JP2002107420A - Test board fitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit a test board different in thickness to a test head and facilitate the fitting work of the test board different in thickness. SOLUTION: This test board fitting device 1 for fitting the test board 4 to the test head 2 is provided with a conversion ring 3 having the test board installed on it and to be fitted to the test head, a fixed ring 5 holding the test board in an installed state on a fitting section, and a fixing means fixing a holding section to the fitting section at a holding position corresponding to the thickness of the test board.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a test board mounting apparatus for mounting a test board corresponding to a device under test on a test head.

[0002]

2. Description of the Related Art When testing a device such as an IC (Integrated Circuit) chip, a device to be measured is brought into contact with a test board connected to a test head, and a test signal is input to the device to perform a test. It is well known to do so.

In such a structure for attaching a test board to a test head, for example, as disclosed in Japanese Patent Application Laid-Open No. 10-260229, a test board to be contacted with a device to be measured is integrated with the test board. The test head is detachably mounted via a fixing ring provided in the test head. That is, when the test board is attached to the test head via the fixing ring, the pogo pins at the upper end of the test head make electrical contact with the test board, and the device under test is inspected via the test board.

[0004] The test board has different patterns and plate thicknesses to be brought into contact with the device depending on the type of the device to be measured, such as the number of pins and the number of dots, and also has a different mounting structure to the test head. For example, when measuring devices of different types with different numbers of pins, while attaching a conversion ring provided with a conversion board for converting the number of pins to the test head, the test board to be contacted with the device to be measured is formed in a disk shape,
There is a structure in which a fixing ring is put on the test board from above, and the fixing ring is fixed to the conversion ring of the test head and electrically connected. The fixing ring having this structure has an upper surface portion in contact with a surface edge portion of the test board and a cylindrical outer peripheral wall portion at an outer edge of the upper surface portion. A notch is provided on the outer peripheral wall, and this notch is fitted inside the roller provided on the conversion ring, so that the upper surface of the fixing ring is fixed with the test board in contact with the conversion ring. I do.

[0005]

By the way, in a structure in which a test board is attached to a test head via a conversion ring, for example, the number of pins is set to 1 in accordance with a device to be measured.
When the number of pins is converted, for example, from 024 pins to 512 pins, and a test board having a different thickness corresponding to the device to be measured is mounted on the test head, the test board is adjusted to the different thickness of the test board. It is necessary to prepare a dedicated fixing ring for each test board. Therefore, when inspecting a plurality of devices of different types, it is necessary to change the fixing ring together with the test board, which is troublesome. In addition, it is necessary to stock test boards for each type of device to be measured, and it is necessary to stock a dedicated fixing ring for each test board. Bulk when stored. Therefore, it is desirable that these test boards and fixing rings can be stored in a bulky place in order to store more test boards and fixing rings in a storage place. An object of the present invention is to easily attach test boards having different thicknesses to a test head and to easily attach test boards having different thicknesses.

[0006]

In order to solve the above-mentioned problems, a first embodiment of the present invention is a test board mounting apparatus for mounting a test board 4 to a test head 2 as shown in FIGS. 1, the test board is installed on an upper part, and a mounting part (for example, a conversion ring 3) mounted on the test head, and a holding part (for example, a holding part for holding the test board installed on the mounting part)
A fixing ring 5) and fixing means 7 for fixing the holding portion to the mounting portion at a holding position corresponding to the thickness of the test board.
And characterized in that:

The test board is electrically connected to the test head when mounted on the test head via a test board mounting device. The test head is electrically connected to an IC tester. Therefore, the test board is mounted on the test head, and the device to be measured is mounted via an auto-handler or a socket, so that the electrical characteristics of the device are measured. Further, the test board has different patterns and plate thicknesses that are in contact with the device depending on the type of device such as the number of pins and the number of dots of the device to be measured. Thereby, the mounting portion may be provided with a board for converting the number of pins of the device to be measured. In the case of a configuration where a board that converts the number of pins of the device to be measured is provided in the mounting section, first, the mounting section is mounted on the test head to change the number of signal pins corresponding to the number of pins of the device to be measured. Then, a test board corresponding to the number of pins can be attached. The fixing means fixes the holding portion for holding the test board to a holding position corresponding to the thickness of the test board, and the test board is fixed to the mounting portion by the fixed holding portion.

According to the first aspect of the present invention, the test board is mounted on a mounting portion mounted on a test head.
Since the holding means is held by the holding portion fixed at a holding position corresponding to the thickness of the test board by the fixing means, a plurality of test boards having different plate thicknesses are respectively attached to the test head in a suitable state according to the thickness of the test board. be able to. Therefore, when mounting test boards having different plate thicknesses, unlike the related art, it is not necessary to prepare a fixing member (fixing ring) for each test board, and the work is easy, and a space for storing the fixing member for the measurement work is provided. Is no longer necessary.

According to a second aspect of the present invention, in the test board attaching apparatus according to the first aspect, for example, as shown in FIG. 1, the fixing means 7 includes the attaching portion (conversion ring 3) and the holding portion (fixing ring). 5) (for example, the fixing holes 72a to 7) provided in one of the holes (for example, the conversion ring 3).
2g), and a protrusion (for example, a stopper 71) provided on one of the other (for example, the fixing ring 5) and capable of being fitted into the hole, and one of the hole and the protrusion is plural. One of the plurality of holes and protrusions provided is fitted to the other, thereby fixing the holding portion at a holding position corresponding to the thickness of the test board.

According to the second aspect of the invention, the same effect as the first aspect of the invention can be obtained, and the fixing means is provided in each of one of the plurality of holes and the projections. The holding portion can be fixed at a position corresponding to the thickness of the test board simply by fitting the holding member with the other.

[0011] The invention according to claim 3 is the invention according to claim 1 or 2.
In the test board mounting apparatus described above, for example, as shown in FIG. 1, guide means for guiding the holding part to a position where the fixing means can be fixed by rotating the holding part and the mounting part relatively. 6 is provided.

According to the third aspect of the invention, the same effects as those of the first or second aspect can be obtained, and the guide means relatively rotates the holding portion and the mounting portion. By guiding the holding portion to a position where the fixing means can be fixed, the holding portion and the mounting portion can be relatively rotated only by rotating the holding portion to the thickness of the test board by the fixing means. Can be fixed at the appropriate position.

According to a fourth aspect of the present invention, in the test board attaching apparatus according to the third aspect, for example, as shown in FIG. 1, the guide means may be any one of the holding portion and the attaching portion which are relatively rotatable. A taper portion 611 extending in the circumferential direction and inclined in the axial direction on one side, and a sliding portion (for example, the roller portion 62) provided on the other side and sliding on the taper portion, The sliding portion slides on the tapered portion to guide the holding portion to a position where the fixing means can be fixed.

According to the fourth aspect of the present invention, the same effect as that of the third aspect of the invention can be obtained, and the holding portion and the mounting portion are relatively rotated to allow the holding portion to be rotated. The guide means for guiding the fixing means to a fixable position guides the holding portion to a position which can be fixed by the fixing means by sliding the sliding portion on the taper portion. By simply sliding the sliding portion, the holding portion can be fixed at a holding position corresponding to the thickness of the test board held by the holding portion.

More specifically, the tapered portion may have any configuration as long as it extends in the circumferential direction and is inclined in the axial direction. A notch may be formed in any one of the holding portions, and may be formed as a part of the inner edge of the notch portion.In addition, an outer circumferential surface or an inner circumferential surface of any one of the mounting portion and the holding portion may be formed. It may be formed in a flange shape.

According to a fifth aspect of the present invention, in the test board mounting apparatus according to any one of the first to fourth aspects, for example, as shown in FIG. At the time of mounting on the test head, a reference hole (for example, a guide pin 22) provided on the test head is inserted, and a mounting hole (for example, a positioning hole 41) for determining a mounting position on the test head is provided on the lower surface. When attaching the attachment portion to the test head, a visual window portion (for example, the attachment window portion 37) is provided so that the state of insertion of the reference pin into the attachment hole can be visually recognized.

According to the invention described in claim 5, claims 1 to
4. The same effect as the invention described in any one of 4 above can be obtained, and when the mounting portion is mounted on the test head via the viewing window 37, the insertion state of the reference pin in the mounting hole, that is, The state of engagement between the reference pin and the mounting hole can be visually recognized, and the mounting portion can be mounted on the test head by easily inserting the reference pin into the mounting hole.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, the schematic configuration will be described.
As shown in FIGS. 1 and 2, a conversion ring 3 attached to the test head 2, a fixing ring (holding portion) 5 for fixing a test board 4 installed on the conversion ring 3 to the conversion ring (attachment portion) 3, Guide means 6 (notch 61 / roller part 62), fixing means 7 (stopper part 71 / fixing hole 72)
Thus, the test board mounting apparatus 1 to which the present invention is applied is configured. The test head 2 measures the electrical characteristics of the IC via a pogo pin ring 21 connected to an IC tester (not shown). The pogo pin ring 21 in this embodiment is compatible with 1024 pins, and a 1024-pin device measurement test board can be directly mounted.

The pogo pin ring 21 includes an annular inner ring portion 21a in plan view and an annular outer ring portion 21b provided on an outer peripheral edge of the inner ring portion 21a. A plurality of guide pins 22 protruding upward are provided on the outer peripheral edge of the outer ring portion 21b. In this embodiment, the guide pins 22 are spaced apart from each other by a predetermined distance.
Are arranged. The guide pin 22 is inserted into a mounting hole 31 (see FIG. 8) of the conversion ring 3 mounted on the pogo pin ring 21, and is positioned so that the conversion ring 3 can be accurately mounted in electrical contact with the pogo pin ring 21. Do. The mounting holes 31 are formed in the conversion board 34 corresponding to the guide pins 22 so as to form a bottom portion of the conversion ring 3, specifically, a bottom surface portion.

The conversion ring 3 has a cylindrical main body 32 as shown in FIGS. 1 to 8, and upper and lower surfaces 33 of the main body 32.
34 has contact surfaces that are electrically connected to each other. In this embodiment, the contact surface of the lower surface of the conversion ring 3 is brought into contact with the pogo pin ring 21 to constitute a conversion board 34 for converting the number of signal pins of the device measured by the test head 2 (FIGS. 2 and 8). reference).

As shown in FIGS. 2 and 3, the contact portion of the annular upper surface portion 33 is provided with a contact 33a which is radially arranged, is in contact with the test board 4, and is connected to the conversion board 34. Have many. Further, an outer peripheral portion 35 constituting an outer peripheral portion of the main body portion 32 in the conversion ring 3 includes:
Roller part 62 fitted into notch part 61 of fixing ring 5, and plunger 71 of stopper part 71 of fixing ring 5
1 is provided with a fixing hole 72 for fixing the fixing ring 5 to the conversion ring 3.

As shown in FIGS. 1, 3 and 4, the roller portion 62 is provided rotatably about a shaft 621 which is provided so as to project radially from the upper edge portion of the outer peripheral portion 35. And rolls along the tapered portion 611 of the notch 61. That is, as the roller portion 62 moves while rolling on the tapered portion 611 of the notch portion 61, the upper surface portion 51 of the fixed ring 5 moves up and down with respect to the conversion ring 3. In this embodiment, three roller portions 62 are provided on the outer peripheral portion 35 at predetermined intervals.

The fixing hole 72 shown in FIG. 1 and FIG.
5 are formed at predetermined intervals. Fixing hole 72
The fixing ring 5 is fixed at a predetermined height by inserting the plunger 711 of the stopper portion 71 of the fixing ring 5. The predetermined height is such that the length between the upper surface 33 of the conversion ring 3 and the lower surface of the upper surface 51 of the fixed ring 5 is the same as the thickness of the test board mounted on the upper surface 33. is there.

That is, the plurality of fixing holes 72 are formed at different positions, and are formed so as to be inclined upward in the axial direction. The inclination is such that the thickness of the test board 4 fixed via the fixing ring 5 is equal to the length from the upper surface 33 to the lower surface of the upper surface 51 of the fixing ring 5 when the plunger 711 is inserted into the fixing hole 72. This corresponds to the inclination of the tapered portion 611 of the notch 61 of the fixing ring 5 described later. As shown in FIGS. 1, 3, and 5, guide pins 331 for positioning the test board 4 are formed on the edge of the upper surface 33 of the conversion ring 3 at predetermined intervals. Are arranged. As shown in FIG. 5, the guide pin 331 is provided in a state of being urged upward by an urging member 331a provided at a lower portion, and is depressed when pressed from above.

Further, a handle portion 36 is provided along the circumference of the outer peripheral portion 35 of the conversion ring 3 and is capable of protruding and retracting upward. That is, as shown in FIG. 6, the handle portion 36 is in a state of being submerged when the test board is mounted, and the like.
When the conversion ring 3 is carried or installed, the conversion ring 3 can be pulled out and used upward (see FIGS. 6C and 6D) to simplify the operation. In addition, when it is submerged, that is, at the time of storage, the hole provided at the lower end of the support member 36a of the handle 36 and the ball plunger 36c provided at the outer peripheral portion 35 are in a lightly engaged state. Therefore, when the handle portion 36 is lowered, the ball plunger 36c becomes a stopper and is inserted into the hole portion to emit a "click" sound, and the state is received, and the state can be confirmed by sound.

At the periphery of the conversion board 34 constituting the bottom surface of the conversion ring 3, as shown in FIG. 8, mounting holes 31 provided corresponding to the guide pins 22 of the test head 2.
Are formed at predetermined intervals.

As shown in FIGS. 1, 3, 7 and 8, when the guide pin 22 is inserted into the mounting hole 31 and is attached to the test head 2 as shown in FIGS. A mounting window (viewing window) 37 is provided to allow the guide pin 22 to be inserted into the hole 31. The mounting window portion 37 includes a viewing portion 371 provided above the mounting hole 31 and desired on the upper surface, and a through hole 372 that communicates with the viewing portion 371 and vertically penetrates the conversion ring 3 to visually check the diameter of the through hole 372. By making the diameter larger than the diameter of the portion 371, the state can be easily seen from the outside. Conventionally, since the mounting window portion 37 was not provided, the worker had to predict and mount both of them, and it was troublesome. In the configuration of the test board mounting apparatus 1, the conversion ring 3 can be easily mounted on the test head 2 through the mounting window 37.

The test board 4 has different patterns and plate thicknesses to be brought into contact with the device to be measured, depending on the type of the device to be measured, such as the number of pins and the number of dots. In this embodiment, the test board 4 is formed in a disk shape. I have. Further, a positioning hole 41 in which the guide pin 331 of the conversion ring 3 is fitted is provided on the peripheral edge portion. And electrically connected to the test head 2. In the case where a plurality of test boards having different plate thicknesses are attached to the test head according to the present embodiment, the respective boards are formed in the same disk shape in plan view and the positioning holes are provided at similar positions in plan view. Configuration. The test board of the present embodiment uses a six-layer test board.

The fixing ring 5 is fitted on the conversion ring 3 by rotating relative to the conversion ring 3, mounted on the conversion ring 3, and the pogo pin ring of the test head 2 via the conversion ring 3. The test board 4 is kept in electrical contact with the test board 21. The fixing ring 5 is shown in FIG.
As shown in FIGS. 2, 9, and 10, an annular upper surface portion 51, a cylindrical outer peripheral wall portion 52 provided to protrude downward from an outer edge of the upper surface portion 51, and an outer side from the upper surface portion 51. An operating rod 53 that protrudes and operates the fixing ring 5, a notch 61 provided on the outer peripheral wall 52, a stopper 71 attached to the outer peripheral wall 52, and the like are provided. When the fixing ring 5 is put on the test board 4 on the conversion ring 3, the upper surface portion 51 comes into contact with the upper peripheral portion 42 of the test board 4. The outer peripheral wall portion 52 is fitted around the outer peripheral portion of the conversion ring 3. In addition, upper surface part 5
A base end portion of an operation rod 53 is fixed to 1, and the operation rod 53 is formed to bend along the surfaces of the upper surface portion 51 and the outer peripheral wall portion 52 and to project horizontally from the center of the outer peripheral wall portion 52. Have been.

Further, an arc-shaped slit portion 512 penetrating vertically is formed in the upper surface portion 51. This slit portion 512 is formed corresponding to the marking portion 38 provided on the upper surface of the conversion ring 3. When the fixed ring 5 is put on the conversion ring 3 and rotated relatively, the slit portion 5 is formed.
The marking part 38 moves within the inside 12. Slit part 51
The height position of the fixing ring 5 holding the test board 4 can be visually recognized based on the position of the marking portion 38 in 2. That is, the upper surface 51 is provided with a plurality of holding position display marks 55 indicating predetermined positions in the slit portion 512 in an arrow shape. When the marking portion 38 is positioned at the position indicated by the holding position display mark 55, the fixing ring 5 Is at a predetermined height position. The holding position display mark 55 is displayed on the conversion ring 3.
The rotation position of the fixing ring 5 rotated with respect to the above is configured in advance so as to be a holding position corresponding to the thickness of the test board 4 to be fixed.

The notch 61 is a roller 62 of the conversion ring 3.
Are formed in the circumferential direction of the outer peripheral wall portion 52. Each notch 61 has a downwardly opened insertion portion 6
12 and a tapered portion 611 that extends from the insertion portion 612 in the circumferential direction and has a rising gradient (inclined in the axial direction) (see FIG. 10A). The insertion portion 612 is in a state where the fixing ring 5 is installed on the conversion ring 3 by fitting the roller portion 62 therein, and the tapered portion 611
The roller unit 62 is guided.

As shown in FIG. 10A, the tapered portion 611 has an upward slope from the insertion portion 612 side to the tip end, and the roller portion 62 rolls on the tapered portion 611. The distance between the upper surface 51 of the fixed ring 5 and the upper surface of the conversion ring 3 changes as the roller 62 rolls on the tapered portion 611. That is, the roller portion 62 extends from the insertion portion 612 toward the back (tip portion) of the tapered portion 611.
Is gradually rolled, the distance between the fixed ring 5 and the conversion ring 3 gradually approaches. In addition, the stopper portion 71 is guided to each fixing hole 72 by the roller portion 62 moving up the gradient of the tapered portion 611 while rolling. The height position of the tip of the tapered portion 611 is the outer peripheral wall 52.
, That is, near the lower surface of the upper surface portion 51. Thereby, when the roller portion 62 is rolled to the tip end of the tapered portion 611, the upper surface portion 51 of the fixed ring 5 and the upper surface portion 33 of the conversion ring 3 are closest to each other as shown in FIG. It is in a state of having been done.

The stopper portion 71 is formed such that the plunger 711 always faces the fixing hole 72 when the roller portion 62 is rolled along the tapered portion 611, and is inserted into the fixing hole 72. Then, the fixing ring 5 is fixed to the conversion ring 3. The stopper 71 is provided as shown in FIG.
As shown in FIG. 7, a plunger 711 that can be moved in and out of the inner surface of the outer peripheral wall portion 52 and a plunger 711 formed integrally with the plunger 711 and rotated to project inward from the inner surface of the outer peripheral wall portion 52. Knob 71 to enable
2 and a stopper body 713 that supports the plunger 711 and the knob 712. The knob 712 and the plunger 711 are integrally provided so as to be coaxial with each other, and are urged inward by an urging member (not shown). The plunger 711 protrudes inward from the inner side surface of the outer peripheral wall 52. .

The plunger 711 includes a stopper main body 71
3, a knob 712 is fixed to the outer end of the outer peripheral wall 52 from the outside to the inside. The knob 712 is movable together with the plunger 711 in the radial direction of the fixed ring 5. When the knob 712 is moved outward, the plunger 711 also moves outward, and the position of the tip of the plunger 711 is outside the inner surface of the outer peripheral wall 52. The knob 712 is formed with a protruding piece 712a that engages with the notch 713a of the stopper body 713 at a position where the tip of the plunger 711 protrudes inward from the inner side surface of the outer peripheral wall 52. . Protruding piece 71
2a is formed to protrude in the direction of the rotation axis of the knob 712, and the notch 713a also extends in the axial direction.

By moving the knob 712 outward, the engagement between the projection 712a and the notch 713a is released, and the knob 712 is rotated to lock the projection 712a on the edge of the notch 713a. By doing so (see FIG. 11B), a state where the plunger 711 does not protrude inward from the inner side surface of the outer peripheral wall portion 52 can be maintained.

Next, the operation of fixing the test board 4 to the test head 2 using the test board mounting apparatus 1 according to the present invention will be described. First, the conversion ring 3 including each board for converting the number of signal pins is arranged on the pogo pin ring 21 of the test head 2. At this time, the operator pulls out the handle portion 36 of the conversion ring 3 upward, grasps the handle portion 36, and confirms the guide pin 22 of the outer ring portion 21b from the mounting window portion 37 so that the guide pin 22 of the conversion ring 3 is attached to the mounting hole 31 of the conversion ring 3. To be positioned at the correct position. As described above, the conversion ring 3 can be arranged on the test head 2 while being visually recognized by the mounting window portion 37, so that the work of mounting the conversion ring 3 is facilitated. At this time, the air between the pogo pin ring 21 and the lower surface portion 34 of the conversion ring 3 is sucked on the test head 2 side, and both are reliably brought into electrical contact.

