CN103009122A - Internal clamping fixture - Google Patents
Internal clamping fixture Download PDFInfo
- Publication number
- CN103009122A CN103009122A CN 201210519002 CN201210519002A CN103009122A CN 103009122 A CN103009122 A CN 103009122A CN 201210519002 CN201210519002 CN 201210519002 CN 201210519002 A CN201210519002 A CN 201210519002A CN 103009122 A CN103009122 A CN 103009122A
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- cam
- matrix
- hole
- slide bar
- rotating shaft
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Abstract
The invention relates to a clamping fixture, in particular to an internal clamping fixture which comprises a fixture body, clamping jaws, a handle, a rotating shaft, a cam with a C-shaped groove, a cylindrical pin, a reset spring and a slide rod, wherein the fixture body comprises a lower matrix, an upper matrix and a side matrix; the lower matrix is longitudinally provided with a rectangular groove and a limit groove; the rectangular groove is communicated with a longitudinal through hole on the upper matrix; the slide rod penetrates through the longitudinal through hole of the upper matrix, and the lower end of the slide rod is arranged in the rectangular groove of the lower matrix; the cylindrical pin penetrates through the lower end of the slide rod, and both ends of the cylindrical pin are respectively arranged in the C-shaped groove of the cam and the limit groove; the longitudinal cross section of the cam is in a wedge shape; a through hole is arranged in the horizontal direction of the lower matrix; the rotating shaft penetrates through the horizontal through hole, and both ends of the rotating shaft are respectively connected with the handle and the cam fixedly; the reset spring is arranged horizontally in the side matrix; driving ends at the lower parts of the clamping jaws are hinged with the side matrix; and according to the internal clamping fixture of the technical scheme of the invention, the clamping force adjustability is high, the positioning is precise, the structure is simple and the cost is low.
Description
Technical field
The present invention relates to a kind of clamping device, be specifically related to a kind of inner clamps clamper.
Background technology
In the machining manufacturing industry, the locating clip clamper plays very important effect, and it guarantees that the relative lathe of workpiece, cutter etc. are in correct position all the time, guarantees uniformity and the crudy of workpiece processing.
The location of workpiece and fastening, the selection of its stress point and stress surface has determined to locate and fastening effect, the outer wall of the selection workpiece that traditional clamping device is more is force surface, and for the clamping of spill workpiece, concave surface is decided to be stress surface can better realizes locating and fastening effect.Although existing clamping device can satisfy the clamping demand of workpiece to a certain extent, but in the actual use procedure, still exist following some shortcomings: 1, for the spill workpiece of being made by the relatively poor material of toughness, if thereby clamping device adopts mode that outer wall clamps or its then easily not cause by force the distortion of workpiece or damage impact to the accuracy of workpiece location on the exert pressure modulability of dynamics of workpiece; Although 2 have some to adopt other power band moving slide-bar motions to realize the device that clamps, its complex structure, cost is higher.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly clamps that the dynamics modulability is strong, registration, the inner clamps clamper that simple in structure, cost is low.
In order to solve the problems of the technologies described above, the invention provides a kind of inner clamps clamper, include chuck body, jaw, handle, rotating shaft, be provided with the cam of C type groove, straight pin, back-moving spring, slide bar, wherein, described chuck body is by lower substrate, upper matrix and side group body form, lower substrate vertically is provided with rectangular channel and stopper slot, the set longitudinal hole of rectangular channel and upper matrix connects, described slide bar passes the longitudinal hole of matrix, its lower end places in the rectangular channel of lower substrate, described straight pin passes the lower end of slide bar, one end of straight pin places in the C type groove of described cam, and the other end is positioned at stopper slot, and the longitudinal section of described cam is wedge shape, the horizontal direction of lower substrate is provided with through hole, horizontal through hole is passed in described rotating shaft and its two ends are fixedly connected with described cam with described handle respectively, and level is provided with back-moving spring in the side group body, and the two ends of back-moving spring are connected with jaw with the side group body respectively, jaw bottom drive end and side group body are hinged, and its top driven end is used for clamping work pieces.
Turning handle drives rotating shaft and cam rotates, simultaneously, straight pin one end is along with C shape groove rotates, and the other end slides in stopper slot, realizes the lifting of cam driven slide bar and has stoped the rotation of slide bar in lifting process, when the distance of straight pin and cam center of rotation farthest the time, slide bar is in the extreme higher position, applies one for this moment the concave surface of workpiece and upwards pressure, simultaneously, the convex surface of cam promotes the another side that jaw forces in workpiece, realizes the inside of workpiece is clamped; When straight pin and cam center of rotation nearest, slide bar is in extreme lower position, and this moment, slide bar withdrawed from the concave surface of workpiece, upwards pressure and eliminates thereupon, and cam is also eliminated to the thrust of jaw thereupon simultaneously, thereby unclamps workpiece.
Adopt the inner clamps clamper of technique scheme to have following advantage: 1, because the mode that adopts chuck body convex part to match with the workpiece concave surface, the stress surface of caught workpiece increases, and therefore can not cause distortion and damage and its location accuracy to workpiece high to workpiece; 2, the manual operation clamping device saves power source mechanism, and apparatus structure is simple, and just can realize in the situation that does not have complicated auxiliary manufacturing step, so the processing and manufacturing cost is low.
As preferred version, consider that slide bar top and workpiece Long Term Contact easily cause wearing and tearing, the top of described slide bar is provided with nut, and nut is connected with slide bar by screw thread, so that change nut, adaptive dissimilar workpiece.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of embodiment of the invention inner clamps clamper;
Fig. 2 is the structural representation of the cam of embodiment of the invention inner clamps clamper.
The specific embodiment
Below in conjunction with drawings and Examples technical solution of the present invention is further specified:
As depicted in figs. 1 and 2, the invention provides a kind of inner clamps clamper, include chuck body 4, handle 1, rotating shaft 2, be provided with the cam 7 of C type groove 12, straight pin 6, back-moving spring 8, jaw 3, slide bar 5, wherein, chuck body 4 is by lower body, upper body and side body form, lower body vertically is provided with rectangular channel 10 and stopper slot 9, the set longitudinal hole of rectangular channel 10 and upper body connects, slide bar 5 passes the longitudinal hole of upper body, its lower end places in the rectangular channel 10 of lower body, straight pin 6 passes the lower end of slide bar 5, one end of straight pin 6 places in the C type groove 12 of cam 7, and the other end is positioned at stopper slot 9, and the longitudinal section of cam 7 is wedge shape, the horizontal direction of lower body is provided with through hole, horizontal through hole is passed in rotating shaft 2 and its two ends are fixedly connected with cam 7 with handle 1 respectively, and level is provided with back-moving spring 8 in the side body, is connected with jaw with the side body respectively and is connected in the two ends of back-moving spring 8, jaw 3 bottom drive ends and side body are hinged, and its top driven end is used for clamping work pieces.In addition, slide bar 5 tops are provided with nut 11, and nut 11 is connected with slide bar 5 by screw thread.
Specifically using method is: turning handle 1 drives rotating shaft 2 and cam 7 rotates, simultaneously, straight pin 6 one ends are along with C shape groove 12 rotates, the other end is in stopper slot 9 interior slips, realize cam 7 with the lifting of moving slide-bar 5 and stoped the rotation of slide bar 5 in lifting process, when the distance of straight pin 6 and cam 7 center of rotation farthest the time, slide bar bar 5 is in the extreme higher position, applying one for this moment the concave surface of workpiece upwards pressure, simultaneously, the convex surface of cam 7 promotes the another side that jaw 3 forces in workpiece, realizes the inside of workpiece is clamped; When straight pin 6 and cam 7 center of rotation nearest, slide bar bar 5 is in extreme lower position, and this moment, slide bar 5 withdrawed from the concave surface of workpiece, upwarded pressure and eliminated thereupon, and cam 7 also eliminates for the thrust of jaw 3 thereupon simultaneously, thereby unclamps workpiece.
Above-described only is preferred embodiment of the present invention; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not affect effect of the invention process and practical applicability.
Claims (2)
1. inner clamps clamper, it is characterized in that: include chuck body, jaw, handle, rotating shaft, be provided with the cam of C type groove, straight pin, back-moving spring, slide bar, wherein, described chuck body is by lower substrate, upper matrix and side group body form, lower substrate vertically is provided with rectangular channel and stopper slot, the set longitudinal hole of rectangular channel and upper matrix connects, described slide bar passes the longitudinal hole of matrix, its lower end places in the rectangular channel of lower substrate, described straight pin passes the lower end of slide bar, one end of straight pin places in the C type groove of described cam, the other end is positioned at stopper slot, the longitudinal section of described cam is wedge shape, and the horizontal direction of lower substrate is provided with through hole, and horizontal through hole is passed in described rotating shaft and its two ends are fixedly connected with described cam with described handle respectively, level is provided with back-moving spring in the side group body, the two ends of back-moving spring are connected with jaw with the side group body respectively, and jaw bottom drive end and side group body are hinged, and its top driven end is used for clamping work pieces.
2. inner clamps clamper according to claim 1, it is characterized in that: described top end of sliding rod is provided with nut, and nut is connected with slide bar by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210519002 CN103009122A (en) | 2012-12-06 | 2012-12-06 | Internal clamping fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210519002 CN103009122A (en) | 2012-12-06 | 2012-12-06 | Internal clamping fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103009122A true CN103009122A (en) | 2013-04-03 |
Family
ID=47958523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210519002 Pending CN103009122A (en) | 2012-12-06 | 2012-12-06 | Internal clamping fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103009122A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349742A (en) * | 2015-12-18 | 2016-02-24 | 中冶陕压重工设备有限公司 | Optical lever locking device |
| CN113879540A (en) * | 2021-10-08 | 2022-01-04 | 滨州学院 | Article fastening system for transportation vehicle |
-
2012
- 2012-12-06 CN CN 201210519002 patent/CN103009122A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349742A (en) * | 2015-12-18 | 2016-02-24 | 中冶陕压重工设备有限公司 | Optical lever locking device |
| CN113879540A (en) * | 2021-10-08 | 2022-01-04 | 滨州学院 | Article fastening system for transportation vehicle |
| CN113879540B (en) * | 2021-10-08 | 2023-11-03 | 滨州学院 | Article fastening system for transportation means |
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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 |