CN111558774A - Relay welding device and welding method - Google Patents
Relay welding device and welding method Download PDFInfo
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- CN111558774A CN111558774A CN202010695972.2A CN202010695972A CN111558774A CN 111558774 A CN111558774 A CN 111558774A CN 202010695972 A CN202010695972 A CN 202010695972A CN 111558774 A CN111558774 A CN 111558774A
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- groove
- turntable
- pole piece
- magnetic pole
- relay
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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Abstract
The invention discloses a relay welding device and a welding method, wherein the relay welding device comprises a bottom cover; the shell and the bottom cover form a sealed cavity, and a quartz window is arranged on the shell; the air exchange pipe is positioned on the shell and communicated with the sealed chamber; the rotary table is positioned in the sealed cavity, a plurality of grooves are formed in the rotary table, and the grooves are used for accommodating the ceramic components and the magnetic pole pieces in the relay; the laser device can transmit laser light emitted by the laser device through the quartz window and weld the ceramic component and the magnetic pole piece positioned in the groove; the rotating shaft is arranged in the through hole and connected with the rotary table, the rotary shaft is used for driving the rotary table to rotate, and the rotary table and/or the laser device can move relative to the bottom cover, so that the laser device can weld the ceramic components and the magnetic pole pieces on the grooves one by one. According to the relay welding device and the relay welding method, an exhaust pipe is not required to be arranged on the ceramic assembly, the cost of filling insulating gas into the ceramic assembly is reduced, and the relay welding device and the relay welding method have a good effect.
Description
Technical Field
The invention relates to the technical field of relay manufacturing, in particular to a relay welding device and a welding method.
Background
When the relay is disconnected in a loading state, electric arcs can be generated, and in order to prolong the service life of the relay, arc extinguishing gas (such as hydrogen) is filled in a cavity where a relay contact bridge is in contact with a binding post, so that the insulation property of a medium in the cavity is improved. Also, the ceramic components and pole pieces of the relay can form the chambers described above.
In the prior art, the steps of inflating and sealing the chamber are as follows: firstly, brazing an exhaust pipe on a magnetic pole piece in a vacuum brazing furnace; then, laser welding the ceramic assembly and the magnetic pole piece through a laser welding machine so as to enable the ceramic assembly and the magnetic pole piece to form a sealed chamber; and finally, sealing and exhausting, specifically, vacuumizing the cavity through the exhaust pipe, then filling hydrogen through the exhaust pipe to reach certain pressure, and then cutting the exhaust pipe through an extrusion method to further achieve the sealing effect.
Therefore, in the prior art, an exhaust pipe needs to be arranged, and the exhaust pipe and the magnetic pole piece are brazed together at high temperature, so that the mode of inflating and sealing the cavity is high in cost, and an optimized space exists.
Disclosure of Invention
The invention aims to provide a relay welding device and a welding method, which do not need to arrange an exhaust pipe on a ceramic component, reduce the cost of filling insulating gas into the ceramic component and have better effect.
As the conception, the technical scheme adopted by the invention is as follows:
a relay welding apparatus comprising:
a bottom cover;
the shell is connected with the bottom cover, a sealed cavity is formed by the shell and the bottom cover, and a quartz window is arranged on the shell;
a ventilation tube located on the housing and in communication with the sealed chamber;
the rotary disc is positioned in the sealed cavity, a plurality of grooves are formed in the rotary disc, and the grooves are used for containing the ceramic components and the magnetic pole pieces in the relay;
the laser device can transmit laser light through the quartz window and weld the ceramic component and the magnetic pole piece positioned in the groove;
the bottom cover is provided with a through hole, the rotating shaft is arranged in the through hole and connected with the rotating disc, and the rotating shaft is used for driving the rotating disc to rotate;
the turntable and/or the laser device can move relative to the bottom cover so that the laser device can weld the ceramic components and the magnetic pole pieces on the grooves one by one.
Optionally, the ventilation tube includes an inflation tube and an exhaust tube, and the inflation tube and the exhaust tube are respectively communicated with the sealed chamber.
Optionally, a plurality of the grooves are arranged along the circumferential direction of the rotating disc.
Optionally, laser device is equipped with a plurality ofly, be equipped with a plurality ofly on the casing quartz window, it is a plurality of quartz window and a plurality of laser device one-to-one, it is a plurality of the recess is followed carousel circumference is arranged and is constituteed a set of groove array, the multiunit groove array is followed the radial of carousel is arranged, every group groove array corresponds one quartz window, the laser that laser device produced can see through its correspondence quartz window to first recess ceramic assembly with the magnetic pole piece welds, first recess is quartz window corresponds arbitrary recess in the groove array.
Optionally, a magnetic part is arranged in the groove, or the turntable is made of a magnetic material, and the magnetic pole piece is fixed in the groove in an adsorption manner.
Optionally, the magnetic pole piece further comprises a plurality of fixing pieces, the fixing pieces correspond to the grooves one to one, one ends of the fixing pieces are fixed on the turntable, and the other ends of the fixing pieces are in contact with the ceramic assemblies located on the corresponding grooves and used for pressing and fixing the ceramic assemblies and the magnetic pole pieces.
A relay welding method is applied to the relay welding device and comprises the following steps:
s1, successively placing the magnetic pole piece and the ceramic component in the relay in the groove on the turntable, and placing the turntable in a sealed cavity formed by a bottom cover and a shell;
s2, sucking the gas in the sealed cavity through a suction pipe in a suction and exchange pipe, and stopping sucking when the sealed cavity reaches a first preset vacuum degree;
s3, filling insulating gas into the sealed cavity through an inflation tube in the ventilation tube, and stopping inflation when the pressure in the sealed cavity reaches a preset pressure;
s4, laser emitted by a laser device penetrates through a quartz window on the shell, and the ceramic component and the magnetic pole piece positioned on one groove are welded;
s5, adjusting the turntable and/or the laser device to move, so that the quartz window and the laser device correspond to the other groove;
s6, laser emitted by a laser device penetrates through the quartz window and welds the ceramic component and the magnetic pole piece on the other groove;
and S7, repeating the steps S5-S6 until the ceramic assembly and the magnetic pole piece on the turntable are welded.
Optionally, after step S7, the relay welding method further includes:
s8, sucking the insulating gas in the sealed cavity through the suction pipe, and stopping sucking when the sealed cavity reaches a second preset vacuum degree;
and S9, opening the inflation tube to enable the sealed chamber to be communicated with the atmosphere.
Optionally, the relay welding device includes a plurality of laser devices, the housing is provided with a plurality of quartz windows, the quartz windows are in one-to-one correspondence with the plurality of laser devices, the plurality of grooves are arranged in the circumferential direction of the turntable to form a set of groove arrays, the plurality of groove arrays are arranged in the radial direction of the turntable, each set of groove arrays corresponds to one quartz window, and step S5 includes:
s51, adjusting the rotation of the turntable to enable the quartz windows to respectively correspond to the grooves in the groove arrays;
s52, welding the ceramic components and the magnetic pole pieces on the grooves in the groove arrays in multiple groups simultaneously through a plurality of laser devices.
The beneficial effects of the invention at least comprise:
according to the relay welding device provided by the invention, the combined ceramic assembly and the magnetic pole piece are placed in the sealed cavity, the laser device is positioned outside the sealed cavity, before the ceramic assembly and the magnetic pole piece are welded by the laser device, the sealed cavity can be filled with the insulating gas, so that the insulating gas is filled in the ceramic assembly, the insulating gas can be positioned in the ceramic assembly in the welding process and after the welding, an exhaust pipe is not required to be arranged on the ceramic assembly, the ceramic assembly is not required to be processed in a vacuum brazing furnace, the cost of filling the insulating gas in the ceramic assembly is reduced, and the effect is better.
And, be equipped with a plurality of recesses on the carousel for relay welding set can weld a plurality of ceramic subassemblies and magnetic pole piece in proper order, has improved the efficiency of making the relay.
Drawings
Fig. 1 is a schematic structural diagram of a relay welding device provided in an embodiment of the invention;
FIG. 2 is an exploded view of a welded relay structure according to an embodiment of the present invention;
FIG. 3 is a top view of a turntable provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a turntable provided in an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of the invention at position A shown in FIG. 4;
FIG. 6 is a top view of a relay welding apparatus provided in accordance with an embodiment of the present invention;
FIG. 7 is a cross-sectional view B-B of the present invention as shown in FIG. 6;
fig. 8 is a flowchart of a relay welding method according to an embodiment of the present invention.
In the figure:
1. a bottom cover; 11. a through hole; 2. a housing; 21. a quartz window; 3. a ventilation tube; 31. an inflation tube; 32. an air exhaust pipe; 4. a turntable; 41. a groove; 411. a cylindrical groove; 5. a rotating shaft; 100. sealing the chamber; 200. a ceramic component; 300. a magnetic pole piece; 400. an array of grooves.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides a relay welding device, need not to set up the blast pipe on ceramic subassembly, and the cost can be lower.
