CN108994445B - Vacuum laser sealing machine and control method thereof - Google Patents
Vacuum laser sealing machine and control method thereof Download PDFInfo
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- CN108994445B CN108994445B CN201810887549.5A CN201810887549A CN108994445B CN 108994445 B CN108994445 B CN 108994445B CN 201810887549 A CN201810887549 A CN 201810887549A CN 108994445 B CN108994445 B CN 108994445B
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- 238000007789 sealing Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 206
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000005530 etching Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
-
- 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
-
- 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
- B23K26/70—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a vacuum laser sealing machine and a control method thereof, wherein the vacuum laser sealing machine comprises: a vacuum chamber, wherein a motion platform is arranged in the vacuum chamber; the vacuum laser seal welding tool is arranged on the moving platform and can move along with the moving platform in the horizontal direction and the vertical direction; the workpiece mounting grooves are arranged on the vacuum laser sealing and welding tool, and the workpieces are arranged in the workpiece mounting grooves; the welding head is used for welding the workpiece; the shooting device is used for collecting diagonal positions of any two of the plurality of workpiece mounting grooves; and the controller is electrically connected with the shooting device, the welding head and the moving platform and is used for identifying the coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device so as to obtain the coordinates of each of the plurality of workpiece mounting grooves. And the coordinates of each of the plurality of workpiece mounting grooves are obtained through the controller, so that the automatic welding of the workpieces is realized.
Description
Technical Field
The invention relates to the technical field of sealing welding equipment, in particular to a vacuum laser sealing welding machine and a control method of the vacuum laser sealing welding machine.
Background
The quartz crystal resonator is one of the key elements matched with various communication electronic digital products, and along with the development of intelligent communication and various digital technologies, more and more intelligent electronic products of consumer life are brought to the great demands of quartz crystal resonators which are key elements matched with the quartz crystal resonator, the traditional quartz crystal resonator is packaged by parallel resistance welding or low-temperature glass welding, and the laser welding is carried out in a clean vacuum environment in order to ensure the activity of the micro crystal resonator due to the characteristics of low cost and high efficiency. The existing laser sealing welding machine and sealing welding mode aiming at single array arrangement of crystal resonators are two, one mode is that a base and a cover plate fixed in a special fixture are pressed by a pressing claw or a spring column, laser pre-welding is firstly carried out on two or half peripheral welding angles in nitrogen atmosphere, then positioning photographing is carried out on the edge of the cover plate of each workpiece in a vacuum chamber, X, Y position coordinates and deflection angles of the cover plate are determined, position compensation is correspondingly carried out after position information of the cover plate is obtained by a laser system, and then laser sealing welding of each workpiece is carried out. The other mode is to use a cover plate with the similar outline dimension to the base, limit the outline of the jig, dispense with photographing and positioning by a camera, and have high sealing and welding efficiency, but the dislocation deviation between the base and the cover plate in the sealing and welding mode is large, so that the product application is limited, and the sealing and welding mode is difficult to apply to a circuit board with higher requirement.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, one aspect of the present invention is to provide a vacuum laser sealing machine.
Another aspect of the present invention is to provide a control method of a vacuum laser sealing machine.
In view of this, according to one aspect of the present invention, there is provided a vacuum laser sealing machine comprising: a vacuum chamber, wherein a motion platform is arranged in the vacuum chamber; the vacuum laser seal welding tool is arranged on the moving platform and can move along with the moving platform in the horizontal direction and the vertical direction; the workpiece mounting grooves are arranged on the vacuum laser sealing and welding tool, and the workpieces are arranged in the workpiece mounting grooves; the welding head is used for welding the workpiece; the shooting device is used for collecting diagonal positions of any two of the plurality of workpiece mounting grooves; and the controller is electrically connected with the shooting device, the welding head and the moving platform and is used for identifying the coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device so as to obtain the coordinates of each of the plurality of workpiece mounting grooves.
The invention provides a vacuum laser seal welding machine which comprises a vacuum chamber, a moving platform and a vacuum laser seal welding tool, wherein the moving platform is arranged in the vacuum chamber, the vacuum laser seal welding tool is arranged on the moving platform and can move along with the moving platform in the horizontal direction and the vertical direction, a plurality of workpiece mounting grooves are formed in the vacuum laser seal welding tool, workpieces are mounted in the workpiece mounting grooves, the vacuum laser seal welding machine further comprises a welding head, a shooting device and a controller, the welding head is used for welding the workpieces, the shooting device is used for collecting diagonal positions of any two of the workpiece mounting grooves, the controller is electrically connected with the shooting device, the welding head and the moving platform, and the controller is used for identifying coordinates of the diagonal positions of any two of the workpiece mounting grooves collected by the shooting device, so that the coordinates of each of the workpiece mounting grooves can be automatically calculated through a program, and the vacuum laser seal welding machine can seal all the workpieces placed in the workpiece mounting grooves at one time by utilizing the calculated coordinate information, thereby realizing efficient and high-precision vacuum seal welding in batches. The method has the advantages that the step that the workpiece is required to be subjected to laser pre-welding under the conventional air pressure condition in the related technology is avoided, in the process that the workpiece is welded by the welding head, shooting and positioning are not required to be carried out on each workpiece placed in a plurality of workpiece mounting grooves, and the position deviation of each workpiece is not required to be compensated when the welding head is used for welding, so that the precise alignment of the shapes of the base and the surface cover of the workpiece in the vacuum laser seal welding of batch of workpieces is realized, the shape precision of the workpiece after the vacuum laser seal welding is improved, the seal welding reliability is high, the product shape precision is high, the seal welding production efficiency is high, and the cost is low. Furthermore, the vacuum laser sealing machine provided by the invention has the advantages that the structure is simple, the degree of automation is high, the shooting device is utilized to identify and position the diagonal positions of any two of the plurality of workpiece mounting grooves, the positioning parameters are sent to the controller, the coordinates of each of the plurality of workpiece mounting grooves are obtained through the controller in combination with the pre-written program codes, the shooting and positioning of each workpiece placed in the plurality of workpiece mounting grooves are not needed, the automatic welding of the workpieces is realized, and the production efficiency is greatly improved.
In addition, the vacuum laser sealing welding machine in the technical scheme provided by the invention can also have the following additional technical characteristics:
in the above technical solution, preferably, the plurality of workpiece mounting grooves are distributed in an array on the vacuum laser sealing tool.
In the technical scheme, the plurality of workpiece mounting grooves are distributed in an array on the vacuum laser sealing and welding tool, so that the plurality of workpiece mounting grooves are distributed neatly, a welding head is more convenient to weld workpieces placed in the plurality of workpiece mounting grooves, the moving path of the welding head in the welding process can be simplified, and the welding efficiency is improved.
In any of the above technical solutions, preferably, the plurality of workpiece mounting grooves are rectangular in distribution on the vacuum laser sealing tool; the shooting device is used for collecting positions of two workpiece mounting grooves which are positioned on opposite corners of the rectangle in the plurality of workpiece mounting grooves.
In the technical scheme, the plurality of workpiece mounting grooves are preferably distributed in a rectangular shape on the vacuum laser seal welding tool, the rectangular distribution ensures that the plurality of workpiece mounting grooves are orderly arranged, a welding head is more convenient for welding workpieces placed in the plurality of workpiece mounting grooves, the moving path of the welding head in the welding process can be simplified, and the welding efficiency is improved; and set up the position that shooting device is used for gathering two work piece mounting grooves that lie in the diagonal angle of rectangle in a plurality of work piece mounting grooves, the distance between two work piece mounting grooves that lie in the rectangle diagonal angle is great, gathers the coordinate of these two positions, can reduce the coordinate error of two adjacent work piece mounting grooves, improves the precision of coordinate to improve the welding precision of product, realize high efficiency, high accuracy vacuum laser seal welding.
In any of the above technical solutions, preferably, the vacuum laser seal welding tool includes: the guide layer, the positioning layer, the heightening layer and the bottom plate layer are connected through spot welding or thermal bonding; the guide part is arranged on the guide layer, is a bevel angle arranged at the notch of the workpiece mounting groove, and extends from the side wall of the workpiece mounting groove towards the outside of the workpiece mounting groove; the size of the positioning opening is matched with the size of the workpiece, the workpiece is positioned in the positioning opening, and the difference between the size of the positioning opening and the size of the workpiece is less than or equal to 0.03mm; the thickness of the positioning layer is smaller than or equal to 0.2mm.
In this technical scheme, vacuum laser seal welds frock and includes direction layer, locating layer, heightening layer and bottom plate layer, preferably, through spot welding or thermal laminating connection between direction layer, locating layer, heightening layer and the bottom plate layer for the connection between direction layer, locating layer, heightening layer and the bottom plate layer is simple, firm. The guide part is arranged on the guide layer, the guide part is preferably an oblique angle arranged at the notch of the workpiece mounting groove, the oblique angle extends from the side wall of the workpiece mounting groove towards the outer part of the workpiece mounting groove, the notch of the workpiece mounting groove is enlarged due to the arrangement of the guide part, so that the workpiece is easier to enter the workpiece mounting groove through the guide part, and the workpiece is convenient to mount. Further, the range of the inclination angle of the bevel angle provided at the notch of the workpiece mounting groove and the vertical direction is preferably 30 ° to 60 °, in which the machining of the guide portion is facilitated and the workpiece is easily mounted into the workpiece mounting groove through the guide portion. The positioning layer is provided with a positioning opening, the size of the positioning opening is matched with the size of a workpiece, the workpiece is positioned in the positioning opening, namely the positioning opening is a part of a workpiece mounting groove, the difference between the size of the positioning opening and the size of the workpiece is less than or equal to 0.03mm, and as the position of each workpiece in a plurality of workpiece mounting grooves of the vacuum laser seal welding tool is determined by the positioning opening precision, the difference between the size of the positioning opening and the size of the workpiece is less than or equal to 0.03mm, so that the mounting position of the workpiece is accurate, the welding precision of a product can be improved, preferably, the range of the thickness of the positioning layer is less than or equal to 0.2mm, and the thickness of the positioning layer is thinner, and the processing precision of the positioning opening can be improved; further, the bottom plate layer forms a bottom of the workpiece mounting groove, and supports the workpiece when the workpiece is mounted in the workpiece mounting groove.
In any of the above-described aspects, preferably, the positioning opening is formed on the positioning layer by an etching process or a wire cutting process.
In the technical scheme, the thickness of the positioning layer is thinner, so that the positioning opening can be formed on the positioning layer through an etching process or a linear cutting process, the processing precision of the etching process or the linear cutting process is high, the dimensional precision of the positioning opening is higher, the positioning opening is used for limiting the precision of the position of the workpiece placed in the workpiece mounting groove, and the precision of the position of the workpiece is improved.
In any of the above technical solutions, preferably, a plane including a horizontal direction is formed on the moving platform, the welding head and the photographing device are mounted on the plane perpendicular to the moving platform in a vertical state, and relative positions of the welding head and the photographing device are fixed.
In the technical scheme, the moving platform is used for bearing the vacuum laser seal welding tool and driving the vacuum laser seal welding tool to move in the horizontal direction and the vertical direction, a plane comprising the horizontal direction is formed on the moving platform, the welding head and the shooting device are vertically arranged on the plane vertical to the moving platform, the relative positions of the welding head and the shooting device are fixed, the welding head is used for completing the welding operation of a workpiece, and the shooting device is used for completing the recording of the position of the workpiece.
In any of the above solutions, preferably, the motion platform includes: the conveying rail can drive the vacuum laser seal welding tool to move in the horizontal direction; and the lifting platform can drive the vacuum laser sealing tool to move in the vertical direction.
In this technical scheme, the motion platform includes transfer rail and lift platform, and transfer rail can drive vacuum laser seal welding frock and remove in the horizontal direction, and lift platform can drive vacuum laser seal welding frock and remove in the vertical direction, and transfer rail and lift platform's cooperation jointly can make vacuum laser seal welding frock remove in horizontal direction and vertical direction, has increased vacuum laser seal welding frock's flexibility, is favorable to realizing automated welding.
The second aspect of the present invention provides a control method of a vacuum laser sealing welder, which is used for the vacuum laser sealing welder provided by any one of the above technical schemes, and includes: controlling the work piece to be mounted in the plurality of work piece mounting slots; the shooting device is controlled to collect diagonal positions of any two of the workpiece mounting grooves; identifying coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device according to the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device, and calculating the coordinates of each of the plurality of workpiece mounting grooves; and controlling the welding head to weld according to the preset direction according to the coordinates of each of the plurality of workpiece mounting grooves.
The control method of the vacuum laser sealing machine can be applied to welding between a workpiece base and a workpiece cover plate of the vacuum laser sealing machine, in the process of welding a workpiece by the vacuum laser sealing machine, the workpiece is firstly arranged in a plurality of workpiece mounting grooves, specifically, the workpiece comprises the workpiece cover plate and the workpiece base, the workpiece cover plate is arranged on the workpiece base and is jointly positioned in the workpiece mounting grooves, and further, the purpose of welding by the vacuum laser sealing machine is to enable the workpiece cover plate and the workpiece base to be formed into a whole; then the shooting device is controlled to collect diagonal positions of any two of the plurality of workpiece mounting grooves, diagonal position information of any two of the plurality of workpiece mounting grooves is sent to the controller, further, the controller recognizes coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves collected by the shooting device according to the diagonal positions of any two of the plurality of workpiece mounting grooves collected by the shooting device, and accordingly, the coordinates of each of the plurality of workpiece mounting grooves are automatically calculated through a program, the vacuum laser sealing machine utilizes the calculated coordinate information of each of the plurality of workpiece mounting grooves to control the welding head to weld according to a preset direction, and the vacuum laser sealing machine can seal all workpieces placed in the plurality of workpiece mounting grooves at one time, so that high-efficiency and high-precision vacuum laser sealing welding with batch performance is achieved. The method has the advantages that the step that the workpiece is required to be subjected to laser pre-welding under the conventional air pressure condition in the related technology is avoided, in the process that the workpiece is welded by the welding head, shooting and positioning are not required to be carried out on each workpiece placed in a plurality of workpiece mounting grooves, and the position deviation of each workpiece is not required to be compensated when the welding head is used for welding, so that the precise alignment of the shapes of the base and the surface cover of the workpiece in the vacuum laser seal welding of batch of workpieces is realized, the shape precision of the workpiece after the vacuum laser seal welding is improved, the seal welding reliability is high, the product shape precision is high, the seal welding production efficiency is high, and the cost is low. Furthermore, the vacuum laser sealing machine provided by the invention has the advantages that the structure is simple, the degree of automation is high, the shooting device is utilized to identify and position the diagonal positions of any two of the plurality of workpiece mounting grooves, the positioning parameters are sent to the controller, the coordinates of each of the plurality of workpiece mounting grooves are obtained through the controller in combination with the pre-written program codes, the shooting and positioning of each workpiece placed in the plurality of workpiece mounting grooves are not needed, the automatic welding of the workpieces is realized, and the production efficiency is greatly improved.
In any of the above technical solutions, preferably, the specific steps of controlling the workpiece to be mounted in the plurality of workpiece mounting grooves are: the control workpiece base is arranged in the plurality of workpiece mounting grooves; and controlling the workpiece cover plate to move and rotate to the workpiece base, and fixing the workpiece cover plate on the workpiece base.
In the technical scheme, the specific steps of controlling the workpiece to be installed in the plurality of workpiece installation grooves are as follows: firstly, controlling a workpiece base to be installed in a plurality of workpiece installation grooves, specifically, controlling a workpiece to comprise a workpiece cover plate and the workpiece base, then controlling the workpiece cover plate to move and rotate to the workpiece base, fixing the workpiece cover plate on the workpiece base, specifically, arranging a suction nozzle on a vacuum laser sealing machine, and enabling the suction nozzle to adsorb the workpiece cover plate to move and rotate on the vacuum laser sealing machine so as to place the workpiece cover plate on the workpiece base; at this time, the workpiece cover plate cover is arranged on the workpiece base and is jointly positioned in the workpiece mounting groove, and the workpiece cover plate and the workpiece base are welded into a whole by utilizing the vacuum laser sealing machine.
In any of the above technical solutions, preferably, the plurality of workpiece mounting grooves are rectangular in distribution on the vacuum laser sealing tool; the shooting device is used for recording positions of two workpiece mounting grooves which are positioned on opposite corners of the rectangle in the plurality of workpiece mounting grooves.
In the technical scheme, the plurality of workpiece mounting grooves are preferably distributed in a rectangular shape on the vacuum laser seal welding tool, the rectangular distribution ensures that the plurality of workpiece mounting grooves are orderly arranged, a welding head is more convenient for welding workpieces placed in the plurality of workpiece mounting grooves, the moving path of the welding head in the welding process can be simplified, and the welding efficiency is improved; and set up the position that shooting device is used for gathering two work piece mounting grooves that lie in the diagonal angle of rectangle in a plurality of work piece mounting grooves, the distance between two work piece mounting grooves that lie in the rectangle diagonal angle is great, gathers the coordinate of these two positions, can reduce the coordinate error of two adjacent work piece mounting grooves, improves the precision of coordinate to improve the welding precision of product, realize high efficiency, high accuracy vacuum laser seal welding.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 shows a schematic diagram of a vacuum laser seam welder in accordance with one embodiment of the present invention;
FIG. 2 shows a schematic structural diagram of a vacuum laser seal welding tool of a vacuum laser seal welding machine according to one embodiment of the invention;
FIG. 3 illustrates a partial enlarged view of one station of a vacuum laser seal welding tool of a vacuum laser seal welding machine in accordance with one embodiment of the invention;
FIG. 4 illustrates a flow chart of a method of controlling a vacuum laser seam welder in accordance with one embodiment of the present invention;
Fig. 5 shows a further flowchart of a control method of a vacuum laser sealing machine in accordance with an embodiment of the present invention.
The correspondence between the reference numerals and the component names in fig. 1 to 3 is:
10 vacuum chamber, 20 motion platform, 202 conveying track, 204 lift platform, 30 vacuum laser seal welding frock, 302 work piece mounting groove, 304 guiding layer, 306 locating layer, 308 increase the layer, 310 bottom plate layer, 312 guiding part, 314 locating port, 40 soldered joint, 60 work pieces, 602 work piece base, 604 work piece apron, the position of first work piece mounting groove is shot to the A camera, and the position of second work piece mounting groove is shot to the B camera.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
A vacuum laser sealing machine and a control method of the vacuum laser sealing machine according to some embodiments of the present invention are described below with reference to fig. 1 to 5.
As shown in fig. 1 to 3, according to an aspect of the present invention, there is provided a vacuum laser sealing machine comprising: a vacuum chamber 10, wherein a motion platform 20 is arranged in the vacuum chamber 10; the vacuum laser seal welding tool 30 is arranged on the moving platform 20, and the vacuum laser seal welding tool 30 can move along with the moving platform 20 in the horizontal direction and the vertical direction; a plurality of workpiece mounting grooves 302 provided on the vacuum laser seal welding tool 30, the workpiece 60 being mounted in the plurality of workpiece mounting grooves 302; a welding head 40, the welding head 40 being used for welding a workpiece 60; the shooting device is used for collecting diagonal positions of any two of the plurality of workpiece mounting grooves 302; the controller is electrically connected with the shooting device, the welding head 40 and the motion platform 20, and is used for identifying the coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves 302 acquired by the shooting device so as to obtain the coordinates of each of the plurality of workpiece mounting grooves 302.
The vacuum laser seal welding machine provided by the invention comprises a vacuum chamber 10, a moving platform 20 and a vacuum laser seal welding tool 30, wherein the moving platform 20 is arranged in the vacuum chamber 10, the vacuum laser seal welding tool 30 is arranged on the moving platform 20 and can move along with the moving platform 20 in the horizontal direction and the vertical direction, a plurality of workpiece mounting grooves 302 are formed in the vacuum laser seal welding tool 30, a workpiece 60 is arranged in the plurality of workpiece mounting grooves 302, the vacuum laser seal welding machine further comprises a welding head 40, a shooting device and a controller, the welding head 40 is used for welding the workpiece 60, the shooting device is used for collecting the diagonal positions of any two of the plurality of workpiece mounting grooves 302, the controller is electrically connected with the shooting device, the welding head 40 and the moving platform 20, and the controller is used for identifying the coordinates of the diagonal positions of any two of the plurality of the workpiece mounting grooves 302 collected by the shooting device, so that the coordinates of each of the plurality of workpiece mounting grooves 302 can be automatically calculated through a program, and the vacuum laser seal welding machine can realize high-efficient seal welding of all the workpieces 60 placed in the plurality of workpiece mounting grooves 302 at one time by using the calculated coordinates. The step that the workpiece 60 needs to be subjected to laser pre-welding under the conventional air pressure condition in the related art is avoided, in the process that the welding head 40 welds the workpiece 60, shooting and positioning are not needed for each workpiece 60 placed in the plurality of workpiece mounting grooves 302, and the position deviation of each workpiece 60 does not need to be compensated when the welding head 40 welds, so that the precise alignment of the shapes of the base and the surface cover of the workpiece 60 in the vacuum laser seal welding of the batch of workpieces 60 is realized, the shape precision of the workpiece 60 after the vacuum laser seal welding is improved, the seal welding reliability is high, the product shape precision is high, the seal welding production efficiency is high, and the cost is low. Further, the vacuum laser sealing machine provided by the invention has the advantages that the structure is simple, the degree of automation is high, the shooting device is utilized to identify and position the diagonal positions of any two of the plurality of workpiece mounting grooves 302, the positioning parameters are sent to the controller, the coordinates of each of the plurality of workpiece mounting grooves 302 are obtained through the controller in combination with the pre-written program codes, the shooting and positioning of each workpiece 60 placed in the plurality of workpiece mounting grooves 302 are not needed, the automatic welding of the workpieces 60 is realized, and the production efficiency is greatly improved. Preferably, the workpiece 60 includes a workpiece base 602 and a workpiece cover plate 604, the workpiece cover plate 604 is disposed on the workpiece base 602 and is co-located in the workpiece mounting groove 302, and the purpose of welding with a vacuum laser sealing machine is to make the workpiece cover plate 604 and the workpiece base 602 integrated.
As shown in fig. 1 and 2, in one embodiment of the present invention, a plurality of workpiece mounting slots 302 are preferably distributed in an array on the vacuum laser seal tool 30.
In this embodiment, the plurality of workpiece mounting grooves 302 are distributed in an array on the vacuum laser seal welding tool 30, so that the plurality of workpiece mounting grooves 302 are distributed neatly, the welding head 40 is more convenient to weld the workpieces 60 placed in the plurality of workpiece mounting grooves 302, the moving path of the welding head 40 in the welding process can be simplified, and the welding efficiency can be improved.
As shown in fig. 1 and 2, in one embodiment of the present invention, the plurality of workpiece mounting grooves 302 are preferably rectangular in shape on the vacuum laser seal welding tool 30; the photographing device is used for collecting positions of two workpiece mounting grooves 302 located at opposite corners of the rectangle in the plurality of workpiece mounting grooves 302.
In this embodiment, the plurality of workpiece mounting grooves 302 are preferably rectangular on the vacuum laser seal welding tool 30, and the rectangular distribution makes the arrangement of the plurality of workpiece mounting grooves 302 neat, so that the welding head 40 is more convenient for welding the workpieces 60 placed in the plurality of workpiece mounting grooves 302, the moving path of the welding head 40 in the welding process can be simplified, and the welding efficiency can be improved; and set up shooting device and be used for gathering the position of two work piece mounting grooves 302 that lie in the diagonal angle of rectangle in a plurality of work piece mounting grooves 302, the distance between two work piece mounting grooves 302 that lie in the rectangle diagonal angle is great, gathers the coordinate of these two positions, can reduce the coordinate error of two adjacent work piece mounting grooves 302, improves the precision of coordinate to improve the welding precision of product, realize high efficiency, high accuracy vacuum laser seal welding.
Specifically, as shown in fig. 1, the position a of the first workpiece mounting groove is preferably located at one point of the opposite angle of the rectangle, the position B of the second workpiece mounting groove is preferably located at the other point of the opposite angle of the rectangle, and coordinates of the two positions are collected, so that coordinate errors of two adjacent workpiece mounting grooves can be reduced, and the precision of the coordinates is improved; of course, the present solution is not limited to this, and it can be understood that, according to actual needs, a person skilled in the art may set the position a of the first workpiece mounting groove shot by the shooting device and the position B of the second workpiece mounting groove shot by the shooting device at other positions, which are not listed here for specific situations in this respect, but all belong to the protection scope of the present solution without departing from the design concept.
As shown in fig. 1 and 3, in one embodiment of the present invention, preferably, the vacuum laser seal welding tool 30 includes: the guide layer 304, the positioning layer 306, the heightening layer 308 and the bottom plate layer 310 are connected through spot welding or thermal bonding; a guide portion 312 provided on the guide layer 304, the guide portion 312 being a bevel angle provided at a notch of the workpiece mounting groove 302, the bevel angle extending from a side wall of the workpiece mounting groove 302 toward an outside of the workpiece mounting groove 302; the size of the positioning opening 314 is matched with the size of the workpiece 60, the workpiece 60 is positioned in the positioning opening 314, and the difference between the size of the positioning opening 314 and the size of the workpiece 60 is less than or equal to 0.03mm; the thickness of the positioning layer 306 is in a range of 0.2mm or less.
In this embodiment, the vacuum laser seal welding tool 30 includes a guiding layer 304, a positioning layer 306, a raised layer 308 and a bottom plate layer 310, and preferably, the guiding layer 304, the positioning layer 306, the raised layer 308 and the bottom plate layer 310 are connected by spot welding or thermal bonding, so that the connection between the guiding layer 304, the positioning layer 306, the raised layer 308 and the bottom plate layer 310 is simple and stable. The guide portion 312 is provided on the guide layer 304, and the guide portion 312 is preferably a bevel angle provided at a notch of the workpiece mounting groove 302, the bevel angle extending from a side wall of the workpiece mounting groove 302 toward an outside of the workpiece mounting groove 302, and the guide portion 312 being provided so that a notch portion of the workpiece mounting groove 302 becomes larger in size, thereby making it easier for the workpiece 60 to enter the workpiece mounting groove 302 from the guide portion 312, facilitating placement of the workpiece 60. Further, the range of the inclination angle of the bevel angle provided at the notch of the workpiece mounting groove 302 with respect to the vertical direction is preferably 30 ° to 60 °, in which the processing of the guide portion 312 is facilitated and the workpiece 60 is easily mounted into the workpiece mounting groove 302 through the guide portion 312. The positioning layer 306 is provided with the positioning opening 314, the size of the positioning opening 314 is matched with the size of the workpiece 60, the workpiece 60 is positioned in the positioning opening 314, namely, the positioning opening 314 is a part of the workpiece mounting groove 302, the difference between the size of the positioning opening 314 and the size of the workpiece 60 is less than or equal to 0.03mm, and as the position of each workpiece 60 in the plurality of workpiece mounting grooves 302 of the vacuum laser seal welding tool 30 is determined by the precision of the positioning opening 314, the difference between the size of the positioning opening 314 and the size of the workpiece 60 is less than or equal to 0.03mm, so that the mounting position of the workpiece 60 is accurate, the welding precision of a product can be improved, preferably, the range of the thickness of the positioning layer 306 is less than or equal to 0.2mm, the thickness of the positioning layer 306 is thinner, and the machining precision of the positioning opening 314 can be improved; further, the floor layer 310 forms a bottom of the workpiece mounting groove 302, and the floor layer 310 holds the workpiece 60 when the workpiece 60 is mounted in the workpiece mounting groove 302.
As shown in fig. 1 to 3, in one embodiment of the present invention, the alignment openings 314 are preferably formed on the alignment layer 306 by an etching process or a wire cutting process.
In this embodiment, since the thickness of the positioning layer 306 is thinner, the positioning opening 314 can be formed on the positioning layer 306 by an etching process or a wire cutting process, and the processing precision of the etching process or the wire cutting process is high, so that the dimensional precision of the positioning opening 314 is high, thereby limiting the precision of the position of the workpiece 60 placed in the workpiece mounting groove 302 by the positioning opening 314, and improving the precision of the position of the workpiece 60.
In one embodiment of the present invention, it is preferable that a plane including a horizontal direction is formed on the moving platform 20, and the welding head 40 and the photographing device are installed in a vertical state on the plane perpendicular to the moving platform 20, and the relative positions of the welding head 40 and the photographing device are fixed.
In this embodiment, the moving platform 20 is used for carrying the vacuum laser seal welding tool 30 and driving it to move in the horizontal direction and the vertical direction, a plane including the horizontal direction is formed on the moving platform 20, the welding head 40 and the photographing device are installed on the plane perpendicular to the moving platform 20 in a vertical state, the relative positions of the welding head 40 and the photographing device are fixed, the welding head 40 is used for completing the welding operation of the workpiece 60, and the photographing device is used for completing the recording of the position of the workpiece 60.
In one embodiment of the present invention, motion platform 20 preferably comprises: the conveying rail 202, the conveying rail 202 can drive the vacuum laser seal welding tool 30 to move in the horizontal direction; the lifting platform 204, the lifting platform 204 can drive the vacuum laser seal welding tool 30 to move in the vertical direction.
In this embodiment, the motion platform 20 includes a conveying track 202 and a lifting platform 204, the conveying track 202 can drive the vacuum laser seal welding tool 30 to move in the horizontal direction, the lifting platform 204 can drive the vacuum laser seal welding tool 30 to move in the vertical direction, and the cooperation of the conveying track 202 and the lifting platform 204 can enable the vacuum laser seal welding tool 30 to move in the horizontal direction and the vertical direction, so that the flexibility of the vacuum laser seal welding tool 30 is increased, and the automatic welding is facilitated.
Fig. 4 shows a control method of the vacuum laser sealing machine according to the second aspect of the present invention.
As shown in fig. 4, a control method of a vacuum laser sealing machine according to an embodiment of the present invention includes:
s102, controlling the workpiece to be installed in a plurality of workpiece installation grooves;
s104, controlling a shooting device to collect diagonal positions of any two of the plurality of workpiece mounting grooves;
s106, recognizing coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device according to the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device, and calculating the coordinates of each of the plurality of workpiece mounting grooves;
S108, controlling the welding head to weld according to the preset direction according to the coordinates of each of the plurality of workpiece mounting grooves.
The control method of the vacuum laser sealing machine can be applied to welding between a workpiece base and a workpiece cover plate of the vacuum laser sealing machine, in the process of welding a workpiece by the vacuum laser sealing machine, the workpiece is firstly arranged in a plurality of workpiece mounting grooves, specifically, the workpiece comprises the workpiece cover plate and the workpiece base, the workpiece cover plate is arranged on the workpiece base and is jointly positioned in the workpiece mounting grooves, and further, the purpose of welding by the vacuum laser sealing machine is to enable the workpiece cover plate and the workpiece base to be formed into a whole; then the shooting device is controlled to collect diagonal positions of any two of the plurality of workpiece mounting grooves, diagonal position information of any two of the plurality of workpiece mounting grooves is sent to the controller, further, the controller recognizes coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves collected by the shooting device according to the diagonal positions of any two of the plurality of workpiece mounting grooves collected by the shooting device, and accordingly, the coordinates of each of the plurality of workpiece mounting grooves are automatically calculated through a program, the vacuum laser sealing machine utilizes the calculated coordinate information of each of the plurality of workpiece mounting grooves to control the welding head to weld according to a preset direction, and the vacuum laser sealing machine can seal all workpieces placed in the plurality of workpiece mounting grooves at one time, so that high-efficiency and high-precision vacuum laser sealing welding with batch performance is achieved. The method has the advantages that the step that the workpiece is required to be subjected to laser pre-welding under the conventional air pressure condition in the related technology is avoided, in the process that the workpiece is welded by the welding head, shooting and positioning are not required to be carried out on each workpiece placed in a plurality of workpiece mounting grooves, and the position deviation of each workpiece is not required to be compensated when the welding head is used for welding, so that the precise alignment of the shapes of the base and the surface cover of the workpiece in the vacuum laser seal welding of batch of workpieces is realized, the shape precision of the workpiece after the vacuum laser seal welding is improved, the seal welding reliability is high, the product shape precision is high, the seal welding production efficiency is high, and the cost is low. Furthermore, the vacuum laser sealing machine provided by the invention has the advantages that the structure is simple, the degree of automation is high, the shooting device is utilized to identify and position the diagonal positions of any two of the plurality of workpiece mounting grooves, the positioning parameters are sent to the controller, the coordinates of each of the plurality of workpiece mounting grooves are obtained through the controller in combination with the pre-written program codes, the shooting and positioning of each workpiece placed in the plurality of workpiece mounting grooves are not needed, the automatic welding of the workpieces is realized, and the production efficiency is greatly improved.
Fig. 5 shows a control method of the vacuum laser sealing machine according to an embodiment of the present invention.
As shown in fig. 5, a control method of a vacuum laser sealing machine according to an embodiment of the present invention includes:
s202, controlling the workpiece base to be installed in a plurality of workpiece installation grooves;
s204, controlling the workpiece cover plate to move and rotate to the workpiece base, and fixing the workpiece cover plate on the workpiece base;
S206, controlling the shooting device to collect diagonal positions of any two of the plurality of workpiece mounting grooves;
s208, recognizing coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device according to the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device, and calculating the coordinates of each of the plurality of workpiece mounting grooves;
s210, controlling a welding head to weld according to a preset direction according to the coordinates of each of the plurality of workpiece mounting grooves.
In this embodiment, the specific steps of controlling the mounting of the workpiece in the plurality of workpiece mounting grooves are: firstly, controlling a workpiece base to be installed in a plurality of workpiece installation grooves, specifically, controlling a workpiece to comprise a workpiece cover plate and the workpiece base, then controlling the workpiece cover plate to move and rotate to the workpiece base, fixing the workpiece cover plate on the workpiece base, specifically, arranging a suction nozzle on a vacuum laser sealing machine, and enabling the suction nozzle to adsorb the workpiece cover plate to move and rotate on the vacuum laser sealing machine so as to place the workpiece cover plate on the workpiece base; at this time, the workpiece cover plate cover is arranged on the workpiece base and is jointly positioned in the workpiece mounting groove, and the workpiece cover plate and the workpiece base are welded into a whole by utilizing the vacuum laser sealing machine.
In one embodiment of the present invention, preferably, the plurality of workpiece mounting slots are rectangular in shape on the vacuum laser sealing tool; the shooting device is used for recording positions of two workpiece mounting grooves which are positioned on opposite corners of the rectangle in the plurality of workpiece mounting grooves.
In the embodiment, the plurality of workpiece mounting grooves are preferably distributed in a rectangular shape on the vacuum laser seal welding tool, the rectangular distribution ensures that the plurality of workpiece mounting grooves are orderly arranged, the welding head is more convenient for welding workpieces placed in the plurality of workpiece mounting grooves, the moving path of the welding head in the welding process can be simplified, and the welding efficiency is improved; and set up the position that shooting device is used for gathering two work piece mounting grooves that lie in the diagonal angle of rectangle in a plurality of work piece mounting grooves, the distance between two work piece mounting grooves that lie in the rectangle diagonal angle is great, gathers the coordinate of these two positions, can reduce the coordinate error of two adjacent work piece mounting grooves, improves the precision of coordinate to improve the welding precision of product, realize high efficiency, high accuracy vacuum laser seal welding.
In the present invention, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A vacuum laser seam welder, comprising:
the vacuum chamber is internally provided with a motion platform;
The vacuum laser seal welding tool is arranged on the moving platform and can move along with the moving platform in the horizontal direction and the vertical direction;
The workpiece mounting grooves are formed in the vacuum laser sealing and welding tool, and workpieces are mounted in the workpiece mounting grooves;
The welding head is used for welding the workpiece;
the shooting device is used for collecting diagonal positions of any two of the plurality of workpiece mounting grooves;
The controller is electrically connected with the shooting device, the welding head and the motion platform and is used for identifying coordinates of diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device so as to obtain coordinates of each of the plurality of workpiece mounting grooves;
The plurality of workpiece mounting grooves are distributed in an array on the vacuum laser sealing and welding tool;
The vacuum laser seal welding tool comprises:
the guide layer, the positioning layer, the heightening layer and the bottom plate layer are connected through spot welding or thermal bonding;
A guide portion provided on the guide layer, the guide portion being a bevel angle provided at a notch of the workpiece mounting groove, the bevel angle extending from a side wall of the workpiece mounting groove toward an outside of the workpiece mounting groove;
The inclined angle of the notch of the workpiece mounting groove is 30-60 degrees from the vertical direction;
The size of the positioning opening is matched with the size of the workpiece, the workpiece is positioned in the positioning opening, and the difference between the size of the positioning opening and the size of the workpiece is less than or equal to 0.03mm;
the thickness of the positioning layer is smaller than or equal to 0.2mm;
The welding head and the shooting device are vertically arranged on the plane perpendicular to the moving platform, and the relative positions of the welding head and the shooting device are fixed.
2. The vacuum laser sealing machine according to claim 1, wherein,
The plurality of workpiece mounting grooves are distributed in a rectangular shape on the vacuum laser sealing and welding tool;
the shooting device is used for collecting positions of two workpiece mounting grooves which are positioned on opposite corners of the rectangle in the plurality of workpiece mounting grooves.
3. The vacuum laser sealing machine according to claim 1, wherein,
The positioning opening is formed on the positioning layer through an etching process or a wire cutting process.
4. The vacuum laser sealing machine according to claim 1 or 2, wherein,
The motion platform includes:
The conveying rail can drive the vacuum laser seal welding tool to move in the horizontal direction;
And the lifting platform can drive the vacuum laser seal welding tool to move in the vertical direction.
5. A control method of a vacuum laser sealing machine for a vacuum laser sealing machine according to any one of claims 1 to 4, comprising:
controlling the work pieces to be mounted in the plurality of work piece mounting slots;
Controlling the shooting device to acquire diagonal positions of any two of the plurality of workpiece mounting grooves;
Identifying coordinates of the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device according to the diagonal positions of any two of the plurality of workpiece mounting grooves acquired by the shooting device, and calculating the coordinates of each of the plurality of workpiece mounting grooves;
And controlling the welding head to weld according to a preset direction according to the coordinates of each of the plurality of workpiece mounting grooves.
6. The method of controlling a vacuum laser sealing machine according to claim 5, wherein the specific steps of controlling the mounting of the workpiece in the plurality of workpiece mounting grooves are:
Controlling the workpiece base to be installed in the plurality of workpiece installation grooves;
And controlling the workpiece cover plate to move and rotate to the workpiece base, and fixing the workpiece cover plate on the workpiece base.
7. The control method of a vacuum laser sealing machine according to claim 5, wherein,
The plurality of workpiece mounting grooves are distributed in a rectangular shape on the vacuum laser sealing and welding tool;
The shooting device is used for recording positions of two workpiece mounting grooves which are positioned on opposite corners of the rectangle in the plurality of workpiece mounting grooves.
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| CN110449758A (en) * | 2019-08-29 | 2019-11-15 | 承德奥斯力特电子科技有限公司 | A kind of crystal normotopia device for Laser seal welding |
| CN111730185B (en) * | 2020-07-27 | 2020-11-20 | 烟台华创智能装备有限公司 | Automatic parallel sealing device and sealing method based on image recognition |
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