JP2004271237A - Inspection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspection device capable of fixing surely a printed circuit board, and setting easily the printed circuit board. <P>SOLUTION: This inspection device 10 is equipped with a pedestal 11, a stage 12 provided a little forward on the pedestal 11 and including an interface circuit board 13, a probe device 14 provided over the stage 12, a support plate 15 for fixing thereon the probe device 14, two pressing members 16 fixed to the support plate 15, and a lifting mechanism 17 for moving up and down the probe device. The printed circuit board is inserted from the oblique upside relative to an interface connector 13b. The pressing members 16 are lowered together with the probe device 14 when inspecting the printed circuit board, and the printed circuit board is pressed up to the horizontal state by the pressing members 16, and thereby its insertion state is locked. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection apparatus, and more particularly, when a probe device is connected to a printed circuit board to be inspected to inspect the printed circuit board, the printed circuit board can be securely fixed, and the printed circuit board set Also relates to an easy inspection device.
[0002]
[Prior art]
In the process of inspecting a printed circuit board on which electronic components are mounted and the process of writing data to the printed circuit board, apply a probe to a probe connector mounted on the printed circuit board and measure or write data from there. Has been done. The problem at this time is the alignment between the probe and the probe connector. In other words, there is a need for a mechanism to securely connect the probe even if the connector is not at the original position due to misalignment when the printed board is mounted on the stage or variation in the mounting of the probe connector on the printed board. Is done.
[0003]
Conventionally, as a method for surely aligning a probe and a probe connector, there is known a method of aligning a probe and a non-measurement object by moving the probe while imaging the position of the connector with an optical microscope or a video camera. (See Patent Documents 1 and 2). According to this method, positioning can be performed accurately, reliably, and automatically.
[0004]
However, this method has a problem that the probe control system is complicated and large, and the cost of the apparatus itself is high. In particular, it is suitable for a system in which a probe is positively moved, but is not suitable as a method for correcting a slight displacement between a probe and a probe connector. Therefore, there is an inspection apparatus that can perform the alignment with a simple configuration.
[0005]
FIG. 16 is a schematic perspective view showing the configuration of such a conventional inspection apparatus.
[0006]
As shown in FIG. 16, this inspection device includes a pedestal 61, a stage 62 provided on the pedestal near the front, an interface circuit board 63 provided on the stage 62, It includes a probe device 64 provided above, a support plate 65 to which the probe device 64 is fixed, and an elevating mechanism 67 that moves the probe device 64 up and down.
[0007]
The interface circuit board 63 on the stage 62 has a first interface connector 63b to which a printed circuit board 66 to be inspected is connected, an interface circuit 63c mounted on a board protruding from the stage, and supply of a measurement signal. And a second interface connector 63d provided at one end of the interface circuit board 63 for connection to a computer for processing the measurement results.
[0008]
The probe device 64 includes a probe main body 64a connected to a probe connector 66a on a printed circuit board 66 to be inspected, and a probe holder 64b that slidably holds the probe main body 64a within a certain range centered on the steady position. It has. A contact pin is exposed from the tip of the probe body 64a, and one end of a coaxial cable 68 is connected to the rear end of the probe body 64a. The other end of the coaxial cable 68 is connected to a computer via an interface circuit, and supplies a measurement signal and processes a measurement result.
[0009]
FIG. 17 is a schematic perspective view showing the configuration of the printed board 66 and the first interface connector 63b.
[0010]
As shown in FIG. 17, the printed circuit board 66 connected to the first interface connector 63b has a plurality of terminals 71 arranged at the front end thereof, a cutout 72 for preventing erroneous connection, and both side ends. A lock notch 73 is provided for preventing the printed board 66 provided in the section from coming out of the slot.
[0011]
On the other hand, the first interface connector 63b includes a connector body 75 made of an insulating material, terminals 76 arranged in slots of the connector body 75 corresponding to the terminals 71 of the printed circuit board 66, and an erroneous connection prevention notch 72. , A leaf spring member 78 provided on both sides of the connector body 75, and a rear surface of the leaf spring member 78 corresponding to the locking notch 73. The locking projection 79 is provided.
