CN202934433U - Grinding wheel for printed circuit board (PCB) cutter semi-finished product excircle segment difference - Google Patents
Grinding wheel for printed circuit board (PCB) cutter semi-finished product excircle segment difference Download PDFInfo
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- CN202934433U CN202934433U CN2012202839351U CN201220283935U CN202934433U CN 202934433 U CN202934433 U CN 202934433U CN 2012202839351 U CN2012202839351 U CN 2012202839351U CN 201220283935 U CN201220283935 U CN 201220283935U CN 202934433 U CN202934433 U CN 202934433U
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Abstract
TheProvided is a grinding wheel for printed circuit board (PCB) cutter semi-finished product excircle segment difference. The shape of a base body in the grinding wheel is changed, the shape of the bottom of an abrasive material layer is matched with a knife-edge part at the front end of a PCB cutter and the shape of a front chamfer, the abrasive material layer can be fully utilized, so that cost is reduced, and efficiency is improved simultaneously.
Description
Technical field
The utility model relates to carbide alloy PCB tool grinding processing, the particularly poor means of abrasion of PCB cutter cylindrical section.
Background technology
Along with the PCB industrial expansion, the lifting of PCB cutter use amount, the use amount of PCB tool lapping emery wheel is also increasing, requires also more and more highlyer, and existing standard 3A1 and 1A1 abrasive wheel are applied in the cylindricalo grinding of cutter semi-finished product, because need the relation of the front chamfering of finishing, use abrasive material at approximately 3/5 o'clock, and just needed to change emery wheel, cause the significant wastage of skive, the frequency of changing simultaneously emery wheel is higher, has a strong impact on production efficiency.
Summary of the invention
The purpose of this utility model is to provide the poor grinding wheel of a kind of PCB cutter semi-finished product cylindrical section, and abrasive material can be fully used, thereby realizes the saving of cost, simultaneously raising efficiency.
For achieving the above object, solution of the present utility model is:
The poor grinding wheel of a kind of PCB cutter semi-finished product cylindrical section, the abrasive material that it has the matrix of annular and is positioned at the matrix periphery, it is characterized in that: by changing the shape of emery wheel inner base, make the shape of abrasive material bottom identical with PCB cutter tip end cutting and front chamfer shape.
The alteration of form of emery wheel inner base be grinding wheel base body to have an angle be that the 20 degree length of sides are the 2MM chamfering, and suitably increase the abrasive material of chamfering same volume accumulated amount.
Profitable effect of the present utility model is: the poor grinding wheel of PCB cutter semi-finished product cylindrical section that has adopted this kind design, in the abrasive material situation of equal volume, promoted greatly the service life of emery wheel, improved the utilization rate of material, the replacement frequency of the emery wheel that reduces has improved production efficiency simultaneously.
Description of drawings
Fig. 1 standard 1A1 or 3A1 skive shape figure;
The poor grinding skive of Fig. 2 PCB cutter of the present utility model semi-finished product cylindrical section;
Schematic diagram before the processing of Fig. 3 PCB cutter semi-finished product;
Schematic diagram after Fig. 4 PCB cutter semi-finished product abrasive forming.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.
Figure 1 shows that standard 1A1 or 3A1 skive are (with reference to GB/T6409.2-2009), the abrasive material that it has the body portion of an annular and is positioned at the periphery of described matrix, described body portion is shaped as the circular of standard.
Figure 2 shows that the poor grinding skive of PCB cutter semi-finished product cylindrical section of the present utility model, the shape that it changes the emery wheel inner base makes the shape of abrasive material bottom identical with PCB cutter tip end cutting and front chamfer shape.
Concrete is that the 20 degree length of sides are the 2MM chamfering for grinding wheel base body being done an angle when emery wheel making, and the abrasive material pre-feed that suitably increases chamfering same volume accumulated amount gets final product
Claims (2)
1. poor grinding wheel of PCB cutter semi-finished product cylindrical section, the abrasive material that it has the matrix of annular and is positioned at the matrix periphery, it is characterized in that: by changing the shape of emery wheel inner base, make the shape of abrasive material bottom identical with PCB cutter tip end cutting and front chamfer shape.
2. the poor grinding wheel of PCB cutter semi-finished product cylindrical section according to claim 1 is characterized in that: the alteration of form of emery wheel inner base be grinding wheel base body to have an angle be that the 20 degree length of sides are the chamfering of 2MM, and suitably increase the abrasive material of chamfering same volume accumulated amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202839351U CN202934433U (en) | 2012-06-15 | 2012-06-15 | Grinding wheel for printed circuit board (PCB) cutter semi-finished product excircle segment difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202839351U CN202934433U (en) | 2012-06-15 | 2012-06-15 | Grinding wheel for printed circuit board (PCB) cutter semi-finished product excircle segment difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934433U true CN202934433U (en) | 2013-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202839351U Expired - Fee Related CN202934433U (en) | 2012-06-15 | 2012-06-15 | Grinding wheel for printed circuit board (PCB) cutter semi-finished product excircle segment difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934433U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300209A (en) * | 2019-12-23 | 2020-06-19 | 重庆跃进机械厂有限公司 | Valve grinding method |
| CN111673403A (en) * | 2020-05-29 | 2020-09-18 | 贵州泰和超硬工具股份有限公司 | Hard alloy twist drill rod grinding process |
| CN112605438A (en) * | 2020-11-27 | 2021-04-06 | 贵州西南工具(集团)有限公司 | Machining process of reamer with guide function |
-
2012
- 2012-06-15 CN CN2012202839351U patent/CN202934433U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300209A (en) * | 2019-12-23 | 2020-06-19 | 重庆跃进机械厂有限公司 | Valve grinding method |
| CN111673403A (en) * | 2020-05-29 | 2020-09-18 | 贵州泰和超硬工具股份有限公司 | Hard alloy twist drill rod grinding process |
| CN112605438A (en) * | 2020-11-27 | 2021-04-06 | 贵州西南工具(集团)有限公司 | Machining process of reamer with guide function |
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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: 20130515 Termination date: 20150615 |
|
| EXPY | Termination of patent right or utility model |