CN203062322U - Internal clamping device - Google Patents
Internal clamping device Download PDFInfo
- Publication number
- CN203062322U CN203062322U CN 201220691783 CN201220691783U CN203062322U CN 203062322 U CN203062322 U CN 203062322U CN 201220691783 CN201220691783 CN 201220691783 CN 201220691783 U CN201220691783 U CN 201220691783U CN 203062322 U CN203062322 U CN 203062322U
- Authority
- CN
- China
- Prior art keywords
- clamping
- clamping device
- boss
- hole
- plane
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a fixture device and particularly relates to an internal clamping device. The internal clamping device comprises a hollow boss used for clamping a workpiece. A clamping device body is arranged in the cavity of the boss. The clamping device body comprises a guiding rod capable of vertically moving and a nut expanding block with an outer slope. An expanding block with an outer slope is fixedly arranged at the bottom end of the guiding rod. The top end of the guiding rod is connected with the nut expanding block in a threaded mode. A through hole is transversally formed in a hole wall of the boss corresponding to the outer slope. Clamping jaws capable of horizontally sliding are arranged in the through hole. The tail portion of each clamping jaw is provided with a slope corresponding to the outer slope. The number of the clamping jaws is three and the clamping jaws are arranged along the circumferential direction. A strip-shaped through groove is vertically formed in the middle of the guiding rod. A locating pin is arranged in the through groove and fixed on a cavity wall of the boss. Compared with an existing clamping device, the internal clamping device is good in clamping effect, convenient to operate and suitable for clamping a component with a deep through hole.
Description
Technical field
The utility model relates to a kind of grip device, is specifically related to a kind of inner clamping device.
Background technology
In the process of parts; In order to guarantee machining accuracy and effect, it need be fixed in first being processed, anchor clamps arise at the historic moment.The parts of band deep via are owing to the particularity of its structure, and existing anchor clamps are unsatisfactory to the effect of its clamping; Be difficult to its clamping, and complex structure, cause inconvenient operation, thereby influence working (machining) efficiency.
The utility model content
The purpose of this utility model is to provide a kind of inner clamping device, good clamping effect, simple in structure, easy to operate.
The utility model is achieved through the following technical solutions:
A kind of inner clamping device, comprise the cannular boss for clamping work pieces, be provided with clamping device in the cavity of boss, described clamping device comprises the guide rod of a upper and lower movement and the bloated piece of nut on the outer inclined-plane of band, the bottom of described guide rod is installed with the bloated piece on the outer inclined-plane of band, and its top is threaded with the bloated piece of nut; Laterally be provided with through hole on the boss hole wall of described outer inclined-plane correspondence, be provided with the jaw of horizontal slip in the through hole, described jaw afterbody is provided with and corresponding inclined-plane, described outer inclined-plane, and described jaw circumferentially distributes three; Described guide rod middle part vertically has the bar shaped groove, is provided with alignment pin in the groove, and described alignment pin is fixed on the boss cavity wall.
The beneficial effects of the utility model are:
The utility model structural design is ingenious, clockwise rotate nut when expanding piece, the drive guide rod moves up, the bloated piece in lower end this moment forms the inclined-plane with jaw and cooperates, and the outside mobile clamping work pieces downside of jaw is when downside is clamped, guide rod stops to move up, the bloated piece of nut this moment is downward, drives the outside mobile clamping work pieces upside of jaw, can realize clamping and location to workpiece.Compare with existing clamping device, the utility model good clamping effect, easy to operate is applicable to the clamping of the parts of band deep via.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
By reference to the accompanying drawings shown in 1, a kind of inner clamping device, comprise the cannular boss 2 for clamping work pieces 1, be provided with clamping device in the cavity of boss 2, described clamping device comprises the guide rod 3 of a upper and lower movement and the bloated piece 5 of nut on the outer inclined-plane 4 of band, the bottom of described guide rod 3 is installed with the bloated piece 6 on the outer inclined-plane 4 of band, and its top is threaded with the bloated piece 5 of nut; Laterally be provided with through hole 7 on boss 2 hole walls of described outer inclined-plane 4 correspondences, be provided with the jaw 8 of horizontal slip in the through hole 7, described jaw 8 afterbodys are provided with and 4 corresponding inclined-planes, described outer inclined-plane, and described jaw 8 circumferentially distributes three; Described guide rod 3 middle parts vertically have bar shaped groove 9, are provided with alignment pin 10 in the groove 9, and described alignment pin 10 is fixed on boss 2 cavity walls.
Clockwise rotate nut when expanding piece 5, driving guide rod 3 moves up, the bloated piece 6 in lower end this moment forms inclined-planes with jaw 8 and cooperates, jaw 8 outside mobile clamping work pieces 1 downsides, when workpiece 1 downside was clamped, guide rod 3 stopped to move up, and the bloated piece 5 of nut this moment is downward, drive jaw 8 outside mobile clamping work pieces 1 upsides, can realize clamping and location to workpiece 1.
Above-described only is preferred embodiment of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (1)
1. inner clamping device, comprise the cannular boss for clamping work pieces, be provided with clamping device in the cavity of boss, it is characterized in that: described clamping device comprises the guide rod of a upper and lower movement and the bloated piece of nut on the outer inclined-plane of band, the bottom of described guide rod is installed with the bloated piece on the outer inclined-plane of band, and its top is threaded with the bloated piece of nut; Laterally be provided with through hole on the boss hole wall of described outer inclined-plane correspondence, be provided with the jaw of horizontal slip in the through hole, described jaw afterbody is provided with and corresponding inclined-plane, described outer inclined-plane, and described jaw circumferentially distributes three; Described guide rod middle part vertically has the bar shaped groove, is provided with alignment pin in the groove, and described alignment pin is fixed on the boss cavity wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691783 CN203062322U (en) | 2012-12-14 | 2012-12-14 | Internal clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691783 CN203062322U (en) | 2012-12-14 | 2012-12-14 | Internal clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203062322U true CN203062322U (en) | 2013-07-17 |
Family
ID=48761148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220691783 Expired - Fee Related CN203062322U (en) | 2012-12-14 | 2012-12-14 | Internal clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203062322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589087A (en) * | 2014-12-11 | 2015-05-06 | 重庆环际低碳节能技术开发有限公司 | Large-size workpiece interior centering clamping mechanism |
| CN108311909A (en) * | 2018-01-16 | 2018-07-24 | 先导薄膜材料（广东）有限公司 | The machining tool of ITO target and related fragile material |
-
2012
- 2012-12-14 CN CN 201220691783 patent/CN203062322U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589087A (en) * | 2014-12-11 | 2015-05-06 | 重庆环际低碳节能技术开发有限公司 | Large-size workpiece interior centering clamping mechanism |
| CN108311909A (en) * | 2018-01-16 | 2018-07-24 | 先导薄膜材料（广东）有限公司 | The machining tool of ITO target and related fragile material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20131214 |