CN203664866U - Special tool for machining unthreaded hole gear - Google Patents
Special tool for machining unthreaded hole gear Download PDFInfo
- Publication number
- CN203664866U CN203664866U CN201320830215.7U CN201320830215U CN203664866U CN 203664866 U CN203664866 U CN 203664866U CN 201320830215 U CN201320830215 U CN 201320830215U CN 203664866 U CN203664866 U CN 203664866U
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- CN
- China
- Prior art keywords
- hole
- mandrel
- center
- connecting portion
- supporting disk
- 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 special clamp for machining an unthreaded hole gear. A first through hole is formed in the center of a main sleeve. The main sleeve comprises a machine tool connecting portion and a tool connecting portion, and a boss is arranged at the center of the tool connecting portion. The boss is in clearance fit with a second through hole, and a connecting disc is fixedly connected with the main sleeve through a first bolt. A third through hole concentric with the second through hole is formed in the center of a supporting disc, a disc-shaped supporting portion is arranged at one end of the supporting disc, a cone-shaped fixing portion is arranged at the other end of the supporting disc, and the cone-shaped fixing portion is provided with a threaded hole in the radial direction. The supporting disc and the connecting disc are fixedly connected through a second bolt. A stair-stepping mandrel is arranged in the third through hole in a clearance fit mode. A fourth through hole concentric with the third through hole is formed in the center of the mandrel. The supporting disc is fixedly connected with the mandrel through a third bolt, and the surface, matched with the third through hole, of the mandrel is a cylindrical surface. The universality of the unthreaded hole gear clamp is improved.
Description
Technical field
The utility model relates to a kind of special fixture, specifically, particularly relates to a kind of for clamping the special fixture of unthreaded hole gear.
Background technology
Unthreaded hole gear fixture is in the market structure as a whole, and add man-hour to the unthreaded hole gear of different model, just must be along with whole unthreaded hole gear special fixture is changed together.
Along with the demand in market, the kind of unthreaded hole gear is more and more, so the replacing of unthreaded hole gear fixture is just quite being bothered, and it is better that therefore those skilled in the art are devoted to develop a kind of versatility, is convenient for changing the unthreaded hole gear special fixture of unthreaded hole gear.
Utility model content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide the good unthreaded hole gear of a kind of versatility special fixture.
For achieving the above object, the utility model provides a kind of processing unthreaded hole gear special fixture, comprises supporting disk, terminal pad and mother set, and the center of described mother set is provided with the first through hole;
Described mother set comprises lathe connecting portion and frock connecting portion, and the center of described frock connecting portion is provided with boss; The center of described terminal pad is provided with second through hole concentric with described the first through hole, and described boss coordinates with described the second via clearance, and described terminal pad is fixedly connected with by the first bolt with described mother set;
The center of described supporting disk is provided with the third through-hole concentric with the second through hole, and described supporting disk one end is provided with plate-like support, and the other end of described supporting disk is provided with tapered fixed part, and described fixed part has been disposed radially screwed hole; Described supporting disk is fixedly connected with by the second bolt with terminal pad;
Described third through-hole internal clearance is combined with stair-stepping mandrel; The center of described mandrel is provided with the fourth hole concentric with described third through-hole; Described supporting disk is fixedly connected with by the 3rd bolt with mandrel, and the mating surface of described mandrel and described third through-hole is the face of cylinder.Mandrel and third through-hole adopt the face of cylinder to coordinate, better positioning core axle, thereby the machining accuracy of raising gear, and also can simplify the processing of mandrel.
By above technical scheme, mandrel is arranged in the through hole of fixed part and is screwed, and has facilitated the replacing of unthreaded hole gear, has improved the versatility of unthreaded hole gear fixture.
As preferably, described lathe connecting portion is the frustum of a cone of relatively described frock connecting portion projection.Above structure is convenient to lathe connecting portion and is fixed on lathe.
The beneficial effects of the utility model are: the utility model is applicable to the unthreaded hole gear of processing multiple types, have improved the versatility of unthreaded hole gear fixture.
Brief description of the drawings
Fig. 1 is the utility model concrete structure schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, a kind of processing unthreaded hole gear special fixture, comprises supporting disk 1, terminal pad 2 and mother set 3, and the center of described mother set 3 is provided with the first through hole 3d; Described mother set 3 comprises lathe connecting portion 3a and frock connecting portion 3b, and described frock connecting portion 3b center is provided with boss 3c;
As shown in Figure 1, the center of described terminal pad 2 is provided with second through hole 5 concentric with described the first through hole 3d, described boss 3c and described the second through hole 5 matched in clearance, and described terminal pad 2 is fixedly connected with by the first bolt 6 with described mother set 3;
As shown in Figure 1, the center of described supporting disk 1 is provided with the third through-hole 1c concentric with the second through hole 5, described supporting disk 1 one end is provided with plate-like support 1a, and the other end of described supporting disk 1 is provided with tapered fixed part 1b, and described fixed part 1b has been disposed radially screwed hole 1d; Described supporting disk 1 is fixedly connected with by the second bolt 4 with terminal pad 2;
As shown in Figure 1, described third through-hole 1c internal clearance is combined with stair-stepping mandrel 8; The center of described mandrel 8 is provided with the fourth hole 8c concentric with described third through-hole 1c; Described supporting disk 1 is fixedly connected with by the 3rd bolt 7 with mandrel 8, and described mandrel 8 is the face of cylinder with the mating surface of described third through-hole 1c.Mandrel adopts the face of cylinder to coordinate with the second through hole, better positioning core axle, thereby the machining accuracy of raising gear, and also can simplify the processing of mandrel.
As shown in Figure 1, described lathe connecting portion 3a is the frustum of a cone of relatively described frock connecting portion 3b projection.Operation principle of the present utility model is as follows:
When sectional fixture, first make the frustum of a cone of mother set 3 coordinate with lathe (not shown), thereby make mother set 3 can bear certain axial and radial load.Then make terminal pad 2 coordinate with mother set 3, and fixing by the first bolt 6, and supporting disk 1 coordinates with terminal pad 2, and adopts the second bolt 4 to locate.Finally make stepped mandrel 8 coordinate with supporting disk 2, and fixing with the 3rd bolt 7.Gripping sleeve coordinates with telescopic screw rod (not shown) on lathe.
While processing stair-stepping mandrel, end has the gripping sleeve (not shown) of spring function through bore, the keyway of bore is coordinated with the unthreaded hole of mandrel, then screw rod (not shown) retraction, drive gripping sleeve axially-movable, thereby the laminating of the conical end portion that makes gripping sleeve end face chamfering tightly and bore, the recline gear support portion of supporting disk 2 of the other end of gear.After gear blank fixes, can start gear blank to carry out Milling Process.
If desired, when processing has the stair-stepping mandrel of another model, directly change the mandrel matching, and replace whole mother set frock without entirety.
The utility model is only applicable to the processing of stair-stepping mandrel, for the mandrel of other inner hole structures, needs other special fixture.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in by the determined protection domain of claims.
Claims (2)
1. a processing unthreaded hole gear special fixture, is characterized in that: comprise supporting disk (1), terminal pad (2) and mother set (3), the center of described mother set (3) is provided with the first through hole (3d);
Described mother set (3) comprises lathe connecting portion (3a) and frock connecting portion (3b), and the center of described frock connecting portion (3b) is provided with boss (3c);
The center of described terminal pad (2) is provided with second through hole (5) concentric with described the first through hole (3d), described boss (3c) and described the second through hole (5) matched in clearance, described terminal pad (2) is fixedly connected with by the first bolt (6) with described mother set (3);
The center of described supporting disk (1) is provided with the third through-hole (1c) concentric with the second through hole (5), described supporting disk (1) one end is provided with plate-like support (1a), the other end of described supporting disk (1) is provided with tapered fixed part (1b), and described fixed part (1b) has been disposed radially screwed hole (1d); Described supporting disk (1) is fixedly connected with by the second bolt (4) with terminal pad (2);
Described third through-hole (1c) internal clearance is combined with stair-stepping mandrel (8); The center of described mandrel (8) is provided with the fourth hole (8c) concentric with described third through-hole (1c); Described supporting disk (1) is fixedly connected with by the 3rd bolt (7) with mandrel (8), and described mandrel (8) is the face of cylinder with the mating surface of described third through-hole (1c).
2. processing unthreaded hole gear special fixture as claimed in claim 1, is characterized in that: described lathe connecting portion (3a) is the frustum of a cone of relatively described frock connecting portion (3b) projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830215.7U CN203664866U (en) | 2013-12-16 | 2013-12-16 | Special tool for machining unthreaded hole gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830215.7U CN203664866U (en) | 2013-12-16 | 2013-12-16 | Special tool for machining unthreaded hole gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203664866U true CN203664866U (en) | 2014-06-25 |
Family
ID=50961200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320830215.7U Expired - Fee Related CN203664866U (en) | 2013-12-16 | 2013-12-16 | Special tool for machining unthreaded hole gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203664866U (en) |
-
2013
- 2013-12-16 CN CN201320830215.7U patent/CN203664866U/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: 20140625 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |