CN106392149A - Counterbore countersink drill and machining process thereof - Google Patents
Counterbore countersink drill and machining process thereof Download PDFInfo
- Publication number
- CN106392149A CN106392149A CN201610927480.5A CN201610927480A CN106392149A CN 106392149 A CN106392149 A CN 106392149A CN 201610927480 A CN201610927480 A CN 201610927480A CN 106392149 A CN106392149 A CN 106392149A
- Authority
- CN
- China
- Prior art keywords
- counterbore
- cutting
- guide pillar
- counterbit
- post
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- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/107—Bits for countersinking having a pilot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
- B23B2251/043—Helix angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/408—Spiral grooves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides a counterbore countersink drill and a machining process thereof and belongs to the technical field of machining equipment. The counterbore countersink drill is composed of a guide column, a counterbore cutting column and a drill handle. A cutter relieving groove is formed between the counterbore cutting column and the drill handle. A coherent chip removing groove with a lead angle Alpha is formed in the surface of the guide column and the surface of the counterbore cutting column, starts at the head of the guide column and ends in the cutter relieving groove. The middle of the drill handle is provided with a rapid receiving groove. The head of the guide column is provided with a guide column opening angle. The end surface of the head of the counterbore cutting column is provided with a first cutting plane composed of a first cutting edge and a second cutting plane composed of a second cutting edge. The first cutting edge and the basal plane form a first relief angle Gamma. The second cutting edge and the basal plane form a second relief angle Delta. The outer circle surface of the guide column and the basal plane form a counterbore cutting column opening angle Beta. According to the counterbore countersink drill and the machining process thereof, the structure is reasonable; the machining process is clear in procedure; the positioning precision and the machining precision of the counterbore countersink drill are significantly improved compared with those of a traditional hole drill and a traditional countersink drill; and the machining efficiency of drilling and countersinking is improved.
Description
Technical field
The invention belongs to machining apparatus technical field, it is related to a kind of machine tool and processing technique, specifically
It is related to the processing technique of a kind of counterbore counterbit and counterbore counterbit.
Background technology
Boring and spot-facing are common a kind of processing modes in machining, and boring is to process hole on solid material with drill bit
Process, boring procedure removes a part and is completed by lathes such as car, boring, millings outer, be greatly using boring by pincers worker
Bed and boring bar tool (drill bit, reamer, reamer etc.) complete；And spot-facing refers to process cylindrical countersunk head on machined hole
Hole, taper counter sink and boss section etc., the purpose of spot-facing is to ensure that the perpendicularity in aperture and centerline hole, so that and hole
The part position connecting is correct, connects reliable.Go out cylindricality or tapered counterbore in the connection nose end ream of workpiece, buried with counter-sunk screw
Enter in the hole 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 of connecting bolt (or nut) and connector can be made to keep good contact.
In process for machining, after spot-facing is at Drilling operation operation, in reality processing, either in bench drill
Upper processing or processing in electronic hand drill, are required for taking off drill bit after the completion of boring and load onto counterbit, on the one hand, by
Clamp unstable in clamper in drill bit and counterbit, the axial and circumferential of drill bit and counterbit all can produce small displacement, easily
Cause rocking and beating of drill bit and counterbit, be 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.
Content of the invention
The present invention is directed to traditional hole drill and counterbit clamp in clamper unstable, hole drill and counterbit Renewal process complicated,
The deficiencies such as coaxiality error also easily occur in replacing, proposes the processing technique of a kind of counterbore counterbit and counterbore counterbit, permissible
Increase considerably the drill bit and screw tap chucking power in fixture, spot-facing processing can be rapidly performed by after the completion of boring, can improve
Boring and the precision of spot-facing, its working (machining) efficiency also can get effective raising.
Technical scheme：A kind of counterbore counterbit it is characterised in that：Described counterbore counterbit is cut by guide pillar, counterbore
Post and drillstock are constituted, and be provided with and allow cutter groove, described guide pillar and counterbore cut post surface between described counterbore cutting post and described drillstock
It is provided with the chip area mutually linking up and being threaded lift angle α, the chip area of described threaded lift angle α originates in the head of guide pillar, cuts
Allow described in terminating in cutter groove, the middle part of described drillstock is provided with fast access slot, described guide pillar head is provided with guide pillar opening angle, described heavy
Hole is cut and is provided with the first cutting plane being made up of the first cutting edge and be made up of the second cutting edge the at the head end of post
Two cutting planes, described first cutting edge and basal plane form the first relief angle γ, after described second cutting edge forms second with basal plane
Angle δ, the outer round surface of described guide pillar and basal plane form counterbore cutting post opening angle β.
Described chip area is helicla flute, and lead angle α of chip area is 15 °, and the slot number of chip area is 1～6.
Described 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.
Described first relief angle γ is 6 °.
Described second relief angle δ is 20 °.
Described allow the circular arc chamfering forming R0.5 on the left of cutter groove with guide pillar, allow and form R1.1 with counterbore cutting post on the right side of cutter groove
Circular arc chamfering, allow cutter groove groover rot diameter be 5mm.
Described drillstock is in honest hexa-prism, and the length of drillstock is 30mm.
Described guide pillar and counterbore cutting post are cylinder, and the diameter of guide pillar is less than or equal to the diameter that counterbore cuts post.
A kind of processing technique of counterbore counterbit is it is characterised in that include following preparation process：
(1) blanking：φ7×51mm；
(2) segmentation turning：
(2-1) car guide pillar part：φ3.7×5.5mm；
(2-2) car counterbore cutting post part：φ6.3×5.5mm；
(2-3) car is by cutter groove：φ5×9mm；
(2-4) wagon drill handle：φ7.5×30mm；
(2-5) the fast access slot of car：φ4.9×R3.5mm；
(3) heat treatment：1200 DEG C be tempered four times, respectively 550 DEG C, 550 DEG C, 550 DEG C, 500 DEG C；
(4) peripheral milling：
(4-1) grind guide pillar part：φ3.4mm；
(4-2) mill counterbore cutting post part：φ6mm；
(4-3) sharpen and connect handle portion：φ7.2mm；
(5) grind chip area：Lead angle is 15 °, and chip area bar number is 2；
(6) counterbore cutting post part clear side：Mill cutting edge, reduces Tool in Cutting resistance；
(7) opening：
(7-1) guide pillar outs open：Opening angle is 180 °；
(7-2) counterbore cutting post part opening：Opening angle is 90 °, and the first relief angle is 6 °, and the second relief angle is 20 °；
(8) press hexagonal：Connect handle portion soon and be depressed into opposite a size of 6.35mm；
(9) inspection warehouse-in：Check whether outward appearance, size are qualified, qualified warehouse-in.
Beneficial effects of the present invention are：A kind of counterbore counterbit proposed by the present invention and the processing technique of counterbore counterbit, knot
Rationally, processing process is clear for structure, and whole boring counterbit is made up of guide pillar, counterbore cutting post and drillstock, and drillstock is positive six ribs
Post, arranges fast access slot in the middle part of drillstock, during use using steel ball positioning action in clamping device in fast access slot, significantly
Increased chucking power in fixture for the counterbore counterbit, the state of clamping is more stable, solve traditional hole drill and counterbit in processing
In rock, compare its positioning precision with counterbit with traditional hole drill and machining accuracy obtained significant raising, improve brill
Hole and the working (machining) efficiency of spot-facing.
Brief description
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.
Fig. 6 is processing technique structural representation of the present invention.
In figure：Guide pillar 1, counterbore cutting 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 is made up of guide pillar 1, counterbore cutting post 2 and drillstock 5, counterbore
Cutting to be provided between post 2 and drillstock 5 allows cutter groove 4, guide pillar 1 and counterbore cutting post 2 surface to be provided with and mutually to link up and be threaded lift angle α
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, the middle part of drillstock 5 sets
There is fast access slot 6, guide pillar 1 head is provided with guide pillar opening angle, counterbore cuts and is provided with by the first cutting edge 8 at the head end of post 2
The first cutting plane constituting and the second cutting plane 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 and basal plane 7 form the second relief angle δ, and the outer round surface of guide pillar 1 and basal plane 7 form counterbore cutting post
Opening angle β.
As Figure 1-5, a kind of counterbore counterbit, chip area 3 is helicla flute, and lead angle α of chip area 3 is 15 °, chip removal
The slot number of groove 3 is 1～6, and in the present embodiment, the bar number of chip area is 2；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 drillstock 5 afterbody；After first
Angle γ is 6 °；Second relief angle δ is 20 °；Allow cutter groove 4 left side and guide pillar 1 form the circular arc chamfering of R0.5, allow cutter groove 4 right side with heavy
Hole cut 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 and cuts post 2
Diameter.
As shown in fig. 6, a kind of processing technique of counterbore counterbit, including following preparation process：
(1) blanking：φ7×51mm；
(2) segmentation turning：
(2-1) car guide pillar part：φ3.7×5.5mm；
(2-2) car counterbore cutting post part：φ6.3×5.5mm；
(2-3) car is by cutter groove：φ5×9mm；
(2-4) wagon drill handle：φ7.5×30mm；
(2-5) the fast access slot of car：φ4.9×R3.5mm；
(3) heat treatment：1200 DEG C be tempered four times, respectively 550 DEG C, 550 DEG C, 550 DEG C, 500 DEG C；
(4) peripheral milling：
(4-1) grind guide pillar part：φ3.4mm；
(4-2) mill counterbore cutting post part：φ6mm；
(4-3) sharpen and connect handle portion：φ7.2mm；
(5) grind chip area：Lead angle is 15 °, and chip area bar number is 2；
(6) counterbore cutting post part clear side：Mill cutting edge, reduces Tool in Cutting resistance；
(7) opening：
(7-1) guide pillar outs open：Opening angle is 180 °；
(7-2) counterbore cutting post part opening：Opening angle is 90 °, and the first relief angle is 6 °, and the second relief angle is 20 °；
(8) press hexagonal：Connect handle portion soon and be depressed into opposite a size of 6.35mm；
(9) inspection warehouse-in：Check whether outward appearance, size are qualified, qualified warehouse-in.
Rationally, processing process is clear for present configuration, and whole boring counterbit is by guide pillar, counterbore cutting post and drillstock structure
Become, drillstock be positive six prismsby, fast access slot is set in the middle part of drillstock, during use utilize clamping device in steel ball positioning action in
In fast access slot, increase considerably chucking power in fixture for the counterbore counterbit, the state of clamping is more stable, solves conventional holes
Brill rocks with counterbit work in-process, and its positioning precision and machining accuracy have obtained significantly compared with traditional hole drill and counterbit
Improve, improve boring and the working (machining) efficiency of spot-facing.
Claims (9)
1. a kind of counterbore counterbit it is characterised in that：Described counterbore counterbit is by guide pillar (1), counterbore cutting post (2) and drillstock (5) structure
Become, be provided between described counterbore cutting post (2) and described drillstock (5) and allow cutter groove (4), described guide pillar (1) and counterbore cut post (2)
Surface is provided with the chip area (3) mutually linking up and being threaded lift angle α, and the chip area (3) of described threaded lift angle α originates in guide pillar
(1) head, end in described in allow in cutter groove (4), the middle part of described drillstock (5) is provided with fast access slot (6), described guide pillar (1) head
Portion is provided with guide pillar opening angle, and described counterbore cuts and is provided with, at the head end of post (2), first being made up of the first cutting edge (8)
Cutting plane and the second cutting plane being made up of the second cutting edge (9), described first cutting edge (8) and basal plane (7) form the
One relief angle γ, described second cutting edge (9) forms the second relief angle δ, the outer round surface of described guide pillar (1) and basal plane with basal plane (7)
(7) form counterbore cutting post opening angle β.
2. a kind of counterbore counterbit according to claim 1 it is characterised in that：Described 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：Described 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 for 13mm.
4. a kind of counterbore counterbit according to claim 1 it is characterised in that：Described first relief angle γ is 6 °.
5. a kind of counterbore counterbit according to claim 1 it is characterised in that：Described second relief angle δ is 20 °.
6. a kind of counterbore counterbit according to claim 1 it is characterised in that：Described allow on the left of cutter groove (4) with guide pillar (1) shape
Become the circular arc chamfering of R0.5, allow and cut, with counterbore, the circular arc chamfering that post (2) forms R1.1 on the right side of cutter groove (4), 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：Described drillstock (5) is in honest hexa-prism, bores
The length of handle (5) is 30mm.
8. a kind of counterbore counterbit according to claim 1 it is characterised in that：Described guide pillar (1) and counterbore cutting post (2) are all
For cylinder, the diameter of guide pillar (1) is less than or equal to the diameter that counterbore cuts post (2).
9. a kind of processing technique of counterbore counterbit is it is characterised in that include following preparation process：
(1) blanking：φ7×51mm；
(2) segmentation turning：
(2-1) car guide pillar part：φ3.7×5.5mm；
(2-2) car counterbore cutting post part：φ6.3×5.5mm；
(2-3) car is by cutter groove：φ5×9mm；
(2-4) wagon drill handle：φ7.5×30mm；
(2-5) the fast access slot of car：φ4.9×R3.5mm；
(3) heat treatment：1200 DEG C be tempered four times, respectively 550 DEG C, 550 DEG C, 550 DEG C, 500 DEG C；
(4) peripheral milling：
(4-1) grind guide pillar part：φ3.4mm；
(4-2) mill counterbore cutting post part：φ6mm；
(4-3) sharpen and connect handle portion：φ7.2mm；
(5) grind chip area：Lead angle is 15 °, and chip area bar number is 2；
(6) counterbore cutting post part clear side：Mill cutting edge, reduces Tool in Cutting resistance；
(7) opening：
(7-1) guide pillar outs open：Opening angle is 180 °；
(7-2) counterbore cutting post part opening：Opening angle is 90 °, and the first relief angle is 6 °, and the second relief angle is 20 °；
(8) press hexagonal：Connect handle portion soon and be depressed into opposite a size of 6.35mm；
(9) inspection warehouse-in：Check whether outward appearance, size are qualified, qualified warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927480.5A CN106392149A (en) | 2016-10-31 | 2016-10-31 | Counterbore countersink drill and machining process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927480.5A CN106392149A (en) | 2016-10-31 | 2016-10-31 | Counterbore countersink drill and machining process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106392149A true CN106392149A (en) | 2017-02-15 |
Family
ID=58011786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610927480.5A Pending CN106392149A (en) | 2016-10-31 | 2016-10-31 | Counterbore countersink drill and machining process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106392149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108481481A (en) * | 2018-03-07 | 2018-09-04 | 张琦 | A kind of split type carpenter's auger and its processing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431067Y (en) * | 2000-06-29 | 2001-05-23 | 上海华灵工具厂 | Clamping handle for hexagon drill bit with ring groove |
| DE202004010977U1 (en) * | 2004-05-28 | 2005-10-13 | Kennametal Inc. | Drills, in particular twist drills |
| CN201371265Y (en) * | 2009-02-13 | 2009-12-30 | 赵顺权 | Centering countersink drill bit |
| CN102814631A (en) * | 2012-09-13 | 2012-12-12 | 沈阳飞机工业（集团）有限公司 | Machining method of two-sided angle counter bit for titanium alloy |
| CN105921793A (en) * | 2016-06-06 | 2016-09-07 | 清华大学 | Drill bit and manufacturing method thereof |
| CN206215976U (en) * | 2016-10-31 | 2017-06-06 | 扬州市实力五金工具工贸有限公司 | A kind of counterbore counterbit |
-
2016
- 2016-10-31 CN CN201610927480.5A patent/CN106392149A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431067Y (en) * | 2000-06-29 | 2001-05-23 | 上海华灵工具厂 | Clamping handle for hexagon drill bit with ring groove |
| DE202004010977U1 (en) * | 2004-05-28 | 2005-10-13 | Kennametal Inc. | Drills, in particular twist drills |
| CN201371265Y (en) * | 2009-02-13 | 2009-12-30 | 赵顺权 | Centering countersink drill bit |
| CN102814631A (en) * | 2012-09-13 | 2012-12-12 | 沈阳飞机工业（集团）有限公司 | Machining method of two-sided angle counter bit for titanium alloy |
| CN105921793A (en) * | 2016-06-06 | 2016-09-07 | 清华大学 | Drill bit and manufacturing method thereof |
| CN206215976U (en) * | 2016-10-31 | 2017-06-06 | 扬州市实力五金工具工贸有限公司 | A kind of counterbore counterbit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108481481A (en) * | 2018-03-07 | 2018-09-04 | 张琦 | A kind of split type carpenter's auger and its processing method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
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| RJ01 | Rejection of invention patent application after publication |