CN109967575A - A kind of shape extrusion tooling - Google Patents
A kind of shape extrusion tooling Download PDFInfo
- Publication number
- CN109967575A CN109967575A CN201910355231.7A CN201910355231A CN109967575A CN 109967575 A CN109967575 A CN 109967575A CN 201910355231 A CN201910355231 A CN 201910355231A CN 109967575 A CN109967575 A CN 109967575A
- Authority
- CN
- China
- Prior art keywords
- platform
- pressing plate
- tooling
- profile
- calibration apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B21D7/04—Bending rods, profiles, or tubes over a movably-arranged forming menber
-
- 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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
Abstract
The present invention relates to shape extrusion technical fields, specifically a kind of shape extrusion tooling, including tooling platform, bending mechanism and calibration apparatus, the bending mechanism is mounted on above tooling platform and realizes bending work by the driving mechanism driving in tooling platform, the calibration apparatus is mounted on the tooling platform of bending mechanism side, the calibration apparatus realizes the press-bending of profile by the press plate position changed in calibration apparatus, by effective cooperation between tooling platform, bending mechanism and calibration apparatus, effective bending of profile is realized well.Compared with prior art, convenient that different degrees of bending is carried out to profile by setting bending mechanism and the calibration apparatus that can be manually adjusted the beneficial effects of the present invention are: the present invention provides a kind of shape extrusion tooling, it is more convenient.
Description
Technical field
The present invention relates to shape extrusion technical field, specifically a kind of shape extrusion tooling.
Background technique
Profile is made of that iron or steel and the material with some strength and toughness pass through the techniques such as rolling, extrusion, casting
The object with certain geometrical shape.The apparent size that this kind of material has is certain, and section is in certain shapes, has centainly
Mechanical and physical character.Profile, which can be used alone, can also be further processed into other manufactures, be usually used in building structure and manufacture
Installation.Mechanical engineer can select the ginsengs such as concrete shape, material, condition of heat treatment, the mechanical property of profile according to design requirement
Number requires for profile to be split, is then further processed or is heat-treated, reach the essence of design further according to specific size shape
Degree requires.Chinese utility model patent CN201821023740.7 discloses a kind of processing die for aluminum section bar clapper die spotting press, for aluminium
The processing such as matter profile compacting, but be a lack of effective bending structure and different degrees of bending is carried out according to demand to profile.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the present invention provides a kind of shape extrusion tooling, by setting
The calibration apparatus setting bending mechanism and can manually adjusting, it is convenient that different degrees of bending is carried out to profile, it is more convenient.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of shape extrusion tooling, including tooling platform, bending mechanism and calibration apparatus, the bending mechanism are mounted on
Bending work is realized above tooling platform and by the driving mechanism driving in tooling platform, and the calibration apparatus is mounted on bending
On the tooling platform of mechanism side, the calibration apparatus realizes the press-bending of profile by the press plate position changed in calibration apparatus,
By effective cooperation between tooling platform, bending mechanism and calibration apparatus, effective bending of profile is realized well.
The tooling platform includes platform body and the master gear and pinion that are mounted on inside platform body, the tooling
The driving machine for driving major-minor gear is also equipped with below platform, the driving machine is passed by tooth sector box and pinion
Driving master gear movement after dynamic connection, the pinion and master gear engagement, after the driving machine is powered by external power supply, into
One step drives master gear by tooth sector box and pinion, and master gear passes through the linkage of the disk of axis and bending mechanism.
Preferably, the driving machine is the existing common driving machine that box is controlled with integral type, it may be convenient to which control is driven
Motivation positive and negative rotation and effectively control revolving speed.
The bending mechanism includes for suppressing the disk of profile and being fixedly mounted on disk for blocking consolidating for profile
Part, the disk and master gear are determined by the axis linkage in the middle part of master gear, and the axis is put down after passing through tooling platform with tooling
The position of platform connection is provided with the position-limiting drum for limiting axis, injects lubricating oil in the position-limiting drum, workpiece is avoided excessively to grind
Damage, the fixing piece use middle part to have the metal plate of square hole or can tie down the retaining ring structure of profile end, fix profile
Behind end, disk rotational drives simultaneously extrudate, realizes shape bending.
Preferably, the disk outer ring of the disk and profile contact is socketed with the guard ring for preventing from weighing wounded profile, described anti-
Guard ring is using rubber or the production of PP plastics or nylon material.
Preferably, the fixing piece of the bending mechanism is the retaining ring structure that can block profiled ends.
The calibration apparatus includes the pressing plate that can be slided, and is equipped on the pressing plate ontology of the pressing plate and profile joint place
For cooperating the roller of compacting profile with disk, the pressing plate is fixedly installed with the hand for driving pressing plate far from the side of profile
Handle is provided with through-hole below pressing plate, and the slide bar being equipped with for pressing plate sliding is penetrated in through-hole, and the slide bar is fixedly mounted on
Above tooling platform, pressing plate is driven by driving handle and cooperates disk extrudate, the bending of profile is realized, using different journeys
When the dynamics driving handle of degree, the distance between disk and roller are of different sizes, and the degree of shape bending is not also identical, very just
Just.
Further, the pressing plate of the calibration apparatus is the square tubular structure that side is provided with opening, and roller installation is solid
It is scheduled in square tube, the panel for connecting with slide bar, the panel and platform upper surface is provided on the lower end surface of the square tube
Baffle it is parallel.
Preferably, the protective jacket for preventing from weighing wounded profile is socketed on the circumference of the roller, the protective jacket uses rubber
Or PP plastics or nylon material make.
Further, the surrounding of the platform body of the tooling platform is mounted on the supporting leg for being used to support platform, described
Platform body is hollow structure, and major-minor gear is installed in platform body, and the platform body upper surface is equipped with to be slided for fixed
The baffle of bar, the baffle, which is parallel to each other, is mounted on platform body upper surface, and it is sliding for pressing plate that at least one is installed between baffle
The junction of dynamic slide bar, the slide bar and pressing plate is socketed with the sliding sleeve for pressing plate sliding, and lubricating oil is injected in sliding sleeve, described
Pressing plate passes through the stock in the middle part of being mounted on and connects with handle, the handle and pressing plate linkage.
Compared with prior art, the beneficial effects of the present invention are: the present invention provides a kind of shape extrusion tooling, by setting
The calibration apparatus setting bending mechanism and can manually adjusting, it is convenient that different degrees of bending is carried out to profile, it is more convenient.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is overall schematic of the present invention；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is calibration apparatus structural schematic diagram of the present invention.
In figure:
1, tooling platform, 11, platform body, 12, master gear, 13, pinion, 14, tooth sector box, 15, driving machine；
2, bending mechanism, 21, disk, 22, position-limiting drum, 23, fixing piece；
3, calibration apparatus, 31, pressing plate, 32, handle, 33, roller, 34, slide bar；
4, profile.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.In addition, unless otherwise defined, the technical term or scientific term used herein should be the present invention
The ordinary meaning that personage in fields with general technical ability is understood.Present patent application specification and claim
" first ", " second " used in book and similar word are not offered as any sequence, quantity or importance, and only use
To distinguish different component parts.Equally, the similar word such as "one" or " one " also not necessarily indicates quantity limitation." comprising "
Or the similar word such as "comprising" means that the element or object that occur before the word cover the member for appearing in the word presented hereinafter
Part perhaps object and its equivalent and be not excluded for other elements or object.The similar word such as " connection " or " connected " is not
It is defined in physics or mechanical connection, but may include electrical connection, it is either direct or indirect.
"upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, after the absolute position for being described object changes, then should
Relative positional relationship may also correspondingly change.
Embodiment one
As shown in Figure 1, a kind of shape extrusion tooling that the present invention designs, including tooling platform 1, bending mechanism 2 and tune
Calibration device 3, the bending mechanism 2 are mounted on 1 top of tooling platform and realize folding by the driving mechanism driving in tooling platform 1
Curved work, the calibration apparatus 3 are mounted on the tooling platform 1 of 2 side of bending mechanism, and the calibration apparatus 3 is adjusted by changing
Press plate position in calibration device 3 realizes that the 4 of profile bends, and passes through having between tooling platform 1, bending mechanism 2 and calibration apparatus 3
Effect cooperation, realizes effective bending of profile 4 well.
As shown in Figs. 1-2, the tooling platform 1 includes platform body 11 and the master gear being mounted on inside platform body 11
12 and pinion 13, the lower section of the tooling platform 11 be also equipped with the driving machine 15 for driving major-minor gear, the driving
Machine 15 is sequentially connected by tooth sector box 14 and pinion 13, drives master gear after the pinion 13 and the engagement of master gear 12
12 movements after the driving machine 15 is powered by external power supply, further pass through tooth sector box 14 and the driving master of pinion 13
Gear 12, master gear 12 are linked by the disk 21 of axis and bending mechanism 2, further realize the press-bending of profile 4；
The surrounding of the platform body 11 of the tooling platform 1 is mounted on the supporting leg for being used to support platform, the platform sheet
Body 11 is hollow structure, and major-minor gear is installed in platform body 11, and 11 upper surface of platform body is equipped with to be slided for fixed
The baffle of bar 34, the baffle, which is parallel to each other, is mounted on 1 upper surface of platform body, and at least one is installed between baffle and is used for pressing plate
The junction of the slide bar 34 of 31 slidings, the slide bar 34 and pressing plate 31 is socketed with the sliding sleeve slided for pressing plate 31, note in sliding sleeve
Enter lubricating oil, the pressing plate 31 passes through the stock for being mounted on middle part and handle 32 connects, and the handle 32 and pressing plate 31 link.
Preferably, the driving machine 15 is the existing common driving machine that box is controlled with integral type, it may be convenient to be controlled
15 positive and negative rotation of driving machine and effectively control revolving speed.
As shown in Fig. 2, the bending mechanism 2 includes using for suppressing the disk 21 of profile and being fixedly mounted on disk 21
In the fixing piece 23 for blocking profile 4, the axis linkage of the disk 21 and master gear 12 by 12 middle part of master gear, the axis
After tooling platform 1 and the position of the connection of tooling platform 1 is provided with the position-limiting drum 22 for limiting axis, the position-limiting drum 22
Interior injection lubricating oil, avoids workpiece excessive wear, and the fixing piece 23 uses middle part to have the metal plate of square hole or can tie down
The retaining ring structure of profile end, after fixing profile end, disk 21 is rotated, and is driven simultaneously extrudate, is realized shape bending.
Preferably, the disk outer ring of the disk 21 and profile contact is socketed with the guard ring for preventing from weighing wounded profile, described
Guard ring is using rubber or the production of PP plastics or nylon material.
As shown in figure 3, the calibration apparatus 3 includes the pressing plate 31 that can slide, the pressing plate 31 and profile joint place
Roller 33 for cooperating compacting profile with disk, the fixed peace in side of the pressing plate 31 far from profile are installed on pressing plate ontology
Equipped with for driving the handle 32 of pressing plate, the lower section of pressing plate 31 is provided with through-hole, penetrates to be equipped in through-hole and slide for pressing plate
Slide bar, the slide bar 34 is fixedly mounted on the top of tooling platform 1, drives pressing plate 31 by driving handle 32 and cooperate disk 21
Extrudate 4 realizes the bending of profile 4, when using different degrees of dynamics driving handle 32, between disk 21 and roller 33
Apart from of different sizes, 4 the degree of bending of profile is not also identical, very convenient.
Further, the pressing plate 31 of the calibration apparatus 3 is the square tubular structure that side is provided with opening, and roller 33 is pacified
Dress is fixed in square tube, and the panel for connecting with slide bar 34, the panel and platform are provided on the lower end surface of the square tube
The baffle of upper surface is parallel.
Preferably, the protective jacket for preventing from weighing wounded profile is socketed on the circumference of the roller 33, the protective jacket uses rubber
Glue or the production of PP plastics or nylon material.
Embodiment two
In the above-described embodiments, the handle of calibration apparatus 3 is connected by long bolt and pressing plate 31, the long bolt and pressing plate
31, which connect realization screw rod energy opposing platen 31 with bearing fit by screw rod end axis, is freely rotated；The company of the long bolt and baffle
It meets place to be cooperatively connected by helicitic texture, when rotating control screw rod promotion pressing plate by handle, passes through the thread turns meter of rotation
The movement that the amount of movement of pressing plate replaces manual driving handle to realize pressing plate is measured, so that the movement of pressing plate is more stable, so that type
The curved circular arc of material is more uniform.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of shape extrusion tooling, which is characterized in that including tooling platform, bending mechanism and calibration apparatus, the bending
Mechanism is mounted on above tooling platform and realizes bending work, the calibration apparatus by the driving mechanism driving in tooling platform
It is mounted on the tooling platform of bending mechanism side, the calibration apparatus is by changing the press plate position realization type in calibration apparatus
The press-bending of material.
2. a kind of shape extrusion tooling according to claim 1, which is characterized in that the tooling platform includes platform sheet
Body and the master gear and pinion being mounted on inside platform body are also equipped with for driving major-minor below the tooling platform
The driving machine of gear, the driving machine are sequentially connected by tooth sector box and pinion, the pinion and master gear engagement
Driving master gear movement afterwards.
3. a kind of shape extrusion tooling according to claim 1, which is characterized in that the bending mechanism includes for pressing
It the disk of profile processed and is fixedly mounted on disk for blocking the fixing piece of profile, the disk and master gear pass through master gear
The axis at middle part links, and the axis passes through the position connected after tooling platform with tooling platform and is provided with for limiting axis
Position-limiting drum.
4. a kind of shape extrusion tooling according to claim 1, which is characterized in that the calibration apparatus includes that can slide
Roller for cooperating compacting profile with disk is installed on the pressing plate ontology of dynamic pressing plate, the pressing plate and profile joint place,
The pressing plate is fixedly installed with the handle for driving pressing plate far from the side of profile, and through-hole, through-hole are provided with below pressing plate
The slide bar being equipped with for pressing plate sliding is inside penetrated, the slide bar is fixedly mounted on above tooling platform.
5. a kind of shape extrusion tooling according to claim 1 or 2 or 3 or 4, which is characterized in that the tooling platform
The surrounding of platform body be mounted on the supporting leg for being used to support platform, the platform body is hollow structure, in platform body
Major-minor gear is installed, the platform body upper surface is equipped with the baffle for fixed slip bar.
6. a kind of shape extrusion tooling according to claim 5, which is characterized in that the baffle, which is parallel to each other, to be mounted on
Platform body upper surface, installation at least one is used for the slide bar of pressing plate sliding, the junction of the slide bar and pressing plate between baffle
It is socketed with the sliding sleeve for pressing plate sliding, injects lubricating oil in sliding sleeve.
7. a kind of shape extrusion tooling according to claim 6, which is characterized in that the pressing plate is by being mounted on middle part
Stock connected with handle, the handle and pressing plate linkage.
8. a kind of shape extrusion tooling according to claim 1 or 4, which is characterized in that the pressing plate of the calibration apparatus
The square tubular structure of opening is provided with for side, roller is fixed in square tube, is provided on the lower end surface of the square tube
Panel for connecting with slide bar, the panel are parallel with the baffle of platform upper surface.
9. a kind of shape extrusion tooling according to claim 8, which is characterized in that be socketed on the circumference of the roller
Prevent from weighing wounded the protective jacket of profile, the protective jacket is using rubber or the production of PP plastics or nylon material.
10. a kind of shape extrusion tooling according to claim 1 or 3, which is characterized in that the fixation of the bending mechanism
Part is the cyclic structure that can block profiled ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355231.7A CN109967575A (en) | 2019-04-29 | 2019-04-29 | A kind of shape extrusion tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355231.7A CN109967575A (en) | 2019-04-29 | 2019-04-29 | A kind of shape extrusion tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109967575A true CN109967575A (en) | 2019-07-05 |
Family
ID=67087101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355231.7A Pending CN109967575A (en) | 2019-04-29 | 2019-04-29 | A kind of shape extrusion tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109967575A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020095648A (en) * | 2001-06-15 | 2002-12-28 | 현대자동차주식회사 | Hydro-bending system |
| DE10330753A1 (en) * | 2003-07-07 | 2005-02-10 | Rosenberger Ag | Bending machine esp. for tubes has two bending heads with associated roll bending heads to form integrated units |
| CN101146629A (en) * | 2005-03-22 | 2008-03-19 | 蒂森克虏伯钢铁股份公司 | Device for the free forming and bending of longitudinal profiles, particularly pipes, and a combined device for free forming and bending as well as draw-bending longitudinal profiles, particularly pip |
| CN201618767U (en) * | 2010-02-09 | 2010-11-03 | 中煤第三建设公司机电安装工程处 | U-shaped bolt bending machine |
| KR20110041797A (en) * | 2009-10-16 | 2011-04-22 | 최명기 | Loop bender and method for loop bending using the same |
| CN204294693U (en) * | 2014-11-17 | 2015-04-29 | 汝州郑铁三佳道岔有限公司 | A kind of twist and warping device of liftable rail |
| CN105251819A (en) * | 2015-11-18 | 2016-01-20 | 宁波泰尔汽车部件有限公司 | Bending and blanking device |
| DE202017100622U1 (en) * | 2016-12-15 | 2017-03-09 | Shanxi Zhongde Industry & Technology Machinery manufacturing co., ltd | bending machine |
| CN206382379U (en) * | 2016-12-31 | 2017-08-08 | 中国化学工程第十四建设有限公司 | A kind of Industrial Metal pipe clamp producing device |
| CN206966374U (en) * | 2017-07-27 | 2018-02-06 | 上海长空机械有限公司 | Cantilevered aluminium section bar bending roll former |
| CN207533737U (en) * | 2017-08-15 | 2018-06-26 | 浙江荔禾电气科技有限公司 | A kind of nine folded section organisation of workings for Electric Appliance Cabinet |
| CN109290408A (en) * | 2018-11-21 | 2019-02-01 | 河南省中智重型机械设备有限公司 | Push-pull-type formed steel bending machine |
| CN209867055U (en) * | 2019-04-29 | 2019-12-31 | 奥克坦姆系统科技（苏州）有限公司 | Frock is used in section bar processing |
-
2019
- 2019-04-29 CN CN201910355231.7A patent/CN109967575A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020095648A (en) * | 2001-06-15 | 2002-12-28 | 현대자동차주식회사 | Hydro-bending system |
| DE10330753A1 (en) * | 2003-07-07 | 2005-02-10 | Rosenberger Ag | Bending machine esp. for tubes has two bending heads with associated roll bending heads to form integrated units |
| CN101146629A (en) * | 2005-03-22 | 2008-03-19 | 蒂森克虏伯钢铁股份公司 | Device for the free forming and bending of longitudinal profiles, particularly pipes, and a combined device for free forming and bending as well as draw-bending longitudinal profiles, particularly pip |
| KR20110041797A (en) * | 2009-10-16 | 2011-04-22 | 최명기 | Loop bender and method for loop bending using the same |
| CN201618767U (en) * | 2010-02-09 | 2010-11-03 | 中煤第三建设公司机电安装工程处 | U-shaped bolt bending machine |
| CN204294693U (en) * | 2014-11-17 | 2015-04-29 | 汝州郑铁三佳道岔有限公司 | A kind of twist and warping device of liftable rail |
| CN105251819A (en) * | 2015-11-18 | 2016-01-20 | 宁波泰尔汽车部件有限公司 | Bending and blanking device |
| DE202017100622U1 (en) * | 2016-12-15 | 2017-03-09 | Shanxi Zhongde Industry & Technology Machinery manufacturing co., ltd | bending machine |
| CN206382379U (en) * | 2016-12-31 | 2017-08-08 | 中国化学工程第十四建设有限公司 | A kind of Industrial Metal pipe clamp producing device |
| CN206966374U (en) * | 2017-07-27 | 2018-02-06 | 上海长空机械有限公司 | Cantilevered aluminium section bar bending roll former |
| CN207533737U (en) * | 2017-08-15 | 2018-06-26 | 浙江荔禾电气科技有限公司 | A kind of nine folded section organisation of workings for Electric Appliance Cabinet |
| CN109290408A (en) * | 2018-11-21 | 2019-02-01 | 河南省中智重型机械设备有限公司 | Push-pull-type formed steel bending machine |
| CN209867055U (en) * | 2019-04-29 | 2019-12-31 | 奥克坦姆系统科技（苏州）有限公司 | Frock is used in section bar processing |
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