CN106695097A - End plate welding equipment for nuclear fuel rod bundle - Google Patents
End plate welding equipment for nuclear fuel rod bundle Download PDFInfo
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- CN106695097A CN106695097A CN201611234812.8A CN201611234812A CN106695097A CN 106695097 A CN106695097 A CN 106695097A CN 201611234812 A CN201611234812 A CN 201611234812A CN 106695097 A CN106695097 A CN 106695097A
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- welding
- end plate
- earth polar
- positioning
- fixture
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3009—Pressure electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses end plate welding equipment for a nuclear fuel rod bundle. The end plate welding equipment mainly comprises an element welding device, a ring gauge positioning device, an index plate assembly, an element positioning clamp and a welding machine integral frame. The welding task for thirty seven elements and two end plates can be semi-automatically completed. The element welding device is designed by adopting the resistance spot welding principle, contact between an earth pole and the welded elements is achieved through air cylinder drive, a center electrode makes contact with the end plates, and two welded workpieces are welded together after a power source is turned on. The ring gauge positioning device can achieve fixing of the upper end of the element positioning clamp and can move along with the clamp. A rotating platform device achieves positioning of the element positioning clamp and can automatically rotate, and therefore welding of each element in each ring is achieved. In order to ensure positioning of the thirty seven elements, the element positioning clamp with high precision is designed. At present, the end plate welding equipment is applied to a rod bundle assembling production line, more than twenty thousand rod bundles are produced, the yield can reach 99.9%, all functions of the equipment are stable and reliable, and production and using requirements are met.
Description
Technical field
The present invention relates to a kind of semi-automatic end plate welding equipment of nuclear fuel cluster, PHWR nuclear fuel rod is mainly used in
Beam manufacturing technology field, can realize that 37 nuclear fuel elements and 2 pieces of end plates are welded into finished product cluster under end plate welding machine.
Background technology
End plate welding machine is the key equipment on CANDU-6 type fuel element production lines, and center north nuclear fuel element is limited
Company only has 1 and is 2001 from the import of Canadian Cameco companies, and the equipment continuous running at full capacity is for many years.It is full
Foot production from now on needs, it is to avoid the production risk that single device is caused, and is badly in need of increasing by 1 you plate welding machine.Due to import equipment
The costly, arrival time is long and supply of material state labile, while technical staff has grasped every technique of equipment, therefore it is public
Department determines the domestic end plate welding machine of independent development.Wish to make by the production domesticization of welding equipment end plate welding machine spare part realize it is domestic
Change supply, break away from the situation of long-term dependence on import.
The content of the invention
In order to realize that 37 elements and 2 pieces of end plates are welded into finished product cluster, while ensureing the torsional strenght of cluster after welding
And appearance and size meets production requirement, present invention employs following technical proposal：
A kind of end plate welding equipment of nuclear fuel cluster, according to the difference of function, end plate soldering equipment is divided into element welding dress
Put, ring gauge positioner, rotatable platform device, element positioning fixture and welding machine general frame 5 it is most of；Element welder,
Ring gauge positioner, rotatable platform device are fixed on the upper, middle and lower portion of welding machine fuselage by screw, and element positioning fixture passes through
Locating piece is fixed on rotatable platform device；
(1) element welder realizes the welding of end plate and the monitoring of welding quality and protection using piezoresistive weldering；
(2) ring gauge positioner realizes that the upper end of element positioning fixture is fixed, and each element in welding process is ensured indirectly
With the axiality of electrode；
(3) rotatable platform device is realized the positioning of element positioning fixture bottom, the rotation of element positioning fixture order, is indulged
To and transverse direction movement with positioning, manual circumferencial direction indexing with positioning；
(4) element positioning fixture realizes 37 different elements of group and being accurately positioned for two end plates；
(5) welding machine general frame combined by upright supports plate weld, welding machine fuselage, element positioning fixture turning device, weldering
Connect transformer, man-machine interaction display screen composition.
Further, a kind of end plate welding equipment of nuclear fuel cluster as described above, element welder includes lifting
Cylinder, connecting bolt, spring, welder support, earth polar indexing member, indexing positioning disk, earth polar cylinder, central electrode,
Pole, limit switch, welding monitoring sensor；
Lift cylinder is arranged on welder support, is connected with central electrode by connecting bolt part, there is provided in
Heart electrode applies the lifting of active force, soldering tip part to end plate；
Spring is arranged on connecting bolt bar, it is to avoid rigid shock, a cushioning effect when lift cylinder is moved；
Earth polar cylinder is arranged on the downside of support, there is provided earth polar applies active force to element；
Earth polar indexing member is arranged on the upside of earth polar cylinder with indexing positioning disk, realizes the adjustment of earth polar leg location；
Central electrode is respectively positioned on the downside of earth polar cylinder with earth polar, and the two is co-axially mounted so that electrocardio in when end plate is welded
Extreme pressure is pressed onto on element to end plate, earth polar；
Limit switch is arranged on the cylinder of earth polar, it is to avoid earth polar supporting leg is pressed onto the short circuit caused during end plate；
Welding monitoring sensor is arranged on the side of welder support, and the Upsetting of every element welding of real-time monitoring is slightly worth.
Further, a kind of end plate welding equipment of nuclear fuel cluster as described above, ring gauge positioner includes：Ring
Rule, latch one, locating piece one and positioning ring device support；
Ring gauge is fixed on the top of ring gauge positioner by screw, and its downside is provided with laterally and longitudinally guide rail, and matches somebody with somebody
There is alignment pin and locating piece laterally and longitudinally；
Ring gauge inner ring sleeve coordinates rotatable platform device to move together in the upper end of element positioning fixture on horizontal, vertical guide rail
It is dynamic, and realized the position adjustment of both direction and be accurately positioned by latch one, locating piece one and positioning ring device support.
Further, a kind of end plate welding equipment of nuclear fuel cluster as described above, rotatable platform device includes：The dress
Put including：Rotary indexing table, sensor, manual indexing means, locating piece two and latch two；
Rotary indexing table installs the top with the device, realizes the automatic rotation of circumferencial direction；
The upper surface of circular dividing table is equipped with locating piece and locking spring, for the fixation of element positioning fixture；
Sensor is installed on the vertical front of the device, judges the position of rotary indexing table longitudinal direction, it is to avoid maloperation；
Manual indexing means is arranged on below circular dividing table, the position adjustment of manually implemented circumferencial direction；
Laterally and longitudinally guide rail is installed on the downside of rotary indexing table, and respectively matches somebody with somebody a set of locating piece two and latch two, realize
Circular dividing table is accurately positioned.
Further, a kind of end plate welding equipment of nuclear fuel cluster as described above, element positioning fixture is by fixture shell
Body, grid spacer, end plate clamper, guide ring and backing plate composition；
Grid spacer, guide ring are fixed on fixture housing by screw, are manually inserted in fixture according to the other position of each group,
Realize the positioning of elements；
End plate clamper is fixed on the two ends of fixture housing by screw, for the positioning of end plate；
Backing plate is buckled in the clamper after welding first end, and cluster is supported when being welded for the second end, it is to avoid because welding is pressed
Power is excessive to cause the damage of clamper.
Further, a kind of end plate welding equipment of nuclear fuel cluster as described above, in welding machine general frame, by frame
Element positioning fixture turning device on the left of frame is used for the fixation of element positioning fixture, by 37 elements manually are inserted into fixture
In, right side turning device realizes that fixture overturns；
Welding transformer is fixed and welding machine fuselage, there is provided element welder power supply；
Man-machine interaction display screen install with welding machine fuselage right side, there is provided to operating personnel weld it is upset, welding point information,
Welding heat is set.
Further, a kind of end plate welding equipment of nuclear fuel cluster as described above, element welder includes lifting
Cylinder, connecting bolt, spring, welder support, earth polar indexing member, indexing positioning disk, earth polar cylinder, central electrode,
Pole, limit switch, welding monitoring sensor；
Lift cylinder is arranged on welder support, is connected with central electrode by connecting bolt part, there is provided in
Heart electrode applies the lifting of active force, soldering tip part to end plate；
Spring is arranged on connecting bolt bar, it is to avoid rigid shock, a cushioning effect when lift cylinder is moved；
Earth polar cylinder is arranged on the downside of support, there is provided earth polar applies active force to element；
Earth polar indexing member is arranged on the upside of earth polar cylinder with indexing positioning disk, realizes the adjustment of earth polar leg location；
Central electrode is respectively positioned on the downside of earth polar cylinder with earth polar, and the two is co-axially mounted so that electrocardio in when end plate is welded
Extreme pressure is pressed onto on element to end plate, earth polar；
Limit switch is arranged on the cylinder of earth polar, it is to avoid earth polar supporting leg is pressed onto the short circuit caused during end plate；
Welding monitoring sensor is arranged on the side of welder support, and the Upsetting of every element welding of real-time monitoring is slightly worth；
Ring gauge positioner includes：Ring gauge, latch one, locating piece one and positioning ring device support；
Ring gauge is fixed on the top of ring gauge positioner by screw, and its downside is provided with laterally and longitudinally guide rail, and matches somebody with somebody
There is alignment pin and locating piece laterally and longitudinally；
Ring gauge inner ring sleeve coordinates rotatable platform device to move together in the upper end of element positioning fixture on horizontal, vertical guide rail
It is dynamic, and realized the position adjustment of both direction and be accurately positioned by latch one, locating piece one and positioning ring device support；
Rotatable platform device includes：The device includes：Rotary indexing table, sensor, manual indexing means, the and of locating piece two
Latch two；
Rotary indexing table installs the top with the device, realizes the automatic rotation of circumferencial direction；
The upper surface of circular dividing table is equipped with locating piece and locking spring, for the fixation of element positioning fixture；
Sensor is installed on the vertical front of the device, judges the position of rotary indexing table longitudinal direction, it is to avoid maloperation；
Manual indexing means is arranged on below circular dividing table, the position adjustment of manually implemented circumferencial direction；
Laterally and longitudinally guide rail is installed on the downside of rotary indexing table, and respectively matches somebody with somebody a set of locating piece two and latch two, realize
Circular dividing table is accurately positioned；
Element positioning fixture is made up of fixture housing, grid spacer, end plate clamper, guide ring and backing plate；
Grid spacer, guide ring are fixed on fixture housing by screw, are manually inserted in fixture according to the other position of each group,
Realize the positioning of elements；
End plate clamper is fixed on the two ends of fixture housing by screw, for the positioning of end plate；
Backing plate is buckled in the clamper after welding first end, and cluster is supported when being welded for the second end, it is to avoid because welding is pressed
Power is excessive to cause the damage of clamper；
In welding machine general frame, consolidating for element positioning fixture is used for by the element positioning fixture turning device in frame left
Fixed, by manually 37 elements are inserted into fixture, right side turning device realizes that fixture overturns；
Welding transformer is fixed and welding machine fuselage, there is provided element welder power supply；
Man-machine interaction display screen install with welding machine fuselage right side, there is provided to operating personnel weld it is upset, welding point information,
Welding heat is set.
After the completion of equipment installation, debugging, substantial amounts of soldering test is carried out, to solder bar beam sampling Detection, as a result shown
Finished product cluster all technical is qualified.At present, center north nuclear fuel element factory CANDU-6 nuclear fuel elements have been applied to
Production line, only, qualification rate is up to 99.9% for production cluster about more than 20,000.
Brief description of the drawings
Fig. 1 is the schematic three dimensional views of CANDU-6 nuclear fuel finished product clusters
Fig. 2 is the side view of CANDU-6 nuclear fuels cluster end plate welding equipment of the present invention；
Fig. 3 is the front view of CANDU-6 nuclear fuels cluster end plate welding equipment of the present invention；
Fig. 4 is the side view of element welder；
Fig. 5 is the front view of element welder；
Fig. 6 is end plate Fundamentals of Welding figure；
Fig. 7 is the side view of ring gauge positioner；
Fig. 8 is the front view of ring gauge positioner；
Fig. 9 is the top view of ring gauge positioner；
Figure 10 is the side view of rotatable platform device；
Figure 11 is the front view of rotatable platform device；
Figure 12 is the front view of element positioning fixture；
Figure 13 is the M-M cross-sectional views of element positioning fixture；
Figure 14 is welding machine general frame.
In figure:01：Nuclear fuel element, 02：End plate, 03：Support pads (belong to element), and 04：Spacing block (belongs to element), and 1:
Element welder, 2：Ring gauge positioner, 3：Rotatable platform device, 4：Element positioning fixture, 5：Welding machine general frame, 101：
Lift cylinder, 102：Welder support, 103：Earth polar cylinder, 104：Central electrode, 105：Earth polar, 106：Earth polar indexing group
Part, 107：Limit switch, 108：Welding monitoring sensor, 109：Connecting bolt, 110：Spring, 111：Indexing positioning disk, 04：
Central electrode, 05：Earth polar, 201：Ring gauge, 202：Latch, 203：Locating piece, 204：Positioning ring device support, 301：Rotation point
Degree platform 302：Sensor 303：Manual indexing means, 304：Locating piece, 305：Latch, 401：Fixture backing plate, 402：Guide ring,
403：Fixture housing 404：Grid spacer, 405：End plate clamper, 501：Upright supports plate weld is combined, and 502：Welding machine fuselage,
503：Welding transformer, 504：Human-computer interaction device, 505：Regulator cubicle, 506：Fixture turning device.
Specific embodiment
The present invention is further described with specific implementation below in conjunction with the accompanying drawings.
A kind of end plate welding equipment of nuclear fuel cluster of the present invention, according to the difference of function, end plate soldering equipment is divided into element
Welder, ring gauge positioner, rotatable platform device, element positioning fixture and welding machine general frame 5 are most of；Element is welded
Device, ring gauge positioner, rotatable platform device are fixed on the upper, middle and lower portion of welding machine fuselage, element positioning fixture by screw
It is fixed on rotatable platform device by locating piece；
(1) element welder realizes the welding of end plate and the monitoring of welding quality and protection using piezoresistive weldering；Unit
Part welder include lift cylinder, connecting bolt, spring, welder support, earth polar indexing member, indexing positioning disk,
Pole cylinder, central electrode, earth polar, limit switch, welding monitoring sensor；
Lift cylinder is arranged on welder support, is connected with central electrode by connecting bolt part, there is provided in
Heart electrode applies the lifting of active force, soldering tip part to end plate；
Spring is arranged on connecting bolt bar, it is to avoid rigid shock, a cushioning effect when lift cylinder is moved；
Earth polar cylinder is arranged on the downside of support, there is provided earth polar applies active force to element；
Earth polar indexing member is arranged on the upside of earth polar cylinder with indexing positioning disk, realizes the adjustment of earth polar leg location；
Central electrode is respectively positioned on the downside of earth polar cylinder with earth polar, and the two is co-axially mounted so that electrocardio in when end plate is welded
Extreme pressure is pressed onto on element to end plate, earth polar；
Limit switch is arranged on the cylinder of earth polar, it is to avoid earth polar supporting leg is pressed onto the short circuit caused during end plate；
Welding monitoring sensor is arranged on the side of welder support, and the Upsetting of every element welding of real-time monitoring is slightly worth.
(2) ring gauge positioner realizes that the upper end of element positioning fixture is fixed, and each element in welding process is ensured indirectly
With the axiality of electrode；
Ring gauge positioner includes：Ring gauge, latch one, locating piece one and positioning ring device support；
Ring gauge is fixed on the top of ring gauge positioner by screw, and its downside is provided with laterally and longitudinally guide rail, and matches somebody with somebody
There is alignment pin and locating piece laterally and longitudinally；
Ring gauge inner ring sleeve coordinates rotatable platform device to move together in the upper end of element positioning fixture on horizontal, vertical guide rail
It is dynamic, and realized the position adjustment of both direction and be accurately positioned by latch one, locating piece one and positioning ring device support.
(3) rotatable platform device is realized the positioning of element positioning fixture bottom, the rotation of element positioning fixture order, is indulged
To and transverse direction movement with positioning, manual circumferencial direction indexing with positioning；
Rotatable platform device includes：The device includes：Rotary indexing table, sensor, manual indexing means, the and of locating piece two
Latch two；
Rotary indexing table installs the top with the device, realizes the automatic rotation of circumferencial direction；
The upper surface of circular dividing table is equipped with locating piece and locking spring, for the fixation of element positioning fixture；
Sensor is installed on the vertical front of the device, judges the position of rotary indexing table longitudinal direction, it is to avoid maloperation；
Manual indexing means is arranged on below circular dividing table, the position adjustment of manually implemented circumferencial direction；
Laterally and longitudinally guide rail is installed on the downside of rotary indexing table, and respectively matches somebody with somebody a set of locating piece two and latch two, realize
Circular dividing table is accurately positioned.
(4) element positioning fixture realizes 37 different elements of group and being accurately positioned for two end plates；
Element positioning fixture is made up of fixture housing, grid spacer, end plate clamper, guide ring and backing plate；
Grid spacer, guide ring are fixed on fixture housing by screw, are manually inserted in fixture according to the other position of each group,
Realize the positioning of elements；
End plate clamper is fixed on the two ends of fixture housing by screw, for the positioning of end plate；
Backing plate is buckled in the clamper after welding first end, and cluster is supported when being welded for the second end, it is to avoid because welding is pressed
Power is excessive to cause the damage of clamper.
(5) welding machine general frame combined by upright supports plate weld, welding machine fuselage, element positioning fixture turning device, weldering
Connect transformer, man-machine interaction display screen composition.
In welding machine general frame, consolidating for element positioning fixture is used for by the element positioning fixture turning device in frame left
Fixed, by manually 37 elements are inserted into fixture, right side turning device realizes that fixture overturns；
Welding transformer is fixed and welding machine fuselage, there is provided element welder power supply；
Man-machine interaction display screen install with welding machine fuselage right side, there is provided to operating personnel weld it is upset, welding point information,
Welding heat is set.
It is as shown in Figure 2,3 cluster end plate welding equipment, 37 nuclear fuel elements 01 and two end plates in Fig. 1 can be completed
The 02 all stations for being welded into finished product cluster.
The equipment is by element welder 1, ring gauge positioner 2, rotatable platform device 3, element positioning fixture 4 and welding machine
The most of composition of general frame 5 five.Element welder 1, ring gauge positioner 2, rotatable platform device 3 are fixed on by screw
The upper, middle and lower portion of welding machine fuselage, element positioning fixture 4 is fixed on rotatable platform device 3 by locating piece.
It is as shown in Figure 4,5 element welder, its concrete operating principle is as follows：Determining after the completion of 37 element clampings
Position fixture is moved to when under element welder, and earth polar indexing member 106 is got to the locating slot of correspondence indexing positioning disk 111
Interior, control system drives lift cylinder 101, earth polar cylinder 103 to move downward so that central electrode 104 is pressed on end plate, earth polar
105 are pressed on element, to be finally powered and produce a large amount of resistance heats in end plate and element contact position so that two parts weld together, end
Plate weld principle is as shown in Figure 6.Compression spring 110 is housed on connecting bolt bar 109, there is cushioning effect during welding motion.When
When situation earth polar is pressed onto end plate beyond generation, the overall motion upwards of soldering tip component is so as to trigger limit switch 107 so that lifting air
Cylinder rises rapidly, so as to avoid welding circuit short circuit, protect end plate.In order to detect the welding quality of each solder joint, at this
Erecting and welding monitoring sensor 108 in device, by monitoring the decrement of the front and rear sensor of welding and doing difference, obtains every unit
The upset value of part welding.Welder support 102 supports whole device, and the top of welding machine fuselage 503 is installed to by screw.
It is as Figure 7-9 ring gauge positioner, the upper of element positioning fixture is buckled in by ring gauge 201 in end plate welding process
End, realizes the positioning of its upper end；Ring gauge is mounted below latch 202 and locating piece 203, root on locating piece laterally and longitudinally
Locating and machining hole is needed according to positioning.When the inner and outer ring for welding cluster is changed, artificial running fix ring is coordinated by pin-and-hole and realized
Ring gauge is horizontal, longitudinal direction positioning.The parts such as the supporting ring gauge of positioning ring device support 204, are connected by screw in welding machine fuselage 503
Portion.
Figure 10,11 show rotatable platform device；The device lateral, longitudinal direction and circumference graduation positioning method and ring gauge phase
Together, the plane of rotary indexing table 301 is realized with manual indexing means 303, latch 305 and the upper Positioning holes of locating piece 304
Positioning.Rotary indexing table 301 is rotation cylinder, by control system according to each group needs, realizes automatic rotation.Sensor 302
Real-time detection fixture longitudinal measure position, judges the group of soldered elements, it is to avoid artificial operating mistake.
Element positioning fixture as shown in Figure 12,13, fixture housing 403 is body contours structure, for stationary fixture backing plate
401st, grid spacer 404, guide ring 402 and end plate clamper 405.One cluster contains 5 elements of group, each group unit
Part supporting pad is different with the suitable amount of spacing block.During artificial mounting clamping element 01, according in the corresponding hole of the other difference insertion of element group.
The spacing block 04 of element, support pads 03 are engaged with the groove of grid spacer, middle guide ring realizes being accurately positioned in the middle part of element.
Two ends installation end plate holder, on the one hand realizes that element ends are positioned, and on the other hand realizes the fixation of end plate 02.
It is as shown in figure 14 welding machine general frame, the combination 501 of upright supports plate weld is whole as welding machine with welding machine fuselage 502
Body support frame；Welding transformer 503 provides element welder power supply；Operating personnel pass through human-computer interaction device in welding process
504 check the information such as welding heat, upset and welding points.Regulator cubicle 506 mainly installs magnetic valve and pressure regulator valve, for compressing
The break-make of air, argon flow amount etc. realizes motion or the welding oxidation protection of pneumatic element；Element positioning fixture turning device 506
Realize the fixation and upset of element positioning fixture.
The equipment specific works step is as follows：
(1) people's frock cluster：Element positioning fixture is fixed on left side overturning and positioning device, manually 37 elements is inserted
It is fixed on fixture with nut in fixture, and after first end end plate is put into end plate clamper.
(2) first end welding：First, rotatable platform device is moved under the overturning and positioning device of left side, fixture is put into
It is fixed after rotatable platform.Then, fixture is moved to and cause under soldering tip that clamp central element is coaxial with soldering tip, and by ring gauge
It is buckled in fixture upper end.Finally, soldering tip decline has inner ring to be welded to outer shroud successively (needs artificial mobile turn in the process
Moving platform and ring gauge realize the replacing of inner ring and outer shroud, rotate earth polar indexing and turntable indexing).
(3) the second end end plate is installed：First, rotatable platform moves to right side overturning and positioning device, and fixture backing plate is anchored to
The first end of weld jig；Then, fixture is carried out into 180 ° of upset；Finally, grid spacer is extracted out from fixture, and will be non-
Mark end end plate is put into end plate clamper and is fixed on fixture.
Weld at (4) second ends：It is essentially identical with mark end, connect by inner ring successively outside boxing.Operated more than, realized
The end plate welding of CANDU-6 clusters.
Claims (7)
1. a kind of end plate welding equipment of nuclear fuel cluster, it is characterised in that：According to the difference of function, end plate soldering equipment is divided into unit
Part welder, ring gauge positioner, rotatable platform device, element positioning fixture and welding machine general frame 5 are most of；Element is welded
Connection device, ring gauge positioner, rotatable platform device are fixed on the upper, middle and lower portion of welding machine fuselage, element locating clip by screw
Tool is fixed on rotatable platform device by locating piece；
(1) element welder realizes the welding of end plate and the monitoring of welding quality and protection using piezoresistive weldering；
(2) ring gauge positioner realizes that the upper end of element positioning fixture is fixed, and each element and electricity in welding process are ensured indirectly
The axiality of pole；
(3) rotatable platform device realize the positioning of element positioning fixture bottom, the rotation of element positioning fixture order, longitudinal direction and
Horizontal movement and positioning, the indexing of manual circumferencial direction and positioning；
(4) element positioning fixture realizes 37 different elements of group and being accurately positioned for two end plates；
(5) welding machine general frame combined by upright supports plate weld, welding machine fuselage, element positioning fixture turning device, welding become
Depressor, man-machine interaction display screen composition.
2. a kind of end plate welding equipment of nuclear fuel cluster as claimed in claim 1, it is characterised in that：Element welder bag
Include lift cylinder, connecting bolt, spring, welder support, earth polar indexing member, indexing positioning disk, earth polar cylinder, middle electrocardio
Pole, earth polar, limit switch, welding monitoring sensor；
Lift cylinder is arranged on welder support, is connected with central electrode by connecting bolt part, there is provided middle electrocardio
Extremely apply the lifting of active force, soldering tip part to end plate；
Spring is arranged on connecting bolt bar, it is to avoid rigid shock, a cushioning effect when lift cylinder is moved；
Earth polar cylinder is arranged on the downside of support, there is provided earth polar applies active force to element；
Earth polar indexing member is arranged on the upside of earth polar cylinder with indexing positioning disk, realizes the adjustment of earth polar leg location；
Central electrode is respectively positioned on the downside of earth polar cylinder with earth polar, and the two is co-axially mounted so that central electrode pressure when end plate is welded
It is pressed onto on element to end plate, earth polar；
Limit switch is arranged on the cylinder of earth polar, it is to avoid earth polar supporting leg is pressed onto the short circuit caused during end plate；
Welding monitoring sensor is arranged on the side of welder support, and the Upsetting of every element welding of real-time monitoring is slightly worth.
3. a kind of end plate welding equipment of nuclear fuel cluster as claimed in claim 1, it is characterised in that：Ring gauge positioner bag
Include：Ring gauge, latch one, locating piece one and positioning ring device support；
Ring gauge is fixed on the top of ring gauge positioner by screw, and its downside is provided with laterally and longitudinally guide rail, and equipped with horizontal stroke
To alignment pin and locating piece with longitudinal direction；
Ring gauge inner ring sleeve coordinates rotatable platform device to move together in the upper end of element positioning fixture on horizontal, vertical guide rail, and
Realized the position adjustment of both direction and be accurately positioned by latch one, locating piece one and positioning ring device support.
4. a kind of end plate welding equipment of nuclear fuel cluster as claimed in claim 1, it is characterised in that：Rotatable platform device bag
Include：The device includes：Rotary indexing table, sensor, manual indexing means, locating piece two and latch two；
Rotary indexing table installs the top with the device, realizes the automatic rotation of circumferencial direction；
The upper surface of circular dividing table is equipped with locating piece and locking spring, for the fixation of element positioning fixture；
Sensor is installed on the vertical front of the device, judges the position of rotary indexing table longitudinal direction, it is to avoid maloperation；
Manual indexing means is arranged on below circular dividing table, the position adjustment of manually implemented circumferencial direction；
Laterally and longitudinally guide rail is installed on the downside of rotary indexing table, and respectively matches somebody with somebody a set of locating piece two and latch two, realize indexing
Platform is accurately positioned.
5. a kind of end plate welding equipment of nuclear fuel cluster as claimed in claim 1, it is characterised in that：Element positioning fixture by
Fixture housing, grid spacer, end plate clamper, guide ring and backing plate composition；
Grid spacer, guide ring are fixed on fixture housing by screw, manually according in the other position insertion fixture of each group, realize
The positioning of elements；
End plate clamper is fixed on the two ends of fixture housing by screw, for the positioning of end plate；
Backing plate is buckled in the clamper after welding first end, supports cluster when being welded for the second end, it is to avoid because of welding pressure mistake
Cause the damage of clamper greatly.
6. a kind of end plate welding equipment of nuclear fuel cluster as claimed in claim 1, it is characterised in that：Welding machine general frame
In, by being used for the fixation of element positioning fixture in the element positioning fixture turning device of frame left, by manually by 37 elements
It is inserted into fixture, right side turning device realizes that fixture overturns；
Welding transformer is fixed and welding machine fuselage, there is provided element welder power supply；
Man-machine interaction display screen is installed and welding machine fuselage right side, there is provided welded upset, welding point information to operating personnel, set
Welding heat.
7. a kind of end plate welding equipment of nuclear fuel cluster as claimed in claim 1, it is characterised in that：Element welder bag
Include lift cylinder, connecting bolt, spring, welder support, earth polar indexing member, indexing positioning disk, earth polar cylinder, middle electrocardio
Pole, earth polar, limit switch, welding monitoring sensor；
Lift cylinder is arranged on welder support, is connected with central electrode by connecting bolt part, there is provided middle electrocardio
Extremely apply the lifting of active force, soldering tip part to end plate；
Spring is arranged on connecting bolt bar, it is to avoid rigid shock, a cushioning effect when lift cylinder is moved；
Earth polar cylinder is arranged on the downside of support, there is provided earth polar applies active force to element；
Earth polar indexing member is arranged on the upside of earth polar cylinder with indexing positioning disk, realizes the adjustment of earth polar leg location；
Central electrode is respectively positioned on the downside of earth polar cylinder with earth polar, and the two is co-axially mounted so that central electrode pressure when end plate is welded
It is pressed onto on element to end plate, earth polar；
Limit switch is arranged on the cylinder of earth polar, it is to avoid earth polar supporting leg is pressed onto the short circuit caused during end plate；
Welding monitoring sensor is arranged on the side of welder support, and the Upsetting of every element welding of real-time monitoring is slightly worth；
Ring gauge positioner includes：Ring gauge, latch one, locating piece one and positioning ring device support；
Ring gauge is fixed on the top of ring gauge positioner by screw, and its downside is provided with laterally and longitudinally guide rail, and equipped with horizontal stroke
To alignment pin and locating piece with longitudinal direction；
Ring gauge inner ring sleeve coordinates rotatable platform device to move together in the upper end of element positioning fixture on horizontal, vertical guide rail, and
Realized the position adjustment of both direction and be accurately positioned by latch one, locating piece one and positioning ring device support；
Rotatable platform device includes：The device includes：Rotary indexing table, sensor, manual indexing means, locating piece two and latch
Two；
Rotary indexing table installs the top with the device, realizes the automatic rotation of circumferencial direction；
The upper surface of circular dividing table is equipped with locating piece and locking spring, for the fixation of element positioning fixture；
Sensor is installed on the vertical front of the device, judges the position of rotary indexing table longitudinal direction, it is to avoid maloperation；
Manual indexing means is arranged on below circular dividing table, the position adjustment of manually implemented circumferencial direction；
Laterally and longitudinally guide rail is installed on the downside of rotary indexing table, and respectively matches somebody with somebody a set of locating piece two and latch two, realize indexing
Platform is accurately positioned；
Element positioning fixture is made up of fixture housing, grid spacer, end plate clamper, guide ring and backing plate；
Grid spacer, guide ring are fixed on fixture housing by screw, manually according in the other position insertion fixture of each group, realize
The positioning of elements；
End plate clamper is fixed on the two ends of fixture housing by screw, for the positioning of end plate；
Backing plate is buckled in the clamper after welding first end, supports cluster when being welded for the second end, it is to avoid because of welding pressure mistake
Cause the damage of clamper greatly；
In welding machine general frame, by being used for the fixation of element positioning fixture in the element positioning fixture turning device of frame left,
By manually 37 elements are inserted into fixture, right side turning device realizes that fixture overturns；
Welding transformer is fixed and welding machine fuselage, there is provided element welder power supply；
Man-machine interaction display screen is installed and welding machine fuselage right side, there is provided welded upset, welding point information to operating personnel, set
Welding heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234812.8A CN106695097B (en) | 2016-12-28 | 2016-12-28 | A kind of end plate welding equipment of nuclear fuel cluster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234812.8A CN106695097B (en) | 2016-12-28 | 2016-12-28 | A kind of end plate welding equipment of nuclear fuel cluster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106695097A true CN106695097A (en) | 2017-05-24 |
| CN106695097B CN106695097B (en) | 2019-01-08 |
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ID=58902880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611234812.8A Active CN106695097B (en) | 2016-12-28 | 2016-12-28 | A kind of end plate welding equipment of nuclear fuel cluster |
Country Status (1)
| Country | Link |
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| CN (1) | CN106695097B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111554423A (en) * | 2020-04-30 | 2020-08-18 | 中核北方核燃料元件有限公司 | Welding electrode for pressurized water reactor annular fuel assembly framework |
| CN113118682A (en) * | 2019-12-30 | 2021-07-16 | 中核北方核燃料元件有限公司 | Split rod bundle clamp for automatic end plate welding |
| CN113118669A (en) * | 2019-12-30 | 2021-07-16 | 中核北方核燃料元件有限公司 | Rod bundle carrying clamp picked up by integrated end plate |
| CN113399904A (en) * | 2021-06-16 | 2021-09-17 | 三门技师学院 | End plate welding equipment for nuclear fuel rod bundle |
| CN114473329A (en) * | 2020-11-12 | 2022-05-13 | 中核北方核燃料元件有限公司 | Automatic end plate welding machine for nuclear fuel rod bundle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118682A (en) * | 2019-12-30 | 2021-07-16 | 中核北方核燃料元件有限公司 | Split rod bundle clamp for automatic end plate welding |
| CN113118669A (en) * | 2019-12-30 | 2021-07-16 | 中核北方核燃料元件有限公司 | Rod bundle carrying clamp picked up by integrated end plate |
| CN113118669B (en) * | 2019-12-30 | 2023-05-12 | 中核北方核燃料元件有限公司 | Rod bundle carrying clamp for picking up integrated end plate |
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| CN114473329A (en) * | 2020-11-12 | 2022-05-13 | 中核北方核燃料元件有限公司 | Automatic end plate welding machine for nuclear fuel rod bundle |
| CN114473329B (en) * | 2020-11-12 | 2023-11-14 | 中核北方核燃料元件有限公司 | Automatic end plate welding machine for nuclear fuel rod bundles |
| CN113399904A (en) * | 2021-06-16 | 2021-09-17 | 三门技师学院 | End plate welding equipment for nuclear fuel rod bundle |
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|---|---|
| CN106695097B (en) | 2019-01-08 |
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Effective date of registration: 20200430 Address after: 456 box 014035, Castle Peak District, the Inner Mongolia Autonomous Region, Baotou Co-patentee after: China Atomic Energy Industry Co., Ltd Patentee after: CHINA NORTH NUCLEAR FUEL Co.,Ltd. Address before: 014035 science and Technology Department, 456 mailbox, Qingshan District, the Inner Mongolia Autonomous Region, Baotou Patentee before: CHINA NORTH NUCLEAR FUEL Co.,Ltd. |
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