As shown in fig. 1 to 7, the relay welding apparatus includes a bottom cover 1, a housing 2, a gas exchange tube 3, a turntable 4, and a laser device.
Wherein, the bottom cover 1 and the housing 2 are connected to each other and form a sealed chamber 100, and a quartz window 21 is provided on the housing 2. The quartz window 21 is formed of a quartz material, and the quartz window 21 is fixed to the housing 2. The ventilation pipe 3 is provided on the housing 2 and communicates with the sealed chamber 100, and the ventilation pipe 3 is used to supply gas into the sealed chamber 100 or suck gas from the sealed chamber 100. The rotating disc 4 is located in the sealed chamber 100, and a plurality of grooves 41 are formed in the rotating disc 4, each groove 41 is used for accommodating the combined ceramic component 200 and the magnetic pole piece 300 in the relay, and the combined ceramic component 200 and the magnetic pole piece 300 mean that the ceramic component 200 and the magnetic pole piece 300 are in contact with each other but are not welded together. The laser device is capable of emitting laser light, and the laser light emitted by the laser device is capable of transmitting through the quartz window 21 and welding the ceramic assembly 200 and the pole piece 300 located in the recess 41.
Wherein the turntable 4 and/or the laser device can be moved relative to the bottom cover 1 so that the laser device can weld the combined ceramic assembly 200 and pole piece 300 located on the plurality of recesses 41 one by one.
The relay welding device provided by the embodiment, the combined ceramic assembly 200 and the magnetic pole piece 300 are placed in the sealed cavity 100, the laser device is located outside the sealed cavity 100, before the laser device welds the ceramic assembly 200 and the magnetic pole piece 300, insulating gas can be filled in the sealed cavity 100, so that the ceramic assembly 200 is filled with the insulating gas, the insulating gas can be located in the ceramic assembly 200 in the welding process and after welding, an exhaust pipe is not required to be arranged on the ceramic assembly 200, the ceramic assembly 200 is not required to be processed in a vacuum brazing furnace, the cost of filling the insulating gas in the ceramic assembly 200 is reduced, and the effect is better.
And, be equipped with a plurality of recesses on carousel 4 for relay welding set can weld a plurality of ceramic assemblies 200 and magnetic pole piece 300 in proper order, has improved the efficiency of manufacturing the relay.
Optionally, when the turntable 4 is movable, as shown in fig. 2, the relay welding device may further include a rotating shaft 5, the bottom cover 1 has a through hole 11, the rotating shaft 5 is disposed in the through hole 11 and connected to the turntable 4, and the rotating shaft 5 is configured to drive the turntable 4 to rotate. In order to improve the sealing performance of the sealing chamber 100, a sealing ring may be disposed on a sidewall of the through hole 11 to seal a gap between the rotation shaft 5 and the bottom cover 1. When the laser device is able to move, the laser device is slidably disposed on the housing 2 to achieve welding of the combined ceramic assembly 200 and pole piece 300 on the plurality of grooves one by one.
The ventilation tube 3 may be a single tube, or, alternatively, as shown in fig. 2, the ventilation tube 3 may include an inflation tube 31 and an evacuation tube 32, and the inflation tube 31 and the evacuation tube 32 are respectively communicated with the hermetic chamber 100. Further, an air-filling pipe 31 is located at one side of the housing 2, and an air-extracting pipe 32 is located at the other side of the housing 2. Moreover, switches are respectively arranged on the inflation tube 31 and the exhaust tube 32, when the switches are turned on, the inflation tube 31 and the exhaust tube 32 are in a closed state, and when the switches are turned off, the inflation tube 31 and the exhaust tube 32 are in an open state.
Further, the plurality of grooves 41 may be arranged on the turntable 4 in a circumferential manner along the turntable 4 or in an array on the turntable 4. When the plurality of grooves 41 are arranged circumferentially along the turntable 4, the groove facing the quartz window 21 can be adjusted by rotating the turntable 4.
Further, as shown in fig. 2 and 3, in the case that the plurality of grooves 41 are arranged along the circumferential direction of the turntable 4, the number of the laser devices may be plural, and the housing 2 is provided with a plurality of quartz windows 21, and the plurality of quartz windows 21 correspond to the plurality of laser devices one to one. The plurality of grooves 41 are arranged along the circumferential direction of the turntable 4 to form a group of groove arrays 400, and the plurality of groups of groove arrays 400 are arranged along the radial direction of the turntable 4. Each group of groove arrays 400 corresponds to one quartz window 21, and laser generated by the laser device can penetrate through the corresponding quartz window 21 to weld the ceramic assembly 200 and the magnetic pole piece 300 in a first groove, which is any one groove 41 in the groove array 400 corresponding to the quartz window 21. Illustratively, in the present embodiment, the relay welding device includes three laser devices, three quartz windows 21 are provided on the housing 2, and the plurality of grooves 41 form three sets of groove arrays 400.
In order to ensure the distance between two adjacent grooves 41, the groove arrays 400 closer to the center of the turntable 4 include fewer grooves 41, and at this time, the grooves 41 in different groove arrays 400 may be arranged sequentially along the radial direction of the turntable 4, or may be arranged in a staggered manner along the radial direction of the turntable 4.
In the rotating process of the turntable 4, when each quartz window 21 can be just opposite to one groove 41 and the grooves 41 are respectively provided with the combined ceramic components 200 and the magnetic pole pieces 300, a plurality of laser devices can be started simultaneously, so that the plurality of laser devices can respectively weld the ceramic components 200 and the magnetic pole pieces 300 on the plurality of grooves 41 simultaneously, and the welding efficiency is improved. When a portion of the quartz window 21 can correspond to the recess 41 and another portion of the quartz window 21 does not face the recess 41, a portion of the laser apparatus can be driven to weld the ceramic assembly 200 and the pole piece 300 on the recess 41 facing the portion of the quartz window 21.
To ensure stability of the welding process, the ceramic assembly 200 and the pole piece 300 need to be secured in the recess 41. The present embodiment provides the following several fixing means.
In one fixing mode, a magnetic member may be disposed in the groove 41, and the magnetic member may be capable of fixing the pole piece 300 positioned on the groove 41 in an attracting manner, so as to prevent the pole piece 300 and the ceramic assembly 200 from moving during welding.
In another fixing mode, the material of the turntable 4 may also be a magnetic material to be able to attract and fix the magnetic pole piece 300 in the groove 41.
In still another fixing manner, the relay welding device may further include a plurality of fixing members, the plurality of fixing members correspond to the plurality of grooves 41 one to one, one end of each fixing member is fixed on the turntable 4, and the other end of each fixing member contacts the ceramic assembly 200 located on the corresponding groove 41 and is used for pressing and fixing the ceramic assembly 200 and the magnetic pole piece 300, so as to reduce the probability that the ceramic assembly 200 and the magnetic pole piece 300 move.
It should be noted that the three fixing methods may exist simultaneously, or the three fixing methods may be combined at will. Illustratively, both the magnetic member and the fixing member may be disposed in the groove 41 and on the turntable 4.
Alternatively, as shown in fig. 5, the groove bottom of the groove 41 may further have a column groove 411, a movable contact fixed with the ceramic component 200 in the relay is also located on the groove 41, and the column groove 411 is used for accommodating the movable contact to assist in fixing the ceramic component 200 and the magnetic pole piece 300.
The present embodiment also provides a relay welding method, which may be applied to the relay welding apparatus described above, as shown in fig. 8, and the relay welding method includes:
s1, the pole piece 300 and the ceramic component 200 of the relay are placed in the groove 41 of the turntable 4, and the turntable 4 is placed in the sealed chamber 100 formed by the bottom cover 1 and the housing 2.
In step S1, the bottom cover 1 and the housing 2 may be separated first, then the turntable 4 on which the ceramic assembly 200 and the pole piece 300 are placed is placed on the bottom cover 1, and then the bottom cover 1 and the housing 2 are hermetically connected to ensure the sealing performance of the sealed chamber 100.
S2, the gas in the sealed chamber 100 is pumped through the pumping tube 32, and the pumping is stopped when the sealed chamber 100 reaches a first predetermined vacuum degree.
Alternatively, a vacuum pump may be connected to the pumping line 32, and then a switch on the pumping line 32 is controlled to be opened, and then the vacuum pump is activated to pump the gas in the sealed chamber 100. And, a vacuum degree detection device may be disposed in the sealed chamber 100, and is capable of detecting a real-time vacuum degree in the sealed chamber 100 in real time, and when the real-time vacuum degree is equal to a first preset vacuum degree, the switch on the ventilation tube 3 is closed to stop continuing to pump air. The first preset vacuum degree may be determined according to actual requirements, which is not limited in this embodiment.
S3, filling the insulating gas into the sealed chamber 100 through the gas filling tube 31, and stopping the gas filling when the pressure in the sealed chamber 100 reaches a preset pressure.
Alternatively, the sealed chamber 100 may be filled with an insulating gas through the gas filling tube 31 in the gas exchanging tube 3, so that the inside of the sealed chamber 100 changes from vacuum to being filled with the insulating gas, and at this time, the cavity of the ceramic assembly 200 is also filled with the insulating gas. For example, a pressure gauge may be disposed in the sealed chamber 100, and the pressure gauge can detect the pressure in the sealed chamber 100 in real time, and when the pressure in the sealed chamber 100 reaches a preset pressure, a switch on the inflation tube 31 is turned off to stop the continuous inflation of the sealed chamber 100. The predetermined pressure may be determined based on the pressure requirements within the cavity of the ceramic assembly 200. Alternatively, the insulating gas may be hydrogen or the like.
S4, the laser light emitted by the laser device penetrates the quartz window 21 of the housing 2, and the ceramic member 200 and the pole piece 300 located on one of the recesses 41 are welded.
S5, the adjustment dial 4 and/or the laser device are moved so that the quartz window 21 and the laser device correspond to another groove 41.
S6, the laser light emitted by the laser device penetrates the quartz window 21, and welds the ceramic assembly 200 and the pole piece 300 positioned on the other groove 41.
And S7, repeating the steps S5-S6 until the ceramic assembly 200 and the magnetic pole piece 300 on the turntable 4 are welded.
According to the relay welding method provided by the embodiment, before the ceramic assembly 200 and the magnetic pole piece 300 are welded by the laser device, the sealed cavity 100 can be filled with the insulating gas, so that the ceramic assembly 200 is filled with the insulating gas, the insulating gas can be located in the ceramic assembly 200 in the welding process and after welding, an exhaust pipe is not required to be arranged on the ceramic assembly 200, the ceramic assembly 200 is not required to be processed in a vacuum brazing furnace, the cost of filling the insulating gas into the ceramic assembly 200 is reduced, and the effect is good.
Optionally, after step S7, the relay welding method further includes:
s8, the insulating gas in the sealed chamber 100 is pumped through the pumping tube 32, and the pumping is stopped when the sealed chamber 100 reaches a second predetermined vacuum degree.
The insulating gas in the sealed chamber can be recovered through the step S8 so as to be reused, and the cost is saved.
S9, opening the gas tube 31 to connect the sealed chamber 100 with the atmosphere.
Optionally, when the relay welding device includes a plurality of laser devices, the housing 2 is provided with a plurality of quartz windows 21, the plurality of quartz windows 21 correspond to the plurality of laser devices one to one, the plurality of grooves 41 are circumferentially arranged along the turntable 4 to form a set of groove arrays 400, the plurality of sets of groove arrays 400 are radially arranged along the turntable 4, and each set of groove arrays 400 corresponds to one quartz window 21, step S5 may include:
s51, adjusting the rotation of the turntable 4 to make the quartz windows 21 respectively correspond to the grooves 41 in the groove arrays 400;
s52, the ceramic assembly 200 and the pole pieces 300 positioned on the respective recesses 41 of the plurality of quartz windows 21 are simultaneously welded by a plurality of laser devices.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A relay welding device, comprising:
a bottom cover (1);
the shell (2) is connected with the bottom cover (1), the shell (2) and the bottom cover (1) form a sealed chamber (100), and a quartz window (21) is arranged on the shell (2);
a ventilation tube (3) located on the housing (2) and communicating with the sealed chamber (100);
the rotary disc (4) is positioned in the sealed chamber (100), a plurality of grooves (41) are formed in the rotary disc (4), and the grooves (41) are used for accommodating the ceramic component (200) and the magnetic pole pieces (300) in the relay;
a laser device, wherein laser emitted by the laser device can penetrate through the quartz window (21) and weld the ceramic component (200) and the magnetic pole piece (300) in the groove (41);
the rotating shaft (5), a through hole (11) is formed in the bottom cover (1), the rotating shaft (5) is arranged in the through hole (11) and connected with the rotating disc (4), and the rotating shaft (5) is used for driving the rotating disc (4) to rotate;
the turntable (4) and/or the laser device can be moved relative to the bottom cover (1) so that the laser device can weld the ceramic assembly (200) and the pole piece (300) one by one on the plurality of grooves (41).