[0012]
The printed board 66 is inserted into the slot of the first interface connector 63b from an obliquely upper position to be in a temporary connection state. Thereafter, when the printed board 66 in the oblique state is pushed down, the printed board 66 is brought into a horizontal state. Become. At this time, since the locking projection 79 and the locking notch 73 are fitted, the inserted state of the printed board 66 is locked, and the electrical connection between the printed board 66 and the first interface connector 63b is also ensured. . In order to remove the printed board 66 from the first interface connector 63b, the two leaf spring members 78 are bent outward to release the fitting, and then the printed board 66 is lifted upward to re-establish the temporary connection state. Become. Therefore, in this state, the printed board 66 can be easily pulled out from the first interface connector 63b.
[0013]
[Patent Document 1] JP-A-2002-296148
[Patent Document 2] JP-A-08-330371
[0014]
[Problems to be solved by the invention]
In the above-described conventional apparatus, the operation of locking and releasing the printed circuit board to be inspected on the interface circuit board is very troublesome. On the other hand, if the printed circuit board is simply inserted into the connector without a lock mechanism, it cannot be said that it is in a reliable connection state, and when connected to the probe device, the printed circuit board is displaced and cannot be connected to each other There is a problem that the printed circuit board may be displaced from the connector or the printed circuit board may come off from the connector.
[0015]
Therefore, an object of the present invention is to provide an inspection apparatus which can securely fix a printed board and easily insert and remove the printed board when inspecting the printed board by connecting a probe device to the printed board. It is in.
[0016]
[Means for Solving the Problems]
The object of the present invention is to provide a stage on which an inspection object is mounted, a connection device connected to the inspection object, an elevating mechanism for lifting and lowering the connection device, and the inspection object provided with the connection device. This is attained by an inspection device having a pressing member for pressing.
[0017]
ADVANTAGE OF THE INVENTION According to this invention, when lowering a connecting device and connecting a connecting device to a test object, a test object can be fixed reliably.
[0018]
In a preferred embodiment of the present invention, the pressing member is a member that can elastically expand and contract.
[0019]
According to the preferred embodiment of the present invention, the inspection object can be fixed more reliably.
[0020]
In a further preferred embodiment of the present invention, the inspection object is a printed circuit board, and the connection device is a probe device connectable to the printed circuit board.
[0021]
According to a further preferred embodiment of the present invention, when a printed circuit board is inspected by connecting a probe device to the printed circuit board, the printed circuit board can be securely fixed.
[0022]
In a further preferred embodiment of the present invention, the stage includes an interface circuit board, and further includes a connector to which the printed board provided on the interface circuit board is connected, wherein the connector includes the printed circuit board. A mechanism for inserting the printed circuit board obliquely from above with respect to the board surface of the interface circuit board, wherein the pressing member is configured such that, when descending together with the probe device, the printed circuit board obliquely inserted into the connector is substantially horizontal; Press
[0023]
According to a further preferred embodiment of the present invention, when a probe device is connected to a printed circuit board to inspect the printed circuit board, the printed circuit board can be securely fixed and the setting of the printed circuit board is facilitated.
[0024]
In a further preferred embodiment of the present invention, the interface circuit board further has a positioning member.
[0025]
According to a further preferred embodiment of the present invention, the printed board and the connector on the interface circuit board can be reliably connected.
[0026]
In a further preferred embodiment of the present invention, the pressing member is configured such that when a pressing force equal to or more than a load applied when the printed circuit board obliquely inserted into the connector is pressed until the printed board is substantially horizontal. Compress.
[0027]
According to a further preferred embodiment of the present invention, the probe device is not connected to the printed circuit board while the printed circuit board is in a horizontal state. In addition, erroneous connection can be prevented.
[0028]
In a further preferred embodiment of the present invention, the probe device comprises: a probe main body having a contact pin; holding means for slidably holding the probe main body within a certain range centered on a steady position thereof; A return means is provided for returning the probe body to a steady position.
[0029]
According to a further preferred embodiment of the present invention, even when the center axes of the probe main body and the probe connector are misaligned, the probe device absorbs the misalignment with the probe connector within a certain range around the steady position. Thus, the probe body which is slid and deviated from the central axis can be returned to the original position. In particular, at this time, it is possible to prevent the position of the printed circuit board from being shifted due to an external force applied to the printed circuit board, thereby preventing the printed circuit board from being connected to each other, and the printed circuit board from being disconnected from the connector.
[0030]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0031]
FIG. 1 is a schematic perspective view showing a configuration of an inspection apparatus according to a preferred embodiment of the present invention.
[0032]
As shown in FIG. 1, the inspection apparatus 10 includes a pedestal 11, a stage 12 provided near the front of the pedestal 11 and including an interface circuit board 13, a probe device 14 provided above the stage 12, A support plate 15 to which the probe device 14 is fixed, two pressing members 16 fixed to the support plate 15, and a lifting mechanism 17 for lifting and lowering the probe device are provided.
[0033]
The stage 12 includes a mechanism (not shown) for detachably fixing the interface circuit board 13 such as a screwing mechanism or a clip mechanism. Therefore, various interface circuit boards can be provided on the stage according to the inspection object.
[0034]
The interface circuit board 13 has an opening area 13 a formed in a board portion mounted on the stage, a first interface connector 13 b to which a printed circuit board to be inspected is connected, and a board portion protruding from the stage 12. Interface circuit 13c, and a second interface connector 13d provided at one end of the interface circuit board 13 for connection to a computer that supplies measurement signals and processes measurement results.
[0035]
The probe device 14 includes a probe main body 14a connected to a probe connector (not shown) on a printed circuit board, and a probe holder 14b that slidably holds the probe main body 14a within a certain range around its steady position. ing. The probe body 14a is held in a state where both ends protrude from the upper and lower surfaces of the probe holder 14b. A contact pin is exposed from the tip of the probe body 14a, and one end of a coaxial cable 18 is connected to the rear end of the probe body 14a. Although not shown, the other end of the coaxial cable 18 is connected to a computer via an interface circuit to supply a measurement signal and process a measurement result.
[0036]
The support plate 15 is a member that raises and lowers the pressing member 16 together with the probe device 14. The support plate 15 may also function as a lid of the probe holder 14b that holds the probe main body 14a.
[0037]
As will be described in detail later, the pressing member 16 presses the printed circuit board inserted obliquely from above into the first interface connector 13b so that the printed circuit board is in a horizontal state. When connecting the main body 14a to the probe connector, it plays a role of preventing the printed circuit board from moving.
[0038]
The elevating mechanism 17 is a manual type that raises and lowers the connecting pipe 17b by vertically moving a drive lever 17a. A substantially L-shaped support base 19 that supports the elevating mechanism 17 is erected near the rear of the pedestal 11, and the elevating mechanism 17 is supported so that the probe device 14 is arranged above the printed circuit board. 19, it is installed at a position sufficiently higher than the stage. Since the end of the connection pipe 17b is connected to the support plate 15, the support plate 15, the probe device 14, and the pressing member 16 also move up and down in accordance with the elevation of the connection pipe 17b. Note that a drive source such as a motor, an air cylinder, or a hydraulic cylinder may be used as the elevating mechanism 17.
[0039]
FIG. 2 is a schematic perspective view showing a configuration of the interface circuit board 13 and a printed circuit board connected thereto.
[0040]
As shown in FIG. 2, a probe connector 22 is mounted on a printed circuit board 21 to be inspected. Since the electronic components mounted on the printed circuit board 21 are located in the opening area 13a of the interface circuit board, it is unlikely that the electronic components arranged on the back surface of the electronic circuit board come into contact with the board surface of the interface circuit board 13 and be damaged. Absent. Further, the tip of the printed circuit board 21 on the side opposite to the side connected to the first interface connector 13b can be brought into contact with the upper surface 23 of the board portion forming the periphery of the opening area 13a of the interface circuit board. ing. Therefore, this board part functions as a pillow member 23 for the printed board, and even when the printed board 21 is pressed by the pressing member, extreme bending is restricted by the pillow member 23. The electronic component may not be mounted in the area on the printed board where the pressing member 16 contacts, or a non-mountable area of the electronic component specified by a predetermined standard may be used as the contact area of the pressing member 16. .
[0041]
The probe main body 14a is arranged vertically above the probe connector 22. When the probe device 14 is lowered, the probe main body 14a is connected to the probe connector 22. That is, when the elevating mechanism 17 lowers the probe device 14, the probe main body 14a is connected to the probe connector 22 located vertically below the probe body 14a. By supplying a measurement signal from the interface circuit board 13 or the coaxial cable 18 and processing the result by a computer, it is possible to determine whether the printed circuit board operates normally.
[0042]
FIG. 3 is a partially cutaway view showing the configuration of the probe device 14.
[0043]
As shown in FIG. 3, the probe device includes a cylindrical probe main body 14a, a probe holder 14b for slidably holding the probe main body 14a, and a circular flange member 31 fixed to a peripheral edge of the probe main body 14a. And an elastic member 32 housed in the probe holder 14b together with the flange member 31.
[0044]
A contact pin 33 is provided inside the distal end of the probe main body 14a, and a taper portion 34 for guiding the probe main body in a direction for correcting a displacement between the contact pin 33 and the probe connector is provided. At the center of the probe holder 14b, a through hole 14c for projecting both ends of the probe main body 14a is provided. The diameter of the through hole 14c is set to be larger than the diameter of the probe body 14a, and a certain amount of play (gap) is formed between the through hole 14c and the probe body 14a. The probe body 14a is slidably held together with the flange member 31 within a certain range around the center axis of the probe holder 14b. Therefore, even when the center axes of the probe main body 14a and the probe connector are shifted, both can be connected.
[0045]
The elastic member 32 has sufficient flexibility to slide the flange member 31 and the probe main body 14a fixed thereto, and has enough flexibility to return the slid flange member 31 and the probe main body 14a to the normal position. A material having a high repulsive force is used, and a foam material such as a microcell polymer sheet is preferably used. The elastic member 32 is provided around the flange member 31. When an external force is applied to the probe main body 14a, the flange member 31 slides together with the probe main body 14a, and a part of the elastic member 32 in the sliding direction is compressed. You. Thereafter, when the probe main body 14a is released from the external force, the probe main body 14a returns to the steady position before the slide due to the repulsive force of the compressed elastic member 32. Therefore, the probe main body 14a shifted from the center axis by sliding can be returned to the original position.
[0046]
FIG. 4 is a schematic sectional view showing the configuration of the pressing member 16.
[0047]
As shown in FIG. 4, the pressing member 16 includes a housing 41 fixed to the support plate 15, a pin 42 inserted in the housing 41, and a cushion provided at a tip end of the pin penetrating the housing. A member 43 and a coil spring 44 provided between the cushion member 43 and the housing 41 are provided.
[0048]
The housing 41 is a tubular body having a flange portion 41 a, and the tubular portion is held while penetrating the support plate 15, and the flange portion 41 a of the housing 41 and the support plate 15 are fixed by screws 45. Since the cushion member 43 is a portion in contact with the printed circuit board 21, a resin material having high wear resistance and high self-lubricating property is used so as not to damage the printed circuit board 21, and polyacetal resin is preferably used. Alternatively, a metal or the like that has been subjected to fluorine processing may be used. Although the coil spring 44 will be described in detail later, the coil spring 44 does not contract under a load applied when the printed circuit board set obliquely with respect to the first connector is placed in a horizontal state, but contracts when a larger load is applied. It has such an elastic force.
[0049]
Although the pin 42 and the cushion member 43 are constantly urged downward by the coil spring 44, since the pin 42 has the pin head 42a, the downward movement thereof is regulated by the pin head 42a. When a pressing force is applied to the cushion member 43 upward, the coil spring 44 contracts, the cushion member 43 moves upward, and the pin 42 is lifted upward. When released from the pressing force, it can return to the extended state.
[0050]
FIG. 5 is a schematic perspective view showing the configuration of the printed circuit board 21 and the first interface connector 13b.
[0051]
As shown in FIG. 5, the printed circuit board 21 connected to the first interface connector 13b has a plurality of terminals 51 arranged at the front end thereof, a cutout 52 for preventing erroneous connection, and both side ends. A lock notch 53 is provided for preventing the printed circuit board 21 provided in the section from coming off the slot.
[0052]
On the other hand, the first interface connector 13b includes a connector main body 55 made of an insulating material, terminals 56 arranged in slots of the connector main body 55 corresponding to the terminals 51 of the printed circuit board 21, and erroneous connection preventing notches 52. Erroneous connection prevention projections 57 provided corresponding to. In the present embodiment, in order to facilitate the work of inserting and removing the printed circuit board 21, the leaf spring members 78 provided on both sides of the connector main body 55 and the locking projections 79 provided on the back surface thereof are provided. Not been.
[0053]
6 and 7 are views showing a connection state between the printed circuit board 21 shown in FIG. 5 and the first interface connector 13b. FIG. 6 shows a temporary connection state, and FIG. 7 shows a main connection state.
[0054]
As shown in FIG. 6, the slot of the first interface connector 13b is opened not only in the horizontal direction with respect to the mounting surface thereof but also diagonally upward. Therefore, the printed circuit board 21 can be inserted obliquely from above into the slot of the first interface connector 13b. However, as shown in FIG. 5, the erroneous connection preventing projection 57 is provided in the slot of the interface connector 13b, so that the erroneous connection preventing projection 57 and the erroneous connection preventing notch 52 are fitted. The printed circuit board 21 cannot be inserted unless the orientation is correct. In this temporary connection state, the printed circuit board 21 can be easily pulled out, and the connection state is also unstable.
[0055]
As shown in FIG. 7, when the printed board 21 in an oblique state is pressed down by the pressing member 16, the printed board 21 is in a horizontal state. At this time, the printed circuit board 21 receives an elastic force from the first interface connector 13b in a direction to return to an oblique state. In order to pull out the printed circuit board 21 from the first interface connector 13b, if the pressing member 16 is lifted upward, the rear end of the printed circuit board 21 is automatically lifted upward, and the temporary connection state shown in FIG. 5 is again established. . Therefore, in this state, the printed circuit board 21 can be easily pulled out from the first interface connector 13b.
[0056]
8 to 11 are schematic diagrams for explaining the connection operation between the probe device 14 and the printed circuit board 21. FIG.
[0057]
As shown in FIG. 8, first, the printed circuit board 21 to be inspected is inserted obliquely from above into the first interface connector 13b to be in a temporary connection state. On the other hand, the probe device 14 is in the raised position.
[0058]
As shown in FIG. 9, when the probe device 14 is lowered, the pressing member 16 is also lowered. Then, before the connection between the probe main body 14 a and the probe connector 22, the distal end of the pressing member 16 contacts the board surface of the printed board 21. In this state, the printed circuit board 21 still maintains an oblique state.
[0059]
As shown in FIG. 10, when the probe device 14 is further lowered, the printed board 21 is pressed down by the pressing member 16 to a horizontal state. The elastic force of the coil spring 44 of the pressing member 16 is set so as not to be compressed by a load applied to the pressing member 16 at this time. Therefore, the pressing member 16 does not compress and is therefore higher than the pressing member 16. The probe body 14a at the position is not connected to the probe connector 22. The end portion of the printed circuit board 21 that has been pushed down to the horizontal state is in contact with the pillow member 23 or is slightly lifted, and is not pushed down any more.
[0060]
As shown in FIG. 11, when the probe device 14 is further pressed down, the pressing force applied to the distal end portion of the pressing member 16 further increases, so that the pressing member 16 starts to be compressed. As a result, the probe main body 14a is connected to the probe connector 22. When the probe device 14 is raised from this state, the compressive force of the pressing member 16 applied to the printed circuit board 21 gradually decreases, and the probe device 14 and the pressing member 16 interlocked with the probe device 14 pass through the states of FIGS. And return to the raised position shown in FIG. At this time, the printed circuit board 21 returns to the state shown in FIG. 8 with the rise of the pressing member 16, so that the printed circuit board 21 can be easily extracted from the slot of the first connector.
[0061]
12 to 14 are schematic cross-sectional views schematically showing the connection operation between the probe device 14 and the printed circuit board, and show a case where the center axes of the probe main body 14a and the probe connector 22 are shifted. The illustration of the internal structure of the probe body 14a is omitted.
[0062]
As shown in FIG. 12, when the probe device 14 is in the raised position, no external force is applied to the probe main body 14a, so that the probe main body 14a is located at the center of the probe holder 14b, which is a stationary position, and It is kept coaxial with the holder 14b. On the other hand, the center axis of the probe connector 22 is shifted to the left with respect to the center axis of the probe body 14a.
[0063]
As shown in FIG. 13, when the probe device 14 is lowered, the distal end of the probe main body 14a comes into contact with the probe connector 22. Here, since the center axes of the probe main body 14a and the probe connector 22 are shifted, only a part of the outer periphery of the probe connector 22 comes into contact with the tapered portion 34 provided at the distal end of the probe main body 14a.
[0064]
As shown in FIG. 14, when the probe device 14 is further lowered, the contact portion gradually moves relatively to the rear along the tapered portion 34, and the center axis of the probe main body 14a is moved to the probe connector 22. The contact pin 33 contacts the probe connector 22 until the final position coincides with the central axis of the probe connector 22. Further, the flange member 31 slides together with the probe body 14a. When the center axis of the flange member 31 is shifted with respect to the probe holder 14b in this manner, a part of the elastic member 32 in the sliding direction (left side in the drawing) is compressed, and the elastic member 32 and the flange member 31 in the opposite directions are compressed. A gap 35 is formed between the two.
[0065]
When the probe device 14 is raised from the state shown in FIG. 14, the probe apparatus 14 returns to the original raised position shown in FIG. 12 via the state shown in FIG. 13 or directly. That is, when the probe main body 14a slid by the pressure contact force between the probe connector 22 and the tapered portion 34 is released from the pressure contact force, the probe body 14a returns to the original position by the repulsive force of the compressed elastic member 32. As shown, the probe main body 14a and the probe holder 14b again become coaxial, and the elastic member 32 also returns to the steady state. As described above, the probe device 14 can absorb a positional deviation from the probe connector 22 within a fixed range of 360 degrees around the steady position.
[0066]
As described above, according to the present embodiment, when the printed circuit board 21 is inspected by connecting the probe connector 22 provided on the printed circuit board 21 and the probe main body 14a of the probe device 14, the print to be inspected is performed. The board 21 can be securely fixed with a simple configuration, and the work of inserting and removing the printed board 21 from and to the first interface connector 13b becomes easy.
[0067]
FIG. 15 is a schematic side view showing another example of the interface circuit board.
[0068]
As shown in FIG. 15, the interface circuit board 13 'includes an opening area 13a formed in a board portion mounted on a stage, a first interface connector 13b to which a printed circuit board 21 to be inspected is connected. An interface circuit 13c mounted on a portion of the substrate protruding from the stage 12, and a second end provided at one end of the interface circuit substrate 13 for connection to a computer for supplying measurement signals and processing measurement results. An interface connector 13d is provided, which is the same as the interface circuit board 13 shown in FIG.
[0069]
In the present embodiment, a positioning member 13e is further provided on the substrate portion functioning as the pillow member described above. The surface of the positioning member 13e that is in contact with the end of the printed circuit board is obliquely inclined. When the printed circuit board 21 is in a horizontal state, its end comes into contact with the inclined surface of the stopper member 13e, so that a pressing force is applied in the direction of insertion into the first interface connector 13b, and the printed circuit board 21 is positioned. 21 and the first interface connector 13b can be reliably connected. It is preferable that the positioning member 13e includes a flat portion 13f for holding the printed circuit board 21 substantially in parallel. Accordingly, the contact pins 33 abut substantially perpendicularly to the probe connector 22, so that the contact pins 33 and the probe connector 22 can be more reliably prevented from being damaged.
[0070]
The present invention is not limited to the embodiments described above, and various changes can be made within the scope of the invention described in the claims, which are also included in the scope of the present invention. Needless to say,
[0071]
For example, in the above embodiment, the probe body 14a, the flange member 31 provided on the periphery of the probe body, the probe holder 14b for slidably housing the flange member, and the gap between the periphery of the flange member and the inner surface of the probe holder 14b. In the above description, an example in which the probe device including the elastic member 32 housed in the probe holder 14b together with the flange member in a state where the probe body 14a is sandwiched is used, but the present invention is not limited to this. Any configuration may be used as long as it has a means for freely holding and returning the slid probe body 14a to a steady position. Further, the probe body 14a does not necessarily have to be slidably held.
[0072]
Further, in the above embodiment, the position of the probe device in the horizontal direction is fixed, but a mechanism capable of adjusting this position may be provided. For example, if a mechanism capable of changing the connection position between the connection pipe 17b and the support plate 15 is provided, the probe device can be adjusted to the position of the probe connector provided on the printed circuit board to be inspected.
[0073]
Further, in the above-described embodiment, the case where two pressing members 16 are provided is described as an example. However, the present invention is not limited to this, and three or more pressing members 16 may be provided. If the board 21 can be firmly fixed so as not to move, only one pressing member 16 may be used.
[0074]
Further, in the above-described embodiment, the case where the printed circuit board 21 to be inspected is inserted obliquely from above and pressed to the horizontal state by the pressing member 16 to lock the inserted state is described as an example, but the present invention is not limited to this. Instead, the printed circuit board 21 may be set horizontally from the beginning. In such a case, the pressing member 16 does not need to include the coil spring 44, and the pressing member 16 does not have to be elastically extendable.
[0075]
Further, in the above embodiment, the case where the inspection target mounted on the stage is a printed circuit board and the device connected thereto is a probe device has been described as an example, but the present invention is not limited to this. . In other words, when the inspection object is mounted on the stage, and when the connection device is connected to the inspection object by descending, a pressing member is also lowered together with the connection device to press the inspection object. The inspection object and the connection device may be of any type.
[0076]
【The invention's effect】
As described above, according to the present invention, when a probe device is connected to a printed circuit board to inspect the printed circuit board, the printed circuit board can be securely fixed, and the inspection and removal of the printed circuit board can be easily performed. An apparatus can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a configuration of an inspection apparatus according to a preferred embodiment of the present invention.
FIG. 2 is a schematic perspective view showing a configuration of an interface circuit board 13 and a printed circuit board connected thereto.
FIG. 3 is a partially cutaway view showing a configuration of a probe device 14;
FIG. 4 is a schematic sectional view showing a configuration of a pressing member 16;
FIG. 5 is a schematic perspective view showing a configuration of a printed circuit board 21 and a first interface connector 13b.
FIG. 6 is a diagram illustrating a connection state between the printed circuit board 21 and the first interface connector 13b illustrated in FIG. 5, and illustrates a temporary connection state.
FIG. 7 is a diagram illustrating a connection state between the printed circuit board 21 and the first interface connector 13b illustrated in FIG. 5, and illustrates a main connection state;
FIG. 8 is a schematic diagram for explaining the connection operation between the probe device 14 and the printed circuit board 21 together with FIGS. 9 to 11;
FIG. 9 is a schematic diagram for explaining the connection operation between the probe device 14 and the printed circuit board 21 together with FIGS. 8, 10 and 11;
FIG. 10 is a schematic diagram for explaining the connection operation between the probe device 14 and the printed circuit board 21 together with FIGS. 8, 9 and 11;
FIG. 11 is a schematic diagram for explaining the connection operation between the probe device 14 and the printed circuit board 21 together with FIGS. 8 to 10;
FIG. 12 is a schematic cross-sectional view schematically showing a connection operation between the probe device 14 and a printed circuit board together with FIGS. 13 and 14, wherein the center axes of the probe main body 14a and the probe connector 22 are shifted. Is shown.
FIG. 13 is a schematic cross-sectional view schematically showing a connection operation between the probe device 14 and the printed circuit board together with FIGS. 12 and 14, wherein the center axes of the probe main body 14a and the probe connector 22 are shifted. Is shown.
FIG. 14 is a schematic cross-sectional view schematically showing a connection operation between the probe device 14 and the printed circuit board, together with FIGS. 12 and 13, wherein the center axes of the probe main body 14a and the probe connector 22 are shifted. Is shown.
FIG. 15 is a schematic side view showing another example of the interface circuit board.
FIG. 16 is a schematic perspective view showing a configuration of a conventional inspection device.
FIG. 17 is a schematic perspective view showing a conventional configuration of a printed circuit board 66 and a first interface connector 63b.
[Explanation of symbols]
10 Inspection device
11 pedestals
12 stages
13, 13 'interface circuit board
13a Open area
13b first interface connector
13c interface circuit
13d second interface connector
13e Positioning member
13f Flat part of positioning member
14 Probe device
14a Probe body
14b probe holder
14c through hole
15 Support plate
16 Pressing member
17 Lifting mechanism
17a Drive lever
17b Connecting pipe
18 Coaxial cable
19 Support
21 Printed circuit board
22 Probe connector
23 Pillow member (upper surface of substrate portion surrounding opening region 13a)
31 Flange member
32 elastic members
33 Contact Pin
34 Taper
41 Housing
41a Flange part
42 pins
42a pin head
43 Cushion member
44 Coil spring
51 terminals
52 Missing
53 Missing
55 Connector body
56 terminals
57 Misconnection prevention projection
58 leaf spring member
59 Lock projection
60 Inspection device
61 pedestal
62 stages
63 Interface Circuit Board
63b connector
63c interface circuit
63d interface connector
64 probe device
64a probe body
64b probe holder
65 Support plate
66 Printed circuit board
66a probe connector
67 Lifting mechanism
68 Coaxial cable

Claims (7)

A stage on which the inspection object is mounted,
A connection device connected to the inspection object,
An elevating mechanism for elevating the connecting device,
An inspection device, comprising: a pressing member provided with the connection device and pressing the inspection object. The inspection device according to claim 1, wherein the pressing member is a member that can elastically expand and contract. The inspection object is a printed circuit board,
The inspection device according to claim 1, wherein the connection device is a probe device that can be connected to the printed circuit board. The stage includes an interface circuit board,
Further provided is a connector to which the printed circuit board provided on the interface circuit board is connected,
The connector includes a mechanism for inserting the printed board from obliquely above the board surface of the interface circuit board,
The inspection device according to claim 3, wherein the pressing member presses the printed board obliquely inserted into the connector so as to be substantially horizontal when descending together with the probe device. The inspection apparatus according to claim 4, wherein the interface circuit board further has a positioning member. The said pressing member compresses, when the press-contact force more than the load applied when pressing the said printed circuit board inserted obliquely with respect to the said connector until it becomes substantially horizontal is applied. The inspection device according to 4 or 5. The probe device,
A probe body having a contact pin,
Holding means for slidably holding the probe body within a certain range around its steady position,
The inspection apparatus according to claim 3, further comprising a return unit configured to return the slid probe body to a normal position.

Images