CN203541643U - Forming spot-facing drill - Google Patents
Forming spot-facing drill Download PDFInfo
- Publication number
- CN203541643U CN203541643U CN201320690048.0U CN201320690048U CN203541643U CN 203541643 U CN203541643 U CN 203541643U CN 201320690048 U CN201320690048 U CN 201320690048U CN 203541643 U CN203541643 U CN 203541643U
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- Prior art keywords
- plane
- spot
- cutter portion
- blade
- facer
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- Expired - Fee Related
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Abstract
The utility model discloses a forming spot-facing drill. The forming spot-facing drill comprises a handle part, a cutter bar and a cutter part. The cutter part comprises an outer blade, a middle blade and an inner blade which are arranged in sequence in the direction far away from the handle part. The radial sizes of the outer blade, the middle blade and the inner blade become smaller in sequence. Chamfers are arranged between the outer blade and the middle blade and between the middle blade and the inner blade. Each chamfer comprises an outer bevel and an inner bevel which are arranged in an intersecting mode, wherein the included angle between the outer bevel and the axial direction of the cutter part is larger than the included angle between the inner bevel and the axial direction of the cutter part. The forming spot-facing drill has the advantages of being high in adaptability and machining efficiency.
Description
Technical field
The utility model belongs to field of machining, a kind of moulding spot-facer particularly.
Background technology
Moulding spot-facer is a kind of cutter of the shape such as processing column shape counter sink, taper counter sink and boss section on hole, and its processing object is in order to guarantee the perpendicularity of aperture and centerline hole, so that the part position being connected with hole is correct, connection reliably.Spot-facer divides three kinds of cylindricality counterbits, countersink, end face counterbit, accordingly processing column shape counter sink, taper counter sink and boss section.Existing common spot-facer major part is generally comprised of lead and blade, its knife edge part has unique size, hole that only can match machined phase same size, its use occasion is more single, adaptability is not high, and while carrying out spot-facing for special stepped bore, need to change the different cutters of secondary and just can complete processing tasks, process is cumbersome, and efficiency is not high.
Utility model content
The purpose of this utility model is to provide moulding spot-facer, and it has strong adaptability, the advantage that working (machining) efficiency is high.
To achieve these goals, the technical solution adopted in the utility model is as follows: a kind of moulding spot-facer, comprise shank, knife bar and cutter portion, it is characterized in that, described cutter portion comprises along the outside, middle sword and the inner edge that are arranged in order away from shank direction, the radial dimension of described outside, middle sword and inner edge reduces successively, and there is chamfering between described outside, middle sword and inner edge, described chamfering comprises Ji Nei inclined-plane, outer inclined-plane arranged in a crossed manner, and the axial angle of described outer inclined-plane and cutter portion is greater than the axial angle in described interior inclined-plane and cutter portion.
Preferably, described outer inclined-plane is greater than described interior inclined-plane along the height of cutter portion axis projection along the height of cutter portion axis projection.
Preferably, the outer face of described inner edge has the guiding sword of inclined plane shape.
Preferably, described cutter portion comprises the blade of four circle distribution, and the blade that is wherein positioned at relative position shifts to install diametrically.
Preferably, in described four blades, between two adjacent blades, be provided with chip area.
Preferably, described chip area comprises the straight trough portion being positioned in cutter portion and is positioned at the arc slot part on knife bar.
Compared with prior art, moulding spot-facer of the present utility model, by cutter portion is designed to comprise outside, the blade of middle sword and three kinds of different radial dimensions of inner edge, and press size successively with arranged in step shape, the chamfering that comprises He Nei inclined-plane, outer inclined-plane is set between three blades, the gradient on outer inclined-plane is greater than the gradient on interior inclined-plane, can arbitrarily make so arbitrary one in three kinds of blades to carry out spot-facing processing, for example, when using outside spot-facing, chamfering and middle sword replace lead in conventional spot-facer to play guide effect, and in using during sword spot-facing, chamfering and inner edge replace lead in conventional spot-facer to play guide effect, therefore three kinds of blades of the present utility model can carry out spot-facing processing to the hole of three kinds of different sizes, do not need to change cutter, can realize cutter three use, especially, add man-hour shoulder hole is carried out to spot-facing, three kinds of blades on spot-facer of the present utility model can carry out spot-facing processing by disposable each end face to shoulder hole, greatly improve process velocity and efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A place enlarged drawing in Fig. 1;
Fig. 3 is the left view of Fig. 1.
In figure:
10, shank; 20, knife bar; 30, cutter portion;
31, outside; 32, middle sword; 33, inner edge;
40, chamfering; 41, outer inclined-plane; 42, interior inclined-plane;
50, guiding sword; 60, chip area; 61, straight trough portion;
62, arc slot part; 70, blade.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the technical solution of the utility model is described.
As shown in Figure 1, the utility model is a kind of moulding spot-facer, comprise shank 10, knife bar 20 and cutter portion 30, described cutter portion 30 comprises along the outside 31, middle sword 32 and the inner edge 33 that are arranged in order away from shank 10 directions, the radial dimension of described outside 31, middle sword 32 and inner edge 33 reduces successively, and there is chamfering 40 between described outside 31, middle sword 32 and inner edge 33, described chamfering 40 comprises 41Ji Nei inclined-plane, outer inclined-plane 42 arranged in a crossed manner, and the axial angle of described outer inclined-plane 41 and cutter portion 30 is greater than described interior inclined-plane 42 angle axial with cutter portion 30.Moulding spot-facer of the present utility model, by cutter portion 30 is designed to comprise outside 31, the blade of middle sword 32 and 33 3 kinds of different radial dimensions of inner edge, and press size successively with arranged in step shape, the chamfering 40 that comprises 41He Nei inclined-plane, outer inclined-plane 42 is set between three blades, the gradient on outer inclined-plane 41 is greater than the gradient on interior inclined-plane 42, can arbitrarily make so arbitrary one in three kinds of blades to carry out spot-facing processing, for example, when using outside 31 spot-facing, lead in chamfering 40 and the conventional spot-facer of middle sword 32 replacement is to play guide effect, and in using during sword 32 spot-facing, lead in chamfering 40 and the conventional spot-facer of inner edge 33 replacement is to play guide effect, therefore three kinds of blades of the present utility model can carry out spot-facing processing to the hole of three kinds of different sizes, do not need to change cutter, can realize cutter three use, especially, add man-hour shoulder hole is carried out to spot-facing, three kinds of blades on spot-facer of the present utility model can carry out spot-facing processing by disposable each end face to shoulder hole, greatly improve process velocity and efficiency.
Add man-hour carrying out spot-facing, in order to make chamfering 40 play better guide effect, described outer inclined-plane 41 is greater than described interior inclined-plane 42 along the height of cutter portion 30 axis projections along the height of cutter portion 30 axis projections, interior inclined-plane 42 can be snapped in hole relatively easily, its guiding is more accurate, and outer inclined-plane 41 still can fit in hole end surface.
When using inner edge 33 to carry out spot-facing, add man-hour, because inner edge 33 end faces have not arranged separately the parts of guide function, therefore the outer face of described inner edge 33 has the guiding sword 50 of inclined plane shape, replaces guiding parts, thereby can make the precision of inner edge 33 spot-facings be improved with the sword 50 that leads.
In order to improve spot-facing efficiency, described cutter portion 30 comprises the blade 70 of four circle distribution, and the blade that is wherein positioned at relative position shifts to install diametrically, four blades 70 carry out spot-facing processing to hole inwall simultaneously, process velocity is faster, known, outside 31, middle sword 32 and inner edge 33 include above-mentioned blade 70, and the structural configuration arranging is also identical.
In addition, in order to make metal fillings more easily and to discharge quickly, in described four blades 70, between two adjacent blades 70, be provided with chip area 60, metal fillings discharged, preferably along shank 10 opening parts of chip area 60, described chip area 60 comprises the straight trough portion 61 being positioned in cutter portion 30 and is positioned at the arc slot part 62 on knife bar 20, straight trough portion 61 can hold more metal fillings, and arc slot part 62 can guide wire the movement of bits, can more easily discharge.
Moulding spot-facer of the present utility model, has strong adaptability, the advantage that working (machining) efficiency is high.
The above is only better embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (6)
1. a moulding spot-facer, comprise shank (10), knife bar (20) and cutter portion (30), it is characterized in that, described cutter portion (30) comprises along the outside (31) being arranged in order away from shank (10) direction, middle sword (32) and inner edge (33), described outside (31), the radial dimension of middle sword (32) and inner edge (33) reduces successively, and described outside (31), between middle sword (32) and inner edge (33), there is chamfering (40), described chamfering (40) comprises outer inclined-plane (41) arranged in a crossed manner and interior inclined-plane (42), the axial angle of described outer inclined-plane (41) and cutter portion (30) is greater than described interior inclined-plane (42) angle axial with cutter portion (30).
2. moulding spot-facer according to claim 1, is characterized in that, described outer inclined-plane (41) is greater than described interior inclined-plane (42) along the height of cutter portion (30) axis projection along the height of cutter portion (30) axis projection.
3. moulding spot-facer according to claim 1, is characterized in that, the outer face of described inner edge (33) has the guiding sword (50) of inclined plane shape.
4. according to the moulding spot-facer described in claim 2 or 3, it is characterized in that, described cutter portion (30) comprises the blade (70) of four circle distribution, and the blade (70) that is wherein positioned at relative position shifts to install diametrically.
5. moulding spot-facer according to claim 4, is characterized in that, in described four blades (70), between adjacent two blades (70), is provided with chip area (60).
6. moulding spot-facer according to claim 5, is characterized in that, described chip area (60) comprises the straight trough portion (61) being positioned in cutter portion and is positioned at the arc slot part (62) on knife bar (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690048.0U CN203541643U (en) | 2013-11-01 | 2013-11-01 | Forming spot-facing drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690048.0U CN203541643U (en) | 2013-11-01 | 2013-11-01 | Forming spot-facing drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541643U true CN203541643U (en) | 2014-04-16 |
Family
ID=50459812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320690048.0U Expired - Fee Related CN203541643U (en) | 2013-11-01 | 2013-11-01 | Forming spot-facing drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203541643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586509A (en) * | 2013-11-01 | 2014-02-19 | 无锡雨田精密工具有限公司 | Forming spot-facer |
-
2013
- 2013-11-01 CN CN201320690048.0U patent/CN203541643U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586509A (en) * | 2013-11-01 | 2014-02-19 | 无锡雨田精密工具有限公司 | Forming spot-facer |
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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: 20140416 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |