CN110539191A - Special fixture for lower cross beam of automobile front wall plate - Google Patents
Special fixture for lower cross beam of automobile front wall plate Download PDFInfo
- Publication number
- CN110539191A CN110539191A CN201910978227.6A CN201910978227A CN110539191A CN 110539191 A CN110539191 A CN 110539191A CN 201910978227 A CN201910978227 A CN 201910978227A CN 110539191 A CN110539191 A CN 110539191A
- Authority
- CN
- China
- Prior art keywords
- front wall
- cross beam
- lower cross
- automobile
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a special clamp for a lower cross beam of a front wall plate of an automobile, which comprises a base, three fixing pins, two clamps and a telescopic pressing mechanism, wherein the three fixing pins are arranged on the base; the telescopic pressing mechanism comprises an oil cylinder, a connecting block and a pressing strip; the oil cylinder drives the pressing strip to extend into a cavity of the lower cross beam of the front wall panel of the automobile through the connecting block, and the lower cross beam of the front wall panel of the automobile is clamped by the other end of the pressing strip and the corresponding fixing pin. According to the invention, through the clamp and the telescopic pressing mechanism, three-point positioning of the lower beam of the front wall plate of the automobile is realized, a workpiece is stably and conveniently clamped, and the processing yield and quality are greatly improved.
Description
Technical Field
The invention relates to the technical field of automobile part machining clamps, in particular to a special clamp for a lower cross beam of an automobile front wall plate.
Background
A chinese patent (application No. 201822100681.5) discloses a front wall lower beam structure of an automobile, which has a hollow cavity 3 with a trapezoidal cross section, and a plurality of reinforcing plates 2 are arranged in the cavity, as shown in fig. 1; the outer surface of the lower cross beam mainly comprises an upper bottom surface 11, a lower bottom surface 12 and two side surfaces 13, wherein a first connecting plate 41 and a second connecting plate 42 are respectively arranged on extension lines of the two side surfaces 13 towards the direction of the lower bottom surface 12 of the cavity, and the outer surface of the lower cross beam needs to be punched in an assisting manner through a special clamp.
referring to fig. 2, when the lower beam is actually assembled, it is necessary to ensure the linearity tolerance between A, B, C three positioning points, so when designing a special fixture, the workpiece should be fixed and positioned in the Z direction with respect to the three positioning points, and the other directions of the workpiece should be positioned according to the 321 positioning principle of the tooling fixture.
The points a and B are located at the respective ends of the first connecting plate 41 and can be clamped by conventional clamps; the point C is positioned on the side surface 13 of the lower cross beam, and the structure of the lower cross beam corresponding to the point C is special and cannot be clamped and positioned by a conventional means; and after fixing A, B, C setpoint through the fixed pin, in order to guarantee that the automobile front wall lower beam can not produce the vibration during processing, need press from both sides tightly in other positions, but this lower beam is made through aluminium extruded material, and every plane after its shaping is not completely level and smooth, can have unevenness's the condition, and current anchor clamps can press from both sides tightly other positions with the fixed pin usually, often can lead to it to produce the deformation, consequently need provide a neotype special fixture.
Disclosure of Invention
based on the above, the invention aims to overcome the defects and shortcomings in the prior art and provide a special clamp for a lower cross beam of a front wall panel of an automobile.
A special clamp for a lower cross beam of a front wall plate of an automobile comprises a base, three fixing pins, two clamps and a telescopic pressing mechanism; the three fixing pins are arranged on the base at positions corresponding to three positioning points of a lower cross beam of the front wall plate of the automobile; the two clamps are arranged on the base corresponding to two of the fixing pins and are used for clamping a positioning point A and a positioning point B corresponding to the first connecting plate of the lower cross beam of the automobile front wall plate; the telescopic pressing mechanism comprises an oil cylinder, a connecting block and a pressing strip; the oil cylinder is arranged on the base along the length direction of the cavity of the lower cross beam of the front wall plate of the automobile; one end of the pressing strip is connected with the output end of the oil cylinder through a connecting block, and the pressing strip and the oil cylinder are arranged in parallel;
the oil cylinder drives the pressing strip to extend into a cavity of the lower cross beam of the front wall plate of the automobile through the connecting block, and the other end of the pressing strip and the corresponding fixing pin clamp a C positioning point of the lower cross beam of the front wall plate of the automobile.
The special fixture for the lower cross beam of the automobile front wall plate realizes three-point positioning of the lower cross beam of the automobile front wall plate through the clamp and the telescopic pressing mechanism, positions the workpiece in the Z direction through the three points, limits three degrees of freedom of the workpiece, stably and conveniently clamps the workpiece, and greatly improves the processing yield and quality.
Furthermore, the telescopic pressing mechanism also comprises a clamp; the clamp is arranged on the base, arranged on one side of the pressing strip and used for pressing the pressing strip.
Through additionally arranging the clamp, the clamp can be enabled to compress the compressing strip, and then the compressing strip can be enabled to more stably compress the C positioning point of the lower cross beam of the front wall plate of the automobile.
Furthermore, the hydraulic floating device also comprises a plurality of hydraulic floating pins; and the plurality of hydraulic floating pins are arranged on the base and are arranged below the corresponding lower beam of the automobile front wall plate and the corresponding pressing strip.
After the A, B, C positioning points are fixed through the fixing pins, in order to ensure that the lower cross beam of the automobile front wall panel does not vibrate during processing, other positions are required to be clamped; after the lower cross beam of the automobile front wall plate is formed by aluminum extrusion, each plane is not completely flat, and the situation of unevenness exists, so that other positions of the lower cross beam of the automobile front wall plate cannot be fixed through fixing pins and clamps, otherwise, workpieces are deformed; through setting up hydraulic pressure floating pin in the below of work piece and compressing tightly the strip, hydraulic pressure floating pin can rise automatically and stop after the contact work piece, can play the effect of assistance-localization real-time and floating regulation, can reduce the deviation of location.
Further, the device also comprises a plurality of clamps; the clamps are arranged on the base, wherein the two clamps are used for clamping the edges of two side surfaces of the lower cross beam of the automobile front wall plate; and the rest clamps are matched with a plurality of corresponding hydraulic floating pins to clamp the first connecting plate.
After the hydraulic floating pin is contacted with the workpiece, the clamp is matched with the hydraulic floating pin to clamp the first connecting plate of the lower cross beam of the front wall plate of the automobile, so that the workpiece is clamped by the clamp more stably; the edge of the side face above the lower cross beam of the automobile front wall panel is clamped through the clamp, and then the Y direction of the workpiece is positioned through two points, so that two degrees of freedom of the workpiece are limited.
Further, the device also comprises two guide blocks; two guide blocks correspond the both ends position setting of the first connecting plate of vapour vehicle front wall board bottom end rail and are in on the base.
By arranging the guide block, the X-direction of the workpiece passing through one point is positioned, and one degree of freedom of the workpiece is limited.
further, the device also comprises a rotating platform; two ends of the base are fixedly connected with two ends of the rotating platform; the rotating platform can drive the base to rotate.
Through setting up rotary platform, can realize the rotation of work piece, improve the efficiency of processing the work piece.
further, the clamp is a hydraulic clamp.
By using the hydraulic clamp, the automatic work of the clamp is realized, and the automobile front wallboard cross beam can be stably clamped.
Furthermore, a plurality of lifting lugs are arranged on the base.
Through setting up the lug, conveniently fix the base to rotary platform on.
The invention limits six degrees of freedom of the workpiece by 321 positioning principle, thereby reasonably and effectively positioning the workpiece.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a front lower beam of an automobile in the background art;
FIG. 2 is a schematic diagram of a positioning point of a front lower beam of an automobile in the background art;
FIG. 3 is a schematic view of the present invention showing the operation of the special fixture for the lower cross member of the front wall panel of the automobile;
FIG. 4 is a schematic structural view of a special fixture for a lower cross beam of an automobile front wall panel according to the present invention;
Fig. 5 is a partial enlarged view D of fig. 4.
In the figure: 1. a lower cross beam of the automobile front wall panel; 11. an upper bottom surface; 12. a lower bottom surface; 13. a side surface; 2. a reinforcing plate; 3. a cavity; 41. a first connecting plate; 42. a second connecting plate; 100. a base; 110. lifting lugs; 200. a fixing pin; 300. clamping; 400. a retractable clamping mechanism; 410. an oil cylinder; 420. connecting blocks; 430. compressing the strips; 500. a hydraulic floating pin; 600. a guide block; 700. and rotating the platform.
Detailed Description
Referring to fig. 1 to 5, the special fixture for the lower beam 1 of the front wall panel of the automobile of the present embodiment includes a base 100, three fixing pins 200, ten clamps 300, fourteen hydraulic floating pins 500, a retractable pressing mechanism, two guide blocks 600, and a rotating platform 700; four lifting lugs 110 are arranged on the base 100; the telescopic pressing mechanism comprises an oil cylinder 410, a connecting block 420, a pressing strip 430 and a clamp 300; the clamps 300 are all hydraulic clamps.
The connection mode of this embodiment:
two ends of the base 100 are fixedly connected with two ends of the rotating platform 700; the rotating platform 700 can drive the base 100 to rotate;
The three fixing pins 200 are arranged on the base 100 at positions corresponding to three positioning points of the lower beam 1 of the front wall plate of the automobile; the two clamps 300 are arranged on the base 100 corresponding to the two fixing pins 200 and are used for clamping the positioning points A and B corresponding to the first connecting plate 41 of the lower cross beam 1 of the automobile front wall panel;
The oil cylinder 410 is arranged on the base 100 along the length direction of the cavity of the lower beam 1 of the front wall plate of the automobile; one end of the pressing strip 430 is connected with the output end of the oil cylinder 410 through a connecting block 420, and the pressing strip 430 is arranged in parallel with the oil cylinder 410; the clamp 300 of the telescopic mechanism is arranged on the base 100 and is arranged on one side of the pressing strip 430 for pressing the pressing strip 430; the oil cylinder 410 drives the pressing strip 430 to extend into a cavity of the lower cross beam 1 of the front wall plate of the automobile through the connecting block 420, and the other end of the pressing strip 430 and the corresponding fixing pin 200 clamp a C positioning point of the lower cross beam 1 of the front wall plate of the automobile;
the other eight clamps 300 and the fourteen hydraulic floating pins 500 are all arranged on the base 100; one of the hydraulic floating pins 500 is arranged below one end of the pressing strip 430 for supporting, and the other hydraulic floating pins 500 are arranged below the lower cross beam 1 of the automobile front wall panel; two clamps 300 clamp two ends of the side surface 13 above the lower cross beam 1 of the front wall plate of the automobile, and the rest clamps are matched with the corresponding hydraulic floating pins 500 to clamp the edge of the side surface 13 below the lower cross beam 1 of the front wall plate of the automobile and the first connecting plate 41;
the two guide blocks 600 are arranged on the base 100 corresponding to the two ends of the first connecting plate 41 of the lower cross beam 1 of the automobile front wall plate.
The working process of the embodiment:
firstly, placing a lower cross beam 1 of a front wall plate of an automobile to be processed at a corresponding position on a clamp, taking a first connecting plate 41 and a corresponding side surface 13 as supporting surfaces, clamping the lower cross beam of the front wall plate of the automobile through a guide block 600 and two clamps 300 corresponding to the edges of the upper side surface of the lower cross beam of the front wall plate of the automobile, matching through three fixing pins 200, two clamps 300 and a telescopic pressing mechanism, clamping three positioning points of the lower cross beam 1 of the front wall plate of the automobile, namely positioning one point of the X direction of a workpiece through the guide block, positioning two points of the Y direction of the workpiece through the two clamps, and positioning the Z direction of the workpiece through the fixing pins, so that six degrees of freedom of the lower cross beam of the front wall plate of the automobile are limited, and further the positioning of; specifically, the oil cylinder 410 drives the connecting block 420 to further drive the pressing strip 430 to extend into a cavity of the lower cross beam 1 of the front wall panel of the automobile, the pressing strip 430 is pressed against the lower cross beam 1 of the front wall panel of the automobile through the corresponding clamp 300, and the lower cross beam 1 of the front wall panel of the automobile is clamped by the corresponding fixing pin 200;
The hydraulic floating pin 500 is lifted upwards until contacting the lower cross beam 1 of the automobile front wall plate, and the hydraulic floating pin stops to play a supporting role; the corresponding clamp 300 and the corresponding hydraulic floating pin 500 clamp the edge of the side surface 13 below the lower cross beam 1 of the automobile front wall plate and the first connecting plate 41; and then whole anchor clamps accomplish the clamp of car front wall board bottom end rail 1 to can process car front wall board bottom end rail 1.
Compared with the prior art, the invention realizes three-point positioning of the lower cross beam of the automobile front wall plate through the clamp and the telescopic pressing mechanism, stably and conveniently clamps the workpiece, and greatly improves the processing yield and quality.
In addition, each plane of the lower cross beam of the automobile front wall plate is not completely flat after being formed, and is required to be uneven; after the A, B, C positioning points are fixed through the fixing pins, other positions of the lower cross beam of the automobile front wall plate cannot be fixed through the fixing pins and the clamps, otherwise, the workpiece is deformed; through setting up hydraulic pressure floating pin in the below of work piece and compressing tightly the strip, hydraulic pressure floating pin can rise automatically and stop after the contact work piece, can play the effect of assistance-localization real-time and floating regulation, can reduce the deviation of location.
the above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The utility model provides a special fixture of car antetheca board bottom end rail which characterized in that: comprises that
A base (100);
The three fixing pins (200) are arranged on the base (100) at positions corresponding to three positioning points of a lower cross beam of the automobile front wall plate;
The two clamps (300) are arranged on the base (100) corresponding to the two fixing pins (200) and used for clamping a positioning point A and a positioning point B corresponding to a first connecting plate of the lower cross beam of the automobile front wall plate; and
The telescopic pressing mechanism (400) comprises an oil cylinder (410), a connecting block (420) and a pressing strip (430); the oil cylinder (400) is arranged on the base (100) along the length direction of the cavity of the lower cross beam of the front wall plate of the automobile; one end of the pressing strip (430) is connected with the output end of the oil cylinder (410) through a connecting block (420), and the pressing strip (430) is arranged in parallel with the oil cylinder (410);
The oil cylinder (410) drives the pressing strip (430) to extend into a cavity of the lower cross beam of the front wall plate of the automobile through the connecting block (420), and the other end of the pressing strip (430) and the corresponding fixing pin (200) clamp a C positioning point of the lower cross beam of the front wall plate of the automobile.
2. The special fixture for the lower cross beam of the automobile front wall panel according to claim 1, characterized in that: the telescopic pressing mechanism further comprises a clamp (300); the clamp (300) is arranged on the base (100) and arranged on one side of the pressing strip (430) and used for pressing the pressing strip (430).
3. the special fixture for the lower cross beam of the automobile front wall panel according to claim 1, characterized in that: also comprises a plurality of hydraulic floating pins (500); and the plurality of hydraulic floating pins (500) are arranged on the base (100) and are arranged below the corresponding lower cross beam of the automobile front wall plate and the corresponding pressing strip.
4. the special fixture for the lower cross beam of the automobile front wall panel according to claim 3, wherein: also comprises a plurality of clamps (300); the plurality of clamps (300) are arranged on the base (100), wherein two clamps (300) are used for clamping the edge of the upper side face of the lower cross beam of the automobile front wall panel; the remaining grippers (300) cooperate with a plurality of corresponding hydraulic floating pins (500) to grip the first connector plate.
5. The special fixture for the lower cross beam of the automobile front wall panel according to claim 1, characterized in that: also comprises two guide blocks (600); two guide blocks (600) are arranged on the base (100) corresponding to two ends of a first connecting plate of a lower cross beam of the automobile front wall plate.
6. the special clamp for the lower cross beam of the automobile front wall panel according to any one of claims 1 to 5, characterized in that: further comprising a rotating platform (700); two ends of the base (100) are fixedly connected with two ends of the rotating platform (700); the rotating platform (700) can drive the base (100) to rotate.
