CN203973600U - A kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter - Google Patents
A kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter Download PDFInfo
- Publication number
- CN203973600U CN203973600U CN201420463955.6U CN201420463955U CN203973600U CN 203973600 U CN203973600 U CN 203973600U CN 201420463955 U CN201420463955 U CN 201420463955U CN 203973600 U CN203973600 U CN 203973600U
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- cutting tool
- groove
- pcb board
- short circuit
- avoid
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Abstract
The utility model discloses and a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, comprise discoid body and multiple cutters tooth of being located at body periphery, it is characterized in that, the neighboring of described body is also provided with several grooves, described groove is that body part forms to central concave vertically, cup depth is the 12-20% of body thickness, and groove is towards the radially outside opening of a side of body outer rim.Discoid rotary cutting tool of the present utility model is set up the groove of circumferential distribution on body, thereby utilizes groove metallic foreign body to be taken out of to product finedraw in cutting process, ensures pcb board quality, can normally work.The 12-20% that groove special design cup depth is body thickness, can take into account and hold the space of metallic foreign body and the intensity of body, and groove is towards the radially outside opening of a side of body outer rim, and the metallic foreign body that can better guide body outer rim, flies out along cutting tool direction of rotation enters groove.
Description
Technical field
The utility model relates to a kind of rotary cutter, belongs to cutting tool technical field.
Background technology
Pcb board is mainly combined into by fiberboard and metal crimp conventionally, therefore, in cutting process, understand kish foreign matter, and these residual metals just easily causes product short circuit phenomenon, therefore can greatly reduce the qualification rate of pcb board in the cutting seam of product.Existing cutting tool adds man-hour to pcb board, and these metallic foreign bodies are chip, particle and wire drawing for example, is difficult to be removed.
Summary of the invention
A kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, comprise discoid body and multiple cutters tooth of being located at body periphery, it is characterized in that, the neighboring of described body is also provided with several grooves, described groove is that body part forms to central concave vertically, cup depth is the 12-20% of body thickness, and groove is towards the radially outside opening of a side of body outer rim.
Preferably, described cutting tool at least comprises three pairs of respective grooves and cutters tooth one by one, and corresponding groove is arranged on the rear of corresponding cutter tooth along cutting tool direction of rotation.
Preferably, circumferentially uniform 16 described grooves of described body.
Preferably, described groove comprises first, second sidewall radially, and the inner of described the first side wall tilts to the rear of cutting tool direction of rotation with respect to the first side wall outer end, and described the second sidewall is perpendicular to cutting tool direction of rotation.
Preferably, the inner side of described the second sidewall is provided with jagged assisted parts.
Preferably, described assisted parts comprises some sawtooth, and the tip of described sawtooth is towards the front of cutting tool direction of rotation.
Preferably, the both sides of described body all arrange described groove, and the groove of body both sides is in circumferential misalignment setting.
The beneficial effect that the utility model reaches:
1. discoid rotary cutting tool of the present utility model is set up the groove of circumferential distribution on body, thereby utilizes groove metallic foreign body to be taken out of to product finedraw in cutting process, ensures pcb board quality, can normally work.The 12-20% that groove special design cup depth is body thickness, can take into account and hold the space of metallic foreign body and the intensity of body, and groove is towards the radially outside opening of a side of body outer rim, and the metallic foreign body that can better guide body outer rim, flies out along cutting tool direction of rotation enters groove.
Groove is corresponding with cutter tooth 2., and be located at cutter tooth rear, the metallic foreign body that each cutter tooth cutting is produced not only can be drained between adjacent two cutters tooth, and can enter groove, drain from groove along direction of rotation correspondence.Because the mode effect of space scrap fallaway between existing simple dependence cutter tooth is limited, pcb board requires high again to the discharge of metal object, and therefore arranging of groove can be discharged metallic foreign body to a greater extent, ensures pcb board quality.
3. circumferential uniform 16 grooves of body, reach 90% to the effect of discharging metallic foreign body.
4. groove the first side wall is arranged to the inner rear inclination to cutting tool direction of rotation with respect to outer end, thereby form an angle with place place diameter shape, the metallic foreign body flying out for body outer rim, along cutting tool direction of rotation provides the entrance of certain slope, guiding enters groove, the second sidewall arranges perpendicular to cutting tool direction of rotation simultaneously, and the rotation by the metallic foreign body dependence cutting tool of collecting in groove that can be fast the most best throws away body.
5. the inner side of the second sidewall arranges jagged assisted parts, can better catch on metal wire-drawing, some and PCB is inlayed to wire comparatively closely and also can thoroughly take off and discharge.Especially the tip of assisted parts sawtooth is towards the front of cutting tool direction of rotation, best results.
6. the both sides of body all arrange groove, can further collect and discharge the metallic foreign body of falling body both sides, and the groove of body both sides is in circumferential misalignment setting, can better ensure body intensity.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the enlarged diagram of local A shown in Fig. 1;
Fig. 3 is the schematic diagram of groove in body thickness direction.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As Figure 1-3, a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, comprise discoid body 2 and be located at 16 cutters tooth 4 of body 2 peripheries.The neighboring of body 2 is also provided with 16 circumferential uniform grooves 6, and groove 6 forms to central concave vertically for body 2 parts, and cup depth d is the 12-20% of body 2 thickness D, and groove 6 is towards the radially outside opening of a side of body 2 outer rims.
16 grooves 6 and cutter tooth 4 are corresponding one by one, and corresponding groove 6 is arranged on the rear of corresponding cutter tooth 4 along cutting tool direction of rotation Fn.Groove 6 comprise radially first, the second sidewall 62, 64, the inner of the first side wall 62 tilts to the rear of cutting tool direction of rotation with respect to the first side wall 62 outer ends, the second 64 of sidewalls are perpendicular to cutting tool direction of rotation Fn, the first side wall 62 is 30-60 ° with respect to the inclination alpha of the second sidewall 64, be conducive to for body 2 outer rims, the metallic foreign body flying out along cutting tool direction of rotation provides the entrance of certain slope, guiding enters groove 6, the second sidewall 64 arranges perpendicular to cutting tool direction of rotation simultaneously, the rotation by the metallic foreign body dependence cutting tool of collecting in groove 6 that can be fast the most best throws away body 2.The first side wall 62 can be also the shape (not shown) to center position depression at body 2 plane arcs, thereby can better catch metallic foreign body, produces cut product just metallic foreign body is discharged to body 2, prevents that its part from falling in switchback seam in advance.
In addition, the inner side of the second sidewall 64 is also provided with jagged assisted parts.Concrete, assisted parts comprises some sawtooth 642, the tip of sawtooth 642 is towards the front of cutting tool direction of rotation.Can better catch on metal wire-drawing, some and PCB be inlayed to wire comparatively closely and also can thoroughly take off and discharge.Especially the tip of assisted parts sawtooth 642 is towards the front of cutting tool direction of rotation, best results.
The both sides of body 2 arrange respectively 16 grooves 6, and the groove 6 of body 2 both sides is in circumferential misalignment setting.Further collect and discharge and fall the metallic foreign body of body 2 both sides, and better ensureing body 2 intensity, increasing the service life.
Need to illustrate, Fig. 1 only shows a cutter tooth 4 at a body 2 both sides groove 6 of correspondence respectively, and in fact body 2 is being provided with groove 6 corresponding to the both sides of each cutter tooth 4 positions, and the every side of body 2 arranges 16 grooves 6.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (7)
1. can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter for one kind, comprise discoid body and multiple cutters tooth of being located at body periphery, it is characterized in that, the neighboring of described body is also provided with several grooves, described groove is that body part forms to central concave vertically, cup depth is the 12-20% of body thickness, and groove is towards the radially outside opening of a side of body outer rim.
2. according to claim 1ly a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, it is characterized in that, at least comprise three pairs of respective grooves and cutters tooth one by one, corresponding groove is arranged on the rear of corresponding cutter tooth along cutting tool direction of rotation.
3. according to claim 1ly a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, it is characterized in that, described body is uniform 16 described grooves circumferentially.
4. according to claim 1ly a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, it is characterized in that, described groove comprises first, second sidewall radially, the inner of described the first side wall tilts to the rear of cutting tool direction of rotation with respect to the first side wall outer end, and described the second sidewall is perpendicular to cutting tool direction of rotation.
5. according to claim 4ly a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, it is characterized in that, the inner side of described the second sidewall is provided with jagged assisted parts.
6. according to claim 5ly a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, it is characterized in that, described assisted parts comprises some sawtooth, and the tip of described sawtooth is towards the front of cutting tool direction of rotation.
7. according to claim 1ly a kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter, it is characterized in that, the both sides of described body all arrange described groove, and the groove of body both sides is in circumferential misalignment setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420463955.6U CN203973600U (en) | 2014-08-18 | 2014-08-18 | A kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420463955.6U CN203973600U (en) | 2014-08-18 | 2014-08-18 | A kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203973600U true CN203973600U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420463955.6U Expired - Fee Related CN203973600U (en) | 2014-08-18 | 2014-08-18 | A kind ofly can avoid the cutting tool of pcb board because of the short circuit of kish foreign matter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203973600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191441A (en) * | 2014-08-18 | 2014-12-10 | 苏州凯锝微电子有限公司 | Cutting tool capable of protecting PCB against short circuits caused by residual metal foreign matter |
-
2014
- 2014-08-18 CN CN201420463955.6U patent/CN203973600U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191441A (en) * | 2014-08-18 | 2014-12-10 | 苏州凯锝微电子有限公司 | Cutting tool capable of protecting PCB against short circuits caused by residual metal foreign matter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150818 |
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| EXPY | Termination of patent right or utility model |