CN201880780U - Material clamping block used on multi-clamp type stretch forming machine - Google Patents
Material clamping block used on multi-clamp type stretch forming machine Download PDFInfo
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- CN201880780U CN201880780U CN2010205189271U CN201020518927U CN201880780U CN 201880780 U CN201880780 U CN 201880780U CN 2010205189271 U CN2010205189271 U CN 2010205189271U CN 201020518927 U CN201020518927 U CN 201020518927U CN 201880780 U CN201880780 U CN 201880780U
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- material folding
- folding piece
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- material clamping
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Abstract
The utility model discloses a material clamping block used on a multi-clamp type stretch forming machine, which relates to plastic processing equipment for plate curved surface forming and belongs to the field of mechanical engineering. Pairs of material claming blocks are arranged in two rows, and the two rows of material claming blocks are respectively arranged on the left and the right sides of the stretch forming machine; and a clearance is reserved between every two adjacent material clamping blocks, a ridge and two corners at the front end of the material clamping surface of each material clamping block are big round corners, round corners are also arranged in the positions of the ridges at the left and the right ends of the material clamping surface, which are adjacent to other material clamping blocks. With the design, the material clamping blocks and a material clamping mechanism are allowed to passively and equivalently rotate, oscillate or stretch to form an arc-shaped or waved linear arrangement, so as to realize the flexible control of a plurality of clamps of the stretch forming machine; that a workpiece is jointed with a mold during stretch forming is facilitated, the material utilization ratio of the workpiece is remarkably improved, and the stretch forming of complicate workpieces is realized.
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 with the material folding piece, belongs to mechanical engineering field.
Background technology
During the pull-shaped workpiece of traditional stretch former, jaw place sheet material is along horizontal basic whole moving; 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 material folding piece.The material folding piece is many to forming by two rows, in the stretch former left and right sides one row is set respectively; Leave the gap between the adjacent material folding piece, holding crest line and two bights in face of the material folding of material folding piece is big fillet, and the material folding face left and right sides two ends crest line place adjacent with other material folding piece also is provided with fillet.Gap between the material folding piece, bight and crest line place fillet, and because the difformity of the difference in height of material folding face or material folding piece, multi-form, different pressures etc. cause the less or hard-core panel surface of restriction place, can produce plate and flow and extension, make each material folding piece and feeding clip mechanism can produce rotation, swing or the stretching of non-equivalent passively with certain gradient; Thereby make feeding clip mechanism be arranged in camber line or waveform line, realize the Flexible Control of a plurality of clamps of stretch former along the shape of mould; Help pasting mould when workpiece is pull-shaped, significantly improve the workpiece material utilization rate, realize the stretch forming of complex part.
Above-mentioned purpose of the present utility model is achieved in that accompanying drawings is as follows:
The utility model is many clamp-types stretch former material folding piece.The material folding piece is many to forming by two rows, in the stretch former left and right sides one row is set respectively; Leave the gap between the adjacent material folding piece, holding crest line and two bights in face of the material folding of material folding piece is big fillet, and the material folding face left and right sides two ends crest line place adjacent with other material folding piece also is provided with fillet.
The material folding face of described material folding piece is a horizontal plane; Or the rear end is a little more than front end; Or there is one section horizontal plane the rear end, and a little more than front end; Height can be omited in the centre of material folding face, and two ends, the left and right sides are attenuate gradually.
Described material folding is block-shaped to be rectangle, trapezoidal or by rectangle and the trapezoidal hexagon that combines; Hold length to be equal to or less than the material folding surface rear end in face of the material folding; Two bights of end are provided with fillet in face of the material folding.
Described material folding piece comprises snap material folding piece 1 and flow-type material folding piece 2, have a plurality of projectioies on the material folding face of described snap material folding piece 1, have several beads on the material folding face of described flow-type material folding piece 2, snap material folding piece 1 and flow-type material folding piece 2 or with a kind of independent use wherein, or mix use for the unit alternating expression with a plurality of.
In order to solve problems such as sheet material transversely deforming that traditional stretching machine, stretching former exists is inhomogeneous, the utility model is achieved through the following technical solutions: the utility model is many clamp-types stretch former material folding piece.The material folding piece is many to forming by two rows, in the stretch former left and right sides one row is set respectively; Leave the gap between the adjacent material folding piece, holding crest line and two bights in face of the material folding of material folding piece is big fillet, and the material folding face left and right sides two ends crest line place adjacent with other material folding piece also is provided with fillet.Can have buy property flowing of living plate and extending of gap and fillet equipotential like this, thereby make feeding clip mechanism be arranged in camber line or waveform line, realize the Flexible Control of a plurality of clamps of stretch former along the shape of mould.The material folding face of material folding piece can be a horizontal plane, or the rear end is a little more than front end, or there is one section horizontal plane the rear end and a little more than front end; Height can be omited in the centre of material folding face, and two ends, the left and right sides are attenuate gradually.The existence of material folding face difference in height, can be in the less or hard-core panel surface of material folding region generating restriction, thereby further producing the plate with certain gradient flows and extension, the easier feeding clip mechanism that makes is arranged in camber line or waveform line along the shape of mould, realizes the Flexible Control of a plurality of clamps of stretch former better.Material folding is block-shaped to be rectangle, trapezoidal or by rectangle and the trapezoidal hexagon that combines; Hold length to be equal to or less than the material folding surface rear end in face of the material folding; Two bights of end are provided with fillet in face of the material folding, and the fillet in two bights can be greatly to being linked to be a circular arc.Hold length less than the material folding surface rear end in face of the material folding, help increasing the less or hard-core area of restriction in the sheet material material folding zone, amount of flow difference when making plate stretch-forming, thus realize the processing of horizontal deep camber and waveform workpiece, tackle the demand of many kinds work piece production better.Can also mix use material folding mask the snap material folding piece 1 of a lot of projectioies and the flow-type material folding piece 2 that the material folding mask has several beads are arranged.Control each clamping of different material folding pieces and pressure regulator valve can be installed respectively, different pressure is set respectively according to technological requirement with hydraulic cylinder.Each of the mixing use of variety classes material folding piece and material folding piece clamps installs pressure regulator valve respectively with hydraulic cylinder, also can make many rotation, swing or stretchings that material folding piece and feeding clip mechanism are produced non-equivalent passively; Help pasting mould when workpiece is pull-shaped, significantly improve the workpiece material utilization rate, realize the stretch forming of complex part.
Technique effect of the present utility model:
The utility model is many clamp-types stretch former material folding piece.Gap between the material folding piece, bight and crest line place fillet, and because the difformity of the difference in height of material folding face or material folding piece, multi-form, different pressures etc. cause the less or hard-core panel surface of restriction place, plate be can produce and the rotation, swing or the stretching that produce non-equivalent passively flowed or extension with certain gradient; Thereby make feeding clip mechanism be arranged in camber line or waveform line, realize the Flexible Control of a plurality of clamps of stretch former along the shape of mould; Help pasting mould when workpiece is pull-shaped, significantly improve the workpiece material utilization rate, realize the stretch forming of complex part.
Description of drawings
Fig. 1 is to use many schematic diagrames to snap material folding piece.
Fig. 2 is the schematic diagram that material folding face has the material folding piece of constant slope, wherein:
Fig. 2 (a) is that the rear end of material folding piece is to the front end schematic diagram of attenuate gradually;
Fig. 2 (b) is that rear end to the front end of material folding piece exists one section horizontal plane and the one section schematic diagram of weakened region gradually.
Fig. 3 is the schematic diagram of difformity material folding piece, wherein:
Fig. 3 (a) is the schematic diagram of rectangle material folding piece;
Fig. 3 (b) is the schematic diagram of trapezoidal material folding piece;
Fig. 3 (c) is the schematic diagram by rectangle and the trapezoidal hexagon material folding piece that combines.
Fig. 4 is that snap material folding piece mixes the schematic diagram when using with flow-type material folding piece.
Wherein: 1. snap material folding piece 2. has the flow-type material folding piece of drawbead.
The specific embodiment
Further specify the particular content of the present utility model and the course of work below in conjunction with embodiment shown in the drawings.
Fig. 1 is to use many schematic diagrames to snap material folding piece 1.Five pairs of snap material folding pieces 1 of one row are set respectively in the left and right sides of stretch former; Between the adjacent material folding piece certain interval is arranged, hold crest line and two bights that big fillet is arranged in face of the material folding of material folding piece, also there is certain fillet at the material folding face left and right sides two ends crest line place adjacent with other material folding piece.Like this, allow to have the mobile and extension that positions such as gap and fillet produce plate.Material folding face adopts the snap with a lot of projectioies, adopts this kind form can sting tight plate, and in sheet material stretch forming process, plate can not flow in the tight zone of stinging of material folding piece substantially.
Fig. 2 is the schematic diagram that material folding face has the material folding piece of constant slope, wherein Fig. 2 (a) be the rear end of material folding piece to the front end schematic diagram of attenuate gradually, Fig. 2 (b) is that rear end to the front end of material folding piece exists one section horizontal plane and the one section schematic diagram of weakened region gradually.Fig. 2 (a) is middle slightly high with the material folding face of the middle material folding piece of Fig. 2 (b), and two ends, the left and right sides are attenuate gradually.The rear end of material folding piece to the attenuate angle [alpha] of front end should be less than the middle attenuate angle beta to two ends, the left and right sides of material folding face.Clamped at the regional plate that the material folding piece is thicker, can not produce mobile; Along with the attenuate of material folding piece, sting tight power and reduce gradually, allow plate to produce certain flowing and extension.
Fig. 3 is the schematic diagram of difformity material folding piece, and wherein Fig. 3 (a) is the schematic diagram of rectangle material folding piece, and Fig. 3 (b) is the schematic diagram of trapezoidal material folding piece, and Fig. 3 (c) is the schematic diagram by rectangle and the trapezoidal hexagon material folding piece that combines.The use of trapezoidal or hexagon material folding piece, and at two bigger fillets of bights setting, cause holding length less than the material folding surface rear end in face of the material folding, to help plate and near material folding face, produce mobile and extension with big gradient, thereby realize the pull-shaped of horizontal deep camber and waveform workpiece, tackle the demand of many kinds work piece production better.
Fig. 4 is that snap material folding piece 1 mixes the schematic diagram when using with flow-type material folding piece 2.The snap material folding piece 1 that the material folding mask has a lot of projectioies and material folding mask have the flow-type material folding piece 2 of several beads can be single or multiple to mix use for the unit alternating expression, this will allow the plate generation to have flowing of bigger gradient and extend, thereby make feeding clip mechanism be arranged in camber line or waveform line, realize the Flexible Control of a plurality of clamps of stretch former along the shape of mould.
Stretch former of the present utility model material folding piece, adopt reasonable structural design, under the hydraulic cylinder effect in a row of identical hydraulic coupling, gap between the material folding piece, bight and crest line place fillet, and because the difference in height of material folding face or the difformity of material folding piece, multi-form, different pressures etc. cause the less or hard-core panel surface of restriction place, the plate that generation has certain gradient flows and extension, allow many rotations that material folding piece and feeding clip mechanism are produced non-equivalent passively, swing or stretching, thereby make feeding clip mechanism be arranged in camber line or waveform line, realize the Flexible Control of a plurality of clamps of stretch former along the shape of mould; The load path that assurance is applied on the workpiece is more reasonable, the tension of workpiece and the distribution of stretching strain are more even, realize the subsides mould of workpiece easily, reduce the process allowance of workpiece, significantly improve the workpiece material utilization rate, realize the stretch forming of complex-curved workpiece.
Claims (4)
1. the material folding piece of clamp-type stretch former more than a kind is characterized in that, described material folding piece is many to forming by two rows, in the stretch former left and right sides one row is set respectively; Leave the gap between the adjacent material folding piece, holding crest line and two bights in face of the material folding of material folding piece is big fillet, and the material folding face left and right sides two ends crest line place adjacent with other material folding piece also is provided with fillet.
2. a kind of many clamp-types stretch former material folding piece according to claim 1 is characterized in that the material folding face of described material folding piece is a horizontal plane; Or the rear end is a little more than front end; Or there is one section horizontal plane the rear end, and a little more than front end; Or the middle slightly height of material folding face, two ends, the left and right sides are attenuate gradually.
3. a kind of many clamp-types stretch former material folding piece according to claim 1 and 2 is characterized in that, described material folding is block-shaped to be rectangle, trapezoidal or by rectangle and the trapezoidal hexagon that combines; Segment length is equal to or less than the material folding surface rear end in face of the material folding.
4. a kind of many clamp-types stretch former material folding piece according to claim 1, it is characterized in that, described material folding piece comprises snap material folding piece (1) and flow-type material folding piece (2), have a plurality of projectioies on the material folding face of described snap material folding piece (1), have several beads on the material folding face of described flow-type material folding piece (2), snap material folding piece (1) and flow-type material folding piece (2) or with a kind of independent use wherein, or mix use for the unit alternating expression with a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205189271U CN201880780U (en) | 2010-09-07 | 2010-09-07 | Material clamping block used on multi-clamp type stretch forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205189271U CN201880780U (en) | 2010-09-07 | 2010-09-07 | Material clamping block used on multi-clamp type stretch forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201880780U true CN201880780U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205189271U Expired - Lifetime CN201880780U (en) | 2010-09-07 | 2010-09-07 | Material clamping block used on multi-clamp type stretch forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201880780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894467A (en) * | 2014-04-14 | 2014-07-02 | 吉林大学 | Servo stretch forming machine |
-
2010
- 2010-09-07 CN CN2010205189271U patent/CN201880780U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894467A (en) * | 2014-04-14 | 2014-07-02 | 吉林大学 | Servo stretch forming machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
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| CX01 | Expiry of patent term |