CN201755613U - Multi-clamp stretch forming machine - Google Patents
Multi-clamp stretch forming machine Download PDFInfo
- Publication number
- CN201755613U CN201755613U CN2010205092990U CN201020509299U CN201755613U CN 201755613 U CN201755613 U CN 201755613U CN 2010205092990 U CN2010205092990 U CN 2010205092990U CN 201020509299 U CN201020509299 U CN 201020509299U CN 201755613 U CN201755613 U CN 201755613U
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- feeding clip
- connection holes
- clip mechanism
- frame
- universal joint
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Abstract
The utility model discloses a multi-clamp stretch forming machine, relates to a plastic processing device for plate curved surface formation, and belongs to the field of mechanical engineering. The machine mainly consists of clamping mechanisms (1), a stretching mechanism (2) and a rack (3); and a row of clamping mechanisms (1) is arranged on two sides of the rack (3) respectively, each clamping mechanism (1) is provided with a lower connecting hole (4) and a rear connecting hole (5), and the connecting holes are connected with the stretching mechanism (2) through a pin shaft or a universal joint respectively. The machine can realize flexible control of multiple clamps, so that a workpiece is attached to a die more easily during stretch forming, the material utilization rate of the workpiece is remarkably improved, and better workpiece forming effect is achieved.
Description
Technical field
Many clamp-types stretch former of the present utility model relates to a kind of plastic working equipment that is used for the plate accessory curve generating, belongs to mechanical engineering field.
Background technology
During the pull-shaped workpiece of traditional stretch former, generally only produce the action that stretches with one or two hydraulic cylinder, jaw place sheet material is along laterally basic whole mobile; When the bigger workpiece of shaping cross curvature, tension that sheet material is horizontal and stretching strain distribute obviously inhomogeneous, and easily mould, drawing crack or forming defects such as wrinkling are not pasted in generation.In order to prevent these defectives, the control accuracy of equipment requires very high, the design complexity of control system, equipment price costliness; And pull-shapedly often need bigger process allowance, thereby cause the utilization rate of material to reduce with blank.
Summary of the invention
The purpose of this utility model is to provide a kind of many clamp-types stretch former, its frame both sides are being arranged a plurality of feeding clip mechanisms of a row respectively, each feeding clip mechanism is respectively equipped with bottom connection holes and rear portion connection holes, and each connection holes connects with drawing material mechanism by bearing pin or universal joint respectively.Many clamp-types stretch former utilizes the Pascal's theorem of multicylinder hydraulic system and the work hardening characteristic and the law of minimum resistance of material, realize the Flexible Control of a plurality of clamps simply, make workpiece easier subsides mould in pull-shaped process, significantly improve workpiece material utilization rate and pull-shaped quality.Many clamp-types stretch former is compared with traditional stretch former, can realize the stretch forming of curved-surface piece under more uniform tension and stretching strain effect, reduces the manufacturing cost of stretch former simultaneously.
Above-mentioned purpose of the present utility model is achieved in that accompanying drawings is as follows:
A kind of plate accessory curve generating plastic working equipment---many clamp-types stretch former, mainly by feeding clip mechanism 1, draw material mechanism 2 and frame 3 to form; Frame 3 both sides are being arranged a plurality of feeding clip mechanisms 1 of a row respectively, and each feeding clip mechanism 1 is respectively equipped with bottom connection holes 4 and rear portion connection holes 5, and each connection holes connects with drawing material mechanism 2 by bearing pin or universal joint respectively.
The material mechanism 2 of drawing that the bottom connection holes 4 of feeding clip mechanism 1 of the present utility model is arranged by universal joint and vertical direction connects; The rear portion connection holes 5 of feeding clip mechanism 1 draws material mechanism 2 to connect by universal joint with two, and one of them horizontal direction arranges that another incline direction is arranged.
The material mechanism 2 of drawing that the bottom connection holes 4 of feeding clip mechanism 1 of the present utility model is arranged by universal joint and vertical direction connects; The material mechanism 2 of drawing that the rear portion connection holes 5 of feeding clip mechanism 1 is arranged by universal joint and horizontal direction connects.
The 1 discharge opeing cylinder pressure that same direction is arranged in the two layback material mechanisms of many clamp-types stretch former frame 3 of the present utility model is controlled with one or more solenoid directional control valves; Can increase feeding clip mechanism 1 and draw the quantity of expecting mechanism 2, or two stretch formers use side by side.
