CN103157905A - Laser welding process of mobile phone motor end cover component conductive terminal copper piece and electric brush pins - Google Patents
Laser welding process of mobile phone motor end cover component conductive terminal copper piece and electric brush pins Download PDFInfo
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- CN103157905A CN103157905A CN2013101248461A CN201310124846A CN103157905A CN 103157905 A CN103157905 A CN 103157905A CN 2013101248461 A CN2013101248461 A CN 2013101248461A CN 201310124846 A CN201310124846 A CN 201310124846A CN 103157905 A CN103157905 A CN 103157905A
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Abstract
The invention discloses a laser welding process of a mobile phone motor end cover component conductive terminal copper piece and electric brush pins. The laser welding process of the mobile phone motor end cover component conductive terminal copper piece and the electric brush pins comprises the following steps of assembling a mobile phone motor end cover component on a die turnover strip and placing the die turnover strip on a work platform of a laser welding machine; and conducting laser welding to the conductive terminal copper piece and the electric brush pins through the laser welding machine. Moreover the output frequency of the laser welding machine is 1-100 Hz, and the welding speed is 10-13 mm / s. According to the laser welding process of the mobile phone motor end cover component conductive terminal copper piece and the electric brush pins, the laser welding machine with 1-100 Hz output frequency is adopted, when welding is conducted, the conductive terminal copper piece and the electric brush pins melt instantly and completely under the action of high temperature of laser in a welding area, and welding connection of the conductive terminal copper piece and the electric brush pins is achieved. The laser welding process of the mobile phone motor end cover component conductive terminal copper piece and the electric brush pins has the advantages that residual stress is small, welding points are firm, and the bad phenomena that outer sizes of the welding points are not consistent, solder is insufficient, the end cover component is burned are not prone to appearing.
Description
Technical field
The invention belongs to the 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
Soldering is all adopted in the conducting terminal copper sheet of existing motor for cell phone end-cap assembly and the welding between the brush pin, although soldering technique can satisfy being welded and fixed between conducting terminal copper sheet and brush pin to a certain extent, also has following problem:
1, the Fundamentals of Welding due to soldering are rear conducting terminal copper sheet and the brush pin of connecting of tin silk fusing, and soldering tin amount is wayward, soldering tin amount can cause too much that tin slurry outflow is connected with casing and cause motor to leak electricity, and tin was put conference and caused left and right terminal tin point to interconnect, and caused the motor short circuit;
2, because tin silk fusing point is 232 ℃, cross reflow ovens lower than motor furnace temperature 240-250 ℃, tin point part is dissolved, cause the tin slurry to be connected with casing or the connection of left and right terminal, cause that motor leaks electricity, 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 rosin joint easily appears, the scolding tin defective such as scolding tin is not enough, taro is welded, tin is lighted the angle, the tin amount is too much, quality is wayward;
4, in the soldering process, the conducting terminal copper sheet directly adopts scolding tin and brush to be connected and fixed, and easily produces the gap between conducting terminal copper sheet and end cap binding face, causes the terminal flatness bad, and then causes the unfavorable conditions such as rosin joint and terminal come off;
5, the excessive motor overall length overlength that causes of solder joint, be 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 satisfy 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) after the motor for cell phone end-cap assembly being assembled on mould turnover bar, and mould is had enough to meet the need on the workbench that bar is placed on 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, the described mould turnover of step 1) bar comprises brush spacing limiting plate, described brush spacing limiting plate both sides are respectively equipped with left pressing plate and right pressing plate, be provided with between described left pressing plate and brush spacing limiting plate be used to the left brush strip that left brush pin is installed, be provided with between described right pressing plate and brush spacing limiting plate be used to the right brush strip that right brush pin is installed, be fixed with alignment pin on described left pressing plate, be equipped with the dowel hole that coordinates with alignment pin between described left brush strip, brush spacing limiting plate, right brush strip and right pressing plate.
Further, described step 1) comprises:
A) left brush pin and right brush pin are arranged on respectively on described left brush strip and right brush strip, and utilize alignment pin left brush strip and right brush strip to be pressed abd fixed on respectively the both sides of described brush spacing limiting plate;
B) end cap is inserted on left brush pin and right brush pin, conducting terminal copper sheet location and installation on end cap, is completed that namely the motor for cell phone end-cap assembly is assembled on mould turnover bar;
C) mould is had enough to meet the need on the workbench that bar is placed on 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 the 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, be the laser-beam welding machine of 1-100Hz by adopting output frequency, during welding, the conducting terminal copper sheet and the brush pin moment under the laser high temperature action that are positioned at welding region melt fully, and realize being welded to connect between conducting terminal copper sheet and brush pin, compared to existing soldering technique, 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, can reach the throughput rate of a motor for cell phone end-cap assembly of per second welding, and production efficiency is higher;
2, can effectively control the size of solder joint, namely the solder joint of laser weld is little, and is little to the size impact of motor for cell phone, and the size Control of assurance motor for cell phone is convenient to the follow-up assembling of motor for cell phone in the design size scope;
3, the fusing point due to copper is 1083 ℃, higher than furnace temperature 240-250 ℃ of reflow ovens, dissolves because of the tin point bad phenomenon such as causing motor electric leakage, short circuit when adopting laser spot welding can avoid motor to cross reflow ovens;
4, moment under the laser high temperature action melts fully due to conducting terminal copper sheet and brush pin, and realize being welded to connect, have after solder joint is cooling that residual stress is little, firm welding, can avoid occurring that the pad apparent size is not of uniform size causes, rosin joint, the bad phenomenon such as end-cap assembly scald.
Description of drawings
In order to make purpose of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:
Fig. 1 is the structural representation that is applicable to the mould turnover bar of motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process;
Fig. 2 is for adopting the motor for cell phone structural representation of motor for cell phone end-cap assembly conducting terminal copper sheet of the present invention and brush pin laser welding process welding;
Fig. 3 is the left view of Fig. 2.
The specific embodiment
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) after the motor for cell phone end-cap assembly being assembled on mould turnover bar, and mould is had enough to meet the need on the workbench that bar is placed on 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, be provided with between left pressing plate 2 and brush spacing limiting plate 1 be used to the left brush strip 5 that left brush pin 4 is installed, be provided with between right pressing plate 3 and brush spacing limiting plate 1 be used to the right brush strip 7 that right brush pin 6 is installed, left pressing plate 2, the end face of brush spacing limiting plate 1 and right pressing plate 3 is provided with for the groove 9 that end cap 8 is installed, be fixed with alignment pin 10 on left pressing plate 2, left brush strip 5, brush spacing limiting plate 1, be equipped with the dowel hole 11 that coordinates with alignment pin 10 between right brush strip 7 and right pressing plate 3, mould can be had enough to meet the need bar by alignment pin 10 is mounted with and is integrated, concrete, by following steps, the 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 respectively on left brush strip 5 and right brush strip 7, and utilize alignment pin 10 left brush strip 5 and right brush strip 7 to be pressed abd fixed on respectively the both sides of brush spacing limiting plate 1;
B) end cap 8 be inserted on left brush pin 4 and right brush pin 6 and be placed in groove 9, and with conducting terminal copper sheet 12 location and installation on end cap 8, complete that namely the motor for cell phone end-cap assembly is assembled on mould turnover bar;
C) mould is had enough to meet the need on the workbench that bar is placed on 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, be the laser-beam welding machine of 1-100Hz by adopting output frequency, during welding, the conducting terminal copper sheet 12 and groove 9 moment under the laser high temperature action that are positioned at welding region melt fully, and realize being welded to connect between conducting terminal copper sheet and brush pin, compared to existing soldering technique, 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, can reach the throughput rate of a motor for cell phone end-cap assembly of per second welding, and production efficiency is higher;
2, can effectively control the size of solder joint, namely the solder joint of laser weld is little, and is little to the size impact of motor for cell phone, and the size Control of assurance motor for cell phone is convenient to the follow-up assembling of motor for cell phone in the design size scope;
3, the fusing point due to copper is 1083 ℃, higher than furnace temperature 240-250 ℃ of reflow ovens, dissolves because of the tin point bad phenomenon such as causing motor electric leakage, short circuit when adopting laser spot welding can avoid motor to cross reflow ovens;
4, moment under the laser high temperature action melts fully due to conducting terminal copper sheet and brush pin, and realize being welded to connect, have after solder joint is cooling that residual stress is little, firm welding, can avoid occurring that the pad apparent size is not of uniform size causes, rosin joint, the bad phenomenon such as end-cap assembly scald.
The first embodiment
In the motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process of the present embodiment, after being assembled in the motor for cell phone end-cap assembly on mould turnover bar, the laser weld parameter that adopts 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---the welding duration that is each pad is 4ms in welding, can satisfy the requirement that is welded to connect between conducting terminal copper sheet and brush pin.
The second embodiment
In the motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process of the present embodiment, after being assembled in the motor for cell phone end-cap assembly on mould turnover bar, the laser weld parameter that adopts 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---the welding duration that is each pad is 3.5ms in welding, can satisfy the requirement that is welded to connect between conducting terminal copper sheet and brush pin.
The 3rd embodiment
In the motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process of the present embodiment, after being assembled in the motor for cell phone end-cap assembly on mould turnover bar, the laser weld parameter that adopts 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---the welding duration that is each pad is 4.5ms in welding, can satisfy the requirement that is welded to connect between conducting terminal copper sheet and brush pin.
Explanation is at last, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from claims limited range of the present invention.
Claims (4)
1. a motor for cell phone end-cap assembly conducting terminal copper sheet and brush pin laser welding process, is characterized in that: comprise the steps:
1) after the motor for cell phone end-cap assembly being assembled on mould turnover bar, mould is had enough to meet the need on the workbench that bar is placed on 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.
2. motor for cell phone end-cap assembly conducting terminal copper sheet according to claim 1 and brush pin laser welding process, it is characterized in that: the described mould turnover of step 1) bar comprises brush spacing limiting plate, described brush spacing limiting plate both sides are respectively equipped with left pressing plate and right pressing plate, be provided with between described left pressing plate and brush spacing limiting plate be used to the left brush strip that left brush pin is installed, be provided with between described right pressing plate and brush spacing limiting plate be used to the right brush strip that right brush pin is installed, be fixed with alignment pin on described left pressing plate, described left brush strip, brush spacing limiting plate, be equipped with the dowel hole that coordinates with alignment pin between right brush strip and right pressing plate.
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: described step 1) comprises:
A) left brush pin and right brush pin are arranged on respectively on described left brush strip and right brush strip, and utilize alignment pin left brush strip and right brush strip to be pressed abd fixed on respectively the both sides of described brush spacing limiting plate;
B) end cap is inserted on left brush pin and right brush pin, conducting terminal copper sheet location and installation on end cap, is completed that namely the motor for cell phone end-cap assembly is assembled on mould turnover bar;
C) mould is had enough to meet the need on the workbench that bar is placed on laser-beam welding machine.
4. motor for cell phone end-cap assembly conducting terminal copper sheet according to claim 3 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 the 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 |
|---|---|
| CN103157905A true CN103157905A (en) | 2013-06-19 |
| CN103157905B CN103157905B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (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 (5)
| 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 |
| CN2579023Y (en) * | 2002-10-25 | 2003-10-08 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| JP2010011601A (en) * | 2008-06-25 | 2010-01-14 | Mitsuba Corp | Terminal unit for electric motor |
| CN101652221A (en) * | 2008-03-17 | 2010-02-17 | 飞腾株式会社 | Laser soldering device |
-
2013
- 2013-04-11 CN CN201310124846.1A patent/CN103157905B/en active Active
Patent Citations (5)
| 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 |
| 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 |
| JP2010011601A (en) * | 2008-06-25 | 2010-01-14 | Mitsuba Corp | Terminal unit for electric motor |
Cited By (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 |
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| Publication number | Publication date |
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| CN103157905B (en) | 2015-08-12 |
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