JP5579549B2 - Connector, method for assembling the connector, and terminal fixing jig - Google Patents

Description

  The present invention relates to a connector in which connection terminals are press-fitted into a plurality of terminal insertion holes provided in a plurality of stages in a connector housing, a method for assembling the connector, and a terminal fixing jig.

FIG. 41 shows an assembling method of the conventional connector 101 in which the connection terminals are attached by press fitting.
The connector 101 includes a resin connector housing 103 and a plurality of metal plate connection terminals 105 that are fitted into the connector housing 103 by press fitting.

  In the connector housing 103, an insertion hole row 110 in which a plurality of terminal insertion holes 111 into which the connection terminals 105 are press-fitted is arranged in a row is orthogonal to the direction in which the row extends (the direction of the arrow X1 in FIG. 41) (in FIG. , In the direction of arrow Y1). Conventionally, in this type of connector housing 103, the arrangement of the connection terminals 105 in each insertion hole row 110 is the same in any insertion hole row 110. That is, each terminal insertion hole 111 at each stage is arranged so as to be aligned with the terminal insertion hole 111 at another stage (see, for example, Patent Document 1 below).

  The connection terminal 105 is usually an integrated terminal (chain terminal) in which a portion corresponding to the plurality of terminal insertion holes 111 in one insertion hole row 110 is integrated by a connecting portion 121 that connects one end of each connection terminal 105. 120 (see, for example, Patent Documents 1 to 3 below). The integrated terminal 120 is integrally formed by press forming a metal plate.

  Each connection terminal 105 on the integrated terminal 120 is provided with a shoulder 123 for pressing at the time of press-fitting operation in a form protruding on both sides in the width direction of the terminal.

  The plurality of connection terminals 105 on the integrated terminal 120 are collectively press-fitted using a press-fitting jig 131.

  The press-fitting jig 131 has a plurality of slits 132 on the proximal end side of the connection terminal 105 to allow the narrow portion 124 adjacent to the shoulder portion 123 to be inserted. The width of the slit 132 is set to a width that the shoulder 123 cannot be inserted.

The collective press-fitting of the integrated terminal 120 into the connector 101 is performed as follows.
First, the position of each connection terminal 105 on the integrated terminal 120 is aligned with each terminal insertion hole 111 of one insertion hole row 110 of the connector housing 103 so that the connector housing 103 and the integrated terminal 120 face each other. Then, the narrow width portion 124 of each connection terminal 105 of the integrated terminal 120 facing the connector housing 103 is inserted into the slit 132 of the press-fitting jig 131. Next, when the press-fitting jig 131 is slid in the direction of the arrow Z1 in FIG. 41, the shoulder 123 of the connection terminal 105 is pressed toward the terminal insertion hole 111 by the press-fitting jig 131, and each connection terminal 105 is moved. It is press-fitted into the terminal insertion hole 111.

  In recent years, there has been a demand for a narrow pitch that narrows the arrangement pitch of the connection terminals 105 in the connector housing 103 by downsizing the board on which the connector 101 is mounted or by mounting at a high density. When the arrangement pitch of the connection terminals 105 is narrow, it is difficult to equip the shoulder portion 123, and the assembling method of pressing the shoulder portion 123 with the press-fitting jig 131 cannot be used.

  Therefore, Patent Document 1 below proposes an integrated terminal 120A shown in FIG. The integrated terminal 120 </ b> A has a bent portion 126 that is bent at a right angle from a portion that is press-fitted into the terminal insertion hole 111 on the proximal end side of the connection terminal 105 </ b> A extending from the connecting portion 121. The press-fitting jig 131A is configured to press the step of the bent portion 126.

Japanese Patent Laid-Open No. 06-333625 JP 2009-140752 A JP 2004-63101 A

  However, in the connectors of the above-mentioned patent documents, as shown in FIGS. 41 and 42, the terminal insertion holes 111 of each stage on the connector housing 103 are aligned with the terminal insertion holes 111 of other stages. Because of the structure, the integrated terminals formed by punching the metal plate can be integrally formed only at most up to two stages on the connector housing 103 side. Usually, the plurality of connection terminals 105 integrally formed as the integrated terminal 120 is one stage (one insertion hole row 110 minutes) on the connector housing 103 side, and the insertion hole rows 110 are arranged in multiple stages in the connector housing 103. In such a case, there is a problem that it is difficult to improve the assembly workability of the connector because it is necessary to repeat the press-fitting process of the integrated terminal 120 step by step.

  Further, the conventional method of press-fitting each connection terminal of the integrated terminal into the connector housing is to press the press-fitting jigs 131 and 131A against the shoulder 123 or the bent portion 126 on the proximal end side of the connection terminal 105, and With the pressing force applied from the press-fitting jigs 131 and 131A, each connection terminal 105 is pushed in all at once. However, the press-fitting connection terminals are inserted all at once because the terminal width and the like are set so that the fitting into the terminal insertion hole 111 is a tight fitting from the middle of the insertion into the terminal insertion hole 111. In this case, the sliding friction between the terminal insertion hole 111 and the connection terminal 105 increases rapidly during the insertion. For this reason, when the terminal width of the connection terminal is reduced due to the narrow pitch, the connection terminal may fall down, and the connection terminal may be damaged.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and by assembling a plurality of connection terminals arranged corresponding to the plurality of terminal insertion holes of the connector housing at a time, the assembly workability of the connector It is an object to provide a connector, a method for assembling the connector, and a terminal fixing jig.

The above-described object of the present invention is achieved by the following configuration .

(1) A connector housing in which a plurality of terminal insertion holes into which the connection terminals are press-fitted are arranged in a row in a direction orthogonal to the extending direction of the rows, and the plurality of terminal insertion holes A plurality of connection terminals mounted by press fitting to the connector,
The terminal insertion holes of each stage are arranged so that the positions of the terminal insertion holes do not overlap between different insertion hole rows,
The plurality of connection terminals include a rod-like terminal main body inserted into the terminal insertion hole and a retaining protrusion protruding in the middle of the terminal main body, and a press-fit portion press-fitted into the terminal insertion hole, A bent portion extending in a direction orthogonal to the insertion hole row from a base end of the press-fit portion, a connecting portion that connects the bent portions of the plurality of connecting terminals and integrates the plurality of connecting terminals; In a connector that is collectively press-fitted into the connector housing as an integrated terminal in which a plurality of connection terminals corresponding to a plurality of rows of insertion holes are integrated,
A connector assembly method for press-fitting and mounting the integrated terminal into a plurality of terminal insertion holes of the connector housing,
The operation of press-fitting each press-fitting part of the integrated terminal into each terminal insertion hole,
To the extent that the press-fit portion and the retaining projection of the contacts to the open end of the terminal insertion hole, insert only the tip end portion of each press-fit portion on the integrated terminal to the terminal insertion hole, wherein the integrated terminal A temporary press-fitting step for temporarily fixing the connector housing to the connector housing;
A main press-fitting step in which the integrated terminal is pushed into the terminal insertion hole side from the temporarily fixed state so that each press-fitting portion is press-fitted into each terminal insertion hole; and
The connector assembling method characterized by carrying out in two steps.

(2) In the temporary press-fitting step, the terminal insertion holes of the connector housing and the press-fitting portions of the integrated terminals are aligned to face each other, and then the bent portions are pressed and urged toward the terminal insertion holes. Thus, the connector assembly method according to (1) above , wherein each press-fitting portion of the integrated terminal is press-fitted into each terminal insertion hole.

(3) In the main press-fitting step, the base end of each press-fitting part is clamped and fixed by a pair of clamping members slidable in a direction perpendicular to the extending direction of the terminal row of the integrated terminal, and the pair of clamping One of the members includes a terminal receiving portion that is laminated on the surface of the bent portion extending from the base end of each press-fitting portion on the terminal insertion hole side,
The connector according to (1) or (2) , wherein the terminal receiving portion prevents the bent portion from being deformed by a pressing force applied to the bent portion for the main press-fitting. Assembly method.
(4) The insertion hole row in which the plurality of terminal insertion holes into which the connection terminals are press-fitted are arranged in a row in a direction perpendicular to the extending direction of the row, and the terminal insertion holes between different insertion hole rows In the connector housing in which the terminal insertion holes of each stage are arranged so that the positions of the terminals do not overlap, integrated terminals in which a plurality of connection terminals are integrally formed corresponding to the arrangement of the terminal insertion holes of the plurality of stages are bundled. A terminal fixing jig that clamps and fixes the base end side of each connection terminal when press-fitting and
A first pressing jig in which a plurality of first pressing pieces inserted between a plurality of connecting terminals arranged in a row in the front row on one side of the integrated terminal are arranged in a comb-teeth shape; A second pressing jig in which a plurality of second pressing pieces inserted between a plurality of connection terminals arranged in a line in the front row are arranged in a comb-teeth shape,
When the first pressing piece is inserted between the connecting terminals in the foremost row on one side of the integrated terminal, one side of the base ends of the plurality of connecting terminals arranged in a plurality of stages on one side of the first pressing piece A plurality of first abutting surfaces that abut against the first surface and the adjacent first abutting surfaces so that the plurality of first abutting surfaces are arranged in a stepped manner, and when inserted between the connection terminals, A first guide surface for guiding a base end of a connection terminal to the first contact surface,
The second pressing piece is a base of a plurality of connecting terminals arranged in a plurality of stages on the side facing the one side of the first pressing piece when inserted between the connecting terminals in the foremost row on the other side of the integrated terminal. A plurality of second contact surfaces that contact the other surface of the end and the second contact surfaces adjacent to each other so that the plurality of second contact surfaces are arranged in a stepped manner, and to the connection terminals A second guide surface that guides the base end of the connection terminal to the second abutment surface when inserted,
A terminal fixing jig, wherein a base end side of the integrated terminal is sandwiched and fixed by a first contact surface of the first pressing jig and a second contact surface of the second pressing jig.

According to the configuration of (1) above , in the temporary press-fitting step, the retaining protrusion of the press-fitted portion of the connection terminal does not enter the terminal insertion hole of the connector housing, so that the sliding friction between the connection terminal and the terminal insertion hole is small. Further, in this press-fitting process, the retaining protrusion of the press-fitting portion of the connection terminal is pushed into the terminal insertion hole, so that the sliding friction between the connection terminal and the terminal insertion hole is increased. However, since the press-fitting of the integrated terminal into the connector housing is performed in two stages, a temporary press-fitting process and a main press-fitting process, sliding friction does not increase rapidly during the press-fitting. For this reason, it is possible to prevent the inconvenience of the connection terminal from falling due to a sudden increase in sliding friction during the press-fitting process, and to securely press-fit each connection terminal of the integrated terminal into the connector housing.

According to the configuration of (2) above , since the press-fitting operation of the integrated terminal into the connector housing is performed by pressing the bent portion of the connection terminal, the connection terminal has a dedicated shoulder for pressing during press-fitting. There is no need to overhang in the width direction of the connection terminal. Therefore, it is easy to reduce the size of the connector by narrowing the arrangement pitch between the connection terminals.

According to the configuration of (3) above, the connection terminals that are press-fitted in the main press-fitting step are sandwiched by the pair of sandwiching members that are slidable in a direction orthogonal to the extending direction of the terminal row of the integrated terminals, The terminal receiving portion provided in the holding member is laminated on the surface of the bent portion of the connection terminal on the terminal insertion hole side, and is press-fitted in a state where the base end of the connection terminal is firmly fixed.
Therefore, even in the main press-fitting process in which sliding friction is increased, the connection terminal does not fall down during press-fitting, and the connection terminal can be reliably press-fitted, so that the assembly workability of the connector can be improved.

According to the configuration of (4) above , the first abutment provided on the comb-shaped first pressing piece of the first pressing jig with the base ends of the connection terminals formed in a plurality of stages as integrated terminals. And the second contact surface provided on the comb-shaped second pressing piece of the second pressing jig, so that when the integrated terminal is press-fitted in a lump, a plurality of stages are provided as the integrated terminal. It is possible to firmly fix each connection terminal formed in the above, and to facilitate the press-fitting process of the integrated terminal.

  According to the connector assembling method of the present invention, in the temporary press-fitting process, the retaining protrusion of the press-fitting portion of the connection terminal does not enter the terminal insertion hole of the connector housing, so that the sliding friction between the connection terminal and the terminal insertion hole is small. Further, in this press-fitting process, the retaining protrusion of the press-fitting portion of the connection terminal is pushed into the terminal insertion hole, so that the sliding friction between the connection terminal and the terminal insertion hole is increased. However, since the press-fitting of the integrated terminal into the connector housing is performed in two stages, a temporary press-fitting process and a main press-fitting process, sliding friction does not increase rapidly during the press-fitting. For this reason, it is possible to prevent the inconvenience of the connection terminal from falling due to a sudden increase in sliding friction during the press-fitting process, and to securely press-fit each connection terminal of the integrated terminal into the connector housing.

  According to the terminal fixing jig according to the present invention, the first ends of the connection terminals formed in a plurality of stages as integrated terminals are mounted on the comb-shaped first pressing piece of the first pressing jig. Because it is sandwiched between the contact surface and the second contact surface provided on the comb-shaped second pressing piece of the second pressing jig, when the integrated terminal is press-fitted in a lump, Each connection terminal formed in a plurality of stages can be firmly fixed, and the press-fitting process of the integrated terminal can be facilitated.

It is a perspective view from the back side of one embodiment of a connector concerning the present invention. It is a perspective view from the front side of the connector shown in FIG. It is a rear view of the connector shown in FIG. FIG. 2 is an exploded perspective view of the connector housing shown in FIG. 1, an integrated terminal that integrates a plurality of connection terminals that are press-fitted into the connector housing, and a housing holder to which the connector housing is attached during a press-fitting operation of the integrated terminal. (A) is a top view of the integrated terminal shown in FIG. 4, (b) is a front view of the integrated terminal shown in FIG. 4, (c) is a side view of the integrated terminal shown in FIG. (A) is an enlarged perspective view of the vicinity of the bent portion of each connection terminal on the integrated terminal shown in FIG. 4, and (b) is a plan view of the retaining protrusion of the press-fitting portion of the connection terminal shown in (a). is there. It is a perspective view which shows the state before fixing the housing holder to which the connector housing of one Embodiment was attached. (A) is an expanded perspective view of the state which has positioned the integrated terminal with the 1st pressing jig on a terminal mounting base, (b) is an enlarged view of the principal part of (a). (A) is the perspective view which looked at the attachment state of the integrated terminal shown in FIG. 8 from another angle, (b) is a plurality of first pressing pieces of the first pressing jig in (a). It is an expansion perspective view of the state which has positioned the base end of a connecting terminal. (A) is a top view of the state in which the integrated terminal is positioned on the terminal mounting base by the first pressing jig, (b) is the front view, and (c) is the side view. The temporary pressing-in apparatus shown in FIG. 20 has a second pressing jig attached to the terminal mounting base, and the temporary holding terminal is connected to the terminal pressing hole with the first pressing jig and the second pressing jig. It is a perspective view of a press-fitting device. (A) is an enlarged perspective view of the vicinity of the terminal mounting base of FIG. 11, and (b) is an enlarged view of the terminal mounting base and the terminal fixing jig shown in (a). It is a perspective view of the 1st press jig and the 2nd press jig attached to the terminal mounting base of a temporary press-fitting device. (A) is a front view of a state in which the comb-shaped first pressing piece of the first pressing jig and the comb-shaped second pressing piece of the second pressing jig are opposed to each other, and (b) is ( It is a front view in the state where the 1st press piece and the 2nd press piece which were shown to a) meshed mutually. FIG. 13A is an enlarged perspective view of the connection terminal clamped by the terminal fixing jig shown in FIG. 12B, and FIG. 13B is a side view of the connection terminal clamped by the terminal fixing jig. (A) is a plan view of a state in which the terminal fixing jig clamps and fixes each connection terminal of the integrated terminal, and (b) is the first pressing piece and the first pressing piece of the first pressing jig of the terminal fixing jig. FIG. 2C is an enlarged perspective view of a state in which the second pressing piece of the two pressing jig clamps the base end of the connection terminal, and FIG. FIG. 6D is a front view of the state in which the second holding piece of the holding jig clamps the base end of the connection terminal, and FIG. 6D is a diagram showing the first holding piece and the second holding jig of the first holding jig of the terminal fixing jig. It is an enlarged side view of the state which has clamped the base end of the connection terminal with the 2nd pressing piece of a tool. 7A is a perspective view from the housing support base side in a state where the housing holder is fixed to the housing support base in the temporary press-fitting device shown in FIG. 7, and FIG. 7B is a perspective view from the press-fit operation handle side in the temporary press-fitting device. FIG. (A) is the expansion perspective view of the connector housing fixed to the temporary press-fitting apparatus shown in FIG. 7 and an integrated terminal, (b) is the perspective view which looked at the state of (a) from another angle. . FIG. 8A is an enlarged perspective view of a housing holder that supports a connector housing in the temporary press-fitting device shown in FIG. 7, and FIG. 8B is a perspective view from the back side of the housing holder shown in FIG. It is a perspective view of the state which attached the integrated terminal shown in FIG. 5 to the 1st pressing jig of the terminal fixing jig on the terminal mounting base of the temporary press-fitting device shown in FIG. FIG. 21 is an enlarged perspective view of the vicinity of the terminal mounting base of FIG. 20. 17A is a perspective view of a state in which an operation lever that is a press-fitting operation portion of the temporary press-fitting device shown in FIG. 17 is rotated in the press-fitting direction, and the integrated terminal is press-fitted into the connector housing until it is temporarily fixed. FIG. 3 is a perspective view of the temporary press-fitting device of FIG. FIG. 23 is an enlarged perspective view of the connector housing and the integrated terminal of FIG. 22 in a temporarily press-fitted state. 22A is an enlarged side view of the connector housing and the integrated terminal of FIG. 22 in a temporarily press-fitted state, and FIG. 22B is a side view of the connection terminal inserted into the connector housing in the provisional press-fitted state of FIG. It is an enlarged view of the principal part of (b) of (c). In the temporary press-fitting device, after the press-fitting process is completed, the second pressing jig is removed from the terminal mounting base, the connection terminal is released from the clamping state of the terminal fixing jig, and then the terminal mounting base is returned to the original position. It is a perspective view of a state. (A) is an enlarged perspective view of the vicinity of the housing support base in the temporary press-fitting device shown in FIG. 25, and (b) is a perspective view of the vicinity of the housing support base of (a) as seen from another angle. (A) is a perspective view of the state where it was attached to the housing holder of the connector housing which the temporary press-fitting process was completed, and (b) is a perspective view of the state where the connector housing of (a) was removed from the housing holder. (A) is the perspective view which looked at the connector housing shown in FIG.27 (b) from another angle, (b) is the enlarged view of the principal part of (a). It is explanatory drawing of this press-fit apparatus which performs a main press-fit process with respect to the connector housing which finished the temporary press-fit process, (a) is a perspective view of the state which pulled out the housing support stand, (b) is the housing support stand of (a) FIG. 4C is a perspective view of a state in which the connector housing is mounted on the upper side, and FIG. 5C is a perspective view of a state in which the housing support with the connector housing mounted is moved to the main press-fitting position. FIG. 30 is a side view of the press-fitting device shown in FIG. 29. (A) is a perspective view of the 1st pressing jig with which the press-fitting punch of this press-fitting apparatus was equipped, (b) is a perspective view of the 2nd pressing jig with which a press-fit punch is slidably equipped. It is a perspective view which shows the attaching part of the 1st pressing jig in the press-fitting punch of this press-fit apparatus. (A) The perspective view of the state which the 2nd pressing jig of the terminal fixing jig equipped in the press-fitting punch of this press-fitting device has detached from the first pressing jig, (b) is a side view of (a) FIG. (A) The second pressing jig of the terminal fixing jig provided in the press-fitting punch of the press-fitting device meshes with the first pressing jig, and the base end of the connection terminal is held by the terminal fixing jig. (B) is a side view of (a). 34A is an H arrow view of FIG. 34B, FIG. 34B is an enlarged view of a portion where the comb teeth of FIG. 34A are meshed, and FIG. 34C is an I arrow view of FIG. (A) is a side view of a state in which the press-fitting punch of the press-fitting device has moved to a position where it comes into contact with the integrated terminal in a temporarily press-fitted state, and (b) is an enlarged view of the main part of (a). (A) is a terminal fixing jig provided in the press-fitting punch of the press-fitting device, and is a side view of a state in which the base end of the connection terminal in a temporarily press-fitted state is sandwiched, and (b) is a main part of (a). It is an enlarged view. (A) is a side view of the state in which the connection terminal is fully press-fitted into the connector housing by pressing the press-fitting punch from the state of FIG. 37 (a), and (b) is an enlarged view of the main part of (a). (A) is a side view of the state where the pinching by the terminal fixing jig is released after the main press-fitting is completed, and (b) is an enlarged view of the main part of (a). BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the state by which the connection terminal was press-fit in the terminal insertion hole of the whole stage of the connector housing shown in one Embodiment, (a) is a perspective view from the back side of a connector housing, (b) is the front surface of a connector housing The perspective view from the side, (c) is a rear view of the connector housing. It is a perspective view which shows the assembly method of the conventional connector. It is a perspective view which shows the assembly method of the conventional improved connector.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a connector and a connector assembling method according to the present invention, and a device and jig used in the connector assembling method will be described in detail with reference to the drawings.

  1 to 4 show an embodiment of a connector according to the present invention. FIG. 1 is a perspective view from the back side of the connector of the embodiment, and FIG. 2 is from the front side of the connector shown in FIG. FIG. 3 is a rear view of the connector shown in FIG. 4 shows a connector housing shown in FIG. 1, an integrated terminal in which a plurality of connection terminals press-fitted into the connector housing are integrated, and a housing holder to which the connector housing is attached when the integrated terminal is press-fitted. It is a disassembled perspective view.

  The connector 1 according to this embodiment includes a connector housing 11 and a plurality of connection terminals 21 that are press-fitted into a plurality of terminal insertion holes 12 provided in the connector housing 11.

  In the connector housing 11 of this embodiment, a plurality of terminal insertion holes 12 into which the connection terminals 21 are press-fitted are arranged in a row in the connector width direction (arrow X3 direction in FIG. 3). Are formed in a plurality of stages in a direction orthogonal to the extending direction of the row (the direction of arrow Y3 in FIG. 3). In the case of the illustrated example, the insertion hole row is formed in six stages.

  In FIG. 3, the terminal insertion holes 12 corresponding to the three stages (for the insertion hole rows 14a, 14b, 14c) located in the upper half of the connector housing 11 are arranged between the different insertion hole rows 14a, 14b, 14c. Are arranged so that their positions do not overlap. In other words, these three rows of insertion holes are arranged so as to be displaced from each other by an appropriate distance L1 in the direction of the arrow X3.

  In the case of the present embodiment, the terminal insertion holes 12 for three stages (for the insertion hole rows 14d, 14e, and 14f) located in the lower half of the connector housing 11 are arranged in the same manner as for the three stages located in the upper half. The position is shifted in steps.

  In the case of the present embodiment, the plurality of connection terminals 21 press-fitted into the three-stage terminal insertion holes 12 located in the upper half or the lower half of the connector housing 11 are the terminal insertion holes 12 in the three-stage insertion hole row. Are formed as an integrated terminal 20 in which a plurality of connection terminals 21 are integrated, and three stages of connection terminals 21 are collectively press-fitted into the connector housing 11.

  5 and 6 show the detailed structure of the integrated terminal 20 and the connection terminal 21, FIG. 5 (a) is a plan view of the integrated terminal 20 shown in FIG. 4, and FIG. FIG. 5C is a side view of the integrated terminal 20 shown in FIG. 6A is an enlarged perspective view near the bent portion of each connection terminal 21 on the integrated terminal 20 shown in FIG. 4, and FIG. 6B is a view of the connection terminal shown in FIG. It is a top view of the retaining protrusion of a press fit part.

  The integrated terminal 20 has a structure in which a plurality of connection terminals 21 corresponding to the three-stage terminal insertion holes 12 of the connector housing 11 are connected and integrated by a connecting portion 22, and is integrally formed by punching a metal plate.

  Each connection terminal 21 on the integrated terminal 20 includes a press-fit portion 21a that is press-fitted into the terminal insertion hole 12, and a direction orthogonal to the insertion hole rows 14a, 14b,... From the base end of the press-fit portion 21a (the arrow in FIG. 3). And a bent portion 21b extending in the Y3 direction).

  As shown in FIG.5 (c), the edge part 21c on the opposite side to the press-fit part 21a of the some bending part 21b is bent at right angle in the direction parallel to the press-fit part 21a, and is connected with the connection part 22. ing. As shown in FIG. 6, the press-fitting portion 21 a of each connection terminal 21 includes a straight rod-shaped terminal body 31 inserted into the terminal insertion hole 12, and a retaining protrusion 32 that protrudes in the middle of the terminal body 31. It is equipped with.

  The width dimension w1 of the terminal body 31 (see FIG. 6B) is set to be equal to or less than the width dimension of the terminal insertion hole 12, and can be easily inserted into the terminal insertion hole 12 with little sliding friction. However, the width dimension w2 (see FIG. 6B) of the retaining protrusion 32 is set to be equal to or larger than the width dimension of the terminal insertion hole 12, and the terminal insertion hole is accompanied by elastic deformation of the retaining protrusion 32. 12 is closely fitted. Therefore, when the retaining protrusion 32 is inserted into the terminal insertion hole 12, a sliding frictional force corresponding to the elastic deformation of the retaining protrusion 32 acts.

  The connection terminal 21 of this embodiment is a terminal to which the end of the bent portion 21b is soldered to the substrate. The bending portion 21b of each connection terminal 21 has an extension length in the direction of arrow Y3 in FIG. 3 corresponding to the height of the insertion hole row of the terminal insertion hole 12 into which the press-fitting portion 21a is press-fitted. Yes.

Next, a method for assembling the connector for press-fitting each connection terminal 21 of the integrated terminal 20 to the connector housing 11 will be described.
In the present embodiment, the operation of press-fitting each press-fit portion 21a of the integrated terminal 20 into each terminal insertion hole 12 of the connector housing 11 is performed in two steps, a temporary press-fit process and a main press-fit process.

  Here, in the temporary press-fitting step, only the tip side portion of each press-fit portion 21a on the integrated terminal 20 is connected to the terminal insert hole 12 so that the retaining protrusion 32 of the press-fit portion 21a contacts the opening end of the terminal insert hole 12. And the integrated terminal 20 is temporarily fixed to the connector housing. 27 and 28 described later show a state in which the integrated terminal 20 is temporarily fixed to the connector housing 11 after the temporary press-fitting process is completed.

  Further, the press-fitting process is a work process in which the integrated terminal 20 is further pushed into the terminal insertion hole 12 side from the temporarily fixed state so that the respective press-fitting portions 21a are completely press-fitted into the terminal insertion holes 12. 1 to 3 show a state in which the connecting portion 22 of the integrated terminal 20 is cut away and the plurality of connection terminals 21 are separated from each other after the main press-fitting process is finished.

  Next, the apparatus and jig used in the temporary press-fitting process will be described, and the features of the temporary press-fitting process of the present embodiment will be described.

  FIG. 7 shows the temporary press-fitting device 40 for performing the temporary press-fitting process, and is a perspective view showing a state before fixing the housing holder 47 to which the connector housing 11 is attached.

  The temporary press-fitting device 40 includes a terminal mounting base 41, a terminal fixing jig 42, a housing support base 43, a base 44, a press-fitting operation unit 45, and a housing holder 47.

8 to 10 show the terminal mounting base 41.
The terminal mounting base 41 is a substantially cubic block, and includes a bent portion abutting surface 412 in the upper half of the front surface 411 as shown in FIG. The bent portion contact surface 412 is a surface that contacts the back surface of the bent portion 21 b of the connection terminal 21 in the integrated terminal 20.

  A first pressing jig (terminal receiver) 48 that is a component of a terminal fixing jig 42 to be described later is fixed to the lower part of the front surface of the terminal mounting base 41. Further, as shown in FIG. 8, a jig positioning projection for positioning a second pressing jig (terminal pressing) 49, which is a component of a terminal fixing jig 42 described later, is provided on the upper surface of the terminal mounting base 41. 413 is provided. The first holding jig 48 and the second holding jig 49 will be described in detail later.

  As shown in FIGS. 11 and 12, the terminal fixing jig 42 includes a first holding jig 48 fixed to the lower portion of the front surface 411 of the terminal mounting base 41 and a first pressing jig 48 fixed to the upper surface of the terminal mounting base 41. 2 presser jig 49.

  The first holding jig 48 and the second holding jig 49 constituting the terminal fixing jig 42 are attached to the terminal mounting base 41 and a back surface of the bent portion 21b is brought into contact with the bent portion abutting surface 412. The proximal end of the press-fit portion 21a of the integrated terminal 20 is clamped and fixed.

  13 to 16 show the detailed structure of the first pressing jig 48 and the second pressing jig 49, and the first pressing jig 48 and the second pressing jig 49 serve as the base end portion of the connection terminal 21. The structure which clamps and fixes is shown in detail.

  As shown in FIGS. 13 to 16, the first pressing jig 48 is inserted between the plurality of connection terminals 21 arranged in a line in the foremost row on one side of the integrated terminal 20 (lower side in FIG. 15). The first pressing pieces 481 are arranged in a comb shape.

  Further, as shown in FIGS. 13 to 16, the second pressing jig 49 is inserted between the plurality of connection terminals 21 arranged in a line in the foremost row on the other side of the integrated terminal 20 (upper side in FIG. 15). A plurality of second pressing pieces 491 are arranged in a comb shape.

  As shown in FIG. 14, the first pressing piece 481 has three first contact surfaces 51, 52, 53 on one side (left side in FIG. 14) and these first contact surfaces 51, 52. , 53 are connected to each other in a stepped manner, and two guide slopes (guide surfaces) 54, 55 are provided.

  As shown in FIGS. 16B and 16C, the three first abutment surfaces 51, 52 and 53 are arranged such that the first pressing piece 481 is on one side of the integrated terminal 20 (on the lower side in FIG. 16C). ) Of the three connection terminals 21 arranged in three stages on one side of the first pressing piece 481 (left side in FIG. 16C). It abuts on the side surface (the lower side in FIG. 16C).

  The two guide inclined surfaces 54 and 55 connect the adjacent first contact surfaces so that the three first contact surfaces 51, 52, and 53 are arranged in a stepped manner, and the first pressing piece 481 between the connection terminals 21. At the time of insertion, the base end of the connection terminal 21 is guided to the first contact surfaces 51, 52, 53.

  As shown in FIG. 14, the second pressing piece 491 has three second contact surfaces 61, 62, 63 on one side (right side in FIG. 14), and these second contact surfaces 61, Two guide slopes 64 and 65 for connecting 62 and 63 in a staircase shape are provided.

  The three second contact surfaces 61, 62, and 63 are the surfaces on the other side of the base ends of the three connection terminals 21 arranged in three stages on one side (the right side in FIG. 14) of the second pressing piece 491. 16 (c) abuts on the upper surface).

  The two guide slopes 64, 65 connect the adjacent second contact surfaces so that the three second contact surfaces 61, 62, 63 are arranged stepwise, and a second pressing piece 491 between the connection terminals 21. At the time of insertion, the base end of the connection terminal 21 is guided to the second contact surfaces 61, 62, 63.

  As shown in FIGS. 14B and 16C, the terminal fixing jig 42 described above includes the first pressing piece 481 of the first pressing jig 48 and the second pressing jig 49. When the pieces 491 are engaged with each other, each connection arranged in three stages of the integrated terminal 20 by the first contact surface of the first presser jig 48 and the second contact surface of the second presser jig 49. The proximal end side of the terminal 21 is clamped and fixed together.

In the case of this embodiment, as shown in FIG. 16D, the second pressing jig 49 is laminated (contacted) on the surface of the bent portion 21b facing the terminal insertion hole side. It has.
The terminal receiving portion 493 prevents the bending portion 21b from being displaced by the pressing force applied to the bending portion 21b for temporary press-fitting, and prevents the bending portion 21b from being deformed.

  As shown in FIGS. 17 and 18, the housing support base 43 includes a base main body 431 fixed to the base 44 at a position facing the terminal mounting base 41, and a press provided rotatably on the base main body 431. A block 432 and a block operation lever 433 for rotating the pressing block 432 are provided.

  The base body 431 has a holder abutting surface 435 that abuts the rear end surface of the housing holder 47 on the side facing the terminal mounting base 41. The base body 431 positions the connector housing 11 supported by the housing holder 47 at a position facing the terminal mounting base 41 by bringing the rear end face of the housing holder 47 supporting the connector housing 11 into contact.

  The pressing block 432 is retracted above the base main body 431 as shown in FIG. 7 and descends from the retracted position onto the housing holder 47 and the connector housing 11 as shown in FIG. The connector housing 11 can be moved to a fixing position where the connector housing 11 is pressed and fixed to the base 44.

  The pressing block 432 is moved to the retracted position or the fixed position by rotating the block operation lever 433.

  As shown in FIG. 19, the housing holder 47 fixed on the base 44 by the housing support base 43 is provided with a housing mounting portion 471 for attaching the connector housing 11 to the front side. The height of the housing mounting portion 471 is set so that the upper end surface of the mounted connector housing 11 protrudes slightly above the upper end surface of the housing holder 47. This is because the pressing block 432 can reliably press the connector housing 11 as shown in FIG.

  As shown in FIG. 19A, the connector housing 11 is attached to the housing holder 47 so that the insertion side of the connection terminal 21 faces the terminal mounting base 41 side.

  In other words, the housing support base 43 is connected to the connector together with the housing holder 47 so that the terminal insertion hole 12 of the connector housing 11 is positioned at a position opposite to the press-fit portion 21a of the integrated terminal 20 fixed to the terminal mounting base 41. The housing is fixed to the base 44.

  The base 44 supports the terminal mounting base 41 and the housing support base 43 so as to be relatively movable in the press-fitting direction of the connection terminals 21. In the present embodiment, the housing support base 43 is fixed to the base 44, but the terminal mounting base 41 is slidably supported toward the housing support base 43 as indicated by an arrow Z4 in FIG. . An arrow Z4 in FIG. 17 is a direction in which the connection terminal 21 fixed to the terminal mounting base 41 is press-fitted into the connector housing 11 fixed by the housing support base 43.

  The press-fitting operation unit 45 moves the terminal mounting base 41 toward the housing support base 43 by a predetermined distance by raising the press-fitting operation lever 451 shown in FIG. 17 in the direction of arrow Z5 in the drawing. Due to the movement of the terminal mounting base 41 at this time, the integrated terminal 20 is pressed and urged toward the connector housing 11 by the bent portion abutting surface 412 of the terminal mounting base 41 with which the bent portion 21b abuts. The press-fitting portions 21 a of the connection terminals 21 of the integrated terminal 20 on the terminal mounting base 41 are temporarily press-fitted into the terminal insertion holes 12 of the connector housing 11 by the pressing force of the bent portion contact surface 412 at this time. Press fit to the position.

Next, the procedure of the temporary press-in process using the temporary press-in apparatus 40 described above will be described.
First, as shown in FIGS. 20 and 21, the integrated terminal 20 is positioned on the terminal mounting base 41 in a state where the first pressing jig 48 is attached to the front surface 411 of the terminal mounting base 41. At this time, the integrated terminal 20 has the front end of the connection terminal 21 facing the housing support base 43 side, and the back surface of the bent portion 21b is the bent portion of the terminal mounting base 41 as shown in FIG. It abuts on the contact surface 412.

  Next, as shown in FIGS. 11 and 12, the second pressing jig 49 is attached to the terminal mounting base 41. By attaching the second holding jig 49, the integrated terminal 20 on the terminal mounting base 41 is clamped at the base end of each connection terminal 21 by the terminal fixing jig 42 as shown in FIGS. 15 and 16. It becomes a fixed state.

  Next, the housing holder 47 assembled with the connector housing 11 is positioned on the housing support base 43 as shown in FIG. 7, and each terminal insertion hole 12 of the connector housing 11 and each press-fit portion 21a of the integrated terminal 20 are opposed to each other. Align to. Thereafter, as shown in FIGS. 17 and 18, the pressing block 432 is pressed against the connector housing 11 on the housing support base 43, and the connector housing 11 is fixed at a position facing the connection terminal 21 on the terminal mounting base 41. To do.

  Next, as shown in FIG. 22, the press-fitting operation handle 451 of the press-fitting operation unit 45 is raised in the direction of the arrow Z6, so that the terminal mounting base 41 is slid to the housing support base 43 side and fixed to the terminal mounting base 41. The distal end side of each connecting terminal 21 is press-fitted into the terminal insertion hole 12 of the connector housing 11 fixed to the housing support base 43.

  In this case, as shown in FIGS. 23 and 24, when the first pressing jig 48 mounted on the terminal mounting base 41 comes into contact with the front end of the housing holder 47, the terminal mounting base 41 is moved further. It cannot move to the housing support base 43 side. When the first pressing jig 48 comes into contact with the front end of the housing holder 47, the retaining protrusion 32 of the press-fit portion 21a of each connection terminal 21 is integrated so that it comes into contact with the opening end of the terminal insertion hole 12. Only the front end portion of each press-fitting portion 21 a on the compounding terminal 20 is inserted into the terminal insertion hole 12, and the temporary press-fitting that the integrated terminal 20 is temporarily fixed to the connector housing 11 is completed.

  Next, as shown in FIG. 25, the second pressing jig 49 is removed from the terminal mounting base 41 to release the clamping of the connection terminal 21 by the terminal fixing jig 42, and then the press-fitting operation handle of the press-fitting operation unit 45. Return 451 in the direction of arrow Z7. By returning the press-fitting operation handle 451, the terminal mounting base 41 returns to the arrow Z8 direction.

  When the terminal mounting base 41 is returned to the position before press-fitting, the integrated terminal 20 is temporarily attached to the connector housing 11 fixed to the housing support base 43 as shown in FIG. Next, when the fixing of the connector housing 11 by the pressing block 432 is released and the connector housing 11 is removed together with the housing holder 47 from the housing support base 43, the temporary press-fitting process is completed. 27 and 28 show a state in which each connection terminal 21 of the integrated terminal 20 is temporarily fixed to the connector housing 11.

  In the temporary press-fitting process by the temporary press-fitting device 40 described above, after the terminal insertion holes 12 of the connector housing 11 and the press-fitted portions 21a of the integrated terminal 20 are aligned to face each other, the bent portions 21b are inserted into the terminals. Each press-fitting portion 21a of the integrated terminal 20 is press-fitted into each terminal insertion hole 12 by being pressed and urged toward the hole 12 side.

  Next, the apparatus and jig used in the main press-fitting process will be described, and the features of the main press-fitting process of the present embodiment will be described.

29 and 30 show a main press-fitting device 70 that performs the main press-fitting process.
The main press-fitting device 70 includes a housing support 71, a press-fitting punch 72, and a terminal fixing jig 73 for main press-fitting.

  As shown in FIG. 29, the housing support base 71 supports the connector housing 11 into which the integrated terminal 20 is temporarily press-fitted by the temporary press-fitting device 40 with the back surface of the bent portion 21b facing upward. The housing support base 71 is provided with two projections 711 for positioning the housing holder 47 used in the temporary press-fitting device 40. By positioning the housing holder 47 on the projection 711, a connector on the housing holder 47 is provided. The housing 11 is positioned in a predetermined direction.

  The housing support 71 is attached to the apparatus base 75 so as to be slidable in the horizontal direction (the direction of the arrow X9 in FIG. 29A).

  As shown in FIG. 29B, a housing holder 47 on which the connector housing 11 is mounted is attached to the housing support base 71 while being pulled out from the apparatus base 75 by sliding movement. The connector housing 11 that has undergone the temporary press-fitting process is attached to the housing holder 47.

  As shown in FIG. 29C, the connector housing 11 on the housing support base 71 is positioned at a press-fitting position where the main press-fitting process is performed by returning it to a predetermined position on the housing support base 71.

  As shown in FIG. 30, the press-fitting punch 72 is fixed to a lifting platform 76 that can be moved up and down with respect to the apparatus base 75. The press-fitting punch 72 descends onto the integrated terminal 20 on the connector housing 11 supported by the housing support base 71, so that the back surface of the bent portion 21 b of the integrated terminal 20 directed to the press-fitting punch 72 side. Can be pressed in the terminal press-fitting direction. An arrow Y10 shown in FIG. 30 indicates the ascending / descending direction of the press-fitting punch 72.

  The terminal fixing jig 73 is mounted on the press-fitting punch 72 and clamps and fixes the base end of the press-fitting portion 21a of the integrated terminal 20 with which the press-fitting punch 72 is in contact.

  As shown in FIGS. 30 to 32, the terminal fixing jig 73 is movable in the horizontal direction toward the first pressing jig 78 fixed to the lower end of the press-fitting punch 72 and the first pressing jig 78. The second pressing jig 79 is attached to the press-fitting punch 72.

  As shown in FIGS. 33 and 35, the first pressing jig 78 is connected to the one end of the integrated terminal 20 (FIG. 33 (b)) where the front end surface (the lower surface in FIG. 33 (b)) of the press-fitting punch 72 contacts. In this case, a plurality of first pressing pieces 781 inserted between the plurality of connection terminals 21 arranged in a line in the foremost row on the left side are arranged in a comb shape.

  As shown in FIGS. 34 and 35, the second pressing jig 79 is connected to the other side of the integrated terminal 20 (the lower surface in FIG. 34B) (see FIG. 34B). In b), a plurality of second pressing pieces 791 inserted between a plurality of connection terminals 21 arranged in a line in the foremost row on the right side) are arranged in a comb-like shape.

  The first pressing piece 781 has the same configuration as the first pressing piece 481 of the first pressing jig 48, and the second pressing piece 791 has the same configuration as the second pressing piece 491 of the second pressing jig 49.

  That is, as shown in FIG. 35, the first pressing piece 781 has three first abutment surfaces 81, 82, 83 on one side thereof (the upper side in FIG. 35B) and the first contact pieces thereof. Two guide surfaces 84 and 85 that connect the contact surfaces 81, 82, and 83 in a staircase pattern are provided.

  The three first contact surfaces 81, 82, 83 are, as shown in FIGS. 35A and 35B, the connection terminals in the foremost row on one side of the integrated terminal 20 (left side in FIG. 35A). One side of the first pressing piece 781 (upper side in FIG. 35 (b)) when inserted between the first connecting pieces 21 and one side of the base ends of the three connection terminals 21 arranged in three stages (in FIG. 35 (b)). Abut on the left side).

  The two guide surfaces 84 and 85 connect the adjacent first contact surfaces so that the three first contact surfaces 81, 82, and 83 are arranged in a stepped manner, and a first pressing piece 981 between the connection terminals 21. At the time of insertion, the base end of the connection terminal 21 is guided to the first contact surfaces 81, 82, 83.

  As shown in FIG. 35, when the second pressing piece 791 is inserted between the connecting terminals 21 in the forefront row on the other side of the integrated terminal 20, one side of the first pressing piece 781 (FIG. 35B). Then, on the upper side), there are provided three second contact surfaces 91, 92, 93 and two guide surfaces 94, 95 for connecting these second contact surfaces 91, 92, 93 in a stepped manner. .

  The three second contact surfaces 91, 92, 93 are the bases of the three connection terminals 21 arranged in three stages on the side facing the one side (the lower side in FIG. 35B) of the second pressing piece 791. It abuts on the other side of the end (the right side in FIG. 35B).

  The two guide surfaces 94 and 95 connect adjacent second contact surfaces so that the three second contact surfaces 91, 92, and 93 are arranged in a stepped manner, and a second pressing piece 791 between the connection terminals 21. At the time of insertion, the base end of the connection terminal 21 is guided to the second contact surfaces 91, 92, 93.

  The above-described terminal fixing jig 73 meshes the first pressing piece 781 of the first pressing jig 78 and the second pressing piece 791 of the second pressing jig 79 as shown in FIG. The first contact surfaces 81, 82, 83 of the first pressing jig 78 and the second contact surfaces 91, 92, 93 of the second pressing jig 79 are arranged in three stages of the integrated terminal 20. The base end side of each connecting terminal 21 is clamped and fixed together.

  In the case of the present embodiment, as shown in FIG. 35C, the second pressing jig 79 is laminated (contacted) on the surface of the bent portion 21b facing the terminal insertion hole side. It has.

  The terminal receiving portion 793 prevents the bending portion 21b from being displaced by the pressing force applied from the press-fitting punch 72 to the bending portion 21b for the main press-fitting, and prevents the bending portion 21b from being deformed. .

Next, the procedure of the main press-in process using the main press-in apparatus 70 described above will be described.
First, as shown in FIG. 30, the connector housing 11 in which the integrated press 20 is temporarily fixed after the temporary press-fitting process is set at the final press-fitting position on the device base 75.

  Next, as shown in FIG. 36, the press-fitting punch 72 is lowered onto the integrated terminal 20 temporarily fixed to the connector housing 11, and the front end surface of the press-fitting punch 72 is brought into contact with the back surface of the bent portion 21b. At this time, the three first contact surfaces 81, 82, 83 of the first pressing piece 781 of the first pressing jig 78 fixed to the press-fitting punch 72 are on one side of the first pressing piece 981 (FIG. 35). In FIG. 35 (b), it comes into contact with the surface on one side (left side in FIG. 35 (b)) of the base ends of the three connection terminals 21 arranged in three stages.

  Next, as shown in FIG. 37, the second pressing jig 79 is slid to the first pressing jig 78 side, and the second pressing jig 79 and the first pressing jig 78 are moved as shown in FIG. The base end of the press-fit portion 21a of the integrated terminal 20 is held and fixed.

  Next, with the second presser jig 79 and the first presser jig 78 sandwiching and fixing the base end of the press-fit portion 21a of the integrated terminal 20, the press-fit punch 72 is lowered as shown in FIG. The press-fitting portion 21 a is pushed into the terminal insertion hole 12 of the connector housing 11 by pressing bias from the press-fitting punch 72 to the back surface of the bent portion 21 b.

  Then, when the press-fitting punch 72 is lowered to a predetermined position and the press-fitting portion 21a is press-fitted into the terminal insertion hole 12 into the main press-fitting state, the press-fitting punch 72 is stopped from descending, as shown in FIG. The jig 79 is pulled out from the integrated terminal 20 and the clamping of the press-fit portion 21a by the terminal fixing jig 73 is released.

  When the clamping to the press-fitting portion 21a by the terminal fixing jig 73 is released, the press-fitting punch 72 is raised, and then the housing support base 71 is pulled out of the apparatus base 75 and the connector housing 11 is taken out.

  The main press-fitting process by the main press-fitting device 70 described above includes a pair of slidable base ends of the press-fitting portions 21a on the integrated terminals 20 in a direction perpendicular to the extending direction of the terminal rows of the integrated terminals 20. While being clamped and fixed by the clamping member, one of the pair of clamping members is provided with a terminal receiving portion 793 that is stacked on the surface of the bent portion 21b extending from the base end of each press-fit portion 21a on the surface of the terminal insertion hole 12 side. The terminal receiving portion 793 prevents the bent portion 21b from being deformed by the pressing force applied to the bent portion 21b for the main press-fitting.

  Since the connector housing 11 shown in the present embodiment has six rows of insertion hole rows, when the integrated terminal 20 integrally formed with the connection terminals 21 for three stages of the connector housing 11 is press-fitted, If the two integrated terminals 20 are press-fitted into the connector housing 11 in order, it is possible to obtain a state in which the connection terminals 21 are mounted in the terminal insertion holes 12 for six stages of the connector housing 11 as shown in FIG. .

  In the connector 1 described above, the terminal insertion holes 12 at each stage in the connector housing 11 are arranged so that the positions of the terminal insertion holes 12 do not overlap between different insertion hole arrays 14. For example, the connection terminals 21 for a plurality of stages of three or more stages can be integrally formed by punching a metal plate. Therefore, compared with the conventional connector using the integrated terminal 20 for one stage of the connector housing 11, the number of the integrated terminals 20 to be press-fitted into the connector housing 11 and the press-fitting work are reduced, and the assembly workability of the connector is improved. Can be made.

  Moreover, in the case of the assembly method of the connector 1 demonstrated above, in the temporary press-fit process, since the retaining protrusion 32 of the press-fit portion 21a of the connection terminal 21 does not enter the terminal insertion hole 12 of the connector housing 11, the connection terminal 21 and the terminal The sliding friction with the insertion hole 12 is small. In this press-fitting process, the retaining protrusion 32 of the press-fitting portion 21 a of the connection terminal 21 is pushed into the terminal insertion hole 12, so that sliding friction between the connection terminal 21 and the terminal insertion hole 12 increases. However, the press-fitting of the integrated terminal 20 into the connector housing 11 is performed in two stages, a temporary press-fitting process and a main press-fitting process, so that sliding friction does not increase rapidly during the press-fitting. For this reason, it is possible to prevent the inconvenience of the connection terminal 21 from falling due to a sudden increase in sliding friction during the press-fitting process, and to reliably press-fit each connection terminal 21 of the integrated terminal 20 into the connector housing 11. .

  Further, in the case of the method for assembling the connector 1 described above, the press-fitting operation of the integrated terminal 20 into the connector housing 11 is performed by pressing the bent portion 21 b of the connection terminal 21. It is no longer necessary to project a dedicated shoulder portion in the width direction of the connection terminal 21 for pressing. Therefore, it is easy to reduce the size of the connector by narrowing the arrangement pitch between the connection terminals 21.

  Furthermore, in the case of the assembly method of the connector 1 described above, the connection terminals 21 that are press-fitted in the main press-fitting step are slid by a pair of clamping members that can slide in a direction orthogonal to the extending direction of the terminal row of the integrated terminals 20. At the same time, the terminal receiving portion provided on one of the holding members is laminated on the surface of the bent portion 21b of the connection terminal 21 on the terminal insertion hole 12 side, and the base end of the connection terminal 21 is firmly fixed. It is press-fitted in the state.

  Therefore, even in the main press-fitting process in which sliding friction increases, the connection terminal 21 does not fall down during the press-fitting, and the connection terminal 21 can be reliably press-fitted, thereby improving the assembly workability of the connector.

  Further, in the terminal fixing jig 42 and the terminal fixing jig 73 used in the assembly method of the connector 1 described above, the base ends of the connection terminals 21 formed in a plurality of stages as the integrated terminal 20 are connected to the first end. The first abutment surface provided on the comb-shaped first pressing pieces 481, 781 of the first pressing jigs 48, 78 and the comb-shaped second pressing pieces 491, 791 of the second pressing jigs 49, 79. When the integrated terminals 20 are press-fitted together, the connection terminals 21 formed in a plurality of stages as the integrated terminals 20 can be firmly fixed. In addition, the press-fitting process of the integrated terminal 20 can be facilitated, and the assembly workability of the connector can be improved.

  In addition, the connector of this invention, the assembly method of this connector, and the jig | tool for terminal fixation are not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

  For example, the integrated terminal is not limited to a structure in which the connection terminals are arranged in three stages, but may be a structure in which connection terminals for four or more stages on the connector housing side are integrated. In this case, the terminal fixing jig can also be configured to collectively hold four or more connection terminals.

DESCRIPTION OF SYMBOLS 1 Connector 11 Connector housing 12 Terminal insertion hole 20 Integrated terminal 21 Connection terminal 21a Press-fit part 21b Bending part 22 Connection part 32 Retaining protrusion 40 Temporary press-fit apparatus 41 Terminal mounting base 42 Terminal fixing jig 43 Housing support base 48 1 presser jig 49 second presser jig 51, 52, 53 first contact surface 61, 62, 63 second contact surface 54, 55 guide slope 64, 65 guide slope 70 main press fitting device 71 housing support base 72 press fit Punch 73 Terminal fixing jig 78 First pressing jig 79 Second pressing jig 412 Bending portion contact surface 481 First pressing piece 491 Second pressing piece 781 First pressing piece 791 Second pressing piece

Claims (4)

An insertion hole row in which a plurality of terminal insertion holes into which the connection terminals are press-fitted are arranged in a row, a connector housing formed in a plurality of stages in a direction orthogonal to the extending direction of the row, and the plurality of terminal insertion holes by press-fitting A plurality of connecting terminals to be mounted,
The terminal insertion holes of each stage are arranged so that the positions of the terminal insertion holes do not overlap between different insertion hole rows,
The plurality of connection terminals include a rod-like terminal main body inserted into the terminal insertion hole and a retaining protrusion protruding in the middle of the terminal main body, and a press-fit portion press-fitted into the terminal insertion hole, A bent portion extending in a direction orthogonal to the insertion hole row from a base end of the press-fit portion, a connecting portion that connects the bent portions of the plurality of connecting terminals and integrates the plurality of connecting terminals; In a connector that is collectively press-fitted into the connector housing as an integrated terminal in which a plurality of connection terminals corresponding to a plurality of rows of insertion holes are integrated,
A connector assembly method for press-fitting and mounting the integrated terminal into a plurality of terminal insertion holes of the connector housing,
The operation of press-fitting each press-fitting part of the integrated terminal into each terminal insertion hole,
To the extent that the press-fit portion and the retaining projection of the contacts to the open end of the terminal insertion hole, insert only the tip end portion of each press-fit portion on the integrated terminal to the terminal insertion hole, wherein the integrated terminal A temporary press-fitting step for temporarily fixing the connector housing to the connector housing;
A main press-fitting step in which the integrated terminal is pushed into the terminal insertion hole side from the temporarily fixed state so that each press-fitting portion is press-fitted into each terminal insertion hole; and
The connector assembling method characterized by carrying out in two steps. In the temporary press-fitting step, after aligning each terminal insertion hole of the connector housing and each press-fitting portion of the integrated terminal in an opposing state, the bent portion is pressed and urged toward the terminal insertion hole. 2. The connector assembling method according to claim 1 , wherein each press-fitting portion of the integrated terminal is press-fitted into each terminal insertion hole. In the main press-fitting step, the base end of each press-fitting portion is clamped and fixed by a pair of clamping members slidable in a direction orthogonal to the extending direction of the terminal row of the integrated terminals, and one of the pair of clamping members Comprises a terminal receiving portion that is laminated on the surface of the bent portion extending from the base end of each press-fitting portion on the terminal insertion hole side,
3. The connector assembling method according to claim 1 , wherein the terminal receiving portion prevents the bent portion from being deformed by a pressing force applied to the bent portion for the press fitting. Insertion hole rows in which a plurality of terminal insertion holes into which the connection terminals are press-fitted are arranged in a row are formed in a plurality of stages in a direction orthogonal to the extending direction of the row, and the positions of the terminal insertion holes are different between different insertion hole rows An integrated terminal in which a plurality of connection terminals are integrally formed corresponding to the arrangement of the plurality of stages of terminal insertion holes is collectively press-fitted into a connector housing in which the terminal insertion holes of each stage are arranged so as not to overlap. A terminal fixing jig that clamps and fixes the base end side of each connection terminal,
A first pressing jig in which a plurality of first pressing pieces inserted between a plurality of connecting terminals arranged in a row in the front row on one side of the integrated terminal are arranged in a comb-teeth shape; A second pressing jig in which a plurality of second pressing pieces inserted between a plurality of connection terminals arranged in a line in the front row are arranged in a comb-teeth shape,
When the first pressing piece is inserted between the connecting terminals in the foremost row on one side of the integrated terminal, one side of the base ends of the plurality of connecting terminals arranged in a plurality of stages on one side of the first pressing piece A plurality of first abutting surfaces that abut against the first surface and the adjacent first abutting surfaces so that the plurality of first abutting surfaces are arranged in a stepped manner, and when inserted between the connection terminals, A first guide surface for guiding a base end of a connection terminal to the first contact surface,
The second pressing piece is a base of a plurality of connecting terminals arranged in a plurality of stages on the side facing the one side of the first pressing piece when inserted between the connecting terminals in the foremost row on the other side of the integrated terminal. A plurality of second contact surfaces that contact the other surface of the end and the second contact surfaces adjacent to each other so that the plurality of second contact surfaces are arranged in a stepped manner, and to the connection terminals A second guide surface that guides the base end of the connection terminal to the second abutment surface when inserted,
A terminal fixing jig, wherein a base end side of the integrated terminal is sandwiched and fixed by a first contact surface of the first pressing jig and a second contact surface of the second pressing jig.

Images