CN108139191B - Displacement detection device and optical detection device - Google Patents

Abstract

A displacement detecting device comprising: a plurality of control units each including a display unit configured to display a measurement value based on a detection signal of the sensor head; an operation key provided in each control unit and capable of setting an initial setting value in each of a plurality of initial setting items; and a controller provided in each control unit and having a function of copying the initial setting value from the master device of the control unit to the slave device of the control unit based on an operation of the operation key. A selection device (17) is provided in the controller and the operation key for selecting whether or not to duplicate the initial setting value of the relevant initial setting item at the time of setting operation of the initial setting value of each initial setting item.

Description

Displacement detection device and optical detection device

technical field

The present invention relates to a displacement detection device and an optical detection device that detect displacement of the shape of a measurement target.

Background technique

A displacement detection device that detects displacement of the outer shape of a measurement target includes: a plurality of sensor heads that detect the amount of mechanical displacement of the measurement target and convert the displacement into electrical signals; and a plurality of control units that output detection signals from the respective sensor heads input to the plurality of control units.

The sensor head includes a main shaft telescopically supported to the holder and a contactor provided at an end of the main shaft. When the measurement target is transported to the installation position of the sensor head and the contactor abuts on the measurement target, the displacement amount of the spindle relative to the standard position is detected by the detection unit in the holder, and the displacement amount is converted into an electrical signal.

In a normal measurement operation, each control unit determines whether or not the displacement amount is normal based on detection signals output from the respective sensor heads, and displays the determination result to a display provided in each control unit.

Each control unit is initially set before normal measurement operation. An initial setting operation is performed for each of several items with a master device that is one of the plurality of control units. The initial setting values of several items set by the master device are copied to the slave device as needed.

Patent Document 1 discloses a displacement detection device that brings a movable unit into contact with a measurement target to detect the displacement amount of the measurement target.

prior art documents

Patent Literature

Patent Document 1: JP 2007-240225A

SUMMARY OF THE INVENTION

technical problem

In the above displacement detection apparatus, when an item to be copied from the master device to the slave device is arbitrarily selected from the initial setting values of several items, the items need to be sequentially read out from the copy setting menu, and the items need to be sequentially selected Whether to copy an item after setting the initial settings for all items.

Therefore, it becomes complicated to set the presence/absence of copy selection for several initial setting items.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a displacement detection device that can easily perform copy selection setting from a master device of a control unit to a slave device.

problem solution

The displacement detection device for solving the above problems includes: a plurality of sensor heads, each of which makes the end of the main shaft telescopically supported by the holder abut against the measurement target, thereby detecting the displacement of the measurement target; a plurality of control Each of the control units includes a display unit configured to display a measurement value based on the detection signal of the corresponding sensor head; an operation key, which is provided in each of the control units, and an initial setting value can be set in each of a plurality of initial setting items; and a controller provided in each of the control units and having the function of changing all the settings based on the operation of the operation keys. The initial set value is copied from the master device of the control unit to the function of the slave device of the control unit. The controller and the operation keys are provided with selection means for selecting whether or not to copy the initial settings of the initial setting items when the initial setting value of each of the initial setting items is set. Value.

With this configuration, when the initial setting value of each initial setting item is set, whether or not to copy the initial setting value of the initial setting item is set by the selection means.

In the displacement detection device, the selection device may include: a copy selection setting key, the copy selection setting key being set by the operation key; and a setting unit provided in the controller, and is configured to set a copy selection of an initial setting value for each of the initial setting items based on the operation of the copy selection setting key.

With this configuration, when the initial setting value of each initial setting item is set, the copy selection of the initial setting value of each initial setting item is set based on the operation of the copy selection setting key.

In the displacement detection device, when the copy selection key is operated at each initial setting item, a copy mark indicating the setting of the copy selection may be set in the display unit provided in the control unit.

With this configuration, when the copy selection key is operated, the copy mark is displayed in the display unit, and the copy selection setting can be confirmed.

In the displacement detection device, the initial setting items can be changed after the initial setting. When the set value is changed, the selection means can select whether or not to copy the set value of any setting change item.

With this configuration, when a setting other than the initial setting is changed, it is possible to select whether to copy the setting value of any setting change item.

An optical detection apparatus to solve the above problems includes: a plurality of sensor heads configured to project detection beams to a measurement target to detect the measurement target; a plurality of control units, each of the control units comprising a display unit configured to display a measurement value based on a detection signal of the corresponding sensor head; an operation key provided in each of the control units and capable of being set between several initial setting items An initial setting value is set in each initial setting item; and a controller provided in each of the control units and having the function of changing the initial setting value from the The master device of the control unit replicates the functionality of the slave device of the control unit. The controller and the operation keys are provided with selection means for selecting whether or not to copy the initial setting value of the initial setting item during the setting operation of the initial setting value of each of the initial setting items .

With this configuration, in the optical detection device, at the time of the setting operation of the initial setting value of each initial setting item, whether or not to copy the initial setting value of the initial setting item is set by the selection means.

Advantageous Effects of Invention

According to the displacement detection device of the present invention, it is possible to easily perform copy selection setting from the master device of the control unit to the slave device.

Description of drawings

FIG. 1 is a diagram schematically illustrating a displacement detection device.

FIG. 2 is a block diagram illustrating the electrical configuration of the displacement detection device.

FIG. 3 is a perspective view illustrating a control unit.

FIG. 4 is a front view illustrating an operation panel of the control unit.

FIG. 5 is a front view illustrating the operation of the display unit.

FIG. 6 is a front view illustrating the operation of the display unit.

FIG. 7 is a front view illustrating the operation of the display unit.

FIG. 8 is a flowchart illustrating the operation of the control unit.

FIG. 9 is an explanatory diagram illustrating the operation of the display unit at the time of the initial setting operation.

FIG. 10 is an explanatory diagram illustrating the operation of the display unit at the time of the initial setting operation.

FIG. 11 is an explanatory diagram illustrating the operation of the display unit at the time of the initial setting operation.

FIG. 12 is an explanatory diagram illustrating the operation of the display unit at the time of the initial setting operation.

FIG. 13 is an explanatory diagram illustrating the operation of the display unit at the time of the initial setting operation.

FIG. 14 is a flowchart illustrating the operation of the control unit at the time of the copy item setting operation.

FIG. 15 is a flowchart illustrating the operation of the control unit at the time of the copy item setting operation.

List of reference marks

1: Sensor head, 2: Holder, 3: Spindle, 6: Control unit, 6a: Master device, 6b: Slave device, 9: Controller (setting unit, CPU), 13, 14, 17: Operation keys ( selection device, copy selection set key, shift key, enter key and preset key), 10: display unit, 24: copy mark, W: measurement target

Detailed ways

Hereinafter, embodiments of the displacement detection device will be described with reference to the accompanying drawings. The displacement detection device shown in FIG. 1 is configured such that the main shaft 3 is retractably supported downward from the holder 2 of the sensor head 1 which is pre-set at a predetermined position with a DIN rail. A contactor 4 is provided at the end of the main shaft 3 .

The sensor head 1 is connected to the control unit 6 via a connecting cable 5 . For example, when the measurement target W is conveyed to the installation position of the sensor head 1 and the contactor 4 abuts on the surface of the target, a detection signal obtained by detecting the displacement amount of the spindle 3 is output from the sensor head 1 to the control unit 6 .

The main controller MC is connected to the control unit 6 . The control unit 6 operates based on a control signal output from the main controller MC, and various types of data measured by the control unit 6 are transmitted to the main controller MC.

As shown in FIG. 2 , a plurality of light projecting elements 7 and a plurality of light receiving elements 8 at positions facing the respective light projecting elements 7 are provided in the holder 2 of the sensor head 1 . The light shielded by the main shaft 3 moving in the up-down direction is detected by the light receiving element 8, so that the displacement amount of the main shaft 3 is converted into an electric signal and output.

The detection signal output from the light receiving element 8 is output to the CPU 9 in the control unit 6 . The display unit 10 is connected to the CPU 9, and performs desired display. The setting unit 11 is connected to the CPU 9, and is configured to perform desired setting operations and selection operations. In the memory 12 connected to the CPU 9, a program for controlling the operation of the CPU 9 and setting values set based on the operation of the setting unit 11 are stored.

As shown in FIG. 3 , the control unit 6 is provided with a display unit 10 in an operation panel formed as a rectangular parallelepiped casing. A shift key 13 , an enter key 14 and an escape key 15 are provided on one side of the display unit 10 , and various types of light lamps 16 and a preset key 17 are provided on the display unit 10 as the setting unit 11 on the other side.

As shown in FIG. 4, the shift key 13 is provided with: an up key 13a for selecting an upward shift; a down key 13b for selecting a downward shift; a right key 13c for selecting a right shift; key 13d to select left shift.

The connector 18 protrudes from the side surface of the control unit 6, and a connector hole is provided to fit the connector 18 in the other side surface. Several control units 6 are overlapped and connected to each other in the thickness direction by the connectors 18 , and the control units 6 are connected to the individual sensor heads 1 by the connection cables 5 .

The control units 6 may be configured such that any one of the control units is set as the master 6a and the other control units 6 are set as the slaves 6b.

As shown in FIG. 4 , the display unit 10 is configured such that the main display unit 19 and the sub-display unit 20 are arranged in the upper and lower stages to light up a plurality of numbers or letters. The first guide mark 21 is provided on one side of the sub display unit 20 , and the second guide mark 22 is provided on the lower side of the first guide mark 21 .

The first guide mark 21 displays four valid shift keys, and the second guide mark 22 lights up when the enter key 14 is valid.

A circular meter 23 is provided on the other side of the main display unit 19 and the sub-display unit 20 . The circular meter 23 displays the measured value based on the lighting of the 13 segments, or the segments are sequentially illuminated when the shift key 13 is long-pressed, thereby displaying the duration of the long hold operation.

The duplication mark 24 is provided on the inner side of the circular meter 23 . The copy mark 24 is a setting item toggled when a copy setting operation is performed, and lights up when copying from the master device 6a to the slave device 6b is selected.

[Operation of the control unit 6 at the time of the setting operation of the sensor head 1]

In the case of adjusting the installation position of the sensor head 1, the up key 13a is first pressed and held for 3 seconds. Then, as shown in FIG. 5, a display setting screen is displayed in the display unit 10, and a mode of selecting an item displayed in the sub-display unit 20 appears. When the up key 13a is pressed and held, the segments of the circular meter 23 are turned off in sequence, and the duration of the long hold operation is displayed.

When the right button 13c or the left button 13d is repeatedly pressed in this state, the items displayed in the sub display unit 20 are sequentially switched as shown in FIG. 6 . Display items include normal measurement value (NORM.V), calculated value (CALC), label (LABEL), low set value (LO.SET), high set value (HI.SET) and sensor head measurement value (HEAD. V).

Here, when the enter key 14 is pressed in a state where the sensor head measurement value (HEAD.V) is displayed in the sub display unit 20, the display value of the sub display unit 20 is determined as the sensor head measurement value (HEAD.V) .

Then, as shown in FIG. 7 , the display unit is set to a mode in which an absolute value indicating whether or not the position of the main shaft 3 is within the movable range is displayed as the main shaft measurement value.

Next, the display unit switches to the installation position adjustment operation of the sensor head 1 . As shown in FIG. 8, when the standard measurement target is placed under the sensor head 1 so that the contactor 4 of the main shaft 3 abuts on the standard measurement target, the measurement operation starts (step 1), and the main shaft measurement value of the main shaft 3 is acquired (step 2).

Next, the displayed value is adjusted to a standard value (step 3), which is obtained by measuring a measurement target to which the measured value displayed in the main display unit 19 is normalized. When the standard measurement target is measured (step 4), the measurement value of the standard measurement target is displayed in the main display unit 19, and the main axis measurement value is displayed in the sub display unit 20 (step 5).

Therefore, the processing from step 1 to step 5 is repeated to adjust the mounting position of the sensor head 1 so that the spindle measurement value falls in the center of the movable range of the spindle 3 . In addition, it is easy to adjust the measurement value to a standard measurement value.

[Setting operation of the control unit 6]

Next, operations in the case of performing various types of initial settings with the control unit 6a as the master device will be described.

As shown in FIG. 9, in the case of performing various types of initial settings, the right button 13c is pressed and held for three seconds or more. Then, the sub display unit 20 displays the BASIC screen 25a as one of the setting menu screens to select the basic setting. In this state, the down key 13b is pressed, and the right key 13c and the left key 13d are operated. Then, any one of the basic setting items 26 of the 12 items belonging to the lower layer of the BASIC screen 25a can be sequentially selected.

Each basic setting item 26 is selected, and the up key 13a, the down key 13b, and the enter key 14 can be used to set a desired setting value for each item.

After all the items belonging to the lower layer of the BASIC screen 25a are set, the display returns to the BASIC screen 25a. When the right key 13c or the left key 13d is operated, the display can be switched to the menu screens 25b to 25h which are in the same layer as the BASIC screen 25a.

Several setting items are linked to the lower layers of the menu screens 25b to 25h, and the setting of the setting items can be performed similarly to the basic setting item 26.

When the basic setting items 26 and the setting items belonging to the lower layers of the menu screens 25b to 25h are set, it is determined whether or not the setting values of the setting items are copied to the control unit 6b serving as a slave.

As shown in FIG. 10, when the preset key 17 is pressed when the setting of the setting item is completed, the copy mark 24 is displayed as shown in FIG. 11, and the setting item is set to be copied from the master device 6a to the slave device 6a. Device 6b. When the preset key 17 is not pressed, the copy mark 24 is not displayed, as shown in FIG. 12 .

As shown in FIG. 13, when the copy setting screen 25d is selected from the menu screens 25b to 25h in the same layer as the BASIC screen 25a, the copy item selection screen 27a, the copy all selection screen 27b, and the copy can be sequentially selected Either one of the screens 27c is executed.

In the copy item selection screen 27a, items to be copied can be individually selected among the items in the lower layers of the BASIC screen 25a and other menu screens 25b to 25h. In this operation, the copy selection operation can be changed with the preset key 17 .

In the copy selection all setting screen 27b, all items of the lower layers of the BASIC screen 25a and the other menu screens 25b to 25h can be set. The item selected in the copy execution screen 27c can be processed.

In the case of the slave device 6b, a copy lock setting screen 28 is displayed in the lower layer of the copy setting screen 25d to deny copying from the master device 6a.

Next, the processing operation of the CPU 9 of the host device 6a at the time of the above-described initial setting operation will be described.

As shown in FIG. 14, when the right button 13c is pressed and held, a BASIC screen 25a and other menu screens 25b to 25h are displayed in the sub display unit 20 (step 11).

Next, any one of the BASIC screen 25a and the other menu screens 25b to 25h is selected, and a setting item is selected (step 12). Then, as shown in FIG. 10, for example, the set value displayed in the main display unit 19 lights up, and the set value can be selected by the operations of the up key 13a, the down key 13b, the right key 13c, and the left key 13d (step 13, 14, 15 and 16).

When the preset key 17 is pressed in step 15, the copy flag 24 is checked (steps 17 and 18). In the case where the preset key 17 is not pressed, the copy flag 24 is not checked (step 19). By repeating such operations, initial setting operations of several items belonging to the lower layers of the BASIC screen 25a and menu screens 25b to 25h are performed, and whether or not to copy the values set in the respective items in the master device 6a to the slave devices is performed 6b selection operation.

When the enter key 14 is pressed in step 15, the set value is determined (step 20), and the initial setting operation ends.

FIG. 15 illustrates the operation in the case where the master device 6a selects the copy setting screen 25d. When the copy setting screen 25d among the menu screens is selected (step 21), the copy item selection screen 27a is displayed (step 22).

Here, when the right key 13a or the left key 13d is pressed, the initial setting values of the items of the lower layer of the menu screen are sequentially displayed in the main display unit 19 and the sub display unit 20 (steps 23 to 25). When the enter key 14 is pressed in a state where the desired item is displayed, copying of the setting value of the item from the master device 6a to the slave device 6b is selected (steps 26 and 27). In the case where the enter key 14 is not pressed in step 26, the copy to the slave device 6b is not selected (step 28).

When the escape key 15 is pressed in step 24, it is determined to input the copy setting (step 29), and the setting operation is ended.

In the displacement detection device, the following effects can be obtained.

(1) In the case of measuring the displacement amount of the standard measurement target to adjust the installation position of the sensor head 1, the measured value of the displacement amount of the measurement target and the absolute value representing the position within the movable range of the main shaft 3 can be used as the main shaft measurement value Meanwhile, it is displayed in the main display unit 19 and the sub-display unit 20 of the control unit 6 . Therefore, the mounting position of the sensor head 1 can be easily adjusted so that the displacement amount of the measurement target can be detected in the central portion of the movable range of the main shaft 3 .

(2) When the initial setting value set for each item by the master device 6a of the control unit 6 is copied to the slave device 6b, it is possible to set in advance whether or not to copy the target item at the time of the initial setting operation of each item. Initial setting value. Therefore, it is not necessary to preselect whether or not to copy each item in the copy item selection screen 27a after setting the initial setting value, so that the copy item setting operation can be easily performed.

(3) At the time of the selection operation of the copied item, the copy mark 24 is displayed on the item selected for copying, so that the presence/absence of the copy selection can be easily recognized.

The embodiment can be modified as follows.

A key for setting a copy item can be designated as an arbitrary key other than the preset key 17 .

The present invention has been described by taking a displacement detection device including a sensor head that detects the displacement of the measurement target by abutting the end of the main shaft against the measurement target and a control unit as an example. However, the present invention can be applied to an optical detection apparatus including a sensor head that detects a measurement target by projecting a detection beam onto the measurement target and a control unit.

The present invention has been exemplified by the configuration in which the initial setting items are copied at the time of initial setting. The present invention can be applied to the case where initial setting items are copied at the time of setting update.

(Note 1)

In the displacement detection device according to claim 1,

The control unit includes:

the first key, which is used to display the display setting screen in the display unit;

The second key, which is used to select the display mode of the spindle measurement value in the display setting screen; and

A control unit that, in the main axis measurement value display mode, causes, in the display unit, the main display unit to display the determination measurement value, and the sub display unit to display the main axis measurement value at the position of the main axis.

(Note 2)

In the displacement detection device according to Note 1,

The main display unit and the sub display unit are arranged in two stages in the up-down direction.

The invention has been described in detail or using specific embodiments. However, it is of course possible for those skilled in the art to make various modifications and changes without departing from the spirit of the present invention.

This application is based on and claims priority from Japanese Patent Application No. 2015-204079 filed on October 15, 2015, and the entire contents of which are incorporated herein by reference.

Claims (5)

1. A displacement detecting device comprising:

a plurality of sensor heads each of which abuts an end of a spindle telescopically supported by a holder on a measurement target, thereby detecting a displacement of the measurement target;

a plurality of control units each including a display unit configured to display a measurement value based on a detection signal of the corresponding sensor head;

an operation key that is provided in each of the control units and that is capable of setting an initial setting value in each of a plurality of initial setting items; and

a controller provided in each of the control units and having a function of copying the initial setting values from a master device of the control unit to a slave device of the control unit based on an operation of the operation key,

wherein a selection means and an execution means are provided in the controller and the operation key, wherein the selection means is configured to select whether or not to copy the initial setting values of the initial setting items each time a setting operation of the initial setting values in each of the initial setting items is performed, and wherein the execution means is configured to execute the copying of the initial setting values of the initial setting items selected as items to be copied by the selection means based on the operation of the operation key.

2. The displacement detecting device according to claim 1,

wherein the selection means comprises:

a copy selection setting key set by the operation key; and

a setting unit provided in the controller and configured to set a copy selection of the initial setting value for each of the initial setting items based on an operation of the copy selection setting key.

3. The displacement detecting device according to claim 2,

wherein, when a copy selection key is operated at each of the initial setting items, a copy flag indicating a setting of a copy selection is set in the display unit disposed in the control unit.

4. The displacement detecting device according to any one of claims 1 to 3,

wherein the initial setting item is changeable after the initial setting, and

wherein the selection means is capable of selecting whether to duplicate the setting value of any setting change item when the setting value is changed.

5. An optical inspection device comprising:

a plurality of sensor heads configured to project detection light beams to a measurement target to detect the measurement target;

a plurality of control units each including a display unit configured to display a measurement value based on a detection signal of the corresponding sensor head;

an operation key that is provided in each of the control units and that is capable of setting an initial setting value in each of a plurality of initial setting items; and

a controller provided in each of the control units and having a function of copying the initial setting values from a master device of the control unit to a slave device of the control unit based on an operation of the operation key,

wherein a selection means and an execution means are provided in the controller and the operation key, wherein the selection means is configured to select whether or not to copy the initial setting values of the initial setting items each time a setting operation of the initial setting values in each of the initial setting items is performed, and wherein the execution means is configured to execute the copying of the initial setting values of the initial setting items selected as items to be copied by the selection means based on the operation of the operation key.

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