CN103157905B - Motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process - Google Patents
Motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process Download PDFInfo
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- CN103157905B CN103157905B CN201310124846.1A CN201310124846A CN103157905B CN 103157905 B CN103157905 B CN 103157905B CN 201310124846 A CN201310124846 A CN 201310124846A CN 103157905 B CN103157905 B CN 103157905B
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Abstract
The invention discloses a kind of motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process, comprise the steps: 1) motor for cell phone end-cap assembly is assembled in after on mould turnover bar, and mould is had enough to meet the need bar and be placed on the workbench of laser-beam welding machine; 2) use described laser-beam welding machine to carry out laser weld to conducting terminal copper sheet and brush pin, and the output frequency of laser-beam welding machine is 1-100Hz, speed of welding is 10-13mm/s.Motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process, by adopting output frequency to be the laser-beam welding machine of 1-100Hz, during welding, the conducting terminal copper sheet and the brush pin moment under laser high temperature action that are positioned at welding region melt completely, and realize being welded to connect between conducting terminal copper sheet and brush pin, have that residual stress is little, pad firmly and not easily occurs that pad apparent size is not of uniform size and causes, rosin joint, the bad phenomenon such as end-cap assembly scald.
Description
Technical field
The invention belongs to laser welding technology field, be specifically related to a kind of motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process.
Background technology
The conducting terminal copper sheet of existing motor for cell phone end-cap assembly all adopts soldering with welding between brush pin, although soldering technique can meet being welded and fixed between conducting terminal copper sheet and brush pin to a certain extent, also there is following problem:
1, because the Fundamentals of Welding of soldering are tin silk fusing rear connection conducting terminal copper sheet and brush pin, and soldering tin amount is wayward, soldering tin amount too much can cause tin to starch outflow to be connected with casing and to cause motor to leak electricity, and tin point is crossed conference and caused left and right terminal tin point to be interconnected, and causes motor short circuit;
2, because tin silk fusing point is 232 DEG C, cross the furnace temperature 240-250 DEG C of reflow ovens lower than motor, tin point local is dissolved, cause tin to be starched being connected with casing or left and right terminal connects, cause motor electric leakage, short circuit;
3, adopt soldering, due to the scolding tin time and spot size wayward, easily cause end cap to scald, affect end cap service life, and easily there is rosin joint, scolding tin deficiency, the scolding tin defect such as taro is welded, tin lights angle, tin amount is too much, quality is wayward;
4, in soldering process, conducting terminal copper sheet directly adopts scolding tin and brush to be connected and fixed, and easily produces gap between conducting terminal copper sheet and end cap binding face, causes terminal flatness bad, and then causes the unfavorable condition such as rosin joint and terminal removal;
5, solder joint is excessive causes motor overall length overlength, is unfavorable for the assembling of motor for cell phone.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process, this laser welding process can meet being welded and fixed between SMT motor for cell phone conducting terminal copper sheet and brush pin, and welding quality is better.
For achieving the above object, the invention provides following technical scheme:
A kind of motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process, comprise the steps:
1) motor for cell phone end-cap assembly is assembled in after on mould turnover bar, and mould is had enough to meet the need bar and be placed on the workbench of laser-beam welding machine;
2) use described laser-beam welding machine to carry out laser weld to conducting terminal copper sheet and brush pin, and the output frequency of laser-beam welding machine is 1-100Hz, speed of welding is 10-13mm/s.
Further, described in step 1), mould turnover bar comprises brush spacing limiting plate, described brush spacing limiting plate both sides are respectively equipped with left pressing plate and right pressing plate, the left brush material strip for installing left brush pin is provided with between described left pressing plate and brush spacing limiting plate, the right brush material strip for installing right brush pin is provided with between described right pressing plate and brush spacing limiting plate, described left pressing plate is fixed with alignment pin, described left brush material strip, brush spacing limiting plate, between right brush material strip and right pressing plate, is equipped with the dowel hole with detent fit.
Further, described step 1) comprises:
A) left brush pin and right brush pin are arranged on described left brush material strip and right brush material strip respectively, and utilize alignment pin that left brush material strip and right brush material strip are pressed abd fixed on the both sides of described brush spacing limiting plate respectively;
B) end cap is inserted on left brush pin and right brush pin, by conducting terminal copper sheet location and installation on end cap, namely completes and motor for cell phone end-cap assembly is assembled on mould turnover bar;
C) mould is had enough to meet the need bar to be placed on the workbench of laser-beam welding machine.
Further, the output frequency of described laser-beam welding machine is 50Hz, and welding current is 70-80mA, and laser spot diameter is 0.1mm, and welding pulsewidth is 3.5-4.5ms.
Beneficial effect of the present invention is:
Motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process, by adopting output frequency to be the laser-beam welding machine of 1-100Hz, during welding, the conducting terminal copper sheet and the brush pin moment under laser high temperature action that are positioned at welding region melt completely, and realize being welded to connect between conducting terminal copper sheet and brush pin, compared to existing soldering process, motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process have the following advantages:
1, the speed of laser weld is faster, and can reach the throughput rate of a welding per second motor for cell phone end-cap assembly, production efficiency is higher;
2, effectively can control the size of solder joint, namely the solder joint of laser weld is little, little to the size impact of motor for cell phone, ensures that the size Control of motor for cell phone is in design size scope, is convenient to the follow-up assembling of motor for cell phone;
3, because the fusing point of copper is 1083 DEG C, higher than the furnace temperature 240-250 DEG C of reflow ovens, when adopting laser spot welding that motor can be avoided to cross reflow ovens, the bad phenomenon such as motor electric leakage, short circuit are caused because tin point dissolves;
4, because conducting terminal copper sheet and brush pin moment under laser high temperature action melts completely, and realize being welded to connect, after solder joint cooling, have that residual stress is little, firm welding, can avoid occurring that pad apparent size is not of uniform size and cause, rosin joint, the bad phenomenon such as end-cap assembly scald.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is the structural representation that the mould being applicable to motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process has enough to meet the need bar;
Fig. 2 is the motor for cell phone structural representation adopting motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention to weld with brush pin laser welding process;
Fig. 3 is the left view of Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process, comprise the steps:
1) motor for cell phone end-cap assembly is assembled in after on mould turnover bar, and mould is had enough to meet the need bar and be placed on the workbench of laser-beam welding machine, concrete, as shown in Figure 1, mould turnover bar comprises brush spacing limiting plate 1, brush spacing limiting plate 1 both sides are respectively equipped with left pressing plate 2 and right pressing plate 3, the left brush material strip 5 for installing left brush pin 4 is provided with between left pressing plate 2 and brush spacing limiting plate 1, the right brush material strip 7 for installing right brush pin 6 is provided with between right pressing plate 3 and brush spacing limiting plate 1, left pressing plate 2, the end face of brush spacing limiting plate 1 and right pressing plate 3 is provided with the groove 9 for installing end cap 8, left pressing plate 2 is fixed with alignment pin 10, left brush material strip 5, brush spacing limiting plate 1, the dowel hole 11 coordinated with alignment pin 10 is equipped with between right brush material strip 7 and right pressing plate 3, mould can be had enough to meet the need bar by alignment pin 10 to be mounted with and to be integrated, concrete, by following steps, motor for cell phone end-cap assembly is assembled on mould turnover bar:
A) left brush pin 4 and right brush pin 6 are arranged on left brush material strip 5 and right brush material strip 7 respectively, and utilize alignment pin 10 that left brush material strip 5 and right brush material strip 7 are pressed abd fixed on the both sides of brush spacing limiting plate 1 respectively;
B) end cap 8 to be inserted on left brush pin 4 and right brush pin 6 and to be placed in groove 9, and by conducting terminal copper sheet 12 location and installation on end cap 8, namely completing and motor for cell phone end-cap assembly is assembled on mould turnover bar;
C) mould is had enough to meet the need bar to be placed on the workbench of laser-beam welding machine.
2) use laser-beam welding machine to carry out laser weld to conducting terminal copper sheet and brush pin, and the output frequency of laser-beam welding machine is 1-100Hz, speed of welding is 10-13mm/s, welds more firm.
Motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process, by adopting output frequency to be the laser-beam welding machine of 1-100Hz, during welding, the conducting terminal copper sheet 12 and groove 9 moment under laser high temperature action that are positioned at welding region melt completely, and realize being welded to connect between conducting terminal copper sheet and brush pin, compared to existing soldering process, motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process have the following advantages:
1, the speed of laser weld is faster, and can reach the throughput rate of a welding per second motor for cell phone end-cap assembly, production efficiency is higher;
2, effectively can control the size of solder joint, namely the solder joint of laser weld is little, little to the size impact of motor for cell phone, ensures that the size Control of motor for cell phone is in design size scope, is convenient to the follow-up assembling of motor for cell phone;
3, because the fusing point of copper is 1083 DEG C, higher than the furnace temperature 240-250 DEG C of reflow ovens, when adopting laser spot welding that motor can be avoided to cross reflow ovens, the bad phenomenon such as motor electric leakage, short circuit are caused because tin point dissolves;
4, because conducting terminal copper sheet and brush pin moment under laser high temperature action melts completely, and realize being welded to connect, after solder joint cooling, have that residual stress is little, firm welding, can avoid occurring that pad apparent size is not of uniform size and cause, rosin joint, the bad phenomenon such as end-cap assembly scald.
First embodiment
In the motor for cell phone end-cap assembly conducting terminal copper sheet of the present embodiment and brush pin laser welding process, motor for cell phone end-cap assembly is assembled in after on mould turnover bar, the laser weld parameters adopted is: the output frequency of laser-beam welding machine is 50Hz, speed of welding is 10mm/s, when welding, welding current is 80mA, laser spot diameter is 0.1mm, pulsewidth---namely the welding duration of each pad is 4ms in welding, can meet to be welded to connect requirement between conducting terminal copper sheet and brush pin.
Second embodiment
In the motor for cell phone end-cap assembly conducting terminal copper sheet of the present embodiment and brush pin laser welding process, motor for cell phone end-cap assembly is assembled in after on mould turnover bar, the laser weld parameters adopted is: the output frequency of laser-beam welding machine is 1Hz, speed of welding is 13mm/s, when welding, welding current is 70mA, laser spot diameter is 0.1mm, pulsewidth---namely the welding duration of each pad is 3.5ms in welding, can meet to be welded to connect requirement between conducting terminal copper sheet and brush pin.
3rd embodiment
In the motor for cell phone end-cap assembly conducting terminal copper sheet of the present embodiment and brush pin laser welding process, motor for cell phone end-cap assembly is assembled in after on mould turnover bar, the laser weld parameters adopted is: the output frequency of laser-beam welding machine is 100Hz, speed of welding is 12mm/s, when welding, welding current is 75mA, laser spot diameter is 0.1mm, pulsewidth---namely the welding duration of each pad is 4.5ms in welding, can meet to be welded to connect requirement between conducting terminal copper sheet and brush pin.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (3)
1. motor for cell phone end-cap assembly conducting terminal copper sheet and a brush pin laser welding process, is characterized in that: comprise the steps:
1) motor for cell phone end-cap assembly is assembled in after on mould turnover bar, mould is had enough to meet the need bar and be placed on the workbench of laser-beam welding machine;
2) use described laser-beam welding machine to carry out laser weld to conducting terminal copper sheet and brush pin, and the output frequency of laser-beam welding machine is 1-100Hz, speed of welding is 10-13mm/s;
Step 1) described mould turnover bar comprises brush spacing limiting plate, described brush spacing limiting plate both sides are respectively equipped with left pressing plate and right pressing plate, the left brush material strip for installing left brush pin is provided with between described left pressing plate and brush spacing limiting plate, the right brush material strip for installing right brush pin is provided with between described right pressing plate and brush spacing limiting plate, described left pressing plate is fixed with alignment pin, described left brush material strip, brush spacing limiting plate, between right brush material strip and right pressing plate, is equipped with the dowel hole with detent fit.
2. motor for cell phone end-cap assembly conducting terminal copper sheet according to claim 1 and brush pin laser welding process, is characterized in that: described step 1) comprising:
A) left brush pin and right brush pin are arranged on described left brush material strip and right brush material strip respectively, and utilize alignment pin that left brush material strip and right brush material strip are pressed abd fixed on the both sides of described brush spacing limiting plate respectively;
B) end cap is inserted on left brush pin and right brush pin, by conducting terminal copper sheet location and installation on end cap, namely completes and motor for cell phone end-cap assembly is assembled on mould turnover bar;
C) mould is had enough to meet the need bar to be placed on the workbench of laser-beam welding machine.
3. motor for cell phone end-cap assembly conducting terminal copper sheet according to claim 2 and brush pin laser welding process, it is characterized in that: the output frequency of described laser-beam welding machine is 50Hz, welding current is 70-80mA, and laser spot diameter is 0.1mm, and welding pulsewidth is 3.5-4.5ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310124846.1A CN103157905B (en) | 2013-04-11 | 2013-04-11 | Motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310124846.1A CN103157905B (en) | 2013-04-11 | 2013-04-11 | Motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process |
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| Publication Number | Publication Date |
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| CN103157905A CN103157905A (en) | 2013-06-19 |
| CN103157905B true CN103157905B (en) | 2015-08-12 |
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| CN201310124846.1A Active CN103157905B (en) | 2013-04-11 | 2013-04-11 | Motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741784A (en) * | 2013-12-25 | 2015-07-01 | 张方浩 | Metal welding process of diagonal pliers |
| CN113714641A (en) * | 2021-07-28 | 2021-11-30 | 武汉逸飞激光股份有限公司 | Conductive terminal welding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2579023Y (en) * | 2002-10-25 | 2003-10-08 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN101652221A (en) * | 2008-03-17 | 2010-02-17 | 飞腾株式会社 | Laser soldering device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60237833A (en) * | 1984-05-08 | 1985-11-26 | Mabuchi Motor Co Ltd | Brush device for small type motor |
| JPS61132286A (en) * | 1984-11-30 | 1986-06-19 | Toshiba Corp | Brush holding material for micromotor |
| JP2010011601A (en) * | 2008-06-25 | 2010-01-14 | Mitsuba Corp | Terminal unit for electric motor |
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2013
- 2013-04-11 CN CN201310124846.1A patent/CN103157905B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2579023Y (en) * | 2002-10-25 | 2003-10-08 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN101652221A (en) * | 2008-03-17 | 2010-02-17 | 飞腾株式会社 | Laser soldering device |
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