CN206215976U - A kind of counterbore counterbit - Google Patents
A kind of counterbore counterbit Download PDFInfo
- Publication number
- CN206215976U CN206215976U CN201621152032.4U CN201621152032U CN206215976U CN 206215976 U CN206215976 U CN 206215976U CN 201621152032 U CN201621152032 U CN 201621152032U CN 206215976 U CN206215976 U CN 206215976U
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- China
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- counterbore
- guide pillar
- counterbit
- post
- cutting
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Abstract
A kind of counterbore counterbit,Belong to machining apparatus technical field,Counterbore counterbit is by guide pillar,Counterbore cuts post and drillstock is constituted,Counterbore to cut be provided between post and drillstock and allows cutter groove,Guide pillar is provided with the chip area for mutually linking up and being threaded lift angle α with counterbore cutting post surface,Chip area originates in the head of guide pillar,End in and allow in cutter groove,Fast access slot is provided with the middle part of drillstock,Guide pillar head is provided with guide pillar opening angle,The first cutting plane being made up of the first cutting edge and the second cutting plane being made up of the second cutting edge are provided with the head end of counterbore cutting post,First cutting edge forms the first relief angle γ with basal plane,Second cutting edge forms the second relief angle δ with basal plane,The outer round surface of guide pillar forms counterbore cutting post opening angle β with basal plane,The utility model is rational in infrastructure,Its positioning precision and machining accuracy have obtained significant raising compared with traditional hole drill and counterbit,Improve the processing efficiency of drilling and spot-facing.
Description
Technical field
The invention belongs to machining apparatus technical field, it is related to a kind of machine tool and processing technology, specifically
It is related to a kind of counterbore counterbit.
Background technology
Drilling and spot-facing are a kind of processing modes common in machining, and drilling is that hole is processed on solid material with drill bit
Process, a part is removed in boring procedure and completes outer by lathes such as car, boring, millings, be greatly using boring by pincers worker
What bed and boring bar tool (drill bit, reamer, reamer etc.) were completed；And spot-facing refers to that cylindrical countersunk head is processed on machined hole
Hole, taper counter sink and boss section etc., the purpose of spot-facing be in order to ensure the perpendicularity in aperture and centerline hole, so as to hole
The part position of connection is correct, and connection is reliable.Go out cylindricality or tapered counterbore in the connection nose end ream of workpiece, buried with counter-sunk screw
Enter in hole and relevant part is coupled together, make outward appearance neat, rigging position is compact.By aperture flattening end surface, and and centerline hole
Vertically, the end face and connector that can make connecting bolt (or nut) keep good contact.
In process for machining, spot-facing is at after Drilling operation operation, in reality processing, either in bench drill
Upper processing or the processing in electronic hand drill, are required for removing on drill bit after the completion of drilling and again load onto counterbit, on the one hand, by
Clamped in clamper in drill bit and counterbit unstable, the axial and circumferential of drill bit and counterbit can produce small displacement, easily
Rocking and beating for drill bit and counterbit is caused, is on the other hand easier to increase the error of axiality during more bit change,
Not only drill bit and counterbit Renewal process are complicated, and its machining accuracy also receives strong influence.
The content of the invention
The present invention clamps unstable for traditional hole drill and counterbit in clamper, and hole drill and counterbit Renewal process are complicated,
Also easily occur the deficiencies such as coaxiality error in replacing, propose a kind of counterbore counterbit, drill bit can be increased considerably and screw tap exists
Chucking power in fixture, can be rapidly performed by spot-facing processing after the completion of drilling, can improve the precision of drilling and spot-facing, its processing
Efficiency also can obtain effective raising.
Technical scheme：A kind of counterbore counterbit, it is characterised in that：The counterbore counterbit is cut by guide pillar, counterbore
Post and drillstock are constituted, and are provided between the counterbore cutting post and the drillstock and are allowed cutter groove, the guide pillar and counterbore cutting post surface
The chip area for mutually linking up and being threaded lift angle α is provided with, the chip area of the threaded lift angle α originates in the head of guide pillar, cuts
Allowed described in terminating in cutter groove, fast access slot is provided with the middle part of the drillstock, the guide pillar head is provided with guide pillar opening angle, described heavy
The first cutting plane being made up of the first cutting edge and be made up of the second cutting edge the is provided with the head end of hole cutting post
Two cutting planes, first cutting edge forms the first relief angle γ with basal plane, after second cutting edge forms second with basal plane
Angle δ, outer round surface and the basal plane of the guide pillar form counterbore cutting post opening angle β.
The chip area is helicla flute, and the lead angle α of chip area is 15 °, and the slot number of chip area is 1~6.
The fast access slot is arc groove, and the radius of fast access slot is 3.5mm, and the groover rot diameter of fast access slot is 4.9mm, fast access slot
The centre-to-centre spacing of the center of circle and drillstock afterbody be 13mm.
The first relief angle γ is 6 °.
The second relief angle δ is 20 °.
The circular arc chamfering for allowing cutter groove left side that R0.5 is formed with guide pillar, allows cutter groove right side to form R1.1 with counterbore cutting post
Circular arc chamfering, allow cutter groove groover rot diameter be 5mm.
The drillstock is in honest hexa-prism, and the length of drillstock is 30mm.
The guide pillar and counterbore cutting post are cylinder, and the diameter of guide pillar cuts the diameter of post less than or equal to counterbore.
Beneficial effects of the present invention are：A kind of counterbore counterbit proposed by the present invention, rational in infrastructure, whole drilling counterbit is by leading
Post, counterbore cutting post and drillstock are constituted, and drillstock is positive six prismsby, and fast access slot is set in the middle part of drillstock, using folder during use
Steel ball positioning action has increased considerably chucking power of the counterbore counterbit in fixture, the shape of clamping in fast access slot in holding device
State is more stable, solves rocking for traditional hole drill and counterbit work in-process, and its positioning accurate is compared with counterbit with traditional hole drill
Degree and machining accuracy have obtained significant raising, improve the processing efficiency of drilling and spot-facing.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is main structure diagram of the present invention.
Fig. 3 is close-up schematic view in Fig. 1.
Fig. 4 is right side structural representation in Fig. 2.
Fig. 5 is left view structural representation in Fig. 2.
In figure：The cutting of guide pillar 1, counterbore post 2, chip area 3, allow cutter groove 4, drillstock 5, fast access slot 6, basal plane 7, the first cutting edge
8th, the second cutting edge 9.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As Figure 1-5, a kind of counterbore counterbit, counterbore counterbit cuts post 2 by guide pillar 1, counterbore and drillstock 5 is constituted, counterbore
It is provided between cutting post 2 and drillstock 5 and allows cutter groove 4, guide pillar 1 is provided with mutually coherent and is threaded lift angle α with counterbore cutting post 2 surface
Chip area 3, the chip area 3 of threaded lift angle α originates in the head of guide pillar 1, ends in and allows in cutter groove 4, and the middle part of drillstock 5 sets
There is fast access slot 6, the head of guide pillar 1 is provided with guide pillar opening angle, is provided with by the first cutting edge 8 at the head end of counterbore cutting post 2
The first cutting plane for constituting and the second cutting plane for being made up of the second cutting edge 9, the first cutting edge 8 and basal plane 7 form the
One relief angle γ, the second cutting edge 9 forms the second relief angle δ with basal plane 7, and outer round surface and the basal plane 7 of guide pillar 1 form counterbore cutting post
Opening angle β.
As Figure 1-5, a kind of counterbore counterbit, chip area 3 is helicla flute, and the lead angle α of chip area 3 is 15 °, chip removal
The slot number of groove 3 is 1~6, and the bar number of chip area is 2 in the present embodiment；Fast access slot 6 is arc groove, and the radius of fast access slot 6 is
3.5mm, the groover rot diameter of fast access slot 6 is 4.9mm, and the center of circle of fast access slot 6 is 13mm with the centre-to-centre spacing of the afterbody of drillstock 5；After first
Angle γ is 6 °；Second relief angle δ is 20 °；Allow the left side of cutter groove 4 that the circular arc chamfering of R0.5 is formed with guide pillar 1, allow the right side of cutter groove 4 with it is heavy
Hole cutting post 2 formed R1.1 circular arc chamfering, allow cutter groove 4 groover rot diameter be 5mm；Drillstock 5 is in honest hexa-prism, drillstock 5
Length be 30mm；Guide pillar 1 and counterbore cutting post 2 are cylinder, and the diameter of guide pillar 1 is less than or equal to counterbore cutting post 2
Diameter.
The present invention is rational in infrastructure, and whole drilling counterbit is made up of guide pillar, counterbore cutting post and drillstock, and drillstock is positive six rib
Post, sets fast access slot in the middle part of drillstock, during use using steel ball positioning action in clamping device in fast access slot, significantly
Chucking power of the counterbore counterbit in fixture is increased, the state of clamping is more stable, solve traditional hole drill and counterbit in processing
In rock, its positioning precision and machining accuracy have obtained significant raising compared with traditional hole drill and counterbit, improve brill
Hole and the processing efficiency of spot-facing.
Claims (8)
1. a kind of counterbore counterbit, it is characterised in that：The counterbore counterbit is by guide pillar (1), counterbore cutting post (2) and drillstock (5) structure
To cut be provided between post (2) and the drillstock (5) into, the counterbore and allow cutter groove (4), the guide pillar (1) cuts post (2) with counterbore
Surface is provided with the chip area (3) for mutually linking up and being threaded lift angle α, and the chip area (3) of the threaded lift angle α originates in guide pillar
(1) head, end in it is described allow in cutter groove (4), fast access slot (6), guide pillar (1) head are provided with the middle part of the drillstock (5)
Portion is provided with guide pillar opening angle, and first be made up of the first cutting edge (8) is provided with the head end of counterbore cutting post (2)
Cutting plane and the second cutting plane being made up of the second cutting edge (9), first cutting edge (8) and basal plane (7) form the
One relief angle γ, second cutting edge (9) forms the second relief angle δ, the outer round surface and basal plane of the guide pillar (1) with basal plane (7)
(7) counterbore cutting post opening angle β is formed.
2. a kind of counterbore counterbit according to claim 1, it is characterised in that：The chip area (3) is helicla flute, chip area
(3) lead angle α is 15 °, and the slot number of chip area (3) is 1~6.
3. a kind of counterbore counterbit according to claim 1, it is characterised in that：The fast access slot (6) is arc groove, fast access slot
(6) radius is 3.5mm, and the groover rot diameter of fast access slot (6) is 4.9mm, in the center of circle of fast access slot (6) and drillstock (5) afterbody
The heart is away from being 13mm.
4. a kind of counterbore counterbit according to claim 1, it is characterised in that：The first relief angle γ is 6 °.
5. a kind of counterbore counterbit according to claim 1, it is characterised in that：The second relief angle δ is 20 °.
6. a kind of counterbore counterbit according to claim 1, it is characterised in that：Described cutter groove (4) left side and guide pillar (1) shape of allowing
Into the circular arc chamfering of R0.5, allow cutter groove (4) right side to cut the circular arc chamfering that post (2) forms R1.1 with counterbore, allow the groove of cutter groove (4)
The a diameter of 5mm in bottom.
7. a kind of counterbore counterbit according to claim 1, it is characterised in that：The drillstock (5) is bored in honest hexa-prism
The length of handle (5) is 30mm.
8. a kind of counterbore counterbit according to claim 1, it is characterised in that：The guide pillar (1) and counterbore cut post (2)
It is cylinder, the diameter of the diameter less than or equal to counterbore cutting post (2) of guide pillar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621152032.4U CN206215976U (en) | 2016-10-31 | 2016-10-31 | A kind of counterbore counterbit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621152032.4U CN206215976U (en) | 2016-10-31 | 2016-10-31 | A kind of counterbore counterbit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206215976U true CN206215976U (en) | 2017-06-06 |
Family
ID=58788455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621152032.4U Active CN206215976U (en) | 2016-10-31 | 2016-10-31 | A kind of counterbore counterbit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206215976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392149A (en) * | 2016-10-31 | 2017-02-15 | 扬州市实力五金工具工贸有限公司 | Counterbore countersink drill and machining process thereof |
-
2016
- 2016-10-31 CN CN201621152032.4U patent/CN206215976U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392149A (en) * | 2016-10-31 | 2017-02-15 | 扬州市实力五金工具工贸有限公司 | Counterbore countersink drill and machining process thereof |
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