CN202147039U - RDC (remote data control) chip-breaking knife - Google Patents
RDC (remote data control) chip-breaking knife Download PDFInfo
- Publication number
- CN202147039U CN202147039U CN201120138301U CN201120138301U CN202147039U CN 202147039 U CN202147039 U CN 202147039U CN 201120138301 U CN201120138301 U CN 201120138301U CN 201120138301 U CN201120138301 U CN 201120138301U CN 202147039 U CN202147039 U CN 202147039U
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- chip
- knife
- rdc
- cutter
- breaking
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Abstract
The utility model discloses an RDC (remote data control) chip-breaking knife which comprises a knife handle, wherein a knife head is fixed at the left end of the knife handle; the knife head is provided with a spiral inner groove; the upper side and the lower side of the top end of the knife head are respectively provided with a chip-breaking groove; the chip-breaking grooves are concave grooves; the lengths of the chip-breaking grooves rang from 2.0mm to 2.5 mm; and synchronously, the groove bottoms on the left sides and the right sides of the chip-breaking grooves have the same lengths and are further symmetrical. The main knife surfaces of the RDC chip-breaking knife adopt an overlapping design; further, the main knife surfaces of the knife head are respectively provided with one chip-breaking groove; therefore, under the conditions of the high speed and the high feed of a large-size drilling bit, chips can be broken first, and then, are discharged; the phenomenon that the long chips are wound on a knife is avoided, so that the chips are discharged smoothly; therefore, not only the service life of a cutter is prolonged, but also the common phenomenon that the tail of a ditch is wound by the chip is effectively improved.
Description
Technical field
The utility model relates to PCB printed circuit drilling machine dedicated tool technical field, concrete relates to a kind of RDC chip breaking cutter.
Background technology
In the production of PCB circuit, the PCB circuit board twines bits when using big bit bore serious, brings the inconvenience in a lot of productions, in order to overcome this defective, needs the RDC chip-breaking drill bit of the good and rapid heat dissipation of a kind of chip removal.
The utility model content
The purpose of the utility model is to solve the problem that exists in the prior art, and a kind of RDC chip breaking cutter that common ditch tail twines the bits phenomenon that improved is provided.
The utility model is achieved through following technical scheme:
A kind of RDC chip breaking cutter comprises handle of a knife, and the handle of a knife left end is fixed with cutter head, and cutter head is provided with the spiral inside groove; The both sides up and down on cutter head top respectively have a chip-breaker.
The diameter of handle of a knife is 3.175mm.
Chip-breaker is a groove; The length range of chip-breaker is 2.0mm～2.5mm; Simultaneously, the bottom land degree of depth of chip-breaker left and right sides is identical and symmetrical.
The spiral inside groove is a groove, and the angle of rifling of spiral inside groove is 30 ° simultaneously.
The limit cutter of cutter head is wide to be 0.28mm; Simultaneously, the main cutting angle of the limit cutter of cutter head is 10 °, and the inferior cutting angle of the limit cutter of cutter head is 30 °; In addition, the diameter of cutter head is 4.1mm; Cutter head length is 12mm; The heart on cutter head top is thick to be 0.45mm.
The angle of the drill point angle of cutter head is 165 °; The terminal length of the top of cutter head to handle of a knife is 38.1mm.
The utility model usefulness is:
The RDC chip breaking cutter winner knife face of the utility model adopts overlapping design, and respectively opens a chip-breaker at cutter head operator face place, like this; The large scale drill bit is under the condition of high-speed, high feeding; Can accomplish chip removal after the first chip breaking, avoid long bits to twine the cutter phenomenon, make chip removal smooth and easy; So not only can increase the service life of cutter, and improve common ditch tail effectively and twine the bits phenomenon.
Description of drawings
To combine embodiment and accompanying drawing that the utility model is done further to describe in detail below:
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the limit cutter sketch map of the cutter head of the utility model.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Like Fig. 1～a kind of RDC drill bit shown in Figure 3, comprise handle of a knife 1, handle of a knife 1 left end is fixed with cutter head 2, and cutter head 2 is provided with spiral inside groove 4; The both sides up and down on cutter head 2 tops respectively have a chip-breaker 3.
Chip-breaker 3 is a groove; The length range of chip-breaker 3 is 2.0mm～2.5mm; The bottom land degree of depth of chip-breaker 3 left and right sides is identical and symmetrical.
Spiral inside groove 4 is a groove, and the angle of rifling A3 of spiral inside groove 4 is 30 °, and-2 °～+ 2 ° deviation can be arranged in practical application.
The limit cutter of cutter head 2 is wide to be 0.28mm, the margin of tolerance in its practical application is-and 0.08mm～+ 0.08mm; The main cutting angle A1 of the limit cutter of cutter head 2 is 12 °; The inferior cutting angle A2 of the limit cutter of cutter head 2 is 30 °.
The diameter of handle of a knife 1 is 3.175mm, the margin of tolerance in its practical application is-and 0.001mm～-0.008mm.
The diameter of cutter head 2 is 4.1mm, the margin of tolerance in its practical application is-and 0.01mm～+ 0.01mm.
The thick R1 of the heart on cutter head 2 tops is 0.45mm, the margin of tolerance in its practical application is-and 0.08mm～+ 0.08mm.
The length of cutter head 2 is 12mm, the margin of tolerance in its practical application is 0～+ 0.08mm.
The angle A 4 of the drill point angle of cutter head 2 is 165 °, can have in the practical application ± 2 ° deviation.
The terminal length of the top of cutter head 2 to handle of a knife 1 is 38.1mm, the margin of tolerance in its practical application is-and 0.1mm～+ 0.2mm.
In the middle of using, through actual measurement, the life-span of the drill bit of the utility model is compared prior art increases by 30%.
Claims (10)
1. a RDC chip breaking cutter comprises handle of a knife (1), and handle of a knife (1) left end is fixed with cutter head (2), it is characterized in that cutter head (2) is provided with spiral inside groove (4); The both sides up and down on cutter head (2) top respectively have a chip-breaker (3); Chip-breaker (3) is a groove, and the bottom land degree of depth of chip-breaker (3) left and right sides is identical and symmetrical simultaneously.
2. RDC chip breaking cutter according to claim 1, the length range that it is characterized in that described chip-breaker (3) is 2.0mm～2.5mm.
3. RDC chip breaking cutter according to claim 1 is characterized in that described spiral inside groove (4) is a groove, and the angle of rifling of spiral inside groove (4) is 30 ° simultaneously.
4. RDC chip breaking cutter according to claim 1 is characterized in that the limit cutter of described cutter head (2) is wide and is 0.28mm; Simultaneously, the main cutting angle of the limit cutter of cutter head (2) is 10 °, and the inferior cutting angle of the limit cutter of cutter head (2) is 30 °.
5. RDC chip breaking cutter according to claim 1, the diameter that it is characterized in that described cutter head (2) is 4.1mm.
6. RDC chip breaking cutter according to claim 1, the diameter that it is characterized in that described handle of a knife (1) is 3.175mm.
7. RDC chip breaking cutter according to claim 1 is characterized in that the heart on described cutter head (2) top is thick and is 0.45mm.
8. RDC chip breaking cutter according to claim 1, the length that it is characterized in that described cutter head (2) is 12mm.
9. RDC chip breaking cutter according to claim 1, the angle that it is characterized in that the drill point angle of described cutter head (2) is 165 °.
10. RDC chip breaking cutter according to claim 1 is characterized in that the terminal length of top to handle of a knife (1) of described cutter head (2) is 38.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120138301U CN202147039U (en) | 2011-05-04 | 2011-05-04 | RDC (remote data control) chip-breaking knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120138301U CN202147039U (en) | 2011-05-04 | 2011-05-04 | RDC (remote data control) chip-breaking knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202147039U true CN202147039U (en) | 2012-02-22 |
Family
ID=45588114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120138301U Expired - Lifetime CN202147039U (en) | 2011-05-04 | 2011-05-04 | RDC (remote data control) chip-breaking knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202147039U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071834A (en) * | 2013-01-21 | 2013-05-01 | 深圳市金洲精工科技股份有限公司 | Special ID (Inverse Drill)-type extra-large drill bit for PCB (Printed Circuit Board) and manufacturing method of special ID-type extra-large drill bit |
| CN104874826A (en) * | 2015-05-04 | 2015-09-02 | 深圳崇达多层线路板有限公司 | Drilling method of thick copper circuit board |
| CN108526551A (en) * | 2018-05-03 | 2018-09-14 | 广东鼎泰高科精工科技有限公司 | A kind of drill bit used for printed circuit board |
-
2011
- 2011-05-04 CN CN201120138301U patent/CN202147039U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071834A (en) * | 2013-01-21 | 2013-05-01 | 深圳市金洲精工科技股份有限公司 | Special ID (Inverse Drill)-type extra-large drill bit for PCB (Printed Circuit Board) and manufacturing method of special ID-type extra-large drill bit |
| CN103071834B (en) * | 2013-01-21 | 2015-05-20 | 深圳市金洲精工科技股份有限公司 | Special ID (Inverse Drill)-type extra-large drill bit for PCB (Printed Circuit Board) and manufacturing method of special ID-type extra-large drill bit |
| CN104874826A (en) * | 2015-05-04 | 2015-09-02 | 深圳崇达多层线路板有限公司 | Drilling method of thick copper circuit board |
| CN104874826B (en) * | 2015-05-04 | 2017-12-26 | 深圳崇达多层线路板有限公司 | A kind of drilling preparation method of thick copper circuit board |
| CN108526551A (en) * | 2018-05-03 | 2018-09-14 | 广东鼎泰高科精工科技有限公司 | A kind of drill bit used for printed circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |
|
| CX01 | Expiry of patent term |