CN110860588A - Automatic edge folding and pressing equipment for sheet metal shell of inner barrel of water heater and forming method - Google Patents
Automatic edge folding and pressing equipment for sheet metal shell of inner barrel of water heater and forming method Download PDFInfo
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- CN110860588A CN110860588A CN201911062939.XA CN201911062939A CN110860588A CN 110860588 A CN110860588 A CN 110860588A CN 201911062939 A CN201911062939 A CN 201911062939A CN 110860588 A CN110860588 A CN 110860588A
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- roller
- water heater
- pressing
- circle correcting
- plate
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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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- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/14—Recontouring
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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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
Abstract
The invention discloses automatic edge folding and pressing equipment for a sheet metal shell of an inner cylinder of a water heater and a forming method. The plate feeding and distributing mechanism comprises a feeding trolley and a lifting sucker manipulator; the centering mechanism comprises a centering brush table, a servo transfer clamp and at least two sets of centering roller components; the servo shifting clamp comprises two clamps which can slide oppositely or oppositely; the pressing mechanism comprises a pressing machine, two six-axis robots, a transfer clamping jaw and a jacking mechanism; the circle correcting mechanism comprises a telescopic circle correcting center roller, a material taking clamp and a circle correcting assembly. The automatic edge folding and pressing device adopts the process of pressing first and then rounding, can realize the automatic edge folding and pressing of the inner cylinder of the water heater, has high production efficiency, and solves the problem that the automatic production cannot be realized by rolling and then pressing the inner cylinder of the water heater. Meanwhile, the water heater inner barrel can adapt to water heater inner barrels with different diameters and length specifications, the universality is strong, the production cost is saved, and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of automatic bending and pressing of a sheet metal production line, in particular to automatic edge folding and pressing equipment and a forming method of a sheet metal shell of an inner barrel of a water heater.
Background
At present, the cylinder body of the electric water heater is molded as follows: the plate is firstly coiled by a coiling machine and then is pressed and formed by a pressing machine. The forming method can not realize automatic production, has low production efficiency and specifically comprises the following steps:
1. several manual forces are required to place the sheet in the sheet placement groove in the edge rolling machine. The whole forming process is time-consuming and labor-consuming, and the production efficiency is lower.
2. One rolling machine can only adapt to the inner cylinder of the water heater with one specification diameter. However, the inner cylinder of the water heater has various diameter specifications, so that a plurality of rolling machines with different models are needed, which brings inconvenience to the generation and wastes the capital investment. In addition, the different diameters of the water heater cylinders bring great difficulty to the press-fit forming positioning, so that the final product is not ideal.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides automatic edge folding and pressing equipment and a forming method for a sheet metal shell of an inner cylinder of a water heater. Meanwhile, the water heater inner barrel can adapt to water heater inner barrels with different diameters and length specifications, the universality is strong, the production cost is saved, and the operation is convenient.
In order to solve the technical problems, the invention adopts the technical scheme that:
an automatic edge folding and pressing device for a sheet metal shell of an inner barrel of a water heater comprises a plate feeding and distributing mechanism, a centering mechanism, a pressing mechanism and a circle correcting mechanism.
The plate feeding and distributing mechanism comprises a feeding trolley and a lifting sucker manipulator. The feeding trolley is used for stacking and placing water heater inner barrel plates, the lifting sucker manipulator can slide back and forth along the line direction, and a plurality of suckers are arranged at the bottom of the lifting sucker manipulator.
The centering mechanism comprises a centering brush table, a servo shifting clamp and at least two sets of centering roller components.
The centering brush platform is arranged on the line body at the downstream of the feeding trolley.
Each group of centering roller assemblies respectively comprise two centering rollers which can slide oppositely or oppositely, and the sliding direction of the centering rollers is perpendicular to the line body.
The servo shifting clamp comprises two clamps which can slide oppositely or oppositely, and the sliding direction of the clamps is parallel to the line body. The clamp is provided with an upper clamping plate and a lower clamping plate which can be lifted and lowered in height.
The pressing mechanism comprises a pressing machine, two six-axis robots, a transfer clamping jaw and a jacking mechanism.
The jacking mechanism is arranged on a line body at the downstream of the centering brush table and comprises a fixed frame and lifting frames symmetrically arranged at two sides of the fixed frame.
The pressing machine is arranged right above the fixing frame and comprises a pressing groove roller and a pressing machine head. The position of the pressing groove roller is fixed, and the pressing machine head is positioned right above the pressing groove roller and can be lifted.
Two six-axis robots are positioned at two sides of the fixed frame, and a bowl part of each six-axis robot is provided with a transfer clamping jaw.
The circle correcting mechanism comprises a telescopic circle correcting center roller, a material taking clamp and a circle correcting assembly.
The telescopic circle correcting center roller and the pressing groove roller are coaxially arranged, can slide or stretch along the axial direction and can rotate around the axis of the telescopic circle correcting center roller.
The material taking clamp is arranged on the outer side of the pressing groove roller and can slide back and forth along the direction parallel to the telescopic circle correcting center roller.
The circle correcting assembly is located right above the telescopic circle correcting central roller and can be lifted and lowered.
The circle correcting component comprises a main circle correcting roller and auxiliary circle correcting rollers symmetrically arranged on two sides of the main circle correcting roller. The height of the auxiliary rounding roller is lower than that of the main rounding roller.
Assuming that the diameter of the telescopic circle correcting center roller is D1, the diameter of the auxiliary circle correcting roller is D2, the diameter of the main circle correcting roller is D3, the horizontal distance from the main circle correcting roller to the auxiliary circle correcting roller is L1, and the vertical distance from the main circle correcting roller to the auxiliary circle correcting roller is L2, D1= (2-3) D3, D2= (1-2) D3, L1= (2.1-3.2) D2, and L2= (0.3-0.8) D2 are satisfied.
The circle correcting mechanism further comprises a material receiving lifting platform, the material receiving lifting platform is arranged under the telescopic circle correcting central roller, and the height of the material receiving lifting platform can be increased or decreased. The top of the material receiving lifting platform is arc-shaped or V-shaped.
The transferring clamping jaw comprises a plate clamping cavity, a pressing cylinder and a locking cylinder. The opening of one side towards school circle mechanism in panel centre gripping chamber, the cylinder that compresses tightly is laid in the panel centre gripping chamber outside, and the compression bar that compresses tightly the cylinder can stretch into the panel centre gripping chamber in, and the locking cylinder setting is in the opening side in panel centre gripping chamber, and the locking lever of locking cylinder can open and close of open-ended in the control panel centre gripping chamber by flexible.
Two adjacent sides of the feeding trolley are respectively provided with a positioning side plate and a magnet separating device. The magnet separating device comprises at least one magnet separating plate, and a plurality of magnets are sequentially arranged in the magnet separating plate from top to bottom.
An automatic edge folding and pressing forming method for a sheet metal shell of an inner cylinder of a water heater comprises the following steps.
Step 1, feeding plates: manually or automatically stacking the water heater inner cylinder plates on the feeding trolley.
Step 2, plate centering: and the lifting sucker manipulator sucks and transfers the water heater inner cylinder plate on the feeding trolley to the set position of the centering brush table. Two centering rollers in the centering roller assembly synchronously slide in opposite directions, and the water heater inner barrel plate placed on the centering brush table is centered in the width direction.
And 3, pressing, comprising the following steps:
Step 32, grabbing: the lifting frames positioned on two sides of the fixing frame in the jacking mechanism are lowered in height, the two six-axis robots work, the shifting clamping jaws on the six-axis robots are respectively oppositely placed on two wide side edges of the water heater inner cylinder plate on the fixing frame to be clamped, and two folded edges are reserved.
Step 33, folding the edges: two six robots move up to the bottom of the pressing groove roller of the pressing machine, and the flat water heater inner cylinder plate is folded into an oval cylinder.
Step 34, pressing: the height of the stitching head in the stitching machine is lowered to stitch the hems of the elliptical cylinder in step 33 together. Then the stitching machine head is reset.
And 4, rounding, comprising the following steps:
Still include step 5, the barrel unloading: the circle correcting assembly rises in place, the material receiving lifting platform rises in height, the barrel is supported, the telescopic circle correcting central roller returns along the axial direction to reset, the material receiving lifting platform supports the barrel to fall in place, and the barrel is taken out.
In step 33, when the two six-axis robots bend towards the top of the pressing groove roller, the lifting frame in the lifting mechanism rises to form a V shape, and the bottom of the bent water heater inner cylinder plate is supported. And 34, resetting the lifting frame after the pressing is finished.
In the step 1, two adjacent side edges of the feeding trolley are respectively provided with a positioning side plate and a magnet separating device, when the water heater inner cylinder plate is positioned and blocked, the magnet separating device separates the water heater inner cylinder plate on the feeding trolley according to different magnetic forces of the built-in magnets at different heights, and adhesion of the two adjacent water heater inner cylinder plates is avoided.
The invention has the following beneficial effects:
1. the process method of pressing and rounding is adopted, so that automatic edge folding, pressing and forming of the inner cylinder of the water heater can be realized, the automation degree is high, and the production efficiency is high.
2. The invention can adapt to the inner cylinders of water heaters with different diameters and length specifications, has strong universality, saves the production cost and is convenient to operate.
Drawings
Fig. 1 shows a three-dimensional structure diagram of an automatic edge folding and pressing device for a sheet metal shell of an inner cylinder of a water heater.
Fig. 2 shows a schematic structure of the servo transfer clamp.
Fig. 3 shows a schematic structural view of the centering roller.
Fig. 4 shows a schematic structural view of the pressing device.
Fig. 5 shows a schematic view of the structure of the transfer jaw.
Figure 6 shows a front view of the roundness correction mechanism.
FIG. 7 is a schematic diagram showing the positional relationship among the telescopic roundness correction center roller, the main roundness correction roller, and the auxiliary roundness correction roller in the roundness correction mechanism.
Among them are:
10. a plate feeding and distributing mechanism;
11. a feeding guide rail; 12. a feeding trolley; 121. positioning the side plate; 122. a magnet split plate; 13. a lifting sucker manipulator; 131. a suction cup; 14. a feeding guide rail;
20. a wire body;
30. centering the brush table; 31. a brush table;
40. servo shifting clamp;
41. a left clamp; 411. an upper splint; 412. an upper clamping plate lifting cylinder; 413. a lower splint; 414. a lower clamping plate lifting cylinder; 42. a right clamp; 43. a clamp transfer guide rail;
50. centering the roller assembly; 51. a front centering roller; 511. a trapezoidal ring groove; 52. rear centering rollers; 53. centering the guide rail;
60. a pressing mechanism;
61. pressing a machine head; 62. a press-fit grooved roll; 63. an upstream six-axis robot; 631. installing a vertical frame; 64. a downstream six-axis robot;
65. transferring a clamping jaw; 651. fixing the clamping plate; 652. installing a clamping plate; 653. a side plate; 654. a panel clamping cavity; 655. a pressing cylinder; 656. a locking cylinder;
66. a jacking mechanism; 661. a fixed mount; 662. a jacking frame;
67. a pressing device; 671. a pneumatic platen; 672. a pneumatic cylinder; 673. pressing down the fixed plate; 674. compressing the guide rail;
70. a circle correcting mechanism;
71. rounding the guide rail; 72. a material receiving lifting platform; 73. a telescopic circle correcting center roller; 731. a sliding upright post; 74. taking a material clamp; 741. a material taking slide rail; 75. a roundness correction assembly; 751. a lower pressing plate; 752. pressing down the mounting rack; 753. a main rounding roller; 754. auxiliary rounding rollers;
80. a water heater inner cylinder plate; 81. and (4) a cylinder body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
As shown in fig. 1, an automatic edge folding and pressing device for a sheet metal shell of an inner cylinder of a water heater comprises a plate feeding and distributing mechanism 10, a centering mechanism, a pressing mechanism 60 and a rounding mechanism 70.
The plate feeding and distributing mechanism preferably comprises a feeding guide rail 11, a feeding trolley 12, a lifting sucker manipulator 13 and a feeding guide rail 14.
The feeding guide rail is preferably vertically arranged at the upstream end of the line body 20, and the feeding trolley slides along the feeding guide rail.
The feeding trolley is used for stacking and placing the water heater inner tube plates 80, and two adjacent sides of the feeding trolley are respectively provided with a positioning side plate 121 and a magnet separating device. The magnet separating device comprises at least one magnet separating plate 122, preferably comprises a plurality of magnet separating plates which are parallel to each other, and a plurality of magnets are preferably arranged in the magnet separating plates from top to bottom in sequence.
The feeding guide rail is parallel to the line body, the lifting sucker manipulator slides back and forth along the feeding guide rail (also in the line body direction), the bottom of the lifting sucker manipulator is provided with a plurality of suckers 131, and each sucker can preferably shake vertically to realize shaking and material distribution.
The centering mechanism comprises a centering brush table 30, a servo transfer clamp 40 and at least two sets of centering roller assemblies 50.
The centering brush platform is arranged on a line body at the downstream of the feeding trolley, preferably comprises an even number of brush platforms 31, and each brush platform is preferably provided with a brush layer.
The centering roller assemblies 50 are two or more groups, and are specifically arranged according to the length of the water heater inner barrel plate.
Each set of centering roller assembly preferably comprises two centering rollers capable of sliding oppositely or oppositely, namely a front centering roller 51 and a rear centering roller 52, each centering roller slides along a centering guide rail 53, and the centering guide rails are located below the line body and perpendicular to the line body. As shown in FIG. 3, each centering roller preferably has a trapezoidal ring groove 511 that mates with the water heater inner tube sheet, accommodating the centering of water heater inner tube sheets of different thicknesses.
As shown in fig. 2, the servo transfer gripper includes two grippers capable of sliding toward each other or away from each other, namely a left gripper 41 and a right gripper 42.
The clamp moves along the clamp transferring guide rail 43, the clamp transferring guide rail 43 is parallel to the line body, preferably located below the line body above the centering guide rail, and is arranged in a cross shape with the centering guide rail.
Each of the clamps includes an upper plate 411, an upper plate lifting cylinder 412, a lower plate 413, and a lower plate lifting cylinder 414. The upper clamping plate 411 preferably achieves height elevation under the action of an upper clamping plate elevation cylinder 412, and the lower clamping plate 413 preferably achieves height elevation under the action of a lower clamping plate elevation cylinder 414.
The pressing mechanism comprises a pressing machine, two six-axis robots, a transfer clamping jaw 65, a jacking mechanism 66 and a pressing device 67.
The jacking mechanism is arranged on a line body at the downstream of the centering brush table and comprises a fixed frame 661 and lifting frames 662 symmetrically arranged at two sides of the fixed frame.
The compressing device is arranged on one side of the fixing frame and can slide along the direction vertical to the line body, and as shown in fig. 4, the compressing device 67 comprises a pneumatic pressure plate 671, a pneumatic cylinder 672, a lower fixing plate 673 and a compressing guide rail 674.
The pressing guide rail 674 is arranged on one side of the fixing frame in parallel, and the pneumatic pressing plate 671 can be driven by a connecting rod of the pneumatic cylinder to realize clamping. The pressing claw consisting of the pneumatic pressing plate and the lower fixing plate can press the wide side (namely a short side) of the water heater inner cylinder plate.
The pressing machine is arranged right above the fixed frame and comprises a pressing groove roller 62 and a pressing machine head 61. The press grooved roll is fixed in position, one end is a fixed end and is preferably mounted on the mounting upright 631, the other end is an open end, and a rotatable grooved roll bracket, not shown, is preferably arranged below the open end. When the pressing is carried out, the groove roller bracket supports the opening end of the pressing groove roller, so that the pressing is accurate and stable, and after the pressing is completed, the groove roller bracket rotates, so that the elliptical cylinder is convenient to transfer.
The pressing machine head is positioned right above the pressing groove roller and can be lifted and lowered.
Two six-axis robots are located on either side of the mounting frame, an upstream six-axis robot 63, preferably mounted on a gantry type mounting post 631, and a downstream six-axis robot 64, preferably mounted on a subsequent roundness correction rail.
The bowl of each six-axis robot is preferably fitted with one transfer jaw 65 via a jaw mounting flange.
As shown in fig. 5, each transfer jaw includes a sheet gripper cavity 654, a hold down cylinder 655 and a lock cylinder 656.
The plate clamping cavity is preferably rectangular and is opened towards one side of the rounding mechanism, the plate clamping cavity is mainly formed by enclosing a fixed clamping plate 651, an installation clamping plate 652 and a side plate 653, the six-axis robot, the pressing air cylinder 655 and the locking air cylinder 656 are preferably installed on the installation clamping plate 652, and the pressing air cylinder 655 is arranged along the length direction of the installation clamping plate. When the six-axis robot grabs, the fixed clamping plate faces upwards, so that the edge folding of the water heater inner barrel plate is not influenced. The fixed splint is preferably a profiled polyurethane plate.
The compressing cylinder is arranged outside the plate clamping cavity, the compressing rod of the compressing cylinder can stretch into the plate clamping cavity, the locking cylinder is arranged on the opening side of the plate clamping cavity, and the locking rod of the locking cylinder can telescopically control the opening of the plate clamping cavity to be opened and closed.
As shown in fig. 6 and 7, the rounding mechanism includes a rounding guide rail 71, a material receiving lifting table 72, a telescopic rounding center roller 73, a material taking clamp 74 and a rounding assembly 75.
The telescopic circle correcting center roller and the pressing groove roller are coaxially arranged, can slide or stretch along the axial direction, and can rotate around the axis of the telescopic circle correcting center roller under the driving of the servo motor. The flexible school circle center roll is preferred to be installed on the stand 731 that slides, and the stand that slides can slide along the school circle guide rail, and the preferred perpendicular to line body of school circle guide rail parallels with the pressfitting grooved roll.
The material taking clamp is arranged on the outer side of the pressing groove roller and can slide back and forth along the direction parallel to the telescopic circle correcting center roller. Also get the material clamp and slide along getting material slide rail 741, get the material guide rail setting and just can be along the direction that is on a parallel with flexible school circle center roll in the laminating groove roller outside. The structure of the material taking clamp can refer to a clamp or a pressing device and the like.
The circle correcting assembly is located right above the telescopic circle correcting central roller and can be lifted and lowered.
The rounding assembly comprises a lower pressing plate 751, a lower pressing plate mounting rack 752, a main rounding roller 753 and auxiliary rounding rollers 754 symmetrically arranged on two sides of the main rounding roller. The auxiliary circle correcting roller is lower than the main circle correcting roller in height, the main circle correcting roller is a driving roller, and the auxiliary circle correcting roller is a driven roller.
The lower press plate 751 is preferably mounted on a lower press plate mounting frame 752 to be vertically movable, and the main rounding roller 753 and the auxiliary rounding roller 754 are mounted on the bottom of the lower press plate.
As shown in fig. 7, assuming that the diameter of the telescopic circle-correcting center roller is D1, the diameter of the auxiliary circle-correcting roller is D2, the diameter of the main circle-correcting roller is D3, the horizontal distance from the main circle-correcting roller to the auxiliary circle-correcting roller is L1, and the vertical distance from the main circle-correcting roller to the auxiliary circle-correcting roller is L2, it is preferable to satisfy D1= (2 to 3) D3, D2= (1 to 2) D3, L1= (2.1 to 3.2) D2, and L2= (0.3 to 0.8) D2.
Connect the material elevating platform to set up under flexible school circle center roller, and highly can go up and down. The top of the material receiving lifting platform is arc-shaped or V-shaped, and a brush layer is preferably arranged at the top of the material receiving lifting platform.
An automatic edge folding and pressing forming method for a sheet metal shell of an inner cylinder of a water heater comprises the following steps.
Step 1, feeding plates: manually or automatically stacking the water heater inner cylinder plates on the feeding trolley.
Two adjacent sides of the feeding trolley are respectively provided with a positioning side plate and a magnet separating device, when the water heater inner tube plates are positioned and blocked, the magnet separating device separates the water heater inner tube plates on the feeding trolley according to different magnetic forces of the built-in magnets at different heights, and adhesion of the two adjacent water heater inner tube plates is avoided.
Step 2, plate centering: and the lifting sucker manipulator sucks and transfers the water heater inner cylinder plate on the feeding trolley to the set position of the centering brush table. Two centering rollers in the centering roller assembly synchronously slide in opposite directions, and the water heater inner barrel plate placed on the centering brush table is centered in the width direction.
And 3, pressing, comprising the following steps:
Step 32, grabbing: the lifting frames positioned on two sides of the fixing frame in the jacking mechanism are lowered in height, the two six-axis robots work, the shifting clamping jaws on the six-axis robots are respectively oppositely placed on two wide side edges of the water heater inner cylinder plate on the fixing frame to be clamped, and two folded edges are reserved. At this point, the hold down is released and reset.
Step 33, folding the edges: two six robots move up to the bottom of the pressing groove roller of the pressing machine, and the flat water heater inner cylinder plate is folded into an oval cylinder.
When two six robots bend to the pressfitting grooved roll top, the high preferred rising of crane among the climbing mechanism forms the V-arrangement, holds the water heater inner tube panel bottom of bending, prevents that barrel 81 from warping.
Step 34, pressing: the height of the stitching head in the stitching machine is lowered to stitch the hems of the elliptical cylinder in step 33 together. Then the stitching machine head is reset. And after the pressing is finished, the lifting frame is reset.
And 4, rounding, comprising the following steps:
Then, a shifting clamping jaw in the six-axis robot is loosened, a material taking clamp slides along a telescopic circle correcting central roller, preferably, a barrel is firstly shifted to a lifted material receiving lifting platform, the material taking clamp is loosened and reset, a servo lifting platform is continuously lifted to a certain height (the height is different according to the diameters of different barrels), the telescopic circle correcting central roller slides and is inserted into the barrel, and the material receiving lifting platform descends to the position.
Step 5, blanking of the cylinder body: the circle correcting assembly rises in place, the material receiving lifting platform rises in height, the barrel is supported, the telescopic circle correcting central roller returns along the axial direction to reset, the material receiving lifting platform supports the barrel to fall in place, and the barrel is taken out.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (10)
1. The utility model provides an automatic hem lamination equipment of water heater inner tube panel beating shell which characterized in that: the device comprises a plate feeding and distributing mechanism, a centering mechanism, a pressing mechanism and a circle correcting mechanism;
the plate feeding and distributing mechanism comprises a feeding trolley and a lifting sucker manipulator; the feeding trolley is used for stacking and placing the plates of the inner barrel of the water heater, the lifting sucker manipulator can slide back and forth along the direction of a line body, and a plurality of suckers are arranged at the bottom of the lifting sucker manipulator;
the centering mechanism comprises a centering brush table, a servo transfer clamp and at least two sets of centering roller components;
the centering brush table is arranged on a line body at the downstream of the feeding trolley;
each group of centering roller components comprises two centering rollers capable of sliding oppositely or oppositely, and the sliding direction of the centering rollers is perpendicular to the line body;
the servo shifting clamp comprises two clamps which can slide oppositely or oppositely, and the sliding direction of the clamps is parallel to the line body; the clamp is provided with an upper clamping plate and a lower clamping plate which can be lifted and lowered in height;
the pressing mechanism comprises a pressing machine, two six-axis robots, a transfer clamping jaw and a jacking mechanism;
the jacking mechanism is arranged on a line body at the downstream of the centering brush table and comprises a fixed frame and lifting frames symmetrically arranged at two sides of the fixed frame;
the pressing machine is arranged right above the fixing frame and comprises a pressing groove roller and a pressing machine head; the position of the pressing groove roller is fixed, and the pressing machine head is positioned right above the pressing groove roller and can be lifted;
two six-axis robots are positioned at two sides of the fixed frame, and a bowl part of each six-axis robot is provided with a shifting clamping jaw;
the circle correcting mechanism comprises a telescopic circle correcting central roller, a material taking clamp and a circle correcting assembly;
the telescopic circle correcting central roller and the pressing groove roller are coaxially arranged, can slide or stretch along the axial direction and can rotate around the axis of the telescopic circle correcting central roller;
the material taking clamp is arranged on the outer side of the pressing groove roller and can slide back and forth along the direction parallel to the telescopic circle correcting center roller;
the circle correcting assembly is located right above the telescopic circle correcting central roller and can be lifted and lowered.
2. The automatic flanging and pressing equipment for the sheet metal shell of the inner cylinder of the water heater as claimed in claim 1, which is characterized in that: the circle correcting assembly comprises a main circle correcting roller and auxiliary circle correcting rollers symmetrically arranged on two sides of the main circle correcting roller; the height of the auxiliary rounding roller is lower than that of the main rounding roller.
3. The automatic flanging and pressing equipment for the sheet metal shell of the inner cylinder of the water heater as claimed in claim 2, characterized in that: assuming that the diameter of the telescopic circle correcting center roller is D1, the diameter of the auxiliary circle correcting roller is D2, the diameter of the main circle correcting roller is D3, the horizontal distance from the main circle correcting roller to the auxiliary circle correcting roller is L1, and the vertical distance from the main circle correcting roller to the auxiliary circle correcting roller is L2, D1= (2-3) D3, D2= (1-2) D3, L1= (2.1-3.2) D2, and L2= (0.3-0.8) D2 are satisfied.
4. The automatic flanging and pressing equipment for the sheet metal shell of the inner cylinder of the water heater as claimed in claim 1, which is characterized in that: the rounding mechanism also comprises a material receiving lifting platform, the material receiving lifting platform is arranged right below the telescopic rounding center roller, and the height of the material receiving lifting platform can be lifted; the top of the material receiving lifting platform is arc-shaped or V-shaped.
5. The automatic flanging and pressing equipment for the sheet metal shell of the inner cylinder of the water heater as claimed in claim 1, which is characterized in that: the transferring clamping jaw comprises a plate clamping cavity, a pressing cylinder and a locking cylinder; the opening of one side towards school circle mechanism in panel centre gripping chamber, the cylinder that compresses tightly is laid in the panel centre gripping chamber outside, and the compression bar that compresses tightly the cylinder can stretch into the panel centre gripping chamber in, and the locking cylinder setting is in the opening side in panel centre gripping chamber, and the locking lever of locking cylinder can open and close of open-ended in the control panel centre gripping chamber by flexible.
6. The automatic flanging and pressing equipment for the sheet metal shell of the inner cylinder of the water heater as claimed in claim 1, which is characterized in that: two adjacent side edges of the feeding trolley are respectively provided with a positioning side plate and a magnet separating device; the magnet separating device comprises at least one magnet separating plate, and a plurality of magnets are sequentially arranged in the magnet separating plate from top to bottom.
7. An automatic edge folding and pressing forming method for a sheet metal shell of an inner cylinder of a water heater is characterized by comprising the following steps of: the method comprises the following steps:
step 1, feeding plates: manually or automatically stacking the water heater inner cylinder plates on a feeding trolley;
step 2, plate centering: the lifting sucker manipulator sucks and transfers the water heater inner cylinder plate on the feeding trolley to a set position of the centering brush table; two centering rollers in the centering roller assembly synchronously slide in opposite directions, and perform width-direction centering on the water heater inner barrel plate placed on the centering brush table;
and 3, pressing, comprising the following steps:
step 31, transferring in the line direction: two clamps in the servo shifting clamp slide in opposite directions, two wide side edges of the inner tube plate of the water heater are clamped, and the centering rollers slide in opposite directions and reset; then, the servo shifting clamp slides to a set position in the jacking mechanism along the line body, the water heater inner cylinder plate is placed on the jacking mechanism, and the clamp is loosened and reset; in the resetting process of the clamp, an upper clamping plate and a lower clamping plate of the downstream clamp are both lowered to be positioned below a water heater inner cylinder plate on the jacking mechanism;
step 32, grabbing: the lifting frames positioned on two sides of the fixed frame in the jacking mechanism are lowered in height, the two six-axis robots work, the shifting clamping jaws on the six-axis robots are respectively oppositely placed on two wide side edges of the water heater inner cylinder plate on the fixed frame for clamping, and two folded edges are reserved;
step 33, folding the edges: moving the two six-axis robots upwards to place the water heater inner cylinder plate at the bottom of a pressing groove roller of a pressing machine, and folding the flat water heater inner cylinder plate into an oval cylinder;
step 34, pressing: the height of a pressing machine head in the pressing machine is reduced, and the folded edges of the elliptic cylinder in the step 33 are pressed together; then resetting the pressing machine head;
and 4, rounding, comprising the following steps:
step 41, transferring the cylinder: one or two six-axis robots drive the pressed barrel to move to a material taking clamp of the circle correcting mechanism, and the material taking clamp clamps the barrel; then, a transferring clamping jaw in the six-axis robot is loosened, a material taking clamp slides along the telescopic circle correcting central roller, and the barrel is transferred and sleeved on the periphery of the telescopic circle correcting central roller;
step 42, circle correction: the telescopic circle correcting central roller rotates around the axis of the main circle correcting central roller, the height of the circle correcting assembly is lowered to a set position, and the main circle correcting roller rotates around the axis of the main circle correcting central roller; the cylinder body is subjected to roundness correction under the action of the telescopic roundness correction center roller, the main roundness correction roller and the auxiliary roundness correction roller.
8. The automatic flanging and pressing forming method of the sheet metal shell of the inner cylinder of the water heater according to claim 7 is characterized in that: still include step 5, the barrel unloading: the circle correcting assembly rises in place, the material receiving lifting platform rises in height, the barrel is supported, the telescopic circle correcting central roller returns along the axial direction to reset, the material receiving lifting platform supports the barrel to fall in place, and the barrel is taken out.
9. The automatic flanging and pressing forming method of the sheet metal shell of the inner cylinder of the water heater according to claim 7 is characterized in that: in step 33, when the two six-axis robots bend towards the top of the pressing groove roller, the lifting frame in the lifting mechanism rises to form a V shape to support the bottom of the bent water heater inner cylinder plate; and 34, resetting the lifting frame after the pressing is finished.
10. The automatic flanging and pressing forming method of the sheet metal shell of the inner cylinder of the water heater according to claim 7 is characterized in that: in the step 1, two adjacent side edges of the feeding trolley are respectively provided with a positioning side plate and a magnet separating device, when the water heater inner cylinder plate is positioned and blocked, the magnet separating device separates the water heater inner cylinder plate on the feeding trolley according to different magnetic forces of the built-in magnets at different heights, and adhesion of the two adjacent water heater inner cylinder plates is avoided.
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