2. Relay welding device according to claim 1, wherein the gas exchange tube (3) comprises a gas filling tube (31) and a gas suction tube (32), the gas filling tube (31) and the gas suction tube (32) being in communication with the sealed chamber (100), respectively.
3. Relay welding device according to claim 1 or 2, characterized in that a plurality of said recesses (41) are arranged circumferentially along the turntable (4).
4. The relay welding apparatus according to claim 3, wherein a plurality of the laser devices are provided, the shell (2) is provided with a plurality of quartz windows (21), the quartz windows (21) correspond to the laser devices one by one, the grooves (41) are circumferentially arranged along the turntable (4) to form a group of groove arrays (400), a plurality of groups of groove arrays (400) are radially arranged along the turntable (4), each group of groove arrays (400) corresponds to one quartz window (21), the laser generated by the laser device can weld the ceramic component (200) and the magnetic pole piece (300) in the first groove (41) through the corresponding quartz window (21), the first groove (41) is any groove (41) in the groove array (400) corresponding to the quartz window (21).
5. The relay welding device according to claim 4, characterized in that a magnetic member is arranged in the groove (41), or the material of the rotary disk (4) is a magnetic material, and the magnetic pole piece (300) is fixed in the groove (41) in an absorption manner.
6. The relay welding device according to claim 4, further comprising a plurality of fixing members, wherein the plurality of fixing members correspond to the plurality of grooves (41) one by one, one end of each fixing member is fixed to the rotary plate (4), and the other end of each fixing member is in contact with the ceramic assembly (200) located in the corresponding groove (41) and is used for press-fixing the ceramic assembly (200) and the magnetic pole piece (300).
7. A relay welding method applied to the relay welding apparatus according to any one of claims 1 to 6, comprising the steps of:
s1, successively placing the magnetic pole piece (300) and the ceramic component (200) in the relay in the groove (41) on the turntable (4), and placing the turntable (4) in a sealed chamber (100) formed by the bottom cover (1) and the shell (2);
s2, sucking the gas in the sealed chamber (100) through the air suction pipe (32) in the air exchange pipe (3), and stopping air suction when the sealed chamber (100) reaches a first preset vacuum degree;
s3, filling insulating gas into the sealed chamber (100) through an inflation tube (31) in the ventilation tube (3), and stopping inflation when the pressure in the sealed chamber (100) reaches a preset pressure;
s4, the laser emitted by the laser device penetrates through the quartz window (21) on the shell (2), and the ceramic component (200) and the magnetic pole piece (300) on one groove (41) are welded;
s5, adjusting the turntable (4) and/or the laser device to move, so that the quartz window (21) and the laser device correspond to the other groove (41);
s6, the laser emitted by the laser device penetrates the quartz window (21) and welds the ceramic component (200) and the magnetic pole piece (300) on the other groove (41);
s7, repeating the steps S5-S6 until the ceramic component (200) and the magnetic pole piece (300) on the turntable (4) are welded.
8. The relay welding method according to claim 7, wherein after step S7, the relay welding method further comprises:
s8, sucking the insulating gas in the sealed chamber (100) through the suction pipe (32), and stopping sucking when the sealed chamber (100) reaches a second preset vacuum degree;
s9, opening the inflation tube (31) to enable the sealed chamber (100) to be communicated with the atmosphere.
9. The relay welding method according to claim 7, wherein the relay welding device comprises a plurality of laser devices, the housing (2) is provided with a plurality of quartz windows (21), the plurality of quartz windows (21) correspond to the plurality of laser devices one by one, the plurality of grooves (41) are circumferentially arranged along the turntable (4) to form a group of groove arrays (400), the plurality of groups of groove arrays (400) are arranged along a radial direction of the turntable (4), each group of groove arrays (400) corresponds to one quartz window (21), and step S5 includes:
s51, adjusting the turntable (4) to rotate, so that the quartz windows (21) respectively correspond to the grooves (41) in the groove arrays (400);
(S52) simultaneously welding the ceramic assembly (200) and the pole piece (300) on the grooves (41) in the plurality of sets of groove arrays (400) by a plurality of the laser devices.
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| CN202010695972.2A CN111558774A (en) | 2020-07-20 | 2020-07-20 | Relay welding device and welding method |
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| CN202010695972.2A CN111558774A (en) | 2020-07-20 | 2020-07-20 | Relay welding device and welding method |
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