CN203936392U - Top anti-drop structure - Google Patents
Top anti-drop structure Download PDFInfo
- Publication number
- CN203936392U CN203936392U CN201420169492.2U CN201420169492U CN203936392U CN 203936392 U CN203936392 U CN 203936392U CN 201420169492 U CN201420169492 U CN 201420169492U CN 203936392 U CN203936392 U CN 203936392U
- Authority
- CN
- China
- Prior art keywords
- live centre
- guide post
- shaped groove
- kidney
- centre
- 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
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- Prostheses (AREA)
Abstract
The utility model discloses a kind of top anti-drop structure, comprises live centre, it is characterized in that: described live centre is set in guide post; The contact-making surface of described live centre and described guide post is the conical surface; The span of the coning angle of the described conical surface is 2 °～3 °.Live centre and guide post coordinate by tapering, utilize frictional force mutually to suck, and prevent in process that live centre pumps at lathe, because inertia comes off; In the situation that inertia force is larger, banking pin coordinates and further prevents that live centre from dropping with kidney-shaped groove, avoids occurring security incident.
Description
Technical field
The utility model belongs to the servicing unit of lathe class live centre clamping, when one that concrete is prevents top top tight workpiece, and the anti-drop structure that causes it to drop because of long-time back and forth movement.
Background technology
In vertical Induction Hardening Machine field, slave unit (live centre) in workpiece repeated clamping process is moved back and forth up and down, like this, live centre can drop under the effect of inertia, easily pounds and hurts sb.'s feelings and thing.
Utility model content
The purpose of this utility model is the safety for the person that protects machine operation, and the top anti-drop structure of one of design, in ensureing safety operation, does not change the attractive in appearance of lathe.
For achieving the above object, the technical solution adopted in the utility model is: top anti-drop structure, comprise live centre, and it is characterized in that: described live centre is set in guide post; The contact-making surface of described live centre and described guide post is the conical surface; The span of the coning angle of the described conical surface is 2 °～3 °; Described live centre is provided with kidney-shaped groove, the length direction of described kidney-shaped groove and the axially parallel of described live centre; Described guide post is provided with banking pin, and described banking pin one end is stretched in described kidney-shaped groove and is threaded with described guide post.
Further, the length of described kidney-shaped groove is 5 millimeters～30 millimeters.
The beneficial effects of the utility model are: live centre and guide post coordinate by tapering, utilize frictional force mutually to suck, and prevent in process that live centre pumps at lathe, because inertia comes off; In the situation that inertia force is larger, banking pin coordinates and further prevents that live centre from dropping with kidney-shaped groove, avoids occurring security incident.
Brief description of the drawings
Fig. 1 is the cross-sectional schematic of the utility model front view,
Fig. 2 is the cross-sectional schematic of the utility model left view.
Detailed description of the invention
As illustrated in figs. 1 and 2, the top anti-drop structure of the utility model design, comprises live centre 1, and described live centre 1 is set in guide post 2; Described live centre 1 is the conical surface 3 with the contact-making surface of described guide post 2; The span of the cone angle alpha of the described conical surface 3 is 2 °～3 °.
Further, described live centre 1 is provided with kidney-shaped groove 4, the axially parallel of the length direction of described kidney-shaped groove 4 and described live centre 1; Described guide post 2 is provided with banking pin 5, and described banking pin 5 one end are stretched in described kidney-shaped groove 4 and are threaded with described guide post 2.
Further, the length of described kidney-shaped groove 4 is 5 millimeters～30 millimeters.
Live centre 1 and guide post 2 coordinate by tapering, utilize frictional force mutually to suck, and prevent in process that live centre 1 pumps at lathe, because inertia comes off; In the situation that inertia force is larger, banking pin 5 coordinates with kidney-shaped groove 5 and further prevents that live centre 1 from dropping, and avoids occurring security incident.
Claims (2)
1. top anti-drop structure, comprises live centre, it is characterized in that: described live centre is set in guide post; The contact-making surface of described live centre and described guide post is the conical surface; The span of the coning angle of the described conical surface is 2 °～3 °; Described live centre is provided with kidney-shaped groove, the length direction of described kidney-shaped groove and the axially parallel of described live centre; Described guide post is provided with banking pin, and described banking pin one end is stretched in described kidney-shaped groove and is threaded with described guide post.
2. top anti-drop structure according to claim 1, is characterized in that: the length of described kidney-shaped groove is 5 millimeters～30 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169492.2U CN203936392U (en) | 2014-04-09 | 2014-04-09 | Top anti-drop structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169492.2U CN203936392U (en) | 2014-04-09 | 2014-04-09 | Top anti-drop structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203936392U true CN203936392U (en) | 2014-11-12 |
Family
ID=51855740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420169492.2U Expired - Fee Related CN203936392U (en) | 2014-04-09 | 2014-04-09 | Top anti-drop structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203936392U (en) |
-
2014
- 2014-04-09 CN CN201420169492.2U patent/CN203936392U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20190409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |