CN202114324U - Countersinking tool for machining of reverse end faces of holes - Google Patents
Countersinking tool for machining of reverse end faces of holes Download PDFInfo
- Publication number
- CN202114324U CN202114324U CN2011201915300U CN201120191530U CN202114324U CN 202114324 U CN202114324 U CN 202114324U CN 2011201915300 U CN2011201915300 U CN 2011201915300U CN 201120191530 U CN201120191530 U CN 201120191530U CN 202114324 U CN202114324 U CN 202114324U
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- tool
- cutter head
- knife bar
- cutter
- hole
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Abstract
The utility model relates to a hole machining tool, in particular to a countersinking tool for machining of reverse end faces of holes, which comprises a tool bit and a tool bar. The tool bar includes a cutting portion, a tool bar neck, a tool bar handle and a taper shank sequentially from front to rear, two arc faces are arranged on the cutting portion at positions close to inside, four cutting edges are arranged on the tool bit and distributed evenly and peripherally, and flared flutes which are narrow in front and wide in rear and inclined to outside are staggered on rear tool faces of the cutting edges of the tool bit. Turning directions of the cutting edges of the tool bit are the same as the turning direction of a machine tool spindle. When elongated holes on the tool bit are aligned with the arc faces of the tool bar, the tool bit can be hung on the tool bar by rotating the tool bit anticlockwise or rotating the spindle reversely. The spindle can rotate positively to retract, and reverse countersinking of end faces of holes can be ready. The countersinking tool four machining of revers end faces of holes is convenient and quick in clamping, reliable in mounting, fine in tool strength and long in service life, and machining efficiency is improved.
Description
Technical field
The utility model relates to aperture knife tool in a kind of machine-building, especially relates to a kind of processing reverse side hole end surface with drawing the nest cutter.
Background technology
The processing of reverse side hole end surface often runs in actual production.Usually use the plane countersink to process or on knife bar, process with single face forming tool clamping.But the pts wt that has is heavy, and volume is big, and staggered reinforcement and the pitch-row hole inner side end from the nearly part of sidewall is arranged, and is difficult to said method processing, can only adopt to be clipped on the knife bar the single face forming-tool is on chip, oppositely draws the processing mode of face.Because the Tool in Cutting inclement condition often is in the state of interrupted cut, so often forge a knife; The hole end surface diameter and the through-hole diameter that are used to process differ bigger, and single face shaping blade cantilever extension elongation is too big, and is not steady during cutting, are prone to the shake cutter, and the cutter clamping is long non-cutting time, and the cutter extension elongation needs adjustment, cause cutter life short.
The utility model content
The utility model technical problem to be solved is: provide a kind of stable cutting, convenient mounting and clamping, intensity is good, the life-span is long, production efficiency is high processing reverse side hole end surface with drawing a nest cutter.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is:
A kind of processing reverse side hole end surface is with drawing the nest cutter, and it comprises cutter head 1 and knife bar 2, and knife bar 2 is followed successively by cutting tip 3, knife bar neck 4, holder 5 and taper shank 6 in the past backward; Cutting tip 3 processes two transition circle cambered surfaces near the inboard, and the cross section of cutting tip 3 and knife bar neck 4 is rectangular hole shape, and the cross section of holder 5 is circular; The cross-sectional length of knife bar neck 4 is less than the cross-sectional length of cutting tip 3 and the cross section circular diameter of holder 5, and the front end of cutting tip 3 is installed cutter head 1, and cutter head 1 comprises blade and cutter hub; Cutter head 1 middle part is provided with installing hole, divides two parts, and the edge blade side is a circular hole; Opposite side is a strip hole, and taper shank 6 is connected with machine tool chief axis.
According to such scheme, described cutter head 1 inner face is provided with the cutting edge 7 that four circumference in equal parts distribute.
According to such scheme, beloid circular horn shape, the outward-dipping chip area 8 of being is interspersed on the cutting edge of the described cutter head 17 back knife faces.
The operation principle of the utility model is that elder generation is installed in knife bar on the machine tool chief axis, knife bar is passed the hole or the tool locating hole of having bored on the workpiece; The cutting end of cutter head is made progress, be enclosed within the knife bar front end from the below, the cutting edge rotation direction of cutter head is consistent with the machine tool chief axis rotation direction; When the strip hole of cutter head aligns with the cutting tip arc surface of knife bar; Another mistake hour hands rotation blade or main shaft counter-rotating, cutter head just hangs on the knife bar like this, and main shaft just changes; Receive short main shaft, the processing that just can oppositely draw hole end surface.After a reverse stroke hole end surface machines, cutter head is rotated from knife bar, withdraws from, knife bar is mentioned, withdraw from the hole or the tool locating hole of having bored.
The beneficial effect of the utility model is:
1, this processing reverse side hole end surface is quick, safe and reliable with drawing nest cutter convenient mounting and clamping, and stable cutting, intensity be good, enhance productivity.
2, this processing reverse side hole end surface has chip area with drawing the nest cutter, and chip area forms through polishing grinding, and stream bits speed is good, and speed is steady when making cutting, and precision is high, is not prone to the phenomenon of forging a knife, and has prolonged cutter life.
Description of drawings
Fig. 1 is the cutter head sketch map;
Fig. 2 is that the A of cutter head shown in Figure 1 is to view;
Fig. 3 is the knife bar sketch map;
Fig. 4 is the structural representation of the utility model.
Wherein, 1-cutter head, 2-knife bar, 3-cutting tip, 4-knife bar neck, 5-holder, 6-taper shank, 7-cutting edge, 8-chip area.
The specific embodiment
Further specify the embodiment of the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1-4, this specific embodiment is that a kind of processing reverse side hole end surface is used a stroke nest cutter, and it comprises cutter head 1 and knife bar 2; Knife bar 2 is followed successively by cutting tip 3, knife bar neck 4, holder 5 and taper shank 6 in the past backward, and cutting tip 3 processes two transition circle cambered surfaces near the inboard, and the cross section of cutting tip 3 and knife bar neck 4 is rectangular hole shape; The cross section of holder 5 is circular, and the cross-sectional length of knife bar neck 4 is less than the cross-sectional length of cutting tip 3 and the cross section circular diameter of holder 5, and the front end of cutting tip 3 is installed cutter head 1; Cutter head 1 comprises blade and cutter hub; Cutter head 1 middle part is provided with installing hole, divides two parts, and the edge blade side is a circular hole; Opposite side is a strip hole, and taper shank 6 is connected with machine tool chief axis.
Described cutter head 1 inner face of this specific embodiment is provided with the cutting edge 7 that four circumference in equal parts distribute.
Beloid circular horn shape, the outward-dipping chip area 8 of being is interspersed on the cutting edge 7 back knife faces of the described cutter head 1 of this specific embodiment.
The operation principle of this specific embodiment is that elder generation is installed in knife bar on the machine tool chief axis, knife bar is passed the hole or the tool locating hole of having bored on the workpiece; The cutting end of cutter head is made progress, be enclosed within the knife bar front end from the below, the cutting edge rotation direction of cutter head is consistent with the machine tool chief axis rotation direction; When the strip hole of cutter head aligns with the cutting tip arc surface of knife bar; Another mistake hour hands rotation blade or main shaft counter-rotating, cutter head just hangs on the knife bar like this, and main shaft just changes; Receive short main shaft, the processing that just can oppositely draw hole end surface.After a reverse stroke hole end surface machines, cutter head is rotated from knife bar, withdraws from, knife bar is mentioned, withdraw from the hole or the tool locating hole of having bored.
The beneficial effect of this specific embodiment is:
1, this processing reverse side hole end surface is quick, safe and reliable with drawing nest cutter convenient mounting and clamping, and stable cutting, intensity be good, enhance productivity.
2, this processing reverse side hole end surface has chip area with drawing the nest cutter, and chip area forms through polishing grinding, and stream bits speed is good, and speed is steady when making cutting, and precision is high, is not prone to the phenomenon of forging a knife, and has prolonged cutter life.
Claims (3)
1. a processing reverse side hole end surface comprises cutter head (1) and knife bar (2) with drawing the nest cutter, and it is characterized in that: knife bar (2) is followed successively by cutting tip (3), knife bar neck (4), holder (5) and taper shank (6) in the past backward; Cutting tip (3) processes two arc surfaces near the inboard, and the cross section of cutting tip (3) and knife bar neck (4) is rectangular hole shape, and the cross section of holder (5) is circular; The cross-sectional length of knife bar neck (4) is less than the cross-sectional length of cutting tip (3) and the cross section circular diameter of holder (5); The front end of cutting tip (3) is installed cutter head (1), and cutter head (1) comprises blade and cutter hub, and cutter head (1) middle part is provided with installing hole; Divide two parts; The edge blade side is a circular hole, and opposite side is a strip hole, and taper shank (6) is connected with machine tool chief axis.
2. processing reverse side hole end surface according to claim 1 is characterized in that with drawing the nest cutter: described cutter head (1) inner face is provided with the cutting edge (7) that four circumference in equal parts distribute.
3. processing reverse side hole end surface according to claim 2 is characterized in that with drawing a nest cutter: beloid circular horn shape, the outward-dipping chip area (8) of being is interspersed on cutting edge (7) the back knife face of described cutter head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201915300U CN202114324U (en) | 2011-05-26 | 2011-05-26 | Countersinking tool for machining of reverse end faces of holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201915300U CN202114324U (en) | 2011-05-26 | 2011-05-26 | Countersinking tool for machining of reverse end faces of holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114324U true CN202114324U (en) | 2012-01-18 |
Family
ID=45455422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201915300U Expired - Lifetime CN202114324U (en) | 2011-05-26 | 2011-05-26 | Countersinking tool for machining of reverse end faces of holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506678A (en) * | 2013-10-10 | 2014-01-15 | 无锡蠡湖叶轮制造有限公司 | Reverse milling cutter |
-
2011
- 2011-05-26 CN CN2011201915300U patent/CN202114324U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506678A (en) * | 2013-10-10 | 2014-01-15 | 无锡蠡湖叶轮制造有限公司 | Reverse milling cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |