CN108856480B - Continuous combined type bending process for door shell sheet metal part - Google Patents
Continuous combined type bending process for door shell sheet metal part Download PDFInfo
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- CN108856480B CN108856480B CN201810486505.1A CN201810486505A CN108856480B CN 108856480 B CN108856480 B CN 108856480B CN 201810486505 A CN201810486505 A CN 201810486505A CN 108856480 B CN108856480 B CN 108856480B
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- 238000005452 bending Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 238000003754 machining Methods 0.000 abstract description 6
- 238000003825 pressing Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
A door shell sheet metal part continuous combined type bending process sequentially comprises a feeding process, a positioning support process, a right angle bending process, an arc angle bending process, a horizontal arc angle die head retreating process and a vertical arc angle die head retreating process, and actions such as feeding, positioning support, right angle bending, arc angle bending, horizontal arc angle/vertical arc angle die head retreating and the like are sequentially realized. Compared with the prior art, the process provided by the invention solves the problems of high equipment cost, low machining precision, low machining efficiency and the like in the traditional separated bending mode, has the characteristics of low cost, high machining precision, high efficiency and the like, and has popularization and application values in the field of door shell sheet metal part machining.
Description
Technical Field
The invention relates to a sheet metal part machining process, in particular to a continuous combined type bending process capable of machining a door shell sheet metal part.
Background
The door shell sheet metal part shown in figure 1 is widely used in kitchen cabinets, refrigerators and freezers, and the end part of the door shell sheet metal part consists of a right angle 1 and an arc angle 2, and is generally processed by two different special bending machines, namely a special right-angle bending machine and a special arc angle bending machine. The processing method has the problems of high equipment cost, low processing precision, low processing efficiency and the like, and limits the reduction range of the processing cost of the door shell sheet metal part.
Disclosure of Invention
The embodiment of the invention provides a technology for continuously and compositely bending and processing a door shell sheet metal part, which overcomes the defects of the existing processing technology for processing the door shell sheet metal part so as to reduce the processing cost of the door shell sheet metal part.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
the embodiment of the invention provides a special machine for bending a door shell assembly, which consists of a right assembly bending unit, a left assembly bending unit, a middle supporting unit and a main frame, and is characterized in that: the right combined bending unit and the left combined bending unit have the same structure, are arranged on the main rack through a ball screw pair and are symmetrical about the central line of the middle supporting unit; the middle supporting unit consists of a plurality of guide columns and guide wheels, and each guide column is provided with the guide wheels at equal intervals for supporting the plate; the right combined bending unit consists of a pushing and forming assembly, a side positioning assembly, a right-angle bending assembly, an arc angle forming assembly, a rotary die strip wheel, a material plate table, a rotary die strip and a plurality of right frames, wherein the right frames are arranged in parallel along the feeding direction and are welded into a whole, and each right frame is provided with a side positioning assembly for positioning the side edge of a material plate; the right-angle bending assembly and the arc angle forming assembly are vertically arranged at the top of the right rack, the right-angle bending assembly is positioned outside the arc angle forming assembly, a material plate platform is arranged below the right-angle bending assembly and the arc angle forming assembly, the rotary die strip wheel is driven by an external power mechanism, the rotary die strip is fixedly connected with the rotary die strip wheel, and the rotary die strip is provided with a pushing and forming assembly; the right-angle bending assembly consists of a right-angle bending cylinder and a bending die head, wherein the upper part of the bending die head is fixedly connected with a piston rod of the right-angle bending cylinder, a cutter groove is formed in the left side of the lower part of the bending die head, and a right-angle forming bulge is formed in the right side of the lower part of the bending die head; the arc angle forming assembly consists of an arc angle forming cylinder, a second transition die head, an arc angle die head, a die head stripping cylinder, a transition rod, a first guide rod and a first guide rod, wherein the second transition die head is fixedly installed with a piston rod of the arc angle forming cylinder, the side part of the second transition die head is fixedly provided with the die head stripping cylinder and the first guide rod, the bottom of the second transition die head is provided with a dovetail groove in the horizontal direction, the arc angle die head is embedded in the dovetail groove, one side part of the arc angle die head is provided with an arc angle bulge, the other side part of the arc angle die head is fixedly provided with the first guide rod, the middle part of the first guide rod is sleeved with the first guide rod, and the other end of the first guide rod is fixedly connected with; the pushing and pressing forming assembly is composed of a pushing and pressing cylinder, a pushing and pressing die head and a hinge die head, the pushing and pressing cylinder is fixedly installed on the lower portion of the rotary die strip, a piston rod head of the pushing and pressing cylinder is connected with the pushing and pressing die head through a movable hinge, the hinge die head is fixedly connected with the pushing and pressing die head in a layered mode, a first hinge hole is formed in the upper end portion of the hinge die head, and the hinge die head is movably installed on the upper portion of the rotary die strip through the.
Preferably, the number of the guide pillars is 4, and the guide pillars are respectively a first guide pillar, a second guide pillar, a third guide pillar and a third guide pillar, wherein the first guide pillar and the third guide pillar are symmetrically arranged on the left side and the right side, and the second guide pillar and the third guide pillar are symmetrically arranged on the two sides of the middle part.
Preferably, the external power mechanism for driving the rotary die strip wheel is an air cylinder, an oil cylinder or a control motor.
Correspondingly, the invention relates to a continuous combined type bending process for door shell sheet metal parts, which sequentially comprises a feeding process, a positioning and supporting process, a right-angle bending process, an arc angle bending process, a horizontal arc angle die head retreating process and a vertical arc angle die head retreating process, and is characterized in that:
1) the feeding process comprises the following steps: before the processing is started, the plate enters a special door shell combined bending machine station under the action of a mechanical arm;
2) the positioning and supporting process comprises the following steps: under the combined action of the middle supporting unit and the side positioning component, the positioning and supporting of the plate are realized;
3) and (3) right-angle bending process: the bending die head and the arc angle die head are respectively pressed towards the plate under the action of the right-angle bending cylinder and the arc angle forming cylinder, the pushing cylinder extends out to push the hinge die head, the hinge die head drives the pushing die head to rotate, the right-angle bending action on the head of the plate is realized, and the pushing cylinder and the right-angle bending cylinder retract in sequence;
4) the arc angle bending process comprises the following steps: the rotary die strip wheel rotates for a plurality of angles to drive the rotary die strip to rotate, after the rotary die strip wheel rotates to a position, the pushing cylinder extends out for the second time to push the hinge die head, and the hinge die head drives the pushing die head to rotate, so that the arc angle bending action of the plate is realized;
5) the horizontal arc angle die head annealing process comprises the following steps: the pushing cylinder retracts for the second time, and after the pushing cylinder retracts in place, the die head withdrawing cylinder extends out to sequentially drive the transition rod, the first guide rod and the arc angle die head to linearly move, so that the arc angle die head is far away from the bending right angle on the plate, and mutual rubbing is avoided;
6) the vertical circular arc angle die head retreating process comprises the following steps: and after the die head withdrawing cylinder extends in place, the arc angle forming cylinder retracts to enter the next cycle.
Preferably, the angle of the rotary die-cutting wheel is between 90 and 95 .
The embodiment of the invention provides a door shell sheet metal part continuous combined type bending process, which realizes the continuous combined type bending of a right angle and an arc angle of a door shell sheet metal part on one station through optimized design.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a partial structure of a door shell sheet metal part to be processed and molded according to the present invention;
FIG. 2 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a middle support unit in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a right combined bending unit in an embodiment of the present invention;
FIG. 5 is a schematic structural view of a right angle bending assembly in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a fillet forming assembly according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of a push forming assembly according to an embodiment of the present invention;
FIG. 8 is a schematic view of a portion of the structure after being bent at a right angle according to an embodiment of the present invention;
fig. 9 is a schematic view of a partial structure after bending the arc angle in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a special machine for bending a door shell assembly, which is composed of a right assembly bending unit 11, a left assembly bending unit 12, a middle supporting unit 13 and a main frame 14, and is characterized in that: the right combined bending unit 11 and the left combined bending unit 12 are completely the same in structure, are arranged on the main frame 14 through a ball screw pair 15, and are symmetrical about the central line of the middle supporting unit 13; the middle supporting unit 13 is composed of a plurality of guide pillars and guide wheels 135, each guide pillar is provided with the guide wheel 135 at an equal distance for supporting the plate 10, as shown in fig. 3, the number of the guide pillars in this embodiment is 4, and the guide pillars are respectively a first guide pillar 131, a second guide pillar 132, a third guide pillar 133 and a third guide pillar 134, wherein the first guide pillar 131 and the third guide pillar 134 are symmetrically arranged at the left and right sides, and the second guide pillar 132 and the third guide pillar 133 are symmetrically arranged at the two sides of the middle portion.
As shown in fig. 4, the right combined bending unit 11 is composed of a pushing forming assembly 110, a side positioning assembly 111, a right-angle bending assembly 112, an arc angle forming assembly 113, a rotary die strip wheel 114, a material plate table 115, a rotary die strip 116, and a plurality of right frames 118, wherein the right frames 118 are arranged in parallel along a feeding direction and are welded into a whole, and each right frame 118 is provided with one side positioning assembly 111 for positioning the side edge of the material plate 10; right angle bending subassembly 112, the equal vertical setting of arc angle shaping subassembly 113 are at right frame 118 top, and right angle bending subassembly 112 is located the 113 outsides of arc angle shaping subassembly, is equipped with flitch platform 115 in right angle bending subassembly 112, the 113 below of arc angle shaping subassembly, and rotatory mould strip wheel 114 is driven by external power mechanism, like cylinder, servo motor etc. rotatory mould strip 116 and rotatory mould strip wheel 114 fixed connection are equipped with on rotatory mould strip 116 and bulldoze shaping subassembly 110.
As shown in fig. 5, the right-angle bending assembly 112 comprises a right-angle bending cylinder 1121 and a bending die head 1122, wherein the upper portion of the bending die head 1122 is fixedly connected with a piston rod of the right-angle bending cylinder 1121, a cutter relieving groove 11221 is formed in the left side of the lower portion, and a right-angle forming protrusion 11222 is formed in the right side of the lower portion.
As shown in fig. 6, the circular arc angle forming assembly 113 is composed of a circular arc angle forming cylinder 1131, a second transition die 1132, a circular arc angle die 1133, a die ejecting head cylinder 1135, a transition rod 1136, a first guide rod 1138, and a first guide post 1137, the second transition die 1132 is fixedly mounted on a piston rod of the circular arc angle forming cylinder 1131, and the side portion of the second transition die 1132 is fixedly mounted with the die ejecting head cylinder 1135 and the first guide post 1137, the bottom portion of the second transition die 1132 is provided with a horizontal dovetail groove, and the circular arc angle die 1133 is nested in the dovetail groove, one side portion of the circular arc angle die 1133 is provided with a circular arc angle boss 11331, the other side portion is fixedly mounted with the first guide rod 1138, the middle portion of the first guide rod 1138 is nested with the first guide post 1137, and the other end of the first guide rod 1138 is fixedly connected with the piston rod of the die.
As shown in fig. 7, the push molding assembly 110 comprises a push cylinder 1101, a push die head 1102 and a hinge die head 1103, wherein the push cylinder 1101 is fixedly mounted at the lower part of the rotary mold strip 116, a rod head of a piston rod of the push cylinder 1101 is connected with the push die head 1102 through a movable hinge, the hinge die head 1103 and the push die head 1102 are fixedly connected in a layered manner, the upper end part of the hinge die head 1103 is provided with a first hinge hole 11031, and the hinge die head is movably mounted at the upper part of the rotary mold strip 116 through the first hinge hole 11031.
In the schematic view of the partial structure after bending the right angle as shown in fig. 8, the sheet material 10 enters a special door shell combined bending machine station under the action of a manipulator; under the combined action of the middle supporting unit 13 and the side positioning component 111, positioning and supporting of the plate 10 are realized; in fig. 8, the bending die head 1122 and the arc angle die head 1133 are respectively pressed toward the sheet material 10 by the right-angle bending cylinder 1121 and the arc angle forming cylinder 1131, the pushing cylinder 1101 extends to push the hinge die head 1103, the hinge die head 1103 drives the pushing die head 1102 to rotate, so that the right-angle bending action on the head of the sheet material 10 is realized, and the pushing cylinder 1101 and the right-angle bending cylinder 1121 sequentially retract.
In the schematic view of the partial structure after the arc angle is bent shown in fig. 9, the rotating die wheel 114 rotates by a plurality of angles, preferably, the rotating angle is 90 -95 , so as to drive the rotating die 116 to rotate, after the rotating die wheel rotates to the position, the pushing cylinder 1101 extends for the second time to push the hinge die head 1103, and the hinge die head 1103 drives the pushing die head 1102 to rotate, so as to realize the arc angle bending action on the sheet material 10; the push cylinder 1101 retracts for the second time, and after the push cylinder retracts in place, the die head withdrawing cylinder 1135 extends out to sequentially drive the transition rod 1136, the first guide rod 1138 and the arc angle die head 1133 to linearly move, so that the arc angle die head 1133 is far away from the bending right angle on the plate 10, and mutual rubbing is avoided; after the die withdrawing cylinder 1135 extends to the right position, the arc angle forming cylinder 1131 retracts to enter the next cycle. Thereby realizing the continuous combined bending of the right angle and the arc angle of the door shell sheet metal part.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (2)
1. A door shell sheet metal part continuous combined type bending process sequentially comprises a feeding process, a positioning and supporting process, a right-angle bending process, an arc angle bending process, a horizontal arc angle die head retreating process and a vertical arc angle die head retreating process, and is characterized in that:
1) the feeding process comprises the following steps: before the processing begins, the plate (10) enters a special door shell combined bending machine station under the action of a mechanical arm;
2) a positioning and supporting process: under the combined action of the middle supporting unit (13) and the side positioning assembly (111), positioning and supporting of the plate (10) are realized;
3) and (3) right-angle bending process: the bending die head (1122) and the arc angle die head (1133) are respectively pressed towards the plate (10) under the action of the right-angle bending cylinder (1121) and the arc angle forming cylinder (1131), the pushing cylinder (1101) extends to push the hinge die head (1103), the hinge die head (1103) drives the pushing die head (1102) to rotate, the right-angle bending action on the head of the plate (10) is achieved, and the pushing cylinder (1101) and the right-angle bending cylinder (1121) retract in sequence;
4) arc angle bending process: the rotating die strip wheel (114) rotates for a plurality of angles to drive the rotating die strip (116) to rotate, after the rotating die strip wheel rotates to a position, the pushing cylinder (1101) stretches out for the second time to push the hinge die head (1103), and the hinge die head (1103) drives the pushing die head (1102) to rotate to realize the arc angle bending action on the plate material (10);
5) the horizontal arc angle die head retreating process comprises the following steps: the push cylinder (1101) retracts for the second time, and after the push cylinder retracts to the right position, the die head withdrawing cylinder (1135) extends out to sequentially drive the transition rod (1136), the first guide rod (1138) and the arc angle die head (1133) to linearly move, so that the arc angle die head (1133) is far away from a bending right angle on the plate (10), and mutual rubbing is avoided;
6) the vertical arc angle die head retreating process comprises the following steps: and after the die head withdrawing cylinder (1135) extends to the right position, the arc angle forming cylinder (1131) retracts to enter the next cycle.
2. The continuous combined type bending process for the door shell sheet metal parts according to claim 1, characterized in that: the rotating angle of the rotating mould strip wheel (114) is between 90 and 95 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486505.1A CN108856480B (en) | 2018-05-21 | 2018-05-21 | Continuous combined type bending process for door shell sheet metal part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486505.1A CN108856480B (en) | 2018-05-21 | 2018-05-21 | Continuous combined type bending process for door shell sheet metal part |
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| Publication Number | Publication Date |
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| CN108856480A CN108856480A (en) | 2018-11-23 |
| CN108856480B true CN108856480B (en) | 2020-01-21 |
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| CN110711807A (en) * | 2019-11-14 | 2020-01-21 | 无锡中舜精密钣金有限公司 | Continuous combined type bending process for door shell sheet metal part |
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| JPH10128450A (en) * | 1996-10-30 | 1998-05-19 | Amada Co Ltd | Lowering type press brake |
| CN106925635B (en) * | 2017-03-15 | 2019-01-15 | 黄杰 | flexible bending machine |
| CN107350378B (en) * | 2017-07-13 | 2023-08-22 | 安徽鲲鹏装备模具制造有限公司 | Z-shaped bottom plate production line of refrigerator liner |
| CN206951899U (en) * | 2017-07-13 | 2018-02-02 | 安徽鲲鹏装备模具制造有限公司 | A kind of double circle right angle folding brakes |
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Address after: 239000 standard workshop No. 25, Suchu directional construction industrial workshop, Suchu modern industrial park, Chuzhou City, Anhui Province Patentee after: AnHui ZhongJia Automation Technology Co.,Ltd. Country or region after: China Address before: 239000 standard workshop No. 25, Suchu directional construction industrial workshop, Suchu modern industrial park, Chuzhou City, Anhui Province Patentee before: ANHUI ZHONGJIA AUTOMATION TECHNOLOGY CO.,LTD. Country or region before: China |
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