CN202804269U - Outwards-expanding drill bit - Google Patents
Outwards-expanding drill bit Download PDFInfo
- Publication number
- CN202804269U CN202804269U CN 201220391168 CN201220391168U CN202804269U CN 202804269 U CN202804269 U CN 202804269U CN 201220391168 CN201220391168 CN 201220391168 CN 201220391168 U CN201220391168 U CN 201220391168U CN 202804269 U CN202804269 U CN 202804269U
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- China
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- plate
- location
- tire
- drill bit
- bores
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- Expired - Fee Related
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Abstract
The utility model relates to equipment specially applied to drilling machine production and processing. In order to solve the technical problems of drilling holes on flanges at the ends of large cylindrical parts, an outwards-expanding drill bit is provided. The outwards-expanding drill bit comprises a round location plate and a round drill bit plate, two plates are concentrically attached and fixed through bolts, a plurality of drill sleeves are evenly arranged on a plate body of the drill bit plate close to the edge, three radial location grooves are evenly arranged on the location plate, location blocks are arranged in the location grooves, the heights of the location blocks are identical with the depths of the location grooves, inwards-concave arc faces are arranged at the intersection ends of the location blocks, the three location blocks intersect to form conical holes at the combination positions, and a screw penetrates through the center of the drill bit plate to exert force on the ends of the location blocks in the location grooves. The outwards-expanding drill bit greatly improves production efficiency and effectively prevents waste from generating.
Description
Technical field
This patent relates to the equipment that is exclusively used in the drilling machine production and processing, especially a kind ofly is applicable to that boring outer expanding bores tire on the flange of great circle barrier part.
Background technology
In production and processing, often run into and to hole in the end flange of great circle barrier part, take common ring flange as example, must be with endoporus as positioning datum during boring, and if interior hole dimension when changing, it is very uneconomic boring tire according to one of hole dimension manufacturing in each.And if adopt common line drawing method to hole, if workpiece more greatly then be difficult for to use dividing head, causes the angle-differentiated in each hole of boring just inaccurate, make troubles to installation, very easily produce waste product.
Summary of the invention
For overcoming at present in great circle barrier part end flange hole existing difficult location, the inaccurate technical problem of each orifice angle calibration, the utility model provides a kind of outer expanding to bore tire.
The technical solution adopted in the utility model is: outer expanding bores tire, comprise a circular location-plate and a circular tire plate that bores, two plates are fitted fixing by bolt with one heart, boring the tire plate is positioned on the location-plate, bore the diameter of tire plate greater than the diameter of location-plate, on the submarginal plate body of brill tire plate, evenly be provided with several drill bushings, drill bushing is positioned at outside the location-plate, it is characterized in that: described location-plate, its with the binding face that bores the tire plate on evenly be provided with 3 radial detents, 3 radial detents intersect at the circle centre position of location-plate, placement positioning piece in the locating slot, the height of locating piece is consistent with the degree of depth of locating slot, and the crossing end of locating piece is provided with the cambered surface that caves inward, and three locating pieces form taper hole in its combination place after intersecting combination; One leading screw passes its bottom, center of boring the tire plate and offsets with taper hole on the location-plate, leading screw by with bore the tire plate on hold-doun nut cooperate the locating piece end application of force in the locating slot, the bottom of screw mandrel is provided with the tapering identical with taper hole.
Described 3 radial detents intersect at the circle centre position of location-plate, and the circle centre position of location-plate forms through hole.
Described leading screw top is provided with force application rod.
Described location-plate and the seam that bores the tire plate and be provided with to cooperate.
Should be outer expanding to bore tire manufacturing simple, cost is low, flexible operation is easy-to-use, can guarantee with the cylinder endoporus as positioning datum the angle-differentiated that assurance cylindrical element end flange is holed and correct location.Should can enhance productivity greatly by outer expanding brill tire, effectively prevent the generation of waste product.
Description of drawings
Accompanying drawing was for boring each isolation of components status architecture schematic diagram of tire by outer expanding.
Among the figure, 1, location-plate, 2, bore the tire plate, 3, fixing threaded hole, 4, drill bushing, 5, locating slot, 6, locating piece, 7, taper hole, 8, leading screw, 9, hold-doun nut, 10, force application rod, 11, through hole, 12, seam.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
As shown in drawings, outer expanding bores tire, comprise a circular location-plate 1 and a circular tire plate 2 that bores, on brill tire plate 2 submarginal plate bodys, evenly be provided with several drill bushings 4, the diameter of location-plate 1 is consistent with the internal diameter of the cylindrical element of processing, bore the diameter of tire plate 2 and determine according to the diameter of the cylindrical element end flange of processing, its diameter should be more than or equal to the diameter of cylindrical element end flange, and the position of boring the drill bushing 4 on the tire plate 2 is determined according to the bore position on the cylindrical element end flange of processing.Therefore, bore the diameter of tire plate 2 greater than the diameter of location-plate 1, after the concentric applying of two plates was fixing, the drill bushing 4 that bores on the tire plate 2 was positioned at outside the location-plate 1.
As shown in drawings, be provided with fixing threaded hole 3 so that adopt bolt that two plates are fixed at location-plate 1 with brill tire plate 2.
As shown in drawings, evenly be provided with the circle centre position that 5,3 radial detents of 3 radial detents intersect at location-plate 1 on the surface of location-plate 1.
As shown in drawings, this brill tire also is provided with three locating pieces 6 that are used for being placed on locating slot 5, and the height of locating piece 6 is consistent with the degree of depth of locating slot 5.
As shown in drawings, the crossing end of each locating piece 6 is provided with the cambered surface that caves inward, and forms taper hole 7 in its combination place after three locating pieces 6 intersect combination.
As shown in drawings, be provided with a leading screw 8 at the center of boring tire plate 2, leading screw 8 by with bore tire plate 2 on hold-doun nut 9 cooperate and can move up and down, the bottom of screw mandrel 8 is provided with the tapering identical with taper hole 7.
As shown in drawings, locating piece 6 is put in the locating slot 5, and after the employing bolt was fixing with location-plate 1 and 2 applyings of brill tire plate, rotating threaded shaft 8 moved down, when the taper hole 7 that three location-plates is formed when the conical lower portion of leading screw 8 applied active force, three locating pieces 6 namely can outwards move.
During work location-plate 1 is put into great circle barrier part endoporus, the brill tire plate 2 that drill bushing 4 is housed is positioned on the great circle barrier part end flange, rotating threaded shaft 8 moves down, conical lower portion by leading screw 8 applies active force to taper hole 7, three locating pieces 6 are outwards mobile under the effect of component, the outer end of locating piece 6 withstands on the great circle barrier part inwall, fastening internally after, just can carry out drilling to workpiece.
As shown in drawings, the distance that outwards moves for enlarging three locating pieces, described 3 radial detents intersect at the circle centre position of location-plate, and the circle centre position of location-plate forms through hole 11, and leading screw 8 can move down to greatest extent.
As shown in drawings, be provided with force application rod 10 to make things convenient for rotating threaded shaft on leading screw 8 tops.
For making location-plate 1 realize accurate positioning combination with boring tire plate 2, as shown in drawings, the seam on location-plate 1 and the not shown brill tire of seam 12(plate that brill tire plate 2 is provided with to cooperate).
Claims (4)
1. outer expanding bores tire, comprise a circular location-plate and a circular tire plate that bores, two plates are fitted fixing by bolt with one heart, boring the tire plate is positioned on the location-plate, bore the diameter of tire plate greater than the diameter of location-plate, on the submarginal plate body of brill tire plate, evenly be provided with several drill bushings, drill bushing is positioned at outside the location-plate, it is characterized in that: described location-plate, its with the binding face that bores the tire plate on evenly be provided with 3 radial detents, 3 radial detents intersect at the circle centre position of location-plate, placement positioning piece in the locating slot, the height of locating piece is consistent with the degree of depth of locating slot, and the crossing end of locating piece is provided with the cambered surface that caves inward, and three locating pieces form taper hole in its combination place after intersecting combination; One leading screw passes its bottom, center of boring the tire plate and offsets with taper hole on the location-plate, leading screw by with bore the tire plate on hold-doun nut cooperate the locating piece end application of force in the locating slot, the bottom of screw mandrel is provided with the tapering identical with taper hole.
2. outer expanding according to claim 1 bores tire, and it is characterized in that: described 3 radial detents intersect at the circle centre position of location-plate, and the circle centre position of location-plate forms through hole.
3. outer expanding according to claim 1 bores tire, and it is characterized in that: described leading screw top is provided with force application rod.
4. outer expanding according to claim 1 bores tire, it is characterized in that: the seam that described location-plate and brill tire plate are provided with to cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391168 CN202804269U (en) | 2012-08-09 | 2012-08-09 | Outwards-expanding drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391168 CN202804269U (en) | 2012-08-09 | 2012-08-09 | Outwards-expanding drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202804269U true CN202804269U (en) | 2013-03-20 |
Family
ID=47863213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391168 Expired - Fee Related CN202804269U (en) | 2012-08-09 | 2012-08-09 | Outwards-expanding drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202804269U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784951A (en) * | 2012-08-09 | 2012-11-21 | 山东华力电机集团股份有限公司 | Outward expansion type drill tire |
| CN103495946A (en) * | 2013-10-14 | 2014-01-08 | 无锡凯涵科技有限公司 | Supporting plate structure of positioning and clamping device |
| CN113245599A (en) * | 2021-06-11 | 2021-08-13 | 四川航天长征装备制造有限公司 | Adjustable jig for drilling holes in uniformly distributed smooth holes of flange plates |
-
2012
- 2012-08-09 CN CN 201220391168 patent/CN202804269U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784951A (en) * | 2012-08-09 | 2012-11-21 | 山东华力电机集团股份有限公司 | Outward expansion type drill tire |
| CN103495946A (en) * | 2013-10-14 | 2014-01-08 | 无锡凯涵科技有限公司 | Supporting plate structure of positioning and clamping device |
| CN113245599A (en) * | 2021-06-11 | 2021-08-13 | 四川航天长征装备制造有限公司 | Adjustable jig for drilling holes in uniformly distributed smooth holes of flange plates |
| CN113245599B (en) * | 2021-06-11 | 2022-12-23 | 四川航天长征装备制造有限公司 | Adjustable jig for drilling holes in uniformly distributed smooth holes of flange plates |
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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: 20130320 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |