CN204320872U - A kind of mid frame of cold-frame bender - Google Patents
A kind of mid frame of cold-frame bender Download PDFInfo
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- CN204320872U CN204320872U CN201420825795.5U CN201420825795U CN204320872U CN 204320872 U CN204320872 U CN 204320872U CN 201420825795 U CN201420825795 U CN 201420825795U CN 204320872 U CN204320872 U CN 204320872U
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- lower chuck
- upper grip
- connecting rod
- frame
- cold
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Abstract
The utility model discloses a kind of mid frame of cold-frame bender, belong to forming mill technical field.The utility model comprises thrust unit, upper grip connecting rod, upper grip, lower chuck, lower chuck connecting rod and gantry base, upper grip connecting rod is connected with the thrust unit of the side of being located thereon, lower chuck connecting rod and the gantry base be positioned at below it are connected, upper grip removably connects with the upper grip connecting rod of the side of being located thereon, lower chuck and the lower chuck connecting rod be positioned at below it removably connect, and when upper grip and lower chuck clamp, inside forms circular cavity.It is fixedly securing of round section bar that the utility model achieves cross section, improves machining accuracy; Being that difform section bar matches by changing difform upper and lower chuck with cross section simultaneously, reaching the object of stable firm grip section bar, expanding the scope of cold-frame bender fabircated shapes type.
Description
Technical field
The utility model relates to forming mill technical field, more particularly, relates to a kind of mid frame of cold-frame bender.
Background technology
The cold-frame bender of numerical control drives machine frame at two sides to have swung charging by charging oil cylinder, and rib drives mid frame to realize just curved, recurvation and S shape bending machining by principal curvature oil cylinder.Its course of work is as follows: first rib is sent into forming mill workbench, is clamped by section bar with left and right sides clamping cylinder, and next step can carry out charging or bending work.When pressing charging button (for charging left), right clamping cylinder clamping, left, middle clamping cylinder loosens, charging oil cylinder pushing left and right sides frame is opened, then left clamping cylinder clamping, and right clamping cylinder loosens, charging oil cylinder pulls left and right sides frame to close up, and completes a charging flow process like this.Charging is in the other direction the material returned.Press just (instead) curved button time, principal curvature oil cylinder drives (afterwards) motion before mid frame, thus applying bending force is on rib, and just (instead) that realize rib is curved.When recurvation rib, for avoiding producing fold, in General Requirements, clamping cylinder will clamp rib, reaches the state of " folder and not tight ".
Many boats and ships structurally adopt the round steel and band steel that need bend at present, in recent years along with the development of shipbuilding industry, Ship Structure is also more and more complicated, more and more applied in Ship Structure with the round steel of line style and band steel, cold-frame bender can be used as bending equipment simultaneously, in the field extensive use that other need steel construction piece to process, therefore more and more dissimilar section bar is processed by cold-frame bender.When cold-frame bender carries out automatic bending to section bar, section bar self bears very large curved power, therefore section bar reliably must be fixed on feed frame.Traditional upper and lower chuck of cold-frame bender mid frame is cuboid, in time processing upper lower section non-planar material, often lack the fulcrum of clamping, and make section bar can not be securely fixed between upper and lower chuck, the contact area of section bar and upper and lower chuck is too small simultaneously, cause discontinuity, local pressure is excessive, easily causes crimp to Surface of profile.
Chinese Patent Application No.: 201420006580.0, the applying date: on January 6th, 2014, invention and created name is: cold-frame bender.This application case discloses a kind of cold-frame bender, comprises mainframe, two slave framves, master cylinder, two auxiliary oil cylinders, also comprises main hold assembly, lower main hold assembly, two upper secondary hold assemblies, secondary hold assembly under two; The operating platform of this mainframe is welded with a main mould by stake, this main mould has a main mould abutted against with this workpiece to be added by the front portion abutting of stake; The operating platform of this slave frame is all welded with a secondary mould by stake, this secondary mould is by the outer surface of stake being arranged with a secondary mould abutted against with workpiece to be added; Slave frame is provided with a guider away from the side of mainframe, this guider comprises moving-member, fixed part and the guide die for avoiding workpiece to be added biased, the bottom of this fixed part is fixed on this moving-member, and the top of this fixed part is placed with guide die.The shortcoming of this application case is, clamping device is comparatively complicated, and the contact area of section bar and upper and lower chuck is still too small simultaneously, easily causes Surface of profile crimp.
Utility model content
1. the utility model technical problem that will solve
The purpose of this utility model is to overcome the upper and lower chuck of traditional cold-frame bender mid frame, and firmly can not to fix upper and lower surface be nonplanar section bar, and easily cause the deficiency of this Surface of profile crimp, provide a kind of mid frame of cold-frame bender, achieve fixedly securing section bar, expand the scope of fabircated shapes type.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The mid frame of a kind of cold-frame bender of the present utility model, comprise thrust unit, upper grip connecting rod, upper grip, lower chuck, lower chuck connecting rod and gantry base, described upper grip connecting rod is connected with the thrust unit of the side of being located thereon, described lower chuck connecting rod and the gantry base be positioned at below it are connected, upper grip removably connects with the upper grip connecting rod of the side of being located thereon, lower chuck and the lower chuck connecting rod be positioned at below it removably connect, and when upper grip and lower chuck clamp, inside forms circular cavity.
Further improve as the utility model, the lower surface of described upper grip is semi arch groove, and the upper surface of described lower chuck is semi arch groove.
Further improve as the utility model, described upper grip lower surface, lower chuck upper surface are lined with rubber sheet gasket.
Further improve as the utility model, described thrust unit is hydraulic drive mechanism.
3. beneficial effect
The technical scheme adopting the utility model to provide, compared with prior art, has following beneficial effect:
(1) mid frame of a kind of cold-frame bender of the present utility model, the inner structure forming circular cavity when its upper grip and lower chuck clamp, owing to expanding holding area, being applicable to the stable cross section that firmly clamps is circular section bar, and be not easy to cause the crimp to this Surface of profile, improve the bending machining precision of section bar.
(2) mid frame of a kind of cold-frame bender of the present utility model, its upper grip, lower chuck are for removably connecting, be that difform section bar matches by changing difform upper and lower chuck and cross section, reach the object of stable firm grip section bar, expand the scope of cold-frame bender fabircated shapes type.
(3) mid frame of a kind of cold-frame bender of the present utility model, reasonable in design, principle is simple, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of mid frame of a kind of cold-frame bender of the present utility model;
Fig. 2 is the structural representation of upper and lower chuck in the utility model.
Label declaration in schematic diagram:
Thrust unit 1, upper grip connecting rod 2, upper grip 3, lower chuck 4, lower chuck connecting rod 5, gantry base 6.
Detailed description of the invention
For understanding content of the present utility model further, by reference to the accompanying drawings the utility model is described in detail.
Embodiment 1
As depicted in figs. 1 and 2, the mid frame of a kind of cold-frame bender of the present embodiment, comprises thrust unit 1, upper grip connecting rod 2, upper grip 3, lower chuck 4, lower chuck connecting rod 5 and gantry base 6.Upper grip connecting rod 2 is connected with the thrust unit 1 of the side of being located thereon, and thrust unit 1 is hydraulic drive mechanism, drives upper grip connecting rod 2 to move up and down.Lower chuck connecting rod 5 and the gantry base 6 be positioned at below it are connected.Upper grip 3 removably connects with the upper grip connecting rod 2 of the side of being located thereon, lower chuck 4 and the lower chuck connecting rod 5 be positioned at below it removably connect, upper grip 3 is realized with the clamping of lower chuck 4 by moving up and down of upper grip connecting rod 2, is separated, Detachable connection structure has a variety of can selection, only need realization to be convenient for changing upper grip 3, lower chuck 4, specifically demountable structure is in the present embodiment that bolt connects.Upper grip 3 lower surface is semi arch groove, the upper surface of lower chuck 4 is semi arch groove, when upper grip 3 and lower chuck 4 clamp, inside forms circular cavity, when clamping cross section and being circular section bar, section bar matches with this circular cavity, section bar is enclosed in circular cavity completely, thus stable firmly clamps section bar.Simultaneously due to Surface of profile and upper grip 3, lower chuck 4 fully contact, the part not easily crimp that section bar is clamped.Upper grip 3 lower surface, lower chuck 4 upper surface are lined with rubber sheet gasket, and by rubber sheet gasket, section bar not easily loosens when clamping, improves the precision of bending machining.
The upper grip 3 of this enforcement, lower chuck 4 are for removably connecting, and by changing upper grip 3 and the lower chuck 4 of different size, adapting to different size cross section is circular section bar, expands and can clamp the size range that cross section is circular section bar.Cold-frame bender two side frames can be arranged upper grip, lower chuck with the upper grip 3 of this enforcement, lower chuck 4 same shape size, thus more stablely firmly clamp section bar, ensure bending machining precision.In addition, the present embodiment offers cavity in gantry base 6, hydraulic jack is provided with in this cavity, this hydraulic jack is connected with oil cylinder controller, the piston end of hydraulic jack is connected with the lower surface of lower chuck connecting rod 5, by the expanding-contracting action of oil cylinder controller hydraulic control oil cylinder, lower chuck connecting rod 5 is made to drive lower chuck 4 lifting moving, thus make the lower chuck in the present embodiment mid frame on lower chuck 4 and two side frames form certain difference in height, when clamping rib, realize the vertical pre-bending of rib, after Spring Back of The Cold Bending, offset " side sway " phenomenon that rib occurs, thus obtain smooth rib workpiece, improve the forming quality of rib clod wash processing, decrease follow-up correction work.
Embodiment 2
The mid frame of a kind of cold-frame bender of the present embodiment, basic structure is with embodiment 1, its difference is: upper grip 3 lower surface of the present embodiment is semi arch groove, the upper surface of lower chuck 4 is horizontal plane, when upper grip 3 and lower chuck 4 clamp, inside forms semicircular cavities, and when clamping cross section is semicircular section bar, section bar matches with semicircular cavities, section bar is enclosed in semicircular cavities completely, thus stable firmly clamps section bar.Simultaneously due to Surface of profile and upper grip 3, lower chuck 4 fully contact, the part not easily crimp that section bar is clamped.By changing upper grip 3 and the lower chuck 4 of different size, adapting to different size cross section is semicircular section bar, expands and can clamp the size range that cross section is semicircular section bar.
Embodiment 3
The mid frame of a kind of cold-frame bender of the present embodiment, basic structure is with embodiment 1, its difference is: upper grip 3 lower surface of the present embodiment is semiellipse arc fluting, the upper surface of lower chuck 4 is semiellipse arc fluting, when upper grip 3 and lower chuck 4 clamp, inside forms oblong cavity, and when clamping cross section and being oval section bar, section bar matches with oblong cavity, section bar is enclosed in oblong cavity completely, thus stable firmly clamps section bar.Simultaneously due to Surface of profile and upper grip 3, lower chuck 4 fully contact, the part not easily crimp that section bar is clamped.By changing upper grip 3 and the lower chuck 4 of different size, adapting to different size cross section is oval section bar, expands and can clamp the size range that cross section is oval section bar.
Schematically above be described the utility model and embodiment thereof, this description does not have restricted, and also just one of the embodiment of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the frame mode similar to this technical scheme and embodiment without creationary, protection domain of the present utility model all should be belonged to.
Claims (4)
1. the mid frame of a cold-frame bender, comprise thrust unit (1), upper grip connecting rod (2), upper grip (3), lower chuck (4), lower chuck connecting rod (5) and gantry base (6), described upper grip connecting rod (2) is connected with the thrust unit (1) of the side of being located thereon, described lower chuck connecting rod (5) and the gantry base (6) be positioned at below it are connected, it is characterized in that: upper grip (3) removably connects with the upper grip connecting rod (2) of the side of being located thereon, lower chuck (4) and the lower chuck connecting rod (5) be positioned at below it removably connect, when upper grip (3) and lower chuck (5) clamp, inside forms circular cavity.
2. the mid frame of a kind of cold-frame bender according to claim 1, is characterized in that: the lower surface of described upper grip (3) is semi arch groove, and the upper surface of described lower chuck (5) is semi arch groove.
3. the mid frame of a kind of cold-frame bender according to claim 1 and 2, is characterized in that: described upper grip (3) lower surface, lower chuck (4) upper surface are lined with rubber sheet gasket.
4. the mid frame of a kind of cold-frame bender according to claim 3, is characterized in that: described thrust unit (1) is hydraulic drive mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825795.5U CN204320872U (en) | 2014-12-22 | 2014-12-22 | A kind of mid frame of cold-frame bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825795.5U CN204320872U (en) | 2014-12-22 | 2014-12-22 | A kind of mid frame of cold-frame bender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204320872U true CN204320872U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420825795.5U Expired - Fee Related CN204320872U (en) | 2014-12-22 | 2014-12-22 | A kind of mid frame of cold-frame bender |
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| Country | Link |
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| CN (1) | CN204320872U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604400A (en) * | 2018-12-29 | 2019-04-12 | 深圳大学 | Grating curvature device and its curved raster system |
| CN110695246A (en) * | 2019-10-18 | 2020-01-17 | 石家庄建工集团有限公司 | Hydraulic construction steel bar bending equipment |
| CN117031178A (en) * | 2023-09-27 | 2023-11-10 | 合肥联宝信息技术有限公司 | Ball falling experimental device |
-
2014
- 2014-12-22 CN CN201420825795.5U patent/CN204320872U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604400A (en) * | 2018-12-29 | 2019-04-12 | 深圳大学 | Grating curvature device and its curved raster system |
| CN110695246A (en) * | 2019-10-18 | 2020-01-17 | 石家庄建工集团有限公司 | Hydraulic construction steel bar bending equipment |
| CN117031178A (en) * | 2023-09-27 | 2023-11-10 | 合肥联宝信息技术有限公司 | Ball falling experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20161222 |