CN111992598A - Arc bending device and arc bending method for polygonal plate - Google Patents
Arc bending device and arc bending method for polygonal plate Download PDFInfo
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- CN111992598A CN111992598A CN202010699327.8A CN202010699327A CN111992598A CN 111992598 A CN111992598 A CN 111992598A CN 202010699327 A CN202010699327 A CN 202010699327A CN 111992598 A CN111992598 A CN 111992598A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
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Abstract
The application relates to an arc bending device and an arc bending method for a polygonal plate, which comprise a workbench, wherein a limiting plate is arranged on the workbench, and a channel for a workpiece to pass through is formed between the limiting plate and the upper surface of the workbench; the pressure-bearing body is arranged on the surface of one side of the workbench, and is provided with a curved surface which is tangent to the upper surface of the workbench; the two groups of guide rails are respectively fixed on the workbench and positioned at two sides of the pressure-bearing body, guide holes are formed in the guide rails, and the radian of each guide hole is consistent with that of the curved surface; the rotating shafts are arranged on the two groups of guide rails, and two ends of each rotating shaft respectively penetrate through the guide holes; the compression roller is arranged on the rotating shaft and is coaxially connected with the rotating shaft, the compression roller is positioned between the two groups of guide rails, and a gap for a workpiece to pass through is formed between the compression roller and the curved surface; and the driving device controls the rotating shaft to slide along the guide hole, and the side edge of the workpiece is rolled and molded. The application has the effects of high processing efficiency and high processing precision.
Description
Technical Field
The application relates to the technical field of production and processing of polygonal plates, in particular to an arc bending device and an arc bending method for a polygonal plate.
Background
The atrium is a non-commercial open space in a commercial square, and the suspended wall of the atrium cornice is formed by combining polygonal aluminum plates so as to enhance the aesthetic property of the building.
Referring to the attached drawing 1, in the construction process, firstly, a keel is installed on a vertical wall of an atrium, then a polygonal plate is fixedly installed on the keel, in order to ensure that after the polygonal plate is installed, the upper edge and the lower edge of the polygonal plate can be connected with the upper surface and the lower surface of an eaves mouth, meanwhile, the attractiveness is enhanced, and in the machining process of the polygonal plate, the side edges of the polygonal plate, which are close to the upper eaves mouth and the lower eaves mouth of the atrium, need to be subjected.
In the related art, the arc bending process of the polygonal plate includes heating the edge of an aluminum plate, placing the aluminum plate on a mold, and slowly beating the aluminum plate with a hammer to form the polygonal plate. The inventor finds that when the arc bending processing is carried out in the mode, the processing period is long, the accuracy of the arc surface after processing and forming is insufficient, and the phenomenon of unevenness exists.
Disclosure of Invention
In order to shorten the processing cycle of polygon plate, improve the curved arc precision, this application adopts following technical scheme:
in a first aspect, the present application provides an arc bending apparatus for polygonal plate, which adopts the following technical scheme:
an arc bending device for polygonal plate comprises
The worktable is provided with a limiting plate, and a channel for a workpiece to pass through is formed between the limiting plate and the upper surface of the worktable;
the pressure-bearing body is arranged on the surface of one side of the workbench, and is provided with a curved surface which is tangent to the upper surface of the workbench;
the two groups of guide rails are respectively fixed on the workbench and positioned at two sides of the pressure-bearing body, guide holes are formed in the guide rails, and the radian of each guide hole is consistent with that of the curved surface;
the rotating shafts are arranged on the two groups of guide rails, and two ends of each rotating shaft respectively penetrate through the guide holes;
the compression roller is arranged on the rotating shaft and is coaxially connected with the rotating shaft, the compression roller is positioned between the two groups of guide rails, and a gap for a workpiece to pass through is formed between the compression roller and the curved surface; and
and the driving device controls the rotating shaft to slide along the guide hole, and the side edge of the workpiece is rolled and molded.
By adopting the technical scheme, when the arc bending work is carried out, the polygonal plate moves along the upper surface of the workbench, passes through the limiting plate and finally passes through the compression roller; the initial position of the press roll is arranged at the upper end of the guide hole, the curved surface, the tangent line of the upper surface of the workbench and the axis of the press roll are in the same vertical plane, and the length of the polygonal plate extending out of the workbench is the part to be bent; after the polygonal plate is fixed in position, the driving device controls the rotating shaft to slide along the guide hole, meanwhile, the compression roller moves along with the rotating shaft, due to the fact that the limiting plate limits the jumping of the polygonal plate in the vertical direction, when the compression roller moves downwards along with the polygonal plate, one end of the polygonal plate is bent into an arc shape, and the radian of the arc portion formed by bending is consistent with that of the curved surface. Through the cooperation jointly of compression roller and curved surface, become fixed shape with polygonal plate bending type, whole bending process is simple, uses the radian of curved surface as the mould moreover, has effectively guaranteed the camber precision.
Preferably, the press roller is rotatably connected with the rotating shaft.
Through adopting above-mentioned technical scheme, the compression roller can be rotated in pivot relatively, and then the compression roller can roll along the surface of polygonal plate, has reduced the frictional force between compression roller and the polygonal plate on the one hand, and the removal of compression roller is more smooth and easy, and on the other hand is when reducing frictional force, has also avoided the compression roller to cause the mar to the polygonal plate surface, effectively protects the polygonal plate after the shaping.
Preferably, the driving device comprises two sets of hydraulic cylinders;
the bottom of the hydraulic cylinder is hinged to the bottom of the workbench, the top end of a piston rod of the hydraulic cylinder is hinged to two end portions of the rotating shaft respectively, and the rotating shaft is driven to slide along the guide hole when the piston rod of the hydraulic cylinder moves.
By adopting the technical scheme, when the piston rod of the hydraulic cylinder retracts, the rotating shaft and the press roller are pulled to move downwards, and the polygonal plate is rolled and molded; when the piston rod of the hydraulic cylinder extends out, the rotating shaft is pushed to slide to the upper end of the guide rail along the guide hole. The compression roller is controlled to slide along the guide hole through the extension of the piston rod of the hydraulic cylinder, the structure is simple, and the action process is rapid.
Preferably, the driving device comprises a main shaft rotationally connected to the workbench, a servo motor fixed on the surface of one side of the workbench, and a connecting rod fixed between the rotating shaft and the main shaft;
and an output shaft of the servo motor is connected with the main shaft.
By adopting the technical scheme, when the servo motor controls the main shaft to rotate, the connecting rod is driven to swing around the main shaft, when the connecting rod swings downwards, the pressing roller moves downwards to roll the polygonal plate, when the servo motor rotates reversely, the connecting rod swings upwards, and the pressing roller moves to the upper end of the guide rail again to realize resetting.
Preferably, the number of the connecting rods is two, and the connecting rods are respectively and fixedly connected between the end part of the rotating shaft and the main shaft.
Through adopting above-mentioned technical scheme, two connecting rods are connected between pivot and main shaft, all can control the pivot motion, and the atress distributes more evenly, and the motion of pivot and compression roller is more steady.
Preferably, a top frame is fixed on the workbench, a first air cylinder is arranged on the lower surface of the top frame, and a positioning plate is arranged at the top end of a piston rod of the first air cylinder;
the pressure bearing body is positioned between the workbench and the positioning plate, and the positioning plate is vertical to the upper surface of the workbench.
Through adopting above-mentioned technical scheme, before the camber, at first the piston rod of first cylinder stretches out downwards, and the polygon board stretches out the back from the below of compression roller, and its tip supports on the locating plate, and through the injecing of locating plate, not only can the length that the workstation was stretched out to the polygon board of short-term determination, the length of waiting to buckle promptly guarantees moreover that the length of buckling at every turn is unanimous, has improved the precision of buckling.
Preferably, a second air cylinder is further fixed on the lower surface of the top frame, and a pressing plate is arranged at the top end of a piston rod of the second air cylinder;
the pressing plate is located above the workbench and arranged on one side of the limiting plate, and the pressing plate is parallel to the upper surface of the workbench.
By adopting the technical scheme, in the process of rolling the polygonal plate by the press roller, the downward force of the polygonal plate can be given, and the horizontal component force can be applied to the polygonal plate, and the limiting plate can only limit one end of the polygonal plate to warp upwards.
Preferably, a flexible pad is arranged on the lower surface of the pressure plate.
Through adopting above-mentioned technical scheme, flexible pad supports and presses on the polygonal plate, has increased the frictional force between clamp plate and the polygonal plate, and it is stronger to compress tightly the effect, and the setting of flexible pad simultaneously also can avoid the clamp plate to cause the mar to the surface of polygonal plate.
In a second aspect, the present application provides a method for bending an arc of a polygonal plate, where the above-mentioned arc bending apparatus for a polygonal plate is adopted, and includes the following steps:
a first cylinder piston rod extends downwards, and a positioning plate moves downwards to the front of the press roller;
moving the workpiece to be attached to the upper surface of the workbench, and penetrating the workpiece from the lower parts of the limiting plate and the pressing roller until the end surface of the workpiece is abutted against the locating plate;
the piston rod of the second cylinder extends downwards, and the pressing plate tightly supports the tail end of the workpiece on the workbench;
the driving device controls the rotating shaft and the pressing roller to move downwards so as to roll and form the workpiece; and
the driving device controls the rotating shaft and the pressing roller to move reversely, the piston rods of the first air cylinder and the second air cylinder retract upwards, and the formed workpiece is drawn out from the lower portions of the limiting plate and the pressing roller.
To sum up, the application comprises the following beneficial technical effects:
through the cooperation jointly of compression roller and curved surface, drive arrangement control compression roller rotates, forms fixed shape with the roll-in of multilateral shaped plate, and whole bended-arc course of working is simple, uses the radian of curved surface as the mould moreover, has effectively guaranteed the bended-arc precision.
Drawings
Fig. 1 is a schematic structural view of a polygonal plate.
Fig. 2 is a schematic overall structure diagram according to an embodiment of the present application.
Fig. 3 is a cross-sectional view of fig. 1.
Fig. 4 is a schematic view of the overall structure according to another embodiment of the present application.
Fig. 5 is a front view of fig. 4.
In the figure, 1, a workbench; 11. a limiting plate; 12. a top frame; 13. a base plate; 2. a pressure-bearing body; 21. a curved surface; 3. a guide rail; 31. a guide hole; 32. a rotating shaft; 33. a compression roller; 4. a drive device; 41. a hydraulic cylinder; 42. a main shaft; 43. a servo motor; 44. a connecting rod; 51. a first cylinder; 52. positioning a plate; 61. a second cylinder; 62. pressing a plate; 63. a flexible mat.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 2, the arc bending apparatus for a polygonal plate disclosed in the embodiment of the present application includes a table 1, a pressure-bearing body 2, a guide rail 3, a rotating shaft 32, a pressing roller 33, and a driving device 4.
Referring to fig. 2 and 3, the entire work table 1 has a square structure; the pressure-bearing body 2 is fixed on the upper portion of one side surface of the workbench 1, a curved surface 21 is formed on the pressure-bearing body 2 in a machining mode, the curved surface 21 is tangent to the upper surface of the workbench 1, the curved surface 21 is a quarter arc surface in the embodiment, and the radian of the curved surface 21 can be machined according to actual conditions in production and machining.
Two groups of guide rails 3 are arranged and fixedly connected with the workbench 1, and the two groups of guide rails 3 are respectively positioned at two sides of the pressure-bearing body 2 in the length direction; the guide rail 3 is provided with a guide hole 31 with the radian consistent with that of the curved surface 21, and the guide hole 31 is positioned above the curved surface 21; the rotating shaft 32 is arranged on the two groups of guide rails 3, two ends of the rotating shaft 32 respectively penetrate through the guide holes 31 towards two sides, the press roller 33 is coaxially connected with the rotating shaft 32, end faces of two sides of the press roller 33 are respectively and smoothly attached to side surfaces of the guide rails 3, and a gap for the polygonal plate to penetrate through is formed between the peripheral surface of the press roller 33 and the curved surface 21. The rotating shaft 32 can slide along the guide hole 31 and drives the pressing roller 33 to move along the arc-shaped track of the guide hole 31.
The workbench 1 is further provided with a limiting plate 11, two side edges of the limiting plate 11 are bent downwards and fixedly connected with the upper surface of the workbench 1, and a channel for the polygonal plate to pass through is formed between the limiting plate 11 and the upper surface of the workbench 1.
When the arc bending work is carried out, the polygonal plate moves along the upper surface of the workbench 1, passes through the limiting plate 11 and finally passes through the pressing roller 33; it should be noted that the initial position of the press roll 33 is at the upper end of the guide hole 31, the curved surface 21, the tangent line of the upper surface of the workbench 1 and the axis of the press roll 33 are in the same vertical plane, and the length of the polygonal plate extending out of the workbench 1 is the part to be bent; after the polygonal plate is fixed in position, the driving device 4 controls the rotating shaft 32 to slide along the guide hole 31, meanwhile, the pressing roller 33 moves along with the rotating shaft 32, the limiting plate 11 limits the jumping of the polygonal plate in the vertical direction, when the pressing roller 33 moves downwards along the polygonal plate, one end of the polygonal plate is bent into an arc shape, and the radian of the arc-shaped part formed by bending is consistent with that of the curved surface 21. Through the cooperation of compression roller 33 and curved surface 21 jointly, become fixed shape with polygonal plate bending type, whole bending process is simple, regards the radian of curved surface 21 as the mould moreover, has effectively guaranteed the bended-arc precision.
Further, the compression roller 33 is rotatably connected with the rotating shaft 32, when the rotating shaft 32 moves, the compression roller 33 can rotate relative to the rotating shaft 32, and then the compression roller 33 can roll along the surface of the polygonal plate, so that the friction force between the compression roller 33 and the polygonal plate is reduced, the compression roller 33 can move more smoothly, and the compression roller 33 can avoid scratches on the surface of the polygonal plate while reducing the friction force, so that the molded polygonal plate is effectively protected.
Referring to fig. 2, the driving device 4 includes two hydraulic cylinders 41, the two hydraulic cylinders 41 are respectively located at two sides of the guide rail 3, a bottom plate 13 extends and is fixed at the bottom of the workbench 1, one end of a cylinder body of the hydraulic cylinder 41 is hinged on the bottom plate 13, and the top end of a piston rod of the hydraulic cylinder 41 is hinged on the end of the rotating shaft 32.
The hydraulic cylinder 41 is arranged obliquely, and when a piston rod of the hydraulic cylinder 41 retracts, the rotating shaft 32 and the press roller 33 are pulled to move downwards to roll and form the polygonal plate; when the piston rod of the hydraulic cylinder 41 extends, the rotating shaft 32 is pushed to slide along the guide hole 31 to the upper end of the guide rail 3. The compression roller 33 slides along the guide hole 31 through the expansion and contraction control of the piston rod of the hydraulic cylinder 41, the structure is simple, and the action process is rapid.
Fixedly connected with roof-rack 12 on workstation 1, roof-rack 12 is located workstation 1 top, and the one end of roof-rack 12 stretches out towards pressure-bearing body 2 one side, and the first cylinder 51 of one end fixedly connected with that roof-rack 12 lower surface is close to pressure-bearing body 2, and first cylinder 51 is vertical state, and first cylinder 51 piston rod stretches out downwards, and is fixed with locating plate 52 on the top of piston rod, and locating plate 52 is perpendicular to the upper surface of workstation 1.
Before the arc is bent, firstly, a piston rod of the first air cylinder 51 extends downwards, after the polygonal plate extends out of the lower portion of the press roller 33, the end portion of the polygonal plate abuts against the positioning plate 52, and through limitation of the positioning plate 52, the length of the polygonal plate extending out of the workbench 1, namely the length to be bent, can be quickly determined, the length of each bending is guaranteed to be consistent, and the bending precision is improved.
The lower surface of the top frame 12 is fixed with a second cylinder 61 at the end opposite to the first cylinder 51, the second cylinder 61 is in a vertical state and is located on one side of the limiting plate 11, a pressing plate 62 is fixedly connected to the top end of a piston rod of the second cylinder 61, and the pressing plate 62 is parallel to the upper surface of the workbench 1. In the process of rolling the polygonal plate by the pressing roller 33, a downward force is applied to the polygonal plate, a horizontal component force is applied to the polygonal plate, and the limiting plate 11 can only limit one end of the polygonal plate to warp upwards, so that before the arc bending action, the piston rod of the second cylinder 61 extends downwards, the pressing plate 62 abuts against the tail end of the polygonal plate, and the polygonal plate cannot move along the horizontal direction in the arc bending action process.
Further, be fixed with flexible pad 63 on the lower surface of clamp plate 62, flexible pad 63 supports and presses on the polygonal plate, has increased the frictional force between clamp plate 62 and the polygonal plate, and it is stronger to compress tightly the effect, and the setting of flexible pad 63 also can avoid clamp plate 62 to cause the mar to the surface of polygonal plate simultaneously.
Referring to fig. 4 and 5, as another embodiment disclosed in the present application, the driving device 4 includes a spindle 42, a servo motor 43, and a link 44. The main shaft 42 is rotatably connected to the workbench 1, and two ends of the main shaft 42 respectively penetrate out of the two side surfaces of the workbench 1; a servo motor 43 is fixedly arranged on one side surface of the workbench 1, and an output shaft of the servo motor 43 is connected with the main shaft 42 and is used for driving the main shaft 42 to rotate; the two connecting rods 44 are respectively connected to two ends of the main shaft 42, specifically, one end of the connecting rod 44 is fixedly connected to the end of the rotating shaft 32, and the other end is fixedly connected to the end of the main shaft 42.
It should be noted that the axis of the main shaft 42 coincides with the center of the curved surface 21, when the servo motor 43 controls the main shaft 42 to rotate, the connecting rod 44 is driven to swing around the main shaft 42, when the connecting rod 44 swings downward, the pressing roller 33 moves downward to roll the polygonal plate, when the servo motor 43 rotates reversely, the connecting rod 44 swings upward, and the pressing roller 33 moves to the upper end of the guide rail 3 again to realize resetting.
The application also discloses a method for bending the polygonal plate, and the device for bending the polygonal plate comprises the following steps:
s101: the first cylinder 51 has its piston rod extended downward and the positioning plate 52 is moved downward to the front of the pressing roller 33.
S102: the workpiece is moved against the upper surface of the table 1, and passes through the lower portions of the stopper plates 11 and the press rollers 33 until the end surface of the workpiece abuts against the positioning plate 52.
S103: the piston rod of the second cylinder 61 extends downwards, and the pressing plate 62 tightly supports the tail end of the workpiece on the workbench 1.
S104: the driving device 4 controls the rotating shaft 32 and the pressing roller 33 to move downwards to roll and form the workpiece.
S105: the driving device 4 controls the rotating shaft 32 and the press roller 33 to move reversely to the upper end of the guide rail 3, the piston rods of the first air cylinder 51 and the second air cylinder 61 retract upwards, and the formed workpiece is drawn out from the lower parts of the limiting plate 11 and the press roller 33.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a curved arc device of polygon plate which characterized in that: comprises that
The device comprises a workbench (1), a limiting plate (11) is arranged on the workbench (1), and a channel for a workpiece to pass through is formed between the limiting plate (11) and the upper surface of the workbench (1);
the pressure-bearing body (2) is arranged on the surface of one side of the workbench (1), a curved surface (21) is arranged on the pressure-bearing body (2), and the curved surface (21) is tangent to the upper surface of the workbench (1);
the two groups of guide rails (3) are respectively fixed on the workbench (1) and positioned on two sides of the pressure-bearing body (2), guide holes (31) are formed in the guide rails (3), and the radian of each guide hole (31) is consistent with that of the curved surface (21);
the rotating shafts (32) are arranged on the two groups of guide rails (3), and two ends of each rotating shaft (32) respectively penetrate through the guide holes (31);
the compression roller (33) is arranged on the rotating shaft (32) and is coaxially connected with the rotating shaft (32), the compression roller (33) is positioned between the two groups of guide rails (3), and a gap for a workpiece to pass through is formed between the compression roller (33) and the curved surface (21); and
and the driving device (4) controls the rotating shaft (32) to slide along the guide hole (31) when the driving device (4) controls the rotating shaft (32) to roll and form the side edge of the workpiece.
2. The arc bending device for polygonal plate according to claim 1, wherein: the press roller (33) is rotatably connected with the rotating shaft (32).
