CN106541168A - Drill bit for machining and processing method - Google Patents
Drill bit for machining and processing method Download PDFInfo
- Publication number
- CN106541168A CN106541168A CN201510933184.1A CN201510933184A CN106541168A CN 106541168 A CN106541168 A CN 106541168A CN 201510933184 A CN201510933184 A CN 201510933184A CN 106541168 A CN106541168 A CN 106541168A
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- CN
- China
- Prior art keywords
- cutting edge
- lead
- periphery cutting
- periphery
- drill bit
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- 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
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
Abstract
The drill bit for machining (10) and processing method of lead installing hole are provided, the lead installing hole (20) that lead (103) is difficult to depart from can be processed.With the decline of drill bit for machining, straight hole (21) is cut out on body of the brush (101) by top cutting edge (13), and the helicla flute (22) of the inwall extension along straight hole is cut out by the first periphery cutting edge (14) and the second periphery cutting edge (15).In operation (D) is stopped, drill bit for machining is rotated with the state for stopping lifting, therefore, wide diameter portion (23) is formed in the bottom of straight hole by the first periphery cutting edge and the second periphery cutting edge, the internal diameter of the wide diameter portion is bigger than spiral fluted external diameter.Copper powder (111) is filled in the base end part insertion lead installing hole by lead and to around which, when further pressurization is compressed the copper powder of filling and lead is fixed in lead installing hole, as the base end part of lead is blocked by helicla flute and wide diameter portion, so lead is difficult to from lead installing hole depart from.
Description
Technical field
The present invention relates to be used for the drill bit for machining of the lead installing hole of the carbon brush of electric rotating machine etc. and add
Work method.
Background technology
As a form of carbon brush, in Japanese Unexamined Patent Publication 2006-50772 publications, Japanese Unexamined Patent Publication
Following carbon brush is disclosed in 2008-154453 publications, Japanese Unexamined Patent Publication 2011-50142 publications etc.：It is logical
Cross and the base end part insertion of lead is formed in the lead installing hole of body of the brush, and copper powder is filled to lead
Pressurization compression is carried out after installing hole, so that lead is fixed on body of the brush.
Generally, this kind of lead installing hole is processed on body of the brush using the drill bit 100 shown in Fig. 6.Such as
Shown in Fig. 7, have using the lead installing hole 102 that the drill bit 100 is processed on body of the brush 101 straight
Shape.Lead 103 is arranged in the lead installing hole 102 using lead erecting device 110.Lead
Erecting device 110 have for store copper powder 111 receive ware 112, and receive ware 112 bottom surface open
The pipes 114 that mouth 113 is liftably fitted together to.
The action of the step of by making lead erecting device 110 to schematically show in Fig. 8, by lead 103
It is fixed in the lead installing hole 102 of body of the brush 101.First, make to be inserted with step (A) and draw
The pipe 114 of line 103 declines so that pipe 114 enters lead installing hole 102, and then by from the top of pipe 114
The base end part of the lead 103 that distal process goes out is pressed against the bottom hole of lead installing hole 102, draws so as to shape temporarily
The base end part of line 103.
Then, in step (B), make pipe 114 rise and open the reception ware 112 closed by pipe 114
Bottom surface opening 113, and then from receive ware 112 to lead installing hole 102 import copper powder 111, because
This, the gap filling copper powder 111 between the base end part and lead installing hole 102 of lead 103.
Then, in step (C), pipe 114 is made to decline and close reception ware 112 by pipe 114 again
Opening 113, so as to stop from receive ware 112 to lead installing hole 102 import copper powder 111.
And, in step (D), decline pipe 114, and the top of pipe 114 is pacified by voltage lead wires
Fill the copper powder 111 in hole 102 and carry out pressurization compression, hereafter, in step (E), make pipe again
114 rise and extract from lead installing hole 102.Through a series of step (A)～(E), will draw
The base end part of line 103 is fixed in the lead installing hole 102 of body of the brush 101.
