JPH05208342A - Thermal displacement correcting method for screw feed mechanism - Google Patents
Thermal displacement correcting method for screw feed mechanismInfo
- Publication number
- JPH05208342A JPH05208342A JP4037147A JP3714792A JPH05208342A JP H05208342 A JPH05208342 A JP H05208342A JP 4037147 A JP4037147 A JP 4037147A JP 3714792 A JP3714792 A JP 3714792A JP H05208342 A JPH05208342 A JP H05208342A
- Authority
- JP
- Japan
- Prior art keywords
- feed screw
- feed
- screw
- thermal displacement
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 11
- 230000006870 function Effects 0.000 description 12
- 238000005259 measurement Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000020169 heat generation Effects 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Automatic Control Of Machine Tools (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、工作機械等のネジ送
り機構において送りネジの熱変位による位置決め誤差を
補正する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of correcting a positioning error due to thermal displacement of a feed screw in a screw feed mechanism of a machine tool or the like.
【０００２】[0002]
【従来の技術】一般に、送りネジの回転に伴いテーブル
等の移動体を位置決めするネジ送り機構においては、駆
動時の摩擦熱によって送りネジが膨脹する。そこで、従
来、送りネジに予張力を付与して熱膨張を抑制する方法
が提案されている。2. Description of the Related Art Generally, in a screw feed mechanism for positioning a moving body such as a table as the feed screw rotates, the feed screw expands due to frictional heat during driving. Therefore, conventionally, a method of applying pre-tension to the feed screw to suppress thermal expansion has been proposed.
【０００３】[0003]
【発明が解決しようとする課題】この従来方法によれ
ば、送りネジの長手方向各部における温度分布が均一で
ある場合に、熱膨張による位置決め誤差を有効に解消す
ることができる。ところが、送りネジの一部分を使用し
てテーブルを位置決めするような場合には、送りネジが
局部的に発熱するため、その部分だけ伸び他の部分は相
対的に収縮して、全体の位置決め精度が低下するという
問題があった。According to this conventional method, a positioning error due to thermal expansion can be effectively eliminated when the temperature distribution in each part of the feed screw in the longitudinal direction is uniform. However, when positioning the table using a part of the feed screw, the feed screw locally heats up, so that only that part expands and the other parts contract relatively, so that the overall positioning accuracy increases. There was a problem of lowering.
【０００４】そこで、この発明の課題は、常時送りネジ
の一部分を使用し時々他の部分で位置決めするような場
合でも、送りネジの全長にわたって熱変位による位置決
め誤差を正確に補正できる方法を提供することにある。Therefore, an object of the present invention is to provide a method capable of accurately correcting a positioning error due to thermal displacement over the entire length of the feed screw even when a part of the feed screw is always used and the other part is sometimes positioned. Especially.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明は、予張力が付与された送りネジにより
移動体を位置決めするネジ送り機構において、送りネジ
の一端にて長手方向の変位量を検出し、その検出値に基
づいて送りネジの長手方向各部の位置決め誤差を補正す
るという方法を採用した。In order to solve the above-mentioned problems, the present invention relates to a screw feed mechanism for positioning a moving body by means of a pre-tensioned feed screw. We adopted a method that detects the amount of displacement and corrects the positioning error of each part of the feed screw in the longitudinal direction based on the detected value.
【０００６】[0006]
【作用】この発明の方法によれば、送りネジの一端の変
位量に基づいて送りネジの長手方向各部の位置決め誤差
が正確に補正されるので、常時送りネジの一部分を使用
し時々他の部分で位置決めするような場合でも、送りネ
ジ全体の位置決め精度を向上することができる。According to the method of the present invention, the positioning error of each part in the longitudinal direction of the feed screw is accurately corrected on the basis of the displacement amount of the one end of the feed screw. Even in the case of positioning with, the positioning accuracy of the entire feed screw can be improved.
【０００７】[0007]
【実施例】以下、この発明を具体化した一実施例を図面
に基づいて説明する。図１は工作機械のネジ送り機構を
示す概略図であり、図において、１はベッド、２は移動
体としてのテーブル、３はボールネジからなる送りネ
ジ、４は送りネジ３に螺合するナットである。送りネジ
３はベッド１に突設した左右一対のブラケット５，６に
軸受７，８を介して支持され、その軸線方向には所定の
予張力が付与されている。送りネジ３の右端には位置検
出器９を備えた送りモータ１０が結合され、このモータ
１０により送りネジ３及びナット４を介してテーブル２
が往復移動される。送りネジ３の左端には測定部１１が
設けられるとともに、これと対応する位置のベッド１に
は測定部１１のギャップ量ｇを検出するギャップセンサ
ー１２が設置され、そのギャップセンサー１２には測定
器１３が接続されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing a screw feed mechanism of a machine tool. In the figure, 1 is a bed, 2 is a table as a moving body, 3 is a feed screw made of a ball screw, 4 is a nut screwed to the feed screw 3. is there. The feed screw 3 is supported by a pair of left and right brackets 5 and 6 protruding from the bed 1 via bearings 7 and 8, and a predetermined pre-tension is applied in the axial direction thereof. A feed motor 10 having a position detector 9 is coupled to the right end of the feed screw 3, and the table 2 is connected by the motor 10 via the feed screw 3 and the nut 4.
Is moved back and forth. A measuring unit 11 is provided at the left end of the feed screw 3, and a gap sensor 12 that detects a gap amount g of the measuring unit 11 is installed on the bed 1 at a position corresponding to the measuring unit 11. The gap sensor 12 has a measuring device. 13 is connected.
【０００８】図２は前記ネジ送り機構の制御回路を示す
ブロック図であり、ＮＣ制御装置１４には、ＮＣプログ
ラムに基づいてテーブル２の送り指令値を発生する送り
指令値発生回路１５、各種の機械定数及び初期設定値等
を記憶する記憶回路１６、送りネジ３の一部分を使用し
て位置決めする際にその発熱部分を特定する発熱部分演
算回路１７、ギャップセンサー１２の測定タイミングを
決定するタイミング決定回路１８、測定器１３の測定値
に基づき送りネジ３の左端の変位量を演算する変位量演
算回路１９、変位量及び機械定数等に基づき送りネジ３
の長手方向各部における複数の誤差補正関数を演算する
関数演算回路２０、位置検出器９からの信号に基づき送
りネジ３の位置に応じた補正関数を選択する関数選択回
路２１、選択した補正関数から熱膨張誤差の補正値を決
定する補正値決定回路２２、過剰発熱時にアラームを発
生するアラーム発生回路２３、及び、誤差補正値で送り
モータ１０を駆動するモータドライブ回路２４が設けら
れている。FIG. 2 is a block diagram showing a control circuit of the screw feed mechanism. The NC control device 14 includes a feed command value generation circuit 15 for generating a feed command value for the table 2 based on an NC program, and various types of feed command value generation circuits 15. A memory circuit 16 for storing mechanical constants and initial setting values, a heat generation part calculation circuit 17 for specifying a heat generation part when positioning is performed using a part of the feed screw 3, and a timing determination for determining the measurement timing of the gap sensor 12. A displacement amount calculation circuit 19 for calculating the displacement amount of the left end of the feed screw 3 based on the measurement values of the circuit 18 and the measuring device 13, the feed screw 3 based on the displacement amount and the mechanical constants
From the function calculation circuit 20 that calculates a plurality of error correction functions in each part in the longitudinal direction, the function selection circuit 21 that selects the correction function according to the position of the feed screw 3 based on the signal from the position detector 9, and the selected correction function. A correction value determination circuit 22 that determines a correction value of the thermal expansion error, an alarm generation circuit 23 that generates an alarm when excessive heat is generated, and a motor drive circuit 24 that drives the feed motor 10 with the error correction value are provided.
【０００９】上記のように構成されたネジ送り機構にお
いて、次に、熱膨張誤差の補正方法について説明する。
図３に示すように、左右のブラケット５，６の間隔より
もΔだけ短い長さＬの送りネジ３を予張力Ｔを付与して
組付けると、各ブラケット５，６がΔａ，Δｂだけ変位
した状態で、送りネジ３が発熱によりλだけ熱膨脹する
（Δ＝Δａ＋Δｂ＋λ）。例えば、小型旋盤のＺ軸の場
合、１２００ｍｍの送りネジ３は４３０Ｋｇの予張力で
３°Ｃの温度変化により４５μｍだけ膨脹する。送りネ
ジ３が各部均一な温度分布で膨脹した場合は、送りネジ
３が伸びた分だけブラケット５，６が復元するため、テ
ーブル２の位置決め誤差を実質的に解消することができ
る。Next, a method of correcting the thermal expansion error in the screw feed mechanism constructed as described above will be described.
As shown in FIG. 3, when the lead screw 3 having a length L, which is shorter than the distance between the left and right brackets 5 and 6 by Δ, is attached with a pretension T, the brackets 5 and 6 are displaced by Δa and Δb. In this state, the feed screw 3 thermally expands by λ due to heat generation (Δ = Δa + Δb + λ). For example, in the case of the Z axis of a small lathe, the 1200 mm feed screw 3 expands by 45 μm due to a temperature change of 3 ° C. with a pretension of 430 kg. When the feed screw 3 expands with a uniform temperature distribution in each part, the brackets 5 and 6 are restored by the amount of extension of the feed screw 3, so that the positioning error of the table 2 can be substantially eliminated.
【００１０】しかしながら、送りネジ３の一部分を使用
して位置決めするような加工状態においては、図４に示
すように、Ｌ２の部分がΔｔだけ局部的に発熱し、送り
ネジ３はこの部分で膨脹し、他の部分Ｌ１，Ｌ３では相
対的に収縮する。いま、 λ２：温度上昇分ΔｔによるＬ２部分の膨脹量 λ１：Ｌ２部分の伸びによるＬ１部分の相対的収縮量 λ３：Ｌ２部分の伸びによるＬ３部分の相対的収縮量 δａ：Ｌ２部分の伸びによるブラケット５の復元した変
位量 δｂ：Ｌ２部分の伸びによるブラケット６の復元した変
位量 ΔＴ：温度上昇分Δｔによる予張力Ｔの変化量 ＧＡ：軸受７を含むブラケット５のバネ定数 ＧＢ：軸受８を含むブラケット６のバネ定数 ＧＳ：送りネジ３のバネ定数 とすると、以下の関係式が成立する。However, in a working state in which a part of the feed screw 3 is used for positioning, as shown in FIG. 4, the portion L2 locally heats by Δt, and the feed screw 3 expands at this portion. However, the other portions L1 and L3 relatively contract. Now, λ2: expansion amount of L2 portion due to temperature increase Δt λ1: relative shrinkage amount of L1 portion due to elongation of L2 portion λ3: relative shrinkage amount of L3 portion due to elongation of L2 portion δa: bracket due to extension of L2 portion 5 the restored displacement amount of δb: the restored displacement amount of the bracket 6 due to the extension of the L2 portion ΔT: the change amount of the pre-tension T due to the temperature increase amount Δt GA: the spring constant of the bracket 5 including the bearing 7 GB: including the bearing 8 Spring constant of bracket 6 GS: If the spring constant of the feed screw 3 is used, the following relational expression holds.
【００１１】[0011]
【数１】 [Equation 1]
【００１２】上記（６式）及び（７式）において、Ｇ
Ａ，ＧＢ，ＧＳ，Ｌは機械定数としてＮＣ制御装置１４
の記憶回路１６に設定される。例えば、小型旋盤のＺ軸
の場合、送りネジ３の長さ：１２００ｍｍ、そのバネ定
数：９．５Ｋｇ／μｍ、ブラケット５，６のバネ定数：
４０Ｋｇ／μｍ、軸受７，８のバネ定数：１７０Ｋｇ／
μｍである。また、Ｌ１，Ｌ２は発熱部分演算回路１７
により演算され、初期設定値として記憶回路１６に格納
される。したがって、ブラケット５の変位量δａをギャ
ップセンサー１２で測定することにより、Ｌ２部分の膨
脹量λ２及びＬ１部分の収縮量λ１を求めることができ
る。In the above equations (6) and (7), G
A, GB, GS and L are NC constants 14 as mechanical constants.
Is set in the memory circuit 16. For example, in the case of the Z axis of a small lathe, the length of the feed screw 3 is 1200 mm, its spring constant is 9.5 kg / μm, and the spring constants of the brackets 5 and 6 are:
40 kg / μm, spring constant of bearings 7, 8: 170 kg /
μm. Further, L1 and L2 are the heat generation partial arithmetic circuit 17
And is stored in the memory circuit 16 as an initial setting value. Therefore, by measuring the displacement amount δa of the bracket 5 with the gap sensor 12, the expansion amount λ2 of the L2 portion and the contraction amount λ1 of the L1 portion can be obtained.
【００１３】ところで、ギャップセンサー１２による測
定時には、図５に示すように、送りネジ３の振れにより
測定部１１の中心Ｏがギャップセンサー１２からずれた
り、加減速時の慣性力及び摺動抵抗を含む送り力により
ブラケット５，６が変形して測定部１１の中心Ｏが傾い
たりする可能性があり、これらは測定誤差の要因とな
る。振れによる誤差を排除する対策としては、送りネジ
３の１回転中の平均値または最大値を測定する方法があ
る。また、図５に示すように、送りネジ３の外周にドッ
ク２５を取付け、これを近接スイッチ２６で検出し、位
置検出器９の出力に基づいて測定タイミングを特定する
方法も有効である。送り力による誤差を排除するために
は、図６に示すように、測定タイミングを等速送り区間
に設定し、左行時及び右行時における測定部１１の平均
ギャップ量を求める。送りネジ３が発熱した状態での平
均ギャップ量をｇｓ、発熱がない状態でのギャップ量を
ｇ０とすると、ブラケット５の変位量δａは次式で求め
られる。 δａ＝ｇｓ−ｇ０ （８式） この実施例においては、タイミング決定回路１８が前記
測定タイミングを決定し、そこからの信号に応答し、変
位量演算回路１９が上記（８式）の演算を実行してブラ
ケット５の変位量δａを求める。By the way, at the time of measurement by the gap sensor 12, as shown in FIG. 5, the center O of the measuring portion 11 is deviated from the gap sensor 12 due to the deflection of the feed screw 3, and the inertia force and sliding resistance at the time of acceleration / deceleration are measured. There is a possibility that the brackets 5 and 6 will be deformed by the included feeding force and the center O of the measurement unit 11 will be tilted, which will cause a measurement error. As a measure for eliminating the error due to the runout, there is a method of measuring the average value or the maximum value of the feed screw 3 during one rotation. Further, as shown in FIG. 5, a method in which a dock 25 is attached to the outer circumference of the feed screw 3, this is detected by the proximity switch 26, and the measurement timing is specified based on the output of the position detector 9 is also effective. In order to eliminate the error due to the feeding force, as shown in FIG. 6, the measurement timing is set to the constant velocity feeding section, and the average gap amount of the measuring unit 11 at the time of leftward traveling and rightward traveling is obtained. When the average gap amount when the feed screw 3 is heated is gs and the gap amount when no heat is generated is g0, the displacement amount δa of the bracket 5 is calculated by the following equation. δa = gs-g0 (Equation 8) In this embodiment, the timing determination circuit 18 determines the measurement timing, and in response to the signal from the measurement timing, the displacement amount operation circuit 19 executes the operation of the above (Equation 8). Then, the displacement amount δa of the bracket 5 is obtained.
【００１４】送りネジ３の長手方向各部の位置決め誤差
を補正するためには、図７に破線で示すような補正値曲
線を得る必要がある。送り指令値発生回路１５の指令値
ｘがＬ１区間にあるとき、誤差補正値Ｈ１は次式により
求められる。In order to correct the positioning error of each part of the feed screw 3 in the longitudinal direction, it is necessary to obtain a correction value curve as shown by the broken line in FIG. When the command value x of the feed command value generation circuit 15 is in the L1 section, the error correction value H1 is obtained by the following equation.
【００１５】[0015]
【数２】 [Equation 2]
【００１６】また、指令値ｘがＬ２区間にあるときに
は、誤差補正値Ｈ２は次式により求められる。When the command value x is in the L2 section, the error correction value H2 is obtained by the following equation.
【００１７】[0017]
【数３】 [Equation 3]
【００１８】指令値ｘがＬ３区間にあるときには、誤差
補正値Ｈ３は次式で求められる。When the command value x is in the L3 section, the error correction value H3 is obtained by the following equation.
【００１９】[0019]
【数４】 [Equation 4]
【００２０】上記（９式）、（１０式）及び（１１式）
から明らかなように、各区間Ｌ１，Ｌ２，Ｌ３の誤差補
正値Ｈ１，Ｈ２，Ｈ３はいずれもブラケット５の変位量
δａの関数として求められる。そして、各区間Ｌ１，Ｌ
２，Ｌ３の関数は関数演算回路２０で演算され、関数選
択回路２１にて送りネジ３の位置に応じて選択され、そ
の選択した補正関数に基づき誤差補正値Ｈ１，Ｈ２，Ｈ
３が補正値決定回路２２によって決定される。これによ
り、送りネジ３の長手方向各部の位置決め誤差が正確に
補正され、その補正値に基づきモータドライブ回路２４
により送りモータ１０が駆動される。この結果、常時送
りネジ３の一部分Ｌ２を使用し時々両端部分でテーブル
２を位置決めするような場合でも、送りネジ３全体の位
置決め精度を向上することができる。なお、過剰発熱に
伴い軸受７，８に過大なスラスト荷重が作用しないよう
に、記憶回路１６にはブラケット５，６の許容変位量δ
ａlimit が設定されていて、変位量演算回路１９でδａ
＞δａlimit が判別されたときには、アラーム発生回路
２３がブザーまたはランプ等の警報手段（図示略）を作
動させる。The above equations (9), (10) and (11)
As is clear from the above, the error correction values H1, H2, H3 in each of the sections L1, L2, L3 are all obtained as a function of the displacement amount δa of the bracket 5. Then, each section L1, L
The functions 2 and L3 are calculated by the function calculation circuit 20, selected by the function selection circuit 21 according to the position of the feed screw 3, and the error correction values H1, H2, H based on the selected correction function.
3 is determined by the correction value determination circuit 22. As a result, the positioning error of each part of the feed screw 3 in the longitudinal direction is accurately corrected, and the motor drive circuit 24 is corrected based on the correction value.
The feed motor 10 is driven by. As a result, the positioning accuracy of the entire feed screw 3 can be improved even when the table L is always positioned at both ends by using the part L2 of the feed screw 3 at all times. In order to prevent an excessive thrust load from acting on the bearings 7 and 8 due to excessive heat generation, the memory circuit 16 has an allowable displacement δ of the brackets 5 and 6.
alimit is set, and δa is set in the displacement amount calculation circuit 19.
When> δalimit is determined, the alarm generation circuit 23 activates alarm means (not shown) such as a buzzer or a lamp.
【００２１】この発明は上記実施例に限定されるもので
はなく、工作機械のコラム、サドル等の移動体のネジ送
り機構に適用したり、或いは、工作機械以外の各種位置
決め機構に応用したりするなど、本発明の趣旨を逸脱し
ない範囲で各部の形状並びに構成を適宜に変更して具体
化することも可能である。The present invention is not limited to the above embodiment, but is applied to a screw feed mechanism of a moving body such as a column or saddle of a machine tool, or to various positioning mechanisms other than the machine tool. For example, the shapes and configurations of the respective parts can be appropriately modified and embodied without departing from the spirit of the present invention.
【００２２】[0022]
【発明の効果】以上に詳述したように、この発明によれ
ば、送りネジの一端の変位量に基づいて送りネジの長手
方向各部の位置決め誤差が正確に補正されるので、常時
送りネジの一部分を使用し時々他の部分で位置決めする
ような場合でも、送りネジ全体の位置決め精度を向上で
きるという優れた効果を奏する。As described above in detail, according to the present invention, the positioning error of each portion in the longitudinal direction of the feed screw is accurately corrected based on the displacement amount of the one end of the feed screw, so that the feed screw is always operated. Even when a part is used and sometimes the other part is positioned, it is possible to improve the positioning accuracy of the entire feed screw.
【図１】本発明の一実施例を示すネジ送り機構の概略図
である。FIG. 1 is a schematic view of a screw feeding mechanism showing an embodiment of the present invention.
【図２】図１のネジ送り機構の制御回路を示すブロック
図である。FIG. 2 is a block diagram showing a control circuit of the screw feeding mechanism of FIG.
【図３】予張力によるネジ送り機構各部の変形状態を示
す説明図である。FIG. 3 is an explanatory diagram showing a deformed state of each part of the screw feeding mechanism due to pretension.
【図４】局部発熱による送りネジの変位状態を示す説明
図である。FIG. 4 is an explanatory diagram showing a displacement state of a feed screw due to local heat generation.
【図５】変位量測定時の誤差排除方法を示す説明図であ
る。FIG. 5 is an explanatory diagram showing an error elimination method when measuring a displacement amount.
【図６】変位量測定タイミングを示す説明図である。FIG. 6 is an explanatory diagram showing displacement amount measurement timing.
【図７】誤差曲線及び補正値曲線を示す説明図である。FIG. 7 is an explanatory diagram showing an error curve and a correction value curve.
１・・ベッド、２・・テーブル、３・・送りネジ、４・
・ナット、５，６・・ブラケット、７，８・・軸受、９
・・位置検出器、１０・・送りモータ、１１・・測定
部、１２・・ギャップセンサー、１３・・測定器、１４
・・ＮＣ制御装置、１５・・送り指令値発生回路、１６
・・記憶回路、１７・・発熱部分演算回路、１８・・タ
イミング決定回路、１９・・変位量演算回路、２０・・
関数演算回路、２１・・関数選択回路、２２・・補正値
決定回路、２３・・アラーム発生回路、２４・・モータ
ドライブ回路、２５・・ドック、２６・・近接スイッ
チ。1 ... Bed, 2 ... Table, 3 ... Feed screw, 4 ...
.Nuts, 5, 6 ... Brackets, 7, 8 ... Bearings, 9
..Position detectors, 10 ... Feed motors, 11 ... Measuring units, 12 ... Gap sensors, 13 ... Measuring instruments, 14
..NC controller, 15 ... Feed command value generation circuit, 16
..Memory circuit, 17 ... Heating part calculation circuit, 18..Timing determination circuit, 19 ... Displacement amount calculation circuit, 20 ..
Function calculation circuit, 21 ... Function selection circuit, 22 ... Correction value determination circuit, 23 ... Alarm generation circuit, 24 ... Motor drive circuit, 25 ... Dock, 26 ... Proximity switch
Claims (1)
体を位置決めするネジ送り機構において、送りネジの一
端にて長手方向の変位量を検出し、その検出値に基づい
て送りネジの長手方向各部の位置決め誤差を補正するこ
とを特徴とする熱変位補正方法。1. A screw feed mechanism for positioning a moving body with a feed screw to which a pretension is applied, detects a displacement amount in the longitudinal direction at one end of the feed screw, and detects the longitudinal direction of the feed screw based on the detected value. A thermal displacement correction method characterized by correcting a positioning error of each part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03714792A JP3292958B2 (en) | 1992-01-27 | 1992-01-27 | Thermal displacement compensation method for screw feed mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03714792A JP3292958B2 (en) | 1992-01-27 | 1992-01-27 | Thermal displacement compensation method for screw feed mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05208342A true JPH05208342A (en) | 1993-08-20 |
| JP3292958B2 JP3292958B2 (en) | 2002-06-17 |
Family
ID=12489502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03714792A Expired - Fee Related JP3292958B2 (en) | 1992-01-27 | 1992-01-27 | Thermal displacement compensation method for screw feed mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3292958B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10353029B3 (en) * | 2003-11-13 | 2004-08-19 | Heidelberger Druckmaschinen Ag | Displacement spindle length variation measuring method, for printing plate exposure device, uses measurement of stepping motor clock pulses for displacement of exposure head carrier along reference path |
| KR100458453B1 (en) * | 2002-06-26 | 2004-11-26 | (주)넥스턴 | A correction apparatus and correction method for a automatic lathe |
| WO2015196222A1 (en) * | 2014-06-24 | 2015-12-30 | Anton Paar Gmbh | Positioning unit |
| US9448545B2 (en) | 2012-10-30 | 2016-09-20 | Fanuc Corporation | Servo control device for performing correction based on amount of stretch or contraction of ball screw |
| CN120890340A (en) * | 2025-09-30 | 2025-11-04 | 通用技术集团机床工程研究院有限公司 | A device and method for detecting thermal elongation of lead screws |
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| TWI600492B (en) * | 2015-04-01 | 2017-10-01 | Hiwin Tech Corp | Compensation screw lead error method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3126544U (en) | 2006-07-25 | 2006-11-02 | 永田販売株式会社 | Box truck |
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1992
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100458453B1 (en) * | 2002-06-26 | 2004-11-26 | (주)넥스턴 | A correction apparatus and correction method for a automatic lathe |
| DE10353029B3 (en) * | 2003-11-13 | 2004-08-19 | Heidelberger Druckmaschinen Ag | Displacement spindle length variation measuring method, for printing plate exposure device, uses measurement of stepping motor clock pulses for displacement of exposure head carrier along reference path |
| US7281779B2 (en) | 2003-11-13 | 2007-10-16 | Heidelberger Druckmaschinen Ag | Apparatus and method for measuring the length change of the feed spindle in an exposer for printing originals |
| US9448545B2 (en) | 2012-10-30 | 2016-09-20 | Fanuc Corporation | Servo control device for performing correction based on amount of stretch or contraction of ball screw |
| WO2015196222A1 (en) * | 2014-06-24 | 2015-12-30 | Anton Paar Gmbh | Positioning unit |
| AT515951A1 (en) * | 2014-06-24 | 2016-01-15 | Anton Paar Gmbh | positioning |
| AT515951B1 (en) * | 2014-06-24 | 2016-05-15 | Anton Paar Gmbh | positioning |
| GB2541830A (en) * | 2014-06-24 | 2017-03-01 | Anton Paar Gmbh | Positioning Unit |
| CN106715042A (en) * | 2014-06-24 | 2017-05-24 | 安东帕有限责任公司 | Positioning unit |
| GB2541830B (en) * | 2014-06-24 | 2020-12-02 | Anton Paar Gmbh | Positioning Unit |
| CN120890340A (en) * | 2025-09-30 | 2025-11-04 | 通用技术集团机床工程研究院有限公司 | A device and method for detecting thermal elongation of lead screws |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3292958B2 (en) | 2002-06-17 |
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