JP3147421B2 - Pin stand device and vibration measuring method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin setting device for applying vibration to a conductor pin to set the conductor pin on a pin setting pallet. The present invention relates to a structure for measuring a state and a method for measuring a vibration state thereof.

[0002]

2. Description of the Related Art A pin grid array, which is one of the packages of an integrated circuit, comprises a substrate and a large number of conductor pins provided on one side thereof. That is, as shown in FIG. 5, the pin grid array 9 includes a substrate 90, a concave electronic component mounting portion 93 disposed at the center of the substrate 90, and a large number of conductor pins implanted on the substrate 90. The conductor pins have their heads fitted in through holes formed in the substrate 90, and there are two types of standard pins 91 and stand-off pins 92 depending on their flange shapes. The standard pin 91 has a flange 911, and the flange 911 is fitted into the substrate 90. The stand-off pin 92 has an upper flange 921 and a lower flange 922, and the upper flange 921 is attached to the substrate 90.
Are fitted in the four corners.

[0003] When the conductor pins are erected, a pin erection device is used. As shown in FIG. 6, the pin setting device moves the pin setting pallet 83 onto the pallet 83, for example, by inserting standard pins 9 as conductor pins.
1 and the pin stand 8
And a vibrator 82 for vibrating 1 in the vertical direction and the front-back direction. The pallet 83 has a pin insertion hole 830 into which the standard pin 91 is inserted. After the conductor pins are set up on the pallet 83 by the pin setting device in this manner, operations such as insertion of missing pins and press-fitting of the pins into the substrate 90 are performed (for example,
JP-A-63-51071, JP-A-62-2778
No. 00).

In the pin setting device, it is necessary that all portions of the pin setting portion 81 vibrate in the same manner. However, the vibrating state of the pin setting portion 81 changes during use, so that pin setting may not be performed reliably. In order to adjust the vibration state, a vertical vibration measuring device 84 is arranged in the pin stand 81. The vertical vibration measuring device 84 includes a pickup 841 and an amplitude meter 842. The vertical vibration measuring device 84 measures only the magnitude of the vertical vibration of the pin stand 81, and adjusts the vertical vibration of the pin stand 81 based on the measurement result.

[0005]

However, in the conventional pin setting device, an accurate vibration state cannot be measured. This point will be described in detail with reference to FIG. The vibration state of the pin stand 81 is determined by the pallet 8
3 and the vertical vibration in the direction perpendicular to the feed direction. Here, the vibrations acting on the standard pin 91 are, for example, a longitudinal vibration FH for moving the standard pin 91 backward and a vertical vibration FV for causing the standard pin 91 to jump.

Therefore, in order to accurately measure the vibration state, it is necessary to calculate a resultant force FG between FH and FV as shown in FIG. However, in the conventional pin setting device, since only the magnitude of the vertical vibration was measured, it was not possible to accurately measure the vibration state. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and has as its object to provide a pin setting device and a vibration measuring method thereof that can accurately measure a vibration state.

[0007]

According to the present invention, there is provided a pin stand for erecting a conductor pin on a pallet while moving the pin stand pallet, and vibrating the pin stand in a vertical direction and a front-rear direction. In a pin setting device having a vibrator, a vertical vibration measuring device and a longitudinal vibration measuring device are arranged in the pin standing portion, and both measuring devices simultaneously display vertical and longitudinal vibration directions and amplitudes. The pin setting device is connected to the pin setting device.

What is most notable in the present invention is that the vertical vibration measuring device and the longitudinal vibration measuring device provided in the pin stand and the oscilloscope connected thereto accurately measure the actual vibration state of the pin stand. Configuration. Here, the actual vibration state of the pin stand is a combination of the vertical vibration and the longitudinal vibration of the pin stand. The vertical vibration measuring device and the longitudinal vibration measuring device are for converting the vibration state of the pin stand into an electric signal. As this type of vibration measuring device, there is one provided with, for example, a pickup as a vibration measuring element and an amplitude meter (see FIG. 1).

The oscilloscope receives electric signals from the vertical vibration measuring device and the longitudinal vibration measuring device and displays the vibration state of the pin stand on the fluorescent film as, for example, a loop-like waveform. . Preferably, the oscilloscope is connected to the vibrator via a controller. This makes it possible to construct a system for automatically adjusting the vibration state.

[0010] As a method of measuring the vibration in the pin setting device, a pin setting portion for erecting the conductor pins on the pallet while moving the pin setting pallet, and the pin setting portion is vertically moved. In a pin setting device having a vibrator for vibrating in the front and rear direction, a vertical vibration measuring device and a front and rear vibration measuring device are arranged in the pin standing portion when measuring the vibration state. A vibration in a pin setting device which is connected to an oscilloscope, inputs the signals from the two measuring instruments to the oscilloscope, combines the two signals, and simultaneously displays the vertical and vertical vibration directions and amplitudes. There is a measurement method.

[0011]

In the present invention, a vertical vibration measuring device and a longitudinal vibration measuring device are arranged at the pin stand. Therefore, the vertical vibration of the pin stand is measured by the vertical vibration measuring device. The longitudinal vibration of the pin stand is measured by the longitudinal vibration measuring device. These measurement data are input to the oscilloscope as electric signals. In the oscilloscope, an electric signal from the vertical vibration measuring device and an electric signal from the longitudinal vibration measuring device are combined. Then, the oscilloscope simultaneously displays the vertical and horizontal vibration directions and the magnitude of the amplitude on the fluorescent film (see FIG. 4).
Then, while measuring this display, the vibration state of the pin setting device is adjusted, and the pin setting process is set to an optimum state. As described above, according to the present invention, it is possible to provide a pin setting device and a vibration measuring method capable of accurately measuring a vibration state.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pin stand and a vibration measuring method according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the apparatus of this embodiment comprises a pin stand 1 for erecting conductive pins on the pallet 83 while moving the pin stand pallet 83, and the pin stand 1 is moved vertically. And a vibrator 2 for vibrating in the front-back direction. The pin stand 1 has a vertical vibration measuring device 3
1 and a longitudinal vibration measuring device 32 are arranged. The measuring devices 31 and 32 are connected to an oscilloscope 4 that simultaneously displays the vertical and horizontal vibration directions and amplitudes. The pin stand 1 is, as shown in FIGS.
It is located along the top of the pin stand. The pin stand 1 has a gentle upward slope from the entrance 11 to the exit 13.

As shown in FIG. 2, the vibrators 2 are disposed at two positions on the inlet 11 and the outlet 12 of the pin stand 1. As shown in FIG. The vibrator 2 includes a feeder bracket 20, a solenoid coil 21 fixed to the feeder bracket 20, a magnetic body 23 connected to the solenoid coil 21 via a leaf spring 22, and a magnetic body 23.
And a feeder bracket 24 fixed to the feeder bracket 24. The upper surface of the feeder bracket 24 is fixed to the lower surface of the pin stand 1. The vertical vibration measuring device 31 is shown in FIG.
As shown in the figure, a pickup 311 as a vibration measuring element
And an amplitude meter 3 electrically connected to the pickup 311.
It consists of 12. The pickup 311 includes the pin holder 1
The mounting bracket 15 is fixed in a direction in which vertical vibration can be detected.

The longitudinal vibration measuring device 32, like the vertical vibration measuring device 31, includes a pickup 321 and an amplitude meter 322. The pickup 321 is fixed with respect to the mounting bracket 15 in a direction in which longitudinal vibration can be detected. And the amplitude meter 31 of the vertical vibration measuring device 31
The oscilloscope 4 and the amplitude meter 322 of the longitudinal vibration measuring device 32 are electrically connected to each other. Note that FIG.
3 and 5, reference numeral 5 denotes a balance weight, reference numeral 61 denotes a base, reference numeral 62 denotes a leg, reference numeral 63 denotes a spring, and reference numeral 7 denotes a pin feeder frame.

Next, a vibration measuring method will be described. Here, a vertical vibration measuring device 31 and a longitudinal vibration measuring device 32 are arranged at the entrance 11, central portion 12 and exit 13 of the pin stand 1, respectively, and the balance weight 5 is provided only below the central portion 12. Vibration measurements were performed for the cases. In measuring the vibration, the oscilloscope 4 is operated to read signals from the vertical vibration measuring device 31 and the longitudinal vibration measuring device 32.

At this time, the pickup 311 of the vertical vibration measuring device 31 detects the vertical vibration and sends the signal to the amplitude meter 312. The amplitude meter 312 includes the pickup 3
In response to the signal from the controller 11, the amplitude of the vertical vibration is calculated. Then, the amplitude meter 312 converts the calculation result into an electric signal and sends it to the oscilloscope 4. Also in the longitudinal vibration measuring device 32, the magnitude of the longitudinal vibration is obtained by the pickup 321 and the amplitude meter 322 in the same manner as the vertical vibration measuring device 31, and the electric signal is transmitted to the oscilloscope 4.
Send to

In the oscilloscope 4, for example, the vertical axis corresponds to vertical vibration, and the horizontal axis corresponds to longitudinal vibration. The oscilloscope 4 synthesizes information on vertical vibration and longitudinal vibration based on the electric signals from both the amplitude meters 312 and 322. Then, as shown in FIG. 4, the oscilloscope 4 simultaneously displays the vertical and vertical vibration directions and the magnitude of the amplitude on the phosphor film as a loop-shaped waveform.

Thus, as shown in FIG. 1, the vertical vibration FV and the longitudinal vibration FH can be combined to display an accurate vibration FG. The signal processing is performed on the entrance 11, the center 12, and the exit 13 of the pin stand 1, as shown in FIG. As described above, according to the present embodiment, the accurate vibration state of the pin setting device can be known. Therefore, the vibration of the pin setting device can be adjusted so that the most effective pin setting operation can be performed. In addition, pinning can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a pin stand device and a vibration measuring method thereof according to an embodiment.

FIG. 2 is a detailed side view of the pin stand device of the embodiment.

FIG. 3 is a detailed front view of the pin stand device of the embodiment.

FIG. 4 is an explanatory diagram of a vibration measurement result in the example.

FIG. 5 is a perspective view of a conventional pin grid array.

FIG. 6 is a schematic explanatory view of a conventional pin setting device and a vibration measuring method thereof.

[Explanation of symbols]

 1. . . Pin stand, 2. . . Vibrator, 31. . . Vertical vibration meter, 32. . . 3. Front-back vibration measuring instrument, . . Oscilloscope, 83. . . Pallet, 91. . . Standard pin, 92. . . Standoff pin,

Claims (2)

(57) [Claims] 1. While moving a pin stand pallet,
A pin stand for erecting a conductor pin on the pallet;
A pin stand device having a vibrator for vibrating the pin stand in the vertical direction and the front and rear direction, wherein a vertical vibration measuring device and a front and rear vibration measuring device are arranged on the pin standing portion, and both measuring devices are vertically moved. A pin setting device connected to an oscilloscope that simultaneously displays a vibration direction and a magnitude of amplitude before and after. 2. While moving the pin stand pallet,
A pin stand for erecting a conductor pin on the pallet;
In a pin stand device having a vibrator for vibrating the pin stand in the vertical direction and the front-back direction, when measuring the vibration state, the pin stand is provided with a vertical vibration measuring device and a longitudinal vibration measuring device. The two measuring instruments are connected to an oscilloscope, and the signals from the two measuring instruments are input to the oscilloscope, and the two signals are combined to simultaneously display the vertical and horizontal vibration directions and amplitude. A vibration measuring method in a pin stand device.