Patent documentation 1：Japanese Unexamined Patent Publication 2006-50772 publications
Patent documentation 2：Japanese Unexamined Patent Publication 2008-154453 publications
Patent documentation 3：Japanese Unexamined Patent Publication 2011-50142 publications
The content of the invention
Due to utilize the conventional processing of drill bit 100 lead installing hole 102 be shaped as it is straight, so drawing
The base end part of line 103 is difficult to be blocked by the inwall of lead installing hole 102.Therefore, pressurization compression copper powder 111
And the fixing force when base end part of lead 103 is fixed on body of the brush 101 is low, so as to easily from lead
Installing hole 102 departs from.On the other hand, if strong pressurizing copper powder 111 and compress, though fixing force increase,
But there is the breakage because of high plus-pressure of body of the brush 101.
The present invention is proposed in view of the above problems, be its object is to, there is provided the processing of lead installing hole is used
Drill bit and processing method, can process the lead installing hole that lead is difficult to depart from.
Invention described in technical scheme 1 provides a kind of drill bit for machining, and the lead for processing carbon brush is installed
Hole, the carbon brush are formed in the lead installing hole of body of the brush by the base end part insertion by lead, and
Conductive powder is filled to lead installing hole carries out pressurization compression, so that lead is fixed on body of the brush
Obtained from carbon brush, the drill bit for machining is characterised by,
The top of drill main body is provided with the diameter top axle portion less than the diameter of drill main body, and
Leading edge is provided with the top axle portion, the leading edge includes top cutting edge, the first periphery cutting edge, from
The continuous second periphery cutting edge of one periphery cutting edge,
Top cutting edge, the first periphery cutting edge and the second periphery cutting edge are arranged on comprising drill main body
Rotation centerline datum level on, and top cutting edge is configured in the side of rotation centerline, first
Periphery cutting edge and the second periphery cutting edge are configured in the opposite side of rotation centerline,
With the inside corner portion of the inside corner portion of top cutting edge and the first periphery cutting edge in rotation
The mode connected on heart line arranges top cutting edge and the first periphery cutting edge, and in the datum level
It is interior, the angle of top cutting edge and the first periphery cutting edge into regulation,
First periphery cutting edge and the second periphery cutting edge form two of the triangle each other in predetermined angular
Side, and it is prominent to the side of the top axle portion that the top corner part of the triangle for being formed is divided from both sides.
Invention described in technical scheme 2 is on the basis of technical scheme 1, it is characterised in that
The radius x of interval y and the top axle portion between the rotation centerline and the top corner part is full
Sufficient formula：y/x≥1.9.
Invention described in technical scheme 3 is on the basis of technical scheme 1, it is characterised in that
Top cutting edge and the first periphery cutting edge angulation are 110～130 °, and the first periphery is cut
Sharpener and the second periphery cutting edge angulation are 80～100 °.
Invention described in technical scheme 4 provides a kind of processing method, a kind of processing method, for processing carbon
The lead installing hole of brush, the carbon brush are to be formed at the lead of body of the brush by the base end part insertion by lead
In installing hole, and conductive powder is filled to lead installing hole carry out pressurization compression, so that lead is solid
Carbon brush obtained from body of the brush is scheduled on, the processing method is characterised by,
Using the following drill bit for machining for processing the lead installing hole of carbon brush, the drill bit for machining sets
It is set to：
The top of drill main body is provided with the diameter top axle portion less than the diameter of drill main body, and
Leading edge is provided with the top axle portion, the leading edge includes top cutting edge, the first periphery cutting edge, from
The continuous second periphery cutting edge of one periphery cutting edge,
Top cutting edge, the first periphery cutting edge and the second periphery cutting edge are arranged on comprising drill main body
Rotation centerline datum level on, and top cutting edge is configured in the side of rotation centerline, first
Periphery cutting edge and the second periphery cutting edge are configured in the opposite side of rotation centerline,
With the inside corner portion of the inside corner portion of top cutting edge and the first periphery cutting edge in rotation
The mode connected on heart line arranges top cutting edge and the first periphery cutting edge, and in the datum level
It is interior, the angle of top cutting edge and the first periphery cutting edge into regulation,
First periphery cutting edge and the second periphery cutting edge form the triangle of the angle each other in regulation
Both sides, and it is prominent to the side of the top axle portion that the top corner part of the triangle for being formed is divided from both sides；
The processing method has following operation：
Decline operation, the decrease speed for making drill bit for machining rotate to specify relative to body of the brush
Decline,
Stop operation, when drill bit for machining drops to the depth of regulation relative to body of the brush, use processing
Drill bit continues rotation but stops declining,
Rise operation, and then stop operation, drill bit for machining is rotated with than decrease speed
The fast rate of climb rises.
According to the present invention of technical scheme 1, the top ends of main body are provided with diameter less than the diameter of main body
Top axle portion, on top, axle portion is provided with the first periphery cutting edge and the second periphery cutting edge, and
One periphery cutting edge and the second periphery cutting edge form the both sides of the triangle of the angle each other in regulation, and
The top corner part that the triangle for being formed is divided from both sides is prominent to the side of the top axle portion, therefore, with plus
The rotation of work drill bit, top axle portion are vibrated and are rotated.
Therefore, in the decline operation of the invention of technical scheme 4, with the decline of drill bit for machining, pass through
Top cutting edge cuts out straight hole on body of the brush, and is cut by the first triangle periphery
Sharpener and the second periphery cutting edge, cut out the helicla flute of the inwall extension along straight hole.
According to the invention of technical scheme 4, in operation is stopped, state of the drill bit for machining to stop lifting
Rotation, therefore, form expanding in the bottom of straight hole by the first periphery cutting edge and the second periphery cutting edge
Portion, the internal diameter of the wide diameter portion are bigger than spiral fluted external diameter.
Used with processing by the spiral fluted spacing formed by the first periphery cutting edge and the second periphery cutting edge
The rising or falling speed of drill bit accelerates and becomes big.Also, spiral fluted spacing is bigger, top axle portion is got over to axle center
Side significantly vibrates, therefore, spiral fluted external diameter diminishes.On the other hand, if the lifting of drill bit for machining
Slow, spiral fluted spacing diminishes, the vibration to the center axis of top axle portion diminishes, therefore, spiral shell
The external diameter of spin slot becomes big.In operation is risen, drill bit is risen with the rate of climb faster than decrease speed, because
This, in operation is risen along straight hole the spiral fluted gap ratio that formed of inwall in operation is declined institute
The spiral fluted spacing of formation is big.Therefore, even if declining the part of the spiral fluted formed in operation
It is damaged in operation is risen, but major part retained.
So, by using the drill bit for machining of the present invention via decline operation, stopping operation, rising work
Sequence is processing body of the brush so that lead installing hole is processed on body of the brush, the lead installing hole with from
The surface of body of the brush enters internal straight hole, the helicla flute that the inwall along straight hole extends, formation as the crow flies
In the bottom of straight hole and the internal diameter wide diameter portion bigger than spiral fluted external diameter.
Conductive powder is filled in the lead installing hole of the base end part insert structure by lead and to around which,
When further pressurization is compressed the conductive powder of filling and lead is fixed in lead installing hole, due to lead
Base end part is blocked by helicla flute and wide diameter portion, so lead is difficult to from lead installing hole depart from.
According to the invention of technical scheme 2, the prominent of the side to top axle portion of top corner part becomes large-sized,
When drill bit for machining rotates, top axle portion is easily vibrated.
According to the invention of technical scheme 3, in processing, spiral fluted shape is difficult to avalanche.Additionally, the
One periphery cutting edge and triangle formed by the second periphery cutting edge hold positioned at when drill bit for machining rotates
The position for easily vibrating.
Description of the drawings
Fig. 1 is the side of the drill bit for machining of the lead installing hole of the carbon brush for illustrating one embodiment of the present of invention
View.
Fig. 2 is the front view for illustrating same drill bit for machining.
Fig. 3 is the processing side of the lead installing hole of the carbon brush for schematically showing one embodiment of the present of invention
The explanatory diagram of method.
Fig. 4 is the axonometric chart of an example for illustrating the lead installing hole processed using same processing method.
Fig. 5 is to schematically show lead is fixed on the lead installing hole processed using same processing method
The explanatory diagram of interior step.
Fig. 6 is the side view of the drill bit for machining of the lead installing hole for illustrating conventional.
Fig. 7 is to schematically show the lead installing hole and lead installation processed using same drill bit for machining
The explanatory diagram of device.
Fig. 8 is to schematically show lead is fixed on the lead processed using same drill bit for machining
The explanatory diagram of the step in installing hole.
The explanation of reference：
10：The drill bit for machining of lead installing hole
11：The main body of drill bit for machining
12：Top axle portion
12A：Leading edge
13：Top cutting edge
14：First periphery cutting edge
15：Second periphery cutting edge
16：Inside corner portion
17：Top corner part
20：Lead installing hole
21：Straight hole
22：Helicla flute
23：Wide diameter portion
101：Body of the brush
103：Lead
110：Lead erecting device
111：Copper powder
112：Receive ware
113：Bottom surface opening
L：Rotation centerline
S：Datum level
Specific embodiment
Below, based on the description of the drawings present invention.Figures 1 and 2 show that an enforcement for the present invention
The drill bit for machining 10 of the processing method of the lead installing hole of the carbon brush of example.In the drill bit for machining 10
The top ends of main body 11 are provided with the diameter top axle portion 12 less than the diameter of main body 11.Top axle portion
12 diameter is about the half of the diameter of main body 11.The top axle portion 12 is provided with leading edge 12A, should
Leading edge 12A includes top cutting edge 13, the first periphery cutting edge 14, connects from the first periphery cutting edge 14
The second continuous periphery cutting edge 15.
Top cutting edge 13, the first periphery cutting edge 14 and the second periphery cutting edge 15 are arranged on and include
In the datum level S of the rotation centerline L of drill main body 11.Top cutting edge 13 is arranged on center of rotation
The side of line L, the first periphery cutting edge 14 and the second periphery cutting edge 15 are arranged on rotation centerline L
Opposite side, the inner side of the inside corner portion 16 of top cutting edge 13 and the first periphery cutting edge 14 is turned
Corner 16 connects.
First periphery cutting edge 14 and the second periphery cutting edge 15 are set to, and in datum level S form three
Angular both sides and the top corner part 17 of the triangle for being formed is divided from both sides dash forward to the side of top axle portion 12
Go out.
Also, the radius x of the interval y and top axle portion 12 between rotation centerline L and top corner part 17
Size relationship be set as, meet formula：y/x≥1.9.
With top cutting edge 13 and the first periphery cutting edge 14, angulation θ 1 is in the datum level
110～130 ° of mode arranges two cutting edges 13,14.In addition, with 14 He of the first periphery cutting edge
Second periphery cutting edge 15 angulation θ 2 in the datum level S arranges two for 80～100 ° of mode
Individual cutting edge 14,15.In addition, top cutting edge 13, the first periphery cutting edge 14 and the second periphery
The relief angle of cutting edge 15 is set to 20 °.
The structure of drill bit for machining 10 is as described above, Fig. 3 is schematically shown using the processing brill
10 (A)～(E) the step of lead installing hole 20 are processed in the main body 101 of carbon brush.First,
In decline operation (A), (B), (C), drill bit for machining 10 is made relative to body of the brush 101
While being rotated with fixing speed while the decrease speed to specify declines.Also, work as drill bit for machining 10
Stop declining when dropping to the depth of regulation relative to body of the brush 101.In the stopping operation (D),
As declining operation (A)～(C), drill bit for machining 10 continues rotation.Stop operation (D)
Afterwards, the state for making drill bit for machining 10 to keep rotating rises.Processing in operation (E) is risen
It is fast with decrease speed of the rate of climb ratio of drill bit 10 in operation (A)～(C) is declined, so as to
It is enough rapidly to extract drill bit for machining 10 from body of the brush 101.
According to the present embodiment, the diameter top end shaft less than the diameter of main body is set in the top ends of main body 11
Portion 12, on top, axle portion 12 arranges the first periphery cutting edge 14 and the second periphery cutting edge 15, and
First periphery cutting edge 14 and the second periphery cutting edge 15 form two of the triangle each other in predetermined angular
Side and divided from both sides the triangle for being formed top corner part 17 it is prominent to the side of top axle portion 12, therefore,
With the rotation of drill bit for machining 10, top axle portion 12 is vibrated and is rotated.Therefore, with step (A)～
(C) decline of the drill bit for machining 10 in, is cut on body of the brush 101 by top cutting edge 13
Processing straight hole 21, and pass through 15 machining edge of the first periphery cutting edge 14 and the second periphery cutting edge
The helicla flute 22 that the inwall of straight hole 21 extends.Also, in operation (D) is stopped, processing is bored
10 to keep stopping the state rotation of lifting, therefore, by the first periphery cutting edge 14 and second outside
All cutting edges 15 form wide diameter portion 23 in the bottom of straight hole 21, and the internal diameter of the wide diameter portion 23 compares helicla flute
22 external diameter is big.Fig. 4 shows the shape of the lead installing hole 20 processed using drill bit for machining 10
One example.
The spacing of the helicla flute 22 formed by the first periphery cutting edge 14 and the second periphery cutting edge 15
Accelerating with the rising or falling speed of drill bit for machining 10 and becoming big.Also, the spacing of helicla flute 22 is bigger, then
The external diameter of helicla flute 22 is less.On the other hand, if the rising or falling speed of drill bit for machining 10 is slack-off, spiral shell
The spacing of spin slot 22 diminishes, as a result, the external diameter of helicla flute 22 becomes big.In operation is risen, processing
Risen with the rate of climb faster than decrease speed with drill bit 10, therefore, along straight hole in operation is risen
The gap ratio of the helicla flute 22 formed by 21 inwall is declining between the helicla flute 22 formed in operation
Away from big.Therefore, even if a part for the helicla flute 22 formed in decline operation is in operation is risen
Breakage, but major part retained.
As described above, by using the present embodiment drill bit for machining 10 via decline operation (A),
(B), (C), the step of stop operation (D), rise operation (E) processing body of the brush
101 so that lead installing hole 20 is processed on body of the brush 101, the lead installing hole 20 has
Internal straight hole 21 is entered as the crow flies from the surface of body of the brush 101, along the inwall extension of straight hole 21
Helicla flute 22, the bottom for the being formed in straight hole 21 and internal diameter wide diameter portion bigger than the internal diameter of straight hole 21
23。
Then, illustrate fixed in the lead installing hole 20 processed using drill bit for machining 10 based on Fig. 5
The step of lead 103.First, make under the pipe 114 of insertion leaded 103 in insertion operation (A)
Drop, and make pipe 114 enter lead installing hole 20, and then the lead 103 that will be projected from the top of pipe 114
Base end part be pressed against lead installing hole 20 bottom wide diameter portion 23, so as to interim formed leads 103
Base end part.Then, in filling work procedure (B), (C), (D), pipe 114 is made to increase, and
Open the opening 113 of the bottom surface of the reception ware 112 closed by pipe 114, and then from receiving ware 112 to drawing
Line installing hole 20 imports copper powder 111, so as to the gap between lead 103 and lead installing hole 20 is filled out
Copper powder 111 is filled, after copper powder 111 of ormal weight are filled, declines pipe 114 again, and utilize pipe 114
Closing receives the opening 113 of ware 112, so as to stop that copper is imported from reception ware 112 to lead installing hole 20
Powder 111.Then, in fixed work order (E), further decline pipe 114, on the top for making pipe 114
End and side face press copper powder 111 and after the compression copper powder 111 that pressurizes, pipe 114 is risen and is installed from lead
Hole 20 is extracted, so as to be fixed on the base end part of lead 103 in the lead installing hole 20 of body of the brush 101.
As the base end part of lead 103 is blocked by helicla flute 22 and wide diameter portion 23, so being difficult to from lead install
Hole 20 departs from.
Claims (4)
1. a kind of drill bit for machining, for processing the lead installing hole of carbon brush, the carbon brush is, by will
The base end part insertion of lead is formed in the lead installing hole of body of the brush, and conductive powder is filled to lead
Pressurization compression is carried out after installing hole, so that lead is fixed on carbon brush obtained from body of the brush, the processing
It is characterised by with drill bit,
The top of drill main body is provided with the diameter top axle portion less than the diameter of drill main body, and
Leading edge is provided with the top axle portion, the leading edge includes top cutting edge, the first periphery cutting edge, from
The continuous second periphery cutting edge of one periphery cutting edge,
Top cutting edge, the first periphery cutting edge and the second periphery cutting edge are arranged on comprising drill main body
Rotation centerline datum level on, and top cutting edge is configured in the side of rotation centerline, first
Periphery cutting edge and the second periphery cutting edge are configured in the opposite side of rotation centerline,
With the inside corner portion of the inside corner portion of top cutting edge and the first periphery cutting edge in rotation
The mode connected on heart line arranges top cutting edge and the first periphery cutting edge, and in the datum level
It is interior, the angle of top cutting edge and the first periphery cutting edge into regulation,
First periphery cutting edge and the second periphery cutting edge form two of the triangle each other in predetermined angular
Side, and it is prominent to the side of the top axle portion that the top corner part of the triangle for being formed is divided from both sides.
2. drill bit for machining as claimed in claim 1, it is characterised in that
The radius x of interval y and the top axle portion between the rotation centerline and the top corner part is full
Sufficient formula：y/x≥1.9.
3. drill bit for machining as claimed in claim 1, it is characterised in that
Top cutting edge and the first periphery cutting edge angulation are 110～130 °, and the first periphery is cut
Sharpener and the second periphery cutting edge angulation are 80～100 °.
4. a kind of processing method, for processing the lead installing hole of carbon brush, the carbon brush is, by drawing
The base end part insertion of line is formed in the lead installing hole of body of the brush, and conductive powder is filled to lead peace
Dress carries out pressurization compression behind hole, so that lead is fixed on carbon brush obtained from body of the brush, the processing side
Method is characterised by,
Using the following drill bit for machining for processing the lead installing hole of carbon brush, the drill bit for machining sets
It is set to：
The top of drill main body is provided with the diameter top axle portion less than the diameter of drill main body, and
Leading edge is provided with the top axle portion, the leading edge includes top cutting edge, the first periphery cutting edge, from
The continuous second periphery cutting edge of one periphery cutting edge,
Top cutting edge, the first periphery cutting edge and the second periphery cutting edge are arranged on comprising drill main body
Rotation centerline datum level on, and top cutting edge is configured in the side of rotation centerline, first
Periphery cutting edge and the second periphery cutting edge are configured in the opposite side of rotation centerline,
With the inside corner portion of the inside corner portion of top cutting edge and the first periphery cutting edge in rotation
The mode connected on heart line arranges top cutting edge and the first periphery cutting edge, and in the datum level
It is interior, the angle of top cutting edge and the first periphery cutting edge into regulation,
First periphery cutting edge and the second periphery cutting edge form the triangle of the angle each other in regulation
Both sides, and it is prominent to the side of the top axle portion that the top corner part of the triangle for being formed is divided from both sides；
The processing method has following operation：
Decline operation, the decrease speed for making drill bit for machining rotate to specify relative to body of the brush
Decline,
Stop operation, when drill bit for machining drops to the depth of regulation relative to body of the brush, make to add
Work drill bit continues rotation but stops declining,
Rise operation, and then stop operation, drill bit for machining is rotated with than decrease speed
The fast rate of climb rises.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015184641A JP6091572B1 (en) | 2015-09-18 | 2015-09-18 | Drill and processing method for carbon brush lead wire mounting hole |
| JP2015-184641 | 2015-09-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106541168A true CN106541168A (en) | 2017-03-29 |
| CN106541168B CN106541168B (en) | 2018-09-25 |
Family
ID=58261836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933184.1A Active CN106541168B (en) | 2015-09-18 | 2015-12-15 | Drill bit for machining and processing method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6091572B1 (en) |
| CN (1) | CN106541168B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952597A (en) * | 2018-07-24 | 2018-12-07 | 邹城兖矿泰德工贸有限公司 | Erosion control drill rod special |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60132170U (en) * | 1984-02-10 | 1985-09-04 | 日立化成工業株式会社 | electric brush |
| JPH04164509A (en) * | 1990-10-24 | 1992-06-10 | Kenji Yamamoto | Drill having no chisel edge |
| JP2001252826A (en) * | 2000-03-06 | 2001-09-18 | Honda Motor Co Ltd | Threading method and spot facing method |
| JP2002224907A (en) * | 2001-01-29 | 2002-08-13 | Ibiden Co Ltd | Drilling drill and drilling method |
| JP2006050772A (en) * | 2004-08-04 | 2006-02-16 | Hitachi Chem Co Ltd | Electric brush |
| JP2008154453A (en) * | 2008-01-30 | 2008-07-03 | Totan Kako Kk | Carbon brush for electric machine and electric motor for vacuum cleaners |
| CN201102088Y (en) * | 2007-04-18 | 2008-08-20 | 张茂治 | Machining tool bit for circuit board wire lead slot |
| JP2011050142A (en) * | 2009-08-26 | 2011-03-10 | Aupack Co Ltd | Carbon brush and method of manufacturing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2576384Y2 (en) * | 1991-02-15 | 1998-07-09 | 東芝タンガロイ株式会社 | Gun drill |
-
2015
- 2015-09-18 JP JP2015184641A patent/JP6091572B1/en active Active
- 2015-12-15 CN CN201510933184.1A patent/CN106541168B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60132170U (en) * | 1984-02-10 | 1985-09-04 | 日立化成工業株式会社 | electric brush |
| JPH04164509A (en) * | 1990-10-24 | 1992-06-10 | Kenji Yamamoto | Drill having no chisel edge |
| JP2001252826A (en) * | 2000-03-06 | 2001-09-18 | Honda Motor Co Ltd | Threading method and spot facing method |
| JP2002224907A (en) * | 2001-01-29 | 2002-08-13 | Ibiden Co Ltd | Drilling drill and drilling method |
| JP2006050772A (en) * | 2004-08-04 | 2006-02-16 | Hitachi Chem Co Ltd | Electric brush |
| CN201102088Y (en) * | 2007-04-18 | 2008-08-20 | 张茂治 | Machining tool bit for circuit board wire lead slot |
| JP2008154453A (en) * | 2008-01-30 | 2008-07-03 | Totan Kako Kk | Carbon brush for electric machine and electric motor for vacuum cleaners |
| JP2011050142A (en) * | 2009-08-26 | 2011-03-10 | Aupack Co Ltd | Carbon brush and method of manufacturing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952597A (en) * | 2018-07-24 | 2018-12-07 | 邹城兖矿泰德工贸有限公司 | Erosion control drill rod special |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017056530A (en) | 2017-03-23 |
| CN106541168B (en) | 2018-09-25 |
| JP6091572B1 (en) | 2017-03-08 |
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