JPH0238453Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to IC testing equipment, and in particular provides an IC testing equipment with an attitude control function that automatically adjusts the attitude of the magazine that aligns and holds ICs to a predetermined attitude. This is what I am trying to do.

<Background of the invention> For example, there is an IC test device with a structure as shown in Figure 1. In the figure, 1 indicates the IC automatic supply section. This IC
A large number of magazines 2 having a shape as shown in FIG. 2 are stored in the automatic supply section 1. The magazine 2 holds the ICs 3 to be inspected in a predetermined direction.

4 indicates a measuring section for testing IC3. This measuring section 4 is connected to an IC from an automatic IC supply section 1 through a passage 5.
3 is supplied, and the IC3 is sequentially tested. The IC automatic supply section 1 drops the empty magazine 2 onto the chute 6 and feeds the empty magazine to the empty magazine storage section 7. When the empty magazine storage section 7 becomes full with empty magazines, the empty magazines are sent to the IC automatic storage section 8. The automatic IC storage section 8 classifies the ICs inspected by the inspection section 4 into good and bad, or according to the type of defect, and sequentially stores the ICs into empty magazines.

In this way, if the magazine containing ICs is loaded into the IC automatic supply section 1, the ICs will be stored in the magazine 2.
The ICs are automatically sent to the measuring section 4, and the empty magazines in the IC automatic supply section 1 are automatically sent to the automatic storage section 8, and the ICs that have been inspected are sequentially stored into the empty magazines. It is done. Therefore, once a magazine containing ICs is loaded into the automatic IC supply section 1, there is an advantage that automatic operation can be performed until the automatic IC supply section 1 runs out of magazines.

Incidentally, since ICs are stored in the empty magazine again in the IC automatic storage section 8, the empty magazine given to the IC automatic storage section 8 is placed in a predetermined posture, for example, the concave groove 2a of the magazine 2 (FIG. 2) is formed. It must be stored in the automatic storage section 8 with the side facing downward. However, when the empty magazine dropped from the automatic IC supply section 1 reaches the lower end of the chute 6, it is difficult to always set the magazine 2 in the correct direction.

<Prior art> For this reason, in the past, the width of the chute 6 was regulated and the magazine was constructed so as not to rotate in the middle of the chute 6, or a conveyance means was provided along the chute 6, so that the IC automatic feeder 1 could be moved from the IC feeder 1 to its normal position. A method is adopted in which the magazine is received at the top of the magazine and the magazine is transported to the magazine storage section 7 while maintaining that position. If it is restricted to this, there is a drawback that an accident may occur where the magazine gets caught in the middle.

In addition, if the structure is such that the magazine is delivered while maintaining its posture by the transport means, there is a means attached to the transport means for moving and loading empty magazines from the automatic supply section 1 to the transport means, and a means for loading the empty magazines from the transport means to the magazine storage section 7. A means to unload the empty magazine is required,
The drawback is that it becomes more complex overall. Another drawback is that the cost increases in proportion to the complexity of the structure.

<Purpose of the invention> The purpose of this invention is to provide an IC testing device that can be manufactured relatively inexpensively and has a configuration that can reliably align the posture of the magazine in a fixed direction.

<Summary of the invention> In this invention, there is a first magazine attitude means consisting of a light source and a light receiver at the lower end of the chute, and a second attitude detection means of the magazine consisting of a check plate, a light source and a light receiver that move back and forth along the axial direction of the magazine. a magazine attitude detecting means comprising a means for detecting the attitude of the magazine; a pulse motor that changes the attitude of the magazine to a normal attitude based on the result of the attitude detection; and an air chuck rotated by the pulse motor. This structure is equipped with a driving means.

<Example of the invention> Fig. 3 shows an example of the invention. In FIG. 3, parts corresponding to those in FIG. 1 are designated by the same reference numerals. That is, the magazine attitude detecting means 100 and the attitude driving means 200, which are the essential parts of this invention, are provided at the lower end of the chute 6. The magazine 2 that has fallen through the chute 6 is at the stopper 11.
, and is held down by the magazine press 12 and fixed in its current position. In the fixed state, the magazine attitude detection means 100 detects the magazine 2.
Detect the posture of

The magazine attitude detecting means 100 is connected to a first attitude detecting means 110 which determines whether the magazine 2 is oriented vertically or horizontally on its flat plane, and a first attitude detecting means 110 which determines whether the magazine 2 is oriented vertically or horizontally on its flat plane. second attitude detection means 12 for detecting that the orientation is
0.

The first attitude detection means 110 can be configured by, for example, a light source 111 and a light receiver 112. Optical axes 113 of the light source 111 and the light receiver 112 are set at positions where light passes through when the magazine 2 is in a horizontal orientation, and is blocked when the flat surface of the magazine 2 is in a vertical orientation.

On the other hand, the second attitude detection means 120 includes a check plate 121 that is pressed against the end surface of the magazine 2 to check whether the magazine 2 is in the outward attitude.
, an air cylinder 122 that moves the check plate 121 forward and backward, and a light source 123 that detects whether the check plate 121 is inserted into the magazine 2.
and a light receiver 124.

The posture driving means 200 includes a pulse motor 201,
It can be constructed by an air chuck 202 attached to the output shaft of this pulse motor. The air chuck 202 is normally open and held in a position where it does not come into contact with the magazine 2.
When changing the attitude of the magazine 2, compressed air is supplied from the tube 203, the air chuck 202 closes and grips the magazine 2, and the pulse motor 201 rotates the magazine 2 to 90° or 180° depending on the detection result of the attitude detecting means 100. It rotates and changes the attitude of the magazine 2 to the desired attitude.

<Operation of the invention> The operation of the posture detection means 100 will be explained. The first attitude detection means 110 detects the light source 1 when the magazine 2 is in a vertical attitude as shown by the dotted line in FIG.
An optical axis 113 connecting the light receiver 11 and the light receiver 112 is blocked by the magazine 2. Therefore, when the light receiver 112 does not receive light, it is determined that the magazine 2 is standing vertically, and the magazine press 12 is raised by the cylinder 14, and the air chuck 202 of the posture driving means 200 is operated to close, and the pulse motor 201
Rotate the magazine 2 by 90 degrees to turn the magazine 2 into a horizontal position.

Next, the second attitude detection means 120 operates to determine whether the magazine 2 is facing forward. For this determination, the air cylinder 122 is used to project the check plate 121 and press the check plate 121 against the end surface of the magazine 2. The position where the check plate 121 hits is the concave groove 2 of the magazine 2 which is placed face up as shown in FIG. 5A.
Select a position that crosses a.

When the magazine 2 is in its normal position, the check plate 121 abuts at a position across the groove 2a of the magazine 2 and does not enter into the interior of the magazine 2. In this state, as shown in FIG. 6A, the light source 1
23 and a light receiver 124, and when no light is applied to the light receiver 124, it is determined that the magazine 2 is in a normal position, and the stopper 11 is moved back by the cylinder 13. The magazine 2 is moved from the position where the attitude detection means 100 and the attitude drive means 200 are located to the upper position of the magazine storage part 7, and the magazine 2 is engaged with a protrusion 7a formed in the magazine storage part 7, and this protrusion 7a The magazine 2 is dropped into the magazine storage section 7 by further retracting the magazine 2 into the stopper 12 in a state where the magazine 2 is engaged with the stopper 12. At this time, if an air cylinder (or an electromagnetic plunger may be used) is used as the cylinder 13, the operating speed of the air cylinder (or the electromagnetic plunger) is high, so when the stopper 11 is removed from its lower part, the magazine 2 You can maintain the same posture as if you were located above 11. Therefore, the magazine can be dropped into the magazine storage section 7 in a normal posture.

On the other hand, when the magazine 2 is in the reverse position, the check plate 121 does not abut against the end of the magazine 2, as shown in FIG.
As shown in FIG. B, the check plate 121 enters the inside of the magazine 2. Therefore, the optical detection means comprising the light source 123 and the light receiver 124 detects that the magazine 2 is in the face-down position. When the second attitude detecting means 120 detects that the magazine 2 is in the face-down attitude, the magazine press 12 is raised by the cylinder 14 and becomes a non-pressing state, and at the same time, the air chuck 202 of the attitude driving means 200
grips the magazine 2, and the pulse motor 201
Rotate 180° to reverse the direction of magazine 2. When this reversal operation is completed, the air chuck 202 separates from the magazine 2, and the cylinder 13 operates to drop the magazine 2 into the magazine storage section 7.

<Effects of the invention> As described above, according to this invention, the attitude detection means 100 includes a first attitude detection means consisting of a light source 111 and a light receiver 112, a check plate 121, a cylinder 122 for moving the check plate 121 forward and backward, and a light source. 123, a light receiver 124, and a second posture means consisting of a second posture means 123, and the posture drive means 200 includes one pulse motor 20.
1 and an air chuck 202. Therefore, even if both are combined, it can be manufactured at low cost. However, the falling distance from the stopper 11 into the magazine storage section 7 is sufficiently small compared to the falling distance from the automatic supply section 1. Yotsute Stoppa 11
The attitude of the magazine 2 does not change while falling from the magazine 2, and the magazine 2 can be stored in the storage part 7 with its orientation accurately aligned.

[Brief explanation of the drawing]

Figure 1 is a perspective view for explaining the overall structure of the IC testing device according to this invention, Figure 2 is a perspective view for explaining the structure of the magazine used in the IC testing equipment, and Figure 3 is according to this invention. A perspective view for explaining the main parts of the IC testing device, FIG. 4 is a side view for explaining the operation of the first attitude detection means used in this invention, and FIG. 5 is a second attitude used in this invention. FIG. 6 is a side view for explaining the operation of the detection means, and FIG. 6 is a front view of the state shown in FIG. 5 when viewed from the front side. 1: IC automatic supply unit, 2: Magazine, 3: IC,
4: Measuring section, 6: Shoot, 7: Magazine storage section, 8: Automatic storage section, 11: Stopper, 12: Magazine press, 100: Posture detection means, 110:
First attitude detection means, 120: second attitude detection means,
200: Attitude driving means.

Claims (1)

[Scope of utility model registration request] Automatic IC where multiple magazines containing ICs are installed, and ICs are taken out from the magazines and supplied to the measurement unit.
In an IC testing device having a supply section, in which an empty magazine is dropped into a chute in this automatic IC supply section, and the empty magazine is conveyed to a magazine storage section through the chute, a , a first magazine attitude detection means consisting of a light source and a light receiver; a second magazine attitude detection means consisting of a check plate that advances and retreats along the axial direction of the magazine; a light source and a light receiver; An IC testing device comprising a detection means and a magazine attitude drive means consisting of a pulse motor and an air chuck rotated by the pulse motor.