7. The special fixture for the lower cross beam of the automobile front wall panel according to claim 6, wherein: the clamp (300) is a hydraulic clamp.
8. The special fixture for the lower cross beam of the automobile front wall panel according to claim 6, wherein: the base (100) is provided with a plurality of lifting lugs (110).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910978227.6A CN110539191B (en) | 2019-10-15 | 2019-10-15 | Special fixture for lower beam of automobile front wall plate |
Applications Claiming Priority (1)
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CN201910978227.6A CN110539191B (en) | 2019-10-15 | 2019-10-15 | Special fixture for lower beam of automobile front wall plate |
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CN110539191A true CN110539191A (en) | 2019-12-06 |
CN110539191B CN110539191B (en) | 2024-08-16 |
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CN201910978227.6A Active CN110539191B (en) | 2019-10-15 | 2019-10-15 | Special fixture for lower beam of automobile front wall plate |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110977558A (en) * | 2019-12-26 | 2020-04-10 | 浙江博秦精密工业有限公司 | Large-scale product processing clamping device |
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JP2005319969A (en) * | 2004-05-11 | 2005-11-17 | Toyota Motor Corp | Welding auxiliary device of chassis frame |
CN203599911U (en) * | 2013-11-29 | 2014-05-21 | 杭州杭机数控机床有限公司 | Special tool clamp for processing automobile beam assembly |
CN204893517U (en) * | 2015-08-27 | 2015-12-23 | 吉林省吉通机械制造有限责任公司 | Special hydraulically operated fixture of auto wheel support |
CN105921670A (en) * | 2016-06-24 | 2016-09-07 | 合肥华瑞汽车零部件有限公司 | Hydraumatic clamping and positioning rivet connection work fixture of automobile crossbeam assembly |
CN206648556U (en) * | 2017-04-21 | 2017-11-17 | 吉林弘凯专用车制造有限公司 | A kind of vehicle beam connecting plate cubing |
CN207077363U (en) * | 2017-08-01 | 2018-03-09 | 广州法雷奥发动机冷却有限公司 | A kind of chucking device for the assembling of front-end module riveted plating |
CN109530802A (en) * | 2018-12-21 | 2019-03-29 | 威斯卡特工业(中国)有限公司 | A kind of hydraulic cutting groove jig, numerical control band sawing machine and its technics of slot |
CN210878739U (en) * | 2019-10-15 | 2020-06-30 | 台山市金桥铝型材厂有限公司 | Special fixture for lower cross beam of automobile front wall plate |
-
2019
- 2019-10-15 CN CN201910978227.6A patent/CN110539191B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005319969A (en) * | 2004-05-11 | 2005-11-17 | Toyota Motor Corp | Welding auxiliary device of chassis frame |
CN203599911U (en) * | 2013-11-29 | 2014-05-21 | 杭州杭机数控机床有限公司 | Special tool clamp for processing automobile beam assembly |
CN204893517U (en) * | 2015-08-27 | 2015-12-23 | 吉林省吉通机械制造有限责任公司 | Special hydraulically operated fixture of auto wheel support |
CN105921670A (en) * | 2016-06-24 | 2016-09-07 | 合肥华瑞汽车零部件有限公司 | Hydraumatic clamping and positioning rivet connection work fixture of automobile crossbeam assembly |
CN206648556U (en) * | 2017-04-21 | 2017-11-17 | 吉林弘凯专用车制造有限公司 | A kind of vehicle beam connecting plate cubing |
CN207077363U (en) * | 2017-08-01 | 2018-03-09 | 广州法雷奥发动机冷却有限公司 | A kind of chucking device for the assembling of front-end module riveted plating |
CN109530802A (en) * | 2018-12-21 | 2019-03-29 | 威斯卡特工业(中国)有限公司 | A kind of hydraulic cutting groove jig, numerical control band sawing machine and its technics of slot |
CN210878739U (en) * | 2019-10-15 | 2020-06-30 | 台山市金桥铝型材厂有限公司 | Special fixture for lower cross beam of automobile front wall plate |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110977558A (en) * | 2019-12-26 | 2020-04-10 | 浙江博秦精密工业有限公司 | Large-scale product processing clamping device |
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