The feeding clip mechanism 1 that arrange in frame of the present utility model 3 left sides and draw the feeding clip mechanism 1 that material mechanism 2 and frame 3 right sides arrange and draw the distance of expecting between the mechanism 2 adjustable.
Its die holder of many clamp-types stretch former of the present utility model can move up and down; The mould that is used can adopt entity mould 11, also can adopt the adjustable digitlization mould 12 of multiple spot.
Many clamp-types stretch former of the present utility model can dispose press mechanism 13.
Technique effect: many clamp-types stretch former of the present utility model, compare with traditional stretch former, by being respectively equipped with bottom connection holes 4 and rear portion connection holes 5 at each feeding clip mechanism 1; According to the Pascal's theorem of multicylinder hydraulic system and the work hardening characteristic and the law of minimum resistance of material, under the hydraulic cylinder effect in a row of identical hydraulic coupling, make each feeding clip mechanism produce different displacement and corner, thereby comply with the variation tendency of die curve and move and rotation along draw direction; The load path that causes being applied on the workpiece is more reasonable, and the tension of workpiece and the distribution of stretching strain are more even, more easily realizes the subsides mould of workpiece, reduces by pull-shaped process allowance, improves stock utilization and forming quality.Simple, the cheap hydraulic system that adopts many clamp-types stretch former realizes the Flexible Control of a plurality of clamps, obtains than the better component shaping effect of traditional stretch former.
Description of drawings
Fig. 1 is the schematic diagram of many clamp-types stretch former, wherein:
Fig. 1 (a) is a front view;
Fig. 1 (b) is a vertical view.
Fig. 2 is the schematic diagram of feeding clip mechanism.
Fig. 3 is left and right sides feeding clip mechanism and draws the adjustable many clamp-types stretch former schematic diagram of distance between the material mechanism.
Fig. 4 is a die holder when having the function of moving up and down, the pull-shaped schematic diagram that is used with the entity mould.
Fig. 5 is a pull-shaped schematic diagram when being used with the adjustable digitlization mould of multiple spot.
Pull-shaped schematic diagram when Fig. 6 is the configuration press mechanism.
Wherein: 1. feeding clip mechanism, 2. draw material mechanism, 3. frame, 4. bottom connection holes, 5. rear portion connection holes, 6. hydraulic cylinder, 7. material folding frame, 8. the material folding piece that connects with piston, 9. the material folding piece that connects with the material folding frame, 10. sheet material, 11. entity moulds, 12. the adjustable digitlization mould of multiple spot, 13. press mechanisms.
The specific embodiment
Further specify the particular content of the present utility model and the course of work thereof below in conjunction with embodiment shown in the drawings.
Many clamp-types stretch former of the present utility model, mainly by feeding clip mechanism 1, draw material mechanism 2 and frame 3 to constitute; Frame 3 both sides are being arranged a plurality of feeding clip mechanisms 1 of a row respectively, and each feeding clip mechanism 1 is respectively equipped with bottom connection holes 4 and rear portion connection holes 5, and each connection holes connects with drawing material mechanism 2 by bearing pin or universal joint respectively.When drawing material mechanism 2 to adopt three hydraulic cylinders with feeding clip mechanism is joining, the material mechanism 2 of drawing that the bottom connection holes 4 of feeding clip mechanism 1 is arranged by universal joint and vertical direction connects; The rear portion connection holes 5 of feeding clip mechanism 1 draws material mechanism 2 to connect by universal joint with two, and one of them horizontal direction arranges that another incline direction is arranged.When drawing material mechanism 2 to adopt two hydraulic cylinders with feeding clip mechanism is joining, the material mechanism 2 of drawing that the bottom connection holes 4 of feeding clip mechanism 1 is arranged by universal joint and vertical direction connects; The material mechanism 2 of drawing that the rear portion connection holes 5 of feeding clip mechanism 1 is arranged by universal joint and horizontal direction connects.By adjusting the hydraulic coupling value that different directions draws material organization hydraulic pressure cylinder, can adjust the tensile force and the draw direction of feeding clip mechanism.Feeding clip mechanism 1 is provided with two place's connection holes, help many clamp-types stretch former and utilize the Pascal's theorem of multicylinder hydraulic system and the work hardening characteristic and the law of minimum resistance of material, under the hydraulic cylinder effect in a row of identical hydraulic coupling value, each feeding clip mechanism is complied with the variation tendency of die curve and is moved and rotation, more easily realize the subsides mould of workpiece, thereby improve workpiece material utilization rate and pull-shaped quality.For simplified control system, the discharge opeing cylinder pressure that same direction is arranged is controlled with a solenoid directional control valve.When the width of workpiece hour, can only use a plurality of feeding clip mechanisms 1 of a row and draw several mechanisms in the material mechanism 2; When the width of workpiece is big, can increase feeding clip mechanism 1 and draw the quantity of material mechanism 2, or two stretch formers uses side by side.When the length variations of workpiece is big, can be by adjusting a plurality of feeding clip mechanisms 1 of arranging in frame 3 left sides and drawing a plurality of feeding clip mechanisms 1 that material mechanism 2 and frame 3 right sides arrange and draw distance between the material mechanism 2, the shaping of realization workpiece.Feeding clip mechanism 1 is made up of hydraulic cylinder 6, material folding frame 7 and material folding piece; Hydraulic cylinder 6 is integral type or fabricated structure with material folding frame 7; The material folding contact-making surface of material folding piece adopts snap or flow-type structure; The material folding piece is separately fixed on the piston and material folding frame of hydraulic cylinder.Many clamp-types stretch former die holder can move up and down; Its mould that is used can adopt entity mould 11, also can adopt the adjustable digitlization mould 12 of multiple spot, better tackles the demand of many kinds work piece production.Many clamp-types stretch former can dispose press mechanism 13.Press mechanism 13 applies certain pressure to workpiece under the cooperation of feeding clip mechanism 1 and mould, make sheet material better paste mould, and can shaping wave shape wave workpiece or complex-shaped workpieces.
Fig. 1 is the schematic diagram of many clamp-types stretch former, and wherein: Fig. 1 (a) is a front view; Fig. 1 (b) is a vertical view.Mainly by feeding clip mechanism 1, draw material mechanism 2 and frame 3 to form; Frame 3 both sides are being arranged 10 feeding clip mechanisms 1 of a row respectively, and each feeding clip mechanism 1 is respectively equipped with bottom connection holes 4 and rear portion connection holes 5, and each connection holes connects with drawing material mechanism 2 by universal joint respectively.The material mechanism 2 of drawing that the bottom connection holes 4 of feeding clip mechanism 1 is arranged by universal joint and vertical direction connects; The rear portion connection holes 5 of feeding clip mechanism 1 draws material mechanism 2 to connect by universal joint with two, and one of them horizontal direction arranges that another incline direction is arranged.By adjusting the hydraulic coupling value that different directions draws material mechanism 2 hydraulic cylinders, can adjust the tensile force and the draw direction of feeding clip mechanism 1.
Fig. 2 is the schematic diagram of feeding clip mechanism 1, is mainly constituted by hydraulic cylinder 6, material folding frame 7 and material folding piece; The hydraulic cylinder 6 and the material folding frame 7 of feeding clip mechanism 1 are integral structure.When need clamping sheet material, the oilholes above the hydraulic cylinder 6 advance hydraulic oil, and following oilhole goes out hydraulic oil, thereby the material folding piece 8 that the control hydraulic cylinder drives and piston links moves downward, with the material folding piece 9 common clamping sheet materials that link with material folding frame 7.In the time of need unclamping sheet material, hydraulic cylinder 6 following oilholes advance hydraulic oil, and top oilhole goes out hydraulic oil, thereby the material folding piece 8 that control hydraulic cylinder 6 drives and piston links moves upward, and leaves the material folding piece 9 that links with material folding frame 7, unclamps sheet material.Feeding clip mechanism 1 is provided with bottom connection holes 4 and rear portion connection holes 5, and each connection holes connects with drawing material mechanism 2 by universal joint respectively.
Fig. 3 is left and right sides feeding clip mechanism 1 and draws the adjustable many clamp-types stretch former schematic diagram of distance between the material mechanism 2.When the length variations of workpiece is big, can be by adjusting a plurality of feeding clip mechanisms 1 of arranging in frame 3 left sides and drawing a plurality of feeding clip mechanisms 1 that material mechanism 2 and frame 3 right sides arrange and draw the distance of expecting between the mechanism 2, the length of corresponding different workpieces.After the distance of many clamp-types stretch former left and right sides feeding clip mechanism is adjusted, can use the self-locking mechanism that constitutes by hydraulic cylinder or securing member to pin the framework that draws material mechanism 2.For the simplified apparatus structure, a plurality of feeding clip mechanisms 1 of moving frame 3 left sides or right side arrangement are expected mechanism 2 with drawing separately.In order further to increase the width of stretch former, can increase feeding clip mechanism 1 and draw the quantity of expecting mechanism 2, or two stretch formers are used side by side.
Fig. 4 is a die holder when having the function of moving up and down, the pull-shaped schematic diagram that is used with entity mould 11.When die holder has the function of moving up and down, can expect mechanism, further simplified apparatus structure without drawing of incline direction layout.At first, by a horizontally disposed discharge opeing cylinder pressure sheet material 10 is applied pulling force and carry out prestretched; Secondly, by moving and vertically arrange the shaping of drawing the hydraulic cylinder of expecting mechanism to make sheet material 10 paste mould gradually and realizing sheet material 10 on the die holder.At difform mould, can realize the stretch forming of sheet material 10 by the control hydraulic cylinder travel.
Fig. 5 is a pull-shaped schematic diagram when being used with the adjustable digitlization mould 12 of multiple spot.The adjustable digitlization mould 12 of multiple spot is conversion mould shape face arbitrarily, can better tackle the demand of many kinds workpiece flexible production.
Pull-shaped schematic diagram when Fig. 6 is configuration press mechanism 13.Press mechanism 13 applies certain pressure to sheet material under the cooperation of feeding clip mechanism 1 and the adjustable digitlization mould 12 of multiple spot, not only can make sheet material 10 better paste mould, and can stretch forming waveform workpiece or complex-shaped workpieces.
Illustrate the course of work of many clamp-types stretch former below.At first, determine to use feeding clip mechanism and draw the quantity of material mechanism and the initial position of feeding clip mechanism, by adjusting the stroke that draws material organization hydraulic pressure cylinder that different directions is arranged, the location of realizing a plurality of clamps according to the size of workpiece.Then, sheet material is put into the tong chops of feeding clip mechanism, clamp sheet material by feeding clip mechanism.After the material folding,, realize prestretched to sheet material by adjusting the hydraulic cylinder travel that draws material mechanism that horizontal direction is arranged.In forming process, can be by being that unit adjusts that the hydraulic cylinder travel that draws material mechanism that different directions arranges pushes up with going up of hydraulic coupling or die holder or press mechanism is exerted pressure to sheet material with row, the tensile force and the draw direction of control feeding clip mechanism, the realization feeding clip mechanism is complied with the variation tendency of die curve and is moved and rotation, realizes the subsides mould of workpiece.In order to realize the subsides mould of workpiece better, can adjust the action sequencing that draws top, press mechanism etc. on material mechanism and the die holder of vertical direction, horizontal direction, incline direction layout.After the pull-shaped end, realize each clamp loose to sheet material by the hydraulic cylinder travel of adjusting feeding clip mechanism.
Many clamp-types stretch former of the present utility model is by being provided with two connection holes respectively at each feeding clip mechanism; Utilize the Pascal's theorem of multicylinder hydraulic system and the work hardening characteristic and the law of minimum resistance of material, under the hydraulic cylinder effect in a row of identical hydraulic coupling, make a plurality of feeding clip mechanisms can comply with the variation tendency and the mobile and rotation of die curve; Thereby the load path that causes being applied on the workpiece is more reasonable, and the tension of workpiece and the distribution of stretching strain are more even, realizes the subsides mould of workpiece, reduces by pull-shaped process allowance, improves stock utilization and forming quality.Simple, the cheap hydraulic system that adopts many clamp-types stretch former has realized the Flexible Control of a plurality of clamps, thereby obtains than the better component shaping effect of traditional stretch former.
Claims (8)
1. clamp-type stretch former more than a kind, mainly by feeding clip mechanism (1), draw material mechanism (2) and frame (3) to form; It is characterized in that frame (3) both sides are being arranged row's a plurality of feeding clip mechanisms (1) respectively, each feeding clip mechanism (1) is respectively equipped with bottom connection holes (4) and rear portion connection holes (5), and each connection holes connects with drawing material mechanism (2) by bearing pin or universal joint respectively.
2. many clamp-types stretch former according to claim 1 is characterized in that, the material mechanism (2) of drawing that the bottom connection holes (4) of described feeding clip mechanism (1) is arranged by universal joint and vertical direction connects; The rear portion connection holes (5) of described feeding clip mechanism draws material mechanism (2) to connect by universal joint with 2, and one of them horizontal direction arranges that another incline direction is arranged.
3. many clamp-types stretch former according to claim 1 is characterized in that, the material mechanism (2) of drawing that the bottom connection holes (4) of described feeding clip mechanism (1) is arranged by universal joint and vertical direction connects; The material mechanism (2) of drawing that the rear portion connection holes (5) of described feeding clip mechanism is arranged by universal joint and horizontal direction connects.
4. according to claim 1,2 or 3 described many clamp-types stretch formers, it is characterized in that, described feeding clip mechanism (1) is made up of hydraulic cylinder (6), material folding frame (7) and material folding piece, hydraulic cylinder (6) is integral type or fabricated structure with material folding frame (7), the material folding contact-making surface of material folding piece adopts snap or flow-type structure, and the material folding piece is separately fixed on the piston and material folding frame of hydraulic cylinder.
5. many clamp-types stretch former according to claim 1 is characterized in that, the described a plurality of hydraulic cylinders of a row of same direction arrangement in the material mechanism (2) that draw are controlled with one or more solenoid directional control valves; Described feeding clip mechanism (1) and draw the quantity of material mechanism (2) to increase, or two stretch formers use side by side.
6. many clamp-types stretch former according to claim 1, it is characterized in that the feeding clip mechanism (1) that arrange in described frame (3) left side and draw the feeding clip mechanism (1) of material mechanism (2) and the arrangement of frame (3) right side and draw the distance of expecting between the mechanism (2) adjustable.
7. many clamp-types stretch former according to claim 1 is characterized in that its die holder can move up and down; The mould that is mated use adopts entity mould (11), also can adopt the adjustable digitlization mould of multiple spot (12).
8. many clamp-types stretch former according to claim 1 is characterized in that disposing press mechanism (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205092990U CN201755613U (en) | 2010-08-28 | 2010-08-28 | Multi-clamp stretch forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205092990U CN201755613U (en) | 2010-08-28 | 2010-08-28 | Multi-clamp stretch forming machine |
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| Publication Number | Publication Date |
|---|---|
| CN201755613U true CN201755613U (en) | 2011-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205092990U Expired - Lifetime CN201755613U (en) | 2010-08-28 | 2010-08-28 | Multi-clamp stretch forming machine |
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| CN (1) | CN201755613U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947593A (en) * | 2010-08-28 | 2011-01-19 | 吉林大学 | Multiclamp type stretch forming machine |
| CN102327943A (en) * | 2011-11-02 | 2012-01-25 | 沈阳飞机工业（集团）有限公司 | Flexible hydraulic jaw |
| CN108746332A (en) * | 2018-07-27 | 2018-11-06 | 吉林大学 | A kind of tension and compression composite board stretch former |
| CN113020390A (en) * | 2021-02-08 | 2021-06-25 | 中国重型机械研究院股份公司 | Heavy-load jaw clamping block |
-
2010
- 2010-08-28 CN CN2010205092990U patent/CN201755613U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947593A (en) * | 2010-08-28 | 2011-01-19 | 吉林大学 | Multiclamp type stretch forming machine |
| CN101947593B (en) * | 2010-08-28 | 2012-06-06 | 吉林大学 | Multiclamp type stretch forming machine |
| CN102327943A (en) * | 2011-11-02 | 2012-01-25 | 沈阳飞机工业（集团）有限公司 | Flexible hydraulic jaw |
| CN102327943B (en) * | 2011-11-02 | 2013-10-09 | 沈阳飞机工业（集团）有限公司 | Flexible hydraulic jaw |
| CN108746332A (en) * | 2018-07-27 | 2018-11-06 | 吉林大学 | A kind of tension and compression composite board stretch former |
| CN113020390A (en) * | 2021-02-08 | 2021-06-25 | 中国重型机械研究院股份公司 | Heavy-load jaw clamping block |
| CN113020390B (en) * | 2021-02-08 | 2022-10-18 | 中国重型机械研究院股份公司 | Heavy-load jaw clamping block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110309 Effective date of abandoning: 20120606 |