CN202106079U - Modified structure of detachable chamfer cutter - Google Patents
Modified structure of detachable chamfer cutter Download PDFInfo
- Publication number
- CN202106079U CN202106079U CN2011201514860U CN201120151486U CN202106079U CN 202106079 U CN202106079 U CN 202106079U CN 2011201514860 U CN2011201514860 U CN 2011201514860U CN 201120151486 U CN201120151486 U CN 201120151486U CN 202106079 U CN202106079 U CN 202106079U
- Authority
- CN
- China
- Prior art keywords
- slot
- cutter head
- handle
- cutter
- knife
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a modified structure of a detachable chamfer cutter, which comprises a cutter handle and a cutter head. One end of the cutter handle is provided with a slot, an opening of the slot faces outward, and the peripheral side of the inserting end of the cutter handle is provided with a fastening hole which is communicated to the slot. One end of the cutter head is provided with a cutting portion, and the other end of the cutter head is provided with an insertion portion which can be correspondingly inserted in the slot. The cutter head is inserted in the slot of the cutter handle through the insertion portion, penetrates through and extends out of the fastening hole through a fastener to butt against the insertion portion of the cutter head. The slot sequentially forms a tapering section and a straight section from the opening to the direction of the cutter handle, and the insertion portion of the cutter head forms a conical section and a cylindrical section corresponding to the tapering section and the straight section of the slot. The modified structure of the detachable chamfer cutter has the advantages that the cutter handle slot is provided with a limiting structure so that the cutter handle and the cutter head can rotate coaxially and the structure can be more stable and are not easy to be damaged. The modified structure is clamped in a cutter head groove through the fastener so that the cutter head is prevented from falling off from the cutter handle, and accordingly the modified structure is safer.
Description
Technical field
The utility model relates to a kind of rose reamer, refers to the dismountable rose reamer that a kind of Stability Analysis of Structures is safe especially.
Background technology
At present; Existing dismountable rose reamer is as shown in Figure 5; It includes a cutter head 8 and a handle of a knife 7, and wherein these cutter head 8 one ends have a cutting part 81, and the other end is provided with one and plugs portion 82; And plugging portion 82 with this, this cutter head 8 is inserted in the set slot 71 of these handle of a knife 7 one ends; And this handle of a knife 7 is provided with the locking hole 72 that always passes to this slot 71 in the peripheral side wall of contiguous this slot 71, can prop up the portion that plugs 82 of this cutter head 8 for a locking part 9 stretched through this locking hole 72, and by this this cutter head 8 is positioned in this slot 71.
But; Existing rose reamer is after using a period of time; Because the vibrations when using and this locking part 9 and this cutter head 8 plug the frictional dissipation of 82 in portion, then getting loose of this locking part 9 can be caused and this cutter head 8 can't be closely fix, this cutter head 8 is understood generation and is rocked when being prone to cause using in this slot 71; Be a plane 83 because of this cutter head 8 with the face that this handle of a knife 7 joins again; And can be inserted in cutter head 8 in this slot 71 not limitedly in the situation of laterally rocking, and make that this handle of a knife 7 and this cutter head 8 can't coaxial rotation, can cause the precise decreasing of cutting operation.Moreover; The resistance face that this locking part 9 and this cutter head 8 plug 82 in portion is the plane; After so this locking part 9 gets loose; This cutter head 8 promptly breaks away from this slot 71 because of the structure of no block easily, if in the operating environment of high speed rotating the situation that cutter head 8 comes off takes place down, just causes danger easily and causes injury to personnel.
The utility model content
The purpose of the utility model is to improve the deficiency of prior art, and the structure-improved of the safe dismountable rose reamer of a kind of Stability Analysis of Structures is provided.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of structure-improved of dismountable rose reamer, it includes:
One handle of a knife has one in an end wherein and plugs end, and this plugs to hold and is provided with one in end face and has opening slot outwardly, and plugs the end outer circumferential side in this and be provided with the locking hole that always passes to this slot;
One cutter head, the one of which end is provided with a cutting part, but the other end then is provided with the plug portion of a corresponding inserted in this slot, and this cutter head is inserted in the slot of this handle of a knife with this portion of plugging, and stretches through this locking hole with a locking part and prop up the portion that plugs of this cutter head;
This slot is formed with a converging transition and a flat segments from this opening towards this handle of a knife direction in regular turn, and the portion of plugging of this cutter head is then to converging transition that should slot and flat segments and be formed with a conical section and a cylindrical portion.
The place more is concaved with a degree of depth towards the cumulative groove of said conical section in the corresponding said locking hole of the cylindrical portion outer circumferential side of said cutter head, and stretched through this locking hole and stretch into this groove and prop up the cylindrical portion of this cutter head of this locking part.
The bottom surface of said groove is an inclined-plane.
The external diameter of said slot opening plugs the external diameter of end end face less than said handle of a knife.
The beneficial effect of the utility model is: the handle of a knife slot has position limiting structure, thereby avoids handle of a knife and the cutter head can't coaxial rotation, and it is survivable that structure is more stablized; Be arranged in the cutter head groove through locking part, avoid cutter head to come off, thereby have more security from handle of a knife.
Description of drawings
Fig. 1 is the perspective exploded view of the utility model.
Fig. 2 is the solid combination sketch map of the utility model.
Fig. 3 is the cut-away section sketch map of the utility model.
Fig. 4 is get loose a little generalized section of state of locking part in the utility model.
Fig. 5 is the generalized section of existing dismountable rose reamer.
The specific embodiment
See also Fig. 1 to Fig. 3, be the structure-improved of a kind of dismountable rose reamer that the utility model provided, it includes:
One handle of a knife 1; Have one in an end wherein and plug end 11; This plugs end 11 and is provided with one in end face and has an opening 12 slot 13 outwardly; And this slot 13 is formed with a converging transition 131 and a flat segments 132 from this opening 12 towards this handle of a knife 1 direction in regular turn, and in this plug the end 11 outer circumferential sides be provided with the locking hole 14 that always passes to these slot 13 flat segments 132.
One cutter head 2; The one of which end is provided with a cutting part 21; But the other end then is provided with the plug portion 22 of a corresponding inserted in this slot 13; And this plugs converging transition 131 that 22 pairs in portion should slot 13 and flat segments 132 and is formed with a conical section 221 and a cylindrical portion 222; And be located in the mode of these slot 13 converging transitions 131 with flat segments 132 and this conical section 221 that this cylindrical portion 222 is inserted in this slot 13, and this cutter head 2 is inserted in the slot 13 of this handle of a knife 1, again this cylindrical portion 222 in outer circumferential side to should locking hole 14 places being concaved with a degree of depth towards the cumulative groove 23 of this conical section 221; And stretch into this groove 23 to resist the portion that plugs 22 in this cutter head 2 through a locking part 3 this locking hole 14 that stretched through, by this this cutter head 2 is positioned in the slot 13 of this handle of a knife 1.
The utility model of forming by above-mentioned member is after using a period of time; Please consult as shown in Figure 4 earlier; The frictional dissipation that vibrations during because of use and this locking part 3 and this groove are 23; This locking part 3 has the situation that gets loose a little; Though these cutter head 2 cylindrical portion 222 can't close positioning in the flat segments 132 of this slot 13, because the conical section 221 of this cutter head 2 is located in the converging transition 131 of this slot 13, therefore in process; This cutter head 2 makes this cutter head 2 be formed with a reaction force acts and holds 11 in plugging of this handle of a knife 1 because of exerting pressure towards workpiece; And can make this converging transition 131 that spacing effect can be provided the conical section 221 of this cutter head 2 so that this cutter head 2 still can be limited under the state that gets loose a little in the slot 13 of this handle of a knife 1 in this locking part 3, and can not cause this cutter head 2 and this handle of a knife 1 produce can't coaxial rotation situation.
Moreover; Opening 12 external diameters of this handle of a knife 1 slot 13 are slightly smaller than the external diameter that this handle of a knife 1 plugs end 11 end faces; And make by this this plug the end 11 end faces outside this opening 12, be formed with one first compression face 16; The lateral margin of these slot 13 converging transitions 131 is one second compression face 15 again, and the utility model is when carrying out cutting operation, plugs end 11 so that this cutter head 2 is formed with a reaction force acts in this handle of a knife 1 because of forcing in that this cutter head 2 props up workpiece; This reaction force is to be born by this first compression face 16 and this second compression face 15, and the strength F that acts on this second compression face 15 can be decomposed into the axial component F of this slot 13 on mechanics
1And radially outer component F
2, the power N that acts on this first compression face 16 again can plug in this and produce one on end 11 and be parallel to the frictional resistance that this plugs end 11 end faces, and offsets this radially outer component F by this
2, with the structure of protecting these slot 13 converging transitions 131 not by this radially outer component F
2Destroy.
In addition; See also Fig. 3; Because groove 23 degree of depth that plug in the portion 22 of this cutter head 2 are cumulative towards this conical section 221 from this cylindrical portion 222, promptly to resist in the bottom surface 231 of this groove 23 be an inclined-plane to this locking part 3, so get loose and after breaking away from the bottom surface 231 of this groove 23 a little in this locking part 3; 2 of this cutter heads will lose location closely; But because of the bottom surface 231 of this groove 23 receives the block of this locking part 3 to make this cutter head 2 can not break away from this slot 13 immediately again, and can avoid in the high-speed cutting operation, this cutter head 2 separates suddenly with this handle of a knife 1 and causes danger.
Claims (4)
1. the structure-improved of a dismountable rose reamer, it includes:
One handle of a knife has one in an end wherein and plugs end, and this plugs to hold and is provided with one in end face and has opening slot outwardly, and plugs the end outer circumferential side in this and be provided with the locking hole that always passes to this slot;
One cutter head; The one of which end is provided with a cutting part, but the other end then is provided with the plug portion of a corresponding inserted in this slot, and this cutter head is inserted in the slot of this handle of a knife with this portion of plugging; And stretched through this locking hole with a locking part and prop up the portion that plugs of this cutter head, it is characterized in that:
This slot is formed with a converging transition and a flat segments from this opening towards this handle of a knife direction in regular turn, and the portion of plugging of this cutter head is then to converging transition that should slot and flat segments and be formed with a conical section and a cylindrical portion.
2. the structure-improved of dismountable rose reamer as claimed in claim 1; It is characterized in that; The place more is concaved with a degree of depth towards the cumulative groove of said conical section in the corresponding said locking hole of the cylindrical portion outer circumferential side of said cutter head, and stretched through this locking hole and stretch into this groove and prop up the cylindrical portion of this cutter head of this locking part.
3. the structure-improved of dismountable rose reamer as claimed in claim 2 is characterized in that, the bottom surface of said groove is an inclined-plane.
4. the structure-improved of dismountable rose reamer as claimed in claim 1 is characterized in that, the external diameter of said slot opening plugs the external diameter of end end face less than said handle of a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201514860U CN202106079U (en) | 2011-05-13 | 2011-05-13 | Modified structure of detachable chamfer cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201514860U CN202106079U (en) | 2011-05-13 | 2011-05-13 | Modified structure of detachable chamfer cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202106079U true CN202106079U (en) | 2012-01-11 |
Family
ID=45431528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201514860U Expired - Fee Related CN202106079U (en) | 2011-05-13 | 2011-05-13 | Modified structure of detachable chamfer cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202106079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762161B (en) * | 2021-01-21 | 2022-04-21 | 正河源股份有限公司 | Drilling machine chamfering tool |
-
2011
- 2011-05-13 CN CN2011201514860U patent/CN202106079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762161B (en) * | 2021-01-21 | 2022-04-21 | 正河源股份有限公司 | Drilling machine chamfering tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120513 |