CN115582622A - Laser welding system and method for a blast valve - Google Patents

Laser welding system and method for a blast valve Download PDF

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Publication number
CN115582622A
CN115582622A CN202211267130.2A CN202211267130A CN115582622A CN 115582622 A CN115582622 A CN 115582622A CN 202211267130 A CN202211267130 A CN 202211267130A CN 115582622 A CN115582622 A CN 115582622A
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CN
China
Prior art keywords
laser
cartridge
rotary table
laser welding
welding system
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Pending
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CN202211267130.2A
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Chinese (zh)
Inventor
李小龙
王育军
方斌
李鹏飞
司际霞
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Shanxi Jianghuai Heavy Industry Co Ltd
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Shanxi Jianghuai Heavy Industry Co Ltd
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Application filed by Shanxi Jianghuai Heavy Industry Co Ltd filed Critical Shanxi Jianghuai Heavy Industry Co Ltd
Priority to CN202211267130.2A priority Critical patent/CN115582622A/en
Publication of CN115582622A publication Critical patent/CN115582622A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention discloses a laser welding system and a method for a blasting valve, wherein the blasting valve comprises a cartridge case and an input sealing disc arranged on the cartridge case, and the laser welding system comprises: the device comprises a rotary table, a vacuum adsorption device and a laser, wherein a cartridge is hermetically connected with the vacuum adsorption device which is arranged on the rotary table; outputting laser beams by a laser to weld the input sealing disc; after the vacuum adsorption device adsorbs the input sealing disc in the positioning groove of the cartridge according to the received welding instruction, the turntable drives the cartridge to rotate along a set direction according to the welding instruction, and the laser outputs laser beams according to the welding instruction to weld the input sealing disc.

Description

Laser welding system and method for blast valve
Technical Field
The invention belongs to the technical field of laser welding, and particularly relates to a laser welding system and method for a blast valve.
Background
The blast valve is a key device of the AP1000 third nuclear power technology, is designed for cooling a reactor and preventing nuclear diffusion under the accident condition of a nuclear power station, has extremely important safety and reliability requirements, and is classified as a national science and technology significant special item of a large-scale advanced pressurized water reactor and high-temperature gas cooled reactor nuclear power station by digestion and development.
The cartridge is the core component of the explosion valve, has extremely high requirement on the leakage rate, reaches 1 multiplied by 10 < -6 > Pa.m < 3 >/s, and the laser welding quality of the input sealing disc and the input cylinder body is the main factor influencing the leakage rate. The sealing disc is tightly attached to the bottom of a welding groove of the cylinder during laser welding, and most of the welding modes in the prior art adopt a mode that a tool is used for manual compaction, a laser is manually controlled to uniformly spot-weld a plurality of points along the radial direction, and then continuous laser is programmed to complete welding; the mode II adopts a special tool to compress the sealing disc for spot welding, and then programming continuous welding is carried out. However, the thickness of the input sealing disc is very thin and is only 0.1mm, so that the input sealing disc naturally has wave deformation, and the prior mode has the following problems:
1) Manual compaction is adopted, welding points of positioning welding cannot be attached, and residual deformation and residual stress exist; the consistency of manual operation is poor, the surface of the sealing disc is easily scratched by a tool, and the production efficiency is low;
2) The special tool is adopted for pressing, although the problem of poor consistency of manual operation is solved, residual deformation and residual stress still exist after spot welding, the bottom of the tool impresses on the surface of a sealing disc, and the efficiency of tool installation, disassembly and adjustment is lower than that of manual pressing.
Accordingly, it is desirable to develop a laser welding system and method for a burst valve that overcomes the above-mentioned drawbacks.
Disclosure of Invention
In order to solve the above problems, the present invention provides a laser welding system and method for a burst valve, wherein the burst valve includes a cartridge case and an input sealing disc disposed on the cartridge case, and the laser welding system includes:
a turntable;
the cartridge is hermetically connected with the vacuum adsorption device, and the vacuum adsorption device is arranged on the rotary table;
the laser outputs laser beams to weld the input sealing disc;
the vacuum adsorption device adsorbs the input sealing disc in the positioning groove of the cartridge case according to the received welding instruction, the rotary table drives the cartridge case to rotate along a set direction according to the welding instruction, and meanwhile, the laser outputs the laser beam according to the welding instruction to weld the input sealing disc.
The laser welding system further comprises: and the console is electrically connected with the rotary table, the vacuum adsorption device and the laser, and receives and outputs the welding instruction to the rotary table, the vacuum adsorption device and the laser.
The laser welding system further comprises:
the first position sensor is embedded in the positioning groove and electrically connected to the console, when the input sealing disc is adsorbed to a first preset position and attached to the first position sensor, the first position sensor outputs an adsorption in-place signal to the console, and the console outputs the welding instruction to the turntable and the laser again according to the adsorption in-place signal;
and the second position sensor is arranged on the rotary table, outputs a welding completion signal to the console when the rotary table drives the cartridge to rotate to a welding completion position, and the console outputs a stop command to the rotary table, the vacuum adsorption device and the laser.
The laser welding system described above, wherein said vacuum adsorption device comprises:
the vacuum pump is electrically connected to the console;
the adsorption component is connected to the medicine cylinder and the rotary table, the adsorption component is provided with an air passage, and the vacuum pump pumps out air in the inner cavity of the medicine cylinder through the air passage so that the input sealing disc is adsorbed in the positioning groove.
The laser welding system of the above, wherein the adsorption component comprises:
one end of the rotatable part is connected with the medicine cartridge in a sealing mode, the other end of the rotatable part is clamped by the rotary table to drive the medicine cartridge to rotate, an axial air passage is formed in the rotatable part, and one end of the axial air passage is communicated with an inner cavity of the medicine cartridge;
the fixing piece is sleeved on the rotatable piece, a radial air passage is formed in the fixing piece, one end of the radial air passage is communicated with the axial air passage, and the other end of the radial air passage is connected with the vacuum pump.
In the laser welding system, the rotatable member includes a first connecting portion, a second connecting portion, a third connecting portion and a clamping portion which are sequentially connected from top to bottom;
the first connecting part is connected with the inner wall of the inner cavity of the medicine cylinder in a sealing way;
the second connecting part is connected with the bottom end face of the medicine cylinder in a sealing way;
the fixing piece is sleeved on the third connecting portion, and the axial air passage extends from the first connecting portion to the third connecting portion;
the clamping part, revolving stage centre gripping the clamping part drives the cartridge case rotates.
In the laser welding system, the side wall of the third connecting portion is provided with a plurality of air holes at intervals, the air holes are communicated with the axial air passages, and when the rotary table drives the rotatable part to rotate in the fixed part, the radial air passages are communicated with the axial air passages one by one through the air holes, so that the inner cavity of the cartridge can maintain continuous negative pressure.
The laser welding system of the above, wherein the fixing member includes:
the annular part is sleeved on the third connecting part;
the straight portion is connected to the annular portion, and the radial air passage extends to the annular portion from the straight portion so that the radial air passage is communicated with the air hole in an alignment mode.
In the laser welding system, the first position sensor is embedded in the side wall of the positioning groove, or the first position sensor is embedded in the bottom wall of the positioning groove.
The invention also provides a laser welding method for the explosion valve, wherein the explosion valve comprises a cartridge and an input sealing disc arranged on the cartridge, and the laser welding method comprises the following steps:
adsorbing the input sealing disc to a positioning groove of the cartridge by a vacuum adsorption device;
the drug cylinder is driven to rotate along a set direction through the rotary table;
the input sealing disk is welded by a laser as the cartridge rotates.
Compared with the prior art, the invention has the following effects: the laser welding system ensures that the input sealing disc is always tightly attached to the bottom of the positioning groove and the gap between the input sealing disc and the side wall of the positioning groove is always kept unchanged in the thermal welding process, so that the welding deformation and the residual stress are reduced to the maximum extent, and the welding quality is stable; meanwhile, mechanical indentation and surface scratch caused to the input sealing disc in the pressing process are avoided, the time for positioning welding and dismounting mechanical tools is saved, and the production efficiency is greatly improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a laser welding system according to the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a partial cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of the rotatable member;
fig. 5 is a schematic structural view of the fixing member.
Wherein the reference numbers are:
a cartridge: 11;
positioning the groove: 111;
inner cavity: s;
inputting a sealing disc: 12;
turning the table: 21;
a vacuum adsorption device: 22;
a vacuum pump: 221;
an adsorption component: 222, c;
a rotatable member: 2221;
axial air passage: q1;
a first connection portion: l1;
a second connection portion: l2;
a third connecting part: l3;
air holes: k;
a clamping part: l4;
fixing the components: 2222;
a ring-shaped part: l5;
a straight part: l6;
radial air passages: q2;
a laser: 23;
laser beam: 231;
a console: 24;
a first position sensor: 25;
a second position sensor: 26;
setting the direction: and R is shown in the specification.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The exemplary embodiments of the present invention and the description thereof are provided to explain the present invention and not to limit the present invention. In addition, the same or similar reference numbers used in the drawings and the embodiments are used to denote the same or similar parts.
As used herein, the terms "first", "second", "S1", "S2", "8230, etc. do not particularly denote any order or sequence, nor do they limit the present invention, but rather are used to distinguish one element from another or from another element described in the same technical term.
With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are directions with reference to the drawings only. Accordingly, the directional terminology used is intended to be illustrative and not limiting of the present disclosure.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the described items.
"plurality" in reference to this text includes "two" and "more than two"; reference to "a plurality of groups" herein includes "two groups" and "more than two groups".
Certain terms used to describe the present application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present application.
Referring to fig. 1-3, fig. 1 is a schematic structural view of a laser welding system according to the present invention; FIG. 2 is an enlarged partial schematic view of FIG. 1; fig. 3 is a partial cross-sectional view of fig. 1. As shown in fig. 1-3, the burst valve comprises a cartridge 11 and an input sealing disk 12 disposed on the cartridge, wherein the laser welding system comprises: the device comprises a rotary table 21, a vacuum adsorption device 22 and a laser 23, wherein the cartridge 11 is hermetically connected with the vacuum adsorption device 22, and the vacuum adsorption device 22 is arranged on the rotary table 21; the laser 23 outputs a laser beam 231 to weld the input sealing disk 12; after the vacuum adsorption device 22 adsorbs the input sealing disc 12 in the positioning groove 111 of the cartridge 11 according to the received welding instruction, the turntable 21 drives the cartridge 11 to rotate along a set direction R according to the welding instruction, and the laser 23 outputs the laser beam 231 according to the welding instruction to weld the input sealing disc 12.
Further, the laser welding system further includes: and the console 24 is electrically connected to the turntable 21, the vacuum adsorption device 22 and the laser 23, and the console 24 receives and outputs the welding instruction to the turntable 21, the vacuum adsorption device 22 and the laser 23.
Still further, the laser welding system further comprises: a first position sensor 25 and a second position sensor 26; the first position sensor 25 is embedded in the positioning groove 111 and electrically connected to the console 24, when the vacuum adsorption device 22 receives the welding command output by the console, the vacuum adsorption device 22 starts to adsorb the input sealing disc 12, when the input sealing disc 12 is adsorbed to a first preset position and attached to the first position sensor 25, the first position sensor 25 outputs an adsorption-in-place signal to the console 24, at this time, the console 24 outputs the welding command to the turntable 21 and the laser 23 according to the adsorption-in-place signal, and the turntable 21 and the laser 23 start to work; the second position sensor 26 is installed on the turntable 21, and outputs a welding completion signal to the console 24 when the turntable 21 drives the cartridge 11 to rotate to a welding completion position, the console 23 outputs a stop instruction to the turntable 21, the vacuum adsorption device 22 and the laser 23, and the turntable 21, the vacuum adsorption device 22 and the laser 23 stop working according to the stop instruction.
In this embodiment, the first position sensor 25 is embedded in the bottom wall of the positioning groove 111, and the first predetermined position is that the input sealing disk 12 is tightly attached to the bottom wall of the positioning groove 111, but the invention is not limited thereto, and in another embodiment of the invention, the first position sensor 25 may also be embedded in the side wall of the positioning groove 111.
Referring to fig. 4-5, fig. 4 is a schematic structural view of the rotatable member; fig. 5 is a schematic structural view of the fixing member. As shown in fig. 4-5, and referring to fig. 1-3, the vacuum absorption device 22 includes: a vacuum pump 221 and an adsorption module 222; the vacuum pump 221 is electrically connected to the console 24; the suction unit 222 is connected to the medicine cartridge 11 and the turntable 21, the suction unit 22 has an air passage, and the vacuum pump 221 draws air in the inner cavity S of the medicine cartridge 11 through the air passage so that the input sealing disk 12 is sucked into the positioning groove 111.
Wherein the adsorption component 222 comprises: a rotatable part 2221 and a fixed part 2222, wherein one end of the rotatable part 2221 is hermetically connected to the cartridge 11, the other end of the rotatable part 2221 is clamped by the rotary table 21 to drive the cartridge 11 to rotate, an axial air passage Q1 is formed in the rotatable part 2221, and one end of the axial air passage Q1 is communicated with the inner cavity S of the cartridge 11; the fixed part 2222 is sleeved on the rotatable part 2221, a radial air passage Q2 is formed in the fixed part 2222, one end of the radial air passage Q2 is communicated with the axial air passage Q1, and the other end of the radial air passage Q2 is connected with the vacuum pump 24.
Further, the rotatable part 2221 includes a first connecting portion L1, a second connecting portion L2, a third connecting portion L3 and a clamping portion L4, which are connected in sequence from top to bottom; the first connecting part L1 is connected with the inner wall of the inner cavity S of the medicine cartridge 11 in a sealing way; the second connecting part L2 is connected to the bottom end face of the medicine cartridge 11 in a sealing manner; the fixing member 2222 is sleeved on the third connecting portion L3, and the axial air passage Q1 extends from the first connecting portion L1 to the third connecting portion L3; the turntable 21 clamps the clamping portion L4 to drive the medicine cartridge 11 to rotate. A plurality of air holes K communicated with the axial air passage Q1 are formed in the side wall of the third connecting portion L3 at intervals, and when the rotary table 21 drives the rotatable part 2221 to rotate in the fixed part 2222, the radial air passages Q2 are communicated with the axial air passage Q1 one by one through the air holes K, so that continuous negative pressure is maintained in the inner cavity S of the cartridge 11, and the input sealing disk 12 is stably adsorbed.
In the embodiment, six air holes K are formed in the side wall of the third connecting portion L3 at intervals, the six air holes K are uniformly distributed on the side wall, and the air holes K are sequentially communicated with the radial air passage Q2 during welding, so that continuity of negative pressure is ensured.
In addition, the first connecting part L1 ensures the precision of the outer diameter of the processing and is precisely attached to the inner wall of the inner cavity S of the cartridge 11, thereby ensuring the sealing property; the end face machining precision is guaranteed to second connecting portion L2, and with the accurate laminating of the bottom terminal surface of cartridge case 11, guarantee the leakproofness.
Still further, the fixing part 2222 includes: the annular portion L5 and the straight portion L6, the annular portion L5 is sleeved on the third connecting portion L3, and the third connecting portion L3 can rotate in the annular portion L5, wherein the joint between the rotatable part 2221 and the fixed part 2222 is tightly attached to ensure sealing performance, and the turntable 21 can ensure that the rotatable part 2221 and the cartridge 11 are smoothly rotated in the fixed part 2222; straight portion L6 connect in encircle and establish portion L5, radial air flue Q2 certainly straight portion L5 extends to encircle and establish portion L6, so that radial air flue Q2 is to the intercommunication be located gas pocket K.
In this embodiment, the rotatable member 2221 is made of a ptfe rod, which is resistant to high temperature and corrosion, has an extremely low friction coefficient, and has sealing and lubricating functions; the fixing member 2222 may also be made of teflon, but the invention is not limited thereto.
In another embodiment of the present invention, the first connecting portion L1, the second connecting portion L2, the third connecting portion L3 and the clamping portion L4 are a single piece.
In another embodiment of the present invention, the annular portion L5 and the straight portion L6 are a single piece.
The operation of the laser welding system of the present invention is described in detail below with reference to fig. 1-5 as follows:
1. the console 24 receives and outputs a welding instruction sent by an operator to the vacuum adsorption device 22, the vacuum pump 221 is started, air in the inner cavity S of the cartridge 11 is pumped out through the radial air passage Q2, the air hole K and the axial air passage Q1, negative pressure is generated in the cavity, and the input sealing disc 12 is adsorbed in the positioning groove 111;
2. the first position sensor 25 outputs an in-place adsorption signal to the console 24 after detecting that the input sealing disc 12 is adsorbed to a first preset position, wherein the first preset position is that the input sealing disc 12 is tightly attached to the bottom of the positioning groove 111, at this time, the console 24 outputs the welding instruction to the turntable 21 and the laser 23 according to the in-place adsorption signal, the turntable 21 and the laser 23 start to work, the laser 23 emits a laser beam 231 to be irradiated on the edges of the input sealing disc 12 and the positioning groove 111, the laser 23 is kept fixed, and meanwhile, the turntable 21 clamps the clamping part L4 to drive the cartridge 11 to uniformly rotate along the direction R for welding;
3. when the rotary table 21 drives the cartridge 11 to rotate to the welding completion position, a welding completion signal is output to the console 24, wherein the welding completion position can be set to a position when the cartridge 11 rotates 365 degrees along the direction R, so that the condition that welding is missed at the tail end or the starting end which may occur when the cartridge 11 rotates 360 degrees is avoided, the console 23 outputs a stop instruction to the rotary table 21, the vacuum adsorption device 22 and the laser 23 according to the welding completion signal, and the rotary table 21, the vacuum adsorption device 22 and the laser 23 stop working according to the stop instruction, so that welding is completed.
The invention also provides a laser welding method for the blast valve, wherein the laser welding system is applied, and the laser welding method comprises the following steps:
the input sealing disc is adsorbed on the positioning groove of the cartridge by a vacuum adsorption device;
the medicine cylinder is driven to rotate along a set direction through the rotary table;
the input sealing disk is welded by a laser as the cartridge rotates.
Therefore, the vacuum adsorption technology is adopted, the vacuum pump is utilized to produce negative pressure in the inner cavity of the cartridge, so that the input sealing disc made of thin metal sheets is uniformly and stably adsorbed in the welding positioning groove without being fixed by spot welding in advance and being pressed by a mechanical device, the residual deformation and the residual stress are greatly reduced, the welding consistency is good, the welding quality is high, and the welding efficiency is high.
In summary, the invention has the following advantages:
1) The negative pressure generated by vacuum ensures that the input sealing disc is always tightly attached to the bottom of the positioning groove and the gap between the input sealing disc and the wall of the positioning groove is always kept unchanged in the thermal process of welding, so that the welding deformation and the residual stress are reduced to the greatest extent, and the welding quality is stable;
2) Mechanical indentation and surface scratch caused by the input sealing disc are avoided;
3) The time for tack welding and dismounting the mechanical tool is saved, and the production efficiency is greatly improved;
4) The polytetrafluoroethylene material is adopted to ensure the sealing property and the lubricating property.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The laser welding system for the explosion valve is characterized in that the explosion valve comprises a cartridge case and an input sealing disc arranged on the cartridge case, and the laser welding system comprises:
a turntable;
the cartridge is hermetically connected with the vacuum adsorption device, and the vacuum adsorption device is arranged on the rotary table;
the laser outputs laser beams to weld the input sealing disc;
the vacuum adsorption device adsorbs the input sealing disc in the positioning groove of the cartridge case according to the received welding instruction, the rotary table drives the cartridge case to rotate along a set direction according to the welding instruction, and meanwhile, the laser outputs the laser beam according to the welding instruction to weld the input sealing disc.
2. The laser welding system of claim 1, further comprising: and the control console is electrically connected with the rotary table, the vacuum adsorption device and the laser, and receives and outputs the welding instruction to the rotary table, the vacuum adsorption device and the laser.
3. The laser welding system of claim 2, further comprising:
the first position sensor is embedded in the positioning groove and electrically connected to the console, when the input sealing disc is adsorbed to a first preset position and attached to the first position sensor, the first position sensor outputs an in-place adsorption signal to the console, and the console outputs the welding instruction to the turntable and the laser again according to the in-place adsorption signal;
and the second position sensor is arranged on the rotary table, outputs a welding completion signal to the console when the rotary table drives the cartridge to rotate to a welding completion position, and outputs a stop instruction to the rotary table, the vacuum adsorption device and the laser.
4. The laser welding system of claim 2 wherein the vacuum suction device comprises:
the vacuum pump is electrically connected to the console;
the adsorption component is connected on the cartridge case and on the revolving stage, the adsorption component has the air flue, the vacuum pump passes through the air flue is taken out air in the inner chamber of cartridge case so that the sealed dish of input is adsorbed in the positioning groove.
5. The laser welding system of claim 4, wherein the suction assembly comprises:
one end of the rotatable part is hermetically connected with the medicine cartridge, the other end of the rotatable part is clamped by the rotary table to drive the medicine cartridge to rotate, an axial air passage is formed in the rotatable part, and one end of the axial air passage is communicated with an inner cavity of the medicine cartridge;
the fixing piece is sleeved on the rotatable piece, a radial air passage is formed in the fixing piece, one end of the radial air passage is communicated with the axial air passage, and the other end of the radial air passage is connected with the vacuum pump.
6. The laser welding system of claim 5, wherein the rotatable member comprises a first connecting portion, a second connecting portion, a third connecting portion and a clamping portion connected in sequence from top to bottom;
the first connecting part is connected with the inner wall of the inner cavity of the medicine cylinder in a sealing way;
the second connecting part is connected with the bottom end face of the medicine cylinder in a sealing way;
the fixing piece is sleeved on the third connecting portion, and the axial air passage extends from the first connecting portion to the third connecting portion;
the clamping part is clamped by the rotary table and drives the cartridge case to rotate.
7. The laser welding system of claim 6, wherein a plurality of air holes are formed in the side wall of the third connecting portion at intervals to communicate with the axial air passages, and when the rotary table drives the rotatable member to rotate in the fixed member, the radial air passages communicate with the axial air passages one by one through the air holes, so that the inner cavity of the cartridge maintains a continuous negative pressure.
8. The laser welding system of claim 7, wherein the fixture comprises:
the annular part is sleeved on the third connecting part;
the straight portion is connected to the annular portion, and the radial air passage extends to the annular portion from the straight portion so that the radial air passage is communicated with the air hole in an alignment mode.
9. The laser welding system of claim 3, wherein the first position sensor is embedded in a sidewall of the positioning groove or the first position sensor is embedded in a bottom wall of the positioning groove.
10. A laser welding method for a burst valve, the burst valve comprising a cartridge and an input sealing disk disposed on the cartridge, the laser welding method comprising:
adsorbing the input sealing disc to a positioning groove of the cartridge by a vacuum adsorption device;
the drug cylinder is driven to rotate along a set direction through the rotary table;
the input sealing disk is welded by a laser as the cartridge rotates.
CN202211267130.2A 2022-10-17 2022-10-17 Laser welding system and method for a blast valve Pending CN115582622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211267130.2A CN115582622A (en) 2022-10-17 2022-10-17 Laser welding system and method for a blast valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211267130.2A CN115582622A (en) 2022-10-17 2022-10-17 Laser welding system and method for a blast valve

Publications (1)

Publication Number Publication Date
CN115582622A true CN115582622A (en) 2023-01-10

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Application Number Title Priority Date Filing Date
CN202211267130.2A Pending CN115582622A (en) 2022-10-17 2022-10-17 Laser welding system and method for a blast valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117697145A (en) * 2024-02-05 2024-03-15 斯缇福机械(苏州)有限公司 Continuous automatic welding treatment system for explosion-proof plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117697145A (en) * 2024-02-05 2024-03-15 斯缇福机械(苏州)有限公司 Continuous automatic welding treatment system for explosion-proof plate
CN117697145B (en) * 2024-02-05 2024-05-07 斯缇福机械(苏州)有限公司 Continuous automatic welding treatment system for explosion-proof plate

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