CN204338919U - The boring clamping device of self-centering type - Google Patents
The boring clamping device of self-centering type Download PDFInfo
- Publication number
- CN204338919U CN204338919U CN201420693901.9U CN201420693901U CN204338919U CN 204338919 U CN204338919 U CN 204338919U CN 201420693901 U CN201420693901 U CN 201420693901U CN 204338919 U CN204338919 U CN 204338919U
- Authority
- CN
- China
- Prior art keywords
- dish type
- expansion set
- self
- type expansion
- bushing plate
- 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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- Drilling And Boring (AREA)
Abstract
The utility model discloses the boring clamping device of a kind of self-centering type, comprise the bushing plate that chassis, multiple drill bushing, dish type expansion set and lower surface are provided with boss; Described bushing plate is provided with on the upside of described chassis, described bushing plate is fixedly installed multiple described drill bushing, screw rod is provided with in the middle part of described bushing plate, described screw rod upper end is provided with drive nut, described screw rod lower end is set with described dish type expansion set, described dish type expansion set inside is provided with the taper angle matched with described boss, is evenly provided with at least two expansion slots on the upside of described dish type expansion set along its circumferencial direction.The utility model has following characteristics: can self-centering, and bore position precision is high, swelling great efforts, and process does not produce skew, reasonable in design, and structure is simple, and easy to operate, compact, lightweight, easy accessibility, long service life, is convenient to promote the use of.
Description
Technical field
The utility model belongs to Machining Technology field, relates to a kind of Simple clamp, is specifically related to a kind of self-centering type clamping device for Drilling operation.
Background technology
The plate-like such as flange, end cap or annular work piece are common parts in machining industry, the method of this type of boring of traditional processing has to pass through crossed process before boring, because annular work piece all has centre bore, bad alignment point, therefore work of ruling is quite complicated, greatly add labor intensity, reduce production efficiency and machining accuracy can not effectively be ensured.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of self-centering type boring clamping device, and it can self-centering, bore position precision is high, swelling great efforts, and process does not produce skew, reasonable in design, structure is simple, easy to operate, compact, lightweight, easy accessibility, long service life, is convenient to promote the use of.
For achieving the above object, the technical solution adopted in the utility model is: the boring clamping device of a kind of self-centering type, comprising the chassis and multiple drill bushing for guiding drill bit to process boring on annular workpieces to be processed that play fixed supporting role, it is characterized in that: also comprise the bushing plate that the dish type expansion set that outwards holds out against annular workpieces to be processed from inside and lower surface are provided with boss; Described bushing plate is provided with on the upside of described chassis, described bushing plate is fixedly installed multiple described drill bushing, screw rod is provided with in the middle part of described bushing plate, described screw rod upper end is provided with drive nut, described screw rod lower end is set with described dish type expansion set, described dish type expansion set inside is provided with the taper angle matched with described boss, is evenly provided with at least two expansion slots on the upside of described dish type expansion set along its circumferencial direction.
The boring clamping device of above-mentioned self-centering type, is characterized in that: the span of described dish type expansion set hole taper α is 10 °-30 °.
The boring clamping device of above-mentioned self-centering type, is characterized in that: described boss sidewall is provided with transition arc.
The utility model compared with prior art has the following advantages:
(1) the boring clamping device of this self-centering type can self-centering when clamping annular workpieces, and bore position precision is high.
(2) the boring clamping device of this self-centering type adopts dish type expansion set to extend out swelling annular workpieces to be processed, and thus its swelling great efforts, process does not produce skew.
(3) the boring clamping device of this self-centering type is reasonable in design, and structure is simple, and annular workpieces only need be arranged on the relevant position of this fixture by operating personnel, tightens the clamp operation that drive nut can realize annular workpieces, uses very easy.
(4) the boring clamping device compact of this self-centering type, lightweight, easy accessibility, is convenient to carrying and safeguards.
(5) in use there is not rigid shock in the boring clamping device of this self-centering type, thus its long service life, is convenient to promote the use of.
Below by drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the front view of the utility model dish type expansion set.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the structural representation of the utility model bushing plate.
Description of reference numerals:
1-chassis; 2-drill bushing; 3-dish type expansion set;
3-1-expansion slot; 4-bushing plate; 4-1-boss;
5-screw rod; 6-drive nut; 7-annular workpieces.
Detailed description of the invention
The boring clamping device of a kind of self-centering type as Figure 1-Figure 4, comprising the chassis 1 and multiple drill bushing 2 for guiding drill bit to process boring on annular workpieces 7 to be processed that play fixed supporting role, also comprising the bushing plate 4 that the dish type expansion set 3 that outwards holds out against annular workpieces 7 to be processed from inside and lower surface are provided with boss 4-1; Described bushing plate 4 is provided with on the upside of described chassis 1, described bushing plate 4 is fixedly installed multiple described drill bushing 2, screw rod 5 is provided with in the middle part of described bushing plate 4, described screw rod 5 upper end is provided with drive nut 6, described screw rod 5 lower end is set with described dish type expansion set 3, described dish type expansion set 3 inside is provided with the taper angle matched with described boss 4-1, is evenly provided with at least two expansion slot 3-1 on the upside of described dish type expansion set 3 along its circumferencial direction, preferably four.
In the present embodiment, the span of described dish type expansion set 3 hole taper α is 10 °-30 °, preferably 20 °.
In the present embodiment, described boss 4-1 sidewall is provided with transition arc, and transition arc can facilitate dish type expansion set 3 openend to slip into.
The course of work of the boring clamping device of the utility model self-centering type is: first boring for this self-centering type clamping device is fixed on operating position, spanner is used to turn drive nut 6 clockwise, screw rod 5 can drive dish type expansion set 3 to move upward, the endoporus conical surface of dish type expansion set 3 and the interaction of boss 4-1, dish type expansion set 3 can expand outwardly equably, thus the endoporus of swelling annular workpieces 7 to be processed.Annular workpieces 7 to be processed is by after swelling, and start drilling machine, drill bit can carry out Drilling operation through the drill bushing 2 be arranged on bushing plate 4.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.
Claims (3)
1. the boring clamping device of self-centering type, comprising the chassis (1) that play fixed supporting role and multiple for guiding drill bit at the drill bushing (2) of the upper processing boring of annular workpieces to be processed (7), it is characterized in that: also comprise the bushing plate (4) that the dish type expansion set (3) that outwards holds out against annular workpieces to be processed (7) from inside and lower surface are provided with boss (4-1), upside, described chassis (1) is provided with described bushing plate (4), described bushing plate (4) is fixedly installed multiple described drill bushing (2), described bushing plate (4) middle part is provided with screw rod (5), described screw rod (5) upper end is provided with drive nut (6), described screw rod (5) lower end is set with described dish type expansion set (3), described dish type expansion set (3) inside is provided with the taper angle matched with described boss (4-1), described dish type expansion set (3) upside is evenly provided with at least two expansion slots (3-1) along its circumferencial direction.
2. according to the boring clamping device of self-centering type according to claim 1, it is characterized in that: the span of described dish type expansion set (3) hole taper α is 10 °-30 °.
3. according to the boring clamping device of self-centering type according to claim 1, it is characterized in that: described boss (4-1) sidewall is provided with transition arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693901.9U CN204338919U (en) | 2014-11-18 | 2014-11-18 | The boring clamping device of self-centering type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693901.9U CN204338919U (en) | 2014-11-18 | 2014-11-18 | The boring clamping device of self-centering type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204338919U true CN204338919U (en) | 2015-05-20 |
Family
ID=53222221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420693901.9U Expired - Fee Related CN204338919U (en) | 2014-11-18 | 2014-11-18 | The boring clamping device of self-centering type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204338919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914645A (en) * | 2015-12-24 | 2017-07-04 | 上海电气电站设备有限公司 | For the Boring machine of rotor coupling scene bore hole |
-
2014
- 2014-11-18 CN CN201420693901.9U patent/CN204338919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914645A (en) * | 2015-12-24 | 2017-07-04 | 上海电气电站设备有限公司 | For the Boring machine of rotor coupling scene bore hole |
| CN106914645B (en) * | 2015-12-24 | 2019-08-06 | 上海电气电站设备有限公司 | Boring machine for rotor coupling scene bore hole |
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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: 20150520 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |