CN203031316U - Internal clamping device - Google Patents
Internal clamping device Download PDFInfo
- Publication number
- CN203031316U CN203031316U CN 201220666463 CN201220666463U CN203031316U CN 203031316 U CN203031316 U CN 203031316U CN 201220666463 CN201220666463 CN 201220666463 CN 201220666463 U CN201220666463 U CN 201220666463U CN 203031316 U CN203031316 U CN 203031316U
- Authority
- CN
- China
- Prior art keywords
- handle
- thimble
- clamping device
- pedestal
- ejector pins
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 5
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model discloses an internal clamping device comprising a pedestal, ejector pins in horizontal sliding connection with the pedestal and a handle contacted with the ejector pins; steel balls are disposed among the ejector pins and the handle; a big steel ball contacted with the handle is tangent to small steel balls contacted with the ejector pins on the same horizontal plane; the diameter of the big steel ball is greater than the diameter of the small big balls; the handle is in vertical sliding connection with the pedestal; the internal clamping device is provided with at least two ejector pins; springs are sleeved on the ejector pins; and two sections of each spring are connected with the pedestal and the end of the matched ejector pin respectively. The internal clamping device is simple in structure and easy to operate and can clamp a workpiece as long as force along the axial direction of the pedestal is applied to the handle.
Description
Technical field
The utility model belongs to mechanical field, is specifically related to a kind of inner clamping device.
Background technology
Clamping device is that the workpiece of having good positioning is fixed on the setting element in whole process reliably, and the mechanism that changes of occurrence positions not.When clamping work pieces, do not allow to destroy the location of workpiece, and enough rigidity should be arranged, guarantee necessary clamping force, but should not damage the workpiece machined surface or make workpiece produce distortion, thereby guarantee machining accuracy.Because the outer surface of most of workpiece need be processed, and for the ease of the processing of lathe to workpiece, need have the clamping device that clamps from workpiece inside to fix workpiece, present clamping device complex structure, and operation is comparatively inconvenient.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, easy to operate inside clamping device.
In order to solve the problems of the technologies described above, the utility model provides a kind of inner clamping device, comprise base, the thimble that is connected with the base horizontal slip and the handle that contacts with thimble, be provided with steel ball between described thimble and the handle, the big steel ball that contacts with handle is tangent respectively with the small ball that contacts with thimble on same horizontal plane, and the diameter of big steel ball is greater than the diameter of small ball; Described handle is vertical with base to be slidingly connected; Described thimble is provided with two at least; Be with spring on the described thimble, two sections of spring are connected with top end with base respectively.
The direct contact workpiece of thimble in the such scheme, thimble moves in the vertical direction at handle, because the end of thimble is alternation mechanism, and thimble is related diametrically with the end of handle, so along with handle promotes thimble movement in the horizontal direction in the movement of base vertical direction, thereby make thimble hold out against the inside of workpiece, make whole work-piece be in inner clamped condition, this programme is simple in structure, and it is easy to operate, only need just can realize the work that clamps along the power of base vertical direction to the handle effect, in order to reset at thimble, be with spring on the thimble, two sections of spring are connected with top end with base respectively; A plurality of thimbles are stressed evenly to be provided with small ball between thimble and handle in order to make, and the steel ball that contacts with handle is tangent respectively with the big steel ball that contacts with thimble on same horizontal plane, and the diameter of big steel ball is greater than the diameter of small ball.
As the further restriction of technical solutions of the utility model, steadily balanced for the active force of handle, be threaded between handle and the base.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
As shown in Figure 1, the utility model provides a kind of inner clamping device, comprise base 6, three thimbles 4, screw putter 1 and steel balls, three thimbles 4 are evenly arranged in the horizontal direction around the vertical direction center line of base 6, the end of each thimble 4 is respectively equipped with supporting small ball 3, be with spring 7 on the thimble 4, two sections of spring 7 are connected with thimble 4 ends with base 6 respectively; Screw putter 1 is threaded with base 6, and screw putter 1 supporting big steel ball 2 is distinguished tangent settings with three small balls 3 that are in same horizontal plane.
When clamping operation, rotation screw putter 1 is progressive to the vertical direction of base 6, since with the diameter of the supporting big steel ball 2 of screw putter 1 greater than with the diameter of the supporting small ball 3 of thimble 4 and tangent respectively, when screw putter 1 is subjected to downward pressure, be subjected to thrust to horizontal direction with the supporting small ball 3 of thimble 4, thereby it is outwards mobile to promote thimble 4, makes thimble 4 top tight workpieces, realizes the inside of workpiece 5 is clamped.
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 can not influence effect and practical applicability that the utility model is implemented.
Claims (2)
1. inner clamping device, comprise base, the thimble that is connected with the base horizontal slip and the handle that contacts with thimble, it is characterized in that: be provided with steel ball between described thimble and the handle, the big steel ball that contacts with handle is tangent respectively with the small ball that contacts with thimble on same horizontal plane, and the diameter of big steel ball is greater than the diameter of small ball; Described handle is vertical with base to be slidingly connected; Described thimble is provided with two at least; Be with spring on the described thimble, two sections of spring are connected with top end with base respectively.
2. inner clamping device according to claim 1 is characterized in that: be threaded between described handle and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666463 CN203031316U (en) | 2012-12-06 | 2012-12-06 | Internal clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666463 CN203031316U (en) | 2012-12-06 | 2012-12-06 | Internal clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203031316U true CN203031316U (en) | 2013-07-03 |
Family
ID=48683459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220666463 Expired - Fee Related CN203031316U (en) | 2012-12-06 | 2012-12-06 | Internal clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203031316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465790A (en) * | 2019-07-31 | 2019-11-19 | 无锡诚石轴承有限公司 | The automatic trap capping machine of bearing takes lid grinding tool |
-
2012
- 2012-12-06 CN CN 201220666463 patent/CN203031316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465790A (en) * | 2019-07-31 | 2019-11-19 | 无锡诚石轴承有限公司 | The automatic trap capping machine of bearing takes lid grinding tool |
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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: 20130703 Termination date: 20131206 |