CN103394977A - Centerless grinding device for hard alloy bar - Google Patents
Centerless grinding device for hard alloy bar Download PDFInfo
- Publication number
- CN103394977A CN103394977A CN2013103421332A CN201310342133A CN103394977A CN 103394977 A CN103394977 A CN 103394977A CN 2013103421332 A CN2013103421332 A CN 2013103421332A CN 201310342133 A CN201310342133 A CN 201310342133A CN 103394977 A CN103394977 A CN 103394977A
- Authority
- CN
- China
- Prior art keywords
- hard alloy
- alloy bar
- wheel
- emery wheel
- swiveling
- Prior art date
- 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.)
- Granted
Links
Images
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses a centerless grinding device for a hard alloy bar. A grinding wheel-guide wheel device is simulated, the two sides of the hard alloy bar are respectively additionally provided with a rotating wheel, and the rotating wheels are same in rotating direction and staggered oppositely. The centerless grinding device is structurally characterized in that the rotating wheels are both made of soft materials (such as rubber and nylon) and arranged on the two sides of a workpiece, so that when the hard alloy bar enters the grinding wheel-guide wheel device through an automatic electromagnetism feeding device, the rotating movement with the same rotating direction as a grinding wheel and the radial feed speed are given to the hard alloy bar, the impact on the end faces of the hard alloy bar by a guiding wheel is reduced, therefore, the rejection rate of products is reduced, and production cost is reduced.
Description
Technical field
The present invention relates to a kind of centreless grinding device of hard alloy bar, specifically can be used for the centreless grinding device of hard alloy bar.
Background technology
Hard alloy bar is by the WC particle of high rigidity and the relative toughness composite that forms of bond preferably, thereby it has good mechanical performance, as hardness, wearability, ductility etc.Carbide alloy is extensive use in industry, and requiring can large batch of production hard alloy cutter, but because carbide alloy processing difficulties, processing cost are high, high to the quality requirement of lathe, these have all restricted the carbide alloy extensive use.PCB is exactly the printed wiring board that often by people, is called " mother of electronic system product ".The pcb board industry develops rapidly in China in recent years.Pcb board before the dress electronic device, must carry out the processing such as groove milling, boring on panel, for precision and the production efficiency of the position, hole that will guarantee pcb board, the use of cutter has just been had very high requirement.The printed board drill bit generally all adopts hard alloy bar, because other materials is such as the multiple copper foil plate of epoxy glass fabric is fast especially to the wearing and tearing of cutter.
Due to the material behavior of carbide alloy, we mainly adopt centerless grinding processing rigid alloy bar material present stage.Centreless grinding is successfully to deliver between emery wheel and guide wheel by the workpiece that automatic feeding is sent electromagnetic feeding device here, completes the cylindricalo grinding of machining.Because the automaticity of automatic feeding is high, be convenient to guarantee work safety, stable.It not only can replace artificial feeding, has alleviated workman's labour intensity, and can significantly improve the quality of products and operating efficiency.But due to the material behavior of carbide alloy, the emery wheel that during the thin rod of processing, the end face of thin rod is easily moved impacts and collapses angle or produces micro-crack, thereby makes the percent defective of product very high, has also increased production cost in the process of the processing of centerless grinding.(annotating: carbide alloy PCB bar size diameter 3.25mm, length 39mm)
In existing centreless grinding technology, all automatic charging devices are all to send into space between emery wheel and guide wheel with certain axial velocity, cause bar section to enter that moment of grinding area suffered impulsive force larger.
Summary of the invention
The object of the invention is to, for the deficiencies in the prior art, a kind of centreless grinding device of hard alloy bar is provided, can be to one rotatablely moves identical with the emery wheel direction of rotation when hard alloy bar enters grinding area,, to reduce the impulsive force of emery wheel to the hard alloy bar end face, thereby reduce, collapse the angle phenomenon.
technical scheme of the present invention is, a kind of centreless grinding device of hard alloy bar, comprise emery wheel and the guide wheel that adapts with emery wheel, the emery wheel centre rotational axis is parallel with the guide wheel centre rotational axis, and be useful on the space of Pattern In Grinding Cemented Carbide bar between emery wheel and guide wheel, and be provided with feed mechanism hard alloy bar is delivered to space between emery wheel and guide wheel from the direction of the front end edge of emery wheel and guide wheel and grinding wheel spindle line parallel, this device also comprises being located at described emery wheel with the guide wheel front end and driving hard alloy bar does the rotary feeding mechanism that rotatablely move consistent with the emery wheel direction of rotation.
Described rotary feeding mechanism comprises motor, the connecting gear that is connected with motor and two swiveling wheels that are connected with connecting gear, the centre rotational axis of two swiveling wheels is all parallel with the emery wheel centre rotational axis, and the direction of rotation of two swiveling wheels is consistent with the direction of rotation of emery wheel, between two swiveling wheels, the gap that holds hard alloy bar is arranged, the fore-and-aft direction distance at two swiveling wheel centers is less than the length of hard alloy bar.
Described connecting gear comprise by two lower belt pulleys of belt connection for transmission and with two two upper belt pulleys that lower belt pulley is corresponding, two respectively corresponding swiveling wheels of lower belt pulley, and lower belt pulley connects with corresponding swiveling wheel by the swiveling wheel centre rotational axis, between lower belt pulley and corresponding upper belt pulley by the belt connection for transmission, one of them lower belt pulley center is provided with the transmission shaft that drives lower belt pulley rotation, and described transmission shaft is connected by shaft coupling with motor output shaft.
Open buncher,, by the rotation of shaft coupling band movable belt pulley, distinguish again the driven rotary wheel by the band transmission and rotate.The rotating speed of swiveling wheel can adapt to different processing conditions by speed regulator adjustment.
Described swiveling wheel is made by flexible material, in order to avoid the scratch hard alloy bar, flexible material can be selected rubber or nylon.
Compared with prior art, the invention has the beneficial effects as follows: before hard alloy bar enters grinding area to it one turn to identical rotatablely moving with emery wheel, thereby reduce the impulsive force of guide wheel to the hard alloy bar end face, thereby make the percent defective of product reduce, also reduced production cost.
Description of drawings
Fig. 1 is the front view of the described grinding attachment of type of the present invention;
Fig. 2 is the left view of the described grinding attachment of type of the present invention.
The specific embodiment
as Fig. 1, shown in Figure 2, a kind of centreless grinding device of hard alloy bar, comprise the emery wheel 10 that is arranged on lathe 11 and the guide wheel that adapts with emery wheel 10, the emery wheel centre rotational axis is parallel with the guide wheel centre rotational axis, and be useful on the space of Pattern In Grinding Cemented Carbide bar 8 between emery wheel 10 and guide wheel, hard alloy bar is delivered to space between emery wheel 10 and guide wheel by feed mechanism 9 from the front end edge of emery wheel 10 and the guide wheel direction parallel with emery wheel 10 axis, this device also comprises being located at described emery wheel 10 with the guide wheel front end and driving hard alloy bar 8 does the rotary feeding mechanism that rotatablely move consistent with emery wheel 10 direction of rotation.
Rotary feeding mechanism comprises the motor 2 that is arranged on pedestal 1, the connecting gear that is connected with motor 2 and two swiveling wheels 7 that are connected with connecting gear, the centre rotational axis of two swiveling wheels 7 is all parallel with emery wheel 10 centre rotational axis, and the direction of rotation of two swiveling wheels 7 is consistent with the direction of rotation of emery wheel, between two swiveling wheels 7, the gap that holds hard alloy bar 8 is arranged, the fore-and-aft direction distance at two swiveling wheel 7 centers is less than the length of hard alloy bar 8.
Connecting gear comprise by two lower belt pulleys 4 of belt connection for transmission and with two two upper belt pulleys 6 that lower belt pulley 4 is corresponding, two upper belt pulleys 6 are corresponding one by one with two swiveling wheels 7, and upper belt pulley 6 connects with corresponding swiveling wheel 7 by swiveling wheel centre rotational axis 12, between lower belt pulley 4 and corresponding upper belt pulley 6 by belt 5 connection for transmissions, one of them lower belt pulley 4 center is provided with the transmission shaft 13 that drives lower belt pulley 4 rotations, and described transmission shaft 13 is connected by shaft coupling 3 with motor 2 output shafts.
Swiveling wheel 7 is made by rubber or nylon.
Claims (5)
1. the centreless grinding device of a hard alloy bar, comprise emery wheel (10) and the guide wheel that adapts with emery wheel (10), the emery wheel centre rotational axis is parallel with the guide wheel centre rotational axis, and be useful on the space of Pattern In Grinding Cemented Carbide bar (8) between emery wheel (10) and guide wheel, and be provided with feed mechanism (9) hard alloy bar (8) is delivered to space between emery wheel (10) and guide wheel from the front end edge of emery wheel (10) and the guide wheel direction parallel with emery wheel (10) axis, it is characterized in that, this device also comprises being located at described emery wheel (10) with the guide wheel front end and driving hard alloy bar (8) does the rotary feeding mechanism that rotatablely move consistent with emery wheel (10) direction of rotation.
2. the centreless grinding device of hard alloy bar according to claim 1, it is characterized in that, described rotary feeding mechanism comprises motor (2), the connecting gear that is connected with motor (2) and two swiveling wheels (7) that are connected with connecting gear, the centre rotational axis of two swiveling wheels (7) is all parallel with emery wheel (10) centre rotational axis, and the direction of rotation of two swiveling wheels (7) is consistent with the direction of rotation of emery wheel, between two swiveling wheels (7), the gap that holds hard alloy bar (8) is arranged, the fore-and-aft direction distance at two swiveling wheels (7) center is less than the length of hard alloy bar (8).
3. the centreless grinding device of hard alloy bar according to claim 2, it is characterized in that, described connecting gear comprises by two lower belt pulleys (4) of belt connection for transmission and two upper belt pulleys (6) corresponding with two lower belt pulleys (4), two upper belt pulleys (6) are corresponding one by one with two swiveling wheels (7), and upper belt pulley (6) connects with corresponding swiveling wheel (7) by swiveling wheel centre rotational axis (12), between lower belt pulley (4) and corresponding upper belt pulley (6) by belt (5) connection for transmission, one of them lower belt pulley (4) center is provided with the transmission shaft (13) that drives lower belt pulley (4) rotation, described transmission shaft (13) is connected by shaft coupling (3) with motor (2) output shaft.
4. the centreless grinding device of hard alloy bar according to claim 1, is characterized in that, described swiveling wheel (7) is made by flexible material.
5. the centreless grinding device of hard alloy bar according to claim 4, is characterized in that, described flexible material is rubber or nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342133.2A CN103394977B (en) | 2013-08-08 | 2013-08-08 | A kind of centreless grinding device of hard alloy bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342133.2A CN103394977B (en) | 2013-08-08 | 2013-08-08 | A kind of centreless grinding device of hard alloy bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103394977A true CN103394977A (en) | 2013-11-20 |
| CN103394977B CN103394977B (en) | 2015-07-29 |
Family
ID=49558801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310342133.2A Expired - Fee Related CN103394977B (en) | 2013-08-08 | 2013-08-08 | A kind of centreless grinding device of hard alloy bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103394977B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863036A (en) * | 2017-01-18 | 2017-06-20 | 天津市山友玉石纽扣有限公司 | A kind of centerless external cylindrical mill |
| CN111604716A (en) * | 2020-05-29 | 2020-09-01 | 南阳鼎泰高科有限公司 | Process method for processing PCB micro drill |
| CN115091379A (en) * | 2022-07-21 | 2022-09-23 | 上海惠而顺精密工具股份有限公司 | Integrated zirconia grinding head processing technology and grinding tool made by same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002166359A (en) * | 2000-11-29 | 2002-06-11 | Waida Seisakusho:Kk | Working method, working device, and working machine |
| CN201175858Y (en) * | 2008-01-02 | 2009-01-07 | 文宇 | Oversize ball bearing double-groove high precision diamond grinding wheel dressing device |
| KR100899136B1 (en) * | 2001-07-17 | 2009-05-26 | 고요 기카이 고교 가부시키가이샤 | Centerless grinding method for bar-shape work and centerless grinder |
| JP2010042480A (en) * | 2008-08-14 | 2010-02-25 | Daido Steel Co Ltd | Rolled bar surface polishing method |
| CN102581746A (en) * | 2012-02-29 | 2012-07-18 | 无锡市飞云球业有限公司 | Ball feeding-discharging hole structure of ball mill |
| CN102765028A (en) * | 2012-07-25 | 2012-11-07 | 无锡机床股份有限公司 | Charge and discharge mechanism of numerical control spherical roller grinding machine |
| CN203409607U (en) * | 2013-08-08 | 2014-01-29 | 湖南大学 | Centerless grinding device for hard alloy bar |
-
2013
- 2013-08-08 CN CN201310342133.2A patent/CN103394977B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002166359A (en) * | 2000-11-29 | 2002-06-11 | Waida Seisakusho:Kk | Working method, working device, and working machine |
| KR100899136B1 (en) * | 2001-07-17 | 2009-05-26 | 고요 기카이 고교 가부시키가이샤 | Centerless grinding method for bar-shape work and centerless grinder |
| CN201175858Y (en) * | 2008-01-02 | 2009-01-07 | 文宇 | Oversize ball bearing double-groove high precision diamond grinding wheel dressing device |
| JP2010042480A (en) * | 2008-08-14 | 2010-02-25 | Daido Steel Co Ltd | Rolled bar surface polishing method |
| CN102581746A (en) * | 2012-02-29 | 2012-07-18 | 无锡市飞云球业有限公司 | Ball feeding-discharging hole structure of ball mill |
| CN102765028A (en) * | 2012-07-25 | 2012-11-07 | 无锡机床股份有限公司 | Charge and discharge mechanism of numerical control spherical roller grinding machine |
| CN203409607U (en) * | 2013-08-08 | 2014-01-29 | 湖南大学 | Centerless grinding device for hard alloy bar |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863036A (en) * | 2017-01-18 | 2017-06-20 | 天津市山友玉石纽扣有限公司 | A kind of centerless external cylindrical mill |
| CN111604716A (en) * | 2020-05-29 | 2020-09-01 | 南阳鼎泰高科有限公司 | Process method for processing PCB micro drill |
| CN115091379A (en) * | 2022-07-21 | 2022-09-23 | 上海惠而顺精密工具股份有限公司 | Integrated zirconia grinding head processing technology and grinding tool made by same |
| CN115091379B (en) * | 2022-07-21 | 2023-04-28 | 上海惠而顺精密工具股份有限公司 | Integrated zirconia grinding head processing technology and grinding tool manufactured by same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103394977B (en) | 2015-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101947749B (en) | Numerical control machine tool capable of grinding two sides of plane by dislocation self-rotation and ultrasonic vibration | |
| CN108098360B (en) | Whole group cantilever processing production line of high-speed railway | |
| CN204604475U (en) | Possesses the multi-purposed wood worker's lathe of processing beads function | |
| CN103394977B (en) | A kind of centreless grinding device of hard alloy bar | |
| CN105269048A (en) | Spinning milling drilling process for carbon fiber composites | |
| CN106903513A (en) | A kind of numerical control bearing with spherical outside surface composite processing machine tool | |
| CN104647202A (en) | Grinding head mechanism for vertical glass edging machine | |
| CN203409607U (en) | Centerless grinding device for hard alloy bar | |
| CN202667709U (en) | Oblique type boring machine | |
| CN211661670U (en) | Grinding wheel replacing and feeding device of tool grinding machine | |
| CN109227368B (en) | Combined grinding head for blunting sharp edge of cam shaft | |
| CN201036811Y (en) | Whirlwind cutting device for machine tool processing | |
| CN204294978U (en) | With the novel horizontal numerical control drilling machine of chip removal function | |
| CN101456147B (en) | Abrasive machining device for vertical lathe round guide-rail | |
| CN210524417U (en) | Diversion sheave race cutting and burnishing device | |
| CN204818305U (en) | Automatic beveler of axle bush | |
| CN105033811B (en) | A kind of grinding and polishing sector of diamond abrading and polishing machine | |
| CN208961457U (en) | A kind of brill tapping dual-purpose tool | |
| CN204487350U (en) | A kind of grinding head mechanism of vertical glass edge polisher | |
| CN204294989U (en) | Multi-stage cylinder overcoat inclined hole processing lathe | |
| CN106583759A (en) | Automatic bearing bush chamfering device | |
| CN207415064U (en) | A kind of lathe grinding auxiliary device | |
| CN105642979A (en) | Tool used for machining internal conical surface by adopting end-face single-shaft milling machine | |
| CN202528015U (en) | Rotary positioning mechanism of milling tool fish tail cutter | |
| CN202894903U (en) | Opening grinder for drilling tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150729 Termination date: 20200808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |