CN102610978B - Method and device for machining motor carbon brush carrier - Google Patents
Method and device for machining motor carbon brush carrier Download PDFInfo
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- CN102610978B CN102610978B CN201210105191.9A CN201210105191A CN102610978B CN 102610978 B CN102610978 B CN 102610978B CN 201210105191 A CN201210105191 A CN 201210105191A CN 102610978 B CN102610978 B CN 102610978B
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Abstract
The invention discloses a method and device for machining a motor carbon brush carrier. The method for machining the motor carbon brush carrier comprises the following steps of: automatically feeding by utilizing a first terminal material strip, a second terminal material strip and a third terminal material strip; blanking, stamping and bending the first terminal material strip, the second terminal material strip and the third terminal material strip; riveting the first terminal material strip and the second terminal material strip, and cutting down a second terminal at the same time; riveting the first terminal material strip and the third terminal material strip, and cutting down a third terminal at the same time; finally finishing forming and blanking process to a riveted carbon brush. The method and device for machining the motor carbon brush carrier, disclosed by the invention, have the advantages of high machining efficiency and firm terminal riveting; and in addition, the terminals are bent before being riveted, and two different pre-riveting structures can be machined on the first terminal.
Description
Technical field
The present invention relates to motor part and manufacture field, particularly a kind of processing method of carbon brush frame for motor and process equipment thereof.
Background technology
As shown in Figures 1 to 4, a kind of carbon brush frame for motor 4 comprises the first terminal 1 and is riveted on the second terminal 2 and the 3rd terminal 3 on the first terminal 1, and in the prior art, the processing method of this kind of carbon brush frame for motor 4 roughly comprises the following steps, with reference to Fig. 1～Fig. 4:
(1) mould that adopts a mould to go out a plurality of products stamps out the first terminal 1 by the first material strip, the some first pre-riveted construction 11 that is stamped out on the first terminal 1 and the some second pre-riveted construction 12, and this first terminal 1 is also by curved extrusion two kinks 13 and 14;
(2) mould that adopts a mould to go out a plurality of products stamps out the second terminal 2 by the second material strip, the some the 3rd pre-riveted construction 21 that is stamped out on the second terminal 2 and matches with the first pre-riveted construction 11, this second terminal 2 is also by curved extrusion two bending ligulate shell fragments 22;
(3) mould that adopts a mould to go out a plurality of products stamps out the 3rd terminal 3 by the 3rd material strip, on the 3rd terminal 3, be stamped the some the 4th pre-riveted construction 31, the three terminals that match with the second pre-riveted construction 12 out also by curved extrusion one " 7 " font shell fragment 32;
(4) with special fixture, the mode by manual rivet is riveted together the first terminal 1 and the second terminal 2, then with special fixture, the mode by manual rivet is riveted together the first terminal 1 and the 3rd terminal 3, finally processes finished product carbon brush frame for motor 4.
The shortcoming of this kind of processing method is: production efficiency is low, and labour intensity is large; Three kinds of terminals go out a plurality of products by a mould respectively and are stamped to form, and are difficult to guarantee the moulding of each product and the stability of angle; Three kinds of terminals all need curved pressure, and its transformation yield is low; The surface of the oxidizable product of spot staying during hand riveting, and the defect such as hand riveting also can cause because location is inaccurate that riveted joint is bad, off normal, pulling-out force are inadequate.
Chinese invention patent 200710030090.9 discloses a kind of production method of DC electric machine carbon brush holder, adopt brass material strip and beryllium copper automatic tape feeding, again the mode of the terminal of being made by brass material strip and the elastic arm automatic press combination of being made by beryllium copper material strip produced, the production efficiency that business is established in this production method and production thereof is high, and terminal and elastic arm be in conjunction with firmly, quality is also secure.Yet the production method of this DC electric machine carbon brush holder and production equipment thereof can not be produced the carbon brush frame for motor with three terminals, it has following defect:
The special-purpose production equipment of production method of one, this DC electric machine carbon brush holder only has two feeding guides, cannot complete the transmission of three terminals;
The carbon brush frame for motor that two, has three terminals need to carry out twice riveted joint and can be assembled, and the production equipment of this DC electric machine carbon brush holder only has a riveting drift pressing mold, cannot complete twice riveted joint; And the first terminal need to stamp out two kinds of different pre-riveted constructions, the production method of this carbon brush frame for motor and equipment cannot complete;
Three, the special-purpose production equipment of the production method of this DC electric machine carbon brush holder cannot complete the curved pressing formation before riveted joint, make terminal when riveted joint, because terminal structure has longer extension, very easily produce the problem that extension is mutually interfered and superposeed, therefore, even if increase simply a set of feeding guide and riveting drift pressing mold, can not complete the processing that this kind has the carbon brush frame for motor of three terminals.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned deficiency of the prior art, provide a kind of for processing the processing method of the carbon brush frame for motor with three terminals, this processing method working (machining) efficiency is high, terminal riveted is firm, and before riveted, can carry out curved pressing formation to terminal, can process two kinds of different pre-riveted constructions to the first terminal; For this reason, the present invention also will provide the special processing equipment in a kind of above-mentioned processing method.
For solving above-mentioned first technical problem, technical scheme of the present invention is: a kind of processing method of carbon brush frame for motor, comprises the following steps:
A, the first terminal material strip is arranged in the first feeding guide on workbench, the second terminal material belt is arranged in the second feeding guide on workbench, the 3rd terminal material belt is arranged in the 3rd feeding guide on workbench; This first feeding guide and the second feeding guide are in a certain angle to intersect, and intersection is provided with the first riveting drift pressing mold; This first feeding guide and the 3rd feeding guide be in a certain angle intersecting also, and intersection is provided with the second riveting drift pressing mold;
B, before the first terminal material strip and the second terminal material belt move to the first riveting drift pressing mold, utilize the mould in the first feeding guide outside to carry out stamping-out, punching press and curved pressing formation to the first terminal material strip, on the first terminal material strip, stamp out the first pre-riveted construction and the second pre-riveted construction, utilize the mould in the second feeding guide outside to carry out stamping-out, punching press and curved pressing formation to the second terminal material belt, on the second terminal material belt, stamp out the 3rd pre-riveted construction matching with the first pre-riveted construction;
C, when the first terminal material strip and the second terminal material belt move to the first riveting drift pressing mold place simultaneously, by the first riveting drift pressing mold, move, by the 3rd pre-riveted construction riveted joint of the first pre-riveted construction of the first terminal material strip and the second terminal material belt, from the second terminal material belt, cut the second terminal simultaneously;
D, in riveted joint, have before the first terminal material strip of the second terminal and the 3rd terminal material belt move to the second riveting drift pressing mold, utilize the mould of the 3rd feeding guide top to carry out stamping-out and curved pressing formation to the 3rd terminal material belt, in the 3rd terminal material belt upper punch, determine the 4th pre-riveted construction;
E, when riveted joint has the first terminal material strip of the second terminal and the 3rd terminal material belt to move to the second riveting drift pressing mold place simultaneously, by the second riveting drift pressing mold, move, by the 4th pre-riveted construction riveted joint of the second pre-riveted construction of the first terminal material strip and the 3rd terminal material belt, from the 3rd terminal material belt, cut the 3rd terminal simultaneously;
F, the first terminal material strip, the second terminal material belt and the 3rd terminal material belt continue feeding, the first riveting drift pressing mold and the second riveting drift pressing mold repeat next punching press action, the carbon brush holder of riveted passes through shaping mould and blanking cutter successively, completes moulding and blanking processing.
For solving above-mentioned second technical problem, technical scheme of the present invention is: a kind of process equipment of carbon brush frame for motor, comprise workbench, this workbench is provided with the first feeding guide for installing and transmit the first terminal material strip, for installing and transmit the second feeding guide of the second terminal material belt and for installing and transmit the 3rd feeding guide of the 3rd terminal material belt; This first feeding guide and the second feeding guide are in a certain angle to intersect, and intersection is provided with the first riveting drift pressing mold; This first feeding guide and the 3rd feeding guide be in a certain angle intersecting also, and intersection is provided with the second riveting drift pressing mold; Along the direction of transfer of the first feeding guide, the first feeding guide outside before the first riveting drift pressing mold is provided with blanking die, stamping die and curved pressing mold, and the first feeding guide outside after the second riveting drift pressing mold is provided with shaping mould and blanking cutter; Along the direction of transfer of the second feeding guide, in the second feeding guide outside, be provided with blanking die, stamping die, curved pressing mold and cutter; Along the direction of transfer of the 3rd feeding guide, in the 3rd feeding guide outside, be provided with blanking die, stamping die and cutter.
The invention has the beneficial effects as follows: the present invention adopts the first feeding guide to carry out friction feeding to the first terminal material strip, adopt the second guide rail to carry out friction feeding to the second terminal material belt, adopt the 3rd guide rail to carry out friction feeding to the 3rd terminal material belt, utilize the processing moulds such as riveting drift pressing mold to carry out punching press, riveted, curved molded and blank to three kinds of terminal material belts simultaneously, not only production efficiency is high, and the riveted of three kinds of terminals is firm, processing yield is high.The present invention rivets before punching press at the first terminal material strip and the second terminal material belt, on the one hand, can carry out to the first terminal the punching press of two kinds of pre-riveted constructions; On the other hand, can utilize the curved pressing mold in the first feeding guide outside to carry out curved pressing formation for the first time to the first terminal, utilize the curved pressing mold in the second feeding guide outside to carry out curved pressing formation to the second terminal, make three kinds of terminals when punch riveting, the problem that does not exist terminal extension structure mutually to interfere or superpose, meanwhile, also make three kinds of mutual angles of feeding guide be easier to regulate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first terminal.
Fig. 2 is the structural representation of the second terminal.
Fig. 3 is the structural representation of the 3rd terminal.
Fig. 4 is the overall structure schematic diagram of carbon brush frame for motor.
Fig. 5 is the work flow schematic diagram of processing method of the present invention.
Fig. 6 is the block diagram of process equipment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Please refer to Fig. 5, and in conjunction with reference to Fig. 1～Fig. 4, in this embodiment, a kind of processing method of carbon brush frame for motor, comprises the following steps:
A, the first terminal material strip 10 is arranged in the first feeding guide on workbench 100, the second terminal material belt 20 is arranged in the second feeding guide on workbench 100, the 3rd terminal material belt 30 is arranged in the 3rd feeding guide on workbench 100; This first feeding guide and the second feeding guide are in a certain angle to intersect, and intersection is provided with the first riveting drift pressing mold; This first feeding guide and the 3rd feeding guide be in a certain angle intersecting also, and intersection is provided with the second riveting drift pressing mold;
B, before the first terminal material strip 10 and the second terminal material belt 20 move to the first riveting drift pressing mold, utilize the mould in the first feeding guide outside to carry out stamping-out, punching press and curved pressing formation to the first terminal material strip 10, on the first terminal material strip, stamp out the first pre-riveted construction 11 and the second pre-riveted construction 12, utilize the mould in the second feeding guide outside to carry out stamping-out, punching press and curved pressing formation to the second terminal material belt 20, on the second terminal material belt 20, stamp out the 3rd pre-riveted construction 21 matching with the first pre-riveted construction 11;
C, when the first terminal material strip 10 and the second terminal material belt 20 move to the first riveting drift pressing mold place simultaneously, by the first riveting drift pressing mold, move, by the 3rd pre-riveted construction 21 riveted joints of the first pre-riveted construction 11 of the first terminal material strip 10 and the second terminal material belt 20, from the second terminal material belt 20, cut the second terminal 2 simultaneously;
D, in riveted joint, have before the first terminal material strip 10 of the second terminal 2 and the 3rd terminal material belt 30 move to the second riveting drift pressing mold, utilize the mould of the 3rd feeding guide top to carry out stamping-out and curved pressing formation to the 3rd terminal material belt 30, in the 3rd terminal material belt 30 upper punches, determine the 4th pre-riveted construction 31;
E, when riveted joint has the first terminal material strip 10 of the second terminal 2 and the 3rd terminal material belt 30 to move to the second riveting drift pressing mold place simultaneously, by the second riveting drift pressing mold, move, by the 4th pre-riveted construction 31 riveted joints of the second pre-riveted construction 12 of the first terminal material strip 10 and the 3rd terminal material belt 30, from the 3rd terminal material belt 30, cut the 3rd terminal 3 simultaneously;
F, the first terminal material strip 10, the second terminal material belt 20 and the 3rd terminal material belt 30 continue feeding, the first riveting drift pressing mold and the second riveting drift pressing mold repeat next punching press action, the carbon brush holder of riveted passes through shaping mould and blanking cutter successively, completes moulding and the blanking processing of carbon brush frame for motor 4.
In technique scheme, the first terminal 1 has the first kink 13 and the second kink 14; Before the first terminal material strip 10 moves to the first riveting drift pressing mold, the first terminal 1 of determining that liquidates carries out curved pressing formation for the first time, makes the first terminal form the first kink 13.
In technique scheme, the second terminal 2 has two bending shell fragments 22; Before the second terminal material belt 20 moves to the first riveting drift pressing mold, the second terminal 2 determined that liquidates carries out curved pressing formation, makes the second terminal form the ligulate shell fragment 22 of two bendings.
Optimal way as pre-riveted construction processing, the some lower salient point 11 of the described first pre-riveted construction 11 for stamping out on the first terminal material strip 10, the described second pre-riveted construction 12 is salient point 12 on stamp out on the first terminal material strip 1 some, the described the 3rd some holes 21 of with described lower salient point 11 matching of pre-riveted construction 21 for stamping out on the second terminal material belt 20, the described the 4th pre-riveted construction 31 be on the 3rd terminal material belt 30, stamp out with described on salient point 12 some holes 31 of matching.
In technique scheme, described the first terminal material strip 10 is brass material strip, and described the second terminal material belt 20 and the 3rd terminal material belt 30 are beryllium copper material strip.
Please refer to Fig. 6, and incorporated by reference to reference to figure 1～Fig. 5, the process equipment of carbon brush frame for motor, comprise workbench 100, this workbench 100 is provided with the first feeding guide for installing and transmit the first terminal material strip 10, for installing and transmit the second feeding guide of the second terminal material belt 20 and for installing and transmit the 3rd feeding guide of the 3rd terminal material belt 30; This first feeding guide and the second feeding guide are in a certain angle to intersect, and intersection is provided with the first riveting drift pressing mold; This first feeding guide and the 3rd feeding guide be in a certain angle intersecting also, and intersection is provided with the second riveting drift pressing mold.
Hold, please refer to Fig. 5 and Fig. 6, direction of transfer along the first feeding guide, the first feeding guide outside before the first riveting drift pressing mold is provided with blanking die, stamping die and curved pressing mold, wherein, blanking die is for determining the first terminal 1 from the first terminal material strip 10 upper punches, and stamping die is for stamping out the first pre-riveted construction and the second pre-riveted construction from the first terminal material strip 10, and curved pressing mold is for extruding the first kink 13 from the first terminal; Along the direction of transfer of the first feeding guide, the first feeding guide outside after the second riveting drift pressing mold is provided with shaping mould and blanking cutter, and wherein, shaping mould is for the moulding of carbon brush frame for motor 4, and blanking cutter is for carrying out separated by carbon brush frame for motor 4 with leftover pieces; Direction of transfer along the second feeding guide, in the second feeding guide outside, be provided with blanking die, stamping die, curved pressing mold and cutter, wherein, blanking die is for determining the second terminal 2 from the second terminal material belt 20 upper punches, stamping die is for stamping out the 3rd pre-riveted construction from the second terminal material belt 20, curved pressing mold is for extruding the ligulate shell fragment 22 of two bendings from the second terminal 20, cutter is for separated with the second terminal material belt 20 by second terminal 2 of having riveted; Direction of transfer along the 3rd feeding guide, in the 3rd feeding guide outside, be provided with blanking die, stamping die and cutter, blanking die is for determining the 3rd terminal 3 from the 3rd terminal material belt 30 upper punches, stamping die is for stamping out the 4th pre-riveted construction from the 3rd terminal material belt 30, and cutter is for separated with the 3rd terminal material belt 30 by the 3rd terminal 3 of having riveted.
As shown in Figure 6, in technique scheme, the head end of described the first feeding guide is provided with the first feed arrangement, and tail end is provided with material collecting device; The head end of described the second feeding guide is provided with the second feed arrangement; The head end of described the 3rd feeding guide is provided with the 3rd feed arrangement.
As a kind of optimal way of the present invention, the stamping die in the first feeding guide outside before the first riveting drift pressing mold comprises stamping die and lower stamping die, the some lower salient point 11 that on this, stamping die can stamp out on the first terminal material strip 10, this lower stamping die can stamp out on the first terminal material strip 10 some on salient point 12.
As another kind of optimal way of the present invention, described the first feeding guide is positioned at the horizontal of workbench 100, and the left side that described the second feeding guide is positioned at workbench 100 is oblique, and described the 3rd feeding guide is oblique in the right side of workbench 100.
The above, be only better embodiment of the present invention, and any trickle modification, equivalent variations and modification that every foundation technical scheme of the present invention is done above execution mode, all belong in the scope of technical solution of the present invention.
Claims (9)
1. a processing method for carbon brush frame for motor, is characterized in that, comprises the following steps:
A, the first terminal material strip is arranged in the first feeding guide on workbench, the second terminal material belt is arranged in the second feeding guide on workbench, the 3rd terminal material belt is arranged in the 3rd feeding guide on workbench; This first feeding guide and the second feeding guide are in a certain angle to intersect, and intersection is provided with the first riveting drift pressing mold; This first feeding guide and the 3rd feeding guide be in a certain angle intersecting also, and intersection is provided with the second riveting drift pressing mold;
B, before the first terminal material strip and the second terminal material belt move to the first riveting drift pressing mold, utilize the mould in the first feeding guide outside to carry out stamping-out, punching press and curved pressing formation to the first terminal material strip, on the first terminal material strip, stamp out the first pre-riveted construction and the second pre-riveted construction, utilize the mould in the second feeding guide outside to carry out stamping-out, punching press and curved pressing formation to the second terminal material belt, on the second terminal material belt, stamp out the 3rd pre-riveted construction matching with the first pre-riveted construction;
C, when the first terminal material strip and the second terminal material belt move to the first riveting drift pressing mold place simultaneously, by the first riveting drift pressing mold, move, by the 3rd pre-riveted construction riveted joint of the first pre-riveted construction of the first terminal material strip and the second terminal material belt, from the second terminal material belt, cut the second terminal simultaneously;
D, in riveted joint, have before the first terminal material strip of the second terminal and the 3rd terminal material belt move to the second riveting drift pressing mold, utilize the mould of the 3rd feeding guide top to carry out stamping-out and curved pressing formation to the 3rd terminal material belt, in the 3rd terminal material belt upper punch, determine the 4th pre-riveted construction;
E, when riveted joint has the first terminal material strip of the second terminal and the 3rd terminal material belt to move to the second riveting drift pressing mold place simultaneously, by the second riveting drift pressing mold, move, by the 4th pre-riveted construction riveted joint of the second pre-riveted construction of the first terminal material strip and the 3rd terminal material belt, from the 3rd terminal material belt, cut the 3rd terminal simultaneously;
F, the first terminal material strip, the second terminal material belt and the 3rd terminal material belt continue feeding, the first riveting drift pressing mold and the second riveting drift pressing mold repeat next punching press action, the carbon brush holder of riveted passes through shaping mould and blanking cutter successively, completes moulding and blanking processing.
2. the processing method of carbon brush frame for motor according to claim 1, is characterized in that: described the first terminal has the first kink and the second kink; Before the first terminal material strip moves to the first riveting drift pressing mold, the first terminal of determining that liquidates carries out curved pressing formation for the first time, makes the first terminal form the first kink.
3. the processing method of carbon brush frame for motor according to claim 1, is characterized in that: described the second terminal has two bending shell fragments; Before the second terminal material belt moves to the first riveting drift pressing mold, the second terminal determined that liquidates carries out curved pressing formation, makes the second terminal form the ligulate shell fragment of two bendings.
4. the processing method of carbon brush frame for motor according to claim 1, it is characterized in that: the some lower salient point of the described first pre-riveted construction for stamping out on the first terminal material strip, the described second pre-riveted construction is salient point on stamp out on the first terminal material strip some, the described the 3rd pre-riveted construction is some holes of matching with described lower salient point of stamping out on the second terminal material belt, the described the 4th pre-riveted construction be on the 3rd terminal material belt, stamp out with described on salient point some holes of matching.
5. the processing method of carbon brush frame for motor according to claim 1, is characterized in that: described the first terminal material strip is brass material strip, and described the second terminal material belt and the 3rd terminal material belt are beryllium copper material strip.
6. the process equipment of a carbon brush frame for motor, it is characterized in that: comprise workbench, this workbench is provided with the first feeding guide for installing and transmit the first terminal material strip, for installing and transmit the second feeding guide of the second terminal material belt and for installing and transmit the 3rd feeding guide of the 3rd terminal material belt; This first feeding guide and the second feeding guide are in a certain angle to intersect, and intersection is provided with the first riveting drift pressing mold; This first feeding guide and the 3rd feeding guide be in a certain angle intersecting also, and intersection is provided with the second riveting drift pressing mold; Along the direction of transfer of the first feeding guide, the first feeding guide outside before the first riveting drift pressing mold is provided with blanking die, stamping die and curved pressing mold, and the first feeding guide outside after the second riveting drift pressing mold is provided with shaping mould and blanking cutter; Along the direction of transfer of the second feeding guide, in the second feeding guide outside, be provided with blanking die, stamping die, curved pressing mold and cutter; Along the direction of transfer of the 3rd feeding guide, in the 3rd feeding guide outside, be provided with blanking die, stamping die and cutter.
7. the process equipment of carbon brush frame for motor according to claim 6, is characterized in that: the head end of described the first feeding guide is provided with the first feed arrangement, and tail end is provided with material collecting device; The head end of described the second feeding guide is provided with the second feed arrangement; The head end of described the 3rd feeding guide is provided with the 3rd feed arrangement.
8. the process equipment of carbon brush frame for motor according to claim 6, it is characterized in that: the stamping die in the first feeding guide outside before the first riveting drift pressing mold comprises stamping die and lower stamping die, the some lower salient point that on this, stamping die can stamp out on the first terminal material strip, this lower stamping die can stamp out on the first terminal material strip some on salient point.
9. according to the process equipment of the carbon brush frame for motor described in any one claim in claim 6～8, it is characterized in that: described the first feeding guide is positioned at the horizontal of workbench, the left side that described the second feeding guide is positioned at workbench is oblique, and described the 3rd feeding guide is oblique in the right side of workbench.
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| CN201210105191.9A CN102610978B (en) | 2012-04-12 | 2012-04-12 | Method and device for machining motor carbon brush carrier |
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| CN201210105191.9A CN102610978B (en) | 2012-04-12 | 2012-04-12 | Method and device for machining motor carbon brush carrier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105363939A (en) * | 2014-08-11 | 2016-03-02 | 固笙企业有限公司 | A method for combining heat dissipation aluminum boxes and heat dissipation fins and insert pins |
| CN104485562B (en) * | 2014-12-22 | 2016-08-31 | 东莞市富基自动化设备有限公司 | A kind of brush holder production line |
| CN105537433B (en) * | 2016-03-03 | 2017-10-17 | 厦门鑫河精密科技股份有限公司 | Switch shrapnel automatic producing device |
| CN105720447A (en) * | 2016-03-22 | 2016-06-29 | 安徽孟凌精密电子有限公司 | Manufacturing method of motor carbon brush |
| CN106311902B (en) * | 2016-10-21 | 2018-06-08 | 福州晟鑫机械有限公司 | The riveted molding die and riveted moulding process of sander carbon brush holder carbon brush workpiece |
| CN108296655B (en) * | 2017-12-25 | 2020-02-28 | 大族激光科技产业集团股份有限公司 | Assembling and positioning jig, laser welding machine and working method thereof |
| CN111545645A (en) * | 2020-06-08 | 2020-08-18 | 深圳市亿和精密科技集团有限公司 | Punching die for punching, riveting and one-step forming |
| CN112671178B (en) * | 2021-01-12 | 2022-07-12 | 捷和电机制品(深圳)有限公司 | Carbon brush assembly, direct current motor and manufacturing method of carbon brush assembly |
| CN116995512B (en) * | 2023-09-28 | 2023-12-26 | 江苏艾锐博精密金属科技有限公司 | Stamping process of in-mold riveting wire clamping terminal |
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| JPS5328401U (en) * | 1976-08-19 | 1978-03-10 | ||
| CN1237020A (en) * | 1999-06-16 | 1999-12-01 | 江鸿仁 | Method for manufacturing improved conducting copper holder of carbon brush for motor |
| CN101162820B (en) * | 2007-08-31 | 2010-05-26 | 东莞市林远实业有限公司 | Manufacturing method of DC electric machine carbon brush holder |
| CN202662955U (en) * | 2012-04-12 | 2013-01-09 | 东莞市林远实业有限公司 | Motor carbon brush holder processing apparatus |
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Effective date of registration: 20230406 Address after: Room 204, Building 4, No. 2 Zhugongling Third Road, Tangxia Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Linheng Technology Co.,Ltd. Address before: Tangxia Town, Guangdong city of Dongguan province 523000 Qing Lake Industrial Zone Patentee before: DONGGUAN LINYUAN INDUSTRY Co.,Ltd. |