), the inflating component, the plugging component (28) and the welding component (27) are respectively arranged at two sides of the synchronous belt along the length direction of the sixth glove box (24), the synchronous belt can sequentially transport the cladding tube to the wiping component (25), the inflating component, the plugging component (28) and the welding component (27),

The wiping part (25) is used for wiping the opening of the cladding tube,

the gas filling means are used to replace the gas inside the cladding tube with helium,

the end plug loading unit (26) stores therein an end plug, the output end of which is connected to the plug pressing unit (28) for feeding the end plug to the plug pressing unit (28),

the plug members (28) are used for mounting the end plugs at the openings of the cladding tubes and compressing the end plugs,

the welding component (27) is used for welding the end plug circumferential seam after compaction.