CN105057483A - C-shaped thin-wall work piece clamping device - Google Patents
C-shaped thin-wall work piece clamping device Download PDFInfo
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- CN105057483A CN105057483A CN201510495484.6A CN201510495484A CN105057483A CN 105057483 A CN105057483 A CN 105057483A CN 201510495484 A CN201510495484 A CN 201510495484A CN 105057483 A CN105057483 A CN 105057483A
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- base
- pressing plate
- work piece
- block
- clamping device
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Abstract
The invention discloses a C-shaped thin-wall work piece clamping device. An arc-shaped groove is formed in a base; a supporting rod is also vertically arranged on the base; two supporting blocks capable of sliding up and down are arranged on the supporting rod and are positioned between the base and a pressing plate; the outer surface of each supporting block is an arc surface; the pressing plate is positioned above the base; the lower end face of the pressing plate is provided with an arc-shaped clamping groove. The groove in the base can be used for arranging and supporting a to-be-clamped C-shaped thin-wall work piece. The supporting blocks can slide up and down on the supporting rod, so the supporting blocks can cooperate with the base and the pressing plate to support and clamp the C-shaped thin-wall work piece when moving to a clamping position. By the effects of the groove and the clamping groove, the contact area between the C-shaped thin-wall work piece clamping device and the surface of the C-shaped thin-wall work piece can be increased, and the acting force of the base and the pressing plate to the C-shaped thin-wall work piece can be dispersed, so extrusion deformation can be prevented. The inner surface of the C-shaped thin-wall work piece is supported by the arc-shaped outer surfaces of the supporting blocks, so the C-shaped thin-wall work piece is prevented from damages caused by pressing when being clamped.
Description
Technical field
The present invention relates to the positioning clamping device in a kind of machining, be specifically related to a kind of C shape thin-wall workpiece clamping device.
Background technology
Thin-wall workpiece is the abbreviation of a class thin-wall part, is processed with stretch bending and mould punching two kinds of modes usually for thin-wall part.For the thin-wall part of some abnormity, usually need to consider the geometry of workpiece and the stressing conditions processing mode reasonable in design to it when processing.For C shape thin-wall workpiece, its shape is similar to a cylinder not having to seal, or the cylinder that a Partial Shear falls.Clearly, directly can not carry out shearing by cylinder, the waste of material can be caused on the one hand, processing cost is significantly increased, causes product to lose market competition advantage; On the other hand, carry out shearing by cylinder, larger impact can be caused to cylinder itself, very easily cause cylinder to deform in shearing.According to the size of deflection, if do not cause structural destruction, can be corrected by the later stage and carry out shaping, but the surface accuracy of the C shape thin-wall workpiece after shaping is poor, often can not reach the accurate requirement used.So practical processing mode selects stretch bending.By special squeezer, bending operation is carried out to thin plate, make it form the C shape thin-wall workpiece of preliminary working.Due in bending processing mode, the distortion that C shape thin-wall workpiece can be caused certain and curling, needs to process it in follow-up processing.But the shape special for it and the feature of thin-walled, there is great problem in clamping and location, therefore, needs to provide special clamping device to complete the operation of its location and clamping.
Summary of the invention
The object of the present invention is to provide a kind of C shape thin-wall workpiece clamping device, can position and clamp operation C shape thin-wall workpiece, and effective support can be provided, prevent from occurring distortion in the process of clamping.
For achieving the above object, technical scheme of the present invention is: C shape thin-wall workpiece clamping device, comprise base and pressing plate moving up and down, described base is provided with the groove of circular arc, described base is also vertically provided with pole, described pole is provided with two back-up blocks that can slide up and down, and described back-up block is between base and pressing plate, and the outer surface of described back-up block is arc surface; Described pressing plate is positioned at the top of base, and the lower surface of described pressing plate is provided with the clamping slot of circular arc.
When adopting technique scheme, by the groove on base, C shape thin-wall workpiece to be clamped can be placed and supported.Because back-up block can slide up and down on pole, when back-up block is moved to clamped position, can coordinate together with base and pressing plate and C shape thin-wall workpiece is supported and clamped.By the effect of groove and clamping slot, can increase the contact area with C shape thin-wall workpiece surface, dispersion base and pressing plate, to the active force of C shape thin-wall workpiece, prevent crimp.Moreover; be provided with back-up block; can be supported by the inner surface of the outer surface of the circular arc on back-up block to C shape thin-wall workpiece, and can balance by the pressure of pressing plate function on C shape thin-wall workpiece, protection C shape thin-wall workpiece is unlikely to be damaged by pressure when clamping.
Further improvement project, the arc of described groove is quarter circular arc.
Further improvement project, the arc of described clamping slot is quarter circular arc.The arc of groove and clamping slot is unsuitable excessive or too small, and through repeatedly testing, quarter circular arc is by providing best clamping effect.
Further improvement project, described pole is provided with two movable blocks that can vertically slide, and described movable block is fixed with the connecting rod of level, and described back-up block is fixed on the end of connecting rod.This setting, can stretch between base and pressing plate by back-up block by the effect of connecting rod, to avoid in clamping process connecting rod or back-up block and C shape thin-wall workpiece to interfere.
Further improvement project, the inner surface of described back-up block is plane, and the end face of the inner surface of described back-up block, the end face of connecting rod and movable block is positioned at same plane.During this is arranged, because three faces are positioned at same plane, when the minimum spacing position of back-up block, back-up block, connecting rod and movable block can be close together, and make overall structure more compact.
Further improvement project, the upper surface of described pressing plate is provided with the pressure handle be connected with power set.Pressure handle is set, by pressure handle, pressing plate can be fixed on corresponding hydraulic cylinder equal power device, play and connect and fixing effect.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of C shape thin-wall workpiece clamping device embodiment of the present invention.
Reference numeral: base 1, groove 11, pole 2, movable block 3, connecting rod 4, back-up block 5, workpiece 6, top board 7, clamping slot 71.
Detailed description of the invention
As shown in Figure 1, C shape thin-wall workpiece clamping device of the present invention, comprises base 1, base 1 has the groove 11 of a circular arc, and this groove 11 is 1/4th of a complete circle.Base 1 is fixed with a vertical pole 2, pole 2 is connected with upper and lower two hydraulic cylinders, the piston rod of hydraulic cylinder is fixedly connected with movable block 3, by the effect of upper and lower two hydraulic cylinders, upper and lower two movable blocks 3 can be driven respectively to move up and down along pole 2.Movable block 3 has welded the connecting rod 4 of level, and horizontal brace rod 4 can move up and down along with moving up and down of movable block 3.Have the back-up block 5 of an arc at the end winding support of horizontal brace rod 4, back-up block 5 is divided into upper and lower two pieces, can move along with moving up and down of horizontal brace rod 4.And back-up block 5 there is an arc surface, can contact with the inner surface of workpiece 6 when locating, and workpiece 6 can be given from inside and support, prevent the workpiece 6 when clamping to curve inwardly distortion.In order to coordinate clamping work pieces 6 with base 1, being also provided with a top board 7, the pressure handle that the top shape one of top board 7 is fixing, by pressure handle, top board 7 being fixed on above forcing press, top board 7 under the effect of forcing press can be moved up and down.The lower surface of top board 7 offers a clamping slot 71, and in order to obtain best clamping effect, clamping slot 71 is positioned at directly over groove 11, and the size and shape of clamping slot 71 is all identical with groove 11.The inner surface that upper and lower two back-up blocks 5 are relative is plane, and the end face that the end face that the inner surface of back-up block, connecting rod are relative is relative with movable block is positioned at same plane.Because three faces are positioned at same plane, when the minimum spacing position of back-up block, back-up block, connecting rod and movable block can be close together, and make overall structure more compact.
During use, two movable blocks 3 are moved to centre by two hydraulic cylinders up and down on operation pole 2, until two movable blocks 3 are drawn close together, at this moment, two horizontal brace rods 4 being fixed on movable block 3 also lean against together, thus make the spacing of two back-up blocks 5 minimum.At this moment, by workpiece 6 pedestal for placed 1 to be held, make workpiece 6 be arranged in groove 11 on base 1.After placing workpiece 6, again operate two hydraulic cylinders up and down on pole 2, two movable blocks 3 are moved at two ends up and down, until stop when moving to operating position.When being positioned at operating position, two back-up blocks 5 are fitted on the inner surface of workpiece 6, and this position is the normal place that workpiece 6 clamps, and can not cause extruding to workpiece 6 or stretch.Finally, operating pressure machine, makes top board 7 move down, until top board 7 stops after moving to operating position.Now, the clamping slot 71 on top board 7 is conflicted and is arrived the surface of workpiece 6, clamps workpiece 6.Finally, in working order, complete the positioning clamping effect to workpiece 6 by the acting in conjunction of base 1, back-up block 5 and top board 7.
