CN109317704A - Integrated tool for through-hole both ends orifice chamfer - Google Patents
Integrated tool for through-hole both ends orifice chamfer Download PDFInfo
- Publication number
- CN109317704A CN109317704A CN201811315871.7A CN201811315871A CN109317704A CN 109317704 A CN109317704 A CN 109317704A CN 201811315871 A CN201811315871 A CN 201811315871A CN 109317704 A CN109317704 A CN 109317704A
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- CN
- China
- Prior art keywords
- hole
- blade
- tool apron
- mandril
- screw
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a kind of integrated tools for through-hole both ends orifice chamfer, it includes tool apron, blade, pin shaft, mandril, spring, screw and knife handle.The tool apron is the circle straight tube that a section symmetrically prunes both sides, shaft orientation opening groove is symmetrical arranged on the tube wall of lower end, built-in knife in open slot, tool apron upper end are equipped with the internal screw thread of mounting screw and the radial through-hole through tube wall, make pin connection in the open slot of tool apron insertion knife handle.The blade is a kind of polygon plate, what blade and mandril mutually leaned on is on one side bevel edge, mandril abuts against blade upper end bevel edge with bulb end, and the planar ends of mandril upward directly support spring, and screw shoes, which screw in the inner hole of tool apron upper end, constitutes blade using pin shaft as the deflecting structure of fulcrum.The present invention realizes through-hole aperture chamfer machining on same station up and down under the premise of workpiece does not turn over.It is remarkably improved production work efficiency using the present invention, is particularly suitable for the orifice chamfer processing up and down of large-scale or heavy component through-hole.
Description
Technical field
The present invention relates to a kind of metal cutting tool, in particular it relates to a kind of cutter for orifice chamfer,
Especially it is used for the integrated tool of through-hole both ends orifice chamfer.
Background technique
Through-hole belongs to the basic structure element of machine components, and application is very extensive.When machinery manufacturing industry processes through-hole, for
Via-first of the aperture greater than Φ 40mm cuts technique using turning or ward off and realizes forming, counterbore of the aperture less than Φ 40mm or
Through-hole then has preferred drilling to shape.It is found that drilling processing technology is relatively easy from " metal cutting technology ", cutting
It is high-efficient, but machining accuracy is relatively low, and the through-hole both ends aperture of especially drilling is right-angle side, or even has overlap.In order to just
In installation auxiliary equipment, usually to make both ends aperture chamfer machining.For the workpiece of aperture upward, the industry generallys use the ratio that changes the outfit
The big drill bit in aperture or countersink implement chamfer machining.For the orifice chamfer at the through-hole back side, can turn around to realize by workpiece has
Imitate chamfer machining.But some large-scale workpieces or structure is complicated workpiece, it is inconvenient because turning over, cause these to be in the hole at the through-hole back side
Mouth cannot achieve chamfer machining.
Summary of the invention
Present invention is generally directed to the technical problem of through-hole back ports chamfering hardly possible, propose that a kind of through-hole both ends aperture that is used for is fallen
The integrated tool at angle, the cutter structure is simple, is easy to make, is easy to use, under the premise of workpiece is motionless, synchronously completes hole
Mouth front and back sides chamfer machining.
The present invention is achieved through the following technical solutions technical goal.
For the integrated tool of through-hole both ends orifice chamfer, it includes tool apron, blade, pin shaft, mandril, spring, screw
And knife handle.The knife handle is straight rod member, it is coaxially made of the shank of upper semisection and the shaft part of lower semisection, and shaft part is equipped with axial
Open slot.It is theed improvement is that: the tool apron is the circle straight tube that a section symmetrically prunes both sides, is symmetrical arranged axis on the tube wall of lower end
To open slot, upper end is equipped with the internal screw thread of mounting screw and the radial through-hole through tube wall, and tool apron is inserted into the open slot of knife handle,
Tool apron and knife handle make pin connection by radial through-hole.The blade is a kind of polygon plate, and the knife portion with cutting edge is in one
Evagination trapezoidal shape is saved, there is the notch of one with pin shaft cooperation on the upside of the knife portion, what blade and mandril mutually leaned on is bevel edge on one side.Institute
Stating mandril is a pitch circle axis of a cylinder, and the mandril being placed in tool apron inner hole abuts against blade upper end bevel edge, mandril with bulb end directed downwardly
Planar ends upward directly support spring.The screw is the fastener of Flat-head internal hexagonal structure, and screw screws in tool apron upper end
Kong Zhong adjusts screw and constitutes by spring promotion mandril axial displacement, i.e. composition blade is using the pin shaft biased as the beat knot of fulcrum
Structure.
As the scheme of further improvement, symmetrically arranged open slot is that wide axial direction is straight on the tool apron lower semisection tube wall
Slot, groove width are equal to the thickness of blade.
As the scheme of further improvement, the trapezoidal knife portion two sides of the blade are 30 °~60 ° bevel edges.
As the scheme of further improvement, the tool apron outer diameter is equal to workpiece through-hole internal diameter.
Compared with prior art, the present invention having the positive effect that:
1, blade swingable built in tool apron, structure is simple, be easy to make, be easy to use, processing quality is good；
2, the knife portion of blade is in a section trapezoidal shape, and chamfering of the bevel edge directed downwardly for workpiece through-hole aperture upward, top aperture adds
Work finishes, then suspends rotary cutting, be displaced cutter directly down, forces in blade retraction tool apron, then further moves down cutter,
The knife portion of blade to be configured surmounts workpiece through-hole aperture directed downwardly, pushes the knife portion of blade from tool apron China and foreign countries under the action of the spring
Dew, again rotation and on griffe tool can using upward bevel edge to through-hole downward orifice chamfer process.It is not required to using the tool
The location of workpiece is turned, can both realize the chamfer machining to aperture above and below through-hole.
Detailed description of the invention
Fig. 1 is structure of the invention front schematic view.
Fig. 2 is the side schematic view of Fig. 1.
Fig. 3 is tool-apron structure diagrammatic cross-section in Fig. 1.
Fig. 4 is the side structure schematic diagram of Fig. 3.
Fig. 5 is the blade plane structural schematic diagram in Fig. 3.
Specific embodiment
Below according to attached drawing and in conjunction with the embodiments, the invention will be further described.
Cutter shown in FIG. 1 is the integrated tool for through-hole both ends orifice chamfer, it includes tool apron 1, blade 2, pin
Axis 3, mandril 4, spring 5, screw 6 and knife handle 7.The knife handle 7 is the connector of cutter and drilling machine, and this straight rod member is by upper half
The shank and lower semisection casing of section coaxially form, and shaft part is equipped with shaft orientation opening groove.The tool apron 1 is that a section symmetrically prunes both sides
Justify straight tube, shaft orientation opening groove 1.2 is symmetrical arranged on the tube wall of lower end, upper end is equipped with the internal screw thread of mounting screw 6 and through tube wall
Radial through-hole 1.1, tool apron 1 are inserted into the open slot of knife handle 7, and tool apron 1 makees pin connection by radial through-hole 1.1 with knife handle 7.This reality
Applying a workpiece is petroleum pipeline four-way flange, and uniformly distributed 12 through-holes on end face, through-hole internal diameter is Φ 22mm, it is desirable that through-hole both ends of the hole
2 × 45 ° of chamfering of mouth.Therefore 1 outer diameter of tool apron of adapted is Φ 22mm, symmetrically arranged 1.2 width of shaft orientation opening groove on 1 tube wall of tool apron
Equal with 2 thickness of blade of configuration, 2 thickness of blade of the present embodiment application is 2.5mm.The blade 2 is a kind of polygon plate,
Knife portion with cutting edge is in a section evagination trapezoidal shape, and the trapezoidal knife portion two sides of the blade 2 in the present embodiment are 45 ° oblique
Side.It is equipped with the notch cooperated with pin shaft 3 positioned at knife portion, what blade 2 and 4 phase of mandril were leaned on is bevel edge on one side.The mandril 4
For a pitch circle axis of a cylinder, the mandril 4 being placed in 1 inner hole of tool apron abuts against 2 upper end bevel edge of blade, 4 court of mandril with bulb end directed downwardly
On planar ends directly support spring 5.The screw 6 is Flat-head internal hexagonal fastener, and screw 6 screws in 1 upper end inner hole of tool apron,
It adjusts screw 6 to constitute by promotion 4 axial displacement of mandril of spring 5, i.e. composition blade 2 is the beat knot of fulcrum with the pin shaft 3 of biasing
Structure.
Chamfering of the 2 directed downwardly 45 ° of bevel edges of blade for workpiece through-hole aperture upward in above structure, top aperture processes
Finish, then suspends rotary cutting, be displaced cutter directly down, force blade 2 to be retracted into tool apron 1, then further move down tool apron
1, the knife portion of blade 2 to be configured surmounts workpiece through-hole aperture directed downwardly, pushes the knife portion of blade 2 from knife under the action of spring 5
Seat 1 in it is exposed, again rotation and on griffe tool can implement to workpiece through-hole downward orifice chamfer process.
The present invention is under the premise of workpiece is not required to turn over, it can be achieved that aperture chamfer machining on same station above and below through-hole.
This technical pattern is simple, using being easy, and is remarkably improved production work efficiency, is particularly suitable for lower opening on large-scale or heavy component through-hole
Mouth chamfer machining.
Claims (4)
1. a kind of integrated tool for through-hole both ends orifice chamfer, it includes tool apron (1), blade (2), pin shaft (3), mandril
(4), spring (5), screw (6) and knife handle (7)；The knife handle (7) is straight rod member, it is by the shank and lower half positioned at upper semisection
The shaft part of section coaxially forms, and shaft part is equipped with shaft orientation opening groove；It is characterized by: the tool apron (1) is that a section symmetrically prunes both sides
Circle straight tube, be symmetrical arranged shaft orientation opening groove (1.2) on the tube wall of lower end, upper end is equipped with the internal screw thread of mounting screw (6) and runs through
The radial through-hole (1.1) of tube wall, tool apron (1) are inserted into the open slot of knife handle (1), and tool apron (1) and knife handle (7) are by radial through-hole
(1.1) make pin connection；The blade (2) is a kind of polygon plate, and the knife portion with cutting edge is in a section evagination trapezoidal shape, position
There are the notch of one with pin shaft (3) cooperation on the upside of the knife portion, what blade (2) and mandril (4) mutually leaned on is bevel edge on one side；The mandril
It (4) is a pitch circle axis of a cylinder, it is oblique that the mandril (4) being placed in tool apron (1) inner hole with bulb end directed downwardly abuts against blade (2) upper end
Side, the planar ends of mandril (4) upward directly support spring (5)；The screw (6) is the fastener of Flat-head internal hexagonal structure, spiral shell
It follows closely (6) to screw in the inner hole of tool apron (1) upper end, adjusts screw (6) and constitute by spring (5) promotion mandril (4) axial displacement, that is, constitute
Blade (2) is the deflecting structure of fulcrum with the pin shaft (3) of biasing.
2. the integrated tool according to claim 1 for through-hole both ends orifice chamfer, it is characterised in that: the tool apron
(1) symmetrically arranged open slot (1.2) is wide axial straight trough on lower semisection tube wall, and groove width is equal to the thickness of blade (2).
3. the integrated tool according to claim 1 for through-hole both ends orifice chamfer, it is characterised in that: the blade
(2) trapezoidal knife portion two sides are 30 °~60 ° bevel edges.
4. the integrated tool according to claim 1 for through-hole both ends orifice chamfer, it is characterised in that: the tool apron
(1) outer diameter is equal to workpiece through-hole internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315871.7A CN109317704A (en) | 2018-11-07 | 2018-11-07 | Integrated tool for through-hole both ends orifice chamfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315871.7A CN109317704A (en) | 2018-11-07 | 2018-11-07 | Integrated tool for through-hole both ends orifice chamfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109317704A true CN109317704A (en) | 2019-02-12 |
Family
ID=65259430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811315871.7A Withdrawn CN109317704A (en) | 2018-11-07 | 2018-11-07 | Integrated tool for through-hole both ends orifice chamfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109317704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401482A (en) * | 2021-05-29 | 2022-11-29 | 沈阳富创精密设备股份有限公司 | Machining device for anti-countersunk head type parts |
-
2018
- 2018-11-07 CN CN201811315871.7A patent/CN109317704A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401482A (en) * | 2021-05-29 | 2022-11-29 | 沈阳富创精密设备股份有限公司 | Machining device for anti-countersunk head type parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190212 |