CN110524114A - A kind of refrigerator-freezer door-plate laser automatic welding device - Google Patents
A kind of refrigerator-freezer door-plate laser automatic welding device Download PDFInfo
- Publication number
- CN110524114A CN110524114A CN201910909197.3A CN201910909197A CN110524114A CN 110524114 A CN110524114 A CN 110524114A CN 201910909197 A CN201910909197 A CN 201910909197A CN 110524114 A CN110524114 A CN 110524114A
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- Prior art keywords
- refrigerator
- angle
- panel
- door
- plate
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- 238000003466 welding Methods 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B23K26/24—Seam 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
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Refrigerator Housings (AREA)
Abstract
The present invention relates to Automatic manual transmission fields, and in particular to a kind of refrigerator-freezer door-plate laser automatic welding device, including left and right two operation positions, robot welding head, cabinet；The robot welding head for welding the panel on operation position accordingly；The operation position is arranged four angle fixed structures and refrigerator-freezer door-plate is fixed, including apex angle fixed block in outer point-angle fixing structure, outer top margin fixed structure in fixed structure；Air cylinder structure is made full use of to be controlled in fixed structure, so that the welding for door-plate provides favourable conditions.The welding object of the present apparatus includes the side of two handles of panel of refrigerator and the reverse side at two right angles, and a bonding machine welding different sides may be implemented using that can become board.
Description
Technical field
The present invention relates to Automatic manual transmission fields, and in particular to a kind of refrigerator-freezer door-plate laser automatic welding device.
Background technique
Commercial refrigerator door-plate is metal plate bending part, after metal plate bending, to make part become an entirety, bending stitching portion
Also welded.Welding mostly uses artificial argon arc welding at present, and low efficiency, weldquality is poor, and the later period also needs largely
It polishes the time.
Laser welding belongs to from melting welding, does not need added material, and smooth welding joint is full, can perfect substitution argon arc welding.But ice
Error is generally all in 1mm or more after cabinet door panel bending, and stitching portion gap is generally more than the 20% of plate thickness, and laser welding difficulty is big.
The equipment for now connecing refrigerator-freezer door-plate with optical fiber continuous laser welding on the market is less, especially automatic welding aspect, essentially blank.Such as
Attached such as attached drawing 6 and attached drawing 7 are the figure front and back of the refrigerator door panel welded, and front needs four to refrigerator door panel
A angle is welded, and weld seam one, two, three therein is one of angle, and reverse side needs to weld 4 45 ° of oblique angles face.From figure
It can be seen that is welded is difficult, it is also very big that the degree of automated production improves difficulty.
Summary of the invention
1. technical problem to be solved:
In view of the above technical problems, the present invention provides a kind of refrigerator-freezer door-plate laser automatic welding device.Refrigerator-freezer after bending
The structure of door is rectangle, and bottom is right angle flange, and there are one presentation half " work " rows on hand.Therefore corresponding work is needed
Part carries out end of door plate and is fixed, and facilitates the replacement of door-plate while fixed, improves the automated production degree of workpiece.
2. technical solution:
A kind of refrigerator-freezer door-plate laser automatic welding device, including left and right two operation positions, robot welding head, cabinet；It is described
Robot welding head for welding the panel on operation position accordingly.
The operation position includes displacement board；The square panel of the displacement board, which can be realized, faces robot welding
Head overturning；Two mounting plates are set side by side in the square panel upper end, and the mounting plate on the left side therein can be along a square panel left side
It moves right；The installation Board position on the right side is motionless；Refrigerator-freezer door-plate to be processed lies in installation plate surface；The four of the refrigerator-freezer door-plate
Panel is fixed on the surface of mounting plate by the fixed structure that a angle passes sequentially through four angles of panel；Installation plate surface is located at refrigerator-freezer
The quadrangle of panel needs the position welded to be set as through-hole structure.
First jiao of mounting plate inner edge positioned at the right side；The mounting plate inner edge is for placing the non-on hand of refrigerator-freezer door-plate；
First jiao of the fixed structure includes outer apex angle fixed cell and interior angle fixed block；When refrigerator door panel is placed into mounting plate table
Interior angle fixed block is located inside refrigerator doors plate angle and agrees with first jiao of internal structure of door-plate when face；The outer apex angle fixed cell
Mutually agree with positioned at first jiao of outside and the first outside of angle；The outer apex angle fixed cell includes imitative with the angle end of the first angular contact
Shape block and the cylinder for pushing profiling block in angle end mobile.
