CN105563079A - Antenna press fit device - Google Patents

Antenna press fit device Download PDF

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Publication number
CN105563079A
CN105563079A CN201510208945.7A CN201510208945A CN105563079A CN 105563079 A CN105563079 A CN 105563079A CN 201510208945 A CN201510208945 A CN 201510208945A CN 105563079 A CN105563079 A CN 105563079A
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CN
China
Prior art keywords
driving
antenna
press fit
housing
counterdie
Prior art date
Application number
CN201510208945.7A
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Chinese (zh)
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CN105563079B (en
Inventor
莫天龙
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宇龙计算机通信科技(深圳)有限公司
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Priority to CN201510208945.7A priority Critical patent/CN105563079B/en
Publication of CN105563079A publication Critical patent/CN105563079A/en
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Publication of CN105563079B publication Critical patent/CN105563079B/en

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Abstract

The invention relates to an antenna press-fit device which is used for press-fitting an antenna on a shell. The antenna press-fit device comprises a base, a support frame, a first driving mechanism, an upper die and a lower die, wherein the support frame is fixedly arranged on the base; the first driving mechanism is arranged on the support frame; the upper die is connected with the first driving mechanism; the first driving mechanism is used for driving the upper die to move along the vertical direction; the lower die is fixedly arranged on the base and arranged opposite to the upper die; the lower die is provided with two flexible limiting pieces; the two flexible limiting pieces are respectively arranged on two sides of the lower die and are respectively used for clamping the two ends of the shell so as to fix the shell on the lower die; and the first driving mechanism is furthermore used for driving the upper die to move along the vertical direction until the upper die is press-fit with the lower die so as to compact the antenna on the shell. The antenna press-fit device has the advantages of being simple in structure and high in press-fit correctness.

Description

Antenna press fit device

Technical field

The present invention relates to the antenna assemblies field of communication products, particularly relate to a kind of antenna press fit device.

Background technology

The antenna that some the communication class products produced on the market at present adopt is all adopt absorption type mostly, namely paste on the surface of the product by the mode of antenna (being generally FPC) gum, while the overall volume reducing communication class product, also ensure the stability of himself.

Existing assembling mode is by being pasted onto on product shell by antenna manually mostly, in the process of pasting, because staff cannot position the accurate paste position of antenna, so while the accuracy of its paste position cannot be ensured, also paste due to staff and cannot ensure its dynamics, antenna is pasted steady not, thus cause processing precision of products lower, the production yield of product is reduced.In addition, owing to adopting manual type processing, operating efficiency is very low, cannot adapt to the needs of large-scale production.

Therefore, a kind of antenna press fit device of design is badly in need of, to ensure the paste position accuracy of antenna and to improve its sticking efficiency.

Summary of the invention

The invention provides a kind of antenna press fit device, paste in order to solve existing antenna the technical problem existed.Particularly, a kind of antenna press fit device is provided, in order to be pressed on housing by antenna.

Described antenna press fit device comprises:

Comprise base, support frame, first driving mechanism, patrix and counterdie, described support frame is fixedly arranged on described base, described first driving mechanism is located on described support frame one end away from described base, described patrix is connected with described first driving mechanism, described first driving mechanism drives the vertically upper motion of described patrix, described counterdie is fixedly arranged on described base, and be oppositely arranged with described patrix, described counterdie is provided with two flexible limit parts, two described flexible limit parts are located on the both sides of described counterdie respectively, described two flexible limit parts are respectively in order to engage the two ends of described housing, so that described housing is fixed on described counterdie, described first driving mechanism drives described patrix to move to described patrix and described counterdie pressing vertically, so that described antenna is pressed on described housing.

Wherein, described counterdie is also provided with a boss, on described housing, corresponding described boss offers draw-in groove, and described draw-in groove engages with described boss.

Wherein, the connecting plate that described supporting bracket comprises two columns and is connected between two columns, described first driving mechanism is located on described connecting plate.

Wherein, described first driving mechanism is adjustable cylinder.

Wherein, described antenna press fit device also comprises Intaker controller, on column described in described Intaker controller located therein, in order to control the air inflow of described first driving mechanism.

Wherein, described antenna press fit device also comprises multiple second driving mechanism, and multiple described second driving mechanisms are located at the surrounding of described counterdie respectively, in order to be pressed on described housing by described antenna.

Wherein, described first driving mechanism is provided with sensor, and described sensor controls the sequence of movement of described first driving mechanism and the second driving mechanism in order to induction.

Wherein, described antenna press fit device also comprises backing plate, and described patrix is fixedly connected with described backing plate, and described first driving mechanism is located on described backing plate.

Wherein, two described flexible limit parts are silicagel pad, and the two ends joint of two described flexible limit parts and described housing is arc surface.

Wherein, described base is provided with control panel, in order to control startup and/or the closedown of described first driving mechanism.

Relative to prior art, antenna press fit device provided by the invention by being provided with two flexible limit parts on counterdie, respectively in order to engage the two ends of housing, thus housing is fixed on counterdie, prevents process middle shell displacement at pressing antenna and the pressing position, sky that causes is inaccurate; And because the two ends end face of housing is sticked in two flexible limit parts, scratch so can prevent adopting the end face of rigid locating part to housing to cause or wear and tear, ensure the integrality of housing appearance.Meanwhile, adopt the first driving mechanism to drive patrix to carry out pressing to counterdie and housing, thus can ensure that dynamics pasted by antenna, prevent antenna from occurring to tilt phenomenon, and improve its pressing efficiency further.This antenna press fit device has the advantage that structure is simple, pressing accuracy rate is high.

Accompanying drawing explanation

In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the antenna press fit device that the embodiment of the present invention provides;

Fig. 2 is the lower die structure schematic diagram of the antenna press fit device that the embodiment of the present invention provides.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

See also Fig. 1 to Fig. 2, the embodiment of the present invention provides a kind of antenna press fit device 100, in order to be pressed on housing 200 by antenna (not identifying in figure).Described antenna press fit device 100 comprises base 10, support frame 20, first driving mechanism 30, patrix 40 and counterdie 50.Described support frame 20 is fixedly arranged on described base 10, and described first driving mechanism 30 is located on described support frame 20, in order to drive described patrix 40 vertically upper mobile.Described counterdie 50 is located on described base 10, described counterdie 50 is provided with two flexible limit parts, 51, two described flexible limit parts 51 respectively in order to engage the two ends of described housing 200, so that described housing 200 is fixed on described counterdie 50.Described first driving mechanism 30 can drive described patrix 40 to move to described patrix 40 and the pressing of described counterdie 50 vertically, to be pressed on described housing 200 by described antenna.

In the present embodiment, described base 10 is provided with control panel 11, in order to control unlatching and/or the closedown of described first driving mechanism 30.Concrete, described control panel 11 is provided with switch key 111.Described switch key 111 is in order to control unlatching and/or the closedown of described first driving mechanism 30.Be understandable that, in other embodiments, described control panel 11 also can be provided with reset key, to prevent from resetting in time when there is contingency.

In order to further improvement, described antenna press fit device 100 also can Add-In control device (not identifying in figure), controls as adopted PLC.Being come downwards to by described patrix 40 is all written in described presetting apparatus by program with the speed of described counterdie 50 pressing, pressing dynamics and pressing time, controlled by control program control device, thus realize automation, improve pressing efficiency and the pressing accuracy rate of described antenna press fit device 100, and then ensure the installation quality of product.

The connecting plate 22 that described support frame 20 comprises two columns 21 and is connected between two columns 21.In the present embodiment, described two root posts 21 respectively vertical symmetry are fixedly arranged on described base 10, and two described columns 21 are located on the side of described base 10 away from described control panel 11, be convenient to described patrix 40 and the pressing of described counterdie 50 to retain enough spaces.

Described first driving mechanism 30 is located on described connecting plate 22, in order to drive the vertically upper motion of described patrix 40.In the present embodiment, described first driving mechanism 30 is fixedly connected with described patrix 40, to regulate the pressing dynamics of described patrix 40 and described counterdie 50.In the present embodiment, described first driving mechanism 30 is adjustable cylinder, by controlling the pressing dynamics of described first driving mechanism 30, make described patrix 40 controlled with the pressing dynamics of described counterdie 50, prevent because pressure force is spent large that described housing 200 that is that cause damages or spends little due to pressure force and make the pressing defective tightness of described antenna and described housing 200 and cause antenna to tilt, affect Signal reception.

In order to further improvement, described antenna press fit device 100 also comprises Intaker controller 60, on column 21 described in described Intaker controller 60 located therein, in order to control the air inflow of described first driving mechanism 30.In the present embodiment, described Intaker controller 60 being provided with adjusting knob 61, by regulating described adjusting knob 61, the air inflow of described Intaker controller 60 can being controlled, thus control the pressing dynamics of described first driving mechanism 30.

Described patrix 40 is connected with described first driving mechanism 30, and described first driving mechanism 30 drives the vertically upper motion of described patrix.In the present embodiment, the material of described patrix 40 is bakelite, to ensure its good insulating properties and heat-resisting, corrosion resistance.Described patrix 40 is provided with die cavity (not shown) on the side of described counterdie 50, in order to coordinate with described housing 200.Be understandable that, in other embodiments, the material of described patrix 40 also can be plastics or metal etc.

In order to further improvement, described antenna press fit device 100 also comprises backing plate 70, and described backing plate 70 is located between described first driving mechanism 30 and described patrix 40.In the present embodiment, described backing plate 70 is square plate, one end of described backing plate 70 is fixedly connected with described first driving mechanism 30, the other end is fixedly connected with described patrix 40, to make described patrix 40 be connected with described first driving mechanism 30, thus make described first driving mechanism 30 that described patrix 40 can be driven to move back and forth vertically.

Described counterdie 50 is fixedly arranged on described base 10, and is oppositely arranged with described patrix 40.In the present embodiment, the material of described counterdie 50 is bakelite, to ensure its good insulating properties, heat resistance and corrosion resistance.

Described counterdie 50 is provided with two flexible limit parts 51, two described flexible limit parts 51 are located on the both sides of described counterdie 50 respectively, described two flexible limit parts 51 respectively in order to engage the two ends of described housing 200, so that described housing 200 is fixed on described counterdie 50.In the present embodiment, two described flexible limit parts 51 are silicagel pad, to protect the contact surface of described housing 200, prevent it from scratching.Described two flexible limit parts 51 are arc surface with the two ends joint of described housing 200, and it is consistent with the two ends end face matching of described housing 200, thus can agree with described housing 200, ensure further the engaging compactness of described housing 200 and two described flexible limit parts 51.Be understandable that, in other embodiments, the material of described flexible limit part 51 also can be rubber or flexible glue etc.

Described counterdie 50 is also provided with a boss 52, on described housing 200, corresponding described boss 52 offers draw-in groove 201, and described draw-in groove 201 engages with described boss 52.In the present embodiment, described boss 52 is for being convexly equipped in the square block on described counterdie 50, described draw-in groove 201 is opened in described housing 200 placing battery (not identifying in figure) place, described draw-in groove 201 engages with described boss 52, to ensure the engaging compactness of described housing 200 and described counterdie 50 further, prevent when described patrix 40 is with described counterdie 50 pressing, the stressed skew of described housing 200 and make the pressing position of described antenna occur deviation, and offering described draw-in groove 201 place due to described housing 200 is the placement location of battery, so the overall appearance of described housing 200 can not be destroyed, ensure the global consistency of described housing 200.

Described antenna press fit device 100 also comprises multiple second driving mechanism 80, and multiple described second driving mechanisms 80 are located at the surrounding of described counterdie 50 respectively, in order to be pressed on described housing 200 by described antenna.In the present embodiment, multiple described second driving mechanism 80 is air pressure.The number of described second driving mechanism 80 is six, wherein be located on two sides of described counterdie 50 for two, be located between two respectively on two other side of described counterdie 50 for other four, thus the described antenna be pasted in described housing 200 surrounding only can be pressed on described housing 200.Multiple described second driving mechanism 80 controls its pressing dynamics by Add-In control device, thus can prevent from spending large due to pressure force and causing described housing 200 to damage, or spend little due to pressure force and cause the pressing defective tightness of described antenna and described housing 200.Be understandable that, in other embodiments, multiple described second driving mechanism 80 also can be adjustable air pressure, and controls its pressing dynamics by Intaker controller.

In order to further improvement, described antenna press fit device 100 also comprises sensor 90, and described sensor 90 is located on described first driving mechanism 30, controls the sequence of movement of described first driving mechanism 30 and described second driving mechanism 80 in order to induction.In the present embodiment, one end that described first driving mechanism 30 closes on described patrix 40 is located at by described sensor 90, described sensor 90 can be located at the action of each described magnetic valve in described first driving mechanism 30 and the second driving mechanism 80, realize controlling described first driving mechanism 30 with this and drive the vertically upper reciprocating motion of described patrix 40, and control described second driving mechanism 80 and realize, to the pressing of the described antenna be adhered in described housing 200 all directions, ensure that the pressing compactness of described antenna and described housing 200.

During work, each described antenna is adhered on the correspondence position of described housing 200, described housing 200 is positioned on described counterdie 50, and the two ends end face of described housing 200 is engaged with two flexible limit parts 51, ensure that the described draw-in groove 201 on described housing 200 is sticked on described boss 52 simultaneously, complete described housing 200 and locate with the engaging of described counterdie 50.Open the gauge tap 111 on described control panel 11, start described first driving mechanism 30, described patrix 40 is driven vertically, to move to described patrix 40 and the pressing of described counterdie 50 by described first driving mechanism 30, and make described housing 200 can be placed in the die cavity of described patrix 40, now, the pressing dynamics of described first driving mechanism 30 is controlled, to be firmly pressed on described housing 200 by described antenna by controlling described Intaker controller 60.Then, by controlling Add-In control device, the described antenna be pasted in described housing 200 surrounding can be compressed by multiple described second driving mechanism 80, tilt to prevent described antenna, finally take out described housing 200, complete the pressing of described antenna and described housing 200.

Relative to prior art, antenna press fit device provided by the invention by being provided with two flexible limit parts on counterdie, respectively in order to engage the two ends of housing, thus housing is fixed on counterdie, prevents process middle shell displacement at pressing antenna and the pressing position, sky that causes is inaccurate; And because the two ends end face of housing is sticked in two flexible limit parts, scratch so can prevent adopting the end face of rigid locating part to housing to cause or wear and tear, ensure the integrality of housing appearance.Meanwhile, adopt the first driving mechanism to drive patrix to carry out pressing to counterdie and housing, thus can ensure that dynamics pasted by antenna, prevent antenna from occurring to tilt phenomenon, and improve its pressing efficiency further.This antenna press fit device has the advantage that structure is simple, pressing accuracy rate is high.

Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is when understanding: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. an antenna press fit device, in order to antenna is pressed on housing, it is characterized in that, described antenna press fit device comprises base, support frame, first driving mechanism, patrix and counterdie, described support frame is fixedly arranged on described base, described first driving mechanism is located on described support frame one end away from described base, described patrix is connected with described first driving mechanism, described first driving mechanism drives the vertically upper motion of described patrix, described counterdie is fixedly arranged on described base, and be oppositely arranged with described patrix, described counterdie is provided with two flexible limit parts, two described flexible limit parts are located on the both sides of described counterdie respectively, described two flexible limit parts are respectively in order to engage the two ends of described housing, so that described housing is fixed on described counterdie, described first driving mechanism drives described patrix to move to described patrix and described counterdie pressing vertically, so that described antenna is pressed on described housing.
2. antenna press fit device as claimed in claim 1, it is characterized in that, described counterdie is also provided with a boss, on described housing, corresponding described boss offers draw-in groove, and described draw-in groove engages with described boss.
3. antenna press fit device as claimed in claim 1, it is characterized in that, the connecting plate that described supporting bracket comprises two columns and is connected between two columns, described first driving mechanism is located on described connecting plate.
4. antenna press fit device as claimed in claim 3, it is characterized in that, described first driving mechanism is adjustable cylinder.
5. antenna press fit device as claimed in claim 4, it is characterized in that, described antenna press fit device also comprises Intaker controller, on column described in described Intaker controller located therein, in order to control the air inflow of described first driving mechanism.
6. antenna press fit device as claimed in claim 5, it is characterized in that, described antenna press fit device also comprises multiple second driving mechanism, and multiple described second driving mechanisms are located at the surrounding of described counterdie respectively, in order to be pressed on described housing by described antenna.
7. antenna press fit device as claimed in claim 6, it is characterized in that, described antenna press fit device also comprises sensor, and described sensor is located on described first driving mechanism, controls the sequence of movement of described first driving mechanism and the second driving mechanism in order to induction.
8. antenna press fit device as claimed in claim 3, it is characterized in that, described antenna press fit device also comprises backing plate, and described backing plate is located between described first driving mechanism and described patrix.
9. antenna press fit device as claimed in claim 1, it is characterized in that, two described flexible limit parts are silicagel pad, and the two ends joint of two described flexible limit parts and described housing is arc surface.
10. antenna press fit device as claimed in claim 1, is characterized in that, described base is provided with control panel, in order to control startup and/or the closedown of described first driving mechanism.
CN201510208945.7A 2015-04-28 2015-04-28 Antenna pressing device CN105563079B (en)

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CN105563079B CN105563079B (en) 2018-05-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106041489A (en) * 2016-07-27 2016-10-26 昆山力盟机械工业有限公司 Panel assembly jig
CN106141664A (en) * 2016-07-27 2016-11-23 昆山力盟机械工业有限公司 The method of work of panel sectional tool
CN107297604A (en) * 2017-05-31 2017-10-27 西安空间无线电技术研究所 A kind of assembling device integrated for modular phased array antenna complete machine
CN107470476A (en) * 2017-08-16 2017-12-15 广州市吉峰金属塑胶制品有限公司 A kind of press fit device of the coaxial resonant rod in three section
CN110497175A (en) * 2019-08-28 2019-11-26 Oppo(重庆)智能科技有限公司 Protect component, assembled fixture and electronic equipment assemble method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201446392U (en) * 2009-07-17 2010-05-05 富港电子(东莞)有限公司 Camera lens mold train assembling machine
US7752743B2 (en) * 2005-01-28 2010-07-13 Smart Res Joint-Stock Company Apparatus for making an antenna for wire transponders
CN202388203U (en) * 2011-10-31 2012-08-22 东莞劲胜精密组件股份有限公司 Mobile phone housing processing device
CN202911263U (en) * 2012-06-29 2013-05-01 昆山迈致治具科技有限公司 Antenna automatic-pressing device
CN203994788U (en) * 2014-04-22 2014-12-10 宇龙计算机通信科技(深圳)有限公司 A kind of press fit device
CN204075654U (en) * 2014-07-18 2015-01-07 杭州鑫特仪表科技有限公司 A kind of core of membrane type gas meter body vertical shaft pressing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7752743B2 (en) * 2005-01-28 2010-07-13 Smart Res Joint-Stock Company Apparatus for making an antenna for wire transponders
CN201446392U (en) * 2009-07-17 2010-05-05 富港电子(东莞)有限公司 Camera lens mold train assembling machine
CN202388203U (en) * 2011-10-31 2012-08-22 东莞劲胜精密组件股份有限公司 Mobile phone housing processing device
CN202911263U (en) * 2012-06-29 2013-05-01 昆山迈致治具科技有限公司 Antenna automatic-pressing device
CN203994788U (en) * 2014-04-22 2014-12-10 宇龙计算机通信科技(深圳)有限公司 A kind of press fit device
CN204075654U (en) * 2014-07-18 2015-01-07 杭州鑫特仪表科技有限公司 A kind of core of membrane type gas meter body vertical shaft pressing machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106041489A (en) * 2016-07-27 2016-10-26 昆山力盟机械工业有限公司 Panel assembly jig
CN106141664A (en) * 2016-07-27 2016-11-23 昆山力盟机械工业有限公司 The method of work of panel sectional tool
CN106141664B (en) * 2016-07-27 2018-05-18 昆山力盟机械工业有限公司 The method of work of panel sectional gauge
CN107297604A (en) * 2017-05-31 2017-10-27 西安空间无线电技术研究所 A kind of assembling device integrated for modular phased array antenna complete machine
CN107470476A (en) * 2017-08-16 2017-12-15 广州市吉峰金属塑胶制品有限公司 A kind of press fit device of the coaxial resonant rod in three section
CN107470476B (en) * 2017-08-16 2019-04-05 广州市吉峰金属塑胶制品有限公司 A kind of pressing device for the resonant rod that three segments is coaxial
CN110497175A (en) * 2019-08-28 2019-11-26 Oppo(重庆)智能科技有限公司 Protect component, assembled fixture and electronic equipment assemble method

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