JP3271017B2 - Electronic component handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for handling electronic components, for example, a device used for transporting an electronic component, which has undergone a characteristic inspection process, to a marking station.

[0002]

2. Description of the Related Art Some electronic components, such as high-frequency transistors, have variations in characteristics despite undergoing the same manufacturing process. Instead of shipping the product as it is, it may be possible to classify components with a certain characteristic tendency, and to make electronic components in the group thus classified have almost constant characteristics. . In this case, different types of electronic components may be marked differently to distinguish them.

Conventionally, when a different marking is provided for each of the electronic components classified as described above, the electronic components are grouped according to the result of the characteristic measuring process, and the marking is performed for each group. Was. Then, the handling for classifying the electronic components according to the measurement result and the handling for marking the electronic components classified in this way become separate mechanisms, and as a whole, the manufacturing device of the electronic component becomes complicated, And it has to be larger. In addition, in the marking process, it is very time-consuming, for example, to change a different stamp for each of the grouped characteristics.

[0004] The same can be said when changing the production lot. In other words, when the production lot is changed, it is necessary to make a mark indicating a different lot number,
Also in this case, it is necessary to temporarily stop the marking device and change the marking stamp.

The present invention was conceived in view of the above circumstances, and simplifies the transportation of electronic components to a marking station when different markings need to be made. It is an object of the present invention to provide an electronic component handling apparatus that can simultaneously achieve high efficiency of a marking operation.

[0006]

Means for Solving the Problems To solve the above problems, the present invention takes the following technical means. In other words, the electronic component handling apparatus according to the present invention includes a slide moving body that is controlled to move along a horizontal linear transport path by a slide mechanism, and an electronic component on a marking station that is horizontally separated from a predetermined receiving station. An adsorbing collet supported to be vertically movable with respect to the slide moving body so as to be transported, and an up-moving position and a down-moving position are selected, and the conveying collet supported by the slide moving body and viewed in a plan view. By being arranged on a straight line that is parallel to the path and passes through the axis of the suction collet, it can be arranged directly above the electronic component on the marking station by horizontal movement of the slide moving body, and It is vertically movable with respect to the slide moving body so that a mark can be made on a part, and an upper moving position and a lower moving position It is characterized in that it comprises a a plurality of indicia stamp is selected individually to.

[0007]

The slide moving body is controlled to move along a horizontal linear transport path, and the suction collet supported by the slide moving body can be selected from an upper moving position and a lower moving position. For example, the electronic components on the receiving station can be sucked by a suction collet and conveyed horizontally, for example, onto a marking station. That is, after moving the slide moving body onto the receiving station to lower the suction collet and suck the electronic component by the suction force, the suction collet is moved upward and the slide moving body is moved in the horizontal direction, By moving the suction collet down again on the marking station to release the suction force, the electronic component can be conveyed as described above.

[0008] In addition to the suction collet, the slide moving body is provided with a plurality of marking stamps which are individually moved up and down. Moreover, these marking stamps are arranged in a straight line along with the suction collet along the transport path of the slide mechanism. Therefore, when the electronic component is placed on the marking station as described above, the sliding movable body is slid by a predetermined distance so that the selected marking stamp is directly above the electronic component on the marking station, By moving the marking stamp downward, a predetermined marking can be made on the surface of the electronic component.

For example, when handling a high-frequency transistor or the like having a variation in performance characteristics, this transistor is classified according to characteristics that are graded according to the measurement result, and a mark indicating the graded characteristics is provided. It is very advantageous to use the handling device of the present invention when performing this.

That is, when each transistor is sequentially transferred from the receiving station to the marking station, and the marking corresponding to the characteristics of the transistor is performed, after the transfer to the marking station, the marking is performed according to the measurement result. The stamp is selected, and the slide moving body is moved so that the selected stamp is positioned on the electronic component on the marking station, and then the selected stamp is moved down. . Accordingly, in a case where electronic components having different characteristics are mixedly manufactured in a series, the operation of marking a characteristic difference for each staged characteristic can be performed very efficiently. This can be understood from the fact that the operation is simplified by comparing with the conventional method in which the characteristics are first classified and the marking is performed for each classified classification.

If a plurality of marking stations are arranged along the transport path of the slide mechanism according to the expected number of classifications, physical classification according to the measurement results can be performed simultaneously. .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings. As shown in FIGS. 1 to 3, an electronic component handling apparatus 1 of the present invention
A suction moving collet 4 driven up and down reciprocally, and a plurality of marking stamps 5a and 5b each driven up and down reciprocally on a slide moving body 3 which is moved on a horizontal linear conveyance path by a slide mechanism 2. , 5c, 5d. The suction collet 4 and each of the marking stamps 5a, 5b, 5c, 5d are arranged on a straight line parallel to the transport path of the slide mechanism 2 in plan view.

The slide mechanism 2 includes a guide rail 6 having a U-shaped cross section and a horizontally open cross section extending linearly in the horizontal direction.
And a slider 7 slidably fitted in a channel of the guide rail 6.
On the other hand, the movement is controlled by rotating a ball screw 8 screwed in a penetrating manner by a stepping motor (not shown) or the like.

The slide moving body 3 is fixedly attached to the slider 7 of the slide mechanism 2. In the present embodiment, the slide moving body 3 is formed of a plate-like body having a rectangular shape as viewed from the front as shown in FIG. 1, and the upper rear surface thereof is fixed to the slider 7.

The suction collet 4 is supported so as to be vertically reciprocable and rotatable with respect to a bracket 10 projecting from a side surface of the slide moving body 3. As shown in detail in FIG. 2, a cylindrical collet holder 11 having a vertical axis is
And a collet shaft 13 is inserted into the collet holder 11 via a ball spline 14 so as to be slidable in a reciprocating manner with low friction in the up-down direction and unable to rotate relative to the collet holder. .
A nut 15 is screwed into the upper end of the collet shaft 13 to form a large-diameter portion, and a slide urged upward by a compression coil spring 17 disposed between the collet shaft 13 and a retaining ring 16 below the nut 15. A washer 18 is inserted.

A horizontal tip fork 20 of a collet vertical pusher 19 is fitted between the nut 15 and the slide washer 18. The collet vertical pusher 19 is driven up and down to form the collet shaft. 1
3 is moved up and down. The downward movement of the collet up / down pusher 19 is transmitted to the collet shaft 13 via the compression coil spring 17, so that the compression coil spring 17 provides a cushion against upward external force acting on the collet 4. Function will be demonstrated.

The above-mentioned collet vertical pusher 19 is guided so as to be vertically movable with respect to the slide moving body 3, and has a cam 23 which is rotated by a rotary actuator 22 or the like with respect to a roller-like cam follower 21 mounted thereon. The contact is made to drive up and down. A pulley 25 having a large diameter formed on the upper part of the collet holder 11, a slide movable body 3, and a pulley 26 of an output shaft of a motor 24 mounted on the back side.
Between them, the timing belt 27 is wound, and therefore, by controlling the rotation of the motor 24,
The collet holder 11 or the collet shaft 13 is rotated as desired.

On the other hand, four stamp holding blocks 29a, 29b, 29c, 29d arranged at equal intervals are provided on the guide bracket 28 provided on the slide moving body 3.
Each of them is attached to a spring 30 (see FIG. 3) so as to be vertically movable by a predetermined distance while being constantly urged upward. As shown in FIG. 3, each stamp holding block 29
A push pin 33 constantly urged upward by a spring 32 is attached to an extension portion 31 that extends horizontally above the upper portions a, 29b, 29c, and 29d. Is pressed downward by the piston rods 35 of the air cylinders 34a, 34b, 34c, 34d disposed above the stamp cylinders, so that the stamp holding blocks 29a, 29b, 29c, 29d move downward against the springs 32. It is pushed in the direction.

Of course, the elasticity of the spring 32 for urging the push pin 33 upward is set to be greater than the elasticity of the spring 30 for urging each stamp holding block 29a, 29b, 29c, 29d upward. I have. However, when the stamp holding block 29a, 29b, 29c, 29d is in the lower position by being pressed by the piston rod 35, when the stamp holding block is subjected to a predetermined or more upward external force, the above push pin The blocks 29a, 29b, 29c, and 29d are elastically retracted upward by the compression deformation of the spring 32 that biases 33, thereby exhibiting a cushioning function.

Each of the stamp holding blocks 29a, 29b,
On the lower surfaces of 29c and 29d, respectively, a stamp 5
a, 5b, 5c and 5d are attached. The mounting positions of the marking stamps 5a, 5b, 5c and 5d in the plane direction are on a straight line that passes through the axis of the suction collet 4 and is parallel to the transport path of the slide mechanism in plan view.
Therefore, the adsorption collet 4 and each stamp 5
a, 5b, 5c, and 5d are located side by side in a straight line parallel to the sliding direction of the slide mechanism in plan view.

A stepping motor for driving the ball screw 8 of the slide mechanism, a rotary actuator 22 for vertically driving the suction collet 4, and an air cylinder for vertically driving each stamp holding block 29a, 29b, 29c, 29d. 34a, 34b, 34c,
34d are all controlled by a control device (not shown).

Next, a case will be described in which the handling device 1 having the above-described configuration completes the characteristic measurement, and performs a marking indicating the classification while classifying the electronic components P having variations in the characteristics step by step. The operation will be described with reference to the schematic diagram of FIG. The electronic component P that has been subjected to the characteristic measurement by the measuring device (not shown) is transported onto the receiving station 36 by another transport mechanism. At this time, the measurement data of the electronic component has already been input into the control device that controls each driving member of the handling device of the present invention, and it has been determined which classification the electronic component belongs to.

Electronic component P on receiving station 36
Moves the entire slide moving body 3 in the horizontal direction to position the suction collet 4 directly above the electronic component P on the receiving station 36, thereby moving the suction collet 4 downward and applying a suction force. Thus, it is held by suction.

Then, as shown by a virtual line in FIG.
Four marking stations 37a, 37b, 37c, 37
The electronic component P is conveyed to a marking station corresponding to the classification in which the electronic component P is to belong, among d. Then, the mark stamp (5a, 5b, 5
c, or 5d) is selected, the slide movable body 3 corresponding to the distance between the selected marking stamp and the suction collet 4 is moved in the opposite direction, and the selected marking stamp is moved. It is located directly above the electronic component P placed on the marking station. Then, the marking stamp is moved downward, and marking is performed on the surface of the electronic component P.

In addition, the ink is applied to the selected marking stamp by the slide moving body 3 from the receiving station 36 to the marking stations 37a, 37b, 37.
In the process of moving to steps c and 37d, this is carried out by bringing the above-mentioned marking stamp into downward contact with a stamp table arranged at an appropriate position.

In the drawing, reference numeral 38 denotes a CCD camera mounted on the slide moving body 3, and its optical axis is also determined in plan view by the suction collet 4 and the marking stamps 5a, 5b, 5c. , 5d are arranged on the same straight line, and by appropriately moving the slide movable body 3, the marking station 37 is moved by the suction collet 4.
Electronic components P conveyed on a, 37b, 37c, 37d
Or an inspection of the suitability of the mark on the electronic component.

In this embodiment, since the suction collet 4 is not only driven up and down but also driven to rotate, the receiving station 36 moves from the receiving station 36 to the marking stations 37a, 37b, 37c and 37d. During the transportation, the attitude of the electronic component P in the θ direction can be adjusted as desired.

As described above, according to the handling device of the present invention, the operation of classifying the electronic components into each of the characteristics classified based on the measurement results and performing the marking corresponding to the classification is performed. It can be performed very efficiently.

Of course, the scope of the present invention is not limited to the above embodiment. Specific configuration of the slide mechanism, specific configuration for vertically moving the suction collet,
The specific configuration for driving each marking stamp up and down is:
It goes without saying that various changes can be made.

Further, the control method of the slide mechanism, the suction collet, and the marking stamps can be variously changed as necessary. That is, in the above description, a control example in which electronic components are classified for each of the characteristics classified into stages based on the measurement results and a mark indicating the classification is automatically performed has been described. The invention of the present application is also applicable to a case where a plurality of types of lots are continuously manufactured according to the change of the shipping destination, and the classification is performed and the mark indicating the lot number is performed according to the change of the lot. Can be effectively used.

Further, in the embodiment, by setting a plurality of marking stations according to the number of classifications, different markings are performed for each classification, and at the same time, physical classification is performed. A case where a single marking station is used and physical classification is performed in another subsequent step is of course included in the scope of the present invention. Also, the number of marking stamps to be supported by the slide moving body,
It can be changed as needed.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of an embodiment of an electronic component handling apparatus according to the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an explanatory diagram of an operation example of the embodiment.

[Explanation of symbols]

 2 Slide mechanism 3 Slide pusher 4 Suction collet 5a, 5b, 5c, 5d Marking stamp

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G01R 31/26 H01L 21/66-21/68

Claims (1)

(57) [Claims] 1. A slide moving body whose movement is controlled in a horizontal linear transport path by a slide mechanism, and an electronic component in a horizontal direction from a predetermined receiving station.
As can be transported on the indicia station away, is vertically movably supported relative to the sliding body, a suction collet chosen the upward position and downward position, it is supported on the slide mobile And the slide transfer mechanism is arranged on a straight line that is parallel to the transport path in a plan view and passes through the axis of the suction collet.
The horizontal movement of the moving object causes the electronic
It can be placed directly above components, and can be connected to the above electronic components.
Up and down with respect to the slide moving body so that
And a plurality of marking stamps that can be moved in the direction and select an up- moving position and a down-moving position, respectively.