CN109773357A - The device of nitrogen protection when a kind of welding for laser galvanometer system - Google Patents
The device of nitrogen protection when a kind of welding for laser galvanometer system Download PDFInfo
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- CN109773357A CN109773357A CN201910238785.9A CN201910238785A CN109773357A CN 109773357 A CN109773357 A CN 109773357A CN 201910238785 A CN201910238785 A CN 201910238785A CN 109773357 A CN109773357 A CN 109773357A
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Abstract
The present invention relates to power battery laser welding processing technique fields; the device of nitrogen protection when especially a kind of welding for laser galvanometer system; it specifically includes that fixed bottom plate, the fixed bottom plate are arranged in horizontal direction, and center is equipped with window up and down；Nitrogen protection mechanism, the nitrogen protection mechanism is embedded in the window interior, and the nitrogen protection mechanism is equipped with the first weld pass up and down and erupts the nitrogen jet channel of nitrogen to welding position；Dedusting mechanism, it is described to be arranged for cover, and mask corresponds to the region of the nitrogen protection mechanism on the fixed bottom plate top, the dedusting mechanism top is equipped with the second weld pass for vertically corresponding to the weld pass.
Description
Technical field
The present invention relates to power battery laser welding processing technique fields, especially a kind of to weld for laser galvanometer system
When nitrogen protection device.
Background technique
In the welding process of current driving force battery laser galvanometer system, Product jointing is of poor quality, and nitrogen protection is not good enough, easy
Oxidation, product yield is not high, can greatly increase the production cost of enterprise, therefore power battery method for laser welding and welding in this way
The selection of technique will directly affect the consistency of the cost of product, quality, safety and product.
Summary of the invention
The purpose of the present invention is to provide a kind of devices of nitrogen protection when welding for laser galvanometer system, pass through we
Method is used to process the laser welding of power battery, and the welding procedure of battery can be effectively ensured, improve yields, reduce enterprise
Production cost.
The invention provides the following technical scheme: nitrogen protection device when a kind of welding for laser galvanometer system, main
It include: fixed bottom plate, the fixed bottom plate is arranged in horizontal direction, and center is equipped with window up and down；Nitrogen protection
Mechanism, the nitrogen protection mechanism is embedded in the window interior, and the nitrogen protection mechanism is equipped with first up and down
Weld pass and the nitrogen jet channel that nitrogen is erupted to welding position；Dedusting mechanism, it is described to be arranged for cover, and mask
The region of the nitrogen protection mechanism is corresponded on the fixed bottom plate top, the dedusting mechanism top is equipped with described in vertical correspond to
Second weld pass of weld pass.
Preferably, the nitrogen protection mechanism as up and down fold fall made of the first nitrogen protection block and the second nitrogen protection block
It constitutes, in the middle part of the nitrogen jet channel being set to up and down the second nitrogen protection block, first protection block pair
The injection channel region is answered to be equipped with the convex mouth extended to the lower part, first weld pass is located at the center of the figure mouth；Institute
The inner sidewall and convex mouth lateral wall interval for stating nitrogen jet channel are arranged, and the injection channel is arranged in a ring；Institute
It states and is equipped with nitrogen input interface at the top of the first nitrogen protection block, the first nitrogen protection block and the second nitrogen protection block
Contact surface is respectively equipped with groove, and the groove constitutes runner, and is connected to the nitrogen input interface and the jet channel.
Preferably, the first nitrogen protection block be additionally provided with it is multiple up and down and the spray orifice of the corresponding runner.
Preferably, the convex mouth small big back taper setting under being in, and the cricoid nitrogen jet channel is corresponding
The bottom of the convex mouth profile is in collapse shape to axis direction；Described nitrogen jet the bottom of the channel opening area is less than upper opening
Area.
Preferably, the dedusting mechanism lateral wall is equipped with jack, and the jack is equipped with to outside the nitrogen protection mechanism
The protective case that portion extends；The dedusting mechanism lateral wall is additionally provided with the gas vent of multiple perforations.
It preferably, further include circulator, the circulator includes the body being set side by side with the dedusting mechanism, institute
The body for being equipped with compression square-cavity in body is stated, and is movably connected in the compression square-cavity and compression square-cavity is divided into left compression
The piston of cavity and right compression square-cavity, the piston are equipped with for driving the piston to move back and forth in the compression square-cavity
Driving device；The driving device includes setting in the middle part of the piston and telescopic end is fixed on the right compression square-cavity side wall
On control cylinder, and be arranged on the body and protrude into the compression square-cavity to the piston motion play guiding make
Guide rod, the guide rod are convenient for supplementing air to the compression square-cavity to be hollow；The left side of the piston is equipped with groove,
The heating wire for heating air is equipped in the groove；Filter chamber is additionally provided in the body, grafting is set in the filter chamber
There is the pull case apparatus for holding filter core, the through-hole for being connected to left compression square-cavity and filter chamber, institute are equipped in the body
It states in filter chamber and atomizer is installed in the through hole, the body is equipped with the cabinet for holding cleaning mucus, with
And it is sent from the cabinet to the delivery pipe of the atomizer for mucus will to be cleaned；The body is equipped with described for being connected to
It is equipped with first communicating pipe for controlling the mucus air containing cleaning first communicating pipe of filter chamber and the right compression square-cavity
The first check valve of the right compression square-cavity is flowed to from the filter chamber；The body is equipped with to be held for being connected to the right compression
It is equipped with second communicating pipe for controlling the mucus air containing cleaning from institute second communicating pipe of chamber and the left compression square-cavity
State the second one-way valve that right compression square-cavity flows to the left compression square-cavity.
Preferably, the pull case apparatus includes the pull cabinet that bottom is equipped with venthole, and the pull-out box body is interior along it
Length direction is rotatably connected to drive screw, and it is opposite that the drive screw by the protrusion for being disposed therein portion is divided into hand of spiral
First thread segment and the second thread segment are respectively equipped with the first folder being threadedly coupled with first thread segment in the pull-out box body
Block and the second fixture block being threadedly coupled with second thread segment.
Preferably, the bottom of the pull cabinet is provided along its length guide protrusions A, and the bottom of the filter chamber is set
Have and the mutually matched guide chute A of the guide protrusions A；The bottom of first fixture block and second fixture block slides along
Direction is equipped with guide protrusions B, and the bottom of the pull cabinet is equipped with and the mutually matched guide chute B of the guide protrusions B；
Piston limit plate is equipped in the compression square-cavity on the side wall close to its left and right ends, the guide rod grafting is mounted on the work
It fills on limit plate.
Preferably, a kind of method of nitrogen protection when laser galvanometer system is welded, it is characterised in that include the following steps:
The fixed plate is fixed below laser head, and makes first weld pass, described second by the first step
Weld pass is coaxially set with the luminous beam of the laser head institute；
Second step, the tracheae that one end is connected with to nitrogen feedway run through through the protective case of the dedusting mechanism into described
Inside dedusting mechanism, and it is connected to the nitrogen input interface；
Third step makes the convex mouth close to welding position, and opens nitrogen feedway, keeps nitrogen logical through nitrogen jet
Road, spray orifice are to external eruption；
4th step, starting laser head, complete welding movement.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is nitrogen protection device schematic diagram of the present invention；
Fig. 2 is nitrogen cycle device schematic diagram of the present invention；
Fig. 3 is scene application schematic diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one:
Fig. 1, Fig. 2 are please referred to, nitrogen protection device when one kind is for the welding of laser galvanometer system specifically includes that fixation
Bottom plate 20, the fixed bottom plate 20 are arranged in horizontal direction, and center is equipped with window up and down；Nitrogen protection mechanism
24, the nitrogen protection mechanism 24 is embedded in the window interior, and the nitrogen protection mechanism 24 be equipped with up and down the
One weld pass 21 and the nitrogen jet channel 22 that nitrogen is erupted to welding position；Dedusting mechanism 23, it is described to be set for cover
It sets, and mask corresponds to the region of the nitrogen protection mechanism 24,23 top of dedusting mechanism on fixed 20 top of bottom plate
Equipped with the second weld pass 34 for vertically corresponding to the weld pass.
By above-mentioned setting, in laser beam welding, nitrogen, product office are sprayed to welding position in nitrogen jet channel 22
Portion generates high temperature, which is excited light beam effect and generates high temperature, and is connect at this time by the fine isolated product of blanket of nitrogen energy with air
Touching, avoids product from being oxidized in an environment of high temperature with air effect, ensure that welding procedure.Pass through dedusting when laser welding
It covers and pump drainage processing is carried out to the dust generated in welding process, be further ensured that welding procedure and working environment.
Embodiment two:
Preferably, the nitrogen protection mechanism 24 as fold up and down fall made of the first nitrogen protection block 26 and the second nitrogen protect
Protecting block 27 is constituted, the nitrogen jet channel 22 being set to up and down 27 middle part of the second nitrogen protection block, and described the
One protection block corresponds to the injection channel region and is equipped with the convex mouth 28 extended to the lower part, and first weld pass 21 is located at described
The center of figure mouth；The inner sidewall in the nitrogen jet channel 22 and the 28 lateral wall interval of convex mouth are arranged, and make the injection
Channel is arranged in a ring；Nitrogen input interface 29, the first nitrogen protection block are equipped at the top of the first nitrogen protection block 26
26 are respectively equipped with groove with the contact surface of the second nitrogen protection block 27, and the groove constitutes runner, and is connected to the nitrogen
Gas input interface 29 and the jet channel.
First nitrogen protection block 26 and the second nitrogen protection block 27 can structures by simple groove milling, drilling, turning process
Meet hydromechanical cyclic annular injection channel at the runner for supplying nitrogen, and by the formation of convex mouth 28, to not only drop
Low cost of manufacture also improves the jeting effect of nitrogen.
Embodiment three:
Preferably, the first nitrogen protection block 26 be additionally provided with it is multiple up and down and the spray orifice 30 of the corresponding runner.
The setting dispels the dust impurity in dedusting mechanism 23 so that nitrogen sprays upwards from spray orifice 30, drives
By in clean state in guarantee dedusting mechanism 23, therefore to the offer protection of the welding region of lower section.
Example IV:
The convex mouth 28 small big back taper setting under being in, and described in the cricoid correspondence of nitrogen jet channel 22
The bottom of 28 profile of convex mouth is in collapse shape to axis direction；The 22 bottom opening area of nitrogen jet channel is less than upper opening
Area.
By above-mentioned setting, so that the small big cone cylinder shape under being in of nitrogen jet channel 22, simultaneously because nitrogen jet is logical
The bottom section in road 22 is less than the section on top, so that nitrogen accelerates EJECTION VELOCITY, the nitrogen of high speed in course of injection
Gas air-flow can effectively understand the obstinate impurity in welding region, therefore reach cleaning action, while the stream of nitrogen gas of high speed,
Tolerance was increased during LASER BEAM WELDING, ensure that the effect of solder joint stable formation.
Embodiment five:
23 lateral wall of dedusting mechanism is equipped with jack 31, and the jack 31 is equipped with to outside the nitrogen protection mechanism 24
The protective case 32 that portion extends；23 lateral wall of dedusting mechanism is additionally provided with the gas vent 33 of multiple perforations.
By above-mentioned setting, nitrogen is sprayed from the spray orifice 30 of the first nitrogen protection block 26, so that dedusting mechanism 23
Interior air pressure increases, and under differential pressure action, internal gas is drained outward through gas vent 33, during this in dedusting mechanism 23
Dust impurity is sprayed with air motion to outside dedusting mechanism 23, so that keeping in the region that dedusting mechanism 23 is shrouded
Cleaning, and reach dustproof function, the environment of good cleaning is provided for welding.
Embodiment six:
It further include circulator according to Fig. 3, the circulator includes the machine being set side by side with the dedusting mechanism 23
Body, the interior body 1 for being equipped with compression square-cavity 101 of the body, and be movably connected in the compression square-cavity 101 and hold compression
Chamber 101 is divided into the piston 2 of left compression square-cavity 102 and right compression square-cavity 103, and the piston 2 is equipped with for driving the piston 2
The driving device moved back and forth in the compression square-cavity 101；The driving device includes setting at 2 middle part of piston and stretches
Contracting end is fixed on the control cylinder 17 on 103 side wall of right compression square-cavity, and is arranged on the body 1 and protrudes into described
The guide rod 18 of guiding role is played in compression square-cavity 101 to the piston 2 movement, the guide rod 18 is hollow convenient for the pressure
Capacity reducing chamber 101 supplements air；The left side of the piston 2 is equipped with groove 201, is equipped in the groove 201 for heating sky
The heating wire 19 of gas；Filter chamber 104 is additionally provided in the body 1,104 interpolation of filter chamber is equipped with for holding filter core
Pull case apparatus, the interior through-hole 105 being equipped with for being connected to left compression square-cavity 102 and filter chamber 104 of the body 1, the filtering
Atomizer 3 is installed at the through-hole 105 in chamber 104, the body 1 is equipped with the cabinet 4 for holding cleaning mucus,
And it is sent from the cabinet 4 to the delivery pipe 5 of the atomizer 3 for mucus will to be cleaned；The body 1 is equipped with for connecting
Lead to the first communicating pipe 6 of the filter chamber 104 and the right compression square-cavity 103, first communicating pipe 6 is equipped with for controlling
The mucus air containing cleaning flows to the first check valve 7 of the right compression square-cavity 103 from the filter chamber 104；It is set on the body 1
There is the second communicating pipe 8 for being connected to the right compression square-cavity 103 and the left compression square-cavity 102, on second communicating pipe 8
It is unidirectional equipped with second for controlling that the mucus air containing cleaning flows to the left compression square-cavity 102 from the right compression square-cavity 103
Valve 9.
By above-mentioned setting, when which works, the driving elongation driving piston 2 of cylinder 15 move downward so that
Gas in left compression square-cavity 102 is compressed and pressure rise, and then compressed gas is sprayed onto cleaning mucilage cavity from atomizer 3
It carries out completing to filter in atomized spray to filter core in 104 and by the cleaning mucus conveyed in delivery pipe 5；Due to piston 2
It moves downward so that generating negative pressure in right compression square-cavity 103, the gas containing cleaning mucus in cleaning mucilage cavity 104 passes through first
It enters communicating pipe 6 in right compression square-cavity 103.When driving cylinder 15 that piston 2 is driven to move right reset, right compression will be located at
The gas containing cleaning mucus in cavity 103 by sending the second communicating pipe 8 to left compression square-cavity 102, filter next time by waiting
Operation；When being filtered operation to filter core, the recycling of the mucus gas containing cleaning will not be arranged into gas the device, be subtracted significantly
The pollution caused by sky is lacked.It also filters the nitrogen iterative cycles in dedusting mechanism, becomes dust impurity four and dissipate and pollute periphery
Component
Embodiment seven
The pull case apparatus includes the pull cabinet 10 that bottom is equipped with venthole 1001, along it in the pull cabinet 10
Length direction is rotatably connected to drive screw 11, and the drive screw 11 is divided into hand of spiral by the protrusion 12 for being disposed therein portion
Opposite the first thread segment 1101 and the second thread segment 1102 is respectively equipped with and first thread segment in the pull cabinet 10
1101 the first fixture blocks 13 being threadedly coupled and the second fixture block 14 being threadedly coupled with second thread segment 1102.The pull-out box
The bottom of body 10 is provided along its length guide protrusions A1002, and the bottom of the filter chamber 104 is equipped with and the guide protrusions
The mutually matched guide chute A106 of A1002；The bottom of first fixture block 13 and second fixture block 14 slides along direction
It is equipped with guide protrusions B16, the bottom of the pull cabinet 10 is equipped with and the mutually matched guide chute of guide protrusions B16
B1003；Piston limit plate 107 is equipped in the compression square-cavity 101 on the side wall close to its left and right ends, the guide rod 18 is inserted
It connects and is mounted on the piston limit plate 107.
In above-mentioned setting, filter core is placed between the first fixture block 13 and the second fixture block 14, drive screw is then rotated
11 make the first fixture block 13 being threadedly coupled with first thread segment 1101 and are threadedly coupled with second thread segment 1102
The second fixture block 14 move toward one another and clamp filter core, ensure that stablizing for filter core is placed.It is equipped with filter chamber 104 in the body 1,
104 interpolation of filter chamber is equipped with the pull case apparatus for holding filter core, is equipped in the body 1 for being connected to left compression
The through-hole 105 of cavity 102 and filter chamber 104, the filter chamber 104 is interior to be equipped with atomizer 3, institute at the through-hole 105
It states body 1 to be equipped with for holding the cabinet 4 for cleaning mucus, and is sent from the cabinet 4 to the mist for mucus will to be cleaned
Change the delivery pipe 5 of spray head 3.
Embodiment eight:
A kind of method of nitrogen protection when laser galvanometer system is welded, it is characterised in that include the following steps:
The fixed plate is fixed on the lower section of laser head 25 by the first step, and makes first weld pass 21, described
Second weld pass 34 is coaxially set with the shone beam of the laser head 25；
Second step, one end is connected with the tracheae of nitrogen feedway through the protective case 32 of the dedusting mechanism 23 run through into
Inside the dedusting mechanism 23, and it is connected to the nitrogen input interface 29；
Third step makes the convex mouth 28 close to welding position, and opens nitrogen feedway, keeps nitrogen logical through nitrogen jet
Road 22, spray orifice 30 are to external eruption；
4th step, starting laser head 25, complete welding movement.
It is fixed specifically, carrying out position to fixed plate, for making laser beam smoothly pass through the device and to weld part
Part implements weld job, and the inert gas with protective effect is docked with nitrogen input interface 29, provides good guarantor thus
Shield effect, while under the effect of the pressure of nitrogen feedway, the impurity and dust in welding region can be also dispelled, therefore reach
The effect of dedusting is arrived.When laser head 25 works, the welding local and oxygen-barrier diffused described in nitrogen, therefore welding process
In, so that solder joint becomes firm, beautiful and consistency is good.
The method of nitrogen protection, can be suitable for when above-mentioned steps provide a kind of welding for power battery laser galvanometer
Technique requirement in power battery galvanometer laser welding process of manufacture, helps to improve production and processing technology and yield.It
Including nitrogen protection mechanism 24, dedusting mechanism 23 and galvanometer laser soldering device.The galvanometer laser soldering device mainly includes
X-Y optical scanning head, electric drive amplifier, optical reflecting lens；Nitrogen protection mechanism 24 includes the first nitrogen protection block 26
With the second nitrogen protection block 27, dedusting mechanism 23 includes dust excluding hood.Nitrogen enters the first nitrogen protection block 26 by nitrogen interface
And second between nitrogen protection block 27, and nitrogen protection is formed above the welding track of product to be welded (power battery top cover)
Layer, when laser beam acts on product, product locally generates high temperature, is at this moment connect by the fine isolated product of blanket of nitrogen energy with air
Touching, avoids product from being oxidized in an environment of high temperature with air effect, ensure that welding procedure.Pass through dedusting when laser welding
It covers and pump drainage processing is carried out to the dust generated in welding process, be further ensured that welding procedure and working environment.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
- Nitrogen protection device when 1. one kind is for the welding of laser galvanometer system characterized by comprisingFixed bottom plate, the fixed bottom plate are arranged in horizontal direction, and center is equipped with window up and down；Nitrogen protection mechanism, the nitrogen protection mechanism is embedded in the window interior, and the nitrogen protection mechanism is equipped with upper First weld pass of lower perforation and the nitrogen jet channel that nitrogen is erupted to welding position；Dedusting mechanism, it is described to be arranged for cover, and mask corresponds to the area of the nitrogen protection mechanism on the fixed bottom plate top Domain, the dedusting mechanism top are equipped with the second weld pass for vertically corresponding to the weld pass.
- 2. nitrogen protection device when a kind of welding for laser galvanometer system according to claim 1, it is characterised in that: institute State nitrogen protection mechanism by fold up and down fall made of the first nitrogen protection block and the second nitrogen protection block constitute, the nitrogen jet In the middle part of channel being set to up and down the second nitrogen protection block, first protection block corresponds to the injection channel region Equipped with the convex mouth extended to the lower part, first weld pass is located at the center of the figure mouth；The nitrogen jet channel it is interior Side wall and convex mouth lateral wall interval are arranged, and the injection channel is arranged in a ring；The first nitrogen protection block top Portion is equipped with nitrogen input interface, and the contact surface of the first nitrogen protection block and the second nitrogen protection block is respectively equipped with recessed Slot, the groove constitutes runner, and is connected to the nitrogen input interface and the jet channel.
- 3. nitrogen protection device when a kind of welding for laser galvanometer system according to claim 2, it is characterised in that: institute State the first nitrogen protection block be additionally provided with it is multiple up and down and the spray orifice of the corresponding runner.
- 4. nitrogen protection device when a kind of welding for laser galvanometer system according to claim 3, it is characterised in that: institute Small big back taper setting under convex mouth is in is stated, and the cricoid nitrogen jet channel corresponds to the bottom of the convex mouth profile Shape is collapsed in axis direction；Described nitrogen jet the bottom of the channel opening area is less than upper opening area.
- 5. nitrogen protection device when a kind of welding for laser galvanometer system according to claim 1, it is characterised in that: institute The dedusting mechanism lateral wall stated is equipped with jack, and the jack is equipped with to the protective case extended outside the nitrogen protection mechanism；Institute State the gas vent that dedusting mechanism lateral wall is additionally provided with multiple perforations.
- 6. nitrogen protection device when a kind of welding for laser galvanometer system according to claim 1, it is characterised in that: also Including circulator, the circulator includes the body being set side by side with the dedusting mechanism, is equipped with compression in the body The body of cavity, and be movably connected in the compression square-cavity and compression square-cavity is divided into left compression square-cavity and right compression square-cavity (3) piston, the piston are equipped with the driving device for driving the piston to move back and forth in the compression square-cavity；Institute Driving device is stated including setting is in the middle part of the piston and telescopic end is fixed on the control gas on right compression square-cavity (3) side wall Cylinder, and it is arranged on the body and protrudes into the compression square-cavity guide rod that guiding role is played to the piston motion, The guide rod is convenient for supplementing air to the compression square-cavity to be hollow；The left side of the piston is equipped with groove, the groove The interior heating wire being equipped with for heating air；Filter chamber is additionally provided in the body, the filter chamber interpolation is equipped with for containing The pull case apparatus of filter core is put, the through-hole for being connected to left compression square-cavity and filter chamber, the filter chamber are equipped in the body The inherent through hole is equipped with atomizer (3), and the body is equipped with the cabinet for holding cleaning mucus, and is used for Cleaning mucus is sent from the cabinet to the delivery pipe of the atomizer (3)；The body is equipped with for being connected to the mistake It is equipped with first communicating pipe empty for controlling the mucus containing cleaning first communicating pipe of filter chamber and the right compression square-cavity (3) Gas flows to the first check valve of the right compression square-cavity (3) from the filter chamber；The body is equipped with for being connected to the right side It is equipped with second communicating pipe viscous containing cleaning for controlling second communicating pipe of compression square-cavity (3) and the left compression square-cavity Liquid air gas flows to the second one-way valve of the left compression square-cavity from the right compression square-cavity (3).
- 7. nitrogen protection device when a kind of welding for laser galvanometer system according to claim 6, it is characterised in that: institute Stating pull case apparatus includes the pull cabinet that bottom is equipped with venthole, is rotatably connected to along its length in the pull-out box body Drive screw, the drive screw are divided into opposite the first thread segment and the second spiral shell of hand of spiral by the protrusion for being disposed therein portion Line section is respectively equipped with the first fixture block (3) being threadedly coupled with first thread segment in the pull-out box body and with described second The second fixture block that thread segment is threadedly coupled.
- 8. nitrogen protection device when a kind of welding for laser galvanometer system according to claim 7, it is characterised in that: institute The bottom for stating pull cabinet is provided along its length guide protrusions A, and the bottom of the filter chamber is equipped with and the guide protrusions A Mutually matched guide chute A；The bottom of first fixture block (3) and second fixture block slides along direction and is equipped with guiding The bottom of raised B, the pull cabinet are equipped with and the mutually matched guide chute B (3) of the guide protrusions B；The compression is held It is equipped with piston limit plate on the intracavitary side wall close to its left and right ends, the guide rod grafting is mounted on the piston limit plate On.
- 9. the method for nitrogen protection, special when a kind of laser galvanometer system welding applied to any one of claim 1-5 Sign is to include the following steps:The fixed plate is fixed below laser head by the first step, and makes first weld pass, second welding Channel is coaxially set with the luminous beam of the laser head institute；Second step, the tracheae that one end is connected with to nitrogen feedway run through through the protective case of the dedusting mechanism into the dedusting It is in-house, and be connected to the nitrogen input interface；Third step makes the convex mouth close to welding position, and opens nitrogen feedway, makes nitrogen through nitrogen jet channel, spray Hole is to external eruption；4th step, starting laser head, complete welding movement.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421254A (en) * | 2019-08-29 | 2019-11-08 | 深圳市大德激光技术有限公司 | It is a kind of for laser welding when nitrogen protection and dust-extraction unit |
| CN112247409A (en) * | 2020-09-28 | 2021-01-22 | 上海市安装工程集团有限公司 | Automatic welding device for clean room |
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