In the present invention, by the groove 11 on base 1, workpiece 6 to be clamped can be placed and supported.Because back-up block 5 can slide up and down on pole 2, when back-up block 5 is moved to clamped position, can coordinate together with base 1 and pressing plate 7 and workpiece 6 is supported and clamped.By the effect of groove 11 and clamping slot 71, can increase the contact area with workpiece 6 surface, the active force of dispersion base 1 and pressing plate 7 pairs of workpiece 6, prevents crimp.Moreover be provided with back-up block 5, can be supported by the inner surface of the outer surface of the circular arc on back-up block 5 to C shape thin-wall workpiece, and can balance the pressure acted on by pressing plate 7 on workpiece 6, protection workpiece 6 is unlikely to be damaged by pressure when clamping.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; without departing from the inventive concept of the premise; some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (6)
1.C shape thin-wall workpiece clamping device, comprise base and pressing plate moving up and down, it is characterized in that, described base is provided with the groove of circular arc, described base is also vertically provided with pole, described pole is provided with two back-up blocks that can slide up and down, and described back-up block is between base and pressing plate, and the outer surface of described back-up block is arc surface; Described pressing plate is positioned at the top of base, and the lower surface of described pressing plate is provided with the clamping slot of circular arc.
2. C shape thin-wall workpiece clamping device according to claim 1, is characterized in that, the arc of described groove is quarter circular arc.
3. C shape thin-wall workpiece clamping device according to claim 1, is characterized in that, the arc of described clamping slot is quarter circular arc.
4. C shape thin-wall workpiece clamping device according to claim 1, it is characterized in that, described pole is provided with two movable blocks that can vertically slide, and described movable block is fixed with the connecting rod of level, and described back-up block is fixed on the end of connecting rod.
5. C shape thin-wall workpiece clamping device according to claim 1, is characterized in that, the inner surface of described back-up block is plane, and the end face of the inner surface of described back-up block, the end face of connecting rod and movable block is positioned at same plane.
6. C shape thin-wall workpiece clamping device according to claim 1, it is characterized in that, the upper surface of described pressing plate is provided with the pressure handle be connected with power set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495484.6A CN105057483A (en) | 2015-08-13 | 2015-08-13 | C-shaped thin-wall work piece clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495484.6A CN105057483A (en) | 2015-08-13 | 2015-08-13 | C-shaped thin-wall work piece clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105057483A true CN105057483A (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495484.6A Pending CN105057483A (en) | 2015-08-13 | 2015-08-13 | C-shaped thin-wall work piece clamping device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453764A (en) * | 2018-02-08 | 2018-08-28 | 江西新能源科技职业学院 | The crawl mechanical arm of sensitive part |
| CN109277965A (en) * | 2018-11-09 | 2019-01-29 | 中国科学院上海光学精密机械研究所 | The frock clamp of ultra thin optical element |
| CN109277965B (en) * | 2018-11-09 | 2024-04-12 | 中国科学院上海光学精密机械研究所 | Tool clamp for ultrathin optical element |
-
2015
- 2015-08-13 CN CN201510495484.6A patent/CN105057483A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453764A (en) * | 2018-02-08 | 2018-08-28 | 江西新能源科技职业学院 | The crawl mechanical arm of sensitive part |
| CN109277965A (en) * | 2018-11-09 | 2019-01-29 | 中国科学院上海光学精密机械研究所 | The frock clamp of ultra thin optical element |
| CN109277965B (en) * | 2018-11-09 | 2024-04-12 | 中国科学院上海光学精密机械研究所 | Tool clamp for ultrathin optical element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |
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| WD01 | Invention patent application deemed withdrawn after publication |