JPH028892Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" This invention relates to an IC transport device used in an IC testing device.

``Prior Art'' IC testing equipment sorts ICs that have been tested into good and bad. This sorting is IC among the best.
For example, it is classified into upper, middle, and lower depending on the difference in response speed. Among defective cells, for example, in the case of memory cells, cells are sorted into top, middle, and bottom depending on the number of defective cells.

At the part where this sorting is done,
Once the IC is received, the IC is transported in a direction perpendicular to the sliding direction of the IC, transported to the desired position among the multiple IC drop ports installed in parallel, and at that position, the IC is dropped into the IC drop port. The ICs mentioned above are sorted.

Figure 5 shows the IC transport device used in the IC testing equipment. In the figure, 1 indicates the IC outlet of the IC testing equipment. The tested IC2 slides under its own weight and is discharged from this IC discharge port. The IC 2 discharged from the IC discharge port 1 is given to the IC transport device 3.

In the IC transport device 3, an IC holder 5 is attached to an endless timing belt 4 at a predetermined pitch.
By rotating the pulley 6 by the arrangement pitch of the IC holder, the timing belt 4 rotates, and the IC
The structure is such that the holder 5 is moved laterally. Although the lower end of the IC holder 5 is omitted in Figure 5, it is closed by a closing plate extending from the fixed part.
The structure is such that IC2 does not fall out.

An IC storage section 7 is provided below the transport device 3 . This IC storage section 7 has multiple IC rails 7A, 7
B, 7C, 7D..., and each upper end of the plurality of IC rails 7A to 7D serves as an IC drop port. The IC holder 5 containing the IC is sequentially placed on each IC rail 7A to 7D.
When the IC rails 7A to 7D reach the position facing the upper ends, the shutter plates that keep the upper ends of the IC rails 7A to 7D cool are opened to sort and store the ICs in the desired IC rails.

Conventionally, when attaching the holder 5 to the timing belt 4, an attaching structure as shown in FIGS. 6 and 7 has been adopted. In the example shown in FIG. 6, a projection 4A is integrally formed on the outer surface of the timing belt 4, a support 9 is attached to the projection 4A, and an IC holder 5 is attached to the support 9. show.

In addition, in the example shown in FIG. 7, the timing belt 4 has holes 4.
A screw is passed through the hole 4B to connect the holder 5 and the fixing block 10, and the IC holder 5 is attached to the timing belt 4.

``Problems to be Solved by the Invention'' The conventional IC holder mounting structure shown in FIG. 6 requires the use of a specially made timing belt in which a protrusion 4A is formed on the timing belt 4. These specially made timing belts are expensive. Therefore, the cost of the IC transport device itself increases, and the overall price also becomes expensive.

Further, according to the structure shown in FIG. 7, a hole 4B must be formed in the timing belt 4. If the accuracy of the position of the hole 4B is poor, the arrangement pitch of the holder 5 will be irregular, resulting in an inconvenience that the holder 5 will not be aligned with the IC discharge port 1 and each IC drop port. Further, it is necessary to form the holes 4B in the timing belt 4, which is troublesome.

``Means to solve the problem'' This idea uses a timing belt, an IC holder,
This invention relates to an IC transport device consisting of a pulley.

The timing belt has an uneven surface on its inner periphery.

The above-mentioned IC holder includes an elongated plate-shaped substrate, an IC rail that is formed to protrude from the front surface of the substrate along its longitudinal direction, and an IC rail that is disposed along the longitudinal direction facing the back surface of the above-mentioned substrate. a strip body having a convex surface with a cross-sectional shape substantially equal to that of the concave portion of the timing belt; A connecting member that integrally connects the central part of the convex surface of the body along the longitudinal direction, and both ends of the connecting member are cut out to a predetermined length, and are formed between the back surface of the substrate and the strip body. It has a pair of cut grooves.

The pulley has an uneven surface on its outer periphery, and drives the timing belt by engaging the uneven surface with the uneven surface of the timing belt.

A plurality of pairs of the above-mentioned pulleys are arranged to face each other on the left and right so that their uneven surfaces are symmetrical to each other, and the above-mentioned timing belt is attached to each of the left and right pulleys, and the opposing concave surfaces of the left and right timing belts The pair of grooves of the IC holder are inserted into the IC holder, and the convex surfaces of the strip are engaged with each other, so that the IC holder is locked to the pair of timing belts.

(Function) According to the structure of this invention, the mounting precision of the IC holder 5 is determined by the precision of the uneven surface of the timing belt 4. This allows for accurate installation. However, the timing belt 4 does not require any special structure for attaching the IC holder 5. Therefore, as the timing belt 4, a commonly available one can be used. Also timing belt 4
It is also easy to manufacture since there is no need to add any processing to it.

"Embodiment" An embodiment of this invention is shown in FIGS. 1 to 4. 3 and 4 show the IC holder used in this invention. In this example, the IC holder 5 has a plurality of protrusions 5A, 5B, 5C, and 5D in the groove, and by selecting any pair of the plurality of protrusions 5A to 5D, ICs of various standards can be used. This example shows the use of IC rails that can be guided by sliding.

A strip body 11 is provided to protrude from the bottom of the IC rail constituting the IC holder 5 to the back side. This strip body 11 is provided protrudingly through a connecting member 12 corresponding to the thickness of the timing belt 4. The convex surface 11A of the strip body 11 on the side communicating with the connecting member 12 is made to match the cross-sectional shape of the concave surface 4C (FIG. 2) of the uneven surface of the timing belt 4.
Cut grooves 13 are formed at both ends of the connecting member 12, as shown in FIG. The timing belt 4 is inserted into this groove 13 as shown in FIG. The position where the cut groove 13 can be inserted is the timing belt 4
is the position of the concave surface 4C, and the convex surface 11 of the strip body 11
Because A matches the cross-sectional shape of concave surface 4C
The IC holder 5 is accurately positioned and attached depending on the position of the concave surface 4C of the timing belt 4. Attach the timing belts 4 to both sides of the IC holder 5, and use the two timing belts 4 to connect the IC.
The holder 5 is supported and moved. Even if the timing belt 4 is divided into two parts, the positions of the uneven surfaces of the two timing belts 4 are aligned by the teeth of the pulley 6. Therefore, the IC holder 5 is movably supported while remaining parallel to the axis of the pulley 6.

The IC holder 5 is attached to the pulley 6 as shown in Figure 2.
A concave groove 15 is formed at a pitch equal to the mounting pitch of , and the strip body 11 is housed in the concave groove 15 so that the IC holder 5 can pass around the pulley 6. Further, a flange 16 is formed on the outer surface of the pulley 6, and the structure is such that the flange 16 prevents the timing belt 4 from coming off to the outside.

"Effect of the invention" As mentioned above, according to this invention, the IC holder 5
can be attached to the timing belt 4 by simply inserting the cut groove 13 into the concave surface 4C of the timing belt 4. This makes assembly easy.

Furthermore, since the mounting position of the IC holder 5 is mounted with the accuracy of the uneven surface of the timing belt 4, that is, the arrangement pitch of the teeth, even when a plurality of IC holders 5 are mounted, the arrangement pitch of the IC holder 5 can be mounted with high precision.

Furthermore, since there is no need to perform any processing on the timing belt 4, a generally commercially available timing belt can be used as is. Therefore, it can be made cheaply.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing an embodiment of this invention, Figure 2 is a side view illustrating the shape of the timing belt driving pulley used in this invention, and Figure 3 is the structure of an IC holder used in this invention. FIG. 4 is a front view of the IC holder used in this invention, FIG. 5 is a perspective view of the IC transport device, and FIGS. 6 and 7. 1 shows a perspective view for explaining the structure of a conventional IC transport device. 4: Timing belt, 4C: Concave surface of timing belt, 5: IC holder, 6: Pulley, 11:
Strip body, 12: Connecting member, 13: Cut groove, 15: Concave groove, 16: Flange.

Claims (1)

[Claims for Utility Model Registration] An IC transport device comprising a timing belt, an IC holder, and a pulley, the timing belt having an uneven surface on its inner periphery, and the IC holder having an elongated plate-like substrate. an IC rail protruding from the surface of the substrate along its longitudinal direction; and an IC rail disposed facing the back surface of the substrate along its longitudinal direction, the opposing surface of which is approximately the same as the concave portion of the timing belt. A strip body with a convex surface having the same cross-sectional shape, and a strip body having approximately the same thickness as the center part of the concave surface part of the timing belt, and a back surface of the substrate and the center part of the convex surface of the strip body in the longitudinal direction. and a pair of grooves formed between the back surface of the substrate and the strip by cutting out a predetermined length at both ends of the connecting member. The pulley has an uneven surface on its outer periphery, and drives the timing belt by engaging the uneven surface with the uneven surface of the timing belt, and the plurality of pairs of the pulleys have uneven surfaces that are aligned with each other. The timing belts are arranged symmetrically facing each other on the left and right sides, and the timing belts are attached to the left and right pulleys, respectively, and the pair of grooves of the IC holder are inserted into the opposing concave portions of the left and right timing belts. The IC transport device is characterized in that the IC holder is locked to the pair of timing belts by engaging the convex surfaces of the strip body with the timing belts.