CN103769879A - Taper-lock external expansion type centering drilling clamp - Google Patents
Taper-lock external expansion type centering drilling clamp Download PDFInfo
- Publication number
- CN103769879A CN103769879A CN201210412127.5A CN201210412127A CN103769879A CN 103769879 A CN103769879 A CN 103769879A CN 201210412127 A CN201210412127 A CN 201210412127A CN 103769879 A CN103769879 A CN 103769879A
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- CN
- China
- Prior art keywords
- expansion set
- taper
- lock
- boss
- hole
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title abstract description 5
- 238000003754 machining Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008961 swelling Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/02—Boring templates or bushings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a taper-lock external expansion type centering drilling clamp which comprises a drill plate with a through hole formed in the middle. A boss is arranged at the lower end of the drill plate. Multiple drill bushes are evenly arranged on the drill plate in the axial direction of the drill plate. A step screw is arranged in the through hole in the middle of the drill plate. The lower end of the step screw penetrates through a disc-shaped taper-lock and is provided with a lower nut and an upper nut is installed at the upper end of the step screw. Multiple expansion grooves are evenly formed in the upper side of the disc-shaped taper-lock in the circumferential direction. An inner hole of the disc-shaped taper-lock has the taper so as to be matched with the boss in a sliding mode. The taper-lock external expansion type centering drilling clamp has the following advantages of being large in expansion force, free of deviation in the machining process, capable of being automatically centered, high in machining accuracy, reasonable in design, simple in structure, convenient to operate, small in size, low in weight, convenient to disassemble, assemble and transport, low in production cost and convenient to popularize and use.
Description
Technical field
The invention belongs to Machining Technology field, relate to a kind of fixture, be specifically related to a kind of expansion set and extend out formula centering boring grab.
Background technology
At present, along with social development and scientific and technological progress, auto industry has obtained great development, and increasing automobile has entered into huge numbers of families, and the demand of automobile brake disc also more more arrives always, and factory often receives the order of large quantities of automobile brake discs.Position, the hole required precision of the thread Pilot hole on automobile brake disc is higher, use traditional three points centering boring grab processing, because its 3 swelling dynamics are inadequate, in the time using this fixture to carry out Drilling operation, have micro-skew, thereby generation mismachining tolerance, cannot guarantee the positional precision in these holes, cause its position, hole not reach pattern requirement.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, provide a kind of expansion set to extend out formula centering boring grab, its swelling great efforts, process does not produce skew, can self-centering, and machining accuracy is high, reasonable in design, simple in structure, easy to operate, volume is small and exquisite, lightweight, easy accessibility, is convenient to carrying, production cost is low, is convenient to promote the use of.
For achieving the above object, the technical solution used in the present invention is: a kind of expansion set extends out formula centering boring grab, comprise the bushing plate of middle part with through hole, it is characterized in that: described bushing plate lower end is provided with boss, described bushing plate is evenly provided with multiple drill bushings around its axis direction, in described bushing plate middle through-hole, be provided with ladder screw rod, described ladder screw rod lower end is provided with lower nut through dish type expansion set, described ladder screw rod upper end is provided with top nut, described dish type expansion set upside is evenly provided with multiple expansion slots along its circumferencial direction, described dish type expansion set endoporus is provided with the tapering being slidably matched with boss.
Above-mentioned expansion set extends out formula centering boring grab, it is characterized in that: on described boss, be provided with half fillet.
Above-mentioned expansion set extends out formula centering boring grab, it is characterized in that: the span of described dish type expansion set hole taper α is 10 °-30 °.
The present invention compared with prior art has the following advantages:
(1) this expansion set extends out formula centering boring grab and adopts dish type expansion set to extend out swelling workpiece to be processed, swelling great efforts, and process does not produce skew, simultaneously can self-centering, machining accuracy is high.
(2) it is reasonable, simple in structure that this expansion set extends out formula centering boring jig Design, and operating personnel only need be arranged on workpiece the relevant position of this fixture, tightens top nut and can realize the clamp operation of workpiece, uses very easy.
(3) it is long-pending small and exquisite, lightweight that this expansion set extends out formula centering boring clamp body, and easy accessibility, is convenient to carrying, luck tendency.
(4) this expansion set extends out a lot of parts of formula centering boring grab and is all convenient to very much produce, buy, thereby its production cost is very low, is convenient to promote the use of.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is top view of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the front view of dish type expansion set of the present invention.
Fig. 4 is the B-B cutaway view of Fig. 3.
Fig. 5 is the structural representation of bushing plate of the present invention.
Description of reference numerals:
1-workpiece; 2-drill bushing; 3-dish type expansion set;
3-1-expansion slot; 4-bushing plate; 4-1-through hole;
4-2-boss; 5-lower nut; 6-ladder screw rod;
7-top nut.
The specific embodiment
A kind of expansion set as Figure 1-Figure 5 extends out formula centering boring grab, comprise the bushing plate 4 of middle part with through hole 4-1, described bushing plate 4 lower ends are provided with boss 4-2, described bushing plate 4 is evenly provided with multiple drill bushings 2 around its axis direction, in described bushing plate 4 middle through-hole 4-1, be provided with ladder screw rod 6, described ladder screw rod 6 lower ends are provided with lower nut 5 through dish type expansion set 3, described ladder screw rod 6 upper ends are provided with top nut 7, described dish type expansion set 3 upsides are evenly provided with multiple expansion slot 3-1 along its circumferencial direction, described dish type expansion set 3 endoporus are provided with the tapering being slidably matched with boss 4-2.
As shown in Figure 2 and Figure 5, on described boss 4-2, be provided with half fillet, it is smooth and easy that half fillet can make dish type expansion set 3 slide.
As shown in Figure 4, the span of described dish type expansion set 3 hole taper α is 10 °-30 °, preferably 15 ° of α.
The course of work that expansion set of the present invention extends out formula centering boring grab is: as shown in Figure 2, first the dish type expansion set 3 that this expansion set is extended out to formula centering boring grab is placed in the endoporus of workpiece 1, turn clockwise top nut 7, dish type expansion set 3 is installed in the lower nut 5 of ladder screw rod 6 lower ends and upwards strains, by the interaction of the dish type expansion set 3 endoporus conical surfaces and boss 4-2, the cylindrical of dish type expansion set 3 expands outwardly and the endoporus of swelling workpiece 1 equably.Workpiece 1, by after swelling, starts rig, and drill bit can carry out Drilling operation through the drill bushing 2 being arranged on bushing plate 4.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (3)
1. an expansion set extends out formula centering boring grab, comprise the bushing plate (4) of middle part with through hole (4-1), it is characterized in that: described bushing plate (4) lower end is provided with boss (4-2), described bushing plate (4) is evenly provided with multiple drill bushings (2) around its axis direction, in described bushing plate (4) middle through-hole (4-1), be provided with ladder screw rod (6), described ladder screw rod (6) lower end is provided with lower nut (5) through dish type expansion set (3), described ladder screw rod (6) upper end is provided with top nut (7), described dish type expansion set (3) upside is evenly provided with multiple expansion slots (3-1) along its circumferencial direction, described dish type expansion set (3) endoporus is provided with the tapering being slidably matched with boss (4-2).
2. extend out formula centering boring grab according to expansion set claimed in claim 1, it is characterized in that: on described boss (4-2), be provided with half fillet.
3. extend out formula centering boring grab according to expansion set claimed in claim 1, it is characterized in that: the span of described dish type expansion set (3) hole taper α is 10 °-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412127.5A CN103769879A (en) | 2012-10-25 | 2012-10-25 | Taper-lock external expansion type centering drilling clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412127.5A CN103769879A (en) | 2012-10-25 | 2012-10-25 | Taper-lock external expansion type centering drilling clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103769879A true CN103769879A (en) | 2014-05-07 |
Family
ID=50562888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210412127.5A Pending CN103769879A (en) | 2012-10-25 | 2012-10-25 | Taper-lock external expansion type centering drilling clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103769879A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345056A (en) * | 2014-08-20 | 2016-02-24 | 山东银鹰炊事机械有限公司 | Method for machining semicircular deep blind hole key groove |
| CN106825658A (en) * | 2017-03-03 | 2017-06-13 | 哈尔滨理工大学 | A kind of thin plate into wait wall thickness deep hole technique |
| CN108890362A (en) * | 2018-09-14 | 2018-11-27 | 山东瀚业机械有限公司 | A kind of column cap Excircle machining drilling equipment |
| CN114132557A (en) * | 2021-11-10 | 2022-03-04 | 北自所(北京)科技发展股份有限公司 | Automatic centering expansion type yarn placing disc |
| CN119282212A (en) * | 2024-10-09 | 2025-01-10 | 陕西飞机工业有限责任公司 | A self-expanding drilling jig |
| CN119670976A (en) * | 2024-12-11 | 2025-03-21 | 国家林业和草原局产业发展规划院 | A prediction method for forest pests |
-
2012
- 2012-10-25 CN CN201210412127.5A patent/CN103769879A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345056A (en) * | 2014-08-20 | 2016-02-24 | 山东银鹰炊事机械有限公司 | Method for machining semicircular deep blind hole key groove |
| CN106825658A (en) * | 2017-03-03 | 2017-06-13 | 哈尔滨理工大学 | A kind of thin plate into wait wall thickness deep hole technique |
| CN106825658B (en) * | 2017-03-03 | 2019-01-25 | 哈尔滨理工大学 | A process of thin plate into deep hole with equal wall thickness |
| CN108890362A (en) * | 2018-09-14 | 2018-11-27 | 山东瀚业机械有限公司 | A kind of column cap Excircle machining drilling equipment |
| CN108890362B (en) * | 2018-09-14 | 2024-06-11 | 山东瀚业机械有限公司 | Column cap excircle processing drilling equipment |
| CN114132557A (en) * | 2021-11-10 | 2022-03-04 | 北自所(北京)科技发展股份有限公司 | Automatic centering expansion type yarn placing disc |
| CN119282212A (en) * | 2024-10-09 | 2025-01-10 | 陕西飞机工业有限责任公司 | A self-expanding drilling jig |
| CN119670976A (en) * | 2024-12-11 | 2025-03-21 | 国家林业和草原局产业发展规划院 | A prediction method for forest pests |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |