CN207888430U - A kind of cutter and the carbon brush curved surface with the cutter grind numerically-controlled machine tool - Google Patents
A kind of cutter and the carbon brush curved surface with the cutter grind numerically-controlled machine tool Download PDFInfo
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- CN207888430U CN207888430U CN201721804473.2U CN201721804473U CN207888430U CN 207888430 U CN207888430 U CN 207888430U CN 201721804473 U CN201721804473 U CN 201721804473U CN 207888430 U CN207888430 U CN 207888430U
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- cutter
- carbon brush
- numerically
- machine tool
- curved surface
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a kind of cutters, 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 set 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), to realize the primary grinding molding of carbon brush (8).The invention also discloses a kind of, and the carbon brush curved surface with the cutter grinds numerically-controlled machine tool.The cutter of the utility model, using cambered surface knife as milling cutter, its cambered surface is consistent with commutator radian, it can ensure that carbon brush grinding cambered surface can fully be coincide with commutator cambered surface in this way, the multifreedom motions such as translation and rotation by cutter are realized the initial carbon brush being ground into the carbon brush finished product with required curved surface.
Description
Technical field
The utility model belongs to carbon brush computer controlled grinding processing technique field, more particularly, to a kind of cutter and with this
The carbon brush curved surface of cutter grinds numerically-controlled machine tool.
Background technology
Carbon brush (Carbon brush) be also brush, as a kind of slide contact member, is widely used many electrical
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, referred to as carbon brush, it is easy to wear
, therefore periodic maintenance is answered to replace, and clear up carbon distribution.
The hinge that carbon brush is transmitted as electric energy in motor unit, the quality of state directly affect the normal work of motor unit
Make, and then affect the reliability level of entire electric system, once phenomena such as excessive wear, fracture occurs in carbon brush, needs immediately
It replaces.For ensure unit restarting after can in 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 adequately
Radian coincide so that the service life of single carbon brush extends, and quick, efficient and high-precision must be carried out to it before more renewing carbon brush
Processing.
At present there are mainly two types of the processing technologys of carbon brush, one is underhand polish is carried out using abrasive machine, 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
The grinding wheel for failing, and failing at grinding wheel 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, leading to grinding, time-consuming；Again, dynamics and the direction that can not ensure grinding in underhand polish, lead to 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
The surface finish requirements of fixture, carbon brush are very high, wherein the material, precision of milling cutter and straight with the identical design of carbon brush contact surface
The surface accuracy of carbon brush after influencing processing is connect, conventional milling cutter is due to machining path in being driven in numerical control and control accuracy
It influences so that carbon brush surface grinding precision can be a greater impact, and whether carbon brush fixture is reliable to the fixation of carbon brush same
Influence the machining accuracy of carbon brush, especially need to be clamped simultaneously multiple carbon brush to be ground carry out multiple carbon brush disposably process with
The structure and its fixed form for promoting the occasion carbon brush fixture of grinding efficiency are affected to carbon brush surface accuracy, current numerical control
Engraving machine cannot be satisfied the demand.The carbon brush of numerical controlled carving machining simultaneously needs to configure the peripheral equipments such as water route, pneumatic, in this way
Whole device can be caused bulky, be unfavorable for portable use, and carbon brush easy tos produce carbon dust during processing, with carbon dust
Accumulation easily cause the short-circuit initiation accident of motor incoming line circuit, furthermore need to connect in process and computer 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
Grinding device.
Utility model content
For the disadvantages described above or Improvement requirement of the prior art, the utility model provides a kind of cutter and with the cutter
Carbon brush curved surface grinds numerically-controlled machine tool, it is intended that using cambered surface knife as milling cutter, cambered surface and commutator radian one
It causes, can ensure that carbon brush grinding cambered surface can fully be coincide with commutator cambered surface in this way, mostly certainly by translation and rotation of cutter etc.
It is moved by degree, realizes and the initial carbon brush is ground into the carbon brush finished product with required curved surface.
To achieve the goals above, according to the one side of the utility model, a kind of cutter is provided, the cutter includes folder
Holder, 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, for realizing to described
The secured clamping of cutter shaft；
The handle of a knife is set between the cutter shaft and cutter groove, for realizing 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
It determines, to realize the primary grinding molding 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 utility model.
Further, the numerically-controlled machine tool includes cabinet, fixture, cutter and spindle motor；
The fixture is set to the bottom of the cabinet, and the spindle motor is set to the top of the fixture, and the cutter is set
In the bottom end of the spindle motor, it is ensured that, just with carbon brush curved face contact, the spindle motor drives the cutter rotation for it, 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 set to the top of the cabinet,
One end of the telescopic shaft is equipped with stepper motor, and the stepper motor is for driving 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 on the guide rail, the installation pedestal can be moved along the guide rail.
Further, multiple carbon brush mounting grooves are equipped in the fixture, for placing multiple carbon brush to be ground simultaneously.
In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art,
Row advantageous effect：
(1) cutter of the utility model, using cambered surface knife as milling cutter, 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, it realizes and the initial carbon brush is ground into the carbon brush finished product with required curved surface.
(2) cutter of the utility model, Tool Design are multi-disc, are arranged in one end of connecting rod jointly, multi-disc cutter with
Connecting rod rotates together, and realizes in a circular motion, is repeatedly ground to carbon brush, to rapid shaping.
(3) the carbon brush curved surface with the cutter of the utility model grinds numerically-controlled machine tool, can greatly shorten single carbon brush and grind
The time required to mill, grinding success rate and grinding precision is improved, and then improve main transformer maintaining efficiency, ensure full ship electric system
It is safe, continuous, reliable.
(4) the carbon brush curved surface with the cutter of the utility model grinds numerically-controlled machine tool, main converter set carbon brush grinding dress
It sets using the automatic numerical control engraving machine of Three Degree Of Freedom as parent form, using one-touch start stop operation, carbon brush grinding, processing can be automatically performed
It is not necessarily to manually control in the process, single operation can grind 4 carbon brush.
(5) the carbon brush curved surface with the cutter of the utility model grinds numerically-controlled machine tool, does not influence external environment, has and grinds
It consumes time the advantages that short, precision is high, safe.
Description of the drawings
Fig. 1 is a kind of front view of cutter of the utility model embodiment；
Fig. 2 is a kind of three dimensional structure diagram of cutter of the utility model embodiment；
Fig. 3 is the schematic diagram of a kind of cutter of the utility model embodiment and carbon brush grinding；
Fig. 4 is the three-dimensional structure signal that there is the utility model embodiment the carbon brush curved surface of the cutter to grind numerically-controlled machine tool
Figure；
Fig. 5 is the front view that there is the utility model embodiment the carbon brush curved surface of the cutter to grind numerically-controlled machine tool；
Fig. 6 is the A-A sectional views of Fig. 4.
In all the appended drawings, same reference numeral indicates identical technical characteristic, 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.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.In addition, involved in the various embodiments of the present invention described below
And to technical characteristic can be combined with each other as long as they do not conflict with each other.
Fig. 1 is a kind of front view of cutter of the utility model embodiment, and Fig. 2 is a kind of cutter of the utility model embodiment
Three dimensional structure 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, the output axis connection of one end of clamper 201 and spindle motor 3, the other end clamp cutter shaft 203, cutter
Side be equipped with multiple cutter grooves 202, handle of a knife 204 be set between cutter shaft 203 and cutter groove 202, for realizing cutter shaft 203 and cutter groove
202 are fixedly connected.In the utility model preferred embodiment, the quantity of cutter groove 202 is 4, and along central shaft circumferential direction
It is arranged symmetrically, correspondingly, the side of cutter groove 202 is the blade of arc, and the arc shape of the blade is according to the song of required carbon brush
Depending on the shape of face, multi-disc cutter is rotated together with connecting rod, is realized in a circular motion, is repeatedly ground to carbon brush,
To rapid shaping.
Fig. 3 is the schematic diagram of a kind of cutter of the utility model embodiment and carbon brush grinding.As shown in figure 3, using cambered surface knife
As milling cutter 2, cambered surface is consistent with commutator radian, can ensure that the grinding cambered surface 9 and commutator cambered surface of carbon brush 8 in this way
It can fully coincide, by multifreedom motions such as the translations and rotation of cutter 2, the initial carbon brush 8 is ground by realization to be had
The carbon brush finished product of required curved surface.Main converter set carbon brush grinding device is adopted using the automatic numerical control engraving machine of Three Degree Of Freedom as parent form
With one-touch start stop operation, it can be automatically performed carbon brush grinding, be not necessarily to manually control in process, single operation can grind 4
Carbon brush.
Fig. 4 is the three-dimensional structure signal that there is the utility model embodiment the carbon brush curved surface of the cutter to grind numerically-controlled machine tool
Figure.As shown in figure 4, carbon brush curved surface grinding numerically-controlled machine tool includes cabinet, fixture 1, cutter 2 and spindle motor 3, wherein fixture 1
It is equipped with multiple carbon brush mounting grooves in the bottom of cabinet, the fixture 1, convenient for placing multiple carbon brush to be ground simultaneously, realizes
The primary grinding of multiple carbon brush is molded.Spindle motor 3 is set to the top of fixture 1, and cutter 2 is set to the bottom end of the spindle motor 3, really
It is protected just with carbon brush curved face contact, and spindle motor 3 drives cutter 2 to rotate, to complete the grinding to carbon brush.
Fig. 5 is the front view that there is the utility model embodiment the carbon brush curved surface of the cutter to grind numerically-controlled machine tool.Such as Fig. 5 institutes
Show, it further includes telescopic shaft 4 and guide rail 6 which, which grinds numerically-controlled machine tool, wherein telescopic shaft 4 is set to enclosure top, convenient for master
Spindle 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 above is only the preferred embodiment of the utility model only, not
For limiting the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of cutter, which is characterized 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, one end of the cutter shaft (203) and the matching grooves, for realizing
Secured clamping to the cutter shaft (203)；
The handle of a knife (204) is set between the cutter shaft (203) and cutter groove (202), for realizing 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, to realize the primary grinding molding of carbon brush (8).
2. a kind of cutter according to claim 1, which is characterized in that the arc shape of the curved blade and commutator arc
Degree is consistent, for ensuring that the grinding cambered surface (9) of the carbon brush (8) can be matched with commutator cambered surface.
3. a kind of cutter according to claim 1, which is characterized in that the cutter groove (202) is multiple, and each cutter groove
(202) circumferential direction along the cutter is arranged symmetrically.
4. a kind of carbon brush curved surface grinds numerically-controlled machine tool, which is characterized in that including knife as claimed in any one of claims 1-3
Tool.
5. a kind of carbon brush curved surface according to claim 4 grinds numerically-controlled machine tool, which is characterized in that the numerically-controlled machine tool includes
Cabinet, fixture (1), cutter (2) and spindle motor (3)；
The fixture (1) is set to the bottom of the cabinet, and the spindle motor (3) is set to the top of the fixture (1), the knife
Has the bottom end that (2) are set to 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
Dynamic cutter (2) rotation, to complete the grinding to carbon brush (8).
6. a kind of carbon brush curved surface according to claim 5 grinds numerically-controlled machine tool, which is characterized in that numerically-controlled machine tool further includes stretching
Contracting axis (4) and stepper motor (5), the telescopic shaft (4) are set to the top of the cabinet, and one end of the telescopic shaft (4) is equipped with
Stepper motor (5), the stepper motor (5) is for driving the telescopic shaft (4) stretching motion.
7. a kind of carbon brush curved surface according to claim 6 grinds numerically-controlled machine tool, which is characterized 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 according to claim 7 grinds numerically-controlled machine tool, which is characterized in that block on the guide rail (6)
Equipped with installation pedestal (7), the installation pedestal (7) can move along the guide rail (6).
9. a kind of carbon brush curved surface according to claim 5 grinds numerically-controlled machine tool, which is characterized in that set in the fixture (1)
There are multiple carbon brush mounting grooves, for placing multiple carbon brush to be ground simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804473.2U CN207888430U (en) | 2017-12-21 | 2017-12-21 | A kind of cutter and the carbon brush curved surface with the cutter grind numerically-controlled machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804473.2U CN207888430U (en) | 2017-12-21 | 2017-12-21 | A kind of cutter and the carbon brush curved surface with the cutter grind numerically-controlled machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207888430U true CN207888430U (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721804473.2U Active CN207888430U (en) | 2017-12-21 | 2017-12-21 | A kind of cutter and the carbon brush curved surface with the cutter grind numerically-controlled machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932305A (en) * | 2017-12-21 | 2018-04-20 | 武汉华海通用电气有限公司 | A kind of cutter and the carbon brush curved surface grinding numerically-controlled machine tool with the cutter |
-
2017
- 2017-12-21 CN CN201721804473.2U patent/CN207888430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932305A (en) * | 2017-12-21 | 2018-04-20 | 武汉华海通用电气有限公司 | A kind of cutter and the carbon brush curved surface grinding numerically-controlled machine tool with the cutter |
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