JP4865325B2 - Circuit board holder - Google Patents

Description

  The present invention relates to a circuit board holder that is configured to be able to hold a circuit board and is used for an electrical inspection performed by bringing a probe into contact with the circuit board.

As an apparatus provided with this type of circuit board holder, a circuit board inspection apparatus disclosed by the applicant in Japanese Patent Application Laid-Open No. 2001-13190 is known. This circuit board inspection apparatus includes a substrate mounting table as a circuit board holder, and the substrate mounting table is formed with a board insertion hole into which a circuit board to be inspected can be inserted. In this case, since the board insertion hole is formed in a shape complementary to the outer shape of the circuit board, the circuit board inserted into the board insertion hole is positioned while preventing its horizontal movement. Further, in this circuit board inspection apparatus, the circuit board is fixed by the board mounting table and the board fixing plate by inserting the board fixing plate into the fixing plate insertion hole formed in the upper part of the board insertion hole.
Japanese Patent Laid-Open No. 2001-13190 (page 3-4, FIG. 1-5)

  However, the circuit board inspection apparatus has the following problems to be improved. That is, in this circuit board inspection apparatus, the circuit board is prevented from moving by inserting the circuit board into a board insertion hole having a shape complementary to the outer shape of the circuit board. For this reason, in order to make it possible to inspect a plurality of types of circuit boards having different external shapes, a plurality of substrate mounting tables in which substrate insertion holes matching the external shape of each circuit board are formed. Therefore, in this circuit board inspection apparatus, it is difficult to reduce the cost because a plurality of substrate mounting tables are required. In addition, when exchanging the substrate mounting table according to the circuit board to be inspected, for example, alignment work between the installation position of the substrate mounting table and the installation position of the moving mechanism for moving the probe, Work of height adjustment occurs. For this reason, realization of the circuit board holder which can improve the inspection efficiency at the time of inspecting a plurality of kinds of circuit boards is desired.

  The present invention has been made in view of the problems to be improved, and a main object of the present invention is to provide a circuit board holder capable of realizing cost reduction and inspection efficiency improvement.

In order to achieve the above object, a circuit board holder according to claim 1 is configured to be able to hold a circuit board, and is used for electrical inspection of the circuit board, wherein the circuit board is mounted on the circuit board holder. A first plate-like body in which a fitting hole that can be fitted is formed, and a fitting portion in which the first plate-like body can be attached are formed, and the fitting hole of the first plate-like body that is attached to the attachment portion. A base part that holds the circuit board fitted in the base part, and the base part includes a body part in which an opening part is formed and a step part is formed at a mouth edge part of the opening part. A second plate-like body that is configured to be fitted and formed with the respective insertion holes, and the mounting portion includes the step portion of the main body portion and the second portion that is fitted to the step portion. It is constituted by a plate-like body, to the mounting portion, up for inspection The chromatography Bed can be inserted a plurality of insertion holes are formed in a predetermined arrangement pitch.

The circuit board holder according to claim 2 is the circuit board holder according to claim 1 , wherein the base portion is formed around an intake hole penetrating the base portion and the mounting portion. And an intake groove communicating with the hole.

  According to the circuit board holder according to claim 1, the first plate-like body in which the fitting hole into which the circuit board can be fitted is formed, the attachment portion to which the first plate-like body can be attached, and the attachment portion are formed. And a base portion for holding the circuit board fitted in the fitting hole of the first plate-like body attached to the plurality of insertion holes, and a plurality of insertion holes into which the inspection probes can be inserted are formed in the attachment portion at a predetermined arrangement pitch. Thus, by preparing a plurality of types of first plate bodies having different sizes and shapes of the fitting holes, it is possible to inspect a plurality of types of circuit boards having different sizes and shapes simply by replacing the first plate bodies. It can be performed. Therefore, the cost can be sufficiently reduced as compared with the conventional configuration in which the circuit board holder (substrate mounting table) itself needs to be replaced for each type of circuit board. Moreover, since it is only necessary to replace the first plate-like body, unlike the conventional configuration (which replaces the circuit board holder itself), for example, the installation position of the circuit board holder and the installation position of the moving mechanism It is possible to eliminate the work of alignment, the work of adjusting the height of the circuit board holder, and the like. Therefore, it is possible to reliably improve the inspection efficiency when inspecting a plurality of types of circuit boards.

Further, according to the circuit board holder of this, a main body stepped portion is formed on the rim of the opening with an opening is formed, the insertion holes together so can be fitted to the stepped portion formed is The base plate portion is configured with the formed second plate-shaped body, and the mounting portion is configured with the stepped portion of the main body portion and the second plate-like body fitted into the stepped portion, thereby contacting the probe. Even when a plurality of types of circuit boards having different arrangement pitches of terminals to be inspected, a plurality of types of second plate-like bodies having insertion holes formed at arrangement pitches corresponding to the arrangement pitches are prepared. Thus, it is possible to inspect these plural types of circuit boards simply by exchanging the second plate-like body.

According to the circuit board holder of the second aspect of the present invention, the base portion is configured by including the intake holes that penetrate the base portion and the intake grooves that are formed around the mounting portion and communicate with the intake holes. The space above the circuit board holder holding the circuit board is closed by, for example, a plate-shaped shutter, and air in the space formed by the circuit board holder and the shutter is sucked through the intake groove and the intake hole. Thus, the shutter can be adsorbed on the surface of the circuit board holder. For this reason, as a result of being able to press a circuit board toward a base part with a shutter, a circuit board can be certainly held with a circuit board holder.

  Hereinafter, the best mode of a circuit board holder according to the present invention will be described with reference to the accompanying drawings.

  First, the configuration of the circuit board inspection apparatus 1 will be described with reference to the drawings.

  A circuit board inspection apparatus 1 shown in FIG. 1 is an example of an inspection apparatus provided with a circuit board holder according to the present invention. The circuit boards P1, P2, and P3 shown in FIG. The circuit board P can be electrically inspected in a state where the probes 72 and 82 (see FIG. 1) are in contact with terminals disposed on both sides of the P). Here, the circuit boards P1 and P2 include a plurality of terminals arranged in a matrix with a pitch of about 1 mm, for example. The circuit board P1 is formed in a substantially square shape with one side of about 30 mm, and the circuit board P2 is formed in a substantially square shape with one side of about 40 mm. The circuit board P3 is configured to include a plurality of terminals arranged in a matrix at a pitch of about 1.2 mm, for example, and is formed in a substantially square shape with one side of about 60 mm.

  Further, as shown in FIG. 1, the circuit board inspection apparatus 1 includes a table 2, a circuit board holder 3, shutters 4 and 4, an opening / closing mechanism 5, an intake device 6, moving mechanisms 7 and 8, and a control unit 9. It is configured. As shown in FIG. 2, the table 2 is configured in a rectangular plate shape as a whole. Further, the table 2 is formed with an opening 21 having a rectangular shape in plan view, and a step portion 22 is formed so as to surround the mouth edge of the opening 21. In this case, the step portion 22 is sized so that the main body portion 30 (see the figure) of the circuit board holder 3 can be fitted, and the surface of the main body portion 30 and the surface of the table 2 in the mounted state are defined. The height from the flat surface portion 22a to the surface of the table 2 is defined so that is substantially flush, that is, substantially the same as the thickness of the main body portion 30. The table 2 is formed with an intake passage 23 (see also FIG. 1) that communicates from a portion facing the intake hole 34 (see the same figure) of the main body 30 in the fitted state to the side surface of the table 2. .

  The circuit board holder 3 is an example of the circuit board holder according to the present invention. As shown in FIG. 2, the circuit board holder 3 is provided with a main body 30, mounting plates 40a and 40b (hereinafter referred to as “mounting plate 40” when not distinguished from each other). ), And fitting plates 50a, 50b, 50c (hereinafter, also referred to as “fitting plate 50” when not distinguished), the circuit board P can be held. The main body 30 is formed in a rectangular plate shape and is screwed to the table 2 in a state where the main body 30 is fitted in the stepped portion 22 of the table 2. In addition, an opening 31 having a rectangular shape in plan view is formed in the main body 30, and a step 32 is formed so as to surround the rim of the opening 31. In this case, the stepped portion 32 is formed in a size that allows both the plates 40 and 50 to be fitted (attached) in a state where the movement of the mounting plate 40 and the fitting plate 50 is restricted, that is, substantially the same size as the both plates 40 and 50. Has been. Further, the height from the flat surface portion 32a of the step portion 32 to the surface of the main body portion 30 is such that the surface of the fitting plate 50 and the surface of the main body portion 30 are in a state where both the plates 40 and 50 are fitted (see FIG. 5). Is equal to each other (substantially flush), that is, to be substantially the same as the sum of the thicknesses of the stacked plates 40 and 50 in an overlapped state. Further, two columnar guide pins 33 functioning as guides when the mounting plate 40 and the fitting plate 50 are fitted into the stepped portion 32 are formed on the flat portion 32 a of the stepped portion 32. Further, four intake holes 34 penetrating the front and back of the main body 30 are formed at the four corners of the main body 30. An air intake groove 35 communicating with the air intake hole 34 is formed around the step 32 (opening 31) on the surface of the main body 30.

  The mounting plate 40 corresponds to the second plate-like body in the present invention, and is formed in a rectangular plate shape as shown in FIG. 2 so as to be fitted into the stepped portion 32 of the main body 30. Further, as shown in FIG. 3, a plurality of insertion holes 42 with a diameter of about 0.60 mm are formed in the nine areas 41 divided at equal intervals in the center of the mounting plate 40. Yes. In this case, each area 41 of the mounting plate 40a (hereinafter, the area 41 of the mounting plate 40a is also referred to as “area 41a”) is defined as a substantially square having a side of about 50 mm. Further, the insertion holes 42 formed in the area 41a are arranged in a matrix at the same predetermined pitch (about 1 mm in this example) as the terminals of the circuit boards P1 and P2. On the other hand, each area 41 of the mounting plate 40b (hereinafter, the area 41 of the mounting plate 40b is also referred to as “area 41b”) is defined as a substantially square having a side of about 70 mm. Further, the insertion holes 42 formed in the area 41b are arranged in a matrix at the same predetermined pitch (in this example, about 1.2 mm) as each terminal of the circuit board P3. In addition, the mounting plate 40 is formed with two guide holes 43 through which the guide pins 33 of the main body 30 are inserted when fitted into the step 32 of the main body 30. In this case, the main body 30 and the mounting plate 40 constitute a base body in the present invention. Further, the mounting portion in the present invention is constituted by the step portion 32 of the main body portion 30 and the mounting plate 40 fitted into the step portion 32.

  Each fitting plate 50 corresponds to the first plate-like body in the present invention. As shown in FIG. 2, the fitting plate 50 has a rectangular plate shape that has substantially the same thickness as the circuit board P and substantially the same size as the mounting plate 40. It is comprised so that it can fit in the step part 32 of the main-body part 30. As shown in FIG. Each fitting plate 50 is formed with nine fitting holes 51. In this case, the fitting hole 51 of the fitting plate 50a (hereinafter, the fitting hole 51 of the fitting plate 50a is also referred to as the “fitting hole 51a”) is formed in a substantially square shape having substantially the same size as the circuit board P1, and the circuit board P1 is formed. In addition to being configured to be fitted, the formation positions thereof are defined so as to face the respective areas 41a of the mounting plate 40a in a state of being superimposed on the mounting plate 40a. In addition, the fitting hole 51 of the fitting plate 50b (hereinafter, the fitting hole 51 of the fitting plate 50b is also referred to as the “fitting hole 51b”) is formed in a substantially square having the same size as the circuit board P2, and the circuit board P2 is fitted therein. In addition, the formation positions are defined so as to face the respective areas 41a of the placement plate 40a in a state of being superimposed on the placement plate 40a. Further, the fitting hole 51 of the fitting plate 50c (hereinafter, the fitting hole 51 of the fitting plate 50c is also referred to as the “fitting hole 51c”) is formed in a substantially square having substantially the same size as the circuit board P3, and the circuit board P3 is fitted therein. In addition to being configured, the formation positions are defined so as to face the respective areas 41b of the mounting plate 40b in a state of being superimposed on the mounting plate 40b. Each fitting plate 50 is formed with two guide holes 52 through which the guide pins 33 of the main body 30 are inserted when fitting into the stepped portion 32 of the main body 30.

  As shown in FIG. 1, the shutter 4 is moved along the direction in which the shutter 5 is moved toward and away from each other by the opening / closing mechanism 5, thereby opening the opening 21 of the table 2 (above the circuit board holder 3 fitted in the table 2). Open and close the space. The shutter 4 includes three openings 4a and three notches 4b as shown in FIGS. In this case, the shape of the opening 4a is defined as a rectangular shape slightly smaller than the outer shape of the circuit board P to be inspected. The notch 4b has the same shape and the same shape as the opening 4a by combining the notch 4b of one shutter 4 and the notch 4b of the other shutter 4 in a state where both shutters 4 are in contact with each other. The shape is defined so as to constitute a size opening. In addition, each opening 4a and each notch 4b are held by the circuit board in which the opening constituted by each opening 4a and each notch 4b is mounted on the table 2 in a state where both shutters 4 are in contact with each other. The formation positions are defined so as to face the fitting holes 51 of the fitting plate 50 in the tool 3.

  The opening / closing mechanism 5 opens / closes (moves) the shutter 4 under the control of the control unit 9. The intake device 6 operates according to the control of the control unit 9, thereby allowing air in the space formed by the circuit board holder 3 and the shutter 4 to flow into the intake groove 35, the intake hole 34, the intake path 23, and the intake pipe 61 ( Aspirate through (see Figure 1). The moving mechanism 7 controls the probe holder 71a (or 71b, see FIG. 1 below) attached to an arm not shown in accordance with the control of the control unit 9 when the probe holders 71a and 71b are not distinguished from each other. Is also moved below the table 2. In this case, a probe 72 formed in a needle shape (for example, a diameter of about 0.53 mm) that can be inserted through the insertion hole 42 of the mounting plate 40 is inserted into the probe holder 71a. Are held in a state of being arranged (planted) in a matrix at the same pitch as the insertion holes 42 formed in the same shape. The probe holder 71b holds the above-described probes 72 in a state where the same number of the probes 72 are arranged in a matrix at the same pitch as the insertion holes 42 formed in the area 41b of the mounting plate 40b. Has been. The moving mechanism 8 moves, for example, a probe holder 81 holding a single probe 82 above the table 2 under the control of the control unit 9. The control unit 9 controls the opening / closing mechanism 5, the intake device 6, and the moving mechanisms 7 and 8. In addition, the control unit 9 performs a predetermined electrical inspection on the circuit board P based on the inspection signal output or input via the probe 72 and the probe 82.

  Next, an inspection method for electrical inspection (hereinafter also simply referred to as “inspection”) for the circuit boards P1, P2, and P3 using the circuit board inspection apparatus 1 will be described with reference to the drawings.

    First, an inspection method for the circuit board P1 will be described. In the initial state, as shown in FIG. 1, it is assumed that the shutters 4 and 4 are separated from each other and the space above the circuit board holder 3 is opened. It is assumed that a probe holder 71a is attached to the arm of the moving mechanism 7. In this inspection, as shown in the figure, first, the main body portion 30 of the circuit board holder 3 is fitted into the step portion 22 of the table 2. In this state, the intake hole 34 of the main body 30 communicates with the intake passage 23 of the table 2. In this case, since the height from the flat surface portion 22a of the step portion 22 to the surface of the table 2 is defined to be substantially the same as the thickness of the main body portion 30, the surface of the table 2 and the main body portion 30 are in this state. Is almost flush with the surface. Next, the main body 30 is screwed to the table 2. Subsequently, as shown in FIG. 4, the mounting plate 40 a is fitted into the step portion 32 of the main body 30 while the guide pin 33 of the main body 30 is inserted into the guide hole 43 of the mounting plate 40 a. In this case, since the step part 32 is formed in the substantially same size as the mounting plate 40a, the movement of the mounting plate 40a is controlled reliably. In FIG. 5 and FIG. 5 to FIG. 8 described later, the table 2 is not shown for easy understanding of the invention.

  Next, as shown in FIG. 5, the guide pin 33 of the main body 30 is inserted into the guide hole 52 of the fitting plate 50 a, and the main body 30 is placed on the mounting plate 40 a fitted into the step 32. The fitting plate 50a is fitted into (attached to) the mounting portion in the present invention constituted by the step portion 32 of the portion 30 and the mounting plate 40a. In this case, since the step part 32 is formed in substantially the same size as the fitting plate 50a, the movement of the fitting plate 50a is reliably restricted. Further, since the height from the flat surface portion 32a of the step portion 32 to the surface of the main body portion 30 is defined to be substantially the same as the sum of the thicknesses of the stacked plates 40a and 50a, this state. Then, the surface of the table 2 and the main-body part 30 and the surface of the fitting plate 50a are substantially flush.

  Subsequently, as shown in FIG. 6, nine circuit boards P1 are fitted into the respective fitting holes 51a of the fitting plate 50a with the surface (lower surface) on which the terminals are disposed facing downward. At this time, the lower surface of the circuit board P1 is supported by the mounting plate 40a, whereby the circuit board P1 is held by the mounting plate 40a. In this case, since the fitting plate 50a is formed to have almost the same thickness as the circuit board P1, in this state, the surface of the table 2, the main body 30 and the fitting plate 50a is substantially flush with the surface of the circuit board P1. It has become. Further, in this state, since each fitting hole 51a of the fitting plate 50a and each area 41a of the mounting plate 40a are opposed to each other, each insertion formed in each terminal and each area 41a on the lower surface of the circuit board P1. The holes 42 are opposed to each other.

  Next, the circuit board inspection apparatus 1 is operated. At this time, as shown in FIGS. 7 and 8, the control unit 9 controls the opening / closing mechanism 5 to move the shutters 4 and 4 along the direction in which the shutters 4 and 4 are in contact with each other. Block the space. In this state, as shown in FIG. 8, the openings formed by the openings 4 a and the notches 4 b of the shutter 4 face the circuit boards P <b> 1 held by the circuit board holder 3. Yes. Subsequently, the control unit 9 operates the intake device 6. At this time, as shown in FIG. 9, the air in the space formed by the circuit board holder 3 and the shutter 4 becomes the intake groove 35, the intake hole 34, the intake passage 23, and the intake pipe 61 (see FIG. 1). ), The shutter 4 is adsorbed on the surface of the circuit board holder 3 (the fitting plate 50a and the main body 30). As a result, the circuit board P1 is pressed toward the mounting plate 40a by the shutter 4, and the circuit board P1 is securely held.

  Next, the control unit 9 controls the moving mechanism 7 to move the probe holder 71a below the table 2 and at a position facing one of the areas 41a of the mounting plate 40a. The movement of 71a is stopped. Subsequently, the control unit 9 controls the moving mechanism 7 to move the probe holder 71a in a direction approaching the circuit board P1 (in this example, upward). In this case, since the arrangement pitch of each insertion hole 42 formed in each area 41a of the mounting plate 40a and the arrangement pitch of the probes 72 are defined to be the same arrangement pitch as the arrangement pitch of the terminals on the circuit board P1, As shown in FIG. 10, each probe 72 is inserted through each insertion hole 42 and brought into contact with each terminal (not shown) of the circuit board P1. Next, the control unit 9 controls the moving mechanism 8 to move the probe holder 81 above the table 2 and at the position facing the terminal disposed on the surface of the circuit board P1. Stop moving. Subsequently, the control unit 9 controls the moving mechanism 8 to move the probe holder 81 in a direction close to the circuit board P1 (downward in this example), thereby, as shown in FIG. The probe 82 is brought into contact with the terminal on the surface of the substrate. Next, the control unit 9 performs an inspection on the circuit board P <b> 1 based on the inspection signal output or input via the probe 72 and the probe 82. Subsequently, the control unit 9 performs an inspection on the other circuit board P1 held by the circuit board holder 3 by operating in the same manner as described above.

  Next, when the inspection for all the circuit boards P1 held by the circuit board holder 3 is completed, the control unit 9 stops the operation of the intake device 6 and then controls the opening / closing mechanism 5 to perform both shutters. The space above the circuit board holder 3 is opened by moving the fourth and fourth members 4 in a direction away from each other. Thereby, the inspection of the circuit board P1 is completed.

  Next, an inspection method for the circuit board P2 will be described. Here, in this circuit board holder 3, it is possible to inspect a plurality of types of circuit boards P by replacing the fitting plate 50. In this case, in the inspection of the circuit board P2, since the circuit board P2 is larger than the fitting hole 51a of the fitting board 50a, the fitting board 50b in which the fitting hole 51b into which the circuit board P2 can be fitted is formed is used as the fitting board 50a. Use instead. For this reason, first, the fitting plate 50 a fitted into the step portion 32 of the main body 30 is removed, and the fitting plate 50 b is fitted into the step portion 32. Subsequently, nine circuit boards P2 are fitted into the respective fitting holes 51b of the fitting plate 50b with the surface (lower surface) on which the terminals are disposed facing downward. In this state, since each fitting hole 51b of the fitting plate 50b and each area 41a of the mounting plate 40a face each other, each terminal on the lower surface of the circuit board P2 and each insertion hole 42 formed in each area 41a. Are facing each other.

  Next, the circuit board inspection apparatus 1 is operated. At this time, after the control unit 9 closes the space above the circuit board holder 3 with the two shutters 4 and 4 in the same manner as the operation for the inspection of the circuit board P1 described above, Operate. Thereby, the circuit board P2 is pressed toward the mounting plate 40a by the shutter 4, and the circuit board P2 is securely held. Subsequently, the control unit 9 controls the moving mechanism 7 to move the probe holder 71a upward from a position below the table 2 facing one of the areas 41a of the mounting plate 40a. Let At this time, each probe 72 is inserted through each insertion hole 42 and brought into contact with each terminal of the circuit board P2 in the same manner as the operation for the inspection of the circuit board P1 described above.

  Next, the control unit 9 controls the moving mechanism 8 to move the probe holder 81 from the upper side to the lower side of the circuit board P2 in contact with the probe 72, so that the surface of the circuit board P2 is moved. The probe 82 is brought into contact with the terminal. Subsequently, the control unit 9 performs an inspection on the circuit board P <b> 2 based on the inspection signal output or input via the probe 72 and the probe 82. Next, the control unit 9 operates in the same manner as described above to execute the inspection for the other circuit board P2 held by the circuit board holder 3. Subsequently, when the inspection for all the circuit boards P2 held by the circuit board holder 3 is completed, the control unit 9 stops the operation of the intake device 6 and then separates the shutters 4 and 4 from each other. The space above the circuit board holder 3 is opened by moving along the direction of movement. Thereby, the inspection of the circuit board P2 is completed.

  Next, an inspection method for the circuit board P3 will be described. In this case, in the inspection of the circuit board P3, since the circuit board P3 is larger than the fitting hole 51b of the fitting board 50b, the fitting board 50c in which the fitting hole 51c into which the circuit board P3 can be fitted is formed is used as the fitting board 50b. Use instead. Further, since the circuit board P3 is larger than the size of the area 41a of the mounting plate 40a and the arrangement pitch of the terminals of the circuit board P3 is different from the arrangement pitch of the insertion holes 42 formed in the area 41a, the circuit board A mounting plate 40b having an area 41b having a size larger than P3 and the same arrangement pitch is used instead of the mounting plate 40a. For this reason, first, the mounting plate 50 b and the mounting plate 40 a that are inserted into the step portion 32 of the main body 30 are removed, and the mounting plate 40 b and the mounting plate 50 c are inserted into the step portion 32. Next, the probe holder 71a attached to the arm of the moving mechanism 7 is removed, and the probe holder 71b is attached. Subsequently, nine circuit boards P3 are fitted into the respective fitting holes 51c of the fitting plate 50c with the surface (lower surface) on which the terminals are disposed facing downward. In this state, since each fitting hole 51c of the fitting plate 50c and each area 41b of the mounting plate 40b are opposed to each other, each terminal on the lower surface of the circuit board P3 and each insertion hole 42 formed in each area 41b. Are facing each other.

  Next, the circuit board inspection apparatus 1 is operated. At this time, after the control unit 9 closes the space above the circuit board holder 3 with both shutters 4 and 4 in the same manner as the operation for the inspection of the circuit boards P1 and P2, the air intake device 6 is activated. Thereby, the circuit board P3 is pressed toward the mounting plate 40b by the shutter 4, and the circuit board P3 is securely held. Subsequently, the control unit 9 controls the moving mechanism 7 to move the probe holder 71b upward from a position below the table 2 facing one of the areas 41b of the mounting plate 40b. Let At this time, each probe 72 is inserted through each insertion hole 42 and brought into contact with each terminal of the circuit board P3 in the same manner as in the inspection for the circuit boards P1 and P2.

  Next, the control unit 9 controls the moving mechanism 8 to move the probe holder 81 from the upper side to the lower side of the circuit board P3 with which the probe 72 is in contact, so that the surface of the circuit board P3 is moved. The probe 82 is brought into contact with the terminal. Subsequently, the control unit 9 performs an inspection on the circuit board P3 based on an inspection signal output or input via the probe 72 and the probe 82. Next, the control unit 9 operates in the same manner as described above to execute an inspection for the other circuit board P3 held by the circuit board holder 3. Subsequently, when the inspection for all the circuit boards P3 held by the circuit board holder 3 is completed, the control unit 9 stops the operation of the intake device 6 and then separates the shutters 4 and 4 from each other. The space above the circuit board holder 3 is opened by moving along the direction of movement. Thereby, the inspection for the circuit board P3 is completed.

  Thus, according to the circuit board holder 3, the fitting plate 50 in which the fitting hole 51 into which the circuit board P can be fitted is formed, and the fitting hole 51 of the fitting board 50 in which the fitting plate 50 can be mounted and in the mounted state. A plurality of insertion holes 42 through which the probes 72 can be inserted at a predetermined arrangement pitch that is the same as the arrangement pitch of the terminals of the circuit board P. By forming a plurality of types of fitting plates 50 having different sizes and shapes of the fitting holes 51 by forming the mounting plate 40, a plurality of types of circuits having different sizes and shapes can be obtained simply by replacing the fitting plate 50. Inspection of the substrate P can be performed. Therefore, the cost can be sufficiently reduced as compared with the conventional configuration in which the circuit board holder (substrate mounting table) itself needs to be replaced for each type of circuit board P. Further, since it is only necessary to replace the fitting plate 50, for example, the installation position of the circuit board holder 3 and the installation positions of the moving mechanisms 7 and 8 are different from the conventional configuration (which replaces the circuit board holder itself). And the work of adjusting the height of the circuit board holder 3 can be made unnecessary. Therefore, it is possible to reliably improve the inspection efficiency when inspecting a plurality of types of circuit boards.

  Further, according to the circuit board holder 3, the main body portion 30 in which the step portion 32 to which the fitting plate 50 can be attached is formed at the rim portion of the opening portion 31, and the mounting plate 40 in which the insertion hole 42 is formed. Even when a plurality of types of circuit boards P having different terminal arrangement pitches are inspected, a plurality of types of mounting holes 42 in which the insertion holes 42 are formed at an arrangement pitch corresponding to each arrangement pitch. By preparing the mounting plate 40, these plural types of circuit boards P can be inspected simply by replacing the mounting plate 40.

  Further, according to the circuit board holder 3, the circuit board is provided by including the intake hole 34 that penetrates the main body portion 30 and the intake groove 35 that is formed around the step portion 32 and communicates with the intake hole 34. The space above the circuit board holder 3 holding P is closed by the shutter 4, and the air in the space formed by the circuit board holder 3 and the shutter 4 is sucked through the intake groove 35 and the intake hole 34. Thus, the shutter 4 can be adsorbed on the surface of the circuit board holder 3 (the fitting plate 50 and the main body 30). For this reason, as a result of the circuit board P being pressed toward the mounting plate 40 by the shutter 4, the circuit board P can be reliably held by the circuit board holder 3.

Incidentally, if example embodiment, although an example in which the base portion of the present invention with a body portion 30 which is formed separately from the mounting plate 40, the structure integrally formed with a plate 40 mounting the main body portion 30 It can also be adopted. Further, although the fitting plate 50 in which the nine fitting holes 51 are formed has been described as an example, the number of the fitting holes 51 is not limited to this, and can be defined as an arbitrary number. In this case, the number of areas 41 in the mounting plate 40 can be defined to be the same as the number of the fitting holes 51. Further, for example, it is possible to adopt a configuration in which a wide area including a plurality of areas 41 is defined and the insertion hole 42 is formed in this area, or the insertion hole 42 is formed over the entire surface of the mounting plate 40. The structure to form, ie, the structure which forms the penetration hole 42 in a wide area where all the areas 41 are included, is also employable. In the inspection, the configuration example in which the probe holders 71a and 71b are replaced with the arm of the moving mechanism 7 in accordance with the arrangement pitch of the terminals on the circuit board P has been described above, but both the probe holders 71a and 71b can be attached in advance. For example, a configuration in which the moving mechanism 7 is configured such that the control unit 9 moves one of the probe holders 71a and 71b with respect to the moving mechanism 7 in accordance with the operation of the operating unit may be employed. In addition, the probe holders 71a and 71b in which a plurality of probes 72 are arranged (planted) have been described as an example, but a probe holder 71 in which a single probe 72 is arranged can also be used. Furthermore, a probe holder 71 in which the same number of probes 72 as the insertion holes 42 formed in a plurality or all of the areas 41 in the mounting plate 40 can be used.

1 is a configuration diagram showing a configuration of a circuit board inspection device 1. FIG. It is a perspective view of the table 2, the circuit board holder 3, and the circuit boards P1, P2, and P3. 3 is a plan view of an area 41 in the mounting plate 40. FIG. 4 is a perspective view of a state in which a mounting plate 40a is fitted into the main body 30. FIG. 4 is a perspective view of a state in which a mounting plate 40a and a fitting plate 50a are fitted into the main body 30. FIG. 3 is a perspective view of a state in which a circuit board P1 is fitted into the circuit board holder 3. FIG. FIG. 4 is a perspective view of a state where a space above the circuit board holder 3 is closed by shutters 4 and 4. FIG. 4 is a plan view showing a state where a space above the circuit board holder 3 is closed by shutters 4 and 4. It is the sectional view on the AA line in FIG. It is sectional drawing of the state which has contacted the probes 72 and 82 with the circuit board P1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Circuit board holder 30 Main body part 31 Opening part 32 Step part 34 Intake hole 35 Intake groove 40, 40a, 40b Mounting board 41a Insertion hole 50, 50a-50c Insertion board 51 Insertion hole 72, 82 Probe P, P1-P3 Circuit board

Claims (2)

A circuit board holder configured to hold a circuit board and used for electrical inspection of the circuit board,
A first plate-like body formed with a fitting hole into which the circuit board can be fitted, and a mounting portion on which the first plate-like body can be attached, and the first plate-like body attached to the attachment portion. A base portion for holding the circuit board fitted in the fitting hole of
The base portion is formed with an opening portion and a body portion formed with a step portion at a mouth edge portion of the opening portion, and is configured to be fitted into the step portion, and the insertion holes are formed therein. Comprising two plate-like bodies,
The mounting portion includes the step portion of the main body portion and the second plate-like body fitted into the step portion,
A circuit board holder in which a plurality of insertion holes into which the inspection probes can be inserted are formed in the mounting portion at a predetermined arrangement pitch. The base unit includes a suction hole penetrating the base portion, the circuit board holder of that claim 1, wherein a suction groove communicates with the intake hole is formed on the periphery of the mounting portion.

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