JP2013042035A - Push jig for press fit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push jig for press fit capable of reducing the manufacturing cost while shortening the time required for design and manufacture, and ensuring a constant pressure stably for a press-fit component according to the type thereof.SOLUTION: The push jig for press-fit includes a pressure transmission jig 3 which is formed for each type of press-fit component 2 and transmits the pressure from a press to the press-fit component 2 while adjusting the pressure, and a positioning jig 5 which is formed for each type of printed wiring board 4 and positions the pressure transmission jig 3 at a predetermined position. The pressure transmission jig 3 has an attachment base 6 being attached separably and sharably to a plurality of types of positioning jig 5, a component pressing part 7 which is provided to slide vertically on the attachment base 6 and being pressed against the press-fit component 2, and a pressure adjustment spring 8 which is provided between the component pressing part 7 and the attachment base 6 and adjusts the pressure from the press.

Description

  The present invention relates to a press-fit jig for use in press-fit work, particularly press-fit mounting.

  5 and 6 are explanatory views showing an outline of press-fit mounting.

  As shown in FIGS. 5 and 6, when the press-fit component 2 such as a connector is mounted on the printed wiring board 4, a plurality of press-fit components 2 are inserted into the plurality of through holes 40 of the printed wiring board 4. The terminal 41 is aligned and inserted, the printed wiring board 4 and the press-fit component 2 are placed on the abutting jig 42, and the press-fit component 2 is pressed from above to press the press-fit component 2 and printed. The terminal 41 of the press-fit component 2 is press-fitted into the through hole 40 of the wiring board 4.

  A spring 44 is formed at the center of the terminal 41. When the spring 44 of the terminal 41 is crushed by the through hole 40, the printed wiring board 4 and the press-fit component 2 are electrically connected and physically connected. To be connected to.

  7 and 8 show an example of a conventional press fitting jig for press fit.

  As shown in FIGS. 7 and 8, the press-fit pressing jig 43 includes a base 46 interposed between the press machine 22 and the press-fit component 2, and a component pressing provided in the base 46 so as to be movable up and down. And a pressure adjusting spring 48 provided between the base portion 46 and the component pressing portion 47.

  When a press-fit operation is performed using the press-fit pressing jig 43, as shown in FIGS. 8A, 6A, and 6B, on the abutting jig 42 of the substrate placing jig 17. The printed wiring board 4 is placed, and the terminal 41 of the press-fit component 2 is lightly inserted into the through hole 40 of the printed wiring board 4. Next, the press-fitting pressing jig 43 is positioned so that the component pressing portion 47 comes directly above the corresponding press-fit component 2. Thereafter, as shown in FIG. 8 (b), pressure is applied from above to the base 46 of the press-fit pressing jig 43 by the press machine 22, and the terminal 41 of the press-fit component 2 is connected to the through hole 40 of the printed wiring board 4. Press fit into.

JP-A-6-283898 Japanese Patent Laid-Open No. 2003-19628

  By the way, the size of the printed wiring board 4 and the type, position, etc. of the press-fit component 2 to be mounted differ depending on the type. Therefore, as shown in FIG. There was a problem that the jig 43 was required. For this reason, when mounting the press-fit component 2 on a new printed wiring board 4, a dedicated press-fit pressing jig 43 must be newly designed and manufactured, which increases the manufacturing cost and increases the press-fit pressing force. There was a problem that it took time to design and manufacture the jig 43.

  Therefore, the object of the present invention is to solve the above-mentioned problems, reduce the manufacturing cost, reduce the time required for design and manufacturing, and can stabilize the pressure on the press-fit component to a constant pressure according to the type. The object is to provide a press fit pressing jig.

  In order to solve the above-mentioned problems, the present invention provides a press-fit pressing jig interposed between a press machine and a press-fit component when the press-fit component is pressed and mounted on a printed wiring board by a press. A pressure transmission jig that is formed for each type of the press-fit part and adjusts the pressure from the press machine and transmits the pressure to the press-fit part, and a pressure transmission jig that is formed for each type of the printed wiring board A positioning jig for positioning at a position, and the pressure transmission jig is mounted to the plurality of types of positioning jigs so as to be separable and sharable, and to be slidable up and down on the mounting base. A pressure part from a press provided between the part pressing part pressed against the press fit part and the part pressing part and the mounting base. Those having a pressure adjusting spring to be adjusted.

  In the positioning jig, an attachment hole for inserting and attaching the attachment base portion from above is formed so as to penetrate vertically, and a press-fit component on the printed wiring board is arranged.

  The positioning jig includes a positioning portion that is formed for each type of printed wiring board and is pushed down by a force from the press, and a holding portion that holds the positioning portion so that the positioning portion can be moved up and down. It is good to form separately from a positioning part, and to be formed so that it can be shared by the multiple types of positioning parts.

  According to the present invention, the manufacturing cost of a press-fit pressing jig can be reduced, and the design and manufacturing time of the press-fit pressing jig can be shortened. Moreover, the pressure with respect to a press-fit component can be stably made into the fixed pressure according to the kind.

It is a mimetic diagram of a press fitting jig for press fit concerning this embodiment. (A) is explanatory drawing of the state before attaching a pressure transmission jig to a positioning jig, (b) is explanatory drawing of the state after attaching a pressure transmission jig to a positioning jig, c) It is explanatory drawing of the state which positioned the printed wiring board and the press jig for press fits. (A) is explanatory drawing of the state which pressed the press jig for press fits with the press head of the press, (b) is explanatory drawing of the state which pulled up the press head. It is a schematic diagram of the press fitting jig for press fitting which shows other embodiment. It is explanatory drawing which shows the outline | summary of a press fit mounting, (a) shows the printed wiring board and the front of a press fit component, (b) shows the plane of a printed wiring board, (c) shows the bottom face of a press fit component. Show. It is explanatory drawing which shows the outline | summary of press fit mounting, (a) shows the state which press-fitted components were press-fitted in the printed wiring board with the press, (b) is the principal part of the printed wiring board and press-fit components before press-fitting (C) shows the principal parts of the printed wiring board and press-fit parts after press-fitting. It is a schematic diagram of the conventional press jig for press fits. It is explanatory drawing of the press fitting operation | work using the conventional press fitting jig, (a) shows the state which positioned the printed wiring board and the press fitting jig, (b) is the press head of a press machine The state which pressed the press jig for press fits is shown. It is a schematic diagram of a conventional press-fit pressing jig, and shows a plurality of types according to the type of printed wiring board.

  As shown in FIGS. 1 and 2, the press-fit pressing jig 1 is formed for each type of press-fit component 2, and adjusts the pressure from the press machine 22 (see FIG. 3) and transmits it to the press-fit component 2. And a positioning jig 5 that is formed for each type of printed wiring board 4 and positions the pressure transmission jig 3 at a predetermined position.

  The pressure transmission jig 3 is attached to a plurality of types of positioning jigs 5 so as to be separable and sharable, and a component pressing unit provided on the mounting base 6 so as to be slidable up and down and pressed against the press-fit component 2. And a pressure adjusting spring 8 which is provided between the component pressing portion 7 and the mounting base portion 6 and adjusts the pressure from the press machine 22.

  The mounting base 6 is formed in a block shape having different dimensions and shapes depending on the type of the press-fit component 2. The mounting base 6 is inserted into a mounting hole 9 of a positioning jig 5 which will be described later, and is attached to the mounting base 6 in order to regulate the insertion depth into the mounting hole 9. Convex part 10 which protrudes in is formed.

  The component pressing portion 7 is provided on the mounting base 6 so as to be slidable in the vertical direction, and is formed integrally with the rod-shaped slide portion 11 extending downward from the mounting base 6 and the lower end of the slide portion 11 and press-fit component 2. And a head portion 12 for pressing the press-fit component 2 formed in a block shape corresponding to the shape, size, and terminal arrangement.

  The pressure adjustment spring 8 is a coil spring and is provided between the head portion 12 and the mounting base portion 6. Further, the pressure adjusting spring 8 is arranged coaxially with the slide portion 11 so as to surround the outer periphery of the slide portion 11, so that the component pressing portion 7 can be stably biased downward with a simple structure. Yes. The pressure adjustment spring 8 has its spring strength and quantity adjusted according to the type of the corresponding press-fit component 2, so that the pressure from the press machine 22 can be adjusted to the optimum pressure according to the various press-fit components 2. It has become.

  The positioning jig 5 includes a positioning unit 13 that is formed for each type of the printed wiring board 4 and is pushed down by a force from the press machine 22 and a holding unit 14 that holds the positioning unit 13 so as to be movable up and down.

  The positioning portion 13 is formed in a plate shape or block shape having a size corresponding to the printed wiring board 4. The positioning portion 13 is formed with an attachment hole 9 penetrating vertically in order to insert and attach the attachment base 6 from above. The mounting hole 9 is formed by the arrangement of the press-fit component 2 on the printed wiring board 4 and is formed in a size and shape corresponding to the mounting base 6 of the pressure transmission jig 3 for the press-fit component 2. . In addition, the mounting hole 9 is formed with a convex portion accommodating portion 15 that accommodates the convex portion 10 of the mounting base portion 6, and contacts the convex portion 10 at the front end in the insertion direction when the mounting base portion 6 is inserted at a predetermined depth. A locking portion 16 that is in contact with and regulates the insertion depth of the convex portion 10 is formed. The locking portion 16 is set in the vertical direction so that the upper end of the mounting base 6 is slightly lower than the upper end of the positioning portion 13 when the mounting base 6 is accommodated in the mounting hole 9. As a result, not only the pressure transmission jig 3 but also the positioning portion 13 directly contacts the press machine 22 during the press-fit operation, and the positioning jig 5 is sandwiched between the press machine 22 and the base 24 (see FIG. 3). It has become stable. The mounting hole 9 has a smooth inner peripheral surface so that the pressure transmission jig 3 can be slidably inserted in the vertical direction.

  The holding portion 14 is provided on the fixed leg portion 18 placed on the base 24, the lift rod 19 provided so as to be able to move up and down while extending upward on the fixed leg portion 18, and the lift rod 19. In addition, a movable leg portion 20 provided in the positioning portion 13 and a return spring 21 provided between the fixed leg portion 18 and the movable leg portion 20 and biasing the movable leg portion 20 upward are provided. The return spring 21 maintains a stretched shape when the pressure transmission jig 3 is attached to all the mounting holes 9 of the positioning portion 13, and is retracted when the positioning portion 13 is pressed downward by the press machine 22. The strength is set.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 2A, when the press-fit component 2 is mounted on a new type of printed wiring board 4, first, a positioning jig 5 having a shape corresponding to the type and arrangement of the press-fit component 2 is newly provided. To make. The pressure transmission jig 3 is used only when there is a new type of press-fit component 2 that has not been press-fit mounted using the pressure transmission jig 3. For the type of press-fit component 2 that has been newly manufactured and has been press-fit mounted, the pressure transmission jig 3 used at that time is prepared.

  Next, as shown in FIG. 2B, the pressure transmission jig 3 is attached to each attachment hole 9 of the positioning jig 5. The mounting operation of the pressure transmission jig 3 can be performed simply by inserting the pressure transmission jig 3 into the mounting hole 9 from above. When the pressure transmission jig 3 is inserted into the mounting hole 9, the convex portion 10 of the mounting base 6 abuts on the locking portion 16 of the mounting hole 9 and the insertion depth is restricted. As a result, the pressure transmission jig 3 is positioned so that the bottom surface of the head portion 12 floats in the air at a predetermined height.

  Thereafter, as shown in FIG. 2C, the substrate placing jig 17 is placed on the base 24, and the printed wiring board 4 is placed on the abutting jig (not shown) of the substrate placing jig 17, A terminal (not shown) of the press-fit component 2 is lightly inserted into a through hole (not shown) of the printed wiring board 4 and the press-fit component 2 is arranged on the printed wiring board 4. The press-fitting push jig 1 is positioned so that the pressure transmission jigs 3 for the respective press-fit parts 2 come on top.

  After that, as shown in FIG. 3A, pressure is applied to the press fitting jig 1 from above by the press head 23 of the press machine 22. The pressure transmission jig 3 is pushed down together with the positioning portion 13 and the movable leg portion 20, and transmits pressure to each press-fit component 2. At this time, the pressure adjusting spring 8 of the pressure transmitting jig 3 adjusts the pressure acting on the press-fit component 2 by degenerating. The terminal of the press-fit component 2 that has received pressure is press-fitted into the through hole of the printed wiring board 4, and the press-fit component 2 is mounted on the printed wiring board 4.

  Thereafter, as shown in FIG. 3B, when the press head 23 of the press machine 22 is pulled up, the movable leg portion 20 rises together with the positioning portion 13 and the pressure transmission jig 3 by the spring force of the return spring 21. . Thereby, the pressure transmission jig 3 is separated from each press-fit component 2, and the printed wiring board 4 can be easily detached from the board placing jig 17.

  Thus, the press-fitting push jig 1 is formed for each type of press-fit component 2, and the pressure transmission jig 3 that adjusts the pressure from the press 22 and transmits the pressure to the press-fit component 2, and the printed wiring board. And a positioning jig 5 for positioning the pressure transmission jig 3 at a predetermined position formed for each of the four types, and the pressure transmission jig 3 is separably attached to a plurality of types of positioning jigs 5 From the pressing machine 22 provided between the component pressing portion 7 and the mounting base 6. And a pressure adjusting spring 8 for adjusting the pressure of the other printed wiring board 4 even when press-fit mounting is performed on a new printed wiring board 4. The pressure transmission jig 3 for the press-fit component 2 that has been mounted can be shared, and the manufacturing cost of the press-fit press jig 1 can be reduced, and the design of the press-fit press jig 1 can be reduced. Production time can be shortened. As a result, the mass production start-up period can be shortened. In addition, since the proven pressure transmission jig 3 can be used as it is, the pressure on the press-fit component 2 can be stabilized to a constant pressure corresponding to the type, and the quality of press-fit mounting can be stabilized.

  Further, the positioning jig 5 is formed with an attachment hole 9 for inserting and attaching the attachment base 6 from above, and is formed by arranging the press-fit component 2 on the printed wiring board 4. Therefore, the pressure transmission jig 3 can be inserted into the positioning jig 5 from above and easily attached, and the press-fit pressing jig 1 can have a simple structure.

  Further, the mounting base 6 is formed with a convex portion 10 projecting sideways, and the mounting hole 9 is engaged with the convex portion 10 at the front end in the insertion direction so as to restrict the insertion depth of the mounting base 6. Since the portion 16 is formed and the positioning jig 5 is attached to the mounting hole 9 with the insertion depth regulated by the locking portion 16, the pressure transmission jig 3 can be more easily attached to the positioning jig 5. While being able to attach, the press fitting push jig 1 can be made into a simpler structure.

  Further, the pressure transmission jig 3 is formed so that the size and shape of the mounting base 6 are different for each type of the corresponding press-fit component 2, and the mounting hole 9 of the positioning jig 5 is formed in the mounting base 6 to be mounted. Since it is formed to have a corresponding size and shape, it is possible to prevent an artificial mistake of attaching another type of pressure transmission jig 3 to the mounting hole 9 by mistake, and to perform press-fit mounting stably. .

  The attachment base 6 may be formed so that the shape when viewed from above is asymmetrical in the front-rear direction or asymmetrical in the left-right direction. The direction of the pressure transmission jig 3 attached to the attachment hole 9 can always be made constant, and press-fit mounting can be performed more stably when the terminals of the printed wiring board 4 are biased. .

  Next, another embodiment in which the positioning jig 5 is modified will be described. The description of the same configuration as described above is omitted, and the same reference numerals are given.

  As shown in FIG. 4, the positioning jig 30 is formed for each type of the printed wiring board 4 and is pushed down by a force from the press 22 and a holding part 32 that holds the positioning part 31 so as to be movable up and down. With. Regardless of the type of the printed wiring board 4, the positioning portion 31 of the portion held by the holding portion 32 is formed in the same size plate shape or block shape. An attachment hole 9 is formed in the positioning portion 31 of the positioning jig 30. The holding portion 32 is formed separately from the positioning portion 31 and is formed so as to be shared by a plurality of types of positioning portions 31. Specifically, the holding portion 32 includes a fixed leg portion 18, an elevating rod 19, a movable leg portion 33 provided on the elevating rod 19 for detachably supporting the positioning portion 31, and a return spring 21. With. The movable leg 33 has a base part 34 for placing the positioning part 31 and has a flange part 35 for restricting the positioning part 31 on the base part 34 from moving in the horizontal direction.

  As described above, the positioning jig 30 includes the positioning unit 31 that is formed for each type of the printed wiring board 4 and is pressed down by the force from the press machine 22, and the holding unit 32 that holds the positioning unit 31 so as to be movable up and down. Since the holding part 32 is formed separately from the positioning part 31 and is formed so as to be shared by a plurality of types of positioning parts 31, the holding part 32 can be shared by a plurality of types of positioning jigs 30. The manufacturing cost of the press-fit pressing jig 36 can be further reduced.

DESCRIPTION OF SYMBOLS 1 Press fitting push jig 2 Press fit component 3 Pressure transmission jig 4 Printed wiring board 5 Positioning jig 6 Mounting base 7 Component pressing portion 8 Pressure adjusting spring 9 Mounting hole 10 Protruding portion 11 Sliding portion 12 Head portion 13 Positioning part 14 Holding part 15 Protruding part accommodating part 16 Locking part 17 Substrate placing jig 18 Fixed leg part 19 Lifting rod 20 Movable leg part 21 Return spring 22 Press machine 23 Press head 24 Base 30 Positioning jig 31 Positioning Part 32 holding part 33 movable leg part 34 base part 35 collar part

Claims (3)

  In a press-fit pressing jig interposed between a press machine and a press-fit component when a press-fit component is pressed and mounted on a printed wiring board with a press machine, the press-fit component is formed for each type of the press-fit component. A pressure transmission jig that adjusts the pressure from the press machine and transmits the pressure to the press-fit component, and a positioning jig that is formed for each type of the printed wiring board and positions the pressure transmission jig at a predetermined position. The pressure transmission jig is detachably and sharably attached to the plurality of types of positioning jigs, and the component pressing unit that is slidable up and down on the mounting base and is pressed against the press-fit component And a pressure adjusting spring provided between the component pressing portion and the mounting base for adjusting the pressure from the press. Jig press for press-fit and said Rukoto.   2. The positioning jig is formed with a mounting hole for inserting and mounting the mounting base portion from above, and is formed by arranging press-fit parts on the printed wiring board. The press-fit pressing jig as described.   The positioning jig includes a positioning portion that is formed for each type of printed wiring board and is pushed down by a force from the press, and a holding portion that holds the positioning portion so that the positioning portion can be moved up and down. The press-fit pressing jig according to claim 1 or 2, wherein the press-fit pressing jig is formed separately from the positioning portion and formed to be shared by the plurality of types of positioning portions.