JP2012026889A - Circuit board inspection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circuit board inspection apparatus capable of surely regulating a position of a pinboard relative to a holding plate by preventing mounting of a member for regulating the position of the pinboard relative to the holding plate from being forgotten.SOLUTION: A holding plate 2 has holding parts 21 which are capable of moving a pinboard 3 relatively to the holding plate 2 in the state where a main plane of the pinboard 3 is approximately parallel with a main plane of the holding plate 2, and holds the pinboard 3 relatively to the holding plate 2; and recesses 71 for regulating a position of the pinboard 3 relative to the holding plate 2. The pinboard 3 has held parts 33 which are held by the holding part of the holding plate 2; and projections 72 which are fitted with the recesses 71, for regulating the position of the pinboard 3 relative to the holding plate 2. The projections 72 are movable between a fitting position and a retreat position and is energized toward the fitting position by an energizing means.

Description

  The present invention relates to a circuit board inspection apparatus for determining the quality of a circuit board on which an electronic component is mounted, and in particular, a pin board detachable from a holding plate on the main body side of the circuit board inspection apparatus, The present invention relates to a circuit board inspection apparatus characterized by a position regulation mechanism (or position adjustment mechanism) for a holding plate.

  Conventionally, after mounting electronic parts such as IC parts on a printed wiring board by soldering, etc., circuit board inspection called in-circuit tester or board tester to check for damage of electronic parts and poor soldering An apparatus is used (Patent Document 1).

  FIG. 7 is a schematic cross-sectional view of a main part of an example of a conventional circuit board inspection apparatus 1. The circuit board inspection apparatus 1 includes a base 5 that supports a circuit board 9 to be inspected on which an electronic component E is mounted from below, a holding plate 2 that moves forward and backward (up and down) with respect to the main plane P of the circuit board 9 to be inspected. A test probe 31 that contacts a predetermined part of the circuit board 9 to be inspected is provided, and has a pin board (upper pin board) 3 held by the holding plate 2.

  The holding plate 2 is provided in the main body of the circuit board inspection apparatus 1, and the circuit board 9 to be inspected is moved by a moving device (not shown) such as an air cylinder (pressing device) provided in the main body of the circuit board inspection apparatus 1. It is possible to move in the direction toward the main plane P or away from the main plane P. By moving the holding plate 2 by this moving device and lowering the upper pin board 3 toward the circuit board 9 to be inspected, the test probe 31 erected from the surface of the upper pin board 3 is connected to the circuit to be inspected. A predetermined portion (such as a lead e of the electronic component E) is brought into contact with the substrate 9.

  When only the inspection of one surface of the circuit board 9 to be inspected is performed, the circuit board 9 to be inspected is placed at a predetermined position on the base 5. When performing inspection of both sides of the circuit board 9 to be inspected with the electronic components E mounted on both sides, pins provided with test probes 41 that contact a predetermined part of the circuit board 9 to be inspected are also provided on the base 5 side. A board (lower pin board) 4 can be provided. The lower pin board 4 is provided with a mounting table 43 erected from the surface thereof. The test probe 41 is located below the circuit board 9 to be inspected mounted on the mounting table 42. It is provided upright from the surface. By lowering the upper pin board 3, the circuit board 9 to be inspected is sandwiched between the test probe 31 of the upper pin board 3 and the test probe 41 of the lower pin board 4, so that predetermined portions on both surfaces of the circuit board 9 to be inspected. The test probes 31 and 41 of the upper pin board 3 and the lower pin board 4 are brought into contact with the lead e of the electronic component E or the like.

  FIG. 8 is a partial exploded perspective view of a main part of an example of a conventional circuit board inspection apparatus 1. The upper pin board 3 and the lower pin board 4 can be attached to and detached from the main body 10 of the circuit board inspection apparatus 1, and test probes 31 and 41 are provided at desired positions according to the circuit board 9 to be inspected. Can be exchanged for something. The circuit board inspection apparatus 1 is provided with an opening 11 that allows the operator to replace the upper pin board 3 and the lower pin board 4 by opening the inside of the main body 10.

  A method for attaching and detaching the upper pin board 3 will be described. The holding plate 2 has two L-shaped guide rails 21 as a holding portion for holding the upper pin board 3 so as to be slidable. On the other hand, the upper pin board 3 is formed with two holding receiving portions 33 and 33 having a shape complementary to the shape of the guide rails 21 and 21. The operator moves the upper pin board 3 from the front of the opening 11 along the guide rails 21 and 21 of the holding plate 2 to the back side or the near side, and attaches and detaches the upper pin board 3 to and from the holding plate 2. be able to. Further, the holding plate 2 and the upper pin board 3 are respectively provided with regulation holes 22 and 34 for regulating the position of the upper pin board 3 with respect to the holding plate 2. In the illustrated example, two restriction holes 22 and 34 are provided in the holding plate 2 and the upper pin board 3 respectively.

  When the upper pin board 3 is mounted on the holding plate 2, the restriction hole 33 of the upper pin board 3 is set to the operator side, and the upper pin board 3 is connected to the upper pin board 3 through the opening 11 of the main body 10 of the circuit board inspection apparatus 1. The holding receiving portions 33 and 33 are inserted into the guide rails 21 and 21 of the holding plate 2 and are slid to the back side in a direction perpendicular to the paper surface of FIG. After the upper pin board 3 is slid to a position where the restriction hole 22 of the holding plate 2 and the restriction hole 33 of the upper pin board 3 are aligned, the holding plate is penetrated through the restriction holes 22 and 33 at the corresponding positions. The restriction pin 6 is inserted and fixed from the upper part of the second restriction hole 22 to the restriction hole 34 of the upper pin board 3.

  Here, the upper pin board 3 is supported with a predetermined clearance with respect to the holding plate 2. The upper pin board 3 is provided with guide pins 32 for positioning with respect to the circuit board 9 to be inspected. The base 5 and / or the lower pin board 4 are formed with escape holes 42 and 51 for allowing the guide pins 32 to escape. When the holding plate 2 on which the upper pin board 3 is mounted is lowered toward the circuit board 9 to be inspected, guide pins 32 provided on the upper pin board 3 are formed at predetermined positions on the circuit board 9 to be inspected. The guide hole 91 is fitted. As a result, even when there is a positional shift of the upper pin board 3 with respect to the circuit board 9 to be inspected, this positional shift is absorbed by the upper pin board 3 moving within the clearance.

  In this way, the restriction holes 22 and 34 and the restriction pin 6 allow fine adjustment of the relative position of the upper pin board 3 with respect to the circuit board 9 to be inspected, and the upper pin board 3 has an allowable amount relative to the holding plate 2. It is possible to prevent the upper pin board 3 from moving from the above or from unexpectedly coming off the holding plate 2 and prevent the upper pin board 3 from being damaged. Further, the regulation holes 22 and 34 and the regulation pin 6 also serve to instruct the mounting direction of the upper pin board 3 with respect to the holding plate 2.

Japanese Utility Model Publication No. 6-42222

  However, the conventional board restriction mechanism (or position adjustment mechanism) using the restriction holes 22 and 34 and the restriction pin 6 has the following problems.

  That is, although the above conventional mechanism can achieve the intended purpose with a simple configuration, it is necessary to remove the restriction pin 6 when removing the upper pin board 3 from the holding plate 2. When attaching to the holding plate 2, the attachment of the regulation pin 6 may be forgotten. For this reason, there is a possibility that the upper pin board 3 may be damaged due to the upper pin board 3 being unexpectedly detached from the holding plate 2.

  In the above description, it is assumed that the pin board held on the holding plate is an upper pin board that can be moved back and forth and is disposed on the upper side of the circuit board to be inspected. However, even when the pin board held by the holding plate is disposed below the circuit board to be inspected, or when the pin board is disposed at a predetermined position without moving back and forth with respect to the circuit board to be inspected. Even in the case where the position of the pin board with respect to the holding plate is regulated using the regulation hole and the regulation pin that is detachably inserted into the regulation hole, the same problem as described above occurs.

  Accordingly, an object of the present invention is to provide a circuit board inspection apparatus capable of reliably regulating the position of a pin board with respect to the holding plate without forgetting to attach a member for regulating the position of the pin board with respect to the holding plate. That is.

  The above object is achieved by a circuit board inspection apparatus according to the present invention. In summary, according to the first aspect of the present invention, a holding plate arranged so that its main plane is substantially parallel to the main plane of the circuit board to be inspected, and a test probe that contacts a predetermined portion of the circuit board to be inspected. A circuit board inspection apparatus comprising: a pin board detachably mounted on the holding plate; wherein the holding plate has a main plane of the pin board substantially parallel to a main plane of the holding plate The pin board can be moved relative to the holding plate, and the holding portion that holds the pin board with respect to the holding plate, and the position of the pin board with respect to the holding plate are regulated. A concave portion; and the pin board is fitted with the concave portion for restricting a position of the pin board with respect to the holding plate and a holding receiving portion held by the holding portion of the holding plate. Convex And a convex portion that protrudes toward the holding plate when the pin board is mounted on the holding plate, and is retracted to the inside of the pin board. Thus, the circuit board inspection apparatus is capable of moving between the second position and the second position where it is separated from the recess, and is biased toward the first position by the biasing means.

  In the second aspect of the present invention, a holding plate arranged so that its main plane is substantially parallel to the main plane of the circuit board to be inspected, and a test probe that contacts a predetermined part of the circuit board to be inspected are attached. A circuit board inspection apparatus comprising: a pin board that is detachably mounted on the holding plate; and the holding plate has the main plane of the pin board substantially parallel to the main plane of the holding plate. A holding portion that allows the pin board to move relative to the holding plate and holds the pin board with respect to the holding plate, and a convex portion for regulating the position of the pin board with respect to the holding plate The pinboard has a holding receiving portion held by the holding portion of the holding plate, and a concave portion in which the convex portion for restricting the position of the pinboard with respect to the holding plate is fitted. When, And having a first position that protrudes toward the pinboard when the pinboard is mounted on the holding plate and fits into the concave portion, and retracts to the inside of the holding plate. A circuit board inspection apparatus, wherein the circuit board inspection apparatus is movable between a second position and a second position where it is separated from the recess, and is biased toward the first position by a biasing means.

  According to the present invention, it is possible to reliably regulate the position of the pin board with respect to the holding plate without forgetting to attach the member for regulating the position of the pin board with respect to the holding plate.

It is a schematic sectional drawing of the holding board and upper pin board in the state which has the movable pin in a fitting position in the circuit board inspection apparatus which concerns on one Example of this invention. It is a schematic sectional drawing of the holding board and upper pin board in the state which has the movable pin in a retracted position in the circuit board inspection apparatus which concerns on one Example of this invention. FIG. 3 is a schematic perspective view of the holding plate and the upper pin board showing how the upper pin board is mounted on the holding plate in the circuit board inspection apparatus according to one embodiment of the present invention. It is a general | schematic fragmentary exploded sectional view for demonstrating an example of the attachment method to the upper pin board of the movable pin in the circuit board inspection apparatus which concerns on one Example of this invention. It is a schematic sectional drawing of the holding board and upper pin board in the state which has the movable pin in a fitting position in the circuit board inspection apparatus which concerns on the other Example of this invention. It is a schematic sectional drawing of the holding board and upper pin board in the state which has a movable pin in a retracted position in the circuit board inspection apparatus which concerns on the other Example of this invention. It is sectional drawing of the principal part of an example of the conventional circuit board inspection apparatus. It is a partial exploded perspective view of the principal part of an example of the conventional circuit board inspection apparatus.

  Hereinafter, the circuit board inspection apparatus according to the present invention will be described in more detail with reference to the drawings.

Example 1
The basic configuration and operation of the circuit board inspection apparatus according to this embodiment are the same as those of the conventional apparatus described with reference to FIGS. Elements having functions and configurations that are the same as or equivalent to those of a conventional circuit board inspection apparatus are denoted by the same reference numerals, and detailed description thereof is omitted. Hereinafter, characteristic portions in this embodiment will be mainly described.

  As in the circuit board inspection apparatus 1 shown in FIGS. 7 and 8, the circuit board inspection apparatus 1 of the present embodiment includes the holding plate 2, the upper pin board 3, the lower pin board 4, and the base 5. Have. The holding plate 2 is arranged so that its main plane is substantially parallel to the main plane P of the circuit board 9 to be inspected, and the main plate of the circuit board 9 to be inspected by a moving means such as an air cylinder (pressing device). It moves forward and backward with respect to the plane P (in this embodiment, it moves up and down along a substantially vertical direction). The upper pin board 3 is provided with a test probe 31 that comes into contact with a predetermined part of the circuit board 9 to be inspected, and is detachably attached to the holding plate 2. Although the lower pin board 4 is also detachable from the main body 10 of the circuit board inspection apparatus 1, it is not related to the characteristic part of the present embodiment, so that further explanation is omitted. The circuit board inspection apparatus 1 is provided with an opening 11 that opens the inside of the main body 10 and allows an operator to replace the upper pin board 3 and the lower pin board 4.

  1 and 2 are schematic cross sections of the holding plate 2 and the upper pin board 3 provided in the circuit board inspection apparatus 1 of the present embodiment, and show a state in which the upper pin board 1 is mounted on the holding plate 2. 1 and 2, the test probe 31 and the guide pin 32 (see FIG. 7) provided on the upper pin board 3 are not shown. FIG. 3 is a schematic perspective view of the holding plate 2 and the upper pin board 3 showing how the upper pin board 3 is mounted on the holding plate 2.

  In the present embodiment, the holding plate 2 has two L-shaped guide rails 21, 21 as holding parts for holding the upper pin board 3. The guide rails 21, 21 as the holding portions enable the upper pin board 3 to move relative to the holding plate 2 in a state where the main plane of the upper pin board 3 is substantially parallel to the main plane of the holding plate 2. At the same time, the upper pin board 3 is held against the holding plate 2. The guide rails 21 and 21 are provided on the surface (lower surface) of the two opposite sides of the holding plate 2 having a rectangular shape in plan view on the side of the circuit board 9 to be inspected. On the other hand, the upper pin board 3 is formed with two holding receiving portions 33 and 33 having a shape complementary to the shape of the guide rails 21 and 21. The holding receiving portions 33 and 33 are formed on two opposing sides of the upper pin board 3 that is rectangular in plan view.

  The guide rails 21 and 21 slidably receive the holding receiving portions 33 and 33 of the upper pin board 3 and hold the upper pin board 3 with respect to the holding plate 2 through the holding receiving portions 33 and 33. The holding plate 2 is attached to the inside of the main body 10 so that the sliding direction of the upper pin board 3 by the guide rails 21 and 21 intersects the plane including the opening 11 of the main body 10 of the circuit board inspection apparatus 1. . Thereby, the operator moves the upper pin board 3 from the front of the opening 11 along the guide rails 21 and 21 of the holding plate 2 to the back side or the near side, and moves the upper pin board 3 with respect to the holding plate 2. Can be attached and detached.

  In the present embodiment, the holding plate 2 is provided with a regulation hole 71 as a recess for regulating the position of the upper pin board 3 relative to the holding plate 2 so as to penetrate the holding plate 2. The upper pin board 3 is provided with a movable pin 72 as a convex part that fits into the restriction hole 71 for restricting the position of the upper pin board 3 relative to the holding plate 2.

  Two restriction holes 71 and two movable pins 72 are provided in each of the holding plate 2 and the upper pin board 3. In this embodiment, the restricting holes 71 and 71 are provided in the vicinity of two opposing sides of the holding plate 2 provided with the guide rails 21 and 21, and the movable pins 72 and 72 are provided as holding holders. The upper pin board 3 on which the 33 and 33 are formed is attached in the vicinity of two opposing sides. Further, as will be described in detail later, the restriction holes 71 and 71 and the movable pins 72 and 72 are provided on the upper pin board when the upper pin board 3 is mounted on the holding plate 2 so that the operator can easily access it. 3 in the vicinity of the end of the holding plate 2 and the pin board 3 on the rear end side in the moving direction with respect to the holding plate 2, and accessed from the outside of the opening 11 with the upper pin board 3 mounted on the holding plate 2. They are arranged at possible positions (see FIG. 3).

  The movable pin 72 protrudes toward the holding plate 2 when the upper pin board 3 is attached to the holding plate 2, and is fitted to the restriction hole 71. It is possible to move between a second position (retracted position) that retracts to the inside and moves away from the restriction hole 71. The movable pin 72 is urged toward the fitting position by a spring 73 as urging means. FIG. 1 shows a state where the movable pin 72 is in the fitting position, and FIG. 2 shows a state where the movable pin 72 is in the retracted position.

  More specifically, in this embodiment, the movable pin 72 has a substantially cylindrical shaft portion 72a and a disk-shaped flange portion 72b formed integrally with one end portion of the shaft portion 72a. Further, the upper pin board 3 is formed with a pin accommodating portion 74 that is a substantially cylindrical space for accommodating the movable pin 72. The pin accommodating portion 74 has a sufficient height (depth) so that the shaft portion 72a of the movable pin 72 in the retracted position does not protrude from the surface of the upper pin board 3 on the holding plate 2 side. A spring 73 is disposed in a compressed state between the bottom surface 74 a of the pin housing portion 74 and the bottom surface 72 b 1 of the flange portion 72 b of the movable pin 72. A pin projecting hole 74b having an inner diameter substantially the same as the outer diameter of the shaft portion 72a of the movable pin 72 is formed on the surface of the pin housing portion 74 opposite to the bottom surface 74a. The stepped locking portion 74 c around the pin protruding hole 74 b engages with the flange portion 72 b of the movable pin 72 biased by the spring 73, so that the movable pin 72 jumps out of the pin housing portion 74. It is prevented. The top portion of the shaft portion 72a may be flat, but a tapered shape or a hemispherical shape whose height gradually decreases toward the outside in the radial direction so as to enable a smoother fitting into the restriction hole 71. It may be (dome shape). In this embodiment, the inner diameter of the restriction hole 71 is set so that a finger can be put inside the restriction hole 71 and the movable pin 72 disposed therein can be pushed in with the finger.

  In this embodiment, the pinboard position restriction mechanism (or position adjustment mechanism) 7 is configured by the restriction hole 71, the movable pin 72, the spring 73, the pin housing portion 74, and the like.

  4A, 4 </ b> B, and 4 </ b> C show an example of a method for attaching the movable pin 72 to the upper pin board 3. That is, when the engaging portion 74c around the pin protruding hole 74b of the pin accommodating portion 74 is a separate member from the main body of the upper pin board 3, the movable pin 72 and the spring 73 are accommodated in the pin accommodating portion 74. One end portion of the pin accommodating portion 74 is opened so that the flange portion 72b of the movable pin 72 can pass therethrough. As shown in FIG. 4A, the locking portion 74c, which is a separate member, is screwed into the screw portions 74d and 74e formed on the main body side and the locking portion 74c side of the upper pin board 3, respectively. By any suitable fixing means such as bonding (or welding) with an adhesive g as shown in FIG. 4 (b), or fixing with a fastener such as a separate screw 74f as shown in FIG. 4 (c), It can be fixed to the main body of the upper pin board 3.

  When the upper pin board 3 is mounted on the holding plate 2, the side on which the movable pin 72 of the upper pin board 3 is provided is the operator side, and the opening 11 of the main body 10 of the circuit board inspection apparatus 1 is used. The holding receiving portions 33, 33 of the upper pin board 3 are inserted into the guide rails 21, 21 of the holding plate 2, and are slid to the back side in a direction perpendicular to the paper surface of FIG. At least when the movable pin 72 passes through a position where it abuts against the end of the holding plate 2 on the operator side, the operator presses the movable pin 72 with a finger and moves it to the retreat position. When the movable pin 72 passes through the end of the holding plate 2 on the operator side and moves below the holding plate 2, the operator stops pressing the movable pin 72 and further moves the upper pin board 3 to the far side. Slide. When the upper pin board 3 is slid to a position where the regulation hole 71 of the holding plate 2 and the movable pin 72 of the upper pin board 3 are aligned, the movable pin 72 is urged by the spring 73 and moves to the fitting position. Therefore, the movable pin 72 is inserted into the restriction hole 71. In this state, the position of the upper pin board 3 with respect to the holding plate 2 is restricted.

  When removing the upper pin board 3 from the holding plate 2, the operator presses the movable pin 72 that is in the fitting position and fitted with the restriction hole 71 from the upper side of the restriction hole 71. Move to the retracted position. Then, the upper pin board 3 is slid forward along a direction perpendicular to the paper surface of FIG. When the movable pin 72 deviates from the position of the restriction hole 71 and moves below the holding plate 2, the operator stops pressing the movable pin 72, slides the upper pin board further forward, and moves the upper pin board 3. Is removed from the holding plate 2.

  Similar to the circuit board inspection apparatus 1 shown in FIG. 7, also in this embodiment, the upper pin board 3 is supported with a predetermined clearance with respect to the holding plate 2. The upper pin board 3 is provided with guide pins 32 for positioning with respect to the circuit board 9 to be inspected. The base 5 and / or the lower pin board 4 are formed with escape holes 42 and 51 for allowing the guide pins 32 to escape. More specifically, the restriction hole 71 of the upper pin board 3 is formed so as to be fitted to the shaft portion 72a of the movable pin 72 with a predetermined clearance. That is, the outer diameter of the shaft portion 72 a of the movable pin 72 is smaller than the inner diameter of the restriction hole 71. The holding receiving portions 33 and 33 of the upper pin board 3 are formed so as to engage with the guide rails 21 and 21 of the holding plate 2 with a predetermined clearance. That is, the distance between the outer surfaces of the holding receiving portions 33 of the upper pin board 3 in the direction substantially orthogonal to the sliding direction of the upper pin board 3 is the inner surface of the guide rails 21 and 21 of the holding plate 2 at the corresponding position in the same direction. Less than the distance between. Thereby, between the upper pin board 3 and the holding plate 2, freedom (clearance, intentional rattling) is provided in all directions along the main plane of the holding plate 2 and the upper pin board 3 (horizontal direction in this embodiment). You can have it. Therefore, the relative position of the upper pin board 3 with respect to the circuit board 9 to be inspected can be finely adjusted by moving the upper pin board 3 in all directions along the main plane of the holding plate 2 and the upper pin board 3.

  When the holding plate 2 on which the upper pin board 3 is mounted is lowered toward the circuit board 9 to be inspected, guide pins 32 provided on the upper pin board 3 are formed at predetermined positions on the circuit board 9 to be inspected. The guide hole 91 is fitted. Thereby, even when there is a position shift of the upper pin board 3 with respect to the circuit board 9 to be inspected, this position shift is absorbed by the clearance between the holding plate 2 and the upper pin board 3.

  As described above, according to the present embodiment, the relative position of the upper pin board 3 with respect to the circuit board 9 to be inspected can be finely adjusted by the restriction hole 71 and the movable pin 72, and the upper pin board 3 is fixed to the holding plate 2. Therefore, it is possible to prevent the upper pin board 3 from being moved from the holding plate 2 by accidentally moving the permissible amount or unexpectedly coming off the holding plate 2 and preventing the upper pin board 3 from being damaged. Further, the restriction hole 71 and the movable pin 72 also serve to instruct the mounting direction of the upper pin board 3 with respect to the holding plate 2. According to this embodiment, the movable pin 72 can be moved between the fitting position and the retracted position with respect to the restriction hole 71 while being attached to the upper pin board 3. Never forget to attach 72. Further, according to the present embodiment, the movable pin 72 can be moved between the fitting position and the retracted position by an operator pressing with a finger. The fitting and releasing can be easily performed.

  As described above, according to the present embodiment, the movable pin 72 that is a member for regulating the position of the upper pin board 3 relative to the holding plate 2 is always attached to the upper pin board 3. The position of the upper pin board 3 relative to the holding plate 2 can be reliably regulated without forgetting to attach a member for regulating the position of the upper pin board 3 relative to the holding plate 2.

Example 2
Next, another embodiment of the present invention will be described. The basic configuration and operation of the circuit board inspection apparatus 1 of the present embodiment are the same as those of the first embodiment. Accordingly, elements having the same functions or configurations as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the first embodiment, the restriction holes 71 constituting the pinboard position restriction mechanism 7 are provided in the holding plate 2, and the movable pins 72 constituting the pinboard position restriction mechanism 7 are attached to the upper pinboard 3. However, the present invention is not limited to such an arrangement, and the restriction hole 71 may be provided in the upper pin board 3 and the movable pin 72 may be attached to the holding plate 2.

  5 and 6 are schematic cross sections of the holding plate 2 and the upper pin board 1 provided in the circuit board inspection apparatus 1 of this embodiment, and show a state in which the upper pin board 1 is mounted on the holding plate 2. As in FIGS. 1 and 2, the test probe 31 and the guide pin 32 (see FIG. 7) provided on the upper pin board 3 are omitted in FIGS. 5 and 6.

  As shown in FIGS. 5 and 6, in this embodiment, the holding plate 2 is provided with a movable pin 72 as a convex portion for regulating the position of the upper pin board 3 relative to the holding plate 2. The upper pin board 3 is provided with a restriction hole 72 as a recess into which the movable pin 72 is fitted to restrict the position of the upper pin board 3 relative to the holding plate 2 so as to penetrate the upper pin board. ing. The movable pin 72 has a first position (fitting position) that protrudes toward the upper pin board 3 when the upper pin board 3 is attached to the holding plate 2 and engages with the restriction hole 71, and an inner side of the holding plate 2. It is possible to move between a second position (retracted position) where it is retracted and separated from the restriction hole 71. The movable pin 72 is urged toward the first position (fitting position) by a spring 73 as urging means.

  The configuration and operation method of the restriction hole 71, the movable pin 72, the spring 73, the pin accommodating portion 74, etc. constituting the pin board position restriction mechanism 7 are the same as those of the first embodiment except that the arrangement mode of these elements is different. Is the same.

  As described above, when the restriction hole 71 is provided in the upper pin board 3 and the movable pin 72 is provided in the holding plate 2 as in the present embodiment, the same effect as in the first embodiment is obtained. can get.

Other Embodiments Although the present invention has been described based on the specific embodiments, the present invention is not limited to the above-described embodiments. For example, in the above-described embodiments, the pin board held by the holding plate is described as being an upper pin board that can be moved back and forth and disposed on the upper side of the circuit board to be inspected. However, even when the pin board held by the holding plate is disposed below the circuit board to be inspected, or when the pin board is disposed at a predetermined position without moving back and forth with respect to the circuit board to be inspected. Even so, the present invention can be equally applied, and the same effect as the above-described embodiment can be obtained.

DESCRIPTION OF SYMBOLS 1 Circuit board inspection apparatus 2 Holding board 3 Upper pin board (pin board)
7 Pinboard position restriction mechanism 71 Restriction hole (recess)
72 Movable pin (convex)
73 Spring (biasing means)
74 pin housing

Claims (5)

A holding plate arranged so that its main plane is substantially parallel to the main plane of the circuit board to be inspected, and a test probe that comes into contact with a predetermined part of the circuit board to be inspected are provided. In a circuit board inspection device having a pin board,
The holding plate enables the pin board to move relative to the holding plate in a state where the main plane of the pin board is substantially parallel to the main plane of the holding plate, and the pin board is moved to the holding plate. A holding portion that holds the pinboard, and a recess for restricting the position of the pinboard relative to the holding plate,
The pin board has a holding receiving portion held by the holding portion of the holding plate, and a convex portion that fits the concave portion for regulating the position of the pin board with respect to the holding plate,
The convex portion protrudes toward the holding plate when the pin board is mounted on the holding plate, and is retracted to the inside of the pin board and detached from the concave portion. A circuit board inspection apparatus, wherein the circuit board inspection apparatus is movable toward and from the second position and is biased toward the first position by a biasing means. A holding plate arranged so that its main plane is substantially parallel to the main plane of the circuit board to be inspected, and a test probe that comes into contact with a predetermined part of the circuit board to be inspected are attached. In a circuit board inspection device having a pin board,
The holding plate enables the pin board to move relative to the holding plate in a state where the main plane of the pin board is substantially parallel to the main plane of the holding plate, and the pin board is moved to the holding plate. Holding part for holding, and a convex part for regulating the position of the pin board with respect to the holding plate,
The pin board has a holding receiving portion held by the holding portion of the holding plate, and a concave portion into which the convex portion is fitted for regulating a position of the pin board with respect to the holding plate,
The convex portion protrudes toward the pinboard when the pinboard is mounted on the holding plate and fits into the concave portion, and retracts to the inside of the holding plate and separates from the concave portion. A circuit board inspection apparatus, wherein the circuit board inspection apparatus is movable toward and from the second position and is biased toward the first position by a biasing means.   The circuit board inspection apparatus according to claim 1, wherein the holding plate advances and retreats with respect to a plane on which the circuit board to be inspected is arranged.   In the holding plate or the pin board on which the concave portion and the convex portion are provided, the end portion on the rear end side in the moving direction of the pin board with respect to the holding plate when the pin board is mounted on the holding plate And located at a position accessible from the outside of the opening that opens the inside of the circuit board inspection device provided in the circuit board inspection device with the pin board mounted on the holding plate The circuit board inspection apparatus according to claim 1, wherein the circuit board inspection apparatus is provided.   The concave portion is a through hole, and the through hole is formed so that the convex portion fitted therein can be pressed from one opening portion of the through hole and retracted to the second position. The circuit board inspection apparatus according to any one of claims 1 to 4.

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