Next, the test board 4 having a predetermined thickness is fitted into the positioning holes 41 with the guide pins 331 of the conversion ring 3 for positioning, and the test board 4 is mounted on the conversion ring 3. Next, as shown in FIG. 12, with the test board 4 installed on the conversion ring 3, the insertion portion 6 of each notch 61 is inserted.
12, the roller portion 62 of the conversion ring 3 is inserted, and the outer peripheral wall portion 52 of the fixed ring 5 is fitted to the outer peripheral portion 35 of the conversion ring 3 so that the fixed ring 5 is covered from above the test board 4. At this time, the marking portion 38 visible from the slit portion 512 is located at the tip of the slit portion 512 in the rotational direction, and the arrow 55a of the arrow-shaped holding position display mark 55 indicates the position where the fixing ring 5 can be removed (FIG. 11 is not shown). When the fixing ring 5 is mounted, the plunger 711 should not project from the inner surface of the outer peripheral wall 52.

Then, the fixing ring 5 is rotated with respect to the conversion ring 3 by using the operation rod 53 or the like, and the roller portion 62 is rotated.
Is rolled on the tapered portion 611. While the roller portion 62 slides on the taper portion 611, the roller portion 62
11 (see FIG. 13).
The fixing ring 5 is lowered with respect to the conversion ring 3. That is,
The upper surface portion 51 of the fixed ring 5 gradually approaches the conversion ring 3 side, in other words, the test board 4 side. As the roller portion 62 rolls on the tapered portion 611 in this manner, the plunger 711 of the stopper portion 71 of the fixing ring 5 is guided to the predetermined fixing hole 72.

The upper surface 51 abuts on the periphery of the upper surface of the test board 4, and the fixing ring 5 is locked at a position where the back surface of the upper surface 51 abuts on the upper surface of the test board 4 (see FIG. 14). ). Therefore, the stopper portion 71 is in a state of being opposed to the predetermined fixing hole 72 formed corresponding to the thickness of the test board 4. The plurality of fixing holes 72 are formed corresponding to the thickness of the test board 4, respectively. For example, the fixing holes 72 corresponding to the test board 4
Is a fixing hole 72a, when the board is thicker than the test board 4, the stopper portion 71 is disposed to face the fixing holes 72b to 72d before the 72a, and when the board is thinner than the test board 4. Are arranged to face each of the fixing holes 72e to 72g on the back side of the fixing hole 72a. In this embodiment, the fixing holes 72a have a plate thickness of 4.0 mm, and 72b to 72d have plate thicknesses of 3.5, 3.0, and 2.5, respectively.
mm and 72e to 72f are formed so as to correspond to plate thicknesses of 4.5, 5.0, and 5.5 mm, respectively.

The marking part 38 is formed by a slit part 51.
2, it stops at the position indicated by the holding position display mark 55 in which the value corresponding to the plate thickness is described. The arrow of the holding position display mark 55 of this embodiment indicates the slit 512 corresponding to the thickness of the test board 4 to be fixed.
Are provided to indicate the markings 38 located within. That is, as shown in FIG. 9, the arrow 55a is 4.0 mm, and the arrows 55b to 55d are 3.5, 3.0, 2.5 mm, 5
Reference numerals 5e to 55f denote rotation positions of the fixing ring 5 when the plate thickness is 4.5, 5.0, and 5.5 mm, respectively, and when the stopper portion 71 is arranged to face the fixing hole 72a, the holding position display mark 55a indicates the position. Marking part 38 at position
Is located. Thus, the position where the fixing ring 5 holds the test board in a suitable state can be visually recognized. The holding position display mark 55h is in a state where the insertion opening 612 and the roller portion 62 are fitted, that is, the fixing ring 5
Indicates the origin position at which can be raised with respect to the conversion ring 3 and removed from the conversion ring 3.

After confirming that the marking portion 38 is located at the position indicated by the holding position display mark 55 indicating the same numerical value as the thickness of the test board 4, the knob portion 712 of the stopper portion 71 is rotated to project the protrusion. Notch 7
By being engaged with 13 a, the plunger 711 is made to protrude inward from the inner side surface of the outer peripheral wall portion 52 and inserted into the fixing hole 72.

Thus, the fixing ring 5 is fixed to the conversion ring 3 at a predetermined position, and the test board 4 is fixed to the conversion ring 3 with the test board 4 in a suitable state.
When the test board 4 is detached from the conversion ring 3 such as when the test board 4 is replaced, the knob 712 of the stopper 71 is pulled outward in the circumferential direction so that the protruding piece 712a is engaged with the notch 713a of the stopper main body 713. And the plunger 711 is pulled out of the fixing hole 72 by being rotated and locked to the edge of the notch 713a. Then, the fixing ring 5 is rotated in a direction opposite to the previous rotation, that is, counterclockwise in this embodiment, so that the roller portion 62 is moved to the insertion portion 612 and removed by pulling it upward with respect to the conversion ring 3. .

As described above, according to the test board mounting apparatus 1 of the present invention, the test board 4 is connected to the test head 2
When fixing the test board 4, each of the test boards 4 is fixed in a suitable state by the stopper portion 71 and the fixing hole 72 while the upper surface portion 51 is in contact with the upper surface of the test board according to the thickness of the test board 4 to be attached. Therefore, when attaching test boards having different thicknesses to the test head 2 corresponding to a plurality of types of devices, it is not necessary to prepare a fixing ring for each test board having a different thickness as in the related art.

Therefore, it is not necessary to prepare a fixing ring for each test board. When a test board having a different thickness is mounted on the test head 2 via the conversion ring 3, only the test board can be changed and mounted. The operation can be simplified, and it is not necessary to store the fixing ring together with the test board for each test board having a different thickness, and the storage space can be made compact.

When the test board fixed to the test head using the test board mounting apparatus 1 has the largest thickness, for example, 5.5 mm in the above embodiment, the roller of the conversion ring 3 is used. When the part 62 is fitted into the insertion opening 612 of the fixing ring 5, the plunger 711 of the stopper part 71 is made to protrude inward. Since the plunger 711 is urged inward by the urging member, that is, toward the outer peripheral wall 35 side of the conversion ring 3, the roller portion 6
When 2 is rolled on the tapered portion 711, the leading end slides on the outer peripheral wall surface and fits into the first fixing hole 72g. Therefore, the test board can be fixed by fixing the fixing ring 5 at a predetermined height without rotating the knob 712 of the stopper 71.

In the above embodiment, the fixing ring 5 is formed with the cutout 61 having the tapered portion 611, and the conversion ring 3 is provided with the roller portion 62 that slides on the tapered portion 611. However, the present invention is not limited to this, and a configuration in which a taper portion is provided on the conversion ring 3 side and a roller portion that slides on the taper portion of the conversion ring on the fixed ring side may be provided. In other words, the test board may be held by the fixing ring 5 by any guide means as long as the above-described effect is obtained. Also,
The stopper portion and the like may be configured in any manner as long as the test board on the conversion ring can be held by the fixing ring while being electrically connected to the conversion ring. Of course, it can be changed as appropriate.

[0047]

According to the first aspect of the present invention, the test board is fixed on the mounting portion mounted on the test head at the holding position corresponding to the thickness of the test board by the fixing means. Therefore, a plurality of test boards having different thicknesses can be attached to the test head in a suitable state according to the thickness of the test board. It is not necessary to prepare a fixing member (fixing ring) for each board, so that the operation is easy and the space for storing the fixing member for the measurement operation is not required.

According to the second aspect of the present invention, the fixing means only fits each of one of the plurality of holes and the projections with the other, so that the holding portion can be connected to the test board. Can be fixed at a position corresponding to the thickness of the sheet.

According to the third aspect of the present invention, the guide means guides the holding portion to a position where the fixing means can be fixed by relatively rotating the holding portion and the mounting portion. By simply rotating the holding portion and the mounting portion relatively, the holding portion can be fixed at a position corresponding to the thickness of the test board by the fixing means.

According to the fourth aspect of the present invention, the guide means for guiding the holding part to a position where the fixing means can be fixed by rotating the holding part and the mounting part relatively, Since the sliding portion guides the holding portion to a position that can be fixed by the fixing means by sliding the tapered portion, the holding portion is simply moved by sliding the sliding portion on the tapered portion. It can be fixed at a holding position corresponding to the thickness of the test board held by the holding section.

According to the fifth aspect of the present invention, when the mounting portion is mounted on the test head, the state of insertion of the reference pin in the mounting hole is visually recognized through the viewing window, and the mounting hole is mounted. The mounting portion can be mounted on the test head by easily inserting the reference pin into the test head.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an entire test head device including a test board mounting device according to an embodiment to which the present invention is applied.

FIG. 2 is a partially cutaway side sectional view illustrating the configuration of the test board attachment device of FIG.

FIG. 3 is a plan view of a partially broken conversion ring.

4A and 4B are diagrams showing a roller unit provided on a conversion ring, wherein FIG. 4A is an enlarged plan view of the roller unit, and FIG.

5 is a side sectional view showing a schematic configuration of a guide pin in the conversion ring shown in FIG. 3;

FIGS. 6A and 6B are views showing a handle of the conversion ring, and FIG.
Is a side sectional view of the handle portion showing a state in which the handle portion is housed,
(B) is a front cross-sectional view of (a), (c) is a front cross-sectional view showing a state where a handle is pulled out, and (d) is a side cross-sectional view of (c).

FIG. 7 is an enlarged plan view of a mounting window.

FIG. 8 is a bottom view of the conversion ring.

FIG. 9 is a plan view of a fixing ring.

FIGS. 10A and 10B are views for explaining a fixing ring; FIG. 10A is a side view, and FIG.

FIGS. 11A and 11B are enlarged side views of the stopper portion, wherein FIG. 11A is a diagram illustrating a state in which the plunger is projected inward, and FIG. 11B is a diagram illustrating a state in which the plunger is not projected.

FIG. 12 is a perspective view showing a state where a fixing ring is put on a conversion ring in order to attach a test board to a test head using a test board attaching device.

FIG. 13 is a side view of the fixing ring showing a relationship between a roller portion and a tapered portion when the fixing ring is rotated with respect to the conversion ring.

FIG. 14 is a perspective view showing a state where a test board is attached to a test head via a test board attaching device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Test board mounting apparatus 2 Test head 3 Conversion ring (mounting part) 4 Test board 5 Fixing ring (holding part) 6 Guide means 7 Fixing means 22 Guide pin (reference pin) 31 Mounting hole 37 Mounting window (viewing window) 62 Roller part (sliding part: guide means) 71 Stopper part (fixing means) 72 Fixing hole (fixing means) 72a to 72g Fixing hole 611 Taper part (guiding means)

Claims (5)

[Claims] 1. A test board mounting apparatus for mounting a test board on a test head, wherein the test board is mounted on an upper portion, and a mounting portion mounted on the test head; and a test board mounted and held on the mounting portion. And a fixing means for fixing the holding portion to the mounting portion at a holding position corresponding to the thickness of the test board. 2. The test board mounting apparatus according to claim 1, wherein the fixing means is provided in one of the mounting portion and the holding portion, and the other is provided in one of the other. A plurality of ones of the hole and the protrusion are provided, and one of the plurality of holes and the protrusion is fitted to the other to thereby provide a test board. A test board mounting device for fixing the holding portion at a holding position corresponding to the thickness of the test board. 3. The test board mounting apparatus according to claim 1, wherein the holding unit and the mounting unit are relatively rotated to guide the holding unit to a position where the fixing unit can be fixed. A test board mounting device, characterized by comprising means. 4. The test board mounting device according to claim 3, wherein the guide means extends in one of the holding portion and the mounting portion which is relatively rotatable in a circumferential direction and is inclined in an axial direction. And a sliding part provided on the other side and sliding on the tapered part, wherein the fixing part fixes the holding part by sliding the sliding part on the tapered part. A test board mounting device characterized in that it is guided to a possible position. 5. The test board mounting device according to claim 1, wherein the mounting portion includes a reference pin provided on the test head when the mounting portion is mounted on the test head. A mounting window on the lower surface, which is inserted to determine a mounting position to the test head, and a viewing window for visually checking an insertion state of the reference pin into the mounting hole when mounting the mounting portion to the test head. A test board mounting device, comprising: