KR101661741B1 - Up/down apparatus using voice coil - Google Patents

Up/down apparatus using voice coil Download PDF

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Publication number
KR101661741B1
KR101661741B1 KR1020150164688A KR20150164688A KR101661741B1 KR 101661741 B1 KR101661741 B1 KR 101661741B1 KR 1020150164688 A KR1020150164688 A KR 1020150164688A KR 20150164688 A KR20150164688 A KR 20150164688A KR 101661741 B1 KR101661741 B1 KR 101661741B1
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KR
South Korea
Prior art keywords
guide
upper frame
lower frame
permanent magnet
voice coil
Prior art date
Application number
KR1020150164688A
Other languages
Korean (ko)
Inventor
서갑기
김승현
Original Assignee
이지메카시스템 주식회사
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Application filed by 이지메카시스템 주식회사 filed Critical 이지메카시스템 주식회사
Priority to KR1020150164688A priority Critical patent/KR101661741B1/en
Application granted granted Critical
Publication of KR101661741B1 publication Critical patent/KR101661741B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0207—Details of measuring devices
    • G01M11/0214—Details of devices holding the object to be tested
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement

Abstract

A landing gear using a voice coil is started. The lifting device using the voice coil according to the present invention is characterized in that a permanent magnet portion having a guide coupling hole opened upward in a central portion is formed to protrude and a supporting sidewall is provided so as to correspond to the both sides of the permanent magnet portion and protrude upwardly A lower frame; An electromagnet portion which is disposed on the upper portion of the lower frame and protrudes downward from a central portion of the bottom surface to wind the voice coil around a shaft coupled to the guide coupling hole, An upper frame which is lowered in the direction of the lower frame by the magnetic force of the permanent magnet when the electric current is applied to the electromagnetic portion and is raised or lowered by the elastic force of the elastic portion when the electric current applied to the electromagnetic portion is blocked; And a controller coupled to the upper frame and configured to control an elevation movement of the upper frame relative to the lower frame.

Description

(UP / DOWN APPARATUS USING VOICE COIL)

The present invention relates to a lifting device using a voice coil, and more particularly, to a lifting device using a voice coil, which prevents shaking due to stable vertical feeding during vertical feeding of a vision camera or a high performance vibrator, Which can be miniaturized through the use of a voice coil.

Generally, when judging whether or not an abnormality exists in a product, it is difficult to perform real-time inspection and complete inspection in the case of an inspection by a human operator, the inspection speed is low, the reliability of the inspection result is likely to be deteriorated according to the skill and fatigue of the operator, It is difficult to secure image results and statistical data for reflection in the production process.

Therefore, by using the vision inspection device as an alternative to solve these problems, it is possible to secure the competitiveness of quality through efficient quality control, improve the reliability and inspection efficiency by automating the inspection process, It is possible to perform effective quality control by database, and it is possible to perform uniform inspection regardless of external factors (worker's fatigue, individual difference) using high-performance hardware and algorithm, and it is possible to perform fast and accurate whole inspection.

Such vision inspection apparatuses are mainly used in various manufacturing processes such as surface finishing inspection of products, physical defect tracking, inspection of textile products, color inspection, inspection of semiconductor manufacturing process, A frame grabber for processing an image, a computer and algorithm for analyzing and judging the obtained image, and a discharging device for extracting a defective product according to the judgment.

Meanwhile, the types of cameras used in such a vision inspection apparatus include a line scan camera and an area camera, and the area camera is the most important feature to scan and transmit only one frame at a time, It is possible to shoot only when the object to be inspected and the camera are stopped.

On the other hand, the line scan camera is composed of pixels only horizontally, and only one line is vertically, so it is possible to shoot even when the object to be inspected and the camera are moving.

Therefore, in order to use a line scan camera, the shutter speed of the camera and the moving speed of the object to be inspected and the moving speed of the camera must be exactly the same to obtain an accurate image, and the resolution of the camera must be high.

As a prior art of the above-mentioned vision inspection apparatuses, there have been proposed a vision inspection apparatus such as a Korean Patent Laid-Open Publication No. 2012-0033071 entitled " Vision Inspection Lighting Device ", Korean Patent Registration No. 576392 "Vision Inspection Device ", and Korean Patent Publication No. 2010-0129846" "Has already been proposed.

On the other hand, when inspecting a lens to be applied to a camera using the above-mentioned vision inspection apparatus, the inspection items include fingerprints, foreign substances, black spots, white spots, scratches, and the like.

That is, when inspecting a lens mounted on a vision inspection apparatus, the lens is inspected while being raised and lowered in a lens direction by a lifting apparatus mounted on a boiling point inspection apparatus.

However, in the conventional vision inspection apparatus, there is a problem in that the lifting device mounted on the camera for lifting and lowering the camera moves up and down the camera by the ball screw and the sub motor method, so that the camera can not be accurately inspected due to vibration.

Further, the lift device mounted on the vision inspection device is composed of various parts, and the structure is very complicated, and there is a problem in that it is difficult to repair the device in case of failure.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a voice coil, which is capable of preventing a shake due to stable vertical feeding during a vertical transfer of a vision camera or a high performance vibrator, Thereby providing a landing gear.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

The present invention relates to a lower frame comprising a permanent magnet portion protruding from a center portion of a guide coupling hole, the lower portion of the lower frame being provided with supporting sidewalls protruding upwardly from both sides of the permanent magnet portion, An electromagnet portion which is disposed on the upper portion of the lower frame and protrudes downward from a central portion of the bottom surface to wind the voice coil around a shaft coupled to the guide coupling hole, An upper frame which is lowered in the direction of the lower frame by the magnetic force of the permanent magnet when the electric current is applied to the electromagnetic portion and is raised or lowered by the elastic force of the elastic portion when the electric current applied to the electromagnetic portion is blocked; And a control unit coupled to the upper frame and configured to control an up and down movement of the upper frame relative to the lower frame.

Wherein the lower frame is formed with guide sidewalls having guide grooves on the inner surfaces facing each other so as to correspond to each other on both sides of the permanent magnet portion on which the support sidewalls are not formed, And guiding projections coupled to the guide grooves are formed on both sides corresponding to the guide sidewalls so as to guide upward and downward movement.

The support sidewall is formed with a plurality of guide holes having a predetermined depth on an upper surface thereof, and the elastic portion is formed to protrude downward in the upper frame so as to correspond to the guide holes and to be inserted into the guide hole And an elastic member coupled to the guide shaft and elastically supporting the upper frame with respect to the lower frame.

The guide sidewalls are formed with protruding locking projections on the upper and lower surfaces of the upper and lower sides of the upper frame so as to limit the up and down range of the upper frame, and the upper frames are engaged with the locking bars on both sides so as to be caught by the locking projections.

According to the present invention, it is possible to provide a structure capable of stably lifting and lowering the lifting and lowering motion of the upper frame relative to the lower frame, and capable of high-speed and precise lifting and lowering movements. There is an advantage that it can be applied to a vision camera autofocusing or a high performance vibrator which requires a lift.

1 is a front view of a lift device using a voice coil according to the present invention.
2 is a rear view of a lift device using a voice coil according to the present invention.
3 is a plan view of a lift device using a voice coil according to the present invention.
4 is a view schematically showing the line AA shown in Fig.
FIG. 5 is a schematic view of the BB line shown in FIG. 1. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions will not be described in order to simplify the gist of the present invention.

FIG. 1 is a front view of a lift device using a voice coil according to the present invention, FIG. 2 is a rear view of a lift device using a voice coil according to the present invention, FIG. 3 is a cross- FIG. 4 is a view schematically showing the AA line shown in FIG. 1, and FIG. 5 is a view schematically showing the BB line shown in FIG.

As shown in FIGS. 1 to 5, the lifting device using the voice coil according to the present invention includes a lower frame 10, an upper frame 20, and a control unit 30. As shown in FIG.

The lower frame 10 constitutes the base of the lifting device according to the present invention and includes a permanent magnet portion 12, a support side wall 14, and a guide side wall 16.

The permanent magnet portion 12 is provided at a central portion of the lower frame 10. [ That is, the permanent magnet portion 12 is formed to maintain a predetermined magnetization state and protrude upward in the central portion of the lower frame 10. [ The permanent magnet portion 12 is formed with a guide coupling hole 12A which opens upward and has a certain depth.

The supporting side wall 14 is provided on both sides of the permanent magnet portion 12. That is, the support side wall 14 is formed to protrude in the upward direction by being disposed on both sides of the permanent magnet portion 12 so as to correspond to each other. On the upper surface of the support sidewall 14, a support sidewall 14 having an opening upward and having a certain depth is formed. At this time, the support side wall 14 is formed of a plurality of guide holes 14A arranged on the upper surface of the support side wall 14 at a certain interval from each other.

The guide side wall 16 is provided on both sides of the permanent magnet portion 12 on which the support side wall 14 is not formed. That is, the guide side walls 16 are arranged to correspond to each other on both sides of the permanent magnet portion 12 and protrude upward. The support sidewall 14 has guide grooves 16A formed along the longitudinal direction on inner surfaces corresponding to each other.

The guide side wall 16 is formed with protruding locking projections 18 on upper and lower sides of both side surfaces thereof. The stopper 18 plays a role of restricting the range of movement of the upper frame 20. That is, when the upper frame 20 is lifted and lowered, the latching bar 28 is hooked on the latching protrusion 18 of the guide side wall 16, so that the upper frame 20 is stopped from rising and falling.

The lower frame 10 not only supports the upper frame 20 but also serves to guide the lifting and lowering movement.

The upper frame 20 constitutes a lifting portion of the lift device according to the present invention and includes an electromagnetic portion 22, an elastic portion 24, a guide projection 26, and a catching bar 28.

The electromagnetic portion (22) is provided on the bottom surface of the upper frame (20). That is, the electromagnetic portion 22 has a guide coupling shaft 22A protruding downward from the center of the bottom surface of the upper frame 20 and coupled to the guide coupling hole 12A and a guide shaft 22A wound around the guide coupling shaft 22A And a voice coil 22B. The voice coil 22B is formed to be magnetized in accordance with the application of the electric current.

The elastic portions 24 are provided to be disposed on both sides of the electromagnetic portion 22. The elastic portion 24 includes a guide shaft 24A protruding downward from the bottom surface of the upper frame 20 so as to correspond to the support side wall 14 formed on the support side wall 14, And an elastic member 24B inserted into the support side wall 14 to elastically support the upper frame 20. [ At this time, the elastic member 24B is formed as a compression spring.

Here, the guide shaft 24A is separated from the support side wall 14 and the elastic member 24B is maintained in a relaxed state when the upper frame 20 is lifted.

On the contrary, the elastic portion 24 is inserted into the supporting side wall 14 and the elastic member 24B is kept compressed when the upper frame 20 is lowered.

The elastic part 24 stably guiding the lowering motion of the upper frame 20 by the guide shaft 24A and the restoring elasticity of the electromagnetic part 22 provided in the lower frame 10, So that the upper frame 20 is raised.

The guide protrusions 26 are formed on both sides of the upper frame 20 so as to correspond to the guide sidewalls 16 and are coupled to the guide grooves 16A. The guide protrusion 26 guides the upward and downward movement of the upper frame 20, so that the upper frame 20 can move up and down stably without shaking.

The latching bars 28 are provided on both side surfaces of the upper frame 20 so as to correspond to the latching protrusions 18 provided on the guide side wall 16. In other words, the latching bar 28 is structured so as to be engaged with the latching protrusion 18 while lifting and lowering in conjunction with the vertical movement of the upper frame 20.

That is, when the upper frame 20 is moved up and down, the latching bar 28 is hooked on the latching protrusion 18, so that the upper frame 20 can be stopped from rising or falling.

The control unit 30 is provided to control the vertical movement of the upper frame 20. [ That is, the control unit 30 is coupled to the guide sidewall 16 provided on the upper frame 20 and controls the elevating motion of the upper frame 20 according to predetermined information.

The control unit 30 applies current or cuts off current to the voice coil 22B of the electromagnet unit 22 provided in the lower frame 10 so that the upper frame 20 is raised Or can be lowered.

That is, the control unit 30 controls the upper frame 20 to be able to move up and down by 1um step, so that the precise operation of the upper frame 20 can be performed when the upper frame 20 is moved up and down. This may be possible by the fact that the control section 30 applies or cuts off current in a short time which is set when current is applied to the electromagnetic section 22. [

The control unit 30 can operate the upper frame 20 at a high speed through the process of applying or cutting off the current to the electromagnet unit 22 provided in the lower frame 10.

That is, the control unit 30 can lower the upper frame 20 at a high speed by applying a current to the electromagnet unit 22 for a long time.

In addition, the control section 30 is capable of high-speed rise by restoring elastic force of the elastic member provided in the elastic section 24 by cutting off the electric current applied to the electromagnetic section 22. [

Here, the configuration for realizing the precise and high-speed operation during the lifting and lowering motion of the upper frame 20 according to predetermined information of the control unit 30 is well known in the art, Description thereof will be omitted.

Hereinafter, the operation of the lift device using the voice coil according to the present invention will be described.

First, when the supply of electric current to the electromagnetic part 22 provided in the lower frame 10 is cut off, the lift frame using the voice coil according to the present invention has the elastic members 24B So that it is maintained in the raised state. At this time, the latching bar 28 provided on the upper frame 20 is hooked on the latching protrusion 18 provided on the guide sidewall 16 of the lower frame 10, so that the upper frame 20 is prevented from further rising .

In this state, when the electric current is applied to the electromagnet portion 22 provided on the upper frame 20, the voice coil 22B provided on the electromagnet portion 22 is magnetized to the N pole or the S pole.

For example, when the voice coil 22B is magnetized to the N pole and the permanent magnet portion 12 provided on the lower frame 10 is magnetized in the S pole, the upper frame 20 has different polarities And can be lowered in the direction of the lower frame 10 by the voice coil 22B and the permanent magnet portion 12.

The upper frame 20 lowered in the direction of the lower frame 10 is stopped without being lowered any more when the latching bar 28 is hooked on the latching protrusion 18 provided on the guide side wall 16. At this time, the elastic member 24B provided on the elastic part 24 of the upper frame 20 is compressed as the upper frame 20 is lowered.

On the other hand, when the supply of the current applied to the electromagnetic portion 22 is interrupted, the voice coil 22B is rendered magnetized, and accordingly, the upper frame 20 is elastically deformed by the elasticity of the elastic member 24B provided on the elastic portion 24 It can be raised by the restoring force.

As described above, the hoistway using the voice coil according to the present invention provides a structure capable of stable elevation with high speed and precise elevation movement while preventing the shake of the upper frame 20 relative to the lower frame 10 during elevation movement The present invention can be applied to a vision camera autofocusing or a high performance vibrator which requires stable up / down and precise lift without shaking since the structure can be simplified through miniaturization.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, such modifications or variations should not be individually understood from the technical spirit and viewpoint of the present invention, and modified embodiments should be included in the claims of the present invention.

10: Lower frame
12: permanent magnet portion
14: Support side wall
16:
18:
20: upper frame
22:
24:
26: guide projection
28: Hanging bar
30:

Claims (4)

delete A lower frame provided with protruding permanent magnet portions having guiding engagement holes opened in a central portion thereof and provided with supporting side walls protruding upward from both sides of the permanent magnet portion so as to correspond to each other;
An electromagnet portion which is disposed on the upper portion of the lower frame and protrudes downward from a central portion of the bottom surface to wind the voice coil around a shaft coupled to the guide coupling hole, An upper frame which is lowered in the direction of the lower frame by the magnetic force of the permanent magnet when the current is applied to the electromagnetic portion and is raised and lowered by the elastic force of the elastic portion when the current applied to the electromagnetic portion is blocked; And
And a control unit coupled to the upper frame and configured to control an upward / downward movement of the upper frame relative to the lower frame,
Wherein the lower frame comprises:
And guide sidewalls each having guide grooves formed on inner surfaces thereof facing each other are formed on both sides of the permanent magnet portion on which the support sidewalls are not formed,
Wherein the upper frame comprises:
And guide projections coupled to the guide grooves are formed on both sides corresponding to the guide sidewalls so as to guide upward and downward movement.
3. The method of claim 2,
The support side wall
A plurality of guide holes having a predetermined depth are formed on the upper surface,
The elastic portion
A guide shaft protruding downward from the upper frame so as to correspond to the guide hole and inserted into the guide hole when the upper frame is lowered and a guide shaft coupled to the guide shaft to elastically support the upper frame with respect to the lower frame, And a member is provided on the upper surface of the voice coil.
3. The method of claim 2,
The guide side wall
A locking protrusion is formed on upper and lower surfaces of both side surfaces so as to limit an elevation range of the upper frame,
Wherein the upper frame comprises:
And a latching bar is coupled to both surfaces of the lifting and lowering mechanism so as to be caught by the latching protrusion.
KR1020150164688A 2015-11-24 2015-11-24 Up/down apparatus using voice coil KR101661741B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150164688A KR101661741B1 (en) 2015-11-24 2015-11-24 Up/down apparatus using voice coil

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KR1020150164688A KR101661741B1 (en) 2015-11-24 2015-11-24 Up/down apparatus using voice coil

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KR101661741B1 true KR101661741B1 (en) 2016-09-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112661072A (en) * 2020-12-14 2021-04-16 中国煤炭科工集团太原研究院有限公司 Shake eliminating system, method and device for lifting workbench
CN114793514A (en) * 2022-05-18 2022-07-29 扬州大学 Electromagnetic moving lifting extension chassis and working method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008058946A (en) * 2007-06-13 2008-03-13 Tricore Corp VOICE COIL MOTOR TYPE mp FOCUSING ACTUATOR
KR20110032821A (en) * 2009-09-24 2011-03-30 삼성전기주식회사 Actuator for mobile device
KR20110072340A (en) * 2009-12-22 2011-06-29 엘지이노텍 주식회사 Voice coil motor
KR20120020485A (en) * 2010-08-30 2012-03-08 주식회사 대림음향 Linear type vibration motor and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008058946A (en) * 2007-06-13 2008-03-13 Tricore Corp VOICE COIL MOTOR TYPE mp FOCUSING ACTUATOR
KR20110032821A (en) * 2009-09-24 2011-03-30 삼성전기주식회사 Actuator for mobile device
KR20110072340A (en) * 2009-12-22 2011-06-29 엘지이노텍 주식회사 Voice coil motor
KR20120020485A (en) * 2010-08-30 2012-03-08 주식회사 대림음향 Linear type vibration motor and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112661072A (en) * 2020-12-14 2021-04-16 中国煤炭科工集团太原研究院有限公司 Shake eliminating system, method and device for lifting workbench
CN114793514A (en) * 2022-05-18 2022-07-29 扬州大学 Electromagnetic moving lifting extension chassis and working method thereof
CN114793514B (en) * 2022-05-18 2023-11-21 扬州大学 Electromagnetic mobile lifting extension chassis and working method thereof

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