CN105983715A - Expanding drill for deep hole machining - Google Patents
Expanding drill for deep hole machining Download PDFInfo
- Publication number
- CN105983715A CN105983715A CN201510041055.1A CN201510041055A CN105983715A CN 105983715 A CN105983715 A CN 105983715A CN 201510041055 A CN201510041055 A CN 201510041055A CN 105983715 A CN105983715 A CN 105983715A
- Authority
- CN
- China
- Prior art keywords
- chute
- drill bit
- guide post
- deep hole
- hole machining
- 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
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- Drilling And Boring (AREA)
Abstract
The invention relates to an expanding drill for deep hole machining. The expanding drill includes a body; the body includes a drill bit, a drill rod and a Mohs taper shank; the drill bit includes a blade section and a connection rod connected to the blade section; an end surface connected to the drill bit, of the drill rod is provided with a driving slide groove; the connection rod of the drill bit is slidingly arranged in the driving slide groove; a reset spring is arranged between a free end of the connection rod and the bottom of the driving slide groove; and cross sections of the connection rod and the driving slide groove are polygons, and the driving slide groove and the connection rod match each other. The expanding drill is good in straightness of deep hole machining, can effectively prevent damage to the blade due to over-force, and is prolonged in service life.
Description
Technical field
The present invention relates to a kind of deep hole machining field, particularly to a kind of reamer for deep hole machining.
Background technology
In machining, it is frequently encountered by deep hole machining, and being used for one of common tool of deep hole machining is exactly reamer.Reaming
Boring and limited by aperture, the diameter of drilling rod is little, and length is big, and the therefore poor rigidity of drilling rod, intensity is low.Easily produce man-hour adding
Raw vibration, ripple, tapering and affect linearity and the surface roughness of deep hole.Owing to processing hole has certain depth, really
Determine the reamer tool that whether puts in place to acquire a certain degree of difficulty.In the course of processing, need reamer is applied axial power, but often
Service life can be reduced because undue force causes knife edge part to damage.
Summary of the invention
It is an object of the invention to provide a kind of deep hole machining linearity good and can effectively prevent from causing blade because of overexertion
The reamer for deep hole machining damaged.
The technical scheme realizing the object of the invention is: the present invention has body；Described body includes drill bit, drilling rod and Mohs
Taper shank；Described drill bit includes blade part and connects the connecting rod of blade part；The end face that described drilling rod is connected with drill bit is provided with
Transmission chute；The connecting rod of described drill bit is slidably arranged in transmission chute, the free end of connecting rod and the end of transmission chute
Back-moving spring it is provided with between portion；The cross section of described connecting rod and transmission chute is polygon, transmission chute and connecting rod
Coordinate.
Being set with guide post outside above-mentioned drilling rod, drilling rod rotates and is arranged in guide post, and drill bit stretches out from one end of guide post,
Morse taper shank stretches out from the other end of guide post；The diameter of described guide post is less than the diameter of drill bit；Described guide post
Outer wall is provided with two or more along the equally distributed chute of its circumference, chute along guide post axis radially along stretching；Institute
A guidance set it is equipped with in stating each chute；Described guidance set includes guide pad and spring, and guide pad slides and arranges
In chute, between guide pad and the bottom of chute, it is provided with spring；The free end of described guide pad stretches out chute and freedom
The end face of end exceeds the external diameter of drill bit.
Above-mentioned guide pad is ball；The mouth diameters of described chute is less than the diameter of guide pad, and guide pad is slidably arranged in cunning
Groove is interior and is provided with spring between guide pad and the bottom of chute；It is free end that described ball stretches out the part of chute.
The inwall of above-mentioned guide post is provided with bearing, and the external stator of bearing and the inwall of guide post are fixing to be connected, bearing interior
Rotor is fixing with drilling rod to be connected.
Above-mentioned guide post is provided with external screw thread, external screw thread coordinates and is provided with stop nut；The external diameter of described stop nut is more than
The diameter of drill bit.
The present invention has a positive effect: (1) present invention makes to exist between drill bit and drilling rod certain by back-moving spring
Buffering, can have certain buffering, improve the service life of reamer when overexertion；(2) present invention is by leading
To bar, add the rigidity of reamer, improve the speed of deep hole machining；(3) present invention is achieved by guidance set
The linearity of reamer, improves crudy；(4) present invention by bearing can improve the using effect of whole reamer with
Service life；(5) present invention can realize pre-determined bit by stop nut, in order to determines working depth, improves and adds working medium
Amount and process velocity.
Accompanying drawing explanation
It is clearly understood to make present disclosure be easier to, below according to specific embodiment and combine accompanying drawing, to this
Invention is described in further detail, wherein
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Detailed description of the invention
See that Fig. 1 and Fig. 2, the present invention have body 1；Described body 1 includes drill bit 11, drilling rod 12 and Morse taper shank
13；Described drill bit 11 includes blade part 11-1 and connects connecting rod 11-2 of blade part 11-1；Described drilling rod 12
The end face being connected with drill bit 11 is provided with transmission chute；Connecting rod 11-2 of described drill bit 11 is slidably arranged in transmission chute
In, it is provided with back-moving spring 3 between free end and the bottom of transmission chute of connecting rod 11-2；Described connecting rod 11-2 and
The cross section of transmission chute is polygon, and transmission chute coordinates with connecting rod 11-2.
Being set with guide post 2 outside described drilling rod 12, the inwall of guide post 2 is provided with bearing 5, the external stator of bearing 5 with
The inwall of guide post 2 is fixing to be connected, and the internal rotor of bearing 5 is fixing with drilling rod 12 to be connected；Described drill bit 11 is from guide post
One end of 2 is stretched out, and Morse taper shank 13 stretches out from the other end of guide post 2；The diameter of described guide post 2 is less than drill bit
The diameter of 11；The outer wall of described guide post 2 is provided with two or more along the equally distributed chute of its circumference, chute edge
Guide post axis radially along stretching；A guidance set 4 it is equipped with in described each chute；Described guidance set 4 includes
Guide pad 41 and spring 42；Described guide pad 41 is ball；The mouth diameters of described chute is straight less than guide pad 41
Footpath, guide pad 41 is slidably arranged in chute and is provided with spring 42 between guide pad 41 and the bottom of chute；Described ball
The end face that part is free end and free end stretching out chute exceeds the external diameter of drill bit 11.
Described guide post 2 is provided with external screw thread, external screw thread coordinates and is provided with stop nut 6；Outside described stop nut 6
Footpath is more than the diameter of drill bit 11.
Particular embodiments described above, has been carried out the purpose of the present invention, technical scheme and beneficial effect the most in detail
Illustrate, be it should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to the present invention,
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included in this
Within bright protection domain.
Claims (5)
1., for a reamer for deep hole machining, there is body (1)；Described body (1) include drill bit (11),
Drilling rod (12) and Morse taper shank (13)；It is characterized in that: described drill bit (11) includes blade part (11-1) and connects
The connecting rod (11-2) of blade part (11-1)；The end face that described drilling rod (12) is connected with drill bit (11) is provided with transmission
Chute；The connecting rod (11-2) of described drill bit (11) is slidably arranged in transmission chute, connecting rod (11-2) from
It is provided with back-moving spring (3) by between end and the bottom of transmission chute；Described connecting rod (11-2) and transmission chute transversal
Face is polygon, and transmission chute coordinates with connecting rod (11-2).
Reamer for deep hole machining the most according to claim 1, it is characterised in that: described drilling rod (12)
Being set with outward guide post (2), drilling rod (12) rotates and is arranged in guide post (2), and drill bit (11) is from guide post (2)
One end stretch out, Morse taper shank (13) stretches out from the other end of guide post (2)；The diameter of described guide post (2)
Diameter less than drill bit (11)；The outer wall of described guide post (2) is provided with two or more and uniformly divides along its circumference
The chute of cloth, chute along guide post axis radially along stretching；A guidance set (4) it is equipped with in described each chute；
Described guidance set (4) includes guide pad (41) and spring (42), and guide pad (41) is slidably arranged in chute,
Spring (42) it is provided with between guide pad (41) and the bottom of chute；The free end of described guide pad (41) stretches out cunning
The end face of groove and free end exceeds the external diameter of drill bit (11).
Reamer for deep hole machining the most according to claim 2, it is characterised in that: described guide pad (41)
For ball；The mouth diameters of described chute is less than the diameter of guide pad (41), and guide pad (41) is slidably arranged in chute
In and be provided with spring (42) between guide pad (41) and the bottom of chute；Described ball stretches out the part of chute for freely
End.
4. according to the reamer for deep hole machining described in Claims 2 or 3, it is characterised in that: described guide post
(2) inwall is provided with bearing (5), and the external stator of bearing (5) is fixing with the inwall of guide post (2) to be connected, axle
Hold that the internal rotor of (5) is fixing with drilling rod (12) to be connected.
Reamer for deep hole machining the most according to claim 4, it is characterised in that: described guide post (2)
It is provided with external screw thread, external screw thread coordinates and is provided with stop nut (6)；The external diameter of described stop nut (6) is more than drill bit
(11) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510041055.1A CN105983715A (en) | 2015-01-27 | 2015-01-27 | Expanding drill for deep hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510041055.1A CN105983715A (en) | 2015-01-27 | 2015-01-27 | Expanding drill for deep hole machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105983715A true CN105983715A (en) | 2016-10-05 |
Family
ID=57036316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510041055.1A Pending CN105983715A (en) | 2015-01-27 | 2015-01-27 | Expanding drill for deep hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105983715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951734A (en) * | 2022-06-10 | 2022-08-30 | 中国航发贵州红林航空动力控制科技有限公司 | Method for realizing deep hole processing by using common lathe hole processor |
-
2015
- 2015-01-27 CN CN201510041055.1A patent/CN105983715A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951734A (en) * | 2022-06-10 | 2022-08-30 | 中国航发贵州红林航空动力控制科技有限公司 | Method for realizing deep hole processing by using common lathe hole processor |
| CN114951734B (en) * | 2022-06-10 | 2023-12-01 | 中国航发贵州红林航空动力控制科技有限公司 | Method for processing deep small holes by using common turning small hole processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |
|
| WD01 | Invention patent application deemed withdrawn after publication |