CN107932305A - A kind of cutter and the carbon brush curved surface grinding numerically-controlled machine tool with the cutter - Google Patents
A kind of cutter and the carbon brush curved surface grinding numerically-controlled machine tool with the cutter Download PDFInfo
- Publication number
- CN107932305A CN107932305A CN201711396968.0A CN201711396968A CN107932305A CN 107932305 A CN107932305 A CN 107932305A CN 201711396968 A CN201711396968 A CN 201711396968A CN 107932305 A CN107932305 A CN 107932305A
- Authority
- CN
- China
- Prior art keywords
- cutter
- carbon brush
- machine tool
- curved surface
- controlled machine
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of cutter, the cutter includes clamper (201), cutter groove (202), cutter shaft (203) and handle of a knife (204), one end of the clamper (201) is equipped with groove, one end of the cutter shaft (203) and the matching grooves, the handle of a knife (204) is arranged between the cutter shaft (203) and cutter groove (202), the side of the cutter groove (202) is curved blade, and the arc shape of the blade is determined according to the curve form of carbon brush to be ground (1), it is molded so as to fulfill the once grinding of carbon brush (8).The invention also discloses a kind of carbon brush curved surface with the cutter to grind numerically-controlled machine tool.The cutter of the present invention, using cambered surface knife as milling cutter, its cambered surface is consistent with commutator radian, it so can ensure that carbon brush grinding cambered surface can fully be coincide with commutator cambered surface, the multifreedom motions such as translation and rotation by cutter, realize the initial carbon brush being ground into the carbon brush finished product with required curved surface.
Description
Technical field
The invention belongs to carbon brush computer controlled grinding processing technique field, more particularly, to a kind of cutter and has the cutter
Carbon brush curved surface grinding numerically-controlled machine tool.
Background technology
Carbon brush (Carbon brush) be also brush, as a kind of slide contact member, is widely used many electric
In equipment.The application material of carbon brush mainly has graphite, soaks fat graphite, metal (cupric, silver) graphite.Carbon brush configuration is mainly used for
Energy or signal are transmitted between motor or the fixed part and rotating part of generator or other rotating machineries, it is usually pure
Carbon adds coagulator to be made, and external form is usually square, is stuck on metallic support, and there is spring handle in the inside, and it is pressed in shaft, motor
When rotation, electric energy is conveyed to coil by phase changer, since its main component is carbon, is known as carbon brush, it is easy to wear
, therefore answer periodic maintenance to replace, and clear up carbon distribution.
Hinge of the carbon brush as electric energy transmission in motor unit, the quality of its state directly affect the normal work of motor unit
Make, and then have impact on the reliability level of whole electric system, once there is phenomena such as excessive wear, fracture, it is necessary to immediately in carbon brush
Replace.For ensure unit restarting after can within the shortest time motor unit commutator face formed uniform alumina film into
And reduce the inordinate wear of motor unit commutator face and the contact surface of carbon brush and motor unit commutator reaches most sufficient
Radian coincide so that the service life of single carbon brush extends, more renew it must be carried out before carbon brush it is quick, efficient and high-precision
Processing.
The processing technology of carbon brush mainly has two kinds at present, and one kind is to carry out underhand polish using abrasive machine, and another kind is to adopt
With computer-controlled digital-controlled carving machine.There are many defects during grinding for underhand polish：First, carbon brush working face radian
Depending on the radius of grinding wheel, process of lapping medium plain emery wheel surface is easily adhered to carbon dust and is not easily cleaned, and the accumulation of carbon dust can make
Fail into emery wheel, and the emery wheel to fail can not ensure the precision and abradant surface smoothness of grinding, continue to the carbon brush meeting of being processed
Its surface treatment is caused not reach requirement；Secondly, the carbon brush quantity of underhand polish single grinding is few, substantially can only once add
One carbon brush of work, causing grinding, time-consuming；Again, it can not ensure dynamics and the direction of grinding in underhand polish, cause processing
Success rate is not high.
And it is exactly to rationally design milling cutter and carbon brush to use most important in the lapping mode of computer control digital-controlled carving machine
Fixture, the surface finish requirements of carbon brush are very high, wherein the material of milling cutter, precision and straight with the identical design of carbon brush contact surface
Connecing influences the surface accuracy of carbon brush after processing, and conventional milling cutter is due to machining path in being driven in numerical control and control accuracy
Influence so that carbon brush surface grinding precision can be a greater impact, and whether fixation of the carbon brush fixture to carbon brush be reliable same
Influence the machining accuracy of carbon brush, particularly need to clamp at the same time multiple carbon brush to be ground carry out multiple carbon brush disposably processing with
The structure and its fixed form for lifting the occasion carbon brush fixture of grinding efficiency have a great influence carbon brush surface accuracy, current numerical control
Engraving machine can not meet the demand.The carbon brush of numerical controlled carving machining at the same time needs to configure the ancillary equipment such as water route, pneumatic, so
Whole device can be caused bulky, be unfavorable for portable use, and carbon dust is easily produced during carbon brush is processed, with carbon dust
Accumulation easily cause the short-circuit initiation accident of motor incoming line circuit, furthermore need to connect computer in process and program control
System, operation are sufficiently complex.
Therefore, there is an urgent need for seek a kind of high grinding precision, efficient, small, safety, simple operation and the high carbon brush of success rate
Lapping device.
The content of the invention
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of cutter and the carbon brush with the cutter
Curved surface grinds numerically-controlled machine tool, it is intended that using cambered surface knife as milling cutter, its cambered surface is consistent with commutator radian, this
Sample can ensure that carbon brush grinding cambered surface can fully be coincide with commutator cambered surface, be transported by multiple degrees of freedoms such as the translations and rotation of cutter
It is dynamic, realize and the initial carbon brush is ground into the carbon brush finished product with required curved surface.
To achieve these goals, one side according to the invention, there is provided a kind of cutter, the cutter include clamping
Device, cutter groove, cutter shaft and handle of a knife；
One end of the clamper is equipped with groove, one end of the cutter shaft and the matching grooves, is used for realization to described
The firm clamping of cutter shaft；
The handle of a knife is arranged between the cutter shaft and cutter groove, is used for realization being fixedly connected for the cutter shaft and cutter groove；
The side of the cutter groove is curved blade, and the arc shape of the blade is according to the curve form of carbon brush to be ground
Determine, be molded so as to fulfill the once grinding of carbon brush.
Further, the arc shape of the curved blade is consistent with commutator radian, for ensuring grinding for the carbon brush
Mill cambered surface can be matched with commutator cambered surface.
Further, the cutter groove is multiple, and each cutter groove is arranged symmetrically along the circumferential direction of the cutter；
A kind of carbon brush curved surface grinding numerically-controlled machine tool, including the cutter are provided according to the present invention.
Further, the numerically-controlled machine tool includes cabinet, fixture, cutter and spindle motor；
The fixture is arranged on the bottom of the cabinet, and the spindle motor is arranged on the top of the fixture, and the cutter is set
In the bottom of the spindle motor, it is ensured that it drives the cutter to rotate with carbon brush curved face contact, the spindle motor just, from
And complete the grinding to carbon brush.
Further, numerically-controlled machine tool further includes telescopic shaft and stepper motor, and the telescopic shaft is arranged on the top of the cabinet,
One end of the telescopic shaft is equipped with stepper motor, and the stepper motor is used to drive the telescopic shaft stretching motion.
Further, the both sides of the telescopic shaft are spaced apart is respectively equipped with guide rail.
Further, installation pedestal is arranged with the guide rail, the installation pedestal can be moved along the guide rail.
Further, multiple carbon brush mounting grooves are equipped with the fixture, for placing multiple carbon brush to be ground at the same time.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
(1) cutter of the invention, using cambered surface knife as milling cutter, its cambered surface is consistent with commutator radian, so i.e.
It can ensure that carbon brush grinding cambered surface can fully be coincide with commutator cambered surface, by multifreedom motions such as the translations and rotation of cutter,
Realize and the initial carbon brush is ground into the carbon brush finished product with required curved surface.
(2) cutter of the invention, Tool Design is multi-disc, is arranged in one end of connecting rod jointly, multi-disc cutter is with connection
Bar rotates together, realizes in a circular motion, repeatedly carbon brush is ground, so that rapid shaping.
(3) the grinding numerically-controlled machine tool of the carbon brush curved surface with the cutter of the invention, can greatly shorten single carbon brush grinding institute
Take time, improve grinding success rate and grinding precision, and then improve main transformer maintaining efficiency, ensure the peace of full ship electric system
Entirely, continuously, reliably.
(4) the carbon brush curved surface with the cutter of the invention grinds numerically-controlled machine tool, main converter set carbon brush lapping device with
The automatic numerical control engraving machine of Three Degree Of Freedom is parent form, using one-touch start stop operation, can be automatically performed carbon brush grinding, process
In without controlling manually, single operation can grind 4 carbon brush.
(5) the grinding numerically-controlled machine tool of the carbon brush curved surface with the cutter of the invention, does not influence external environment, when having grinding
Between it is short, precision is high, it is safe the advantages that.
Brief description of the drawings
Fig. 1 is a kind of front view of cutter of the embodiment of the present invention；
Fig. 2 is a kind of three dimensional structure diagram of cutter of the embodiment of the present invention；
Fig. 3 is a kind of cutter of the embodiment of the present invention and the schematic diagram of carbon brush grinding；
Fig. 4 is the three dimensional structure diagram that there is the carbon brush curved surface of the cutter of the embodiment of the present invention to grind numerically-controlled machine tool；
Fig. 5 is the front view that there is the carbon brush curved surface of the cutter of the embodiment of the present invention to grind numerically-controlled machine tool；
Fig. 6 is the A-A sectional views of Fig. 4.
In all of the figs, same reference numeral represents identical technical characteristic, is specially：1- fixtures, 2- cutters, 3-
Spindle motor, 4- telescopic shafts, 5- stepper motors, 6- guide rails, 7- installation pedestals, 8- carbon brush, 9- grinded curved surfaces, 201- clampers,
202- cutter grooves, 203- cutter shafts, 204- handle of a knifes.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below that
Not forming conflict between this can be mutually combined.
Fig. 1 is a kind of front view of cutter of the embodiment of the present invention, and Fig. 2 is a kind of three-dimensional structure of cutter of the embodiment of the present invention
Schematic diagram.As depicted in figs. 1 and 2, cutter 2 includes clamper 201, cutter groove 202, cutter shaft 203 and handle of a knife 204.
Wherein, one end of clamper 201 and the output axis connection of spindle motor 3, the other end clamp cutter shaft 203, cutter
Side be equipped with multiple cutter grooves 202, handle of a knife 204 is arranged between cutter shaft 203 and cutter groove 202, is used for realization cutter shaft 203 and cutter groove
202 are fixedly connected.In the preferred embodiment of the invention, the quantity of cutter groove 202 is 4, and circumferentially symmetrical along central shaft
Arrangement, correspondingly, the side of cutter groove 202 are the blade of arc, and the arc shape of the blade is according to the curved of required carbon brush
Depending on shape, multi-disc cutter is rotated with connecting rod, realizes in a circular motion, repeatedly carbon brush is ground, so that
Rapid shaping.
Fig. 3 is a kind of cutter of the embodiment of the present invention and the schematic diagram of carbon brush grinding.As shown in figure 3, using cambered surface knife conduct
Milling cutter 2, its cambered surface is consistent with commutator radian, so can ensure that the grinding cambered surface 9 of carbon brush 8 and commutator cambered surface can fill
Divide and coincide, by multifreedom motions such as the translations and rotation of cutter 2, realize and the initial carbon brush 8 is ground into required
The carbon brush finished product of curved surface.Main converter set carbon brush lapping device is using the automatic numerical control engraving machine of Three Degree Of Freedom as parent form, using one
Keyed start stop operation, can be automatically performed carbon brush grinding, need not be controlled manually in process, single operation can grind 4 carbon brush.
Fig. 4 is the three dimensional structure diagram that there is the carbon brush curved surface of the cutter of the embodiment of the present invention to grind numerically-controlled machine tool.Such as
Shown in Fig. 4, carbon brush curved surface grinding numerically-controlled machine tool includes cabinet, fixture 1, cutter 2 and spindle motor 3, and wherein fixture 1 is arranged on machine
The bottom of cabinet, the fixture 1 is interior to be equipped with multiple carbon brush mounting grooves, easy to place multiple carbon brush to be ground at the same time, realizes multiple carbon
The once grinding shaping of brush.Spindle motor 3 is arranged on the top of fixture 1, and cutter 2 is arranged on the bottom of the spindle motor 3, it is ensured that its is proper
Good and carbon brush curved face contact, spindle motor 3 drives cutter 2 to rotate, so as to complete the grinding to carbon brush.
Fig. 5 is the front view that there is the carbon brush curved surface of the cutter of the embodiment of the present invention to grind numerically-controlled machine tool.As shown in figure 5,
Carbon brush curved surface grinding numerically-controlled machine tool further includes telescopic shaft 4 and guide rail 6, wherein, telescopic shaft 4 is arranged on enclosure top, easy to main shaft
Motor 3 is moved along it.The both sides of telescopic shaft 4 are spaced apart to be respectively equipped with guide rail 6.
Fig. 6 is the A-A sectional views of Fig. 4.As shown in fig. 6, be arranged with installation pedestal 7 on guide rail, which can be along
Guide rail 6 moves, and one end of telescopic shaft 4 is equipped with stepper motor 5, and stepper motor 5 drives telescopic shaft 4 flexible, drives spindle motor edge
Guide rail 6 moves, and realizes the attrition process to multiple carbon brush.The time required to single carbon brush grinding can greatly be shortened, raising is ground into
Power and grinding precision, and then main transformer maintaining efficiency is improved, ensure the safe, continuous, reliable of full ship electric system.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of cutter, it is characterised in that the cutter includes clamper (201), cutter groove (202), cutter shaft (203) and handle of a knife
(204)；
One end of the clamper (201) is equipped with groove, and one end and the matching grooves of the cutter shaft (203), are used for realization
Firm clamping to the cutter shaft (203)；
The handle of a knife (204) is arranged between the cutter shaft (203) and cutter groove (202), is used for realization the cutter shaft (203) and cutter groove
(202) be fixedly connected；
The side of the cutter groove (202) is curved blade, and the arc shape of the blade is according to the curved surface of carbon brush to be ground (1)
Shape determines, is molded so as to fulfill the once grinding of carbon brush (8).
2. a kind of cutter according to claim 1, it is characterised in that the arc shape of the curved blade and commutator arc
Degree is consistent, and the grinding cambered surface (9) for ensuring the carbon brush (8) can be matched with commutator cambered surface.
3. a kind of cutter according to claim 1, it is characterised in that the cutter groove (202) is multiple, and each cutter groove
(202) it is arranged symmetrically along the circumferential direction of the cutter.
4. a kind of carbon brush curved surface grinds numerically-controlled machine tool, it is characterised in that including the knife as any one of claim 1-3
Tool.
5. a kind of carbon brush curved surface grinding numerically-controlled machine tool according to claim 4, it is characterised in that the numerically-controlled machine tool includes
Cabinet, fixture (1), cutter (2) and spindle motor (3)；
The fixture (1) is arranged on the bottom of the cabinet, and the spindle motor (3) is arranged on the top of the fixture (1), the knife
Has the bottom that (2) are arranged on the spindle motor (3), it is ensured that it is contacted with carbon brush curved surface (9) just, and the spindle motor (3) is driven
The dynamic cutter (2) rotates, so as to complete the grinding to carbon brush (8).
6. a kind of carbon brush curved surface grinding numerically-controlled machine tool according to claim 5, it is characterised in that numerically-controlled machine tool, which further includes, to be stretched
Contracting axis (4) and stepper motor (5), the telescopic shaft (4) are arranged on the top of the cabinet, and one end of the telescopic shaft (4) is equipped with
Stepper motor (5), the stepper motor (5) are used to drive the telescopic shaft (4) stretching motion.
7. a kind of carbon brush curved surface grinding numerically-controlled machine tool according to claim 6, it is characterised in that the telescopic shaft (4)
Both sides are spaced apart to be respectively equipped with guide rail (6).
8. a kind of carbon brush curved surface grinding numerically-controlled machine tool according to claim 7, it is characterised in that block on the guide rail (6)
Equipped with installation pedestal (7), the installation pedestal (7) can be moved along the guide rail (6).
9. a kind of carbon brush curved surface grinding numerically-controlled machine tool according to claim 5, it is characterised in that set in the fixture (1)
There are multiple carbon brush mounting grooves, for placing multiple carbon brush to be ground at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396968.0A CN107932305A (en) | 2017-12-21 | 2017-12-21 | A kind of cutter and the carbon brush curved surface grinding numerically-controlled machine tool with the cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396968.0A CN107932305A (en) | 2017-12-21 | 2017-12-21 | A kind of cutter and the carbon brush curved surface grinding numerically-controlled machine tool with the cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107932305A true CN107932305A (en) | 2018-04-20 |
Family
ID=61942109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711396968.0A Pending CN107932305A (en) | 2017-12-21 | 2017-12-21 | A kind of cutter and the carbon brush curved surface grinding numerically-controlled machine tool with the cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107932305A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2696803Y (en) * | 2004-05-09 | 2005-05-04 | 上海斯诺博金属构件发展有限公司 | Abrasive drilling tool for stone material and non-metal board material |
| CN200984703Y (en) * | 2006-11-29 | 2007-12-05 | 许晓华 | Carbon brush arc milling device |
| CN102935606A (en) * | 2012-12-04 | 2013-02-20 | 上海理工大学 | Flat grinder for vertical shaft double-circular truncated cone saw blade |
| CN103273419A (en) * | 2013-06-06 | 2013-09-04 | 广元飞达模具制造有限公司 | Grinding head used for accurate grinding of deflection magnetic core |
| CN204954573U (en) * | 2015-09-06 | 2016-01-13 | 东莞市友辉光电科技有限公司 | Synchronous burnishing device of multistation 3D curved surface |
| CN106808351A (en) * | 2017-03-07 | 2017-06-09 | 昆山日日先精密机械有限公司 | A kind of three travelling wheelhead roll grinders of planer-type Vertical Mill high accuracy |
| CN206276954U (en) * | 2016-08-31 | 2017-06-27 | 西安法士特汽车传动有限公司 | A kind of porting knife |
| CN107030581A (en) * | 2017-06-05 | 2017-08-11 | 浙江机电职业技术学院 | A kind of polishing tool |
| CN207888430U (en) * | 2017-12-21 | 2018-09-21 | 武汉华海通用电气有限公司 | A kind of cutter and the carbon brush curved surface with the cutter grind numerically-controlled machine tool |
-
2017
- 2017-12-21 CN CN201711396968.0A patent/CN107932305A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2696803Y (en) * | 2004-05-09 | 2005-05-04 | 上海斯诺博金属构件发展有限公司 | Abrasive drilling tool for stone material and non-metal board material |
| CN200984703Y (en) * | 2006-11-29 | 2007-12-05 | 许晓华 | Carbon brush arc milling device |
| CN102935606A (en) * | 2012-12-04 | 2013-02-20 | 上海理工大学 | Flat grinder for vertical shaft double-circular truncated cone saw blade |
| CN103273419A (en) * | 2013-06-06 | 2013-09-04 | 广元飞达模具制造有限公司 | Grinding head used for accurate grinding of deflection magnetic core |
| CN204954573U (en) * | 2015-09-06 | 2016-01-13 | 东莞市友辉光电科技有限公司 | Synchronous burnishing device of multistation 3D curved surface |
| CN206276954U (en) * | 2016-08-31 | 2017-06-27 | 西安法士特汽车传动有限公司 | A kind of porting knife |
| CN106808351A (en) * | 2017-03-07 | 2017-06-09 | 昆山日日先精密机械有限公司 | A kind of three travelling wheelhead roll grinders of planer-type Vertical Mill high accuracy |
| CN107030581A (en) * | 2017-06-05 | 2017-08-11 | 浙江机电职业技术学院 | A kind of polishing tool |
| CN207888430U (en) * | 2017-12-21 | 2018-09-21 | 武汉华海通用电气有限公司 | A kind of cutter and the carbon brush curved surface with the cutter grind numerically-controlled machine tool |
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