差動アジャスターネジ
![](https://www.thorlabs.co.jp/Images/GuideImages/1195_DiffAdjuster_7.jpg)
- 1/4"-80, 1/4"-100, or M6 x 0.25 Coarse Adjustment Thread
- 25 µm/rev Fine Adjustment Over 400 µm of Travel
- 1.02" Imperial or 25.6 mm Metric Adjuster Length
Use the DAS110 in
Our Kinematic Mirror
Mounts for Ultra-Fine
Differential Tip & Tilt
KM200
Post and
Post Holder
Not Included
DAS110
1/4"-80 Externally Threaded Differential Adjuster
US Patent 7,421,918
![](../../images/loading-red.gif)
Please Wait
Selection Guide for Adjustment Screws |
---|
Imperial |
6 - 80 |
3/16" - 100 |
3/16"-120 |
1/4" - 80 |
1/4" - 100 |
1/4"-100 Matched Adjuster/Bushing Pair |
1/4"-170 Matched Adjuster/Bushing Pair |
3/8"-100 |
Metric |
M2 x 0.20 |
M2.5 × 0.20 |
M3 × 0.20 |
M3 × 0.25 |
M4 x 0.25 |
M6 × 0.25 |
Differential Adjuster Screws |
![DAS110 Mechanical Drawing](https://www.thorlabs.co.jp/images/TabImages/DiffAdjuster_D1-250.gif)
Click to Enlarge
粗調整ネジの長さとアジャスタの長さ(L)
![DAS110 Mechanical Drawing](https://www.thorlabs.co.jp/images/TabImages/DAS110_Differential_Adjuster_D2-400.gif)
Click for Details
差動アジャスターネジ内部の部品を示した断面図
特長
- ネジの長さ
- DAS110、DAS25U: 26.0 mm
- DAS6M: 25.6 mm
- 粗調整ネジ: 1/4"-80、1/4"-100、またはM6 x 0.25
- 微調整: 25 µm/回転、 移動量 ≥400 µm
- ロッキングリング:外径Ø12.4 mm、厚さ3.8 mm
- 軸上の耐荷重: 5.1 kg
- 推奨される予荷重: 0.5~1 kg
当社の差動アジャスータネジは、対応する部品とスムーズに結合できるようあらかじめグリースが付いています。アジャスタを取り付ける際は、ネジを手でブッシュにねじ込んでください。ネジが斜めに入ると、アジャスタとブッシュが損傷する可能性があるのでご注意ください。また、各アジャスターネジには外径Ø12.4 mm、厚さ3.8 mmのロッキングリングが付属していますが、その表面はグリップしやすいようにローレット加工されています。ロッキングリングにはØ2.3 mmの止まり穴が4つあり、それらに六角レンチを挿入して締め付け作業を補助することができます。
差動アジャスターネジDAS110は、当社の多くのキネマティックミラーマウントで使われている標準の1/4”-80アジャスタと交換して使用することができます。
粗調整
対応するコンポーネントと組合わせて使用したときには、本体の外ネジ(右図のB)で粗調整を行うことができます。この外ネジは、取り付けられているノブ(右図のA)または2 mmの六角ソケットを用いて操作できます。スペースが制限されている場合には、ノブを取り外すこともできます。
微調整
微調整機構では、1 回転あたりの変位量は25 µmと大幅に小さくなります。粗調整用の2 mm六角穴の中心に1/16"六角レンチを貫通させると、この微調整機構を操作することができます。
上図のように、中間アクチュエータ:Cは、本体のネジ部分:Bの内側と、ボール状の先端が付いているプッシュロッド:Dの外側にねじ込まれています。プッシュロッドに付いているピンは本体のスロットにぴったりと収まっており、お互いに回転しないようになっています。そのため、中間アクチュエータが1回転すると、中間アクチュエータはその外ネジのピッチによって定められた距離だけ本体の軸に沿って移動しますが、プッシュロッドは中間アクチュエータの内ネジのピッチによって定められた距離だけ反対方向に移動します。このようにして、中間アクチュエータとプッシュロッドの間で2つのピッチの差に伴う移動(差動)が生じます。
下記掲載のアクチュエータの場合、中間アクチュエータの外ネジのピッチは400 µm、内ネジのピッチは375 µmです。中間アクチュエータを時計回りに1回転すると、中間アクチュエータは本体内部で400 µm移動します。この時、プッシュロッドは本体により回転が抑えられるため、375 µm後退します。従って、合計の移動量は25 µm/回転になります。
Item # | Coarse Adjustment Thread | Adjuster Length (L) | Coarse Thread Lengtha | Coarse Adjustment Hex | Fine Adjustment Hex |
---|---|---|---|---|---|
DAS110 | 1/4"-80 | 1.02" (26 mm) | 0.76" (19.3 mm) | 5/64" (2 mm) | 1/16" |
DAS25U | 1/4"-100 | ||||
DAS6M | M6 x 0.25 | 1.01" (25.6 mm) |
精密ネジの生産能力
当社は、ニュージャージー州ニュートンにある自社工場内で精密ネジやブッシュを生産しています。 当社の設備ではネジ径2 mm~20 mm、最大長さ165 mm、最大TPI200の製品が製造可能です。 当社の標準のアジャスターネジの先端には硬化鋼ボールが付いていますが、硬化鋼ボール無しでもご提供可能です。カスタムオーダは個別に承っておりますので、詳しくは当社へお問い合わせください。当社では標準品の精密ネジもご用意しております。詳しくはこちらからご覧いただけます。
ご注文に素早く対応
カスタム仕様ならびに量産(OEM)対応の精密ネジは、熟練の機械工が当社保有のCitizen製スイス型自動旋盤を24時間稼働することで大量に生産されています。 各機械は無人運転で稼働しており、毎30~120秒でネジ1本を製造します。 このように製造に融通がきくため、1度に複数の注文を、品質に妥協することなく製造することが可能です。
高品質
当社では最初の製造過程終了後のネジやブッシュすべてを、梱包直前に検査します。 すべての検査項目はANSI AQL1.5の合格品質水準に準拠しており、製造ロット量に応じた一定の割合の製品が仕様に満たない場合、その製造ロットすべての製品が販売されることはありません。 これにより高品質で同等の性能を持つ製品を確実にすべてのお客様にお届けしています。
精密ネジの製造
Posted Comments: | |
Duane Dudley
 (posted 2022-03-29 12:39:35.217) Does the internal mechanism have oil / grease lubricant? We were planning on having it sent out for vacuum-compatible cleaning.
Thank you! jdelia
 (posted 2022-03-30 10:04:15.0) Thank you for contacting Thorlabs. We currently use an Apiezon grease mixture in our DAS110. I have contacted you directly to discuss your application further. Jeremy Canonge
 (posted 2021-03-17 09:45:28.933) Hello,
I have a very sensitive optical application that will be subject to large changes in temperature. I was hoping to use these adjustors for fine alignment of the system, which will require that they remain as a part of the system during operation. I will need to know the CTE's of each component within the assembly to properly account for its dimensional changes over temperature. Can you please provide this information, or at a bare minimum, the material of each component used within the assembly?
Thank you,
Jeremy Canonge YLohia
 (posted 2021-03-18 02:37:17.0) Hello Jeremy, thank you for contacting Thorlabs. Following are the components and materials used. Main Body, Pushrod, Actuator, and Adjuster Stop: 303 Stainless Steel. Steel Ball Bearing: 440 SS. Hex Knob: 6061-T6 Aluminum. Locking Nut: 510 Phosphor Bronze. user
 (posted 2021-02-24 15:09:35.733) It would be great to have differential actuators similar to DAS110 that are compatible with the Polaris mirror mounts! YLohia
 (posted 2021-03-12 04:03:51.0) Hello, thank you for your feedback. We will consider adding such an item to our catalog in the future. fabien.l.lalisse
 (posted 2017-12-14 11:59:46.617) Hi,
I have a question. Can I use you product for aerospace application ? Is it vaccum proof ? If not why ? Dou you suggest a lubricate between screw and bushing ?
Thanks
Regards tfrisch
 (posted 2017-12-15 08:47:38.0) Hello, thank you for contacting Thorlabs. Unfortunately, the stock version of DAS110 is not vacuum compatible as it has an anodized aluminum knob and glue to hold the ball and dowel pin. However, we can offer a ventilated and vacuum compatible version. We will reach out to you about your application and what level of vacuum you will be operating in. tcohen
 (posted 2012-05-03 16:01:00.0) Response from Tim at Thorlabs: Thank you for providing your solution! This is the recommended way to remove the knob. user
 (posted 2012-05-03 15:33:40.0) You can insert a 5/64" ball driver in the back to hold the screw stationary and then rotate the knob with your fingers to unscrew. This worked for me. inicolaescu
 (posted 2012-05-03 15:01:04.0) I hust received my order of 8 Differential Adjuster Screws, DAS110. The overview on this page states that the knob can be removed. I could not do it and I don't want to try too hard and damage the thread. How can this be done?
Thank you,
Ion Nicolaescu user
 (posted 2011-12-09 13:14:48.0) A response from Tyler at Thorlabs: Hello Sergio, the differential actuators on this page are not designed for use with a potentiometer. Instead they can be used to replace standard adjustors on optomechanical components to improve the resolution of the adjustment of that component. sergio
 (posted 2011-12-08 11:57:09.0) Hello, I'm not an expert in electricity, but I'm working on a project and need some assistance. I have 10,000 and 100,000 OHM potentiometers to dim lighting in a room. My question is: Does this product work with potentiometers? and how is it installed? Your help will be greatly appreciated. bdada
 (posted 2011-07-29 12:00:00.0) Response from Buki at Thorlabs:
Thank you for sharing your experience. user
 (posted 2011-07-29 11:39:06.0) I had a little trouble getting the actuator to work: In addition to the 1/16" hex socket that turns the differential mechanism, the screw has a concentric 5/64" hex socket that drives the coarse thread. Thats not much bigger, and the 1/16" hex key I was using was a bit oversized, at 0.072". It was catching on the coarse adjust, and not letting the differential adjustment turn. The folks at tech support were very helpful, and all is good now. But I thought Id post here in case someone else has the same problem. jjurado
 (posted 2011-07-07 13:24:00.0) Response from Javier at Thorlabs to brian: Thank you very much for your feedback! We will update the presentation of the DAS110 differential adjustment screw shortly to reflect all the changes you suggest here. brian
 (posted 2011-07-07 09:56:09.0) I find that the picture on the right is too low resolution to easily understand the mechanism. The load rating mentioned here in the feedback area should probably be posted on the product description page. I also think it would be helpful if the matching brass inserts were shown in the related products. jjurado
 (posted 2011-06-14 15:20:00.0) Response from Javier at Thorlabs to charley.hale: Thank you very much for contacting us. We currently do not have a concise value for the optimal preload when using this actuator. However, a preload of 1-2 lbs should provide enough support for the actuator to rotate smoothly. Keep in mind that this value should be subtracted from the maximum load capacity value of 11.25 lbs when using heavy loads. charley.hale
 (posted 2011-05-09 13:56:44.0) I am also keen to know the optimal preload for this actuator; has it been posted elsewhere since the question noted earlier below? bdada
 (posted 2011-04-13 14:19:00.0) Response from Buki at Thorlabs:
The maximum load on the screw is 11.25 lbs or 5.1 kg. We will post the recommended preload shortly. user
 (posted 2011-04-12 15:59:51.0) What is the maximum load on the screw? What is the recommended preload for the screw? Greg
 (posted 2011-01-11 11:07:45.0) A response from Greg at Thorlabs to carollo: We do not currently have a backlash specification for the DAS110. The adjuster is commonly used with a preload, which significantly minimizes backlash. However, I am working with our Mechanics group to see if they can give a nominal backlash value for you. carollo
 (posted 2011-01-06 15:02:54.0) Is there a backlash specification for the coarse and fine adjustments? High spatial resolution is great, but if it comes with significant backlash that is an important consideration.
Thanks! apalmentieri
 (posted 2010-03-09 12:17:32.0) A response from Adam at Thorlabs to rivale23: You do not need two actuators to perform fine movements. All you need is a 1/16" hex wrench. A description of how the fine adjustment is below.
The fine-adjustment (25 µm/rev) is actuated by inserting a hex wrench through the clearance hole in the adjuster knob. Each rotation of the DAS110 fine-adjustment mechanism yields a highly de-magnified displacement of just 25 µm.
The Main Body "B" is also internally threaded with an M3-0.40 thread, this thread holds the intermediate actuator "C", which may be rotated by a hex wrench. The key to the design is that the intermediate actuator is both internally and externally threaded allowing a differential movement to be achieved between the intermediate actuator "C" and the Push Rod "D". See image under the overview tab.
The external thread of the intermediate actuator is the same M3-0.40 mm thread internal to the Main Body. When the intermediate actuator is rotated clockwise, it moves out of the Main body by 400 µm per revolution. Connected to the internal thread of the intermediate actuator is the Push Rod; the Push Rod mates to the intermediate actuator via a M3-0.375 thread and is restricted from rotating by the main body. Now as intermediate actuatoris rotated, it advances at the rate of 400 µm/rev. but the Push Rod retreats at 375 µm/rev. This results in a differential motion of the Push Rod that is equal to the net difference of the pitch of the two threads for total displacement of 25 µm/rev. rivale23
 (posted 2010-03-09 12:10:11.0) I need to know how does the fine movement works, i mean, once the wrench is inserted the movement turns to fine, do i need two moves to have the fine move?, or i need only one actuator to mke the screw move with the fine move klee
 (posted 2009-09-29 10:04:00.0) A response from Ken at Thorlabs to john: We will send you the drawings in DWG format that should work with AutoCAD Rev 14. john
 (posted 2009-09-29 09:16:29.0) I cannot open the DXF copy of the design drawing. Im using AutoCAD Rev 14. Is there a problem with this version klee
 (posted 2009-08-26 15:37:27.0) A response from Ken at Thorlabs to mfaraday and aeinstein: The range of the fine adjustment for the DAS110 is about 250um. The locking nut is included with the DAS110. aeinstein
 (posted 2009-08-25 22:07:26.0) Is a locking nut included, one is shown in photo at the top of the page but not down where the details of the product are provided. mfaraday
 (posted 2009-08-25 22:04:12.0) Please add the approximate range of the fine motion portion of the DAS110.
FCA200 is still noted in bullets but seems to be removed from page. |