JP5109188B2 - Capacitor leakage current measuring method and capacitor leakage current measuring device - Google Patents

Description

  The present invention relates to a capacitor leakage current measuring method and a capacitor leakage current measuring apparatus for measuring a capacitor leakage current.

  The method for measuring the leakage current of a capacitor generally follows the provisions of 4.9 of JIS C 5101-1, which is a Japanese industrial standard. This regulation is “Apply a DC voltage to the capacitor and measure it up to about 5 minutes after reaching that voltage. If the specified leakage current value is reached in a short time, it is not necessary to apply it for 5 minutes.” That's it.

  FIG. 21 is an equivalent circuit diagram of a general capacitor C0 involved in leakage current measurement. As shown in FIG. 21, the capacitor C0 is equivalently configured by connecting a main capacitance C, an insulation resistance R1, and a dielectric absorption factor D in parallel. The dielectric absorption factor D represents dielectric polarization formed by an electric field generated when a voltage is applied to the capacitor C0, as an internal resistance r and a capacitance (hereinafter referred to as dielectric polarization capacitance) connected in series. is there. As described in Non-Patent Document 1, the dielectric polarization is stabilized after a certain time has elapsed since the start of charging of the capacitor C0, but until the stabilization, the dielectric polarization is converted to the dielectric polarization capacitance via the internal resistance r. Charging is performed. Hereinafter, the charging to the dielectric polarization capacitance is referred to as charging to the dielectric absorption factor D.

  As shown in FIG. 21, the dielectric absorption factor D is not necessarily represented equivalently by only one set of the internal resistance r and the dielectric polarization capacitance connected in series, but the internal resistance r and the dielectric polarization capacitance connected in series. It may be expressed by an equivalent circuit in which a plurality of sets are connected in parallel. Even in such a case, the time change of the current flowing through the capacitor C0 when the capacitor C0 is charged does not depend on the internal configuration of the dielectric absorption factor D. Therefore, in FIG. The dielectric absorption factor D is equivalently expressed by only one set.

  The current flowing through the capacitor C0 after the dielectric polarization is stabilized is actually a leakage current flowing through the insulation resistance R1. Therefore, in order to accurately measure the leakage current of the capacitor C0, it is necessary to measure the leakage current after the dielectric polarization is stabilized. By measuring this leakage current, the insulation resistance R1 can also be obtained.

  FIG. 22 is a diagram showing a time change of the current flowing through the capacitor C0 when charging is performed by applying a specified voltage to the capacitor C0, where the horizontal axis represents time and the vertical axis represents the current flowing through the capacitor C0. Region (A) in FIG. 22 is a charging current region, and the main capacitor C is mainly charged. The region (A) is a dielectric absorption region, and the dielectric absorption factor D is charged. The region (c) is a leakage current region after the dielectric absorption factor D is sufficiently charged, and the leakage current is measured in this region.

  Since it takes a certain amount of time to charge the dielectric absorption factor D in the dielectric absorption region (A), the time from application of the specified voltage to the capacitor C0 until reaching the leakage current region (C) also increases. End up. The above JIS C 5101-1 rule that “a DC voltage is applied to the capacitor and measured approximately 5 minutes after reaching that voltage” is charged with the above dielectric absorption factor D, and the leakage current If the leakage current is not measured after reaching the area, it means that an accurate current value cannot be measured.

  However, since it takes time to charge the individual capacitors C0 in this case, pay attention to the latter half of this rule “if the specified leakage current value is reached in a short time, it is not necessary to apply for 5 minutes”. In order to cope with this, several methods for reaching the leakage current region in a short time have been proposed.

For example, in Patent Document 1, charging is performed in a plurality of times, the charging period per time is shortened, and the charging voltage is controlled for each charging period, and a high voltage is applied to the capacitor within a possible range. Apply to achieve fast charging.
Electrical Engineering Handbook (6th edition), pages 110, 181 JP-A-10-115651

  However, the method of Patent Document 1 has the following problems.

  FIG. 23 is a plan view of a conventional leakage current measuring apparatus. A workpiece composed of the capacitor C0 to be measured is conveyed to the separation supply unit 2 by the linear feeder 1. The separation supply unit 2 stores individual workpieces one by one in a plurality of workpiece storage holes 4 arranged at equal intervals around the circular transfer table 3. The transport table 3 can be rotated intermittently around the central axis 5 in, for example, the R direction shown in the figure, and along the peripheral edge of the transport table 3, a plurality of charging stages 6, a pre-measurement charging stage 7 and a measurement stage 8 are spaced apart from each other.

  Two probes (not shown in FIG. 23) are provided on the bottom surfaces of the plurality of charging stages 6 so as to be movable up and down with respect to the electrodes provided at both ends of the workpiece. When the workpiece storage hole 4 comes to the position of the charging stage 6 as the transfer table 3 moves, the two probes come into contact with both end electrodes of the workpiece to charge the workpiece initially.

  While the workpiece is moving between the plurality of charging stages 6 or between the charging stage 6 and the pre-measurement charging stage 7, the probe is not in contact with both end electrodes of the workpiece, and the charge accumulated in the workpiece is naturally Discharged. In this discharge period, as can be seen from the equivalent circuit of FIG. 21, the charge stored in the main capacitor C moves through the internal resistance r to the capacity of the dielectric absorption factor D, and thereby the dielectric absorption factor D is charged. . The time required to charge the dielectric absorption factor D is called dielectric absorption time. The dielectric absorption time includes a time during which the workpiece is charged in a state where it is stopped at the charging stage 6 and a time during which the workpiece moves between the plurality of charging stages 6 or between the charging stage 6 and the pre-measurement charging stage 7. It is the combined time.

  Thereafter, when a workpiece charged up to a leakage current region in several charging stages 6 reaches the pre-measurement charging stage 7, a probe (not shown) comes into contact with the electrode of the workpiece stored in the workpiece storage hole 4, and the main capacitance C is increased. Fully charged. As a result, the charge of the main capacitor C which has been reduced by being used for charging the dielectric absorption factor D is replenished. Thereafter, the workpiece reaches the measurement stage 8 from the pre-measurement charging stage 7 and a probe (not shown) comes into contact with the electrode of the workpiece accommodated in the workpiece accommodation hole 4 to measure a leakage current flowing through the insulation resistance R1 of the workpiece.

  After measuring the leakage current, the electric charge charged in the work is discharged, and the work is discharged from the discharge stage 9 toward a storage box (not shown). The next workpiece is stored again in the separation supply unit 2 in the workpiece storage hole 4 that is empty after the workpiece is discharged.

  When measuring the leakage current of a capacitor using this apparatus, the following problems occur. In this apparatus, when handling a workpiece having a large main capacitance C, the capacitance of the dielectric absorption factor D increases as the value of C increases, and the workpiece is leaked by sufficiently charging the dielectric absorption factor D. The time required to reach the current region becomes longer.

  In order to cope with this, it is necessary to increase the dielectric absorption time, that is, to increase the time for the work to stop on the stage, or to reduce the speed at which the work moves between the stages. However, if this is done, there is a problem that the processing quantity of the work per unit time, that is, the processing capacity, is reduced.

  In order to increase the dielectric absorption time without reducing the processing capacity of the workpiece, the diameter of the transfer table 3 is increased without changing the moving speed of the transfer table 3 between stages, and the distance that the workpiece moves between stages is increased. It is possible to do. However, this increases the size of the apparatus, and increases the cost, for example, because it is not possible to share a transfer table that handles a workpiece with a large main capacity C value and a transfer table that handles a workpiece with a small main capacity C value. There is a problem of becoming a factor of.

  The present invention has been made in view of the above-mentioned problems, and its object is to measure the leakage current with high accuracy without reducing the processing capacity when measuring the leakage current of the capacitor, and to further increase the size of the transfer table. It is an object of the present invention to provide a capacitor leakage current measuring method and a measuring apparatus that can be shared by capacitors having various capacities without being converted into a capacitor.

According to one aspect of the present invention, a capacitor to be measured is accommodated in each of a plurality of work storage holes provided at equal intervals in a circulatory conveyance body, and the conveyance body is circulated intermittently. In the capacitor leakage current measuring method for measuring the leakage current of the capacitor, a step of storing the capacitor in the plurality of workpiece storage holes at a storage stage disposed around the transport body; and around the transport body The step of charging the capacitors accommodated in the plurality of workpiece accommodating holes in order at the arranged charging stage, and the measurement arranged around the carrier after the carrier has circulated more than one round in front charge stage, in step a, measuring stage which is arranged around the carrier to recharge the capacitor accommodated in the plurality of workpiece storage hole, before After charging the capacitor with the charge stage and the measurement before charge stage, and a step of measuring the leakage current of the capacitor, while the capacitor is conveyed to the measurement before charge stage from said charge stage, The dielectric absorption factor is charged by moving at least a part of the electric charge stored in the main capacity of the capacitor to the dielectric absorption factor for a longer time than one round of the carrier, and in the pre-measurement charging stage, The reduced charge of the main capacitance transferred to the dielectric absorption factor is replenished, and in the measurement stage, the leakage current of the capacitor charged with both the main capacitance and the dielectric absorption factor is measured. A method for measuring capacitor leakage current is provided.

Further, according to one aspect of the present invention, a capacitor to be measured is accommodated in each of a plurality of workpiece storage holes provided at equal intervals in a revolving transport body, and the transport body is intermittently circulated. In the capacitor leakage current measuring device that measures the leakage current of the capacitor, the storage means is disposed around the transport body, the storage means stores the capacitor in the plurality of workpiece storage holes, and is disposed around the transport body. Charging means for sequentially charging the capacitors stored in the plurality of workpiece storage holes, and arranged around the transport body, and after the transport body circulates more than one round, the plurality of work storage holes measurement before charging means to recharge the housed said capacitor is disposed around the carrier, after charging the capacitor by the charging means and the measuring before charging means, Comprising measuring means for measuring the leakage current of the serial capacitor, and while the capacitor is carried to the charging means before said measurement from said charging means, a time longer than the conveying member rotates one round, the main capacitance of the capacitor The dielectric absorption factor is charged by moving at least a part of the charge stored in the dielectric absorption factor, and the pre-measurement charging means transfers the reduced charge of the main capacitance transferred to the dielectric absorption factor. It is supplemented, and the measuring means measures the leakage current of the capacitor charged with both the main capacitance and the dielectric absorption factor, and a capacitor leakage current measuring device is provided.

  According to the present invention, when measuring the leakage current of a capacitor, it is possible to measure the leakage current with high accuracy without degrading the processing capability, and it can be shared by capacitors of various capacities without increasing the size of the transfer table.

  First, the basic principle of the present invention will be briefly described. In the capacitor leakage current measuring apparatus according to the present invention, the capacitor is accommodated, charged, the leakage current is measured, and discharged. By making the time from storage to discharge longer than one turn of the transfer table, it takes a long time from charging to leakage current measurement, and after charging both the main capacity and dielectric absorption factor, measure the leakage current of the capacitor. Is what you do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Hereinafter, the measurement target capacitor C0 that is a target for measuring the leakage current is referred to as a workpiece.

(First embodiment)
FIG. 1 is a plan view of a capacitor leakage current measuring apparatus according to the first embodiment of the present invention. In FIG. 1, the same components as those in FIG. 23 are denoted by the same reference numerals, and different points will be mainly described below. The capacitor leakage current measuring apparatus of FIG. 1 includes a linear feeder 1, a separation supply unit 2, a circular conveyance table (conveyance body) 3 having a plurality of work storage holes 4 formed at equal intervals, a charging stage 6, A pre-measurement charging stage 7, a measurement stage 8, a discharge stage 9, and a transport pitch adjusting means 10 are provided.

  In the present embodiment, the total number of work storage holes 4 is 11, and the positions of the work storage holes 4 are represented by (1) to (11).

  The separation supply unit 2 is disposed at the position (1). Moreover, the charging stage 6 is arrange | positioned in the position (3). Furthermore, the interval between the pre-measurement charging stage 7 and the measurement stage 8 is arranged at the positions (6) and (8), respectively, and is separated by twice the interval between the workpiece storage holes 4. The discharge stage 9 is disposed at the position (10).

  Here, “distance” is defined as follows. In FIG. 1, when the transfer table 3 in FIG. 1 is rotated by a central angle α corresponding to, for example, between adjacent workpiece storage holes, the center portion of the workpiece in the workpiece storage hole corresponds to a dashed arc T corresponding thereto. Rotate like so. The length measured along this arc T will be referred to as the distance.

  The conveyance pitch adjusting means 10 is configured to intermittently rotate the conveyance table 3 around the central axis 5 in the counterclockwise direction (R direction in the drawing) in units of twice the interval between the workpiece storage holes 4 (hereinafter, intermittent rotation). ) Adjust the transport pitch so that At this time, the distance that the workpiece stored in a workpiece storage hole 4 moves by one intermittent rotation corresponds to two positions. For example, if a work storage hole 4 is at position (1) when the transfer table 3 is in a stopped state, the work storage hole 4 is moved to a position ( Go to 3).

  Next, the processing operation of the first embodiment will be described. In FIG. 1, the case where all of the workpiece storage holes 4 are empty is defined as an initial state. In the initial state, it is assumed that a work storage hole 4 is at the position (1) of the separation supply unit 2 and a work is stored. When the transfer table 3 rotates intermittently, the workpiece storage hole 4 in which the workpiece is stored stops at a position where it increases by 2 with respect to the position (1) as in the positions (3), (5), and (7). In addition, after the position (11), it stops at the position (2), and then stops intermittently at two different positions such as positions (4), (6) and (8).

  Here, since the total number of the work storage holes 4 is 11, and the unit in which the transfer table 3 rotates intermittently is twice the interval between the work storage holes 4, the work storage holes 4 in which the work is stored at the position (1). Returns to the position (1) again when the transport table 3 rotates twice. That is, the work stored in the work storage hole 4 is charged at the charging stage 6 (position (3)) and then rotated more than one turn on the transfer table 3, and then the pre-measurement charging stage 7 (position (6) )), And then the leakage current is measured at the measurement stage 8 (position (8)) and then discharged from the discharge stage 9 (position (10)).

  Thereby, the moving distance of the workpiece from the charging stage 6 to the pre-measurement charging stage 7 can be made larger than one round of the transfer table 3. Therefore, it is possible to ensure a long dielectric absorption time for charging the dielectric absorption factor until the leakage current region is reached, and it is possible to accurately measure the leakage current of a capacitor having a large main capacity.

  FIG. 2 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 2 shows the types of workpieces stored in the first round of the transfer table 3 and the types of workpieces stored in the second round and processing at each of the workpiece storage hole positions (1) to (11). Indicates the stage name. FIG. 2 shows an example in which the transfer table 3 rotates intermittently from the first round to the second round in the order of the work storage hole positions (1) to (11). That is, time elapses in the order of the first hole storage hole position (1) to the first rotation storage hole position (11), the second rotation storage hole position (1) to the second rotation storage hole position (11). Then, after the second hole of the storage hole position (11), it returns to the first hole of the storage hole position (1).

  First, the workpiece is supplied to the workpiece storage hole 4 at the storage hole position (1) with respect to the transfer table 3 in the initial state where all the workpiece storage holes 4 are empty. This is indicated by “X” in the storage hole position (1) in the first round in FIG. In FIG. 2, the stage name corresponding to the storage hole position (1) is “storage”. This indicates that the separation supply unit 2 of FIG. 1 exists at the storage hole position (1).

  When the transfer table 3 rotates once for a while, the work reaches the storage hole position (3) in FIG. In FIG. 2, the stage name corresponding to the storage hole position (3) is “charge”. This indicates that the charging stage 6 of FIG. 1 exists at the storage hole position (3). The workpiece is charged at the charging stage 6. At this time, the next workpiece is stored in the workpiece storage hole 4 at the storage hole position (1). The work storage hole 4 at the storage hole position (2) is “empty” in FIG. 2, which indicates that the work has not been stored yet. As will be described later, the first work is stored in the work storage hole 4 at the storage hole position (1) in the second round.

  The distance from the charging stage 6 to the pre-measurement charging stage 7 is separated by a distance obtained by rotating the transfer table 3 more than one round. That is, in FIG. 2, the position where the work stops after the first hole storage hole position (3) corresponding to the charging stage 6 is the first hole storage hole position (5). Further, a pre-measurement charging stage 7 is provided at a position rotated more than one round. The position is the second hole storage hole position (6), and the corresponding stage name in FIG. 2 is “charge before measurement”. That is, the moving distance of the workpiece from the charging stage 6 to the pre-measurement charging stage 7 is from the first hole storage hole position (3) to the second rotation storage hole position (6). It is rotating more than the circumference. While moving from the charging stage 6 to the pre-measurement charging stage 7, the dielectric absorption factor inside the capacitor is charged.

  As described with reference to FIG. 21, it takes time to charge the dielectric absorption factor of the capacitor. However, in this embodiment, after charging the capacitor at the charging stage 6, the conveyance table 3 is rotated one turn. Since the pre-measurement charging stage 7 is reached after rotating more, the dielectric absorption factor of the workpiece (capacitor) can be sufficiently charged when the pre-measurement charging stage 7 is reached.

  In the pre-measurement charging stage 7, the main capacity of the work is fully charged. Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (8). In FIG. 2, the stage name corresponding to the storage hole position (8) is “measurement”. This indicates that the measurement stage 8 in FIG. 1 exists at the storage hole position (8). The leakage current is measured at the measurement stage 8, and the charge charged in the workpiece after the measurement is discharged.

  Thereafter, the transfer table 3 is intermittently rotated, and the work reaches the storage hole position (10). In FIG. 2, the stage name corresponding to the storage hole position (10) is “discharge”. This indicates that the discharge stage 9 in FIG. 1 exists at the storage hole position (10). The work is discharged at the discharge stage 9, and the empty work storage hole 4 again reaches the same storage hole position (1) as the first round, and a new work is stored by the separation supply unit 2.

  Thus, when the conveyance table 3 makes two rounds, the workpiece storage hole 4 returns to the original position. Note that “Y” in FIG. 2 indicates that the work is stored in the second round in the storage hole position where the work was not stored in the first round. The processing content of the workpiece corresponding to this “Y” is not shown in FIG. 2, but the workpiece storage hole 4 discharged from the workpiece storage hole 4 at the storage hole position (10) on the third round and empty Although not shown in FIG. 2, a new workpiece is stored in the storage hole position (1) on the fourth round.

  Further, the shaded portion in FIG. 2 indicates the corresponding position between the workpiece and each stage name. The stage names are arranged in the order of processes from top to bottom, that is, as time passes. For this reason, when the main capacity of the capacitor is small and no time is required from the charging stage 6 to the pre-measurement charging stage 7, that is, when the entire process can be completed while the conveying table 3 makes one round, the conveying table 3 By making the intermittent rotation unit the same as the interval between the adjacent workpiece storage holes 4, the transfer table 3, the separation supply unit 2 (storage stage), the charging stage 6, the pre-measurement charging stage 7, the measurement stage 8 and Equipment such as the discharge stage 9 can be shared.

  However, when the main capacity of the capacitor is small, the distance from the pre-measurement charging stage 7 to the measurement stage 8 is set to a distance corresponding to one intermittent rotation of the transfer table 3. Specifically, when the main capacity of the capacitor is large and the unit of intermittent rotation is twice the interval between the workpiece storage holes 4, the main capacity of the capacitor is small and the unit of intermittent rotation is the same as the interval between the workpiece storage holes 4. Sometimes, the distance between the pre-measurement charging stage 7 and the measurement stage 8 is changed.

  Therefore, two types of devices are prepared in which the measurement stage 8 and the pre-measurement charging stage 7 arranged immediately before the measurement stage 8 are integrated, and one of them is set to a distance between the pre-measurement charging stage 7 and the measurement stage 8 more than the other. Spread it out. Thus, depending on whether or not the main capacity of the capacitor is large, the leakage currents of both the large and small capacitors can be accurately measured by simply replacing this device.

  As a specific example, the embodiment shown in FIG. 1 and FIG. 2 is the same as the case where the main capacity of the capacitor is small, that is, the intermittent rotation unit of the transfer table 3 is the same as the interval between the adjacent work storage holes 4. A method for performing measurement during one round is shown below.

  FIG. 3 is a plan view of a capacitor leakage current measuring apparatus which is a modification of FIG. 1 and measures a leakage current of a capacitor having a small main capacity. The conveyance pitch adjusting means 10 selects one of charge measuring means 100 or 101 described later according to the capacity of the capacitor, and sets the conveyance pitch for intermittently rotating the conveyance table 3 with the interval between the work storage holes 4 as a unit. adjust. FIG. 4 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 4 shows an example in which the leakage current is measured while the conveyance table 3 makes one round, and the unit of intermittent rotation of the conveyance table 3 coincides with the interval of the work storage holes 4. Therefore, when the operation is started from the initial state where all the workpiece storage holes 4 are empty, the workpieces are stored in all the workpiece storage holes 4 while the transfer table 3 makes one round as indicated by “X”.

  Here, the distance between the pre-measurement charging stage 7 and the measurement stage 8 coincides with the distance for one intermittent rotation of the transfer table 3, that is, the distance between the adjacent work storage holes 4. Therefore, in FIG. 1, the charge measuring unit 100 in which the pre-measurement charging stage 7 and the measurement stage 8 are integrated is used, but in FIG. 3, another charge measurement in which the pre-measurement charging stage 7 and the measurement stage 8 are integrated. The means 101 is replaced. The distance between the pre-measurement charging stage 7 and the measurement stage 8 in the charge measurement unit 101 is ½ of the distance between the pre-measurement stage 7 and the measurement stage 8 in the charge measurement unit 100. More specifically, the distance between the pre-measurement charging stage 7 and the measurement stage 8 in the charge measuring unit 101 is a distance of intermittent rotation when the main capacity of the capacitor is small, that is, a distance between adjacent workpiece storage holes 4. .

  As described above, when measuring the leakage current of a capacitor having a large main capacity, the charge measuring means 100 is used. By making it the same as the interval between the storage holes 4, the measurement of the leakage current of the capacitor having a small main capacity can be completed in one round of the transfer table 3 as shown in FIG. 4.

  Here, a comparison is made between the dielectric absorption time and the processing capability when measuring the leakage current of a capacitor having a large main capacity (FIG. 2) and when measuring the leakage current of a capacitor having a small main capacity (FIG. 4). As a numerical example, it is assumed that the stop time of the transport table 3 is 10 ms, and the work movement time required for one intermittent rotation is 15 ms.

In the case of FIG. 2, since there are nine stop positions from the charging stage 6 (accommodating hole position (3)) to the measuring stage 8 (accommodating hole position (8)) and the intermittent rotation is 8 times, the charging stage 6 to the measuring stage 8 The time required until that is the dielectric absorption time t1 is
t1 = 10 ms × 9 + 15 ms × 8
= 210 ms
It becomes. Further, since the time required for the work to pass through each stage 6 to 8 is the sum of the work stop time and the movement time, the number of work processes per minute, that is, the processing capacity a1 is:
a1 = 60000ms / (10ms + 15ms)
= 2400.

On the other hand, in the case of FIG. 4, there are six stop positions from the charging stage 6 (housing hole position (3)) to the measurement stage 8 (housing hole position (8)) and five intermittent rotations. The required time from 6 to the measurement stage 8, that is, the dielectric absorption time t2 is
t2 = 10 ms × 6 + 15 ms × 5
= 135 ms
It becomes. Also, the number of workpieces processed per minute, that is, the processing capacity a2, is
a2 = 60000 ms / (10 ms + 15 ms)
= 2400.

  From the above, when FIG. 2 and FIG. 4 are compared, the processing capability is the same, but the dielectric absorption time is longer in FIG. 2, and FIG. 2 shows the case where the capacitance is large and the dielectric absorption time is long. It can be seen that FIG. 4 is suitable when the capacitance of the capacitor is small and the dielectric absorption time is short.

  Thus, in the first embodiment, the transfer table 3 rotates intermittently in units of twice the interval between the work storage holes 4, and the moving distance from the charging stage 6 to the pre-measurement charging stage 7 is set to 1 of the transfer table 3. Because it is longer than the circumference, even if the capacitor has a large main capacity, the dielectric absorption factor inside the capacitor can be sufficiently charged, and the leakage current is measured after the workpiece has reached the leakage current region. Measurement accuracy can be improved. Further, while the transfer table 3 is intermittently rotated, the workpieces are sequentially stored in the workpiece storage holes 4, and each workpiece is sequentially transferred to the charging stage 6, the pre-measurement charging stage 7 and the measurement stage 8. There is no risk of reducing the processing capability of the workpiece leakage current measurement processing.

  As a modification of the present embodiment, the charging stage 6, the pre-measurement charging stage 7, the measurement stage 8, and the discharge stage 9 are arranged in the order of processes, and the pre-measurement charging stage 7 and the measurement stage 8 are integrated to charge before measurement. Charge measurement means 100 and 101 having different distances between the stage 7 and the measurement stage 8 are provided. When the main capacity of the capacitor to be measured is large, the charge measurement means 100 is provided. When the main capacity is small, the charge measurement means 101 is provided. It is possible to choose. Depending on the capacity of the workpiece, either the charge measuring means 100 or the charge measuring means 101 is selected, and the unit of intermittent rotation of the transfer table 3 is adjusted so that the separation supply unit 2 and the transfer table 3 are shared. Capacitor leakage current can be measured. Thereby, the cost increase of the whole apparatus can be prevented.

(Second Embodiment)
In the second embodiment, two combinations of the charging stage 6, the pre-measurement charging stage 7 and the measurement stage 8 in the first embodiment are arranged in series, and the conveyance table 3 is rotated three times to measure the capacitor leakage current. Is what you do.

  FIG. 5 is a plan view of a capacitor leakage current measuring apparatus according to the second embodiment of the present invention. Components that are the same as those in FIG. 1 are denoted by the same reference numerals, and different points will be mainly described below.

  In the present embodiment, the total number of work storage holes 4 is 28, and the positions of the work storage holes 4 are represented by (1) to (28).

  The separation supply unit 2 is disposed at the position (1). Unlike FIG. 1, FIG. 5 includes two charging stages 61 and 62, pre-measurement charging stages 71 and 72, and measurement stages 81 and 82. Charging stages 61 and 62 are arranged at positions (4) and (15), respectively. The pre-measurement charging stages 71 and 72 are arranged at positions (9) and (20), respectively. Measurement stages 81 and 82 are arranged at positions (12) and (23), respectively. The interval between the pre-measurement charging stage 71 and the measurement stage 81 and the interval between the pre-measurement charging stage 72 and the measurement stage 82 are separated from each other by three times the interval between the workpiece storage holes 4. The discharge stage 9 is disposed at the position (26).

  The conveyance pitch adjusting means 10 adjusts the conveyance pitch so that the conveyance table 3 rotates intermittently around the central axis 5 in the counterclockwise direction (R direction shown in the drawing) in units of three times the interval between the work storage holes 4. To do. At this time, the distance traveled by one intermittent rotation of the workpiece stored in a workpiece storage hole 4 corresponds to three positions. For example, if a work storage hole 4 is at position (1) when the transfer table 3 is in a stopped state, the work storage hole 4 is moved to a position ( Move to 4).

  Next, the processing operation of the second embodiment will be described. In FIG. 5, the case where all of the workpiece storage holes 4 are empty is defined as an initial state. In the initial state, it is assumed that a work storage hole 4 is at the position (1) of the separation supply unit 2 and a work is stored. When the transport table 3 rotates intermittently, the workpiece storage hole 4 in which the workpiece is stored stops at a position where the workpiece table 3 increases by 3 with respect to the position (1) as in the positions (4), (7), and (10). Further, after the position (28), it stops at the position (3), and then stops intermittently at different positions such as positions (6), (9) and (12).

  Here, since the total number of the work storage holes 4 is 28 and the unit in which the transfer table 3 rotates intermittently is three times the interval between the work storage holes 4, the work storage holes 4 in which the work is stored at the position (1). Returns to the position (1) again when the transport table 3 rotates three times. That is, the work stored in the work storage hole 4 is charged at the charging stage 61 (position (4)) and then rotated more than one turn on the transfer table 3, and then the pre-measurement charging stage 71 (position (9)). )), And then the leakage current is measured at the measurement stage 81 (position (12)). Thereafter, in the same procedure, after charging at the charging stage 62 (position (15)), after being rotated more than one turn at the transfer table 3, it is recharged at the pre-measurement charging stage 72 (position (20)). Subsequently, the leakage current is measured at the measurement stage 82 (position (23)) and then discharged from the discharge stage 9 (position (26)).

  Thereby, the moving distance of the work from the charging stage 61 to the pre-measurement charging stage 71 and the moving distance of the work from the charging stage 62 to the pre-measurement charging stage 72 can be made larger than one turn of the transfer table 3. it can. Therefore, it is possible to ensure a long dielectric absorption time for charging the dielectric absorption factor until the leakage current region is reached, and it is possible to accurately measure the leakage current of a capacitor having a large main capacity.

  FIG. 6 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 6 shows the types of workpieces stored in the first round of the transport table 3 at the positions (1) to (28) of the workpiece storage holes, the types of workpieces stored in the second round, and the third round. This represents the type of workpiece to be stored and the stage name to be processed. FIG. 6 shows an example in which the transfer table 3 rotates intermittently from the first round to the third round in the order of the work storage hole positions (1) to (28). That is, the first hole storage hole position (1) to the first rotation storage hole position (28), the second rotation storage hole position (1) to the second rotation storage hole position (28), the third rotation Time elapses in the order of the storage hole position (1) to the storage hole position (28) in the third round, and after the storage hole position (28) in the third round, the position returns to the storage hole position (1) in the first round.

  First, the workpiece is supplied to the workpiece storage hole 4 at the storage hole position (1) with respect to the transfer table 3 in the initial state where all the workpiece storage holes 4 are empty. This is indicated by “X” in the storage hole position (1) in the first round in FIG. In FIG. 6, the stage name corresponding to the storage hole position (1) is “storage”. This indicates that the separation supply unit 2 of FIG. 5 exists at the storage hole position (1).

  When the transfer table 3 rotates once for a while, the work reaches the storage hole position (4) in FIG. In FIG. 6, the stage name corresponding to the storage hole position (4) is “charge 1”. This indicates that the charging stage 61 of FIG. 5 exists at the storage hole position (4). The workpiece is charged at the charging stage 61. At this time, the next workpiece is stored in the workpiece storage hole 4 at the storage hole position (1). The work storage hole 4 at the storage hole positions (2) and (3) is “empty” in FIG. 6, which indicates that the work has not been stored yet. As will be described later, the workpiece storage hole 4 stores the first workpiece at the storage hole position (1) of the second and third rounds.

  The distance from the charging stage 61 to the pre-measurement charging stage 71 is separated by a distance obtained by rotating the transfer table 3 more than one turn. That is, in FIG. 6, the position at which the work stops next to the first hole storage hole position (4) corresponding to the charging stage 61 is the first hole storage hole position (7). Further, a pre-measurement charging stage 71 is provided at a position rotated more than one turn. The position is the storage hole position (9) in the second round, and the corresponding stage name in FIG. 6 is “charge before measurement 1”. That is, the moving distance of the workpiece from the charging stage 61 to the pre-measurement charging stage 71 is from the first hole storage hole position (4) to the second rotation storage hole position (9). It is rotating more than the circumference. While moving from the charging stage 61 to the pre-measurement charging stage 71, the dielectric absorption factor inside the capacitor is charged.

  In the pre-measurement charging stage 71, the main capacity of the work is fully charged. Then, the conveyance table 3 is intermittently rotated, and the work reaches the storage hole position (12). In FIG. 6, the stage name corresponding to the storage hole position (12) is “measurement 1”. This indicates that the measurement stage 81 is present at the storage hole position (12). The measurement of the first leakage current is performed at the measurement stage 81, and the charge charged in the workpiece after the measurement is discharged.

  Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (15). In FIG. 6, the stage name corresponding to the storage hole position (15) is “charge 2”. This indicates that the charging stage 62 exists at the storage hole position (15). The workpiece is charged again at the charging stage 62.

  The distance from the charging stage 62 to the pre-measurement charging stage 72 is separated by a distance obtained by rotating the transfer table 3 more than one round. That is, in FIG. 6, the position at which the work stops next to the second hole storage hole position (15) corresponding to the charging stage 62 is the second round storage hole position (18). Further, a pre-measurement charging stage 72 is provided at a position rotated more than one round. The position is the storage hole position (20) in the third round, and the corresponding stage name in FIG. 6 is “charge before measurement 2”. That is, the moving distance of the workpiece from the charging stage 62 to the pre-measurement charging stage 72 is from the second hole storage hole position (15) to the third rotation storage hole position (20). It is rotating more than the circumference. While moving from the charging stage 62 to the pre-measurement charging stage 72, the dielectric absorption factor inside the capacitor is charged.

  In the pre-measurement charging stage 72, the main capacity of the work is fully charged. Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (23). In FIG. 6, the stage name corresponding to the storage hole position (23) is “measurement 2”. This indicates that the measurement stage 82 exists at the storage hole position (23). The measurement of the second leakage current is performed at the measurement stage 82, and the charge charged in the workpiece after the measurement is discharged.

  Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (26). In FIG. 6, the stage name corresponding to the storage hole position (26) is “discharge”. This indicates that the discharge stage 9 in FIG. 5 exists in the storage hole position (26). The work is discharged at the discharge stage 9, and the empty work storage hole 4 again reaches the same storage hole position (1) as the first round, and a new work is stored by the separation supply unit 2.

  Thus, when the conveyance table 3 makes three rounds, the workpiece storage hole 4 returns to the original position. Note that “Y” and “Z” in FIG. 6 indicate that the workpiece is stored in the second and third laps in the storage hole position where the workpiece is not stored in the first lap. The processing contents of the workpieces corresponding to “Y” and “Z” are not shown in FIG. 6, but are discharged from the workpiece storage holes 4 at the storage hole positions (26) on the fourth and fifth laps, respectively. Although not shown in FIG. 6, new workpieces are stored in the storage hole positions (1) on the fifth and sixth laps.

  In FIG. 6, the shaded portion indicates the corresponding position between the workpiece and each stage name. The stage names are arranged in the order of processes from top to bottom, that is, as time passes. For this reason, when the main capacity of the capacitor is small and no time is required from the charging stage 61 to the pre-measurement charging stage 71 and from the charging stage 62 to the pre-measurement charging stage 72, that is, the entire process of the transfer table 3 makes one round Can be completed by setting the unit of intermittent rotation of the transfer table 3 to be the same as the interval between the adjacent workpiece storage holes 4, so that the transfer table 3, the separation supply unit 2 (storage stage), the charging stage 61, 62, facilities such as pre-measurement charging stages 71 and 72, measurement stages 81 and 82, and discharge stage 9 can be shared.

  However, when the main capacity of the capacitor is small, the distance from the pre-measurement charging stage 71 to the measurement stage 81 and the distance from the pre-measurement charging stage 72 to the measurement stage 82 are set to a distance corresponding to one intermittent rotation of the transfer table 3. . Specifically, when the main capacity of the capacitor is large and the unit of intermittent rotation is three times the interval between the work storage holes 4, the main capacity of the capacitor is small and the unit of intermittent rotation is the same as the interval between the work storage holes 4. Sometimes, the distance between the pre-measurement charging stage 71 and the measurement stage 81 and the distance between the pre-measurement charging stage 72 and the measurement stage 82 are changed.

  Thus, as in the first embodiment, the measurement stage 81 and the pre-measurement charging stage 71 disposed immediately before the measurement stage 81 and the measurement stage 82 and the pre-measurement charging stage 72 disposed immediately before are integrated. Are prepared, and one of them is wider than the other in the distance between the pre-measurement charging stage 71 and the measurement stage 81 and between the pre-measurement charging stage 72 and the measurement stage 82. Thus, depending on whether or not the main capacity of the capacitor is large, the leakage currents of both the large and small capacitors can be accurately measured by simply replacing this device.

  As a specific example, this embodiment shown in FIGS. 5 and 6 is the same as the case where the main capacity of the capacitor is small, that is, the unit of intermittent rotation of the transfer table 3 is the same as the interval between the adjacent work storage holes 4. A method for performing measurement during one round is shown below.

  FIG. 7 is a plan view of a capacitor leakage current measuring apparatus which is a modification of FIG. 5 and measures the leakage current of a capacitor having a small main capacity. The transport pitch adjusting means 10 selects one of a charge measuring means 102 and a charge measuring means 103, which will be described later, or a charge measuring means 104 and a charge measuring means 105, according to the capacity of the capacitor. The conveyance pitch for intermittent rotation is adjusted with the interval between the work storage holes 4 as a unit.

  FIG. 8 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 8 shows an example in which the leakage current is measured while the transfer table 3 makes one round, and the unit of intermittent rotation of the transfer table 3 matches the interval of the work storage holes 4. Therefore, when the operation is started from the initial state where all the workpiece storage holes 4 are empty, the workpieces are stored in all the workpiece storage holes 4 while the transfer table 3 makes one round as indicated by “X”. Below, it demonstrates centering on difference with FIG. 3 and FIG.

  The charge measurement means 102 and the charge measurement means 103 used in FIG. 5 are apparatuses in which the pre-measurement charge stage 71 and the measurement stage 81 and the pre-measurement charge stage 72 and the measurement stage 82 are integrated, and their distances are adjacent workpieces. This is three times the distance between the storage holes 4. On the other hand, the charge measurement means 104 and the charge measurement means 105 used in FIG. 7 are apparatuses in which the pre-measurement charge stage 71 and the measurement stage 81 and the pre-measurement charge stage 72 and the measurement stage 82 are integrated. The distance is a distance between adjacent workpiece storage holes 4.

  As described above, when measuring the leakage current of the capacitor having a large main capacity, the charge measuring means 102 and 103 are used. However, the charge measuring means 102 and 103 are replaced with the charge measuring means 104 and 105, and the transfer table 3 is used. By setting the unit of intermittent rotation to be the same as the interval between the work storage holes 4, the measurement of the leakage current of the capacitor having a small main capacity can be completed for one turn of the transfer table 3 as shown in FIG. it can.

  Here, a comparison is made between the dielectric absorption time and the processing capability when measuring the leakage current of a capacitor having a large main capacity (FIG. 6) and when measuring the leakage current of a capacitor having a small main capacity (FIG. 8). As a numerical example, as in the first embodiment, the stop time of the transfer table 3 is 10 ms, and the work movement time required for one intermittent rotation is 15 ms.

In the case of FIG. 6, there are 26 stop positions from the charging stage 61 (housing hole position (4)) to the measuring stage 82 (housing hole position (23)) and the intermittent rotation is 25 times. The time required until that is the dielectric absorption time t3 is
t3 = 10 ms × 26 + 15 ms × 25
= 635ms
It becomes. In addition, since the time required for the work to pass through each stage 6-8 is the sum of the work stop time and the movement time, the number of work processes per minute, that is, the processing capacity a3,
a3 = 60000 ms / (10 ms + 15 ms)
= 2400.

On the other hand, in the case of FIG. 8, there are 20 stop positions from the charging stage 61 (storage hole position (4)) to the measurement stage 82 (storage hole position (23)), and the intermittent rotation is 19 times. The time required from 61 to the measurement stage 82, that is, the dielectric absorption time t4 is
t4 = 10 ms × 20 + 15 ms × 19
= 485ms
It becomes. In addition, the number of workpieces processed per minute, that is, the processing capacity a4,
a4 = 60000 ms / (10 ms + 15 ms)
= 2400.

  From the above, when FIG. 6 is compared with FIG. 8, the processing capability is the same, but the dielectric absorption time is longer in FIG. 6, and FIG. 6 shows the case where the capacitance is large and the dielectric absorption time is long. It can be seen that FIG. 8 is suitable when the capacitance of the capacitor is small and the dielectric absorption time is short.

  As described above, in the second embodiment, in addition to the effects of the first embodiment, the capacitor table 3 is rotated three times to measure the capacitor leakage current, so that the dielectric absorption time is longer than that of the first embodiment. There is an effect that can be done.

(Third embodiment)
In the third embodiment, a capacitor leakage current measurement is performed by adding one charging stage 6 to the first embodiment.

  FIG. 9 is a plan view of a capacitor leakage current measuring apparatus according to the third embodiment of the present invention. Components that are the same as those in FIG. 1 are denoted by the same reference numerals, and the differences from FIG. 1 will be mainly described below.

  In the present embodiment, the total number of workpiece storage holes 4 is 13, and the positions of the workpiece storage holes 4 are represented by (1) to (13).

  The separation supply unit 2 is disposed at the position (1). Unlike FIG. 1, FIG. 9 includes two charging stages 611 and 612. Charging stages 611 and 612 are arranged at positions (3) and (6), respectively. The pre-measurement charging stage 7 and the measurement stage 8 are arranged at positions (8) and (10), respectively. The interval between the pre-measurement charging stage 7 and the measurement stage 8 is separated by twice the interval between the workpiece storage holes 4. The discharge stage 9 is disposed at the position (12).

  In the conveyance pitch adjusting means 10, the conveyance table 3 is intermittently rotated around the central axis 5 counterclockwise (in the R direction in the drawing) in units of twice the interval between the work storage holes 4 as in FIG. 1. Adjust the conveyance pitch.

  Next, the processing operation of the third embodiment will be described. In FIG. 9, the case where all of the workpiece storage holes 4 are empty is defined as an initial state. In the initial state, it is assumed that a work storage hole 4 is at the position (1) of the separation supply unit 2 and a work is stored. When the transfer table 3 rotates intermittently, the workpiece storage hole 4 in which the workpiece is stored stops at a position where it increases by 2 with respect to the position (1) as in the positions (3), (5), and (7). In addition, after the position (13), it stops at the position (2), and then stops intermittently at two different positions such as the positions (4), (6) and (8).

  Here, since the total number of the work storage holes 4 is 13, and the unit in which the transfer table 3 rotates intermittently is twice the interval between the work storage holes 4, the work storage holes 4 in which the work is stored at the position (1). Returns to the position (1) again when the transport table 3 rotates twice. That is, the work stored in the work storage hole 4 is charged at the charging stage 611 (position (3)) and then rotated more than one turn on the transfer table 3, and then the charging stage 612 (position (6)). And then recharged at the pre-measurement charging stage 7 (position (8)), subsequently the leakage current is measured at the measurement stage 8 (position (10)), and then the discharge stage 9 (position (12) )).

  Thereby, the moving distance of the workpiece from the charging stage 611 to the charging stage 612 can be made larger than one round of the transfer table 3. Therefore, it is possible to ensure a long dielectric absorption time for charging the dielectric absorption factor until the leakage current region is reached, and it is possible to accurately measure the leakage current of a capacitor having a large main capacity.

  FIG. 10 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 10 shows the types of workpieces stored in the first round of the transfer table 3 and the types of workpieces stored in the second round and processing at each of the workpiece storage hole positions (1) to (13). Indicates the stage name. FIG. 10 shows an example in which the transfer table 3 rotates intermittently from the first round to the second round in the order of the work storage hole positions (1) to (13). That is, the time passes in the order of the first hole storage hole position (1) to the first rotation storage hole position (13), the second rotation storage hole position (1) to the second rotation storage hole position (13). Then, after the second hole of the storage hole position (13), it returns to the first hole of the storage hole position (1).

  First, the workpiece is supplied to the workpiece storage hole 4 at the storage hole position (1) with respect to the transfer table 3 in the initial state where all the workpiece storage holes 4 are empty. This is indicated by “X” in the storage hole position (1) in the first round in FIG. In FIG. 10, the stage name corresponding to the storage hole position (1) is “storage”. This indicates that the separation supply unit 2 of FIG. 9 exists at the storage hole position (1).

  When the conveyance table 3 rotates once for a while, the work reaches the accommodation hole position (3) in FIG. In FIG. 10, the stage name corresponding to the storage hole position (3) is “charge 1”, which indicates that the charge stage 611 in FIG. 9 exists at the storage hole position (3). The workpiece is charged at this charging stage 611. At this time, the next workpiece is stored in the workpiece storage hole 4 at the storage hole position (1). The work storage hole 4 at the storage hole position (2) is “empty” in FIG. 10, which indicates that the work has not been stored yet. As will be described later, the first work is stored in the work storage hole 4 at the storage hole position (1) in the second round.

  The distance from the charging stage 611 to the charging stage 612 is separated by a distance obtained by rotating the transfer table 3 more than one turn. That is, in FIG. 10, the position at which the work stops next to the first hole storage hole position (3) corresponding to the charging stage 611 is the first hole storage hole position (5). Further, a charging stage 612 is provided at a position rotated more than one round. The position is the storage hole position (6) in the second round, and the corresponding stage name in FIG. 10 is “charge 2”. That is, the movement distance of the workpiece from the charging stage 611 to the charging stage 612 is from the first hole of the storage hole position (3) to the second hole of the storage hole position (6). It is spinning more. While moving from the charging stage 611 to the charging stage 612, the dielectric absorption factor inside the capacitor is charged.

  After the work that has reached the charging stage 612 is charged again, it reaches the storage hole position (8). In FIG. 10, the stage name corresponding to the storage hole position (8) is “charge before measurement”. This indicates that the pre-measurement charging stage 7 exists at the storage hole position (8).

  In the pre-measurement charging stage 7, the main capacity of the work is fully charged. Thereafter, the transfer table 3 is rotated intermittently, and the workpiece reaches the storage hole position (10). In FIG. 10, the stage name corresponding to the storage hole position (10) is “measurement”. This indicates that the measurement stage 8 in FIG. 9 exists at the storage hole position (10). The leakage current is measured at the measurement stage 8, and the charge charged in the workpiece after the measurement is discharged.

  Then, the conveyance table 3 is intermittently rotated, and the work reaches the storage hole position (12). In FIG. 10, the stage name corresponding to the storage hole position (12) is “discharge”. This indicates that the discharge stage 9 in FIG. 9 exists at the storage hole position (12). The work is discharged at the discharge stage 9, and the empty work storage hole 4 again reaches the same storage hole position (1) as the first round, and a new work is stored by the separation supply unit 2.

  Thus, when the conveyance table 3 makes two rounds, the workpiece storage hole 4 returns to the original position. Note that “Y” in FIG. 10 indicates that the workpiece is stored in the second round in the storage hole position where the workpiece is not stored in the first round. The processing content of the workpiece corresponding to this “Y” is not shown in FIG. 10, but the workpiece storage hole 4 discharged from the workpiece storage hole 4 at the storage hole position (12) on the third round and empty. Although not shown in FIG. 10, a new work is stored at the storage hole position (1) on the fourth round.

  Further, the shaded portion in FIG. 10 indicates the corresponding position between the workpiece and each stage name. The stage names are arranged in the order of processes from top to bottom, that is, as time passes. For this reason, when the main capacity of the capacitor is small and no time is required from the charging stage 611 to the charging stage 612, that is, when all the steps can be completed while the conveying table 3 makes one round, the intermediate of the conveying table 3 is used. By making the unit of rotation the same as the interval between adjacent workpiece storage holes 4, the transfer table 3, the separation supply unit 2 (storage stage), the charging stages 611 and 612, the pre-measurement charging stage 7, the measurement stage 8 and the discharge Equipment such as stage 9 can be shared.

  However, when the main capacity of the capacitor is small, the distance from the pre-measurement charging stage 7 to the measurement stage 8 is set to a distance corresponding to one intermittent rotation of the transfer table 3. Specifically, when the main capacity of the capacitor is large and the unit of intermittent rotation is twice the interval between the workpiece storage holes 4, the main capacity of the capacitor is small and the unit of intermittent rotation is the same as the interval between the workpiece storage holes 4. In this case, the distance between the pre-measurement charging stage 7 and the measurement stage 8 is changed.

  Thus, as in the first embodiment, two types of devices are prepared in which the measurement stage 8 and the pre-measurement charge stage 7 disposed immediately before the measurement stage 8 are integrated, one of which is a pre-measurement charge stage than the other. The distance between 7 and the measurement stage 8 is increased. Thus, depending on whether or not the main capacity of the capacitor is large, the leakage currents of both the large and small capacitors can be accurately measured by simply replacing this device.

  As a specific example, the embodiment shown in FIG. 9 and FIG. 10 is the same as the case where the main capacity of the capacitor is small, that is, the unit of intermittent rotation of the transfer table 3 is the same as the interval between the adjacent work storage holes 4. A method for performing measurement during one round is shown below.

  FIG. 11 is a modification of FIG. 9 and is a plan view of a capacitor leakage current measuring apparatus that measures the leakage current of a capacitor having a small main capacity. The conveyance pitch adjusting means 10 selects one of a charge measurement means 106 or a charge measurement means 107, which will be described later, according to the capacity of the capacitor, and sets the conveyance pitch for intermittently rotating the conveyance table 3 to the interval between the workpiece accommodation holes 4. Adjust as a unit.

  FIG. 12 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 12 shows an example in which the leakage current is measured while the conveyance table 3 makes one round, and the unit of intermittent rotation of the conveyance table 3 coincides with the interval between the work storage holes 4. Therefore, when the operation is started from the initial state where all the workpiece storage holes 4 are empty, the workpieces are stored in all the workpiece storage holes 4 while the transfer table 3 makes one round as indicated by “X”. Below, it demonstrates centering on difference with FIG. 3 and FIG.

  The charge measurement means 106 used in FIG. 9 is an apparatus in which the pre-measurement charge stage 7 and the measurement stage 8 are integrated, and the distance between them is twice the distance between the adjacent workpiece storage holes 4. On the other hand, the charge measurement means 107 used in FIG. 11 is an apparatus in which the pre-measurement charge stage 7 and the measurement stage 8 are integrated, and the distance between them is the distance between the adjacent workpiece storage holes 4.

  As described above, when measuring the leakage current of the capacitor having a large main capacity, the charge measuring means 106 is used. However, the charge measuring means 106 is replaced with the charge measuring means 107 and the unit of intermittent rotation of the transport table 3 is set as a work piece. By making it the same as the interval between the storage holes 4, the measurement of the leakage current of the capacitor having a small main capacity can be completed in one round of the transfer table 3 as shown in FIG.

  Here, a comparison is made between the dielectric absorption time and the processing capability when measuring the leakage current of a capacitor having a large main capacitance (FIG. 10) and when measuring the leakage current of a capacitor having a small main capacitance (FIG. 12). As a numerical example, as in the first embodiment, the stop time of the transfer table 3 is 10 ms, and the work movement time required for one intermittent rotation is 15 ms.

In the case of FIG. 10, since the stop position from the charging stage 611 (accommodating hole position (3)) to the measuring stage 8 (accommodating hole position (10)) is 11 places and the intermittent rotation is 10 times, the charging stage 611 to the measuring stage 8 The time required until that is the dielectric absorption time t5 is
t5 = 10 ms × 11 + 15 ms × 10
= 260 ms
It becomes. Further, since the time required for the work to pass through each stage 6-8 is the sum of the work stop time and the movement time, the number of work processes per minute, that is, the processing capacity a5 is
a5 = 60,000 ms / (10 ms + 15 ms)
= 2400.

On the other hand, in the case of FIG. 12, there are 8 stop positions from the charging stage 611 (housing hole position (3)) to the measurement stage 8 (housing hole position (10)), and the intermittent rotation is 7 times. The required time from 611 to the measurement stage 8, that is, the dielectric absorption time t6 is
t6 = 10 ms × 8 + 15 ms × 7
= 185ms
It becomes. Also, the number of workpieces processed per minute, that is, the processing capacity a6,
a6 = 60000 ms / (10 ms + 15 ms)
= 2400.

  From the above, when FIG. 10 is compared with FIG. 12, the processing capability is the same, but the dielectric absorption time is longer in FIG. 10, and FIG. 10 shows the case where the capacitance of the capacitor is large and the dielectric absorption time is long. It can be seen that FIG. 12 is suitable when the capacitance of the capacitor is small and the dielectric absorption time is short.

  Thus, in the third embodiment, in addition to the effects of the first embodiment, charging is performed using two charging stages, so that the main capacitance and the dielectric absorption factor of the capacitor can be more reliably charged. There is an effect that can.

(Fourth embodiment)
In the fourth embodiment, two combinations of the charging stages 611 and 612, the pre-measurement charging stage 7 and the measurement stage 8 in the third embodiment are arranged in series, and the conveyance table 3 is rotated three times to cause a capacitor leakage current. The measurement is performed.

  FIG. 13 is a plan view of a capacitor leakage current measuring apparatus according to the fourth embodiment of the present invention. The same components as those in FIG. 9 of the third embodiment are denoted by the same reference numerals, and the differences from FIG. 9 will be mainly described below.

  In the present embodiment, the total number of workpiece storage holes 4 is 34, and the positions of the workpiece storage holes 4 are represented by (1) to (34).

  The separation supply unit 2 is disposed at the position (1). Unlike FIG. 9, FIG. 13 includes four charging stages 611, 612, 621, 622, two pre-measurement charging stages 71, 72, and measurement stages 81, 82. Charging stages 611, 612, 621, and 622 are disposed at positions (4), (9), (18), and (23), respectively. The pre-measurement charging stages 71 and 72 are arranged at positions (12) and (26), respectively. Measurement stages 81 and 82 are arranged at positions (15) and (29), respectively. The interval between the pre-measurement charging stage 71 and the measurement stage 81 and the interval between the pre-measurement charging stage 72 and the measurement stage 82 are separated from each other by three times the interval between the workpiece storage holes 4. The discharge stage 9 is disposed at the position (32).

  The conveyance pitch adjusting means 10 adjusts the conveyance pitch so that the conveyance table 3 rotates intermittently around the central axis 5 in the counterclockwise direction (R direction shown in the drawing) in units of three times the interval between the work storage holes 4. To do.

  Next, the processing operation of the fourth embodiment will be described. In FIG. 13, the case where all of the workpiece storage holes 4 are empty is defined as an initial state. In the initial state, it is assumed that a work storage hole 4 is at the position (1) of the separation supply unit 2 and a work is stored. When the transport table 3 rotates intermittently, the workpiece storage hole 4 in which the workpiece is stored stops at a position where the workpiece table 3 increases by 3 with respect to the position (1) as in the positions (4), (7), and (10). Further, after the position (34), it stops at the position (3), and then stops intermittently at different positions such as positions (6), (9) and (12).

  Here, since the total number of the work storage holes 4 is 34 and the unit in which the transfer table 3 rotates intermittently is three times the interval between the work storage holes 4, the work storage holes 4 in which the work is stored at the position (1). Returns to the position (1) again when the transport table 3 rotates three times. That is, the work stored in the work storage hole 4 is charged at the charging stage 611 (position (4)) and then rotated more than one turn on the transfer table 3, and then the charging stage 612 (position (9)). And then recharged at the pre-measurement charging stage 71 (position (12)), and subsequently the leakage current is measured at the measurement stage 81 (position (15)). Thereafter, in the same procedure, after charging at the charging stage 621 (position (18)), after being rotated more than one turn at the transfer table 3, it is recharged at the charging stage 622 (position (23)), and then Then, recharging is performed at the pre-measurement charging stage 72 (position (26)), the leakage current is subsequently measured at the measurement stage 82 (position (29)), and then discharged from the discharge stage 9 (position (32)). .

  Thereby, the moving distance of the workpiece from the charging stage 611 to the charging stage 612 and the moving distance of the workpiece from the charging stage 621 to the charging stage 622 can be made larger than one turn of the transfer table 3. Therefore, it is possible to ensure a long dielectric absorption time for charging the dielectric absorption factor until the leakage current region is reached, and it is possible to accurately measure the leakage current of a capacitor having a large main capacity.

  FIG. 14 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 14 shows the types of workpieces stored in the first round of the transport table 3 at the positions (1) to (34) of the workpiece storage holes, the types of workpieces stored in the second round, and the third round. This represents the type of workpiece to be stored and the stage name to be processed. FIG. 14 shows an example in which the transport table 3 rotates intermittently from the first round to the third round in the order of the work storage hole positions (1) to (34). That is, the first hole storage hole position (1) to the first rotation storage hole position (34), the second rotation storage hole position (1) to the second rotation storage hole position (34), the third rotation The time elapses in the order of the storage hole positions (1) to (34), and after the storage hole position (34) of the third round, the position returns to the storage hole position (1) of the first round.

  First, the workpiece is supplied to the workpiece storage hole 4 at the storage hole position (1) with respect to the transfer table 3 in the initial state where all the workpiece storage holes 4 are empty. This is indicated by “X” in the storage hole position (1) in the first round in FIG. In FIG. 14, the stage name corresponding to the storage hole position (1) is “storage”. This indicates that the separation supply unit 2 of FIG. 13 exists at the storage hole position (1).

  When the transfer table 3 rotates once for a while, the work reaches the storage hole position (4) in FIG. In FIG. 14, the stage name corresponding to the storage hole position (4) is “charge 11”. This indicates that the charging stage 611 in FIG. 13 exists at the storage hole position (4). The workpiece is charged at this charging stage 611. At this time, the next workpiece is stored in the workpiece storage hole 4 at the storage hole position (1). The work storage hole 4 at the storage hole positions (2) and (3) is “empty” in FIG. 14, which indicates that the work has not been stored yet. As will be described later, the workpiece storage hole 4 stores the first workpiece at the storage hole position (1) of the second and third rounds.

  The distance from the charging stage 611 to the charging stage 612 is separated by a distance obtained by rotating the transfer table 3 more than one turn. That is, in FIG. 14, the position where the work stops after the first hole storage hole position (4) corresponding to the charging stage 611 is the first hole storage hole position (7). Further, a charging stage 612 is provided at a position rotated more than one turn. The position is the second hole storage hole position (9), and the corresponding stage name in FIG. 14 is “charge 12”. That is, the moving distance of the workpiece from the charging stage 611 to the charging stage 612 is from the first hole storage hole position (4) to the second rotation storage hole position (9), during which the transfer table 3 is rotated by one turn. It is spinning more. While moving from the charging stage 611 to the charging stage 612, the dielectric absorption factor inside the capacitor is charged.

  The work that has reached the charging stage 612 is charged again and then reaches the storage hole position (12). In FIG. 14, the stage name corresponding to the storage hole position (12) is “charge 1 before measurement”. This indicates that the pre-measurement charging stage 71 in FIG. 13 exists in the storage hole position (12).

  In the pre-measurement charging stage 71, the main capacity of the work is fully charged. Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (15). In FIG. 14, the stage name corresponding to the storage hole position (15) is “measurement 1”. This indicates that the measurement stage 81 in FIG. 13 exists at the storage hole position (15). The leakage current is measured at the measurement stage 81, and the charge charged on the workpiece after the measurement is discharged.

  Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (18). In FIG. 14, the stage name corresponding to the storage hole position (18) is “charge 21”. This indicates that the charging stage 621 in FIG. 13 exists at the storage hole position (18). The workpiece is charged again at this charging stage 621.

  The distance from the charging stage 621 to the charging stage 622 is separated by a distance obtained by rotating the transfer table 3 more than one turn. That is, in FIG. 14, the position at which the work stops after the second-round storage hole position (18) corresponding to the charging stage 621 is the second-round storage hole position (21). Further, a charging stage 622 is provided at a position rotated more than one turn. The position is the third hole storage hole position (23), and the corresponding stage name in FIG. 14 is “charge 22”. In other words, the moving distance of the workpiece from the charging stage 621 to the charging stage 622 is from the second hole storage hole position (18) to the third rotation storage hole position (23), during which the transfer table 3 is one turn. It is spinning more. While moving from the charging stage 621 to the charging stage 622, the dielectric absorption factor inside the capacitor is charged.

  The work that has reached the charging stage 622 is charged again and then reaches the storage hole position (26). In FIG. 14, the stage name corresponding to the storage hole position (26) is “charge before measurement 2”. This indicates that the pre-measurement charging stage 72 in FIG. 13 exists at the storage hole position (26).

  In the pre-measurement charging stage 72, the main capacity of the work is fully charged. Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (29). In FIG. 14, the stage name corresponding to the storage hole position (29) is “measurement 2”. This indicates that the measurement stage 82 in FIG. 13 exists at the storage hole position (29). The measurement of the second leakage current is performed at the measurement stage 82, and the charge charged in the workpiece after the measurement is discharged.

  Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (32). In FIG. 14, the stage name corresponding to the storage hole position (32) is “discharge”. This indicates that the discharge stage 9 in FIG. 13 exists in the storage hole position (32). The work is discharged at the discharge stage 9, and the empty work storage hole 4 again reaches the same storage hole position (1) as the first round, and a new work is stored by the separation supply unit 2.

  As described above, when the transfer table 3 rotates three times, the workpiece storage hole 4 returns to the original position. Note that “Y” and “Z” in FIG. 14 indicate that the workpiece is not stored in the first round (it does not stop at the storage hole position (1) in the first round). It indicates that the workpiece is stored at the eye storage hole position (1). The workpieces corresponding to “Y” and “Z” are not shown in FIG. 14, but are discharged from the workpiece storage holes 4 at the storage hole positions (32) on the fourth and fifth laps, respectively, and become empty. Although not shown in FIG. 14, new workpieces are stored in the workpiece storage holes 4 at the storage hole positions (1) on the fifth and sixth laps, respectively.

  In FIG. 14, the shaded portion indicates the corresponding position between the workpiece and each stage name. The stage names are arranged in the order of processes from top to bottom, that is, as time passes. For this reason, when the main capacity of the capacitor is small and no time is required from the charging stage 611 to the charging stage 612 and from the charging stage 621 to the charging stage 622, that is, the entire process is completed while the transfer table 3 is rotated once. When possible, the unit of intermittent rotation of the transfer table 3 is set to be the same as the interval between the adjacent workpiece storage holes 4, so that the transfer table 3, the separation supply unit 2 (storage stage), the charging stages 611, 612, 621. 622, pre-measurement charging stages 71 and 72, measurement stages 81 and 82, and discharge stage 9 can be shared.

  However, when the main capacity of the capacitor is small, the distance from the pre-measurement charging stage 71 to the measurement stage 81 and the distance from the pre-measurement charging stage 72 to the measurement stage 82 are set to a distance corresponding to one intermittent rotation of the transfer table 3. . Specifically, when the main capacity of the capacitor is large and the unit of intermittent rotation is three times the interval between the workpiece storage holes 4, the main capacity of the capacitor is small and the unit of intermittent rotation is the same as the interval between the workpiece storage holes 4. In this case, the distance between the pre-measurement charging stage 71 and the measurement stage 81 and the distance between the pre-measurement charging stage 72 and the measurement stage 82 are changed.

  Therefore, as in the third embodiment, the measurement stage 81 and the pre-measurement charging stage 71 disposed immediately before the measurement stage 81 and the measurement stage 82 and the pre-measurement charging stage 72 disposed immediately before are integrated. Are prepared, and one of them is wider than the other in the distance between the pre-measurement charging stage 71 and the measurement stage 81 and between the pre-measurement charging stage 72 and the measurement stage 82. Thus, depending on whether or not the main capacity of the capacitor is large, the leakage currents of both the large and small capacitors can be measured simply by replacing this device.

  As a specific example, the present embodiment shown in FIGS. 13 and 14 is the same as the case where the main capacity of the capacitor is small, that is, the unit of intermittent rotation of the transfer table 3 is the same as the interval between the adjacent work storage holes 4. A method for performing measurement during one round is shown below.

  FIG. 15 is a plan view of a capacitor leakage current measuring apparatus which is a modification of FIG. 13 and measures the leakage current of a capacitor having a small main capacity. The transport pitch adjusting unit 10 selects one of a charge measuring unit 108 and a charge measuring unit 109, or a charge measuring unit 110 and 111, which will be described later, according to the capacity of the capacitor, and intermittently rotates the transport table 3. The conveyance pitch is adjusted with the interval between the work storage holes 4 as a unit.

  FIG. 16 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 16 shows an example in which the leakage current is measured while the transfer table 3 makes one round, and the unit of intermittent rotation of the transfer table 3 matches the interval of the work storage holes 4. Therefore, when the operation is started from the initial state where all the workpiece storage holes 4 are empty, the workpieces are stored in all the workpiece storage holes 4 while the transfer table 3 makes one round as indicated by “X”. Below, it demonstrates centering on difference with 3rd Embodiment.

  The charging measurement means 108 and 109 used in FIG. 13 are apparatuses in which the pre-measurement charging stage 71 and the measurement stage 81, and the pre-measurement charging stage 72 and the measurement stage 82 are integrated, and the distance between them is the adjacent workpiece storage hole 4. 3 times the distance between. On the other hand, the charge measurement means 110 and 111 used in FIG. 15 are apparatuses in which the pre-measurement charge stage 71 and the measurement stage 81 and the pre-measurement charge stage 72 and the measurement stage 82 are integrated, and their distances are adjacent to each other. It is the distance between the workpiece | work storage holes 4 to perform.

  As described above, when measuring the leakage current of the capacitor having a large main capacity, the charge measuring means 108 and 109 are used. However, the charge measuring means 108 and 109 are replaced with the charge measuring means 110 and 111, and the transfer table 3 is used. By setting the unit of intermittent rotation to be the same as the interval between the work storage holes 4, the measurement of the leakage current of the capacitor having a small main capacity can be completed for one turn of the transfer table 3 as shown in FIG. it can.

  Here, a comparison is made between the dielectric absorption time and the processing capability when measuring the leakage current of a capacitor having a large main capacity (FIG. 14) and when measuring the leakage current of a capacitor having a small main capacity (FIG. 16). As a numerical example, as in the first embodiment, the stop time of the transfer table 3 is 10 ms, and the work movement time required for one intermittent rotation is 15 ms.

In the case of FIG. 14, since the stop position from the charging stage 611 (accommodating hole position (4)) to the measuring stage 82 (accommodating hole position (29)) is 32 places and the intermittent rotation is 31 times, the charging stage 611 to the measuring stage 82 are performed. The time required until that is the dielectric absorption time t7 is
t7 = 10 ms × 32 + 15 ms × 31
= 785ms
It becomes. Further, since the time required for the work to pass through each stage 6 to 8 is the sum of the work stop time and the movement time, the number of work processes per minute, that is, the processing capacity a7 is
a7 = 60000 ms / (10 ms + 15 ms)
= 2400.

On the other hand, in the case of FIG. 16, there are 26 stop positions from the charging stage 611 (housing hole position (4)) to the measurement stage 8 (housing hole position (29)), and the intermittent rotation is 25 times. The required time from 611 to the measurement stage 82, that is, the dielectric absorption time t8 is
t8 = 10 ms × 26 + 15 ms × 25
= 635ms
It becomes. The number of workpieces processed per minute, that is, the processing capacity a8 is
a8 = 60000 ms / (10 ms + 15 ms)
= 2400.

  From the above, when FIG. 14 is compared with FIG. 16, the processing capability is the same, but the dielectric absorption time is longer in FIG. 14, and FIG. 14 shows the case where the capacitance of the capacitor is large and the dielectric absorption time is long. It can be seen that FIG. 16 is suitable when the capacitance of the capacitor is small and the dielectric absorption time is short.

  As described above, in the fourth embodiment, in addition to the effect of the third embodiment, the capacitor leakage current measurement is performed by rotating the transport table 3 three times, so that the dielectric absorption time can be further increased.

(Fifth embodiment)
In the fifth embodiment, the capacitor leakage current is measured by rotating the transport table 3 three times in the first embodiment.

  FIG. 17 is a plan view of a capacitor leakage current measuring apparatus according to the fifth embodiment of the present invention. Components that are the same as those in FIG. 1 are denoted by the same reference numerals, and the differences from FIG. 1 will be mainly described below.

  In the present embodiment, the total number of workpiece storage holes 4 is 16, and the positions of the workpiece storage holes 4 are represented by (1) to (16).

  The separation supply unit 2 is disposed at the position (1). The charging stage 6 is disposed at the position (4). The pre-measurement charging stage 7 and the measurement stage 8 are arranged at positions (8) and (11), respectively. The interval between the pre-measurement charging stage 7 and the measurement stage 8 is separated by three times the interval between the workpiece storage holes 4. The discharge stage 9 is disposed at the position (14).

  The conveyance pitch adjusting means 10 adjusts the conveyance pitch so that the conveyance table 3 rotates intermittently around the central axis 5 in the counterclockwise direction (R direction shown in the drawing) in units of three times the interval between the work storage holes 4. To do.

  Next, the processing operation of the fifth embodiment will be described. In FIG. 17, the case where all the work storage holes 4 are empty is defined as an initial state. In the initial state, it is assumed that a work storage hole 4 is at the position (1) of the separation supply unit 2 and a work is stored. When the transport table 3 rotates intermittently, the workpiece storage hole 4 in which the workpiece is stored stops at a position that increases by 3 with respect to the position (1) as in the positions (4), (7), and (11). Further, after the position (16), it stops at the position (3), and then stops intermittently at three different positions such as positions (6), (9), and (12).

  Here, since the total number of the work storage holes 4 is 16, and the unit in which the transfer table 3 rotates intermittently is three times the interval between the work storage holes 4, the work storage holes 4 in which the work is stored at the position (1). Returns to the position (1) again when the transport table 3 rotates three times. That is, the workpiece stored in the workpiece storage hole 4 is charged at the charging stage 6 (position (4)) and then rotated more than two rounds on the transfer table 3, and then the pre-measurement charging stage 7 (position (8) )), And then the leakage current is measured at the measurement stage 8 (position (11)) and then discharged from the discharge stage 9 (position (14)).

  Thereby, the moving distance of the workpiece from the charging stage 6 to the pre-measurement charging stage 7 can be made larger than one rotation of the transfer table 3. Therefore, it is possible to ensure a long dielectric absorption time for charging the dielectric absorption factor until the leakage current region is reached, and it is possible to accurately measure the leakage current of a capacitor having a large main capacity.

  FIG. 18 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 18 shows the types of workpieces stored in the first round of the transport table 3 at the positions (1) to (16) of the workpiece storage holes, the types of workpieces stored in the second round, and the third round. This represents the type of workpiece to be stored and the stage name to be processed. FIG. 18 shows an example in which the transfer table 3 rotates intermittently from the first round to the third round in the order of the work storage hole positions (1) to (16). That is, the first hole storage hole position (1) to the first rotation storage hole position (16), the second rotation storage hole position (1) to the second rotation storage hole position (16), the third rotation The time elapses in the order of the storage hole position (1) to the storage hole position (16) of the third round, and the next of the storage hole position (16) of the third round returns to the storage hole position (1) of the first round.

  First, the workpiece is supplied to the workpiece storage hole 4 at the storage hole position (1) with respect to the transfer table 3 in the initial state where all the workpiece storage holes 4 are empty. This is indicated by “X” in the storage hole position (1) in the first round in FIG. In FIG. 18, the stage name corresponding to the storage hole position (1) is “storage”. This indicates that the separation supply unit 2 of FIG. 17 exists at the storage hole position (1).

  When the transfer table 3 rotates once for a while, the work reaches the storage hole position (4) in FIG. In FIG. 18, the stage name corresponding to the storage hole position (4) is “charge”. This indicates that the charging stage 6 in FIG. 17 exists at the storage hole position (4). The workpiece is charged at the charging stage 6. At this time, the next workpiece is stored in the workpiece storage hole 4 at the storage hole position (1). The work storage hole 4 at the storage hole positions (2) and (3) is “empty” in FIG. 18, which indicates that no work has been stored yet. As will be described later, the workpiece storage hole 4 stores the first workpiece at the storage hole position (1) of the second and third rounds.

  The distance from the charging stage 6 to the pre-measurement charging stage 7 is separated by a distance obtained by rotating the transfer table 3 more than two rounds. That is, in FIG. 18, the position where the work stops after the first-round storage hole position (4) corresponding to the charging stage 6 is the first-round storage hole position (7). Further, a pre-measurement charging stage 7 is provided at a position rotated more than two rounds. The position is the third hole storage hole position (8), and the corresponding stage name in FIG. 18 is “charge before measurement”. That is, the moving distance of the workpiece from the charging stage 6 to the pre-measurement charging stage 7 is from the first hole storage hole position (4) to the third rotation storage hole position (8). It is rotating more than the circumference. While moving from the charging stage 6 to the pre-measurement charging stage 7, the dielectric absorption factor inside the capacitor is charged.

  In the pre-measurement charging stage 7, the main capacity of the work is fully charged. Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (11). In FIG. 18, the stage name corresponding to the storage hole position (11) is “measurement”. This indicates that the measurement stage 8 in FIG. 17 exists at the storage hole position (11). The leakage current is measured at the measurement stage 8, and the charge charged in the workpiece after the measurement is discharged.

  Thereafter, the transfer table 3 is rotated intermittently, and the work reaches the storage hole position (14). In FIG. 18, the stage name corresponding to the storage hole position (14) is “discharge”. This indicates that the discharge stage 9 in FIG. 17 exists at the storage hole position (14). The work is discharged at the discharge stage 9, and the empty work storage hole 4 again reaches the same storage hole position (1) as the first round, and a new work is stored by the separation supply unit 2.

  As described above, when the transfer table 3 rotates three times, the workpiece storage hole 4 returns to the original position. Note that “Y” and “Z” in FIG. 18 indicate that the workpiece is stored in the second and third laps in the storage hole position where the workpiece is not stored in the first lap. The workpieces corresponding to “Y” and “Z” are not shown in FIG. 18, but are discharged from the workpiece storage holes 4 at the storage hole positions (14) on the fourth and fifth laps, respectively, and become empty. Although not shown in FIG. 18, a new workpiece is stored in the workpiece storage hole 4 at the storage hole position (1) on the fifth and sixth laps.

  In FIG. 18, the shaded portion indicates the corresponding position between the workpiece and each stage name. The stage names are arranged in the order of processes from top to bottom, that is, as time passes. For this reason, when the main capacity of the capacitor is small and no time is required from the charging stage 6 to the pre-measurement charging stage 7, that is, when the entire process can be completed while the conveying table 3 makes one round, the conveying table 3 By making the intermittent rotation unit the same as the interval between the adjacent workpiece storage holes 4, the transfer table 3, the separation supply unit 2 (storage stage), the charging stage 6, the pre-measurement charging stage 7, the measurement stage 8 and Equipment such as the discharge stage 9 can be shared.

  However, when the main capacity of the capacitor is small, the distance from the pre-measurement charging stage 7 to the measurement stage 8 is set to a distance corresponding to one intermittent rotation of the transfer table 3. Specifically, when the main capacity of the capacitor is large and the unit of intermittent rotation is three times the interval between the workpiece storage holes 4, the main capacity of the capacitor is small and the unit of intermittent rotation is the same as the interval between the workpiece storage holes 4. In this case, the distance between the pre-measurement charging stage 7 and the measurement stage 8 is changed.

  Thus, as in the first embodiment, two types of devices are prepared in which the measurement stage 8 and the pre-measurement charge stage 7 disposed immediately before the measurement stage 8 are integrated, one of which is a pre-measurement charge stage than the other. The distance between 7 and the measurement stage 8 is increased. By simply replacing this device, it is possible to accurately measure the leakage currents of both large and small capacitors.

  As a specific example, the embodiment shown in FIG. 17 and FIG. 18 is the same as the case where the main capacity of the capacitor is small, that is, the unit of intermittent rotation of the transfer table 3 is the same as the interval between the adjacent work storage holes 4. A method for performing measurement during one round is shown below.

  FIG. 19 is a modification of FIG. 17 and is a plan view of a capacitor leakage current measuring apparatus that measures the leakage current of a capacitor having a small main capacity. The conveyance pitch adjusting means 10 selects one of a charge measurement means 112 or a charge measurement means 113 described later according to the capacity of the capacitor, and sets the conveyance pitch for intermittently rotating the conveyance table 3 to the interval between the workpiece accommodation holes 4. Adjust as a unit.

  FIG. 20 is a diagram showing a processing operation of the capacitor leakage current measuring apparatus of FIG. FIG. 20 shows an example in which the leakage current is measured while the conveyance table 3 makes one round, and the unit of intermittent rotation of the conveyance table 3 coincides with the interval between the work storage holes 4. Therefore, when the operation is started from the initial state where all the workpiece storage holes 4 are empty, the workpieces are stored in all the workpiece storage holes 4 while the transfer table 3 makes one round as indicated by “X”. Below, it demonstrates centering around difference with 1st Embodiment.

  The charge measurement means 112 used in FIG. 17 is an apparatus in which the pre-measurement charge stage 7 and the measurement stage 8 are integrated, and the distance between them is three times the distance between the adjacent workpiece storage holes 4. On the other hand, the charge measurement means 113 used in FIG. 19 is an apparatus in which the pre-measurement charge stage 7 and the measurement stage 8 are integrated, and the distance between them is the distance between the adjacent workpiece storage holes 4.

  As described above, when measuring the leakage current of the capacitor having a large main capacity, the charge measuring means 112 is used. However, the charge measuring means 112 is replaced with the charge measuring means 113 and the unit of intermittent rotation of the transfer table 3 is set as a work piece. By making it the same as the interval between the storage holes 4, the measurement of the leakage current of the capacitor having a small main capacity can be completed in one round of the transfer table 3 as shown in FIG.

  Here, a comparison is made between the dielectric absorption time and the processing capability when measuring the leakage current of a capacitor having a large main capacitance (FIG. 18) and when measuring the leakage current of a capacitor having a small main capacitance (FIG. 20). As a numerical example, as in the first embodiment, the stop time of the transfer table 3 is 10 ms, and the work movement time required for one intermittent rotation is 15 ms.

In the case of FIG. 18, there are 14 stop positions from the charging stage 6 (accommodating hole position (4)) to the measuring stage 8 (accommodating hole position (11)) and 13 intermittent rotations. The time required up to, that is, the dielectric absorption time t9 is
t9 = 10 ms × 14 + 15 ms × 13
= 335ms
It becomes. In addition, since the time required for the work to pass through each stage 6 to 8 is the sum of the work stop time and the movement time, the number of work processes per minute, that is, the processing capacity a9,
a9 = 60000 ms / (10 ms + 15 ms)
= 2400.

On the other hand, in the case of FIG. 20, there are 8 stop positions from the charging stage 6 (accommodating hole position (4)) to the measuring stage 8 (accommodating hole position (11)), and the intermittent rotation is 7 times. The required time from 6 to the measurement stage 8, that is, the dielectric absorption time t10 is
t10 = 10 ms × 8 + 15 ms × 7
= 185ms
It becomes. Also, the number of workpieces processed per minute, that is, the processing capacity a10,
a10 = 60,000 ms / (10 ms + 15 ms)
= 2400.

  From the above, comparing FIG. 18 and FIG. 20, the processing capability is the same, but the dielectric absorption time is longer in FIG. 18, and FIG. 18 shows the case where the capacity of the capacitor is large and the dielectric absorption time is long. It can be seen that FIG. 20 is suitable when the capacitance of the capacitor is small and the dielectric absorption time is short.

  As described above, in the fifth embodiment, in addition to the effects of the first embodiment, the capacitor table 3 is measured by rotating the transfer table 3 three times. Therefore, the dielectric absorption time is further increased as compared with the first embodiment. There is an effect that can be secured for a long time.

  In the above embodiment, as shown in FIGS. 2 and 4, FIGS. 6 and 8, FIGS. 10 and 12, FIGS. 14 and 16, and FIGS. 18 and 20, the main capacitance of the capacitor is large. Equipment such as the conveyance table 3 and the work storage hole 4 in the case where measurement is performed by rotating the conveyance table 3 more than two times can be shared with equipment in the case where the main capacity of the capacitor is small and measurement can be performed with one rotation of the conveyance table. . Since there are certain rules regarding the number of times of rotation of the transfer table 3, it will be described in detail below.

  First, the first embodiment will be described as an example. In the first embodiment, the moving distance of the workpiece from the charging stage 6 to the pre-measurement charging stage 7 is rotated more than one turn of the transfer table 3. That is, the extra number of turns of the transfer table 3 is one turn. Therefore, the total number of rounds of the transfer table 3 may be set to 2 rounds by adding one extra round to the basic round. Since the total number of rounds of the transfer table 3 corresponds to the number of columns in FIG. 2 and the like, the number of columns in FIG.

Next, it is necessary to determine how many times the distance between adjacent workpiece storage holes 4 should be set as the conveyance pitch (distance that the workpiece moves by one intermittent rotation of the conveyance table 3). The determination method is as follows. The transport pitch is B, and the distance between adjacent workpiece storage holes 4 is A.
B / A = number of columns in FIG.
It is. That is, in the first embodiment, the distance that the workpiece moves by one intermittent rotation of the transfer table 3 is twice the distance between the adjacent workpiece storage holes 4 (this 2 matches the number of rows 2 in FIG. 2). Set it). In FIG. 2, the change in the position of the intermittent rotation of the transfer table 3 in one cycle (the position of the work storage hole 4 is indicated by the number written in the “storage hole position” column of FIG. 2) is 2. It means that there is.

  Next, the workpiece storage hole 4 in the position (1) in FIG. 1 may be returned to the position (1) again when the transfer table 3 is rotated by the total number of rotations, that is, after two rotations. Here, as described above, since the conveyance pitch is twice the distance between the adjacent workpiece storage holes 4, the position change in one intermittent rotation of the conveyance table 3 is two.

  Therefore, if the number of rows in FIG. 2 is not a multiple of 2, the workpiece storage hole 4 at the position (1) returns to the position (1) again when the conveyance table 3 makes two rounds. From the above, it is a condition that the total number of work storage holes 4, that is, the number of rows in FIG. 2, is "not a multiple of 2", that is, an odd number.

  Next, the number of rows in FIG. 2 (the total number of work storage holes 4) is determined. Consider the difference in the position (storage hole position) between the stages indicated in the “stage name” column of FIG. Between the stages where the moving distance of the work is within one turn of the transfer table 3, the difference in position between the stages is equal to the position that changes by one intermittent rotation, and is 2 as described above. For example, in FIG. 2, the stage “storage” is at the position (1), and when the stage “charge” is moved to the next stage “charging” by one intermittent rotation from here, the stage “charging” is at the position (3). The difference is 3-1 = 2. Similarly, the position between the stages is also determined in three places from stage “charge before measurement” to stage “measurement”, from stage “measurement” to stage “discharge”, and from stage “discharge” to stage “storage”. The difference is 2.

  Further, the difference in position between the stages where the moving distance of the workpiece is more than one turn of the transfer table 3 is a change in position in one intermittent rotation, and the transfer table 3 rotates more than one turn. This is a value obtained by adding an integer of 1 or more, which is a change in position due to. In FIG. 2, the stage “charging” is at the position (3), and from here to the next stage “charging before measurement”, the transfer table 3 rotates more than one round. In other words, the position (5) is obtained by one intermittent rotation from the stage “charging”, and the difference in position is 5-3 = 2 (position change in one intermittent rotation) at this stage. Then, when the transfer table 3 further rotates more than one turn and moves to the stage “charge before measurement”, the position is further incremented by 1 at that stage to become the position (6). The difference between the positions of “charging” and stage “charging” is 6−3 = 3.

  As described above, in FIG. 2, between the stages whose position difference is 2, from the stage “storage” to the stage “charge”, from the stage “charge before measurement” to the stage “measurement”, and from the stage “measurement” to the stage. There are a total of 4 locations from “discharge” to stage “discharge” to stage “storage”, and one stage from stage “charge” to stage “charge before measurement” between the stages whose position difference is 3. Therefore, the number of rows in FIG. 2 (total number of workpiece storage holes 4) is 2 × 4 + 3 × 1 = 11 by adding the difference between these positions and the number of stages. This satisfies the condition of “not a multiple of 2”.

  Next, the second embodiment is taken as an example, and the difference from the first embodiment will be mainly described. In the second embodiment, two combinations of the charging stage 6, the pre-measurement charging stage 7 and the measurement stage 8 in the first embodiment are arranged in series. Therefore, there are two places where the moving distance of the workpiece is rotated more than one turn of the transfer table 3. That is, the extra number of laps of the transfer table 3 is two. Therefore, the total number of rotations of the transfer table 3 may be set to 3 rotations by adding 2 extra rotations to the basic one rotation. Since the total number of rotations of the transfer table 3 corresponds to the number of columns in FIG. 6, the number of columns in FIG.

  Next, the conveyance pitch is obtained in the same manner as in the first embodiment. In the second embodiment, the distance that the workpiece moves by one intermittent rotation of the transfer table 3 is three times the distance between the adjacent workpiece storage holes 4 (this 3 is matched with the number of rows 3 in FIG. 6). Set). In FIG. 6, the change in the position of the intermittent rotation of the transfer table 3 in one cycle (the position of the work storage hole 4 is indicated by the number written in the “storage hole position” column of FIG. 6) is 3. It means that there is.

  Next, the work storage hole 4 in the position (1) in FIG. 5 may be returned to the position (1) again when the transfer table 3 is rotated the total number of times, that is, three times. Here, as described above, since the conveyance pitch is three times the distance between the adjacent workpiece storage holes 4, the position change in one intermittent rotation of the conveyance table 3 is three.

  Therefore, if the number of rows in FIG. 6 is not a multiple of 3, the workpiece storage hole 4 at the position (1) returns to the position (1) again when the transport table 3 makes three rounds. From the above, the condition is that the total number of work storage holes 4, that is, the number of rows in FIG.

  Next, the number of rows in FIG. 6 (the total number of work storage holes 4) is determined. Consider the difference in the position (storage hole position) between the stages entered in the “stage name” column of FIG. Between the stages where the moving distance of the workpiece is within one turn of the transfer table 3, the difference in position between the stages is equal to the position that changes by one intermittent rotation, and is 3 as described above. For example, in FIG. 6, the position of the stage “storage” is the position (1), and if it moves to the next stage “charging 1” by one intermittent rotation from here, it is the position (4). 4-1 = 3. Similarly, from stage “charge before measurement 1” to stage “measurement 1”, from stage “measurement 1” to stage “charge 2”, from stage “charge before measurement 2” to stage “measurement 2”, and from stage “ The difference in position between the stages is also 3 at the five points from “Measurement 2” to the stage “discharge” and from the stage “discharge” to the stage “storage”.

  Further, the difference in position between the stages where the moving distance of the workpiece is more than one turn of the transfer table 3 is 3 which is a change in position in one intermittent rotation, and more than one turn of the transfer table 3. This is a value obtained by adding an integer of 1 or more, which is a change in position due to. In FIG. 6, the stage “charge 1” is at the position (4), and from here to the next stage “charge 1 before measurement”, the transfer table 3 rotates more than one round. That is, the position (7) is reached by one intermittent rotation from the stage “charge 1”, and the position difference is 7−4 = 3 (change in position in one intermittent rotation) at this stage. Then, when the transfer table 3 further rotates more than one turn and moves to the stage “charge before measurement 1”, the position is further added by 2 at that stage to become the position (9). The difference between the positions of “pre-charge 1” and stage “charge 1” is 9−4 = 5. Similarly, the difference between the positions of the stage “charge before measurement 2” and the stage “charge 2” is 20−15 = 5.

  As described above, in FIG. 6, between the stages whose position difference is 3, the stage “storage” to the stage “charge 1”, the stage “charge before measurement 1” to the stage “measurement 1”, and the stage “measurement”. From “1” to stage “charge 2”, from stage “charge 2 before measurement” to stage “measurement 2”, from stage “measurement 2” to stage “discharge”, from stage “discharge” to stage “storage” Between the stages where the position difference is 5, from stage “charge 1” to stage “charge before measurement 1” and from stage “charge 2” to stage “charge before measurement 2” Therefore, the number of rows in FIG. 6 (total number of workpiece storage holes 4) is 3 × 6 + 5 × 2 = 28 by adding the difference between these positions and the number of stages. This satisfies the condition of “not a multiple of 3”.

  Also in other embodiments, the number of columns and the number of rows in FIGS. 10, 14, 18 and the like can be determined by a similar method.

  Generalizing the rules for determining the number of columns and rows is as follows.

First, the number of rows, that is, the value of B / A when the transport pitch is B and the distance between adjacent workpiece storage holes 4 is A (the position that changes by one intermittent rotation, the total number of times of the transport table) )about,
B / A = 1 + (the number of combinations of processes from charging to measurement) × (the number of rotations that makes the transport table 3 circulate extra between charging processes in one set of processes from charging to measurement)
Ask for. Here, charging includes charging before measurement.

In addition, regarding the number of rows, that is, the total number of work storage holes 4 provided in the transfer table 3, N is a natural number.
K = [(B / A) × {(number of charging steps up to the measuring step) + (number of measuring steps)} + (number of charging steps for extra circulation of the transport table 3) × N] × (charging Number of combinations of a series of processes from the process to the measurement process) + (B / A) × (number of storage processes) + (B / A) × (number of discharge processes)
And K is obtained by not being a multiple of (B / A). Here, charging includes charging before measurement.

  In addition, in the determination method of K mentioned above, there is a description that “K is not a multiple of (B / A)”. For example, in the creation methods of FIGS. 2 and 6 in the first embodiment and the second embodiment, the conditions for determining the number of rows are “not a multiple of 2” and “not a multiple of 3”. Is described.

Here, care is required when the number of columns is not a prime number such as 4 or 6. A case where the number of columns is 6 will be described. The number of columns becomes 6 when the transport table rotates an extra 5 rounds. For example, as a modification of the first embodiment, there are cases where the process from charging to measurement is performed 5 times. At this time, the number of rows K is, as a numerical example in the above formula, B / A = 6, the number of charging steps up to the measuring step = 2, the number of measuring steps = 1, and the charging step of circulating the transport table 3 extra Substituting the number in between = 1, N = 3, the number of combinations of a series of processes from the charging process to the measurement process = 5, the number of storage processes = 1, the number of discharge processes = 1,
K = {6 × (2 + 1) + 1 × 3} × 5 + 6 × 1 + 6 × 1 = 117
It becomes. Since 117 is not a multiple of 6, if 117 is selected as the number of rows K, the total number of rows for two columns is 117 × 2 = 234, which is a multiple of 6. Therefore, when the conveyance table 3 is intermittently rotated at a conveyance pitch of 6 times the distance between the adjacent workpiece storage holes 4, the workpiece storage hole 4 returns to the original position when the conveyance table 3 makes two turns, and the workpiece is 1 It will stop at the same storage hole position in the 3rd and 3rd laps.

  In order to avoid such a situation, when setting the number of rows, when the conveyance table 3 is intermittently rotated at a conveyance pitch that is the number of columns times the distance between adjacent workpiece storage holes 4, the conveyance table 3 It is necessary to return the work storage holes 4 to the original position only after the number of rows has been turned.

Specifically, the number of rows may be set so that the remainder when the number of rows is divided by the number of columns is relatively prime to the number of columns. For example, when the number of columns is 6, in the above numerical example, if N = 1,
K = {6 × (2 + 1) + 1 × 1} × 5 + 6 × 1 + 6 × 1 = 107
It becomes. Here, when the obtained number of rows 107 is divided by the number of columns 6,
107/6 = 17 remainder 5
Since the remainder 5 is relatively prime with the number of rows 6, the work storage hole 4 returns to the original position for the first time when the transport table 3 makes six turns.

  In the embodiment described above, in FIGS. 3, 4, 7, 8, 11, 12, 15, 16, 19, and 20, the work storage unit in which the intermittent rotation unit of the transfer table 3 is adjacent is stored. Although it has been described that the measurement is performed while the conveyance table 3 makes one round with the same interval as the holes 4, the intermittent rotation unit is not necessarily the same as the interval between the adjacent workpiece storage holes 4. An integer that is a divisor of the total number of work storage holes 4 provided in the table 3 may be M, and M times the interval between adjacent work storage holes 4 may be a unit of intermittent rotation. For example, in FIGS. 7 and 8, the total number of work storage holes 4 provided in the transfer table 3 is 28. Therefore, take 2 which is one of the divisors and double the interval between adjacent work storage holes 4. The measurement may be performed while the conveyance table 3 makes one round as a unit of intermittent rotation. In that case, the distance between the pre-measurement charging stage 71 and the measurement stage 81 and the distance between the pre-measurement charging stage 72 and the measurement stage 82 should be twice the distance between the adjacent workpiece storage holes 4. Good.

  In the above-described embodiment, the pre-measurement charging stage and the measurement stage have been described as being arranged at different locations, but these are collectively arranged at the same location (for example, position (6) in FIG. 1). While the work is stopped at the place, after the pre-measurement charging is performed using the charging probe, the measurement may be performed using the measuring probe.

  In the embodiment described above, an example in which the conveyance table is intermittently rotated for one or more revolutions from charging to measurement is shown, but the conveyance table may not necessarily be intermittently rotated for one or more revolutions from charging to measurement. For example, in FIG. 1, the charging stage 6 is positioned at position (3), the pre-measurement charging stage 7 is positioned at position (9), the measuring stage 8 is positioned at position (11), and the discharge stage is positioned at position (2). In this order, the conveying table may be rotated intermittently for one round or more.

  In the above-described embodiment, the distance at which the capacitor moves between the charging stages (between the charging stage and the pre-measurement charging stage or between different charging stages) with a constant conveying pitch is from one turn of the conveying table. Although it is designed to be large, the transfer pitch is variable, and the capacitor charged at the charging stage rotates exactly one turn of the transfer table, then arrives at the same charging stage and is charged again. Also good.

  In the above-described embodiment, the case has been described in which the workpiece is accommodated and conveyed in the workpiece accommodation hole 4 opened outside the circular conveyance table 3, but the workpiece accommodation that penetrates the conveyance table 3 in the thickness direction of the conveyance table 3. You may accommodate and convey a workpiece | work in the hole 4. FIG.

  In the above-described embodiment, the case where the transfer table 3 is installed horizontally has been described, but the transfer table 3 may be installed vertically or may be installed inclined.

  In the embodiment described above, the case has been described in which the workpiece is conveyed by rotating (circulating) the circular conveying table 3 as the conveying member. However, the workpiece may be conveyed by circling a belt-like member such as an endless belt.

  In the above-described embodiment, an example in which the work storage holes 4 are provided at equal intervals in the transfer table 3 has been described. However, the work storage holes 4 are not necessarily provided at equal intervals. However, it is necessary to intermittently rotate the transfer table 3 in accordance with the distance between the workpiece storage holes 4.

  In each of the embodiments described above, the charging stage corresponds to the charging unit, the pre-measurement charging stage corresponds to the pre-measurement charging unit, and the measurement stage corresponds to the measuring unit. In each of these stages, it is not always necessary to provide a physical stage to perform charging or measurement. For example, the probe is brought into contact with the workpiece electrode from the top or bottom or left and right of the transfer table 3 to measure charging or leakage current. Do.

  Based on the above description, those skilled in the art may be able to conceive additional effects and various modifications of the present invention, but the aspects of the present invention are not limited to the individual embodiments described above. . Various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

The top view of the capacitor | condenser leakage current measuring apparatus which concerns on the 1st Embodiment of this invention. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. The top view of the capacitor | condenser leakage current measuring apparatus which is a modification of FIG. 1, and performs the leakage current measurement of the capacitor | condenser with a small main capacity | capacitance. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. The top view of the capacitor | condenser leakage current measuring apparatus which concerns on the 2nd Embodiment of this invention. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. FIG. 6 is a plan view of a capacitor leakage current measuring device that is a modification of FIG. 5 and measures leakage current of a capacitor having a small main capacity. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. The top view of the capacitor | condenser leakage current measuring apparatus which concerns on the 3rd Embodiment of this invention. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. FIG. 10 is a plan view of a capacitor leakage current measuring device that is a modification of FIG. 9 and measures leakage current of a capacitor having a small main capacity. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. The top view of the capacitor | condenser leakage current measuring apparatus which concerns on the 4th Embodiment of this invention. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. FIG. 14 is a plan view of a capacitor leakage current measuring device that is a modification of FIG. 13 and measures the leakage current of a capacitor having a small main capacity. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. The top view of the capacitor | condenser leakage current measuring apparatus which concerns on the 5th Embodiment of this invention. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. FIG. 18 is a plan view of a capacitor leakage current measuring device that is a modification of FIG. 17 and measures a leakage current of a capacitor having a small main capacity. The figure which showed the processing operation of the capacitor | condenser leakage current measuring apparatus of FIG. The equivalent circuit diagram of the general capacitor | condenser C0 in connection with a leakage current measurement. The figure which shows the time change of the electric current which flows into the capacitor | condenser C0 at the time of charging by applying a specified voltage to the capacitor | condenser C0. The top view of the conventional leakage current measuring apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Linear feeder 2 Separation supply part 3 Conveyance table 4 Work storage hole 5 Center axis 6, 61, 62, 611, 612, 621, 622 Charge stage 7, 71, 72 Charge stage before measurement 8, 81, 82 Measurement stage 9 Discharge Stage 10 Transport pitch adjusting means 100-113

Claims (12)

A capacitor in which a capacitor to be measured is stored in each of a plurality of work storage holes provided at equal intervals in a circulating transport body, and the leakage current of the capacitor is measured by intermittently circulating the transport body In the leakage current measurement method,
Storing the capacitor in the plurality of workpiece storage holes in a storage stage disposed around the transport body; and
Charging the capacitors stored in the plurality of workpiece storage holes in order at a charging stage disposed around the transport body; and
Recharging the capacitors stored in the plurality of work storage holes at the pre-measurement charging stage disposed around the transport body after the transport body has circulated more than one turn; and
Measuring the leakage current of the capacitor after charging the capacitor at the charging stage and the pre-measurement charging stage at a measurement stage arranged around the carrier, and
While the capacitor is transported from the charging stage to the pre-measurement charging stage, at least a part of the charge stored in the main capacity of the capacitor moves to a dielectric absorption factor for a longer time than the carrier travels once. The dielectric absorption factor is charged,
In the pre-measurement charging stage, the charge of the main capacity decreased by moving to the dielectric absorption factor is replenished,
In the measurement stage, the leakage current of the capacitor charged with both the main capacitance and the dielectric absorption factor is measured.   The transport body is intermittently circulated so that a transport pitch of the capacitors stored in the plurality of work storage holes is an integral multiple of 2 or more of a distance between adjacent work storage holes. The capacitor leakage current measuring method according to claim 1.   3. The capacitor leakage current measuring method according to claim 2, wherein the plurality of work storage holes return to their original positions after the transport body circulates intermittently and rotates around the integer number of 2 or more. The distance between the measurement before charge stage and the measurement stage is selected in accordance with the main capacitance of the capacitor, and, in accordance with the main capacitance of the capacitor, workpiece storage conveyance pitch for intermittently circulating the carrier capacitor leakage current measuring method according to any one of claims 1 to 3, wherein that you adjust the spacing of the holes as a unit. Capacitor leakage in which a capacitor to be measured is accommodated in each of a plurality of workpiece storage holes provided at equal intervals in a circulating conveyance body, and the leakage current of the capacitor is measured by intermittently circulating the conveyance body In the current measurement method,
The distance to the measurement stage and the measurement before charge stage, selected in accordance with the main capacitance of the capacitor, and in accordance with the main capacitance of the capacitor, the conveying pitch for intermittently circulating the carrier workpiece storage hole Adjusting the interval as a unit;
Charging the capacitors stored in the plurality of work storage holes in order at a charging stage while intermittently circulating the transport body; and
After charging the capacitor at the charging stage, the carrier is intermittently rotated more than one lap , and then recharged at the pre-measurement charging stage;
After recharging the capacitor at the pre-measurement charging stage, intermittently circulating the carrier, and measuring the leakage current of the capacitor after recharging at the measurement stage ,
While the capacitor is transported from the charging stage to the pre-measurement charging stage, at least a part of the charge stored in the main capacity of the capacitor moves to a dielectric absorption factor for a longer time than the carrier travels once. The dielectric absorption factor is charged,
In the pre-measurement charging stage, the charge of the main capacity decreased by moving to the dielectric absorption factor is replenished,
The measurement stage, the main capacitor and the capacitor leakage current measuring method for both the dielectric absorption factor features that you measure the leakage current of the charged of the capacitor. A capacitor in which a capacitor to be measured is stored in each of a plurality of work storage holes provided at equal intervals in a circulating transport body, and the leakage current of the capacitor is measured by intermittently circulating the transport body In the leakage current measurement method,
Storing the capacitor in the plurality of workpiece storage holes in a storage stage disposed around the transport body; and
Charging the capacitors stored in the plurality of workpiece storage holes in order at a charging stage disposed around the transport body; and
Recharging the capacitors stored in the plurality of work storage holes at a pre-measurement charging stage disposed around the transport body; and
Measuring the leakage current of the capacitor after charging the capacitor at the charging stage and the pre-measurement charging stage at a measurement stage arranged around the carrier, and
By selecting the distance between the pre-measurement charging stage and the measurement stage according to the main capacity of the capacitor, and adjusting the transport pitch for intermittently circulating the transport body in units of the interval between the work storage holes , Select whether the carrier circulates more than one lap from the charging stage to the pre-measurement charging stage or less than one lap,
While the capacitor is transported from the charging stage to the pre-measurement charging stage, at least part of the electric charge stored in the main capacitance of the capacitor is transferred to the dielectric absorption factor, so that the dielectric absorption factor is charged. ,
In the pre-measurement charging stage, the charge of the main capacity decreased by moving to the dielectric absorption factor is replenished,
In the measurement stage, the leakage current of the capacitor charged with both the main capacitance and the dielectric absorption factor is measured. A capacitor in which a capacitor to be measured is stored in each of a plurality of work storage holes provided at equal intervals in a circulating transport body, and the leakage current of the capacitor is measured by intermittently circulating the transport body In the leakage current measuring device,
A storage means disposed around the transport body and storing the capacitor in the plurality of work storage holes;
A charging unit that is arranged around the transport body and sequentially charges the capacitors stored in the plurality of work storage holes;
A pre-measurement charging means that is arranged around the transport body and recharges the capacitor stored in the plurality of work storage holes after the transport body has circulated more than one round.
Measuring means for measuring the leakage current of the capacitor after charging the capacitor by the charging means and the pre-measurement charging means, arranged around the carrier,
While the capacitor is transported from the charging unit to the pre-measurement charging unit, at least a part of the electric charge stored in the main capacity of the capacitor moves to a dielectric absorption factor for a longer time than the carrier travels once. The dielectric absorption factor is charged,
The pre-measurement charging means replenishes the reduced charge of the main capacity transferred to the dielectric absorption factor,
The measuring means measures a leakage current of the capacitor charged with both the main capacitance and the dielectric absorption factor . A transport pitch adjusting means for intermittently circulating the transport body so that the transport pitch of the capacitors stored in the plurality of work storage holes is an integer multiple of 2 or more of the distance between the adjacent work storage holes. The capacitor leakage current measuring device according to claim 7 , further comprising: The capacitor leakage current measuring device according to claim 8 , wherein the workpiece storage hole returns to the original position after the transport body circulates intermittently and rotates around the integer number of 2 or more. The distance between the measuring means and said measuring front charging means is selected in accordance with the main capacitance of the capacitor, and, in accordance with the main capacitance of the capacitor, the conveying pitch adjusting means is intermittently said carrier capacitor leakage current measuring device according conveying pitch to circulate in claim 8 or 9, characterized that you adjust the spacing of the workpiece receiving hole as a unit. Capacitor leakage in which a capacitor to be measured is accommodated in each of a plurality of workpiece storage holes provided at equal intervals in a circulating conveyance body, and the leakage current of the capacitor is measured by intermittently circulating the conveyance body In the current measuring device,
After the distance between the measuring means and the measurement before charging unit, were selected according to the main volume of the capacitor, according to the main volume of the capacitor, the distance between the conveying pitch workpiece storage hole for intermittently circulating the carrier A conveyance pitch adjusting means for adjusting the unit as a unit;
Charging means for sequentially charging the capacitors stored in the plurality of work storage holes while intermittently circulating the transport body;
After charging the capacitor with the charging means, the carrier is intermittently rotated more than one round , and then the pre-measurement charging means for recharging the capacitor;
After recharging the capacitor in the pre-measurement charging unit, the measurement unit is configured to measure the leakage current of the capacitor after recharging by intermittently circulating the carrier .
While the capacitor is transported from the charging unit to the pre-measurement charging unit, at least a part of the electric charge stored in the main capacity of the capacitor moves to a dielectric absorption factor for a longer time than the carrier travels once. The dielectric absorption factor is charged,
The pre-measurement charging means replenishes the reduced charge of the main capacity transferred to the dielectric absorption factor,
Said measuring means, said main capacitor and the capacitor leakage current measuring device which is characterized that you measure the leakage current of the capacitor both the charged of the dielectric absorption factor. A capacitor in which a capacitor to be measured is stored in each of a plurality of work storage holes provided at equal intervals in a circulating transport body, and the leakage current of the capacitor is measured by intermittently circulating the transport body In the leakage current measuring device,
A storage means disposed around the transport body and storing the capacitor in the plurality of work storage holes;
A charging unit that is arranged around the transport body and sequentially charges the capacitors stored in the plurality of work storage holes;
A pre-measurement charging means that is disposed around the transport body and recharges the capacitor stored in the plurality of work storage holes,
Measuring means arranged around the carrier, charging the capacitor by the charging means and the pre-measurement charging means, and measuring a leakage current of the capacitor;
By selecting the distance between the pre-measurement charging means and the measurement means according to the main capacity of the capacitor and adjusting the conveyance pitch for intermittently circulating the conveyance body in units of the interval between the work storage holes. A pitch adjusting means for selecting whether the carrier circulates more than one lap from the charging means to the pre-measurement charging means, or a lap within one lap,
While the capacitor is transported from the charging unit to the pre-measurement charging unit, at least a part of the charge stored in the main capacitance of the capacitor is transferred to the dielectric absorption factor, so that the dielectric absorption factor is charged. ,
The pre-measurement charging means replenishes the reduced charge of the main capacity transferred to the dielectric absorption factor,
The measuring means measures a leakage current of the capacitor charged with both the main capacitance and the dielectric absorption factor.

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