3. The arc bending device for polygonal plate according to claim 1, wherein: the driving device (4) comprises two groups of hydraulic cylinders (41);
the bottom of pneumatic cylinder (41) is articulated with the bottom of workstation (1), the top of pneumatic cylinder (41) piston rod is articulated with the both ends of pivot (32) respectively, when pneumatic cylinder (41) piston rod moved, drive pivot (32) along guiding hole (31) slip.
4. The arc bending device for polygonal plate according to claim 1, wherein: the driving device (4) comprises a main shaft (42) rotatably connected to the workbench (1), a servo motor (43) fixed on one side surface of the workbench (1) and a connecting rod (44) fixed between the rotating shaft (32) and the main shaft (42);
and an output shaft of the servo motor (43) is connected with the main shaft (42).
5. The arc bending device for polygonal plate according to claim 4, wherein: the number of the connecting rods (44) is two, and the connecting rods (44) are respectively and fixedly connected between the end part of the rotating shaft (32) and the main shaft (42).
6. The curved arc device of a polygonal plate according to any one of claims 1 to 5, wherein: a top frame (12) is fixed on the workbench (1), a first air cylinder (51) is arranged on the lower surface of the top frame (12), and a positioning plate (52) is arranged at the top end of a piston rod of the first air cylinder (51);
the pressure-bearing body (2) is positioned between the workbench (1) and the positioning plate (52), and the positioning plate (52) is vertical to the upper surface of the workbench (1).
7. The arc bending device for polygonal plate according to claim 6, wherein: a second air cylinder (61) is further fixed on the lower surface of the top frame (12), and a pressing plate (62) is arranged at the top end of a piston rod of the second air cylinder (61);
the pressing plate (62) is located above the workbench (1) and arranged on one side of the limiting plate (11), and the pressing plate (62) is parallel to the upper surface of the workbench (1).
8. The arc bending device for polygonal plate according to claim 7, wherein: and a flexible pad (63) is arranged on the lower surface of the pressing plate (62).
9. A method for bending an arc of a polygonal plate, which uses the device for bending an arc of a polygonal plate according to any one of claims 1 to 8, wherein: comprises the following steps
A piston rod of the first air cylinder (51) extends downwards, and the positioning plate (52) moves downwards to the front of the press roller (33);
moving the workpiece to be attached to the upper surface of the workbench (1), and enabling the workpiece to penetrate through the limiting plate (11) and the lower part of the press roller (33) until the end surface of the workpiece is abutted against the positioning plate (52);
a piston rod of the second cylinder (61) extends downwards, and the tail end of the workpiece is tightly propped against the workbench (1) by the pressing plate (62);
the driving device (4) controls the rotating shaft (32) and the pressing roller (33) to move downwards to roll and form the workpiece; and
the driving device (4) controls the rotating shaft (32) and the press roll (33) to move reversely, piston rods of the first air cylinder (51) and the second air cylinder (61) retract upwards, and the formed workpiece is drawn out from the lower portions of the limiting plate (11) and the press roll (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699327.8A CN111992598A (en) | 2020-07-20 | 2020-07-20 | Arc bending device and arc bending method for polygonal plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699327.8A CN111992598A (en) | 2020-07-20 | 2020-07-20 | Arc bending device and arc bending method for polygonal plate |
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| CN111992598A true CN111992598A (en) | 2020-11-27 |
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| CN202010699327.8A Pending CN111992598A (en) | 2020-07-20 | 2020-07-20 | Arc bending device and arc bending method for polygonal plate |
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| CN114210782A (en) * | 2021-12-07 | 2022-03-22 | 南通佳饰集成家居有限公司 | Stainless steel cupboard deck plate forming device |
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| CN113523043A (en) * | 2021-07-20 | 2021-10-22 | 中国建筑第八工程局有限公司 | Workpiece bending apparatus and workpiece bending method |
| CN113523043B (en) * | 2021-07-20 | 2022-12-02 | 中国建筑第八工程局有限公司 | Workpiece bending apparatus and workpiece bending method |
| CN114074150A (en) * | 2021-11-15 | 2022-02-22 | 青岛海尔工业智能研究院有限公司 | Wire harness bending tool and wire harness bending method |
| CN114210782A (en) * | 2021-12-07 | 2022-03-22 | 南通佳饰集成家居有限公司 | Stainless steel cupboard deck plate forming device |
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Application publication date: 20201127 |