CN103894646A - Tool and method for inverse scratching machining of counter bore in inner wall of machining box - Google Patents
Tool and method for inverse scratching machining of counter bore in inner wall of machining box Download PDFInfo
- Publication number
- CN103894646A CN103894646A CN201410087652.3A CN201410087652A CN103894646A CN 103894646 A CN103894646 A CN 103894646A CN 201410087652 A CN201410087652 A CN 201410087652A CN 103894646 A CN103894646 A CN 103894646A
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- CN
- China
- Prior art keywords
- bit head
- chamfering bit
- flat
- knife bar
- counterbore
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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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a tool for inverse scratching machining of a counter bore in the inner wall of a machining box. The tool comprises an inverse scratching drill bit installed at the working end of a cutter bar, a blind bore is formed in the front end of the inverse scratching drill bit along the axis, the diameter of the blind bore is D, and the size of the portion from the bore bottom face of the blind bore to the end face of the tail of the inverse scratching drill bit is L1; a milling groove is formed in the tail of the inverse scratching drill bit, and the milling groove and the blind bore are through in a milling mode; the diameter of the working end of the cutter rod is d, the head of the working end is milled into a slant and flat part, the thickness of the slant and flat part along the slope is C, an even and flat part is milled in the root of the slant and flat part in the horizontal direction, the thickness of the even and flat part along the plane is E, and the axial length of the even and flat part is L2. The invention further discloses a method for inverse scratching machining the counter bore in the inner wall of the machining box. By means of the tool and method, the counter bore in the inner wall of the box can be rapidly, simply and conveniently machined, the machining difficulty is reduced, and the machining efficiency is greatly improved.
Description
Technical field
The invention belongs to plant equipment manufacturing technology field, relate to a kind of instrument for anti-stroke machining box inwall counterbore, the invention still further relates to a kind of for anti-method of drawing machining box inwall counterbore.
Background technology
Conventionally machining box inwall counterbore, is that boring bar is put in to casing by aperture, fills hilted broadsword on boring bar, bores counterbore on cabinet wall.This mode needs tool setting, measurement, repeatedly adjusts boring cutter length in process, and process is very complicated, wastes time and energy, working (machining) efficiency is very low, and processing effect is unsatisfactory, while running into the casing of narrow space, processing will be more difficult, even cannot implement.
Summary of the invention
The object of this invention is to provide a kind ofly for the anti-instrument of drawing machining box inwall counterbore, solved in prior art cabinet wall counterbore processing difficulties, crudy is difficult to the problem ensureing.
Another object of the present invention is to provide a kind of for anti-method of drawing machining box inwall counterbore, has solved in prior art cabinet wall counterbore processing difficulties, and crudy is difficult to the problem ensureing.
The technical solution adopted in the present invention is, a kind ofly comprises for the anti-instrument of drawing machining box inwall counterbore the anti-chamfering bit head that is arranged on knife bar working end,
The front end edge axle center of described anti-chamfering bit head is provided with blind hole, and the bottom surface, hole of this blind hole is of a size of L1 to anti-chamfering bit head-tail end face; Have the groove milling logical with blind hole milling at the afterbody of anti-chamfering bit head;
The diameter of knife bar working end is d, and the termination milling of working end is for tiltedly flat, and this is tiltedly flat is C along ramp thickness, oblique flat root along continuous straight runs be milled with one section flat flat, this Duan Pingbian is E along planar thickness, the axial length of this Duan Pingbian is L2.
Another technical scheme of the present invention is that a kind of method for anti-stroke machining box inwall counterbore, utilizes above-mentioned instrument, implements according to following steps:
First the groove milling of anti-chamfering bit head is packed into from knife bar working end along oblique flat direction, until an anti-chamfering bit blind hole bottom surface F is while encountering the P endface position of knife bar, again the groove milling of anti-chamfering bit head is rotated counterclockwise to flat flat direction, coordinates with L2 by L1 an anti-chamfering bit axial location at flat flat place, realize locking;
The invention has the beneficial effects as follows, comprise anti-chamfering bit head and the knife bar being used in conjunction with it, the anti-bit diameter of drawing is provided with different size by conventional counterbore size, knife bar has different size by the anti-drill bit size of drawing, by fast-assembling quick change multiple-cutting-edge mode machining box inwall counterbore, machining box inwall counterbore that can be fast and convenient, has reduced difficulty of processing, has greatly improved working (machining) efficiency.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of apparatus of the present invention;
Fig. 2 is A-A cross section structure schematic diagram in Fig. 1;
Fig. 3 is the structural representation of the anti-chamfering bit head in apparatus of the present invention;
Fig. 4 is the side view (i.e. the anti-front view of drawing chisel edge) of Fig. 3 right-hand member;
Fig. 5 is the lever structure schematic diagram in apparatus of the present invention;
Fig. 6 is B-B cutaway view structural representation in Fig. 5;
Fig. 7 is the detailed description of the invention schematic diagram of the inventive method.
In figure, 1. anti-chamfering bit head, 2. knife bar, 3. taper shank, 4. machine tool chief axis, 5. workpiece, 6. cutting edge,
In addition, D is anti-chamfering bit 1 blind hole diameter, F is an anti-chamfering bit 1 hole bottom surface, G is anti-chamfering bit 1 tail end face, H is an anti-chamfering bit 1 groove milling width, and bottom surface, the hole F that L1 is blind hole is to the size of an anti-chamfering bit 1 tail end face G, and C is tiltedly flat along ramp thickness, E is for flat flat along planar thickness, and L2 is flat flat axial length.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, Figure 2, Figure 3 shows, apparatus of the present invention structure is, comprises the anti-chamfering bit 1 that is arranged on knife bar 2 working ends, and anti-chamfering bit 1 is provided with different size, the taper shank 3(stiff end of knife bar 2) be clamped in machine tool chief axis 4.
As shown in Figure 3, be provided with blind hole (this blind hole diameter is D) at the front end (towards processing direction of feed) of anti-chamfering bit 1 along axle center, bottom surface, the hole F of this blind hole is of a size of L1 to an anti-chamfering bit 1 tail end face G; Afterbody in anti-chamfering bit 1 has the groove milling logical with blind hole milling (this groove milling width is H).
As shown in Figure 4, the front end of anti-chamfering bit 1 is provided with multiple cutting edges 6, and embodiment is cutting clockwise.
As shown in Figure 5, Figure 6, the diameter of knife bar 2 working ends is d, the termination milling of working end is tiltedly flat (this tiltedly flat be C along ramp thickness), and oblique flat root along continuous straight runs is milled with one section flat flat (this Duan Pingbian is E along planar thickness), and the axial length of this Duan Pingbian is L2.
The taper shank 3 of knife bar 2 afterbodys, according to the form such as Morse taper shank or 7/24 tapering taper shank of the taper hole parameters selection band tang of selected machine tool chief axis 4.
As shown in Figure 7, the blade of anti-chamfering bit 1 is towards taper shank 3 directions of knife bar 2, and by central blind hole D and the knife bar 2 working end cylindricals sockets of anti-chamfering bit 1, D coordinates realization to locate with d.
The present invention, for anti-method of drawing machining box inwall counterbore, utilizes above-mentioned instrument, implements according to following steps:
First the groove milling of anti-chamfering bit 1 is packed into from knife bar working end along oblique flat direction, until an anti-chamfering bit 1 blind hole bottom surface F is while encountering the P endface position of knife bar 2, again the groove milling of anti-chamfering bit 1 is rotated counterclockwise to flat flat direction (with reference to figure 2, Fig. 6), coordinate with L2 by L1 anti-chamfering bit 1 axial location at flat flat place, realize locking, as shown in Figure 7;
By that analogy, and then process next place's counterbore, use the anti-chamfering bit 1 of different size according to counterbore size, reach quick change effect.
Tool construction of the present invention is simple, and cost is low, easy to manufacture, on lathe install, use very simple and convenient, can be for the processing of various box-type workpieces inwall counterbores.In the time of this type of counterbore of machine tooling, no longer include clamping cutter, measure the inconvenience difficulty such as waste time and energy, reduced workman's operation easier, greatly improved working (machining) efficiency.
Claims (4)
1. for an anti-instrument of drawing machining box inwall counterbore, its feature is: comprise the anti-chamfering bit head (1) that is arranged on knife bar (2) working end,
The front end edge axle center of described anti-chamfering bit head (1) is provided with blind hole, and this blind hole diameter is D, and the bottom surface, hole of this blind hole is of a size of L1 to anti-chamfering bit head (1) tail end face; Have the groove milling logical with blind hole milling at the afterbody of anti-chamfering bit head (1);
The diameter of knife bar (2) working end is d, and the termination milling of working end is for tiltedly flat, and this is tiltedly flat is C along ramp thickness, oblique flat root along continuous straight runs be milled with one section flat flat, this Duan Pingbian is E along planar thickness, the axial length of this Duan Pingbian is L2.
2. according to claim 1 for the anti-instrument of drawing machining box inwall counterbore, its feature is: described thickness C=thickness E, diameter D=diameter d, size L1=size L2.
3. according to claim 1 for the anti-instrument of drawing machining box inwall counterbore, its feature is: the front end of described anti-chamfering bit head (1) is provided with multiple cutting edges (6).
4. for an anti-method of drawing machining box inwall counterbore, its feature is, utilizes the instrument described in claim 1-3, implements according to following steps:
Step 1, first by upper firm the taper shank of knife bar (2) (3) machine tool chief axis (4) that is arranged on, then knife bar (2) work termination is penetrated from the bottom outlet of workpiece (5);
Step 2, pack anti-chamfering bit head (1) into knife bar (2) work termination in inwall one side of workpiece (5)
First the groove milling of anti-chamfering bit head (1) is packed into from knife bar working end along oblique flat direction, until anti-chamfering bit head (1) blind hole bottom surface F is while encountering the P endface position of knife bar (2), again the groove milling of anti-chamfering bit head (1) is rotated counterclockwise to flat flat direction, coordinate with L2 by L1 anti-chamfering bit head (1) axial location at flat flat place, realize locking;
Step 3, startup machine tool chief axis (4) drive knife bar (2), and knife bar (2) drives anti-chamfering bit head (1) rotation, and anti-chamfering bit head (1) just can cut out counterbore at the inwall of workpiece (5); After counterbore processes, the anti-chamfering bit head of opposite spin (1), makes groove milling rotation to oblique flat position, anti-chamfering bit head (1) be exited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410087652.3A CN103894646A (en) | 2014-03-11 | 2014-03-11 | Tool and method for inverse scratching machining of counter bore in inner wall of machining box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410087652.3A CN103894646A (en) | 2014-03-11 | 2014-03-11 | Tool and method for inverse scratching machining of counter bore in inner wall of machining box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103894646A true CN103894646A (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410087652.3A Pending CN103894646A (en) | 2014-03-11 | 2014-03-11 | Tool and method for inverse scratching machining of counter bore in inner wall of machining box |
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| CN (1) | CN103894646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227062A (en) * | 2014-09-17 | 2014-12-24 | 东方电气(广州)重型机器有限公司 | Method for machining plurality of reverse stepped holes in plane |
| CN119282248A (en) * | 2024-11-14 | 2025-01-10 | 中国航发西安动力控制科技有限公司 | Adjustable reverse scratch auxiliary positioning device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2083524U (en) * | 1990-11-09 | 1991-08-28 | 韩晓良 | Rapid changeable return drill |
| EP0287711B1 (en) * | 1987-04-17 | 1992-04-15 | WALTER Aktiengesellschaft | Drilling and milling tool |
| CN201371266Y (en) * | 2009-04-02 | 2009-12-30 | 南车戚墅堰机车有限公司 | Counter bore backsinking cutter |
| CN201385142Y (en) * | 2009-03-31 | 2010-01-20 | 长沙水泵厂有限公司 | Mechanical clamped counter bit tool |
| CN201419270Y (en) * | 2009-03-31 | 2010-03-10 | 安瑞科(蚌埠)压缩机有限公司 | Quick-changing reverse countersinking cutter |
| CN201799664U (en) * | 2010-09-16 | 2011-04-20 | 西安西航集团莱特航空制造技术有限公司 | Numerical-control countersinking high-efficiency machining cutter |
-
2014
- 2014-03-11 CN CN201410087652.3A patent/CN103894646A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0287711B1 (en) * | 1987-04-17 | 1992-04-15 | WALTER Aktiengesellschaft | Drilling and milling tool |
| CN2083524U (en) * | 1990-11-09 | 1991-08-28 | 韩晓良 | Rapid changeable return drill |
| CN201385142Y (en) * | 2009-03-31 | 2010-01-20 | 长沙水泵厂有限公司 | Mechanical clamped counter bit tool |
| CN201419270Y (en) * | 2009-03-31 | 2010-03-10 | 安瑞科(蚌埠)压缩机有限公司 | Quick-changing reverse countersinking cutter |
| CN201371266Y (en) * | 2009-04-02 | 2009-12-30 | 南车戚墅堰机车有限公司 | Counter bore backsinking cutter |
| CN201799664U (en) * | 2010-09-16 | 2011-04-20 | 西安西航集团莱特航空制造技术有限公司 | Numerical-control countersinking high-efficiency machining cutter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227062A (en) * | 2014-09-17 | 2014-12-24 | 东方电气(广州)重型机器有限公司 | Method for machining plurality of reverse stepped holes in plane |
| CN119282248A (en) * | 2024-11-14 | 2025-01-10 | 中国航发西安动力控制科技有限公司 | Adjustable reverse scratch auxiliary positioning device and method |
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| PB01 | Publication | ||
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Application publication date: 20140702 |