CN103009117A - Internal clamping fixture - Google Patents
Internal clamping fixture Download PDFInfo
- Publication number
- CN103009117A CN103009117A CN 201210518980 CN201210518980A CN103009117A CN 103009117 A CN103009117 A CN 103009117A CN 201210518980 CN201210518980 CN 201210518980 CN 201210518980 A CN201210518980 A CN 201210518980A CN 103009117 A CN103009117 A CN 103009117A
- Authority
- CN
- China
- Prior art keywords
- nut
- hole
- pedestal
- adjusting rod
- screw rod
- 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.)
- Pending
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- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a clamping fixture for clamping the inside of a work piece; the internal clamping fixture comprises a base; a through hole is arranged in the middle of the base; a nut penetrates through the lower part of the through hole; a screw cap is sleeved outside a screw rod; an adjusting rod penetrates through the upper part of the through hole; the adjusting rod and the screw rod are fixed through a set screw; the top end of the adjusting rod is provided with an adjusting plate; two clamping jaws are arranged on the adjusting plate; the upper parts of the two clamping jaws are connected through a pressure spring; and the middle parts of the two clamping jaws are hinged on the adjusting plate. According to the internal clamping fixture, the structure is simple, the operation is convenient and the work piece is clamped stably.
Description
Technical field
The present invention relates to machine tools, be specifically related to the clamping device of a kind of holding workpiece inside.
Background technology
Fix workpiece by the holding workpiece outside; make it to occupy the anchor clamps of correct position, tend to cause cut to surface of the work, affect the crudy of workpiece; therefore for the workpiece of some exterior light slipperies that need protection, come workpiece is fixed by holding workpiece inside.And at present, the anchor clamps of holding workpiece inside often exist complex structure, operation inconvenience, and the unsettled defective of clamping, affect the crudy of workpiece.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of simple in structure, inside clamping device that holding workpiece is stable.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of inner clamping device, comprise pedestal, be provided with through hole in the middle of the pedestal, the through hole bottom is equipped with screw rod, and screw jacket is provided with nut, through hole top is equipped with adjusting rod, adjusting rod and screw rod are fixed by holding screw, and the adjusting rod top is provided with adjustable plate, and adjustable plate is provided with two claws, two claw tops connect by stage clip, and the middle part of two claws all is hinged on the adjustable plate.
Based on structure of the present invention, its clamping principle is as follows: with the clockwise precession of the relative screw rod of nut, screwing out counterclockwise is example, the dextrorotation turn nut, the relative screw rod of nut rises gradually, rises when nut until after propping up pedestal, continue rotating nut, nut can't upwards continue precession this moment, therefore screw rod will screw out downwards gradually, and screw rod drives adjusting rod and moves downward, and the claw on adjustable plate and the adjustable plate also moves downward, until claw blocks workpiece, nut stops the rotation; In the time of need to unclamping workpiece, be rotated counterclockwise nut, screw rod upwards withdraws from, until discharge workpiece.
Two claw tops connect by stage clip, because stage clip is in compressive state all the time, therefore outside thrust is arranged all the time at two claw tops, take claw middle part and adjustable plate junction as axle, there is outside thrust in claw top, and the claw bottom will produce the effect of oblique below power, under this active force, the claw bottom will inwardly be shunk, and compresses downwards, makes clamping more firm.
Adjusting rod and screw rod are fixed by holding screw, when the screw rod spinning in and out, can prevent effectively that adjusting rod from rotating thereupon.
Further, the bottom of described claw has the inner convex platform that contacts with base-plates surface shape.Jaw of the present invention is under the clamp position, and the bottom of jaw will contact with pedestal, and behind the section of the setting of jaw bottom and base-plates surface form fit, when the jaw bottom contacted with pedestal, impact forces was little, and it is tightr to fit, and can not affect the clamping effect.
Further, between described pedestal and nut, be provided with pad.Pad plays cushioning effect, the effect of the frictional force that when reducing the nut rotation pedestal is produced.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
The specific embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Inside clamping device as shown in Figure 1, comprise pedestal 1, pedestal 1 is provided with fairlead 2, be equipped with through hole in the middle of pedestal 1 and the fairlead 2, the through hole of pedestal 1 is coaxial with the through hole of fairlead 2, the through hole bottom of pedestal 1 is equipped with screw rod 3, the screw rod 3 outer nuts 5 that are arranged with, be provided with pad 7 between pedestal 1 and the nut 5, the through hole top of pedestal 1 is equipped with adjusting rod 4, and this adjusting rod 4 also passes the through hole of fairlead 2, and adjusting rod 4 is fixing by holding screw 6 with screw rod 3, adjusting rod 4 tops are provided with adjustable plate 8, adjustable plate 8 is provided with 9, two claw tops of two claws and connects by stage clip 10, and the middle part of two claws all is hinged on the adjustable plate 8, the bottom of claw 9 has the inner convex platform that contacts with the fairlead 2 surperficial shapes that arrange on the pedestal 1, the bottom holding workpiece 11 of claw 9.
Its clamping principle of this clamping device is as follows: with the clockwise precession of the relative screw rod of nut, screwing out counterclockwise is example, the dextrorotation turn nut, and the relative screw rod of nut rises gradually, when nut rises until after propping up pedestal, continue rotating nut, nut can't upwards continue precession this moment, so screw rod will screw out downwards gradually, screw rod drives adjusting rod and moves downward, claw on adjustable plate and the adjustable plate also moves downward, until claw blocks workpiece, nut stops the rotation; In the time of need to unclamping workpiece, be rotated counterclockwise nut, screw rod upwards withdraws from, until discharge workpiece.
Claims (3)
1. inner clamping device, it is characterized in that, comprise pedestal, be provided with through hole in the middle of the pedestal, the through hole bottom is equipped with screw rod, screw jacket is provided with nut, and through hole top is equipped with adjusting rod, and adjusting rod and screw rod are fixed by holding screw, the adjusting rod top is provided with adjustable plate, adjustable plate is provided with two claws, and two claw tops connect by stage clip, and the middle part of two claws all is hinged on the adjustable plate.
2. inner clamping device according to claim 1 is characterized in that, the bottom of described claw has the inner convex platform that contacts with base-plates surface shape.
3. inner clamping device according to claim 1 is characterized in that, is provided with pad between described pedestal and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210518980 CN103009117A (en) | 2012-12-06 | 2012-12-06 | Internal clamping fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210518980 CN103009117A (en) | 2012-12-06 | 2012-12-06 | Internal clamping fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103009117A true CN103009117A (en) | 2013-04-03 |
Family
ID=47958518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210518980 Pending CN103009117A (en) | 2012-12-06 | 2012-12-06 | Internal clamping fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103009117A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308581A (en) * | 2014-10-17 | 2015-01-28 | 金牌模具（常熟）有限公司 | Novel punch processing fixture and novel punch manufactured by same |
| CN105081755A (en) * | 2015-08-11 | 2015-11-25 | 温州职业技术学院 | Automatic disengaging type fastening piece locking mechanism |
| CN111283581A (en) * | 2020-03-30 | 2020-06-16 | 江丽平 | Quick fixture that machining used |
-
2012
- 2012-12-06 CN CN 201210518980 patent/CN103009117A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308581A (en) * | 2014-10-17 | 2015-01-28 | 金牌模具（常熟）有限公司 | Novel punch processing fixture and novel punch manufactured by same |
| CN105081755A (en) * | 2015-08-11 | 2015-11-25 | 温州职业技术学院 | Automatic disengaging type fastening piece locking mechanism |
| CN111283581A (en) * | 2020-03-30 | 2020-06-16 | 江丽平 | Quick fixture that machining used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |