CN1425588A - Vertical preflex device for rib cold bending unit - Google Patents
Vertical preflex device for rib cold bending unit Download PDFInfo
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- CN1425588A CN1425588A CN 03118467 CN03118467A CN1425588A CN 1425588 A CN1425588 A CN 1425588A CN 03118467 CN03118467 CN 03118467 CN 03118467 A CN03118467 A CN 03118467A CN 1425588 A CN1425588 A CN 1425588A
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- lower chuck
- vertical
- side lower
- rib
- bending
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to vertical preflex unit for rib cold bending machine. It has one combined driving mechanism comprising worm, worm gear and side lower chuck supporting screw to realize the vertical motion of the side lower chucks. There is some height difference between the clamping plane of the side lower chucks and the clamping plane of the middle lower chuck. When the rib shape is clamped, some vertical preflex is formed between each of the side chucks and the middle chuck, and this can eliminate the "side bending" phenomenon produced during bending rib. The present invention is used in ship yard for machining rib, cross beam, longitudinal keel and other curved members.
Description
Technical field
The present invention relates to a kind of shipbuilding equipment, be particularly useful for having on the boats and ships the vertical pre-bending device of cold frame bending machine of curve shape member processing.
Background technology
Most of hull frames all are asymmetric section bars, when three fulcrums are crooked, generally by the clamping of machine frame at two sides chuck, by mid frame and chuck thereof moving forward and backward in orbit, apply bending force on preceding (back) direction, promptly section bar are carried out horizontal curvature.But, after the shape bending resilience, the flexural deformation on obtaining horizontal direction, also produced N/R flexural deformation in vertical direction, be referred to as " side sway " usually.
For eliminating this N/R " side sway " distortion, make generally that to have certain height between both sides lower chuck and the middle lower chuck poor, form vertical pre-bending, after the horizontal curvature resilience, offset " side sway " phenomenon that rib occurs, obtain smooth rib workpiece, improve the forming quality of rib clod wash processing, reduce follow-up correction work.
At present, as the cold frame bending machine of Japanese fuji.Proofread and correct " side sway " with the mode that places pad, its shortcoming is that pad is spurred by friction force, damage easily, and troublesome poeration; In addition, as the cold frame bending machine of Switzerland, in the mid frame lower portion of complexity, the mechanism of vertical curve oil cylinder is set, in order to smoothing rib, there is the shortcoming of maintenance difficult in mechanism's complexity of this method.
Summary of the invention
The object of the present invention is to provide a kind of simply, can satisfy the requirement of vertical pre-bending, again can be by manual, electronic or HM Hydraulic Motor transmission, realize that the side lower chuck does stepless up and down mobilely, realize the purpose of vertical pre-bending.
For addressing this problem, designed the vertical pre-bending device of cold frame bending machine.
The vertical pre-bending device of this cold frame bending machine, the side upper grip that comprises the side lower chuck that is installed on the cold bending machine side frame, drives by the side clamping oil cylinder, lower chuck on the mid frame, the middle upper grip that drives by middle clamping cylinder, but and the combination transmission device of drive side the lower chuck worm screw, worm gear and the supporting screw that move up and down.
The present invention is that the worm screw that utilizes mechanisms such as handwheel, motor and HM Hydraulic Motor to drive on the side frame is rotated.Worm screw drives the worm gear rotation, by the screw pair of worm gear and side lower chuck supporting screw, side lower chuck supporting screw is done moved up and down, and drives the side lower chuck by side lower chuck supporting screw again and realizes rising and descending.As rib section bar panel down the time, if it is just curved, the side lower chuck will move up, if recurvation, then the side lower chuck should move down, and vertical pre-bending amount rule of thumb is set, make the clamping surface of the clamping surface of two side chucks and middle chuck not on same plane, clamping oil cylinder has promptly carried out vertical prebuckling to the rib section bar, thereby can realize eliminating " side sway " phenomenon that occurs after the frame bending resilience after clamping.
The present invention compared with prior art, owing to can utilize multiple modes such as handwheel, motor or HM Hydraulic Motor to drive vertical pre-bending device, can not only eliminate frame bending and add " side sway " phenomenon that occurs man-hour, and it is simple to have a mechanism, advantage such as be convenient to install and easy for operation.
Description of drawings
Fig. 1 is the structural representation of the vertical pre-bending device of cold frame bending machine.
1-side lower chuck among the figure, 2-side upper grip, lower chuck among the 3-, upper grip among the 4-, 5-side clamping oil cylinder, clamping oil cylinder among the 6-, 7-side frame, 8-mid frame, 9-track, 10-worm screw, 11-worm gear, 12-side lower chuck supporting screw, 13-rib section bar
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further details:
The vertical pre-bending device of cold frame bending machine shown in Figure 1, the side upper grip 2 that comprises the side lower chuck 1 that is installed on the cold bending machine side frame 7, drives by side clamping oil cylinder 5, middle lower chuck 3 on the mid frame 8, the middle upper grip 4 that drives by middle clamping oil cylinder 6, but and drive side lower chuck 1 upper and lower mobile worm screw 10, worm gear 11, side lower chuck supporting screw 12, can utilize handwheel, motor or HM Hydraulic Motor etc. to carry out driven in rotation as for worm screw 10.
The vertical pre-bending device of this cold frame bending machine: utilize worm screw 10 rotations on mechanism's drive side frames 7 such as handwheel, motor or HM Hydraulic Motor, worm screw 10 drives worm gear 11 rotations, screw pair by worm gear 11 and side lower chuck supporting screw 12, side lower chuck supporting screw is moved up and down, drive side lower chuck 1 by side lower chuck supporting screw 12 again and realize rising and descending.Make the clamping surface of the clamping surface of two side lower chucks 1 and middle lower chuck 3 thus not on same plane, a diff-H is arranged.After the middle upper grip 4 that the side upper grip 2 that side clamping oil cylinder 5 drives, middle clamping oil cylinder 6 drive is pushed down rib section bar 13, just rib section bar 13 has been carried out vertical prebuckling.General rib section bar panel 13 is down the time, if just curved, both sides lower chuck 1 will move down, if recurvation, then side lower chuck 1 should move up.The size of vertical pre-bending amount rule of thumb is provided with adjusting, thereby can realize eliminating " side sway " phenomenon that occurs behind rib section bar 13 bending springbacks.
Claims (1)
1, the vertical pre-bending device of a kind of cold frame bending machine, it is characterized in that this device comprises the side lower chuck (1) that is installed on the cold frame bending machine side frame (7), side upper grip (2) by side clamping oil cylinder (5) driving, middle lower chuck (3) on the mid frame (8), middle upper grip (4) by middle clamping oil cylinder (6) driving, but and the worm screw (10) that moves up and down of drive side lower chuck (1), worm gear (11), the combination transmission device of side lower chuck supporting screw (12), side lower chuck (1) can move up and down, the clamping surface that makes two side lower chucks (1) is different with the height between the clamping surface of middle lower chuck (3), forms the needed discrepancy in elevation of vertical prebuckling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118467 CN1425588A (en) | 2003-01-16 | 2003-01-16 | Vertical preflex device for rib cold bending unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118467 CN1425588A (en) | 2003-01-16 | 2003-01-16 | Vertical preflex device for rib cold bending unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1425588A true CN1425588A (en) | 2003-06-25 |
Family
ID=4790788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03118467 Pending CN1425588A (en) | 2003-01-16 | 2003-01-16 | Vertical preflex device for rib cold bending unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1425588A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350453A (en) * | 2011-06-24 | 2012-02-15 | 宁波福耀汽车零部件有限公司 | Variable-radian forming equipment for double-framework type products and method thereof |
| CN102717139A (en) * | 2012-05-11 | 2012-10-10 | 江苏龙威重型机械有限公司 | Modified cylinder used in bending machine or plate shearing machine |
| CN109500171A (en) * | 2018-11-26 | 2019-03-22 | 合肥科烨电物理设备制造有限公司 | S roll forming tooling |
-
2003
- 2003-01-16 CN CN 03118467 patent/CN1425588A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350453A (en) * | 2011-06-24 | 2012-02-15 | 宁波福耀汽车零部件有限公司 | Variable-radian forming equipment for double-framework type products and method thereof |
| CN102350453B (en) * | 2011-06-24 | 2014-07-02 | 宁波福耀汽车零部件有限公司 | Variable-radian forming equipment for double-framework type products and method thereof |
| CN102717139A (en) * | 2012-05-11 | 2012-10-10 | 江苏龙威重型机械有限公司 | Modified cylinder used in bending machine or plate shearing machine |
| CN109500171A (en) * | 2018-11-26 | 2019-03-22 | 合肥科烨电物理设备制造有限公司 | S roll forming tooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |