CN108246852B - Cold bending machine - Google Patents
Cold bending machine Download PDFInfo
- Publication number
- CN108246852B CN108246852B CN201711315796.XA CN201711315796A CN108246852B CN 108246852 B CN108246852 B CN 108246852B CN 201711315796 A CN201711315796 A CN 201711315796A CN 108246852 B CN108246852 B CN 108246852B
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- China
- Prior art keywords
- group
- jacking
- base
- bending
- workpiece
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- 238000005452 bending Methods 0.000 title claims abstract description 59
- 238000003825 pressing Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 description 30
- 239000010959 steel Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
-
- 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
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
Abstract
The invention discloses a cold bending machine, which comprises a base, a conveying group for conveying workpieces and a jacking group for bending the workpieces in cooperation with the conveying group, wherein the conveying group is arranged on the base, the jacking group is slidably arranged on the base, an auxiliary group for assisting the jacking group in bending the workpieces is arranged on the base, the auxiliary group is arranged on the opposite side of the jacking group, and the auxiliary group is provided with a telescopic working part which can be abutted with the workpieces. The auxiliary group is matched with the jacking group to carry out cold bending on the workpiece, and the jacking group is slidably arranged on the base, so that the workpiece can be gradually bent, the condition that one-time bending stress is overlarge and the workpiece is directly damaged is avoided; when the jacking group is used for jacking and bending the workpiece, the working part on the auxiliary group can effectively eliminate stress caused by bending on the opposite side of the workpiece, so that the workpiece is prevented from being wrinkled, the yield and the bending quality are improved, and the bending machine is particularly suitable for bending workpieces with large specifications and small radius.
Description
Technical Field
The invention relates to the technical field of steel processing, in particular to a cold bending machine.
Background
In construction engineering, I-shaped steel is often used for bending and assembling into a supporting arch frame for supporting or serving as a supporting main body of a building. The conventional I-steel common bending processing technology needs complex procedures such as I-steel blanking, butt joint, correction, lathe processing and the like. However, technical indexes such as bending radian, peripheral assembly and plane warping of the I-steel are difficult to meet the requirements, and particularly the bending processing of the I-steel with large specification and small radius is more difficult. The bending radius is smaller, so that the stress generated in the bending process of the I-steel is larger, the I-steel is more prone to being wrinkled, the subsequent bending work is directly affected by the presence of the wrinkled, the I-steel is seriously and directly scrapped, great waste is caused, and the problem that how to avoid the presence of the wrinkled of the I-steel in the bending process is an urgent need of the current I-steel bending process is solved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the cold bending machine which has good bending effect and can effectively avoid wrinkles.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a cold bending machine, includes the base, is used for conveying the conveying group of work piece and is used for the cooperation conveying group to bend the jacking group of work piece, conveying group installs on the base, jacking group slidable mounting is on the base, be equipped with the auxiliary group that is used for assisting the jacking group to bend the work piece on the base, auxiliary group installs the offside at the jacking group, auxiliary group is equipped with telescopic working portion, working portion can pull or promote the work piece.
As an improvement of the technical scheme, the working part comprises a supporting seat, a driven wheel and an auxiliary wheel which can be matched with the driven wheel to pull or push a workpiece, the supporting seat is slidably arranged on the base, the driven wheel is rotatably arranged at the lower part of the supporting seat, and the auxiliary wheel is arranged above the corresponding position of the driven wheel on the supporting seat in a lifting manner.
As the improvement of the technical scheme, the supporting seat is provided with the notch which is convenient for the workpiece to pass through on one side close to the jacking group, the driven wheel is rotatably arranged on the bottom of the notch, and the auxiliary wheel is arranged on the top of the notch and is opposite to the driven wheel.
As an improvement of the technical scheme, the auxiliary group is further provided with a second oil cylinder, and the supporting seat is hinged to the output end of the second oil cylinder.
As the improvement of the technical scheme, the jacking group comprises a first oil cylinder, a jacking seat hinged to the output of the first oil cylinder and a main roller rotatably arranged on the jacking seat, the jacking seat is slidably arranged on the base, and the main roller is arranged on one side, close to the supporting seat, of the jacking seat.
As an improvement of the technical scheme, the jacking group is positioned on the jacking seat and is further provided with a first hydraulic motor for driving the main roller to rotate.
As the improvement of above-mentioned technical scheme, the conveying group is equipped with two sets of, and sets up in the both sides of auxiliary group, the conveying group includes mount, driving roller and second hydraulic motor, the mount is installed on the base, second hydraulic motor installs on the mount, and the output is connected with the driving roller, the driving roller is rotatable to be installed on the mount is close to jacking group one side.
As an improvement of the technical scheme, the base is provided with the pressing group which can be matched with the conveying group to press the workpiece, and the pressing group is slidably arranged on the base.
As an improvement of the technical scheme, the compression set is provided with a telescopic compression head, and the compression head is provided with a roller capable of propping against a workpiece.
As an improvement of the technical scheme, the base is provided with a plurality of supporting rollers for supporting the workpiece.
The invention has the beneficial effects that:
the auxiliary group is matched with the jacking group to carry out cold bending on the workpiece, and the jacking group is slidably arranged on the base, so that the workpiece can be gradually bent, the condition that one-time bending stress is overlarge and the workpiece is directly damaged is avoided; when the jacking group jacks the workpiece, the working part on the auxiliary group can effectively eliminate stress caused by bending on the opposite side of the workpiece, so that the workpiece is prevented from being wrinkled, the yield and the bending quality are improved, and the bending machine is particularly suitable for bending workpieces with large specifications and small radius; secondly, a conveying group is designed, so that the workpiece can be effectively conveyed back and forth, and a reaction force can be provided for lifting the group to bend the workpiece. The cold bending machine has simple structure, is suitable for bending work of processing large-specification small-radius workpieces, and has good bending quality and high efficiency.
Drawings
The invention will be further described with reference to the accompanying drawings and specific examples, in which:
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a second schematic diagram of an embodiment of the present invention;
fig. 3 is a schematic structural view of a working part in the embodiment of the present invention.
Detailed Description
Referring to fig. 1 and 2, the cold bending machine of the present invention includes a base 1, a conveying group 2 for conveying workpieces, and a lifting group 3 for bending the workpieces in cooperation with the conveying group 2. In this embodiment, the workpiece is i-steel; the conveying group 2 is arranged on the base 1, the jacking group 3 is slidably arranged on the base 1, an auxiliary group 4 for assisting the jacking group 3 in bending workpieces is arranged on the base 1, the auxiliary group 4 is arranged on the opposite side of the jacking group 3, the auxiliary group 4 is provided with a telescopic working part 41, and the working part 41 can be abutted to the workpieces and can pull or push the workpieces. In this embodiment, the conveying group 2 is provided with two groups, and is disposed on the same side of the base 1, the jacking group 3 is disposed on a position opposite to the center line of the two groups of conveying groups 2, the auxiliary group 4 is disposed on the center line of the two groups of conveying groups 2 and is disposed on the same side as the conveying group 2, the auxiliary group 4 and the jacking group 3 are both slidably disposed on the same straight slide rail on the base 1, and the auxiliary group 4 and the jacking group 3 can be close to or far from each other.
With further reference to fig. 1 and 3, the working portion 41 includes a support seat 411, a driven wheel 412, and an auxiliary wheel 413 capable of pulling or pushing the workpiece in cooperation with the driven wheel 412, the support seat 411 is slidably mounted on the base 1, the driven wheel 412 is rotatably mounted on a lower portion of the support seat 411, and the auxiliary wheel 413 is liftably disposed above the support seat 411 at a position corresponding to the driven wheel 412. The auxiliary set 4 is further provided with a second oil cylinder 42, and the supporting seat 411 is hinged to an output end of the second oil cylinder 42. The support seat 411 is provided with a notch 414 near the jacking group 3 for facilitating the workpiece to pass through, the driven wheel 412 is rotatably arranged on the bottom of the notch 414, and the auxiliary wheel 413 is arranged on the top of the notch 414 and is opposite to the driven wheel 412. The auxiliary wheel 413 adopts the design that can go up and down, both can adapt to the I-steel of different specifications, can also make the lower extreme of auxiliary wheel 413 can the biggest possible web of pressing close to the I-steel, can effectively reduce the stress variation of I-steel in the bending process, avoid the fold to appear. When the working part 41 stretches the I-steel, the web plate of the I-steel passes through the space between the auxiliary wheel 413 and the driven wheel 412, the auxiliary wheel 413 and the driven wheel 412 are clamped between two wing plates of the I-steel, the second oil cylinder 42 is contracted at the moment, the auxiliary wheel 413 and the driven wheel 412 pull the wing plates on one side of the contraction direction of the second oil cylinder 42, the opposite side jacking force of the jacking group 3 is matched at the moment, the I-steel can be effectively bent, at the moment, one side of the I-steel far away from the jacking group 3 can be effectively counteracted, and the occurrence of wrinkles is avoided because of the reaction force caused by the jacking of the jacking group 3. Meanwhile, the auxiliary wheel 413 and the driven wheel 412 adopt rotatable designs, so that friction force generated in the workpiece conveying process can be effectively reduced. In this embodiment, the auxiliary wheel 413 and the driven wheel 412 are respectively and symmetrically designed at two ends of the notch 414, so that a reaction force can be effectively provided, the stress generated by bending the i-steel is eliminated, and the occurrence of wrinkles is avoided. The supporting seat 411 between the two groups of auxiliary wheels 413 and the driven wheels 412 is provided with an arc-shaped opening matched with the jacking group 3, so that the supporting seat 411 is prevented from being touched to the jacking group 3 when the I-steel is bent.
With further reference to fig. 1 and 2, the jacking group 3 includes a first cylinder 31, a jacking seat 32 hinged on the output of the first cylinder 31, and a main roller 33 rotatably disposed on the jacking seat 32, the jacking seat 32 is slidably disposed on the base 1, and the main roller 33 is disposed on a side of the jacking seat 32 near the supporting seat 411. The jacking group 3 is further provided with a first hydraulic motor 34 on the jacking seat 32 for driving the main roller 33 to rotate. The first hydraulic motor 34 can drive the main roller 33 to realize forward and reverse rotation, so that the I-steel can be conveniently bent back and forth; secondly, the hydraulic motor is adopted to drive the main roller 33, so that the clamping stagnation caused by the traditional motor driving is avoided, and the quality of cold bending is improved.
In addition, the conveying group 2 is provided with two groups and is arranged on two sides of the auxiliary group 4, the conveying group 2 comprises a fixing frame 21, a driving roller 22 and a second hydraulic motor 23, the fixing frame 21 is arranged on the base 1, the second hydraulic motor 23 is arranged on the fixing frame 21, an output end of the second hydraulic motor is connected with the driving roller 22, and the driving roller 22 is rotatably arranged on one side, close to the jacking group 3, of the fixing frame 21. The base 1 is provided with a pressing group 5 which can be matched with the conveying group 2 to press the workpiece, and the pressing group 5 is slidably arranged on the base 1. The pressing group is provided with a telescopic pressing head 51, and the pressing head 51 is provided with a roller capable of propping against a workpiece. The compression set 5 can improve the mutual slipping of the workpieces between the conveying set 2 and the jacking set 3 in the feeding process of the conveying set 2, so that errors in bending or difficulty in continuing bending the workpieces are avoided. In this embodiment, the compacting group 5 is only arranged at the feed inlet of the cold bending machine, and the discharge port is not provided with the compacting group, so that the production cost can be effectively reduced, and the compacting group 5 is arranged on the opposite side of the conveying group 2 close to one side of the feed inlet.
In addition, be equipped with a plurality of backing rolls 11 that are used for supporting the work piece on the base 1, only need external equipment or manpower to put the I-steel on backing roll 11, compress tightly the conveying group 2 interact of group 5 and feed inlet department, press from both sides tight work piece, the second hydraulic motor 23 on the conveying group 2 drives driving roller 22 and carries out the pay-off, supplementary group 4 is according to the bending condition of work piece i.e. I-steel in actual operation, correspond respectively and adopt the pterygoid lamina of pulling I-steel or in the clamping mode of holding the I-steel pterygoid lamina back, realize the internal stress that the different modes under the different bending states produced of elimination I-steel cold bending process, be particularly prepared and be fit for I-steel big specification small radius's cold bending requirement. The jacking group 3 can realize gradual cold bending of the I-steel under the action of the first oil cylinder 31, and the conveying group 2 can rotate forward and backward to realize back and forth feeding, so that the whole cold bending process is very simple, excessive manual investment is not needed, and the degree of automation is low.
The present invention is not limited to the above embodiments, but is intended to be within the scope of the present invention as long as the technical effects of the present invention can be achieved by any same or similar means.
Claims (8)
1. A cold bending machine, characterized in that: the lifting device comprises a base, a conveying group for conveying workpieces and a lifting group for bending the workpieces in cooperation with the conveying group, wherein the conveying group is arranged on the base, the lifting group is slidably arranged on the base, an auxiliary group for assisting the lifting group in bending the workpieces is arranged on the base, the auxiliary group is arranged on the opposite side of the lifting group, the auxiliary group is provided with a telescopic working part, and the working part can pull or push the workpieces;
the working part comprises a supporting seat, a driven wheel and an auxiliary wheel which can be matched with the driven wheel to pull or push a workpiece, the supporting seat is slidably arranged on the base, the driven wheel is rotatably arranged at the lower part of the supporting seat, and the auxiliary wheel is arranged above the corresponding position of the driven wheel on the supporting seat in a lifting manner;
the base is provided with a pressing group which can be matched with the conveying group to press the workpiece, and the pressing group is slidably arranged on the base.
2. A cold-bending machine according to claim 1, wherein: the supporting seat is close to one side of the jacking group and is provided with a notch which is convenient for a workpiece to pass through, the driven wheel is rotatably arranged on the bottom of the notch, and the auxiliary wheel is arranged at the top of the notch and is opposite to the driven wheel.
3. A cold-bending machine according to claim 2, wherein: the auxiliary group is also provided with a second oil cylinder, and the supporting seat is hinged to the output end of the second oil cylinder.
4. A cold-bending machine according to claim 1, wherein: the jacking group comprises a first oil cylinder, a jacking seat hinged to the output of the first oil cylinder and a main roller rotatably arranged on the jacking seat, the jacking seat is slidably arranged on the base, and the main roller is arranged on one side, close to the supporting seat, of the jacking seat.
5. A cold-bending machine according to claim 4, wherein: the jacking group is positioned on the jacking seat and is also provided with a first hydraulic motor for driving the main roller to rotate.
6. A cold-bending machine according to claim 1, wherein: the conveying group is provided with two groups and is arranged on two sides of the auxiliary group, the conveying group comprises a fixing frame, a driving roller and a second hydraulic motor, the fixing frame is arranged on the base, the second hydraulic motor is arranged on the fixing frame, the output end of the second hydraulic motor is connected with the driving roller, and the driving roller is rotatably arranged on one side, close to the jacking group, of the fixing frame.
7. A cold-bending machine according to claim 1, wherein: the pressing set is provided with a telescopic pressing head, and the pressing head is provided with a roller capable of propping against a workpiece.
8. A cold-bending machine according to claim 1, wherein: the base is provided with a plurality of supporting rollers for supporting the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315796.XA CN108246852B (en) | 2017-12-12 | 2017-12-12 | Cold bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315796.XA CN108246852B (en) | 2017-12-12 | 2017-12-12 | Cold bending machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108246852A CN108246852A (en) | 2018-07-06 |
| CN108246852B true CN108246852B (en) | 2024-02-06 |
Family
ID=62721632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711315796.XA Active CN108246852B (en) | 2017-12-12 | 2017-12-12 | Cold bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108246852B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193550A (en) * | 2019-06-11 | 2019-09-03 | 中铁五局集团第四工程有限责任公司 | A kind of rotary moving fashioned iron hole punched device |
| CN113275415B (en) * | 2021-06-23 | 2023-09-05 | 内蒙古工业大学 | Mechanical device of straightening machine |
| CN117066325B (en) * | 2023-10-16 | 2023-12-22 | 山东方原建设集团有限公司 | Steel structure steel bending device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5355464A (en) * | 1976-10-30 | 1978-05-19 | Tokyo Giken Kougiyou Kk | Cold plastic bending machine for light weight shaped steel |
| CN2491146Y (en) * | 2001-07-12 | 2002-05-15 | 余波 | Push-pull roller type cold bender |
| CN2506368Y (en) * | 2001-07-12 | 2002-08-21 | 余波 | Crank block mechanism cold bending machine |
| CN201257465Y (en) * | 2008-07-16 | 2009-06-17 | 邹扬华 | Sectional steel cold-bending machine |
| CN206276755U (en) * | 2016-12-15 | 2017-06-27 | 山西中德科工机械制造有限公司 | Camber arch machine |
| CN107262572A (en) * | 2017-06-29 | 2017-10-20 | 徐州迈斯特机械科技有限公司 | A kind of numerical control I-steel forming mill |
| CN207723245U (en) * | 2017-12-12 | 2018-08-14 | 珠海东方重工有限公司 | A kind of forming mill |
-
2017
- 2017-12-12 CN CN201711315796.XA patent/CN108246852B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5355464A (en) * | 1976-10-30 | 1978-05-19 | Tokyo Giken Kougiyou Kk | Cold plastic bending machine for light weight shaped steel |
| CN2491146Y (en) * | 2001-07-12 | 2002-05-15 | 余波 | Push-pull roller type cold bender |
| CN2506368Y (en) * | 2001-07-12 | 2002-08-21 | 余波 | Crank block mechanism cold bending machine |
| CN201257465Y (en) * | 2008-07-16 | 2009-06-17 | 邹扬华 | Sectional steel cold-bending machine |
| CN206276755U (en) * | 2016-12-15 | 2017-06-27 | 山西中德科工机械制造有限公司 | Camber arch machine |
| CN107262572A (en) * | 2017-06-29 | 2017-10-20 | 徐州迈斯特机械科技有限公司 | A kind of numerical control I-steel forming mill |
| CN207723245U (en) * | 2017-12-12 | 2018-08-14 | 珠海东方重工有限公司 | A kind of forming mill |
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| Publication number | Publication date |
|---|---|
| CN108246852A (en) | 2018-07-06 |
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Address after: 519000 west side of Xincheng Avenue, Fushan Industrial Zone, Zhuhai City, Guangdong Province (plant a) Applicant after: Zhuhai Dongfang Heavy Industry Co.,Ltd. Address before: 519100 West Side of Xincheng Avenue, Fushan Industrial Zone, Zhuhai City, Guangdong Province (Plant A) Applicant before: EASTERN HEAVY INDUSTRY CO.,LTD.,ZHUHAI |
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