Second jiao of mounting plate inner edge positioned at the left side；Second jiao of the fixed structure includes outer apex angle fixed cell, interior
Top margin fixed cell；A left side for refrigerator door panel is withstood outward in second jiao of inside that the interior top margin fixed cell is installed on refrigerator door panel
Side；The interior top margin fixed cell includes the profiling block adapted to second jiao of side being in contact and profiling block is pushed to move
Cylinder.
The third angle is located at the outside of the mounting plate on the left side；The outside is the side at the place of the handle of refrigerator door panel；Third
The fixed structure at angle includes outer top margin fixed cell, door handle compressing unit and guide rail structure；The outer top margin fixed cell peace
The position for being located at the third angle mounted in refrigerator door panel left end can push the side of refrigerator door panel；The outer top margin fixed cell includes
The bending profiling block that the side contacted is adapted and the cylinder for pushing profiling block mobile；The bending profiling block includes cuboid
With it is trapezoidal, cuboid is located at the flanging lower end of panel of refrigerator, and the trapezoidal bevel edge with handle mutually agrees with；Door handle compressing unit includes
Door handle top tight structure, door handle pressing structure；The door handle top tight structure by the left side of the third angle of refrigerator door panel towards
Right top, door handle pressing structure push the upper surface of the third angle of refrigerator door panel；The guide rail structure is mounted on third
The bottom of the fixed structure at angle, wherein guide rail is mounted on the surface of mounting plate, the cylinder of the door handle top tight structure stretch out with
Entire door handle compressing unit is able to drive when retraction to move horizontally on guide rail.
Fourth angle is located at outside the mounting plate on the right side；The fixed structure phase of the fixed structure of the fourth angle and the third angle
Together, contrary.
It further, include top compressing structure in the fixed structure at each angle；The top compressing structure includes gas
Cylinder, the hold-down head of cylinder control and the supporting block immediately below hold-down head；When compression, on the hold-down head and panel of refrigerator
Surface is in contact, and the supporting block is contacted with the folding face of panel of refrigerator.
Further, the angle end profiling block in first jiao of fixed structure includes angle end and two parts of bending part；Wherein
Angle end is that right angle can be adapted with the angle of refrigerator door panel, and bending part, which is located at below the folding face of refrigerator door panel, holds refrigerator door panel
Bottom folding face.
Further, the laser head in the robot welding head is laser output laser beam, by fibre system
Coupling and transmission, focus at plumb joint.
It further, further include industrial personal computer and PLC；The industrial personal computer is connected with PLC；Square panel rotation motor with
PLC is connected；The control circuit of robot welding head is connected with PLC；The control circuit of cylinder is connected with PLC.
3. the utility model has the advantages that
(1) welding object of the present apparatus includes the side of two handles of panel of refrigerator and the reverse side at two right angles, and using can be with
Becoming board may be implemented a bonding machine welding different sides.
(2) two positioner platforms are used in this programme, are realized lifting workpiece and welding crossing operation, are made upper and lower work
Part is Chong Die with weld interval, improves production efficiency.
(3) all tooling and function are integrated in this programme on station, using servo motor as power, realizes entire machine
The rotation of structure, the rotation angle of the accurate control mechanism of program.
(4) it is carried out from inside and outside to panel in this programme using the angle profiling block adapted to four angular shapes of refrigerator inner panel
Dock With Precision Position provide precise conditions for laser welding.Using the purpose of above-mentioned compression cylinder it is main there are two: each weld seam is determined
Batch-automated welding is realized to specified position in position；There are many compression cylinder bands and the consistent tracer head of door-plate shape, it is seen that
Door-plate secondary reshaping makes bending binding face gap be decreased to plate thickness 15% hereinafter, meeting the basic demand of laser self-welding.
Detailed description of the invention
Fig. 1 is the overall structure schematic diagram of automatic welding device；
Fig. 2 is the structure chart of a station of the invention；
Fig. 3 is the structure chart of the outer apex angle fixed cell in the present invention；
Fig. 4 is the bending hold-down mechanism of the outer top margin fixed cell of fourth angle in the present invention；
Fig. 5 is the operational flow diagram of each cylinder in specific embodiment；
Fig. 6 is the fillet in normal shear position view for needing to weld door-plate in the present apparatus；
Fig. 7 is the reverse side position while welding schematic diagram for needing to weld door-plate in the present apparatus.
Specific embodiment
The present invention is specifically described with reference to the accompanying drawing.
As shown in attached drawing 1 to 5, a kind of refrigerator-freezer door-plate laser automatic welding device, including left and right two operation positions 1, machines
Device people plumb joint 2, cabinet 3；The robot welding head for welding the panel on operation position accordingly.
The operation position includes displacement board；The square panel of the displacement board, which can be realized, faces robot welding
Head overturning；Two mounting plates are set side by side in the square panel upper end, and the mounting plate on the left side therein can be along a square panel left side
It moves right；The installation Board position on the right side is motionless；Refrigerator-freezer door-plate to be processed lies in installation plate surface；The four of the refrigerator-freezer door-plate
Panel is fixed on the surface of mounting plate by the fixed structure that a angle passes sequentially through four angles of panel；Installation plate surface is located at refrigerator-freezer
The quadrangle of panel needs the position welded to be set as through-hole structure.
First jiao of mounting plate inner edge positioned at the right side；The mounting plate inner edge is for placing the non-on hand of refrigerator-freezer door-plate；
First jiao of the fixed structure includes outer apex angle fixed cell 11 and interior angle fixed block 12；When refrigerator door panel is placed into installation
Interior angle fixed block 12 is located inside refrigerator doors plate angle and agrees with first jiao of internal structure of door-plate when plate surface；The outer apex angle is solid
Order member is mutually agreed with positioned at first jiao of outside with the first outside of angle；The outer apex angle fixed cell includes and the first angular contact
Angle end profiling block 111 and the cylinder 112 for pushing profiling block in angle end mobile；113 adjust handle for cylinder stroke in Fig. 3.
Second jiao of mounting plate inner edge positioned at the left side；Second jiao of the fixed structure include outer apex angle fixed cell 11,
Interior top margin fixed cell 13；Refrigerator door panel is withstood outward in second jiao of inside that the interior top margin fixed cell is installed on refrigerator door panel
Left side；The interior top margin fixed cell includes the profiling block adapted to second jiao of side being in contact and profiling block is pushed to transport
Dynamic cylinder.
The third angle is located at the outside of the mounting plate on the left side；The outside is the side at the place of the handle of refrigerator door panel；Third
The fixed structure at angle includes outer top margin fixed cell 14, door handle compressing unit 15 and guide rail structure 16；The outer top margin is fixed
Unit, which is mounted on refrigerator door panel left end and is located at the position of the third angle, can push the side of refrigerator door panel；The outer top margin is fixed single
Member includes the bending profiling block 17 that the side contacted is adapted and the cylinder for pushing profiling block mobile；The bending profiling block packet
Include cuboid with it is trapezoidal, cuboid is located at the flanging lower end of panel of refrigerator, and the trapezoidal bevel edge with handle mutually agrees with；Door handle compresses
Unit includes door handle top tight structure, door handle pressing structure；The door handle top tight structure is by the third angle of refrigerator door panel
Left side is pushed up to the right, and door handle pressing structure pushes the upper surface of the third angle of refrigerator door panel；The guide rail structure peace
Mounted in the bottom of the fixed structure of the third angle, wherein guide rail is mounted on the surface of mounting plate, the gas of the door handle top tight structure
Cylinder is able to drive entire door handle compressing unit when stretching out with retraction and moves horizontally on guide rail；113 be cylinder stroke tune in Fig. 4
Whole handle.
Fourth angle is located at outside the mounting plate on the right side；The fixed structure phase of the fixed structure of the fourth angle and the third angle
Together, contrary.
Fig. 4 is the outer top margin fixed cell of fourth angle, and the structure of the third angle is same, only contrary.
It further, include top compressing structure 18 in the fixed structure at each angle；The top compressing structure includes
Cylinder, the hold-down head of cylinder control and the supporting block immediately below hold-down head；When compression, the hold-down head and panel of refrigerator
Upper surface is in contact, and the supporting block is contacted with the folding face of panel of refrigerator.
Further, the angle end profiling block in first jiao of fixed structure includes angle end and two parts of bending part；Wherein
Angle end is that right angle can be adapted with the angle of refrigerator door panel, and bending part, which is located at below the folding face of refrigerator door panel, holds refrigerator door panel
Bottom folding face.
Further, the laser head in the robot welding head is laser output laser beam, by fibre system
Coupling and transmission, focus at plumb joint.
It further, further include industrial personal computer and PLC；The industrial personal computer is connected with PLC；Square panel rotation motor with
PLC is connected；The control circuit of robot welding head is connected with PLC；The control circuit of cylinder is connected with PLC.Laser and cold water
Machine is mounted on as in the cabinet 3 in attached drawing 1.
Specific implementation process:
Attached drawing 6,7 is the connecting sewing for needing to weld, and as shown in Fig. 5, each cylinder unclamps, and refrigerator-freezer door-plate is manually placed into change
Corresponding four Angle Positions of the mounting plate of position board, i.e. artificial loading are completed, and the optoelectronic switch for being mounted on operation position detects automatically
After workpiece is put well, indicator light is lighted, and after operator takes switch, each compression cylinder sequence of motion is as shown in Fig. 5 by door-plate
It realizes and fixes.Displacement board, which is rotated to welding position, to be started to weld, and completes one of weld seam, and displacement board then changes rotation angle
Degree, until completing welding.Cylinder is unclamped by the opposite direction of above-mentioned process, and a working cycles are completed in then blanking.In the present apparatus
All cylinders extend and retract state and all have a feedback signal, when no signal, cylinder movement can not continue, robot motion with
Cylinder model is chain, guarantees operator's safety.
Although the present invention has been described by way of example and in terms of the preferred embodiments, they be not it is for the purpose of limiting the invention, it is any ripe
This those skilled in the art is practised, without departing from the spirit and scope of the invention, can make various changes or retouch from working as, therefore guarantor of the invention
Shield range should be subject to what claims hereof protection scope was defined.
Claims (5)
1. a kind of refrigerator-freezer door-plate laser automatic welding device, including left and right two operation positions, robot welding head, cabinet；Institute
Robot welding head is stated for being welded accordingly to the panel on operation position；It is characterized by:
The operation position includes displacement board；The square panel of the displacement board, which can be realized, to be faced robot welding head and turns over
Turn；Two mounting plates are set side by side in the square panel upper end, and the mounting plate on the left side therein can be moved along square panel or so
It is dynamic；The installation Board position on the right side is motionless；Refrigerator-freezer door-plate to be processed lies in installation plate surface；Four angles of the refrigerator-freezer door-plate
Panel is fixed on the surface of mounting plate by the fixed structure for passing sequentially through four angles of panel；Installation plate surface is located at refrigerator-freezer panel
Quadrangle need the position welded to be set as through-hole structure；
First jiao of mounting plate inner edge positioned at the right side；The mounting plate inner edge is for placing the non-on hand of refrigerator-freezer door-plate；It is described
First jiao of fixed structure includes outer apex angle fixed cell and interior angle fixed block；When refrigerator door panel is placed into installation plate surface
Interior angle fixed block is located inside refrigerator doors plate angle to be agreed with first jiao of internal structure of door-plate；The outer apex angle fixed cell is located at
Mutually agree with the first outside of angle first jiao of outside；The outer apex angle fixed cell includes the angle end profiling block with the first angular contact
With the cylinder for pushing profiling block in angle end mobile；
Second jiao of mounting plate inner edge positioned at the left side；Second jiao of the fixed structure includes outer apex angle fixed cell, interior top margin
Fixed cell；The left side of refrigerator door panel is withstood outward in second jiao of inside that the interior top margin fixed cell is installed on refrigerator door panel
Side；The interior top margin fixed cell includes the profiling block adapted to second jiao of side being in contact and the gas for pushing the movement of profiling block
Cylinder；
The third angle is located at the outside of the mounting plate on the left side；The outside is the side at the place of the handle of refrigerator door panel；The third angle
Fixed structure includes outer top margin fixed cell, door handle compressing unit and guide rail structure；The outer top margin fixed cell is mounted on
The position that refrigerator door panel left end is located at the third angle can push the side of refrigerator door panel；The outer top margin fixed cell includes therewith
The bending profiling block that the side of contact is adapted and the cylinder for pushing profiling block mobile；The bending profiling block includes cuboid and ladder
Shape, cuboid are located at the flanging lower end of panel of refrigerator, and the trapezoidal bevel edge with handle mutually agrees with；Door handle compressing unit includes door knob
Hand top tight structure, door handle pressing structure；The door handle top tight structure pushes up to the right the left side of the third angle of refrigerator door panel,
Door handle pressing structure pushes the upper surface of the third angle of refrigerator door panel；The guide rail structure is mounted on the third angle
The bottom of fixed structure, wherein guide rail is mounted on the surface of mounting plate, and the cylinder of the door handle top tight structure is stretched out and retracted
When be able to drive entire door handle compressing unit and moved horizontally on guide rail；
Fourth angle is located at outside the mounting plate on the right side；The fixed structure of the fourth angle and the fixed structure of the third angle are identical, side
To opposite.
2. a kind of refrigerator-freezer door-plate laser automatic welding device according to claim 1, it is characterised in that: the fixation at each angle
It include top compressing structure in structure；The top compressing structure include cylinder, cylinder control hold-down head and be located at pressure
Supporting block immediately below tight head；When compression, the hold-down head is in contact with panel of refrigerator upper surface, the supporting block and refrigerator face
The folding face of plate contacts.
3. a kind of refrigerator-freezer door-plate laser automatic welding device according to claim 1, it is characterised in that: first jiao of fixation
Angle end profiling block in structure includes angle end and two parts of bending part；Wherein angle end is that right angle can be with the angle phase of refrigerator door panel
It adapts to, bending part is located at the bottom folding face that refrigerator door panel is held below the folding face of refrigerator door panel.
4. a kind of refrigerator-freezer door-plate laser automatic welding device according to claim 1, it is characterised in that: the robot weldering
Laser head in connector is laser output laser beam, by the coupling and transmission of fibre system, is focused at plumb joint.
5. a kind of refrigerator-freezer door-plate laser automatic welding device according to claim 1, it is characterised in that: further include industrial personal computer
With PLC；The industrial personal computer is connected with PLC；The motor of square panel rotation is connected with PLC；The control circuit of robot welding head
It is connected with PLC；The control circuit of cylinder is connected with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909197.3A CN110524114B (en) | 2019-09-25 | 2019-09-25 | Automatic laser welding equipment for refrigerator door plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909197.3A CN110524114B (en) | 2019-09-25 | 2019-09-25 | Automatic laser welding equipment for refrigerator door plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110524114A true CN110524114A (en) | 2019-12-03 |
| CN110524114B CN110524114B (en) | 2024-02-06 |
Family
ID=68670033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910909197.3A Active CN110524114B (en) | 2019-09-25 | 2019-09-25 | Automatic laser welding equipment for refrigerator door plate |
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| CN (1) | CN110524114B (en) |
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| CN112387821A (en) * | 2020-12-07 | 2021-02-23 | 冰轮环境技术股份有限公司 | Device and method for machining right-angle bent sheet metal part without trimming |
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|---|---|---|---|---|
| CN111496438A (en) * | 2020-04-13 | 2020-08-07 | 台州市清引环保科技有限公司 | Rectangular plate four corners welding piece of bending is with supplementary fixture |
| CN112387821A (en) * | 2020-12-07 | 2021-02-23 | 冰轮环境技术股份有限公司 | Device and method for machining right-angle bent sheet metal part without trimming |
| CN112387821B (en) * | 2020-12-07 | 2022-06-14 | 冰轮环境技术股份有限公司 | Device and method for machining right-angle bent sheet metal part without trimming |
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|---|---|
| CN110524114B (en) | 2024-02-06 |
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