JPH102840A - Work inspecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To judge that a work is defective by compressing a compression spring when the rotating resistance of the work is increased, and detecting that the distance between the spring fixed part and the tip part of a rotating arm is a regulated value or less within a fixed rotating angle of a rotating table. SOLUTION: When a swing arm 10 is not rotated, or slightly rotated, a swivel arm 63 is hardly rotated, and a rotating table 61 continues to rotate to advance a spring fixed part 64, the distance with the arm 63 is shortened to compress a compression spring 65, and the detected pressure of a pressure sensor 64a is increased. A control judging unit 101 stops the rotation of the table 61 when first and second proximity sensors 81, 82 detect first and second wall parts 62a, 62b, respectively, and the output of the sensor 64a exceeds a regulated value, and displays 'abnormal bearing rotating resistance' and 'defective coil mounting height' to a CRT 102, respectively. When the output of the sensor 64a does not exceed the regulated value, and the output of the sensor 82 is OFF, the rotation of the table 61 is stopped, and 'normal swing arm' is displayed on the CRT 102.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work inspecting apparatus for judging the quality of a swing arm for a magnetic head, which is one of components constituting a small hard disk drive (hereinafter referred to as ".mu.HDD").

[0002]

2. Description of the Related Art FIGS. 7A and 7B are views showing a general swing arm 10 incorporated in a .mu.HDD as an example of a work having a rotary bearing. FIG. 8 shows that the swing arm 10 includes a coil 15 and a magnetic head 16.
It is a top view which shows the state which attached.

[0003] As shown in these figures, the swing arm 1
Reference numeral 0 denotes an arm body 11 and a rotary bearing 12 provided at the center of the arm body 11 and attached to the μHDD body.
A coil mounting portion 13 provided at one end of the arm body 11 for mounting the coil 15; and a magnetic head 16 provided at the other end of the arm body 11 for reading and writing to a magnetic disk
And a magnetic head support 14 for supporting the magnetic head.

[0004] Such a swing arm 10 is connected to a μHDD.
It is necessary to inspect whether the dimensions and functions of each part are formed as designed in order to perform a normal operation within the device. By the way, examples of the failure of the swing arm 10 include the following. That is, the rotary bearing 12
This is a defect in itself or a mounting failure when the rotary bearing 12 is mounted on the arm body 11. For this reason, in order to rotate the swing arm 10, a torque larger than a specified value may be required, or the swing arm 10 may not rotate.

[0005] Also, due to a poor mounting when the coil 15 is mounted on the coil mounting portion 13, the coil 15 is attached to a magnet portion (not shown) of a motor which is disposed on the μHDD side and mounted so as to sandwich the coil 15 up and down. May be caught and the swing arm 10 cannot rotate.

Conventionally, these defects have been inspected manually. That is, the abnormal rotation of the rotary bearing 12 is determined based on the sense of the hand received when the operator rotates the swing arm 10. On the other hand, coil 1
The mounting failure of 5 includes a GO gauge that can pass only when the coil 15 of the swing arm 10 is mounted within an allowable error range after the swing arm 10 is set on an inspection rotary bearing of an inspection device (not shown), Conversely, NOGO that cannot pass only when mounted within the tolerance
The inspection was performed using a gauge.

[0007]

However, the above-described conventional judgment of the swing arm by a worker has the following problems. That is, since the rotational resistance of the rotary bearing 12 depends on the sense of the operator, there is a variation in the determination criteria. In addition, the coil mounting portion 13 may be a GO gauge or a NOG
When trying to pass through the O-gauge, the posture of the arm body 11 changes depending on the position of the hand of the operator, the strength of the rotation, and the like. There was a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a work inspecting apparatus which can easily and properly judge the rotational resistance and the shape of a rotary bearing of a work having the rotary bearing without any variation.

[0009]

Means for Solving the Problems In order to solve the above problems and achieve the object, the invention described in claim 1 is formed in a predetermined shape, and a rotary bearing is provided at the center of rotation. In a work inspection device that inspects a work,
A work shaft support that fixes the inner ring of the rotary bearing of the work and rotatably supports the outer ring, and a rotation drive unit that rotates the work supported by the work support by pressing the work in a predetermined direction. The rotation drive unit is arranged coaxially with the work shaft support and rotates in the predetermined direction, a rotation angle detection unit that detects a rotation angle of the rotation table, a spring fixing unit and the rotation arm. A distance detector that detects that the distance to the tip is less than or equal to a specified value, and the distance detector until the rotation angle of the turntable detected by the rotation angle detector reaches a predetermined angle. A pass / fail determination unit having a determination unit that determines that the work is defective based on the distance being equal to or less than the specified value, a spring fixing unit provided on the rotary table,
A base end thereof is coaxially and rotatably disposed with the rotary table, and a distal end thereof is disposed on the predetermined direction side of the spring fixing portion and engages with the work supported by the work shaft support. And a compression spring provided between the spring fixing portion and the distal end of the rotation arm.

According to a second aspect of the present invention, in the first aspect, the distance detecting section includes a pressure sensor for measuring a force received by the spring fixing section from the compression spring. .

According to a third aspect of the present invention, in the first aspect of the invention, the distance detecting section detects the distal end of the turning arm based on the distance being equal to or greater than a specified value. And a proximity sensor to be provided.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the rotation angle detection section includes a wall provided in a predetermined angle range around a periphery of the rotary table;
A proximity sensor disposed at a position facing the wall based on the rotation angle of the rotary table reaching the predetermined angle.

According to a fifth aspect of the present invention, in the first aspect of the present invention, when the work is not formed in a predetermined shape, the work is engaged with a part of the coil so that the work can be prevented. A gauge for restricting rotation in a predetermined direction is provided.

According to a sixth aspect of the present invention, there is provided a work inspecting apparatus for inspecting a work which is formed in a predetermined shape and provided with a rotating bearing at the center of rotation thereof, wherein an inner ring of the rotating bearing of the work is provided. A work shaft support that is fixed and rotatably supports the outer ring, a rotation drive unit that presses the work supported by the work support in a predetermined direction to rotate the work, and the rotation drive unit includes the work shaft. A rotary table that is arranged coaxially with the support and rotates in the predetermined direction;
A rotation angle detector for detecting the rotation angle of the turntable;
A pressure detector for detecting a pressure applied to the swing arm;
A good or bad judgment unit having a judgment unit for judging that the work is defective based on the pressure applied to the turning arm being equal to or more than a predetermined value by the pressure detection unit, and a base end thereof is fixed on the rotary table. And a pivot arm having a tip end engaged with the work supported by the work support.

As a result of taking the above measures, the following operation occurs. That is, according to the first aspect of the present invention, the inner ring of the rotary bearing of the work is fixed, and the work supporting portion rotatably supports the outer ring, and the work supported by the work supporting portion is pressed in a predetermined direction. And a rotation drive unit that rotates. In this rotary drive unit, the rotary drive unit drives the distal end of the turning arm in a predetermined direction via a spring fixing unit and a compression spring as the rotary table rotates in a predetermined direction.

On the other hand, if the rotational resistance of the work increases due to a malfunction of the rotary bearing or the like, the compression spring is compressed and the spring is fixed by the distance detecting unit until the rotation angle of the rotary table reaches a predetermined angle. The distance detecting section detects that the distance between the section and the tip of the turning arm has become equal to or less than a specified value, and the determining section can determine that the workpiece is defective.

According to the second aspect of the present invention, the distance detecting section measures a force received by the spring fixing section from the compression spring by the pressure sensor, and when the force exceeds a predetermined value, the distance detecting section pivots with the spring fixing section. It can be detected that the distance from the tip of the arm is equal to or less than a specified value.

According to the third aspect of the present invention, the distance detecting section detects the distal end by the proximity sensor when the distance between the spring fixing section and the distal end of the revolving arm is equal to or greater than a specified value. It is possible to detect that the distance between the spring fixing portion and the tip of the turning arm has become equal to or less than a specified value.

According to the fourth aspect of the present invention, the rotation angle detecting section is provided on the wall provided in a predetermined angle range around the periphery of the turntable when the proximity sensor has reached a predetermined angle. Since they are arranged at opposing positions, it is possible to detect when the rotation angle of the turntable has reached a predetermined angle.

According to the fifth aspect of the present invention, when the work is not formed in a predetermined shape, the work is engaged with a part of the work to provide a gauge for regulating the rotation of the work in a predetermined direction. The rotation resistance of the work can be increased.

According to the sixth aspect of the present invention, the inner ring of the rotary bearing of the work is fixed, and the work shaft supporting portion rotatably supports the outer ring, and the work supported by the work shaft support is pressed in a predetermined direction. And a rotation drive unit for driving the rotation. The rotation drive unit drives the tip of the turning arm in a predetermined direction as the rotary table rotates in a predetermined direction. On the other hand, in the pass / fail determination unit, if the work does not rotate due to a malfunction of the rotary bearing or the like, the pressure detection unit detects by the pressure detection unit that the pressure applied to the turning arm has exceeded a predetermined value. It can be determined to be defective.

[0022]

FIG. 1 is a perspective view showing a swing arm inspection apparatus 20 according to one embodiment of the present invention. 2 is a perspective view showing a main part of the swing arm inspection device 20, FIG. 3 is a plan view of the main part, and FIGS. 4 (a) and (b) are explanatory views showing the principle of operation. In these drawings, the same functional portions as those in FIGS. 7 and 8 are denoted by the same reference numerals.

As shown in FIG. 1, the swing arm inspection device 20 includes an inspection unit 30 and a control unit 100. The inspection unit 30 includes a base plate 31 arranged horizontally. On this base plate 31, a swing arm support 40 (work support) supporting the swing arm 10 (work) to be inspected, and the swing arm 10 supported by the swing arm support 40 are rotationally driven. And a rotation drive unit 50.

The swing arm pivot 40 is connected to the base plate 3.
1. A gauge base 41 arranged on the base 1 so as to have a space so that a rotary table 61 described later can be freely rotated with a sufficient margin, and for inspecting a mounting height of the coil 15 provided on the gauge base 41. Of the rotary bearing 12 and a clamper 44 for fixing the inner ring 12a of the rotary bearing 12.

Incidentally, as shown in FIG.
Is formed so as to be flush with the reference surface of the rotary bearing 12 of the swing arm 10.
The GO gauge 43 has a gap 43a through which the swing arm 10 can pass by its rotation. This gap 4
The interval 3a, that is, the distance Hmax from the lower surface of the GO gauge 43 to the reference surface of the gauge base 41 is the same as the allowable maximum value of the length h from the lower surface of the swing arm 10 to the upper surface of the coil. Note that the GO gauge 43 can be replaced with one having a reference gap that is appropriately changed depending on the type of the swing arm 10.

The clamper 44 includes a block 44a provided on the base plate 31 and a linear guide 44b provided on the block 44a and supporting a slider 44c, which will be described later, in a reciprocating manner in the direction of arrow Z in FIG. A slider 44c reciprocally attached to the linear guide 44b; a cylinder 44d for reciprocating the slider 44c at a predetermined timing;
c, an arm 44e having a tip disposed above the rotary bearing 12 and a pin 44f attached to the tip of the arm 44e and fitted to the inner ring 12a of the rotary bearing 12. The pin 44f can be fitted to the inner ring 12a of the rotary bearing 12 and clamped by lowering the slider 45 along the arrow Z direction in FIG.

The rotary drive unit 50 includes a rotary table unit 60
And a drive unit 7 for driving a rotary table 61 to be described later.
0 and sensor sections 81 and 82 for detecting the rotation angle of the turntable 61. Rotary table section 60
Has a rotary table 61 arranged on the base plate 31 so as to have a vertical rotation axis. The turntable 61 is provided with a pulley 61a. As shown in FIG. 2, a first wall portion 62a is provided on the periphery of the turntable 61.
Is formed above the first wall portion 62a.
2b is formed.

A turning arm 63 is mounted on the upper surface of the turntable 61 as shown in FIG. The turning arm 63 includes a base end 63a coaxially and rotatably attached to the turntable 61, and an arm 63b extending from the base end 63a in the radial direction of the turntable 61.
And a tip 6 formed on the other end of the arm 63b.
3c, and an engaging pin 63d extending upward from the distal end portion 63c in FIG.

A spring fixing portion 64 is provided on the upper surface of the rotary table 61, and the distal end portion 6 of the turning arm 63 described above is provided.
The compression spring 65 is disposed between the compression spring 65 and the compression spring 3c. The spring fixing portion 64 is provided with a pressure sensor 64a.

A driving unit 70 includes a rotation motor 71 fixed to the base plate 31 and having a rotation axis in the direction of arrow Z in FIG. 1, and a pulley 72 attached to the tip of the rotation motor 71.
And an endless belt 73 stretched between the pulley 72 and the above-described pulley 61a.

The sensor portions 81 and 82 are arranged at the same height position as the above-mentioned first wall portion 62a, and are attached to the first proximity sensor 81 mounted at a predetermined height position on the base plate 31 and the above-mentioned first proximity sensor 81. A second proximity sensor 82 is provided at the same height as the second wall 62b. The first
The proximity sensor 81 and the second proximity sensor 82
It has a function of sending a detection signal to the control unit 100 when the wall portion 62a and the second wall portion 62b are at positions facing each other.

The control section 100 is constituted by a sequencer or the like, and operates the above-described inspection section 30 in cooperation with each other in accordance with timing described later, and based on signals from the first proximity sensor 81, the second proximity sensor 82 and the pressure sensor 64a. A control / judgment unit 101 (judgment unit) for judging pass / fail of the swing arm 10;
1, the operating state of the inspection unit 30 and the swing arm 10
And a CRT 102 for displaying the result of the pass / fail judgment of the CRT.

In the swing arm inspection apparatus 20 configured as described above, the swing arm 10 is inspected according to the procedure shown in the flowchart of FIG. That is, the rotary table 61 is previously positioned at the rotation position as shown in FIG. 3, the operator attaches the swing arm 10 to a predetermined position on the base plate 31, and engages the arm main body 10 with the turning arm 63. And the cylinder 4 of the clamper 44
By operating 4d, the pin 44f clamps the rotary bearing 12 of the swing arm 10 (ST1). In this state, the arm body 10 of the swing arm 10 becomes rotatable about the rotary bearing 12.

Next, the rotation motor 71 is operated to pull the pulley 7
2. The rotary table 61 is driven to rotate in the direction of arrow R in FIG. 2 via the endless belt 73 and the pulley 61a (ST2).
The rotation of the turntable 61 continues (ST3), and the spring fixing portion 64 advances. Further, the turning arm 63 turns in the direction of arrow R in FIG. The engaging pin 63d of the swing arm 63 comes into contact with the arm body 11 of the swing arm 10, and the swing arm 10 is
Is rotated in the direction of arrow R in FIG. At this time, the compression spring 65 is slightly compressed by the inertial force of the swing arm 10, and the pressure is detected by the pressure sensor 64 a provided on the spring fixing portion 64.

In the control / judgment unit 101, based on the ON / OFF signal of the output from the first proximity sensor 81, when the output is OFF, the rotation of the turntable 61 is continued (ST3, ST4). Control / judgment unit 1
In 01, it is determined whether or not the output of the pressure sensor 64a at the time when the first proximity sensor 81 detects the first wall portion 62a and the output is turned on has exceeded a predetermined value input in advance (S).
T5).

When there is no problem with the rotary bearing 12 of the swing arm 10, the pressure detected by the pressure sensor 64a does not significantly change. Because the output of the pressure sensor 64a does not exceed the specified value in ST5,
Proceeding to 6, the rotation of the turntable 64a is continued.

On the other hand, if the rotary bearing 12 is defective, the swing arm 10 does not rotate at all,
Since it rotates only slightly, the swing arm 63 hardly swings. At this time, since the rotary table 61 continues to rotate, the spring fixing portion 64 advances, and the rotating arm 63 moves.
And the distance becomes shorter. Therefore, the compression spring 65 is compressed, and the pressure detected by the pressure sensor 64a increases.

If the output of the pressure sensor 64a exceeds the specified value, the process proceeds to ST20, in which the rotation of the turntable 61 is stopped, and "abnormal bearing rotation resistance" is displayed on the CRT 102. Thereafter, the process proceeds to ST12 described later.

Further, the control / judgment unit 101
If the output is OFF based on the ON / OFF signal of the output from the proximity sensor 83, the rotation of the turntable 61 is continued (ST6, ST7). As a result, the swing arm 10 turns, and the coil mounting portion 13 is
3 enter the gap 43a.

In the control / judgment unit 101, it is determined whether or not the output of the pressure sensor 64a at the time when the second proximity sensor 82 detects the second wall portion 62b and the output is turned on exceeds a predetermined value input in advance. Is determined (ST8).

When the coil 15 is mounted within the allowable range of the coil mounting portion 13, the coil 15 can enter the gap 43a without being caught by the GO gauge 43 as shown in FIG. It passes through the GO gauge 43. Therefore, the compression spring 65 is hardly compressed, and the force F applied to the pressure sensor 64a is small. ST
In step 8, the output of the pressure sensor 64a does not exceed the specified value, and the process proceeds to ST9, where the second proximity sensor 82 does not detect the second wall 62b, and continues to rotate until the output of the second proximity sensor 82 is turned off. (ST9, ST1
0). Then, when the output of the second proximity sensor 82 is turned off, the rotation of the turntable 61 is stopped, and "normal swing arm" is displayed on the CRT 102 (ST11).

On the other hand, when the coil 15 is not mounted on the coil mounting portion 13 within the allowable range, the coil 15 comes into contact with the GO gauge 43 as shown in FIG. Stops. At this time,
Since the rotary table 61 continues to rotate, the spring fixing portion 64 advances, and the distance from the turning arm 63 decreases. Therefore, the compression spring 65 is compressed, and the restoring force F 'of the compression spring 65 is applied to the pressure sensor 64a. Therefore, the pressure detected by the pressure sensor 64a increases. If the value exceeds the specified value, the process proceeds to ST30, in which the rotation of the turntable 61 is stopped, and "Coil mounting height failure" is displayed on the CRT 102. Thereafter, the process proceeds to ST12 described later.

After one of the above-mentioned "abnormal bearing rotation resistance", "insufficient coil mounting height", and "swing arm" is displayed, the cylinder 44d of the clamper 44 is operated, and the swing arm 10 is moved by the pin 44f. Rotary bearing 1
Release 2. Then, the swing arm 10 is removed from the base plate 31 (ST12), and the rotary table 61 and the turning arm 63 are returned to the positions before the measurement (ST13),
End the inspection.

As described above, in the swing arm inspection apparatus 20 of the present embodiment, the mounting height of the rotary bearing 12 and the coil 15 of the swing arm 10 is inspected without relying on the sense of the operator's hand. Therefore, it is possible to eliminate the variation in the inspection.

FIG. 6 is a diagram showing a modification of the present embodiment. In this modification, a rotary table 200 is provided instead of the rotary table 60 in the above-described embodiment. The turntable unit 200 includes a turntable 20 arranged on the base plate 31 so as to have a vertical rotation axis.
1 is provided. A first wall portion 202a is formed on the periphery of the turntable 201, and a second wall portion 202b is formed above the first wall portion 202a.

A swivel arm 203 is mounted on the upper surface of the turntable 201. The swivel arm 203 includes a base end 203 a coaxially and rotatably attached to the turntable 201, and an arm 203 b extending from the base end 203 a in a radial direction of the turntable 201.
A tip 203c formed at the other end of the arm 203b, an engaging pin 203d extending from the tip 203c in the direction of arrow Z in FIG.
c) and a sender dog 203e attached to the transmission.

A spring fixing portion 204 is provided on the upper surface of the rotary table 201, and a compression spring 205 is arranged between the rotary table 201 and the tip portion 203c of the turning arm 203 described above. Further, the proximity sensor 2 is provided on the upper surface of the turntable 201.
06 is provided. The proximity sensor 206 is connected to the control / judgment unit 101 of the control unit 100, and is configured to transmit a signal when the sensor dog 203e approaches.

With this configuration, when the mounting height of the rotating shaft 12 of the swing arm 10 or the coil 15 is not sufficient, the turning arm 203 is moved to the position shown in FIG. It turns in the direction of arrow R. Therefore, the compression spring 205 is compressed, and the sensor dog 203e moves in front of the proximity sensor 206. The proximity sensor 206 detects the sensor dog 203e and sends a signal to the control / judgment unit 101. On the other hand, in the control / judgment unit 101, the rotational position of the turntable 201 is detected in the same manner as in the above-described embodiment. "Coil mounting height defect" and CR
Displayed at T102.

The present invention is not limited to the above embodiment. That is, in the above embodiment, the control of each device and the quality judgment are performed by the sequencer.
A microcomputer, a personal computer, or the like may be used.
In addition, although the setting is performed by the operator when setting the swing arm, the setting may be performed using a robot or a transfer unit. Further, the rotational positions of the turntables 61 and 201 and the rotational positions of the turning arms 63 and 203 may be detected by an encoder to detect a relative position shift. In addition, it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0050]

According to the first aspect of the present invention, a work supporting portion for fixing an inner ring of a rotary bearing of a work and rotatably supporting an outer ring and a work supported by the work supporting portion are fixed. And a rotation drive unit that is pressed in the direction to rotate. In this rotary drive unit, the rotary drive unit drives the distal end of the turning arm in a predetermined direction via a spring fixing unit and a compression spring as the rotary table rotates in a predetermined direction.

On the other hand, in the pass / fail judgment section, when the rotational resistance of the work increases due to a malfunction of the rotary bearing or the like, the compression spring is compressed, and the spring is fixed by the distance detecting section until the rotation angle of the rotary table reaches a predetermined angle. The distance detecting section detects that the distance between the section and the tip of the turning arm has become equal to or less than a specified value, and the determining section can determine that the workpiece is defective.

Therefore, it is possible to detect the rotational resistance generated due to the malfunction of the rotary bearing of the swing arm or the like with a simple configuration. For this reason, there is no need to rely on the operator's feelings, so that the variation in the determination result of the quality of the swing arm can be reduced.

According to the second aspect of the present invention, the distance detecting section measures the force received by the spring fixing section from the compression spring by the pressure sensor.
It can be detected that the distance between the spring fixing portion and the tip of the turning arm is equal to or less than a specified value. Therefore, an increase in the rotational resistance of the swing arm can be detected with a simple configuration.

According to the third aspect of the present invention, the distance detecting section detects the distal end based on the proximity sensor that the distance between the spring fixing section and the distal end of the turning arm has become equal to or greater than a specified value. Thus, it is possible to detect that the distance between the spring fixing portion and the tip of the turning arm has become equal to or less than the specified value. Therefore, an increase in the rotational resistance of the swing arm can be detected with a simple configuration.

According to the fourth aspect of the present invention, the rotation angle detecting section is provided on a wall provided in a predetermined angle range around the periphery of the rotary table when the proximity sensor has reached a predetermined angle. Since it is arranged at a position facing the unit, it can be detected based on the fact that the rotation angle of the turntable has reached a predetermined angle. Therefore, the rotation angle of the turntable can be detected with a simple configuration.

According to the fifth aspect of the present invention, when the work is not formed in a predetermined shape, the work is provided with a gauge that regulates rotation of the work in a predetermined direction by engaging with a part of the work. Accordingly, the rotational resistance of the work can be increased, and the defect of the work can be detected.

According to the sixth aspect of the present invention, a work shaft supporting portion for fixing an inner ring of a rotary bearing of a work and rotatably supporting an outer ring, and moving a work supported by the work shaft support in a predetermined direction. And a rotation drive unit for rotating and driving by pressing. The rotation drive unit drives the tip of the turning arm in a predetermined direction as the rotary table rotates in a predetermined direction. On the other hand, in the pass / fail determination unit, if the work does not rotate due to a malfunction of the rotary bearing or the like, the pressure detection unit detects by the pressure detection unit that the pressure applied to the turning arm has exceeded a predetermined value. It can be determined to be defective.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a swing arm inspection apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of the apparatus.

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

FIG. 4 is an explanatory view showing the operation principle of the device.

FIG. 5 is a flowchart showing the operation of the apparatus.

FIG. 6 is a perspective view showing a modification of the apparatus.

FIG. 7 is a diagram showing a general swing arm.

FIG. 8 is a plan view showing a state where a coil and a magnetic head are attached to the swing arm.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Swing arm (work) 12 ... Rotating bearing 13 ... Coil mounting part 15 ... Coil 20 ... Swing arm inspection device (work inspection device) 30 ... Inspection part 40 ... Swing arm shaft support part 50 ... Rotation drive part 60,200 ... Rotation Table portions 61, 201 Rotary tables 63, 203 Rotating arms 64, 204 Spring fixing portions 64a, 204a Pressure sensors 81 First proximity sensor 82 Second proximity sensor 100 Control unit 101 Control / judgment unit 102 … CRT

Claims (6)

[Claims] 1. A work inspecting apparatus for inspecting a work formed in a predetermined shape and provided with a rotating bearing at the center of rotation thereof, wherein the inner ring of the rotating bearing of the work is fixed and the outer ring is rotatable. A work shaft support for supporting the work, a rotation drive unit for pressing the work supported by the work support in a predetermined direction and rotating the work, and the rotation drive unit is disposed coaxially with the work shaft support and A rotation table that rotates in a predetermined direction; a rotation angle detection unit that detects a rotation angle of the rotation table; and a detection unit that detects that a distance between the spring fixing unit and the tip end of the turning arm has become a prescribed value or less. A distance detecting unit, and determining that the distance has become equal to or less than the specified value by the distance detecting unit before the rotation angle of the turntable detected by the rotation angle detection unit reaches a predetermined angle. A quality determination unit having a determination unit for determining that the work is defective; a spring fixing unit provided on the rotary table; and a base end portion coaxially and rotatably disposed with the rotary table. A pivot arm having a tip portion disposed on the predetermined direction side of the spring fixing portion and engaging with the work supported by the work shaft support portion; and between the spring fixing portion and a tip portion of the turning arm. And a compression spring provided in the work inspection apparatus. 2. The work inspection apparatus according to claim 1, wherein the distance detecting section includes a pressure sensor for measuring a force received by the spring fixing section from the compression spring. 3. The apparatus according to claim 1, wherein the distance detecting section includes a proximity sensor for detecting the distal end of the turning arm based on the fact that the distance has exceeded a specified value.
A work inspection device according to item 1. 4. The rotation angle detecting section is opposed to a wall provided in a predetermined angle range of a periphery of the rotation table, and the wall is based on the rotation angle of the rotation table reaching the predetermined angle. The workpiece inspection device according to claim 1, further comprising a proximity sensor disposed at a position where the workpiece is located. 5. A gauge for regulating rotation of the work in the predetermined direction by engaging a part of the work when the work is not formed in a predetermined shape. The work inspection device according to claim 1. 6. A work inspecting apparatus for inspecting a work formed in a predetermined shape and provided with a rotating bearing at the center of rotation thereof, wherein the inner ring of the rotating bearing of the work is fixed and the outer ring is rotatable. A work supporting portion to be supported, a rotation drive portion that presses the work supported by the work support portion in a predetermined direction to rotate the work, and the rotation drive portion is disposed coaxially with the work support portion, and A rotation table that rotates in a predetermined direction; a rotation angle detection unit that detects a rotation angle of the rotation table; a pressure detection unit that detects a pressure applied to the swing arm; and a pressure applied to the swing arm by the pressure detection unit. A quality determination unit having a determination unit for determining that the work is defective based on a predetermined value or more; and a base end fixed on the rotary table, and A work inspecting device comprising: a turning arm having an end portion engaged with the work supported by the work supporting portion.