JPH02152744A - Preventing device for fall of nc machine tool - Google Patents
Preventing device for fall of nc machine toolInfo
- Publication number
- JPH02152744A JPH02152744A JP30594788A JP30594788A JPH02152744A JP H02152744 A JPH02152744 A JP H02152744A JP 30594788 A JP30594788 A JP 30594788A JP 30594788 A JP30594788 A JP 30594788A JP H02152744 A JPH02152744 A JP H02152744A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- signal
- voltage drop
- voltage reduction
- moving body
- 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.)
- Pending
Links
- 230000002159 abnormal effect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 15
- 230000002265 prevention Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
- B23Q5/58—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分舒〉
本発明は、ＮＣ工作機械の垂直軸上を移動する垂直移動
体の落下防止装置に関し、特にバランス機構を持たない
ＮＣ工作機械の垂直移動体の落下防止に有効な落下防止
装置に関する。[Detailed Description of the Invention] <Industrial Application> The present invention relates to a fall prevention device for a vertically moving body that moves on the vertical axis of an NC machine tool, and in particular to a fall prevention device for a vertically moving body that moves on the vertical axis of an NC machine tool. This invention relates to a fall prevention device that is effective in preventing bodies from falling.
〈従来の技術〉
従来、ＮＣ工作機械の垂直移動体の落下防止装置の構成
は、第２図のブロック図に示すように、電源電圧信号１
３は電圧低下を検出するＮＣ装置（図示せず）内の電圧
低下検出装置１４に入力する。電圧低下検出装置２１４
は停電等により、電圧が異常に低下したことを検出した
場合は、電圧低下信号１５を出力する。電圧低下信号１
５は、送り制御装置１６に入力する。送り制御装置１６
は、工作物１７を加工する工具１８を取り付けた垂直移
動体１９を、垂直軸方向に移動させるモーター２０を制
御している。モーター２０には、ブレーキ２１が設けら
れており、ブレーキ駆動装置２２によって作動される。<Prior Art> Conventionally, the configuration of a fall prevention device for a vertically movable body of an NC machine tool is as shown in the block diagram of FIG.
3 is input to a voltage drop detection device 14 in an NC device (not shown) that detects a voltage drop. Voltage drop detection device 214
If it detects that the voltage has dropped abnormally due to a power outage or the like, it outputs a voltage drop signal 15. Voltage drop signal 1
5 is input to the feed control device 16. Feed control device 16
controls a motor 20 that moves a vertical moving body 19 to which a tool 18 for machining a workpiece 17 is attached in the vertical axis direction. The motor 20 is provided with a brake 21, which is operated by a brake drive device 22.
送り制御装置１６は電圧低下信号１５によって非常停止
し、準備完了信号２３をブレーキ駆動値Ｗ１２２に出力
する。ブレーキ駆動装置２２は準備完了信号２３によっ
て作動し、信号を出力してブレーキ２１を作動させモー
ター２０の回転を停止する。The feed control device 16 makes an emergency stop in response to the voltage drop signal 15, and outputs a ready signal 23 as the brake drive value W122. The brake drive device 22 is activated by the ready signal 23 and outputs a signal to activate the brake 21 and stop the rotation of the motor 20.
〈発明が解決しようとする課題〉
上記従来技術では、落下防止用ブレーキ２１の作動が遅
れ、垂直移動体１９が落下する。<Problems to be Solved by the Invention> In the above-mentioned conventional technology, the operation of the fall prevention brake 21 is delayed, and the vertical moving body 19 falls.
このため、垂直移動体１９に取り付けれている工具１８
が加工中の工作物１７上に落下し、くい込んで工作物１
７が損傷する。For this reason, the tool 18 attached to the vertical moving body 19
falls onto the workpiece 17 being machined and bites into the workpiece 1.
7 is damaged.
本発明は、上記従来技術の問題点に鑑み、垂直移動体の
落下を防止できる、作動遅れのないＮＣ工作機械の落下
防止装置を提供することを目的とする。SUMMARY OF THE INVENTION In view of the problems of the prior art described above, an object of the present invention is to provide a fall prevention device for an NC machine tool that can prevent a vertically movable body from falling and has no delay in operation.
く課題を解決するための手段〉
本発明は、上記目的を達成するために、停電等による異
常電圧低下を検出し、電圧低下信号を出力する電圧低下
検出装置と、電圧低下信号により作動して、ＮＣ工作機
械の垂直軸上の垂直移動体を移動させるモーターを停止
させるブレーキとを具備していることを特徴とする。Means for Solving the Problems> In order to achieve the above object, the present invention provides a voltage drop detection device that detects an abnormal voltage drop due to a power outage, etc. and outputs a voltage drop signal, and a voltage drop detection device that is activated by the voltage drop signal. , and a brake for stopping a motor that moves a vertical moving body on a vertical axis of an NC machine tool.
く作 用〉
本発明は、上記構成であるため、停電等の為に異常に信
号の電圧が低下した場合、電圧低下検出装置によって電
圧低下が検出され、電圧低下信号が出力される。電圧低
下信号は、落下を防止するモーターのブレーキを作動さ
せ、モーターのサーボ力がなくなる前に、モーターを停
止させる。Effects> Since the present invention has the above configuration, when the voltage of the signal abnormally drops due to a power outage or the like, the voltage drop detection device detects the voltage drop and outputs a voltage drop signal. The voltage drop signal activates the brakes on the motor to prevent it from falling, stopping the motor before it loses servo power.
く実 施 例〉 以下、本発明の一実施例を図に従って説明する。Example of implementation An embodiment of the present invention will be described below with reference to the drawings.
第１図に於て、符号１は電源電圧信号である。電源電圧
信号１は、電圧低下を検出する電圧低下検出装置２，３
に入力する。In FIG. 1, reference numeral 1 represents a power supply voltage signal. The power supply voltage signal 1 is sent to voltage drop detection devices 2 and 3 that detect voltage drops.
Enter.
電圧低下検出装置２は、ＮＣ装置（図示せず）が有して
いる装置であり、電圧低下検出装置３は新に設けたもの
である。電圧低下検出装置２は検出結果である信号４を
、サーボモーター５の回転を制御する送り制御装置６へ
出力する。サーボモーター５は、その回転によって垂直
移動体７を、垂直軸方向に移動させる。そして、垂直移
動体７には、工具８が取り付けられ、工作物９を加工す
る。また、サーボモーター５には、その回転を停止させ
るブレーキ１０が設けられており、ブレーキ駆動装置１
１によって作動させられる。The voltage drop detection device 2 is a device included in the NC device (not shown), and the voltage drop detection device 3 is newly provided. The voltage drop detection device 2 outputs a signal 4 as a detection result to a feed control device 6 that controls the rotation of the servo motor 5. The servo motor 5 moves the vertical moving body 7 in the vertical axis direction by its rotation. A tool 8 is attached to the vertical moving body 7 to process a workpiece 9. Further, the servo motor 5 is provided with a brake 10 for stopping its rotation, and the brake drive device 1
1.
電圧低下検出装置３は、電源電圧信号１の電圧の異常低
下を検出した時、電圧低下信号１２をブレーキ１０を作
動させるブレーキ駆動装置１１に出力する。When the voltage drop detection device 3 detects an abnormal drop in the voltage of the power supply voltage signal 1, it outputs a voltage drop signal 12 to the brake drive device 11 that operates the brake 10.
電源電圧信号１の電圧が異常に低下した場合、電圧低下
検出装置２は、電圧低下信号である信号４を送り制御装
置６へ出力し、送り制御装置６は非常停止する。また、
電圧低下検出装置３も電圧低下信号１２をブレーキ駆動
装置１１へ出力し、前記送り制御装置６が非常停止状態
になりサーボモーター５のサーボ力が無くなる以前に、
ブレーキ１０を作動させてサーボモーター５の回転を停
止する。When the voltage of the power supply voltage signal 1 drops abnormally, the voltage drop detection device 2 outputs a signal 4, which is a voltage drop signal, to the feed control device 6, and the feed control device 6 makes an emergency stop. Also,
The voltage drop detection device 3 also outputs the voltage drop signal 12 to the brake drive device 11, and before the feed control device 6 enters the emergency stop state and the servo force of the servo motor 5 is lost,
The brake 10 is activated to stop the rotation of the servo motor 5.
このため、垂直移動体７は落下せず停止する。Therefore, the vertical moving body 7 does not fall and stops.
〈発明の効果〉
思上説明したように、停電等の異常電圧低下時に垂直移
動体の落下を防止でき、工作物に工具がくい込み工作物
を損傷することを防止できる。<Effects of the Invention> As explained above, it is possible to prevent the vertically movable body from falling in the event of an abnormal voltage drop such as a power outage, and it is possible to prevent the tool from digging into the workpiece and damaging the workpiece.
第１図は本発明の一実施例の構成を示すブロック図、第
２図は従来の技術の構成を示すブロック図である。
図 中、
１．４は信号、２，３は電圧低下検出装置、５はモータ
ー ６は送り制御装置、７は垂直移動体、８は工具、９
は工作物、１０はブレーキ、１１はブレーキ駆動装置、
１２は電圧低下信号である。
特許出願
三菱重工業
代 理FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of a conventional technique. In the figure, 1.4 is a signal, 2 and 3 are voltage drop detection devices, 5 is a motor, 6 is a feed control device, 7 is a vertical moving body, 8 is a tool, 9
is a workpiece, 10 is a brake, 11 is a brake drive device,
12 is a voltage drop signal. Patent application Mitsubishi Heavy Industries agent
Claims (1)
力する電圧低下検出装置と、電圧低下信号により作動し
て、ＮＣ工作機械の垂直軸上の垂直移動体を移動させる
モーターを停止させるブレーキとを具備していることを
特徴とするＮＣ工作機械の落下防止装置。A voltage drop detection device that detects an abnormal voltage drop due to a power outage, etc. and outputs a voltage drop signal, and a brake that is activated by the voltage drop signal to stop the motor that moves the vertical moving body on the vertical axis of the NC machine tool. A fall prevention device for an NC machine tool, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30594788A JPH02152744A (en) | 1988-12-05 | 1988-12-05 | Preventing device for fall of nc machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30594788A JPH02152744A (en) | 1988-12-05 | 1988-12-05 | Preventing device for fall of nc machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02152744A true JPH02152744A (en) | 1990-06-12 |
Family
ID=17951211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30594788A Pending JPH02152744A (en) | 1988-12-05 | 1988-12-05 | Preventing device for fall of nc machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02152744A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998018594A1 (en) * | 1996-10-29 | 1998-05-07 | Washi Kosan Co., Ltd. | Double column-type machine tool, and fall prevention device for vertical feed device in planer-type machine tool |
| CN106475833A (en) * | 2015-08-31 | 2017-03-08 | 兄弟工业株式会社 | Numerical control device and control method |
-
1988
- 1988-12-05 JP JP30594788A patent/JPH02152744A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998018594A1 (en) * | 1996-10-29 | 1998-05-07 | Washi Kosan Co., Ltd. | Double column-type machine tool, and fall prevention device for vertical feed device in planer-type machine tool |
| CN106475833A (en) * | 2015-08-31 | 2017-03-08 | 兄弟工业株式会社 | Numerical control device and control method |
| CN106475833B (en) * | 2015-08-31 | 2018-10-02 | 兄弟工业株式会社 | Numerical control device and control method |
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