JPH01295176A - Measuring machine - Google Patents

Abstract

PURPOSE:To automatically and precisely measure a work in succession by providing many measuring units, work supplying device, plural measuring instruments and electricity charging device on a continuously rotating turn-table, and in addition providing a turn-table to be used for a separation. CONSTITUTION:Many chucks by which the work is crimped freely detachably and the measuring units 1 are provided radially with equal intervals on the continuously rotating turn-table 2. Next, the work supplying device 3 is provided in the set position on a locus 2b of the chuck running around, the measuring instruments 4, 4' are provided in more than one set position on the locus 2c of the terminal running around and the charging device 56 is provided in the set angle range on the locus 2c of the terminal running around respectively. Further, in the set position between the measuring instrument 4' and the work supplying device 3, the turn-table 6 to be used for the separation is provided, which is made to rotate synchronizing with the turn-table 2.

Description

DETAILED DESCRIPTION OF THE INVENTION ■)...Industrial Application Field The present invention is a measurement system that continuously measures the capacitance, IR value, etc. of a workpiece (mainly chip capacitors, small multilayer capacitors, etc.) at high speed and automatically. In relation to the machine, a large number of measuring instrument units are arranged radially on a turntable that rotates continuously (not intermittently), and in conjunction with the turntable, a work supply device, one or more measuring devices, and a charging device (charging zone) are installed. and a separation turntable, etc., so that workpiece supply, measurement, charging, workpiece transfer to the separation table, etc. are all performed at high speed automatically and continuously during one rotation of the turntable. This is a feature.

■)... Conventional technology and its problems The measurement method that has been widely used in the past is: (1)... A single workpiece is supplied between the terminals of an appropriate measuring device or charging device by an appropriate means, Measurement and charging are carried out by press-contacting the terminals, and therefore there are the following drawbacks.

(i) The terminal is brought into contact with the workpiece under pressure many times during each measurement and charging, resulting in damage to the workpiece and adverse effects due to the pressurization.

(ii) Since the workpieces are extremely small, it is difficult to uniformly and precisely supply them to each workpiece, resulting in variations in measurement and charging values.

(iii) It takes time to carry out measurements and charging a predetermined number of times, resulting in poor production efficiency, and the device is also complex, large and expensive.

(2)...Also, in order to perform the above method more efficiently,
There is also a method in which about 10 workpieces are arranged in a measuring device and a charging device at a time, and the measurement and charging are repeated one after another or simultaneously, but the device is bulky, complicated, and expensive. Moreover, it is difficult to configure as an automatic machine, and even if it is automated, it only operates intermittently, making it difficult to increase production efficiency.

Therefore, the workpiece can be moved automatically at high speed, completely continuously, and
There has been a strong demand for the development of a measuring machine that can measure each piece with uniform precision.

(2) Structure of the present invention The present invention solves the above-mentioned problems of the conventional art and has invented a measuring instrument that can satisfy the conventional demands.

(1)...That is, the present invention provides a measuring instrument unit consisting of a chuck that can freely open and close a workpiece by the elastic force of a spring that also serves as a conducting wire, and a terminal connected to a continuously rotating disc-shaped turntable. A table is equipped with a large number of pieces arranged radially at equal intervals, and on the turntable, a work supply device is placed at a set position on the chuck rotation trajectory, a measuring device is placed at one or more set positions on the terminal rotation trajectory, and a workpiece feeding device is provided at a set position on the chuck rotation trajectory, and a measuring device is placed at one or more set positions on the terminal rotation trajectory. A charging device is provided in each of the above setting angle ranges, and a separation turntable that rotates in synchronization with the turntable is provided at a setting position between the rearmost measuring device and the workpiece supply device under the chuck rotation trajectory of the turntable. This is the configured measuring device.

(2)...Next, the configuration of the present invention will be explained as an example (drawing).
To explain this, a chuck 1a that clamps a work W (mainly a chip capacitor) so that it can be opened and closed by the elastic force of a spring 1b that also serves as a conductor, and a measuring instrument unit 1 that is connected to a terminal 1c, are connected in a continuously rotating circle. A plurality of workpiece supply bags M3 are provided radially at equal intervals on a radial line centered on the rotation axis 2a of a plate-shaped turntable 2, and a work supply bag M3 is placed at a set position on the chuck rotation locus 2b of the turntable 2. A measuring device 4.4' is provided at one or more set positions on the movement locus 2c, and a charging device 5 is provided at a set angle range on the terminal rotation locus 2c. The measuring machine is provided with a separation turntable 6 that rotates synchronously with the turntable 2 at a set position between the rearmost measuring device (4' in the figure) and the work supply device 3.

(3)...The measuring instrument unit 1 includes, for example, a chuck 1a formed by a pair of plunger terminals 1d that are slidably opened and closed and supported by a spring 1b that also serves as pressurization and electrical connection;
It is provided by connecting terminals 1c provided at a distance,
The left and right terminal portions of the workpiece W are elastically chucked between the tips of the plunger terminals 1d. One chuck la is supplied with alignment (front and back, front and rear, polarity, etc.) of each piece.

(5)...The measurement device uses an appropriate measurement device 4.4' that performs capacitance measurement, IR measurement, etc. (after charging), and its measurement terminal 4a descends and contacts the terminal 1c of the turntable 2. → Move the dimension l between terminals 1c and lc in synchronization with turntable 2 (measured during that time) → Raise → Return to original position → Lower again and synchronize the cycle movement of contacting terminal 1c of turntable 2 with the rotation of the turntable This is done by doing so.

(6)...The charging device 5 is equipped with a suitable charging device within a set angle α° range on the terminal rotation locus 2c, and forms a charging zone 5a in which charging is performed for a predetermined time and voltage. , the charging terminal is in sliding contact with the terminal IC of each measuring instrument unit 1 of the rotating turntable 2.

(7)...Furthermore, the separation turntable 6 is provided with work receiving holes 6a with shutters at equal intervals along the periphery of the disc, and a part of the rotation locus 6b of the receiving holes 6a. and a part of the chuck rotation locus 2b of the turntable 2 are overlapped with each other, and each chuck la opens and releases a falling workpiece W by rotating in synchronization with the turntable 2 to each receiving hole 6a.
The receiving hole rotation locus 6b of the separating turntable 6 is
The workpiece W is set at each predetermined measurement value within the range of the downward setting angle β°.
A plurality of chutes 7 are provided at equal intervals to the receiving hole 6a, and when the receiving hole 6a comes over the chute 7 corresponding to the measured value, the shutter is opened and the workpiece W is dropped into the chute 7.

(8)...The type of measuring device (capacity, IR value, etc.) and number of measurements, as well as the type of charging device, number of installations, range of charging zone, etc. are not limited to the examples and can be determined arbitrarily. be.

■)...Effect (1)...Turntable 2 that rotates continuously at a set speed
One workpiece W is supplied from the workpiece supply device 3 to the chuck 1a of each measuring instrument unit 1, and the chuck 1a
are chucked one after another between the plunger terminals 16 by the elastic force of the spring 1c.

(2)...When each measuring device unit l that chucks the workpiece W rotates to the position of the primary measuring device 4 (e.g., capacity measurement), the measuring terminal 4a of the measuring device 4 descends and connects to the terminal 1c. The measuring instrument unit moves synchronously with the rotation of the turntable 2 by the distance 2 between the terminals of the measuring unit 1 to 1, maintains the contact state during that time, performs measurement, and then separates and rises.
Returns to the original position and connects terminal 1 of the next measuring instrument unit 1 again.
The cycle of descending into contact with c is repeated, and the workpieces are measured one after another.

(3)...Subsequently, when each measuring instrument unit 1 is rotated to the position of the charging device 5, the charging terminal (spring piece shape, brush shape, etc.) of the device 5 slides into contact with the terminal 1c, Charging is performed for a predetermined time and at a predetermined voltage while passing through the charging zone 5a.

(4)...Next, each measuring instrument unit 1 that has chucked the charged workpiece is rotated to the secondary measuring device 4' (for example, the position for IR measurement, etc.), and the measurement is performed in the same manner as described in (2) above. terminal 4
The workpiece W is measured by repeating the cycle motion.

(5)...Next, when the chuck 1a of each measuring instrument unit 1 of the above-mentioned measuring instrument comes to the receiving hole 6a position of the separation turntable 6 which rotates in synchronization with the turntable 2, the chuck 1a opens and the workpiece is removed. The W is released and falls into the receiving hole 6a.

(6) When the separation turntable 6 that has received the workpieces W one after another into each receiving hole 6a rotates and comes to the chute 7 position, the shutter opens at the corresponding measured value chute position,
Therefore, the workpiece W is separated into chutes for each measurement value and is fed down.

(7)...The effects of the above (1) to (6) are all carried out continuously following the supply of workpieces W to each measuring instrument unit 1 of the continuously rotating turntable 2. Therefore, each workpiece W is uniformly and accurately measured, charged, and measured one by one during one rotation of the turntable 2.
They are classified according to their measured values.

■)...Effects (1)...Measurement, charging, and sorting of workpieces can all be performed automatically and continuously at high speed on a single continuously rotating turntable, so each workpiece can be It has an extremely excellent feature of precisely and evenly measuring individual chips.

(2)...Therefore, there is an advantage that workpiece measurements can be performed with high accuracy and at a speed several times higher than that of conventional methods.
The entire measuring device can be configured simply and compactly.

(3)...Each measuring instrument unit has an independent configuration, even if a large number of them are installed radially on the turntable, and the workpiece is supplied to the unit and initially Since all operations such as measurement, charging, and separation are performed during one rotation with the turntable while the workpiece is still chucked, it is possible to perform measurements and other operations while holding the workpiece stably, and it is possible to It is possible to achieve high precision, high uniformity measurements, etc. without any disturbance.

(4)...As mentioned above, the measuring terminal of the measuring device performs the cyclic movement of descending contact → synchronous movement → separating and rising → restoring in synchronization with the rotational speed of the turntable.
The contact between the measurement terminal and the terminal of the measuring instrument unit is made under the same conditions as descending contact at a stationary position → maintaining contact for a set time → separating and rising. Therefore, even and stable measurements are possible. became.

Note that if the measuring terminal for measurement and the terminal of the measuring instrument unit are brought into contact by sliding contact, there is a risk of noise generation, poor contact, or uneven contact. I was able to eliminate it.

(5)...Charging a workpiece for IR measurement etc. requires charging for a predetermined time and charging to a predetermined voltage in order to obtain the desired measurement value, but the present invention uses a continuously rotating turntable. In relation to the rotational speed, by appropriately setting a charging zone within a set angle range and providing a charging device, there is an advantage that the intended purpose can be met.

That is, by adjusting the rotational speed of the turntable, adjusting the set angle range of the charging zone, and further adjusting the diameter of the turntable, the number and spacing of the measuring unit units 7), etc.
It has the advantage of being able to set any charging time and voltage.

[Brief explanation of the drawing]

FIG. 1 is an explanatory plan view showing the general configuration of the present invention, FIG. 2 is an explanatory view of the configuration of a measuring instrument unit, and FIG. 3 is an explanatory view of the operation of the measuring terminal of the measuring device. Number W... Work (mainly 1, chip capacitor), P...
...Dimensions between terminals IC1IC, α°...Charging zone setting angle range, β°...Chute setting angle range, 1...Measuring instrument unit, 1a...Chuck, 1b...
...Spring, 1c...Terminal, ld...Plunger terminal, 2...Turntable, 2a...Rotating axis 2b...Chuck rotation locus, 2c...Terminal rotation locus, 3. ... Work supply device, 4... Measuring device (e.g. capacity), 4'... Measuring device (e.g. rR value), 5... Charging device, 5a... Charging zone, 6... Separation turntable, 6a... Receiving hole, 6b... Receiving hole rotation locus, 7... Chute.

Claims (6)

[Claims] (1) A chuck that can open and close a workpiece using the elastic force of a spring that also serves as a conductor, and a measuring instrument unit that connects terminals are arranged radially at equal intervals on a continuously rotating disc-shaped turntable. A work supply device is provided at a set position on the chuck rotation locus on the turntable, a measuring device is placed at one or more set positions on the terminal rotation locus, and a charging device is provided at a set angle range on the terminal rotation locus. and a separation turntable that rotates in synchronization with the turntable at a set position between the rearmost measuring device and the workpiece supply device under the chuck rotation locus of the turntable. (2) The measuring instrument unit has a pair of plunger terminals that can be slid open and closed, connected to a chuck that receives a spring that also serves as pressurization and electrical connection, and the terminals that are separated from each other. A measuring device that elastically chucks the left and right ends of a workpiece between the plunger terminal tips. (3) The chip supply device feeds the workpiece from an appropriate feeder, etc. to the chuck of each measuring instrument unit on the turntable.
A measuring machine that aligns and supplies one piece at a time. (4) The measurement device uses an appropriate measurement device that performs capacitance measurement, IR measurement, etc., and its measurement terminal descends and contacts the terminal of the turntable → the dimension between the terminals moves synchronously with the turntable (during which This is a measuring device that performs a cyclic movement in synchronization with the rotation of the turntable: → rise → return to original position → lower again and contact the terminal of the turntable. (5) The charging device is equipped with an appropriate charging device within a set angle range on the terminal rotation locus to form a charging zone in which charging is performed for a predetermined time and voltage, and the charging terminal rotates. A measuring device that makes sliding contact with the terminals of each measuring device unit on the turntable. (6) The separation turntable is equipped with work receiving holes with shutters at equal intervals along the periphery of the disk, and a part of the rotation trajectory of the receiving holes and the chuck rotation trajectory of the turntable are The chuck rotates in synchronization with the turntable, and each chuck opens to receive one falling workpiece into each receiving hole. In the set angle range below the moving trajectory, multiple chutes are provided at equal intervals with the receiving hole to separate the workpiece for each predetermined measurement value, and when the receiving hole comes over the corresponding measurement value chute, the shutter is opened and the workpiece is dropped into the chute. A measuring device designed to do this.