JP3280522B2 - Trimmer adjustment method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting method and an apparatus for adjusting a trimmer having an adjusting screw groove with a driver bit.

[0002]

2. Description of the Related Art Conventionally, an adjusting method and an apparatus for adjusting a trimmer having an adjusting screw groove with a driver bit are disclosed in Japanese Patent Laid-Open No. Sho 57-66382. FIG. 8 is a configuration diagram showing the trimmer adjusting device. In this trimmer adjusting device, the arm 34
With the television camera 35 fixed to the XY table 32, the image of the trimmer capacitor 30 mounted on the circuit board 31 illuminated by the illumination device 33 is taken, and the position of the trimmer capacitor 30 and the screw groove 30a of the trimmer capacitor 30 are taken. The position and angle of the driver 36 for adjusting the trimmer capacitor 30 based on the image recognition result are determined by the position of the trimmer capacitor 30 and the thread groove 30.
It is adjusted to match the angle of a. Next, driver 3
6 is lowered to engage the bit 37 of the driver 36 with the thread groove 30a of the trimmer capacitor 30, and the driver 36 is moved to a position where the characteristic value (rate in this case) changed by pressing on the trimmer capacitor 30 changes. Stop temporarily. Then, when the characteristic value does not change while gradually raising the driver 36, the raising of the driver 36 is stopped and the engagement between the bit 37 and the thread groove 30a of the trimmer capacitor 30 is completed. Then, the characteristic value is adjusted to the set target value while rotating the driver 36 at a small angle.

[0003]

However, in the above-described conventional adjusting method, it is assumed that the characteristic value (in this case, the rate) changes due to the pressure applied to the trimmer capacitor 30. There is a problem that a detection unit for individually detecting the characteristic value is required for the circuit board to be performed. Also, bit 37 of driver 36
Cannot be determined until the screwdriver 30 is actually rotated to start the adjustment, so that the time required for the adjustment is increased. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to easily adapt to the characteristic value to be adjusted or the type of circuit board, and to reduce the time required for the adjustment. And an apparatus for adjusting the trimmer.

[0005]

According to a first aspect of the present invention, there is provided a trimmer adjusting method for engaging a bit in a thread groove of a trimmer and adjusting the trimmer by the bit. The position and angle of the thread groove of the trimmer are detected, the center position of the bit above the trimmer is matched with the detection position detected by the image recognition means , and
After shifting the detection angle of the thread groove of the lima and the angle of the bit, lower the bit, detect the height change of the trimmer by detecting the change in the vertical position of the tip of the bit, and then raise the bit once. Angle of the trimmer thread groove detected by the image recognizing means, and lowering the bit from the detected trimmer height position to a position not deeper than a predetermined thread groove depth, thereby removing the bit and trimmer thread groove. And measuring the characteristic value that changes in accordance with the rotation of the trimmer, and turning the trimmer with a bit so that the characteristic value approaches the target value.

According to a second aspect of the present invention, in the first aspect of the present invention, when detecting the height position of the trimmer, the lowering speed after the bit has passed the predetermined position is set to be lower than the lowering speed until the bit passes the predetermined position. It is also characterized by a low speed. According to a third aspect of the present invention, in the second aspect, a pulse motor is used as means for raising and lowering the bit, and the position and speed of the pulse motor are controlled to switch the bit lowering speed during the lowering. I do.

[0007] The invention of claim 4 is the invention of claim 1 or 2 or 3
According to the invention, when the position and the angle of the thread groove of the trimmer are image-recognized by the image recognizing means, the trimmer is illuminated from above and the illumination light is condensed at a position before the trimmer. According to a fifth aspect of the present invention, there is provided an image recognizing means for imaging a screw groove of a trimmer to detect a position and an angle of the screw groove, a horizontal moving means for moving a bit in a horizontal plane, Vertical moving means for moving the vertical direction, bit rotating means for rotating the bit, position detecting means for detecting the vertical position of the bit, measuring means for measuring the change in the characteristic value by the bit, Based on the detection position and angle of the thread groove of the trimmer obtained by the image recognition means, the horizontal movement means, the vertical movement means and the bit rotation means are controlled to adjust the position and angle between the tip of the bit and the thread groove of the trimmer. and control means for rotating the bit engaged with the screw groove of the trimmer controls the bit rotating means so as to approach the target value characteristic values measured by the measuring means performs Control means,
By controlling the horizontal movement means
Position detected by the image recognition means
By controlling the bit rotation means in accordance with the
The detection angle of the thread groove of the trimmer and the angle of the bit are shifted.
Later, the vertical movement means is controlled to lower the bit,
Once the height of the trimmer is detected by the
Raise the bit and control the bit rotation means to
Inspection of the thread groove of the trimmer whose angle has been recognized by the image recognition means
To control the vertical movement means in accordance with the outgoing angle.
From the detected trimmer height position to the specified thread groove depth
Lower the bit to a position no deeper than
It is characterized by engaging with a thread groove of a lima .

[0008]

According to a first aspect of the present invention, in a trimmer adjusting method for engaging a bit in a thread groove of a trimmer and adjusting the trimmer with the bit, the position and angle of the thread groove of the trimmer are detected by image recognition means. Adjust the center position of the bit above the trimmer to the detection position detected by the image recognition means , and further adjust the detection angle of the thread groove of the trimmer and the angle of the bit.
After shifting , the bit is lowered, the height of the trimmer is detected by detecting the change in the vertical position of the tip of the bit, and then the bit is raised once. Match the detected angle of the groove, lower the bit from the detected height of the trimmer to a position that is not deeper than the specified thread groove depth, engage the bit with the thread groove of the trimmer, and respond to the rotation of the trimmer. The trimmer is rotated by the bit so that the characteristic value approaches the target value while measuring the characteristic value that changes, so the bit is inserted into the thread groove of the trimmer before actual adjustment without measuring the characteristic value of the trimmer. Engagement can be reliably performed, and it is possible to easily cope with a characteristic value to be adjusted and a type of a circuit board. Further, it is not necessary to rotate the bit to determine whether the bit has engaged with the thread groove of the trimmer, and the time required for adjustment can be reduced.

In the configuration of the second aspect of the present invention, when detecting the height position of the trimmer, the lowering speed after the bit has passed the predetermined position is lower than the lowering speed until the bit passes the predetermined position. In addition, the time required to detect the height position of the trimmer can be reduced, and as a result, the overall time required for adjustment can be reduced. In the configuration of the third aspect of the present invention, a pulse motor is used as a means for raising and lowering the bit, and the position and speed of the pulse motor are controlled to switch the bit lowering speed during the lowering, so that the bit lowering speed is finely controlled. It is possible to prevent the bit from accidentally colliding with the trimmer.

In the structure of the invention of claim 4, when the position and angle of the thread groove of the trimmer are image-recognized by the image recognizing means, the trimmer is illuminated from above and the illumination light is condensed at a position in front of the trimmer. Therefore, when adjusting the trimmer inside the casing from the adjustment hole provided in the casing or the like in which the trimmer is installed, even when the visibility of the thread groove of the trimmer from the adjustment hole is poor, the trimmer is illuminated. By condensing the illumination light above the trimmer, the amount of light passing through the adjustment hole can be increased, and the screw groove of the trimmer can be illuminated with sufficient brightness to prevent erroneous recognition by the image recognition means.

According to a fifth aspect of the present invention, there is provided an image recognizing means for picking up an image of a thread groove of a trimmer to detect a position and an angle of the thread groove, a horizontal moving means for moving a bit in a horizontal plane, and a vertically moving bit. Vertically moving means for moving the bit, bit rotating means for rotating the bit, position detecting means for detecting the vertical position of the bit, measuring means for measuring a change in the characteristic value due to the bit, and image recognizing means Based on the detection position and detection angle of the thread groove of the trimmer obtained by the above, the horizontal movement means, the vertical movement means and the bit rotation means are controlled to adjust the position and angle between the tip of the bit and the thread groove of the trimmer. and control means for rotating the bit engaged with the screw groove of the trimmer controls the bit rotating means so as to approach the characteristic value measured by the measuring means to the target value, the control Stage, to control the horizontal movement means
Identifies the center of the bit above the trimmer
More bits by adjusting to the detection position detected by the
Detecting angle of thread groove of trimmer by controlling moving means
Control the vertical moving means after shifting the angle of the bit and the bit
And lower the bit.
After detecting the position, raise the bit once and
The angle of the bit is recognized by the image recognition
Vertical direction by matching the detected angle of the thread groove of the trimmer
By controlling the moving means, the height of the detected trimmer
From the position to a position not deeper than the specified thread groove depth.
The bit is lowered to engage the bit and the thread groove of the trimmer.Therefore, the bit is securely inserted into the thread groove of the trimmer before the actual adjustment by the position detecting means without measuring the characteristic value of the trimmer. It can be engaged and can easily correspond to the characteristic value to be adjusted and the type of the circuit board. Further, there is no need to rotate the bit to determine whether the bit has engaged with the thread groove of the trimmer, and the time required for adjustment can be reduced.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. Note that the trimmer in the following description is a general term for circuit components such as coils, capacitors, and variable resistors (volumes), which have screw grooves for adjustment. FIG. 1 is a schematic block diagram of a trimmer adjusting device according to the present embodiment, and FIG. 2 is a diagram showing an entire configuration. This trimmer adjusting device has an X-
Y table 11 and C for imaging thread groove 1a of trimmer 1
A CD camera 12 and this CCD camera 12
Camera vertical drive 1 for moving vertically along 0
3, a ring-shaped illuminating device 14 arranged close to the periphery of the lens of the CCD camera 12 to illuminate the thread groove 1a of the trimmer 1, and a bit 15 at the lower end, which is vertically movably mounted on a stand 20. A driver 16 for moving the driver 16 up and down along the stand 20, and a bit 15 disposed at the upper end of the driver 16.
A bit rotation device 18 having a pulse motor PM for rotating the bit 15, a position detection sensor 19 for detecting the vertical position of the bit 15, and a trimmer 1 indirectly by measuring a voltage between an adjustment measurement land 3 described later. A measuring device 21 for measuring the characteristic values (capacitance, resistance value, etc.) of the device, and a control device 22 for controlling the entire device.

An image recognition unit 22 for recognizing the position and angle of the thread groove 1a of the trimmer 1 based on the image of the trimmer 1 captured by the CCD camera 12
a, the vertical drive device 17, the bit rotation device 18, the position detection sensor 19, and the measurement device 2 based on the information of the position and the angle of the screw groove 1a obtained by the image recognition unit 22a.
XY table 11, CCD camera 12, camera vertical drive 1
3 and a control unit 22 b for controlling the lighting device 14.

As shown in FIG. 2, each device except for the control device 22 is attached to a stand 20 mounted on an XY table 11, and each device is controlled by the XY table 11 to a stand 20. It can be moved in a horizontal plane integrally with it. The lighting device 14 is, as shown in FIG.
A ring-shaped illuminating unit 14a provided near the lower end of the D camera 12 and illuminating the lower side, a light source unit 14b in which a halogen lamp La is housed, and an illumination unit 14a and a light source unit 14b are provided in communication with each other. A plurality of optical fibers 14c provided, light from a halogen lamp La is incident from one end of the optical fiber 14c, and light is emitted from the other end of the optical fiber 14c exposed on the lower surface of the illumination unit 14a to perform illumination. Is what you do. Here, the optical axis of each optical fiber 14c is inclined at about 15 ° with respect to the vertical direction.

An up-down driving device 17 for moving the driver 16 up and down along the stand 20 is provided with a ball screw 17a disposed in parallel with the stand 20 along the vertical direction, and attached to the upper end of the ball screw 17a. This ball screw 17
a pulse motor 17b for rotating the motor a, and a driving unit 17c fixed to the driver 16 and inserted into the ball screw 17a. The ball screw 17a is rotated by driving the pulse motor 17b, and the The drive unit 17c moves up and down along the ball screw 17a.

The driver 16 has a bit rotating device 1 at its upper end.
The pulse motor PM of No. 8 is attached, and a bit 15 is attached to the lower end via a spring 16a. That is, the driver 16 can be rotated by the pulse motor PM, and the bit 15
Also rotate together.

On the body 15a of the bit 15, a circular outer flange-like detection plate 15b is formed. This detection plate 15b is
This is for detecting a change in the distance between the position detection sensor 19 and the detection plate 15b by the position detection sensor 19 attached to the lower end of the driver 16. Although the position detection sensor 19 uses a well-known displacement sensor, the present invention is not limited to this.
Configuration 9 is not the gist of the present invention.

A probe 21a of a measuring device 21 is attached to the driver 16 in parallel with the bit 15, so that the probe 16 can be moved up and down integrally with the driver 16. When the driver 16 is lowered to engage the bit 15 with the thread groove 1a of the trimmer 1, the probe 2
The tip of 1a is brought into contact with an adjustment measurement land 3 to be described later,
The characteristic value of the trimmer 1 can be measured via the probe 21a.

Next, a description will be given of a trimmer adjusting method using the trimmer adjusting apparatus of the present embodiment. In the following description, the trimmer 1 to be adjusted is a variable resistor, which is mounted on the board 2 as shown in FIG. Further, the above-described adjustment measurement land 3 is provided near the trimmer 1 on the substrate 2.
Then, the trimmer 1 is adjusted in the work W in a finished product state in which the cover 5 is assembled. The shield plate 4 and the cover 5 above the work W are provided with adjustment holes 6 so that the trimmer 1 and the measurement lands 3 for adjustment face the outside. As shown in FIG. The bit 15 is engaged with the thread groove 1a of the trimmer 1 through the adjustment hole 6, and the tip of the probe 21a is brought into contact with the measurement land 3 for adjustment.

First, the work W is fixed to a jig (not shown) (step 1 in FIG. 6), and the control device 22 controls the XY table 11 to move the CCD camera 12 to the adjustment hole 6 of the work W.
(Step 2 in FIG. 6). Then, the camera up / down driving device 13 is controlled by the control device 22, and C
The CD camera 12 is lowered to focus on the trimmer 1 and illuminated by the illumination device 14 to image the thread groove 1a of the trimmer 1 (step 3 in FIG. 6).

An image of the thread groove 1a of the trimmer 1 captured by the CCD camera 11 is stored in an image recognition unit 2 of the control device 22.
2a. The image recognition unit 22a, the image of the screw groove 1a of the trimmer 1 obtained from the CCD camera 11 as shown in FIG. 7, calculates the coordinates of P ₁ to P ₄ in terms of the outermost edge portion of the thread groove 1a , and a straight line connecting the point P ₁ and point P _2, it seeking the coordinates of the intersection of the straight line connecting the point P ₃ and the point P ₄ to the center position O of the screw groove 1a. Further, angles formed by a straight line connecting the point P ₁ and the point P ₃ and a straight line connecting the point P ₂ and the point P ₄ to the reference line M passing through the center position O are θ ₁ and θ ₂ , respectively. The average of these values is defined as the groove angle θ ₀ of the thread groove 1a viewed from the reference line M. The detection data of the center position O and the groove angle θ ₀ of the thread groove 1a of the trimmer 1 obtained by the image recognition unit 22a is sent to the control unit 22b.

In the image recognition unit 22a, the thread groove 1 of the trimmer 1
When the recognition of the center position O and the groove angle θ ₀ is completed, the control device 22 controls the camera vertical drive device 13 to
The camera 12 is moved upward. Subsequently, the XY table 11 is controlled on the basis of the detection data, and the bit is set so that the center position of the bit 15 substantially matches the center position O of the thread groove 1a of the trimmer 1 as shown in FIG. 15 is moved directly above the trimmer 1 (step 4 in FIG. 6).

Next, the bit 15 and the thread groove 1a of the trimmer 1
The controller 15 controls the vertical drive device 17 to lower the bit 15 while the groove angle θ ₀ is shifted.
Here, the control device 22 drives the pulse motor 17b by giving a control pulse to the pulse motor 17b of the vertical drive device 17, and also controls the pulse motor 17b.
The vertical position of the bit 15 that moves up and down in conjunction with the driving of the pulse motor b can always be detected from the rotational position of the pulse motor 17b. In this embodiment, the pulse motor 17b of the vertical drive unit 17 is controlled until the bit 15 reaches a position of about 10 mm from the upper surface of the trimmer 1.
5 is rapidly lowered (step 5 in FIG. 6), and bit 15
Reaches the above-mentioned position (position about 10 mm from the upper surface of the trimmer 1), the lowering speed of the bit 15 is reduced to lower the bit by a small amount until the tip of the bit 15 contacts the upper surface of the trimmer 1. (Step 6 in FIG. 6).
When the tip of the bit 15 comes into contact with the trimmer 1, the bit 15 supported by the spring 16a moves slightly upward, and the distance between the detection plate 15b of the bit 15 and the position detection sensor 19 changes by a small amount. Therefore, as shown in FIG. 5C, the change in the minute amount is detected by the position detection sensor 19, and the control device 22 operates the vertical drive device 1
7 to stop the lowering of the bit 15 (step 7 in FIG. 6). Here, since the bit 15 is moved up and down by the pulse motor 17b, the position detection sensor 19
The height position of the trimmer 1 can be detected by the control unit 22b of the control device 22 based on the rotation position of the pulse motor 17b at the time point detected by.

Then, the bit 15 is once raised slightly by about several mm, and the bit rotating device 18 is controlled by the control device 22 based on the detected data of the groove angle θ ₀ , and FIG.
As shown in (d), the bit 15 is screwed into the thread groove 1 of the trimmer 1.
The groove angle θ is set to coincide with the groove angle θ ₀ (step 8 in FIG. 6). Then, based on the height position of the bit 15 obtained earlier,
The control device 22 controls the vertical drive device 17 again, and the position at which the bit 15 has previously stopped descending (the height position of the bit 15)
Then, the bit 15 is lowered by an amount slightly smaller than the depth dimension of the thread groove 1a of the trimmer 1 which has been clarified in advance, and the bit 15 is moved to the thread groove 1a of the trimmer 1 as shown in FIG. (Step 9 in FIG. 6). At this time, a plurality of probes 21 a attached to the driver 16 abut on the plurality of measurement lands 3 for adjustment provided on the substrate 2. Then, the voltage generated between the measurement lands for adjustment 3 is measured by the probe 21a. If the position detection sensor 19 does not detect a change in the distance between the bit 15 and the detection plate 15b when the bit 15 is engaged with the thread groove 1a, the bit 15 is correctly engaged with the thread groove 1a. Become.

Then, the bit 15 is rotated while the voltage between the measurement lands for adjustment 3 is measured by the measurement device 21 via the probe 21a, and the voltage between the measurement lands for adjustment 3 approaches the set target value. The bit rotation device 18 is thus controlled by the control device 22 (Step 10 in FIG. 6). When the adjustment is completed, the bit 15 is raised and returned to the home position to end the adjustment operation (step 1 in FIG. 6).
1).

In the above configuration and method, bit 1
Since the height position of the bit 1 is detected before the bit 5 is engaged with the thread groove 1a of the trimmer 1, when the bit 15 is actually engaged with the thread groove 1a, the height position is detected from the detected height position in advance. If the bit 15 is lowered by an extra amount slightly smaller than the depth dimension of the thread groove 1a which is known, when the trimmer 1 is engaged with the bit 15 as in the conventional example, It is not necessary to measure the characteristic value, and the bit 15 can be securely engaged with the thread groove 1a of the trimmer 1 before the actual adjustment. Therefore, it is possible to easily cope with the characteristic value to be adjusted and the type of the circuit board.
Further, there is no need to rotate the bit 15 to determine whether the bit 15 has engaged with the thread groove 1a of the trimmer 1, and the time required for adjustment can be reduced.

By the way, as shown in FIG. 3, even when the distance between the adjustment hole 6 provided in the cover 5 of the work W and the trimmer 1 is slightly large and the inside diameter of the adjustment hole 6 is relatively small, the present invention is not limited to this. In the embodiment, the light emitted from the tip of the optical fiber 14c is condensed on the outside of the adjusting hole 6 in front of the trimmer 1 by tilting the optical axis of the optical fiber 14c by 15 ° with respect to the vertical direction. And as a result,
By increasing the diameter of light reaching the inside of the adjustment hole 6 and hitting the trimmer 1, the entire upper surface of the trimmer 1 can be illuminated. Therefore, in various situations, the trimmer 1 can be sufficiently illuminated, and image recognition of the thread groove 1a of the trimmer 1 can be reliably performed. Note that FIG. 3 shows the dimensions and distance relationship of each part by numerical values, but these are shown as examples, and the present invention is not limited to these numerical values.

[0028]

According to a first aspect of the present invention, there is provided a trimmer adjusting method for engaging a bit in a thread groove of a trimmer and adjusting the trimmer by the bit, wherein a position and an angle of the thread groove of the trimmer are detected by image recognition means. Adjust the center position of the bit above the trimmer to the detection position detected by the image recognition means , and further adjust the detection angle of the thread groove of the trimmer and the angle of the bit.
After shifting , the bit is lowered, the height of the trimmer is detected by detecting the change in the vertical position of the tip of the bit, and then the bit is raised once. Match the detected angle of the groove, lower the bit from the detected height of the trimmer to a position that is not deeper than the specified thread groove depth, engage the bit with the thread groove of the trimmer, and respond to the rotation of the trimmer. The trimmer is rotated by the bit so that the characteristic value approaches the target value while measuring the characteristic value that changes, so the bit is inserted into the thread groove of the trimmer before actual adjustment without measuring the characteristic value of the trimmer. There is an effect that the engagement can be surely performed, and it is possible to easily cope with the characteristic value to be adjusted and the type of the circuit board. Further, there is no need to rotate the bit to determine whether or not the bit has engaged with the thread groove of the trimmer, and the time required for adjustment can be reduced.

According to the second aspect of the present invention, when detecting the height position of the trimmer, the lowering speed of the bit after passing the predetermined position is lower than the lowering speed until the bit passes the predetermined position. There is an effect that the time required to detect the height position of the image can be reduced, and as a result, the entire time required for the adjustment can be reduced. The invention according to claim 3 uses a pulse motor as a means for raising and lowering the bit, and controls the position and speed of the pulse motor to switch the bit lowering speed during the lowering. Thus, there is an effect that it is possible to prevent a bit from accidentally colliding with the trimmer.

According to the fourth aspect of the present invention, when the position and angle of the thread groove of the trimmer are image-recognized by the image recognition means, the trimmer is illuminated from above and the illumination light is condensed at a position just before the trimmer. When adjusting the trimmer inside the casing from the adjustment hole provided in the casing or the like in which the trimmer is installed, the illumination light that illuminates the trimmer even when the thread groove of the trimmer from the adjustment hole is in poor visibility. By collecting light above the trimmer, the amount of light passing through the adjustment hole can be increased, and the screw groove of the trimmer can be illuminated with sufficient brightness to prevent erroneous recognition of the image recognition means. is there.

According to a fifth aspect of the present invention, there is provided an image recognizing means for detecting the position and angle of a screw groove by imaging a screw groove of a trimmer.
Horizontal moving means for moving the bit in a horizontal plane;
Vertical moving means for vertically moving the bit, bit rotating means for rotating the bit, position detecting means for detecting the vertical position of the bit, and measuring means for measuring a change in the characteristic value due to the bit. , Based on the detection position and detection angle of the thread groove of the trimmer obtained by the image recognition means,
The horizontal movement means, the vertical movement means, and the bit rotation means are controlled to adjust the position and angle between the tip of the bit and the thread groove of the trimmer, and the bit is set so that the characteristic value measured by the measurement means approaches the target value. Control means for controlling the rotation means to rotate the bit engaged with the thread groove of the trimmer , and the control means controls the horizontal movement means to control the rotation .
The center position of the bit above Lima is used as image recognition means.
The bit rotation means
By controlling the trimmer thread groove detection angle and bit
After shifting the angle of the
The trimmer, and use the position detection means to adjust the height of the trimmer.
Once detected, raise the bit once, and turn the bit rotation
Control to recognize the bit angle by the image recognition means.
Vertical movement means by matching the detection angle of the lima thread groove
By controlling the trimmer height from the detected height of the trimmer.
Lower the bit to a position not deeper than the specified thread groove depth
Then, the bit and the thread groove of the trimmer are engaged, so that the height of the trimmer is detected by the position detecting means before the actual adjustment, so that the trimmer can be adjusted before the actual adjustment without measuring the characteristic value of the trimmer. The bit can be securely engaged with the thread groove of, and it can easily correspond to the characteristic value to be adjusted and the type of the circuit board. In addition, whether the bit is engaged with the thread groove of the trimmer There is an effect that it is not necessary to rotate the bit in order to determine whether or not the trimmer adjustment device can be realized, and the time required for adjustment can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing an embodiment.

FIG. 2 is a plan sectional view showing the same.

FIG. 3 is a plan sectional view showing a main part of the above.

FIG. 4 is a plan sectional view showing a work to be adjusted in the same.

FIGS. 5 (a) to 5 (e) are diagrams for explaining the above operation.

FIG. 6 is a flowchart for explaining the above operation.

FIG. 7 is an explanatory diagram for explaining the operation of the above.

FIG. 8 is a plan sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Trimmer 1a Screw groove 11 XY table 12 CCD camera 13 Camera vertical drive device 14 Illumination device 15 bit 16 Driver 17 Vertical drive device 18 Bit rotating device 19 Position detection sensor 21 Measurement device 22 Control device 22a Image recognition unit 22b Control Department

Continuation of the front page (56) References JP-A-57-66382 (JP, A) JP-A-62-4575 (JP, A) JP-A-3-78294 (JP, A) JP-A-2-303740 (JP) JP-A-62-202600 (JP, A) JP-A-61-188094 (JP, A) JP-A-3-19641 (JP, U) JP-A-63-70829 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B23P 19/06

Claims (5)

(57) [Claims] In a trimmer adjusting method for engaging a bit in a thread groove of a trimmer and adjusting the trimmer by the bit, a position and an angle of the thread groove of the trimmer are detected by image recognition means, and the center of the bit is located above the trimmer. Adjust the position to the detection position detected by the image recognition means , and
After shifting the detection angle of the groove and the angle of the bit, lower the bit, detect the change in the vertical position of the tip of the bit, detect the height position of the trimmer, then raise the bit once, Is matched with the detection angle of the thread groove of the trimmer recognized by the image recognition means, and the bit is lowered from the height position of the detected trimmer to a position not deeper than a predetermined thread groove depth, thereby forming the bit and the thread groove of the trimmer. A trimmer adjusting method, wherein the trimmer is rotated by a bit so as to make the characteristic value approach a target value while measuring a characteristic value that changes according to the rotation of the trimmer. 2. The method according to claim 1, wherein, when detecting the height position of the trimmer, the lowering speed after the bit has passed the predetermined position is lower than the lowering speed until the bit has passed the predetermined position. The described trimmer adjustment method. 3. A trimmer adjusting method according to claim 2, wherein a pulse motor is used as means for raising and lowering the bit, and the position and speed of the pulse motor are controlled to switch the bit lowering speed during the lowering. . 4. When the position and angle of the thread groove of the trimmer are image-recognized by the image recognizing means, the trimmer is illuminated from above and the illumination light is condensed at a position in front of the trimmer. 4. The method for adjusting a trimmer according to 1 or 2 or 3 . 5. An image recognizing means for imaging a thread groove of a trimmer to detect a position and an angle of the thread groove, a horizontal moving means for moving a bit in a horizontal plane, and a vertical moving means for moving a bit in a vertical direction. Bit rotating means for rotating the bit, position detecting means for detecting the vertical position of the bit, measuring means for measuring a change in the characteristic value due to the bit, and a thread groove of the trimmer obtained by the image recognizing means. Based on the detected position and detected angle, the horizontal movement means, the vertical movement means, and the bit rotation means are controlled to adjust the position and angle between the tip of the bit and the thread groove of the trimmer, and to measure by the measurement means. Control means for controlling the bit turning means so as to bring the value closer to the target value and turning the bit engaged with the thread groove of the trimmer , and the control means comprises:
By controlling the horizontal movement means
Position detected by the image recognition means
By controlling the bit rotation means in accordance with the
The detection angle of the thread groove of the trimmer and the angle of the bit are shifted.
Later, the vertical movement means is controlled to lower the bit,
Once the height of the trimmer is detected by the
Raise the bit and control the bit rotation means to
Inspection of the thread groove of the trimmer whose angle has been recognized by the image recognition means
To control the vertical movement means in accordance with the outgoing angle.
From the detected trimmer height position to the specified thread groove depth
Lower the bit to a position no deeper than
A trimmer adjusting device for engaging a thread groove of a lima .