CN103874405B - The part pick-up head of surface-mount devices - Google Patents
The part pick-up head of surface-mount devices Download PDFInfo
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- CN103874405B CN103874405B CN201310544856.0A CN201310544856A CN103874405B CN 103874405 B CN103874405 B CN 103874405B CN 201310544856 A CN201310544856 A CN 201310544856A CN 103874405 B CN103874405 B CN 103874405B
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- axle
- elastomer
- axle sleeve
- head
- main body
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- 229920001971 elastomer Polymers 0.000 claims abstract description 59
- 239000000806 elastomer Substances 0.000 claims abstract description 59
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000000758 substrate Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The present invention provides a kind of part pick-up head of surface-mount devices, and the part pick-up head includes：Head main body；Axle sleeve, can rotate relative to the central shaft of axle sleeve and be fixed on direction up and down relative to head main body in the head main body；Axle, fix relative to the central shaft of axle sleeve and can be moved in direction up and down relative to the axle sleeve in a rotational direction；Part pick tool, on the lower end of the axle and pick-up part；First elastomer, installed in the top of the axle；Elastomeric support component, support the lower end of first elastomer；Elastomer fixing component, support the upper end of first elastomer；Wherein, the axle is fixed to the elastomer fixing component, and wherein the second elastomer is arranged between elastomeric support component and axle sleeve, the downside of elastomeric support component is supported, and the second elastomer and the head main body separate when not applying the pressure for moving downward axle.
Description
This application claims Korea Spro 10-2013-0009456 submitted on January 28th, 2013 in Korean Intellectual Property Office
State's patent application and the power for the 2012-273631 Japanese patent applications submitted on December 24th, 2012 in Japan Office
Benefit, the disclosure of described two applications are all incorporated herein by quoting.
Technical field
The present invention relates to one kind by part（Such as integrated circuit（IC）Chip）Surface-mount devices on substrate
Part pick-up head, more particularly, be related to a kind of part pick-up head of pick-up part.
Background technology
Surface-mount devices are by using with part pick tool（For example, ozzle）Part pick-up head pick-up part supply
The part in unit is answered, the part that will remain in pick-up situation is sent on substrate, and part is arranged on to the pre-determined bit of substrate
Put.
As part pick-up head, multiple axles are rotatably installed in along the direction T around axis same in a main body
When make the multiple axle in direction Z（Direction up and down）On can be moved along axis direction and by part pick tool
（For example, ozzle）Construction installed in the lower end of the axle is known（For example, 2010-157635 Japanese patent applications
Announce）.As for make axle along make while direction T rotations around axis axle relative to axis direction along direction Z
（Direction up and down）The instrument that can be moved, ball spline instrument are known as representative（For example, 2002-
No. 370186 Japan patent applicant announces）.The present inventor has carried in 2011-285821 Japanese patent applications
A kind of instrument for substituting ball spline instrument is gone out.
Fig. 4 is the portion for the instrument for including the 2011-285821 Japanese patent applications by the present inventor's proposition
The schematic sectional view of the critical piece of part pick-up head.The part that the axle sleeve 200 of hollow shape is arranged on surface-mount devices picks up
In the head main body 100 of head, axle 300 is arranged in axle sleeve 200, and ozzle 400 is arranged on the leading edge of axle 300 as part pick tool
On.Fig. 4 part pick-up head is rotary-type part pick-up head, circle of multiple axles along the head main body 100 with cylinder form
It is arranged in week in part pick-up head, and head main body 100 rotates along the direction R around axis.
Axle 300 passes through the axle sleeve 200 with cylindrical shape and relative to axle sleeve 200 along the direction relative to axis
Z（Direction up and down）It is movable, while is installed into along the direction T around axis and does not rotate.
Although axle sleeve 200 is relative to head main body 100 in direction up and down（Direction Z）On be not movable, but
It is that axle sleeve 200 is installed to be and has bearing 210 in the position of upper and lower part, so, axle sleeve 200 is along around the direction of axis
T is rotatable.In order that direction T rotation of the axle sleeve 200 along the axis around axle 300, gear 220 are arranged on axle sleeve 200
Circumference on.It is connected to motor（It is not shown）Drive gear engaged with gear 220 so that drive gear rotate so that
Axle sleeve 200 is obtained to rotate along the direction T of the axis around axle 300 relative to head main body 100.Therefore, axle 300 and axle sleeve 200 1
Body simultaneously rotates along the direction T around axis.
Helical spring 500 is disposed around the top circumference projected upwards from axle sleeve 200 of axle 300.Helical spring 500
Lower end supported by the spring base 510 for fixing main body 100 to the end, and the upper end of helical spring 500 is by Spring retainer 520
Hold.Spring retainer 520 is installed to be the circumference around axle 300, and bearing 530 is arranged on Spring retainer 520 and axle 300
Between.
According to above-mentioned construction, helical spring 500 gives the applying power of axle 300 along upwardly direction so that axle 300 is transported upwards
It is dynamic.Therefore, axle 300 is resiliently biased to the position of topmost always.When axle 300 declines, it is arranged on and is fixed to axle 300
Upper end spindle nose 310 on pressure member 600 be pressed.Therefore, axle 300 is resisted the elastic force of helical spring 500 and declined.
However, in the configuration in figure 4, because the lower end of helical spring 500 is by fixing the spring base 510 of main body 100 to the end
Support, therefore direction T of the helical spring 500 along the axis around axle 300 does not rotate.Therefore, axle 300 is allowed along direction
T is rotated, it is necessary to bearing 530 is arranged between the Spring retainer 520 and axle 300 of the upper end for supporting helical spring 500,
This adds increased the quantity of required part so that cost increase.
By the precompression depending on helical spring 500（Towards the power of upwardly direction）Bearing 530 is applied to, therefore, when
Axle 300 along direction T rotate when, in bearing 530 and axle 300（Spindle nose 310）Between produce frictional resistance.Therefore, it is necessary to increase
Make driving force of the axle 300 along the direction T motors rotated, therefore the size of motor is big.
Right overhead main body 100 along direction R rotate when, axle 300 follows a main body 100 according to frictional resistance along direction T, from
And positional precision of the axle 300 along direction T is set to be deteriorated problematicly.
The above mentioned problem of Fig. 4 on the instrument including being proposed by the present inventor of description part pick-up head
It can occur in the part pick-up head using ball spline instrument.
Prior art discloses
Patent discloses
2010-157635 Japan patent applicant announces
2002-370186 Japan patent applicant announces
The content of the invention
The present invention provides a kind of part pick-up head of surface-mount devices, and the surface-mount devices make axle be led relative to head
Body moves along direction up and down, so as to be elastically biased toward friction caused by the precompression of axle along upwardly direction
The influence of resistance minimizes.
According to an aspect of the present invention, there is provided a kind of part pick-up head of surface-mount devices, the part pick-up head bag
Include：Head main body；Axle sleeve, can be rotated relative to the central shaft of axle sleeve in the head main body, and upwards and to
Under direction on fixed relative to head main body；Axle, fixed in a rotational direction relative to the central shaft of axle sleeve, and relative to institute
Stating axle sleeve can move on direction up and down；Part pick tool, installed in the lower end of the axle and pick-up part；
First elastomer, installed in the top of the axle；Elastomeric support component, support the lower end of first elastomer；Elastomer
Fixing component, support the upper end of first elastomer；Wherein, the axle is fixed to the elastomer fixing component, wherein the
Two elastomers are arranged between elastomeric support component and axle sleeve, support the downside of elastomeric support component, and ought not be applied
The second elastomer and the head main body separate during the pressure for moving downward axle.
Supporting part in head main body may be provided at the downside of elastomeric support component, and ought not apply and make axial direction
During the pressure of lower motion, elastomeric support component and supporting part can be separated from each other, and when axle moves downward, elastomeric support
Component and supporting part are in contact with each other.
The axle sleeve can be supported by the axle sleeve supporting part in head main body from downside.
First elastomer and the second elastomer may include compression helical spring.
Brief description of the drawings
The exemplary embodiment of the present invention is described in detail by referring to accompanying drawing, above and other of the invention is special
Point and advantage will become more apparent upon, wherein：
Fig. 1 is the schematic sectional view of the major part of part pick-up head according to an embodiment of the invention；
Fig. 2 is the schematic diagram from the axle of direction A Fig. 1 seen part pick-up head and the assembled portion of axle sleeve；
Fig. 3 be Fig. 2 part pick-up head axle decline state view；
Fig. 4 is the schematic sectional view of the major part of the part pick-up head by being proposed before the present inventor.
Embodiment
Hereinafter, present invention is described with reference to the accompanying drawings.As used herein, term "and/or" includes any and complete
One or more combination in the related project that portion lists.
Fig. 1 is the schematic sectional view of the major part of part pick-up head according to an embodiment of the invention.Fig. 2 is from side
The schematic diagram of the axle 30 of the Fig. 1 seen to A part pick-up head and the assembled portion of axle sleeve 20.Fig. 3 is Fig. 2 part pick-up head
The view of state that falls of axle 30.Fig. 4 is the major part of the part pick-up head by being proposed before the present inventor
Schematic sectional view.
The axle sleeve 20 of hollow shape is arranged in the head main body 10 of the part pick-up head of surface-mount devices, and axle 30 is arranged on axle
In set 20, ozzle 40 is arranged on as part pick tool in the leading edge of axle 30.Fig. 1 part pick-up head is that rotary-type part picks up
Head is taken, circumference of multiple axles along the head main body 10 with cylinder form is arranged in part pick-up head, and head main body 10
Rotated relative to central shaft along direction R.
Axle 30 passes through the axle sleeve 20 with cylindrical shape and relative to axle sleeve 20 along direction Z（Up and down
The bearing of trend in direction, the i.e. central shaft of axle 30）It is movable, while is installed into the central shaft not edge relative to axle sleeve 20
Direction of rotation T rotations.That is, axle 30 is fixed on the central shaft of axle sleeve 20 on the T of direction of rotation.In more detail
Say, as shown in FIG. 2, a pair of supporting members 31 are fixed to axle 30 and are inserted into form a pair of guide grooves in the top of axle sleeve 20
In 23.Because of this, axle 30 can in the range of guide groove 23 relative to axle sleeve 20 along direction up and down（Direction Z）
It is movable.
Axle 30 can not rotate relative to central shaft of the axle sleeve 20 on axle 30.That is, when axle sleeve 20 is relative to axle sleeve
During 20 central shaft rotation, axle 30 is integrally coupled in axle sleeve 20 and rotated relative to the central shaft of axle sleeve 20.
Although axle sleeve 20 is relative to head main body 10 in direction up and down（Direction Z）On can not move, but axle sleeve
20 are combined with axle 30, and have two bearings 31 to be arranged between axle sleeve 20 and axle 30 so that axle moves up and down, so so that axle sleeve
20 relative to axle sleeve 20 central shaft along direction of rotation T be rotatable.The lower end of axle sleeve 20 is by head main body 10
Axle sleeve supporting part 11 support.
Gear 22 is arranged on the periphery of axle sleeve 20 so that axle sleeve 20 revolves relative to the central shaft of axle sleeve 20 along direction of rotation T
Turn.It is connected to motor（It is not shown）Drive gear engage and rotate with gear 22 so that axle sleeve 20 is led relative to head
Body 10 rotates relative to the central shaft of axle sleeve 20 along direction of rotation T.Because of this, axle 30 is integrally coupled in axle sleeve 20 simultaneously
Rotated relative to the central shaft of axle sleeve 20 along direction of rotation T.
Setting includes the first elastomer 50 of compression helical spring, and compression helical spring is upward from axle sleeve 20 around axle 30
Prominent top circumference.The lower end of first elastomer 50 is supported by elastomeric support component 51, and the first elastomer 50 is upper
Supported by elastomer fixing component 52 at end.Elastomeric support component 51 is by the second elastomer 53 under elastomeric support component 51
Collateral support, the second elastomer 53 include the compression spiral being arranged between elastomeric support component 51 and the upper face of axle sleeve 20
Spring.Elastomer fixing component 52 is fixed to axle 30.
According to said structure, the first elastomer 50 and the second elastomer 53 are along making the direction that axle 30 moves upwards to axle 30
Applying power.Therefore, axle 30 is resiliently biased towards upper limit position always.When axle 30 declines, it is arranged on fixed to axle 30
Pressure member 60 on the spindle nose 32 of upper end is pressed.Because of this, axle 30 resists the first elastomer 50 and the second elastomer 53
Elastic force decline（Fig. 3）.
In this regard, as shown in fig. 1, in the state of the pressure for moving downward axle 30 is not applied, support the
The elastomeric support component 51 of the lower end of one elastomer 50 adjusts the elastic force of the first elastomer 50 and the second elastomer 53（Spring is normal
Number）Or their initial length is adjusted, so that the first elastomer 50 and the second elastomer 53 and the supporting part 12 of head main body 10 divide
Open.
As described above, the first elastomer 50 of elastomer fixing component 52 and support of the upper end of the first elastomer 50 of support
The elastomeric support component 51 of lower end separates with head main body 10, wherein, the first elastomer 50 is applied along upwardly direction to axle 30
Add precompression, and the first elastomer 50 and axle 30（Axle sleeve 20）Rotated relative to the central shaft of axle 30.It therefore, there is no need to
Bearing is installed between one elastomer and axle 30, so as to reduce the quantity of part.
It is as shown in Figure 1 do not apply the pressure for moving downward axle 30 in the state of, support under the first elastomer 50
The elastomeric support component 51 at end not contact head main body 10, and elastomeric support component 51 is independently of head main body 10.This
Under state, if axle 30（Axle sleeve 20）Rotated relative to the central shaft of axle sleeve 20 along direction of rotation T, then the first elastomer 50
Do not cause any frictional resistance, and make axle sleeve 20 together with axle 30 relative to the central shaft of axle sleeve 20 along direction of rotation T
The motor of rotation can diminish.In this state, in head main body 10 along the direction R of the central shaft relative to head main body 10
In the case of rotation, the first elastomer 50 will not produce any frictional resistance, therefore, axle between the side of head main body 10 and the side of axle 30
30 do not rotate on the T of direction of rotation, are deteriorated from without positional precision of the axle 30 along direction of rotation T, while permitting
Perhaps rotation and axle 30 rotation along direction of rotation T of the head main body 10 along direction R, therefore high efficiency and high accuracy can be taken into account.
As described above, by being pressed to pressure member 60 in the state of axle 30 moves downward, such as institute in figure 3
Show, the supporting part 12 of the side of 51 contact head main body of elastomeric support component 10.Because of this, during axle 30 declines, head main body 10
The supporting part 12 of side can receive a part for the reaction force of the first elastomer 50, so as to prevent excessive reaction force from applying
To axle sleeve 20, also, for example, reduce the rigidity from the axle sleeve supporting part 11 of the downside support sleeve 20 of axle sleeve 20.For example, in Fig. 3
In the state of, it is 10N in the reaction force of the first elastomer 50, and the reaction force of the second elastomer 53 is 4N, and bullet
Property the side of body supporting member 51 contact head main body 10 supporting part 12 in the case of, because supporting part 12 receives 6N reaction force,
So axle sleeve supporting part 11 receives 4N reaction force.
In the above-described embodiments, as shown in FIG. 2, the supporting member 31 of axle 30 is inserted into the guide groove 23 of axle sleeve 20
In, therefore, axle 30 can up and down be moved relative to axle sleeve 20 and can not rotated relative to the central shaft of axle sleeve 20.So
And axle 30 can be made to be moved up and down relative to axle sleeve 20 and central shaft non-rotary work of the axle 30 relative to axle sleeve 20 can be made
Tool can be not limited to Fig. 2 instrument.For example, ball spline instrument can be used.In this case, splined nut may correspond to this hair
Bright axle sleeve 20, and splined shaft may correspond to the axle 30 of the present invention.
According to above-described embodiment, in the part pick-up head of surface-mount devices, the bullet of the upper end of the first elastomer is supported
Property body fixing component and support the elastomeric support component of lower end of the first elastomer to be separated with head main body, wherein, first is elastic
Body 50 applies precompression, and the first elastomer and axle along upwardly direction to axle（Axle sleeve）Revolved relative to the central shaft of axle sleeve
Turn.It therefore, there is no need to that bearing is installed between the first elastomer and axle, so as to reduce the quantity of part.
In the state of the pressure for moving downward axle is not applied, the elastomeric support structure of the lower end of the first elastomer is supported
Part not contact head main body and elastomeric support component is independently of head main body.In this state, if axle is relative to axle sleeve
Central shaft rotates along direction of rotation T, then the first elastomer does not cause any frictional resistance, and makes axle relative in axle
The motor that mandrel rotates along direction of rotation T can diminish.
In this state, in the case where head main body rotates relative to the central shaft of head main body along direction R, the first bullet
Property body do not produce any frictional resistance between head main body side and axle side, therefore, axle need not be along direction of rotation T rotation, this
Sample will not cause positional precision of the axle along direction of rotation T to be deteriorated, while allowing rotation and axle of the head main body along direction R
Along direction of rotation T rotation, therefore high efficiency and high accuracy can be taken into account.
When axle moves downward, if elastomeric support component and the supporting part of head main body are configured to be in contact with each other, that
Head main body side can receive a part for the reaction force of the first elastomer during axle declines.Excessive anti-work can so be prevented
Axle sleeve is firmly applied to, also, for example, reduces the rigidity from the axle sleeve supporting part of support sleeve on the downside of axle sleeve.
Although being particularly shown and described the present invention with reference to the exemplary embodiment of the present invention, this area is common
It is to be understood by the skilled artisans that in the case where not departing from the spirit and scope of the present invention being defined by the claims, can be at this
The various changes in formal and details are carried out in invention.
Claims (4)
1. a kind of part pick-up head of surface-mount devices, including：
Head main body；
Axle sleeve, can be rotated relative to the central shaft of the axle sleeve in the head main body, and up and down
Direction on fixed relative to the head main body；
Axle, fixed in a rotational direction relative to the central shaft of the axle sleeve, and relative to the axle sleeve up and down
Direction on can move；
Part pick tool, installed in the lower end of the axle and pick-up part；
First elastomer, installed in the top of the axle；
Elastomeric support component, support the lower end of first elastomer；
Elastomer fixing component, support the upper end of first elastomer；
Wherein, the axle is fixed to the elastomer fixing component,
Wherein, the second elastomer is arranged between the elastomeric support component and the axle sleeve, supports the elastomeric support
The downside of component, and the elastomeric support component and the head main body when not applying the pressure for moving downward the axle
Separate.
2. part pick-up head as claimed in claim 1, wherein, the supporting part in the head main body is arranged on the bullet
Property body supporting member downside, and when not applying the pressure for moving downward the axle, the elastomeric support component and
The supporting part is separated from each other, and when the axle moves downward, the elastomeric support component and the supporting part are each other
Contact.
3. part pick-up head as claimed in claim 1 or 2, wherein, the axle sleeve passes through the axle in the head main body
Set supporting part is supported from downside.
4. part pick-up head as claimed in claim 3, wherein, first elastomer and second elastomer include compression
Helical spring.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-273631 | 2012-12-14 | ||
| JP2012273631A JP6236201B2 (en) | 2012-12-14 | 2012-12-14 | Component mounting head for surface mounter |
| KR10-2013-0009456 | 2013-01-28 | ||
| KR1020130009456A KR101783989B1 (en) | 2012-12-14 | 2013-01-28 | Parts pickup head for chip mounting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103874405A CN103874405A (en) | 2014-06-18 |
| CN103874405B true CN103874405B (en) | 2018-02-16 |
Family
ID=50912411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310544856.0A Active CN103874405B (en) | 2012-12-14 | 2013-11-06 | The part pick-up head of surface-mount devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103874405B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002018758A (en) * | 2000-07-07 | 2002-01-22 | Murata Mfg Co Ltd | Device for sucking parts |
| CN101411256A (en) * | 2006-03-27 | 2009-04-15 | 松下电器产业株式会社 | Nozzle mechanism, mounting head, and electronic component mounting equipment |
-
2013
- 2013-11-06 CN CN201310544856.0A patent/CN103874405B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002018758A (en) * | 2000-07-07 | 2002-01-22 | Murata Mfg Co Ltd | Device for sucking parts |
| CN101411256A (en) * | 2006-03-27 | 2009-04-15 | 松下电器产业株式会社 | Nozzle mechanism, mounting head, and electronic component mounting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103874405A (en) | 2014-06-18 |
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Address after: Gyeongnam Changwon City, South Korea Applicant after: HANWHA TECHWIN Co.,Ltd. Address before: Gyeongnam Changwon City, South Korea Applicant before: Samsung Techwin Co.,Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SAMSUNG TAI KEWEI CO., LTD. TO: HANWHA TECHWIN CO., LTD. Free format text: CORRECT: ADDRESS; FROM: |
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| C10 | Entry into substantive examination | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: Gyeongnam Changwon City, South Korea Patentee after: HANWHA AEROSPACE Co.,Ltd. Address before: Gyeongnam Changwon City, South Korea Patentee before: HANWHA TECHWIN Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190404 Address after: Gyeongnam Changwon City, South Korea Patentee after: Hanwha Precision Machinery Co.,Ltd. Address before: Gyeongnam Changwon City, South Korea Patentee before: HANWHA AEROSPACE Co.,Ltd. |
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| TR01 | Transfer of patent right |