JP4785066B2 - Terminal mounting jig and method for manufacturing terminal assembly - Google Patents

Description

  The present invention mainly relates to a mounting jig for facilitating an operation of manufacturing a terminal assembly by fitting and combining a plurality of terminals.

  For example, in a vehicle such as an automobile, a ground wire of an electronic device to be mounted is connected to a chassis. At this time, a configuration may be adopted in which a plurality of terminals attached to the ground wire of each electronic device are collectively connected to the chassis by bolts or the like. By doing so, it is possible to consolidate the connection points of a plurality of ground wires in one place, which is advantageous in terms of efficiency of vehicle manufacturing work and space saving.

Patent document 1 discloses connecting a some terminal to a vehicle body collectively via the joint apparatus of the following structures. In other words, this joint device has a terminal mounting base that protrudes from the bottom wall of the insulating case and has a bolt shaft protruding through the bolt shaft and biased to the upper end of the spring. The bolt shaft portion is inserted into the through hole of the pedestal, and a plurality of wire insertion ports are provided in the side wall of the insulating case to insert the wires at a required interval, and a terminal insertion port continuous to the wire insertion ports is provided. Then, an electrical contact portion with a mounting hole of the crimp terminal of the wire terminal is inserted from the terminal insertion port between the upper wall of the insulating case and the terminal mounting base, and the mounting hole of the terminal is connected to the shaft portion of the bolt. The electric wires are inserted into the electric wire insertion port, and the electric contact portions of the crimp terminals of the plural electric wire terminals are overlapped on the terminal mounting table and tightened with nuts.
JP-A-11-55823

  The configuration of the above-mentioned Patent Document 1 requires one joint device for each ground connection point, which increases the number of parts and the manufacturing cost. In order to solve this point, the terminal itself is provided with a fitting portion that can be fitted with another terminal, and a plurality of terminals can be fitted by an operation of rotating the terminal in a state where the terminal is overlapped with the other terminal. A so-called combination terminal is also known.

  From the viewpoint of work efficiency, the ground connection using the combination terminal is required to be able to manufacture a terminal assembly by easily and reliably fitting a plurality of terminals. For this purpose, it is conceivable to use an attachment jig provided with a shaft portion for insertion into an attachment hole provided in the terminal. In this mounting jig, the outer diameter of the shaft portion and the inner diameter of the mounting hole are set to be substantially the same, and the terminal is rotated around the shaft portion. If it does so, since it can rotate relatively, without the center axis | shaft of terminals mutually blurring, it is thought that the fitting operation | work of terminals can be performed smoothly.

  However, when the terminal assembly is tilted even slightly when the terminal assembly is removed from the shaft after the terminals are fitted together, the edge of the terminal mounting hole becomes the outer peripheral surface of the shaft. As a result, the terminal does not easily come out of the shaft, and the work efficiency may be reduced. Further, if an operator applies force to the terminal assembly and pulls it out from the shaft portion in this state, the terminal may be deformed or damaged.

  The present invention has been made in view of the above circumstances, and its main object is to provide a mounting jig that can easily fit terminals together and easily remove the terminals after fitting. There is.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

According to the 1st viewpoint of this invention, the jig | tool for attachment of the following structures is provided. That is, a mounting jig for fitting and mounting a plurality of terminals having mounting holes relative to each other includes a casing and a shaft portion that is slidably supported on the casing. The shaft portion is configured to be able to be inserted into the mounting hole of the terminal. The shaft portion is configured to be displaceable between a protruding position protruding from a terminal set surface in the casing and a retracted position pushed into the casing.

  With this configuration, the terminal can be easily detached from the shaft by setting the shaft to the retracted position. Therefore, the efficiency of the terminal fitting operation is improved, and the deformation and breakage of the terminal due to excessive drawing of the terminal can be prevented.

  The terminal mounting jig is preferably configured as follows. That is, the shaft portion is provided with a cylindrical holding portion, and the outer diameter of the holding portion is configured to be substantially equal to the inner diameter of the mounting hole formed in a circular shape. And when the said shaft part exists in the said protrusion position, the said holding part faces the said attachment hole. On the other hand, when the shaft portion is in the retracted position, the facing of the holding portion and the mounting hole is released.

  With this configuration, since the outer diameter of the holding portion is substantially equal to the inner diameter of the mounting hole of the terminal, when the shaft portion is in the protruding position, the terminal can be rotated while keeping the center position of the mounting hole constant. Thereby, terminals can be fitted smoothly. On the other hand, the terminal can be smoothly removed by displacing the shaft portion to the retracted position.

  In the terminal mounting jig, the shaft portion includes a small-diameter portion having an outer diameter smaller than that of the holding portion, and when the shaft portion is in the retracted position, the small-diameter portion faces the mounting hole. It is preferable to do.

  With this configuration, when the shaft portion is in the retracted position, a large gap is formed between the terminal mounting hole and the shaft portion. Therefore, the terminal can be easily removed from the mounting jig.

  The terminal mounting jig is preferably configured such that the outer diameter of the tip of the shaft portion is substantially equal to the inner diameter of the mounting hole.

  With this configuration, the operator can easily confirm whether or not an appropriate terminal is to be assembled by applying the attachment hole to the tip portion before the terminal is inserted into the holding portion.

  In the terminal mounting jig, the tip surface of the shaft portion is preferably a flat surface or a gently curved surface.

  With this configuration, it is possible to reduce the burden on the finger when the tip portion of the shaft portion is pushed and displaced. Therefore, even when a large number of terminals are engaged, the burden on the operator can be reduced and the efficiency can be improved.

  The terminal mounting jig preferably includes a return member for returning the shaft portion to the protruding position.

  With this configuration, after removing the fitted terminal from the shaft portion at the retracted position, the shaft portion can be returned to the protruding position in preparation for the next fitting operation. Moreover, since the return of the shaft portion can be realized with a simple configuration having only the return member, the manufacturing cost of the mounting jig can be reduced.

  The terminal mounting jig preferably includes a fixing mechanism for fixing the shaft portion at the retracted position.

  With this configuration, the terminal can be removed while the shaft portion is held at the retracted position, so that the terminal can be removed smoothly and easily.

The terminal mounting jig preferably has the following configuration. That is, the fixing mechanism is a switching mechanism that switches between the protruding position and the retracted position by pressing the tip of the shaft portion . An edge guide portion as a restricting portion that restricts rotation of the terminal in a state of being inserted through the shaft portion is formed so as to protrude from the set surface. The edge guide portion is configured to surround the shaft portion and has a shape that substantially follows the outline of the edge portion of the terminal that is initially set on the mounting jig.

With this configuration, the position of the shaft portion can be switched between the protruding position and the retracted position with a simple push operation. Therefore, the efficiency of the terminal fitting operation is further improved. Further, by restricting one rotation when fitting the two terminals, the terminals can be smoothly fitted to each other, and work efficiency is increased.

  The terminal mounting jig preferably has the following configuration. That is, an operating member for displacing the shaft portion to the retracted position is provided, and the operating member includes a protruding portion that protrudes from the casing. Then, by pushing this projecting portion, the shaft portion is displaced to the retracted position.

  With this configuration, it is possible to remove the terminal inserted through the shaft while pushing the protrusion. Therefore, the terminal can be removed more easily.

  It is preferable that the terminal mounting jig is configured such that when the operation member is operated, the tip of the shaft portion can be retracted from the terminal setting surface of the casing.

  With this configuration, the shaft portion can be completely removed from the terminal mounting hole. Therefore, the operation of removing the terminal from the mounting jig is further facilitated.

According to the second aspect of the present invention, the following method for manufacturing a terminal assembly is provided. That is, the terminal assembly is configured such that a plurality of terminals having attachment holes are fitted to each other by relatively rotating . And this terminal assembly manufacturing method sets the terminal in the mounting jig by inserting the shaft part into the terminal mounting hole with the shaft part of the terminal mounting jig in the protruding position. A first step, a second step in which the shaft portion is inserted into a mounting hole of another terminal, and the shaft portion is rotated around the shaft portion to fit the terminals, and the shaft portion is in a retracted position. And a third step of removing the fitted terminal assembly from the mounting jig. As the mounting jig, the terminal mounting jig is used.

  By this method, the terminal assembly can be easily removed from the shaft portion by setting the shaft portion of the mounting jig to the retracted position in the third step. Therefore, the efficiency of the terminal fitting operation can be improved, and the deformation and breakage of the terminal due to excessive drawing of the terminal assembly can be prevented.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view showing individual terminals in the combination terminal. FIG. 2 is an external perspective view of the mounting jig according to the first embodiment of the present invention.

  First, a combination LA terminal (round terminal) assembled to each other using the mounting jig of the present embodiment will be described with reference to FIG. FIG. 1 shows the individual terminals of the combined LA terminal, namely the Z-type terminal 27 and the A-type terminal 28.

  Each of the two types of terminals 27 and 28 is formed by processing a conductive metal plate, and includes a substantially circular contact portion 21 and a barrel portion 22 formed integrally with the contact portion 21. . A core wire portion of a ground wire (electric wire) 30 is fixed to the barrel portion 22 by crimping. A circular attachment hole 23 is formed in the contact portion 21 in a penetrating manner, and a screw shaft of an unillustrated attachment screw can be inserted into the attachment hole 23.

  The inner diameter of the mounting hole 23 is set equal between the Z-type terminal 27 and the A-type terminal 28. This inner diameter is set to various sizes according to the standard set by the terminal manufacturer. In this embodiment, the size of the inner diameter is about several millimeters.

  Fitting portions 25 and 25 are provided on the edge of the contact portion 21. The fitting portions 25 and 25 are arranged in a pair with the center of the mounting hole 23 interposed therebetween. Each fitting portion 25 is formed by bending the end portion of the contact portion 21 so as to be folded back. The fitting portion 25 can be fitted so as to sandwich the contact portion 21 of another LA terminal.

  In both the Z-type terminal 27 and the A-type terminal 28, an engagement protrusion 24 is integrally formed on the contact portion 21. On the other hand, in the A-type terminal 28, a through-hole engagement hole 29 is formed in the contact portion 21, and the engagement hole 29 is configured to be engageable with the engagement protrusion 24 of the Z-type terminal 27. . Further, in the Z-type terminal 27, an anti-rotation portion 31 is integrally formed with the contact portion 21. With this configuration, when the terminal is screwed to the vehicle chassis with the mounting screw, the rotation preventing portion 31 can prevent the terminal from rotating.

  Next, the configuration of the mounting jig 11 according to the first embodiment will be described with reference to FIG. FIG. 2 is an external perspective view of the mounting jig 11 of the first embodiment. As shown in FIG. 2, the mounting jig 11 includes a casing 12 and a shaft portion 13 that can be inserted through the mounting hole 23 to hold the LA terminal.

  The casing 12 is configured by adhering an upper half 18 and a lower half 19 formed in a block shape to each other. A penetrating insertion hole 44 is provided at the center of the upper surface of the upper half portion 18, and the shaft portion 13 is slidably inserted into the insertion hole. The shaft portion 13 is disposed so as to protrude upward from the upper surface of the casing 12.

  The shaft portion 13 will be described. As shown in FIG. 2, the shaft portion 13 is formed by processing a metal, and a tip portion 40, a small diameter portion 41, and a holding portion 42 are integrally formed. The holding portion 42 is formed in a columnar shape, and the outer diameter thereof is substantially equal to the inner diameter of the mounting hole 23 of the LA terminal (strictly speaking, the mounting hole 23 is different from the holding portion 42). The outer diameter of the holding portion 42 is slightly smaller than the inner diameter of the mounting hole 23 in order to enable the insertion).

  The distal end portion 40 is formed in a disc shape, and the outer diameter thereof is configured to be equal to the outer diameter of the holding portion 42. Moreover, the upper surface of this front-end | tip part 40 is comprised flat. The small-diameter portion 41 is formed in a columnar shape, and its outer diameter is configured to be smaller than the tip portion 40 and the holding portion 42.

  As indicated by a broken line in FIG. 2, a circular hole-like accommodation hole 43 is formed on the upper surface of the lower half 19 of the casing 12. The shaft portion 13 and the urging spring (return member) 47 are accommodated in the accommodation hole 43. A large-diameter spring receiving portion 48 is formed in the middle portion of the shaft portion 13, and the biasing spring 47 is disposed between the bottom portion of the receiving hole 43 and the spring receiving portion 48.

  With this configuration, the shaft portion 13 is slidable along the inner walls of the accommodation hole 43 and the insertion hole 44. Thereby, the shaft portion 13 is pushed in from the protruding position (the position in FIG. 2) in a state where the holding portion 42 protrudes from the casing 12, and the holding portion 42 enters the casing 12. The shaft portion 13 can be displaced in the longitudinal direction between a certain retracted position.

  On the upper surface of the upper half 18 (casing 12), a flat placement surface (set surface) 45 for placing the LA terminal is formed around the shaft portion 13. Further, an edge guide portion 15 is formed on the upper surface of the upper half portion 18 so as to protrude upward from the placement surface 45. The edge guide portion 15 is disposed so as to surround the periphery of the shaft portion 13 by a substantially half circumference.

  The side wall of the edge guide portion 15 that faces the shaft portion 13 is formed in a shape that substantially follows the contour of the edge portion of the Z-type terminal 27 described in FIG. Moreover, the recessed part 17 is formed in the said mounting surface 45 in the position corresponding to the rotation prevention part 31 of the Z-type terminal 27 of FIG. Further, the restricting pin 16 protrudes from the mounting surface 45 at a position slightly spaced from the side wall of the edge guide portion 15. The restriction pin 16 is fixed to the upper half 18 by press fitting, and is configured to protrude upward from the mounting surface 45 described above. The edge guide portion 15 and the restriction pin 16 described above constitute a restriction portion that restricts the rotation of the Z-type terminal 27.

  Between the shaft portion 13 and the accommodation hole 43, a switching mechanism that switches between a protruding position and a retracted position by pressing a tip portion of the shaft portion, that is, a so-called push push mechanism 10 is provided as a fixing mechanism. In FIG. 2, the push-push mechanism 10 is schematically indicated by a chain line, but as a specific configuration, for example, a mechanism using a known heart cam can be considered.

  With this configuration, if the operator manually pushes down the tip 40 from above when the shaft 13 is in the protruding position, the shaft 13 moves to the retracted position, and in this state, the push-push mechanism 10 fixes (locks). ) When the tip portion 40 of the shaft portion 13 in the retracted position is again pushed down from above by hand, the fixation is released. When the pushing force is released, the shaft portion 13 is moved to the protruding position by the biasing force of the biasing spring 47. Return to.

  Next, an operation of fitting and assembling the Z-type terminal 27 and the A-type terminal 28 using the mounting jig 11 having the above configuration will be described with reference to FIGS. In this assembling operation, first, the Z-type terminal 27 is set on the mounting jig 11. Specifically, the operator grasps the Z-type terminal 27 with his / her finger and inserts the shaft portion 13 from the distal end portion 40 into the mounting hole 23 as shown in FIG.

  The outer diameter of the distal end portion 40 is set equal to the outer diameter of the holding portion 42 and a slight gap (for example, a gap of about 0.1 mm) between the Z-type terminal 27 and the mounting hole 23. Is set to produce. Therefore, when an operator tries to assemble a Z-type terminal 27 having a different size (standard) from the standard in the LA terminal used in the mating work, the different standard is mixed in. The attachment hole 23 does not enter the distal end portion 40 or a large gap is generated between the distal end portion 40 and the attachment hole 23. Therefore, at the initial stage of the insertion operation into the shaft portion 13, the operator simply aligns the mounting hole 23 of the Z-type terminal 27 with the tip portion 40 as shown by a chain line in FIG. It can be easily confirmed whether or not.

  The operator inserts the shaft portion 13 so as to slide the Z-type terminal 27 downward, and places the holding portion 42 on the mounting surface 45 while inserting the holding portion 42 through the mounting hole 23. At this time, the barrel portion 22 of the Z-type terminal 27 is disposed between the edge guide portion 15 and the restriction pin 16, and the rotation preventing portion 31 is inserted into the concave portion 17.

  As described above, the outer diameter of the holding portion 42 of the shaft portion 13 is configured to be substantially equal to the inner diameter of the mounting hole 23 of the Z-type terminal 27. Accordingly, the holding portion 42 can appropriately position the Z-type terminal 27 so that the center position of the mounting hole 23 does not move, and can be set on the mounting jig 11 without rattling. Further, the barrel portion 22 of the Z-type terminal 27 is disposed so as to be sandwiched between the edge guide portion 15 and the restriction pin 16. Accordingly, the Z-type terminal 27 is restricted from rotating from the state shown in FIG.

  Next, the A-type terminal 28 is fitted into the set Z-type terminal 27. Specifically, as shown in FIG. 4, the shaft portion 13 is inserted from the tip portion 40 into the mounting hole 23 of the A-type terminal 28. As for the A-type terminal 28, similarly to the Z-type terminal 27, whether or not the terminal is of a standard that matches the outer diameter of the shaft portion 13 by matching the mounting hole 23 with the tip portion 40. Can be easily confirmed.

  The operator slides the A-type terminal 28 downward and inserts the holding portion 42 into the mounting hole 23. The direction of the A-type terminal 28 at this time is such that the barrel portion 22 of the Z-type terminal 27 and the barrel portion 22 of the A-type terminal 28 that are already set are considerably large, as shown by the chain line in FIG. The direction should be at an angle. Thereafter, in a state where the A-type terminal 28 is placed on the Z-type terminal 27, the direction of the barrel portion 22 of the A-type terminal 28 is set in the direction of the thick arrow so that the direction of the barrel portion 22 of the Z-type terminal 27 is close. Rotate. As a result, the peripheral edge of the contact portion 21 of the A-type terminal 28 is fitted into the fitting portion 25 of the Z-type terminal 27.

  Since the rotation of the Z-type terminal 27 is regulated by the edge guide portion 15 and the regulation pin 16 as described above, the Z-type terminal 27 is prevented from being rotated by the rotation of the A-type terminal 28. Therefore, the A-type terminal 28 can be securely fitted to the Z-type terminal 27. The mounting holes 23 of the Z-type terminal 27 and the A-type terminal 28 are both held by the holding portion 42 of the shaft portion 13. Accordingly, since the A-type terminal 28 can be rotated while the centers of the mounting holes 23 of the Z-type terminal 27 and the A-type terminal 28 are aligned with each other, the A-type terminal 28 can be smoothly fitted into the fitting portion 25 of the Z-type terminal 27. Can be engaged.

  When the A-type terminal 28 is rotated by a predetermined angle, the engagement protrusion 24 of the Z-type terminal 27 shown in FIG. 1 is fitted into the engagement hole 29 of the A-type terminal 28 and is prevented from coming off. Thus, the fitting operation of one A-type terminal 28 to the Z-type terminal 27 is completed. Although FIG. 4 shows a state in which the two terminals 27 and 28 are fitted, more A-type terminals can be fitted by repeating the same procedure. FIG. 5 shows an LA terminal assembly in which three A-type terminals 28, 28, 28 are fitted to one Z-type terminal 27 in the mounting jig 11 and a total of four LA terminals are combined with each other. ing. Similarly, a B-type terminal having a fitting portion, an engagement protrusion, and an engagement hole that are different from the A-type terminal 28 are also fitted in the mounting jig 11, and the Z-type terminal 27, A-type terminal 28, Can be combined with each other.

  Next, removal of the fitted LA terminal assembly will be described with reference to FIGS. FIG. 5 shows an LA terminal assembly in which a Z-type terminal 27 is arranged in the lowermost layer using the mounting jig 11 and three A-type terminals 28 are laminated on the upper side. In the state shown in FIG. 5, the operator pushes the distal end portion 40 of the shaft portion 13 downward with a finger as indicated by an arrow. In addition, since the upper surface of the distal end portion 40 (the distal end surface of the shaft portion 13) is configured to be a flat surface, it is possible to reduce the burden on the operator's finger when the shaft portion 13 is pushed with the finger. .

  By this pushing operation, the shaft portion 13 is moved from the protruding position against the biasing spring 47, and when the shaft portion 13 is displaced to the retracted position, the shaft portion 13 is fixed so as not to move by the push push mechanism 10 described above. FIG. 6 shows this state. In this state, the operator holds the LA terminal assembly with his / her finger and lifts it to remove it from the shaft portion 13.

  In the retracted position of FIG. 6, all or most of the holding portion 42 of the shaft portion 13 is retracted inside the casing 12 and protrudes upward from the mounting surface 45. Only the small-diameter portion 41 and the tip portion 40 are provided. That is, when the shaft portion 13 is displaced to the retracted position, the small-diameter portion 41 instead of the holding portion 42 faces the attachment hole 23 of the LA terminal, and between the small-diameter portion 41 and the attachment hole 23, A large gap occurs. Therefore, even when the LA terminal is slightly inclined when the LA terminal is lifted and removed, the attachment hole 23 is prevented from being caught by the outer peripheral surface of the shaft portion 13 and being caught. Therefore, the LA terminal assembly can be smoothly removed from the mounting jig 11 while preventing the LA terminal from being deformed and damaged.

  After removing the LA terminal assembly, the operator pushes the tip portion 40 of the shaft portion 13 downward again by hand. Then, the fixing at the retracted position by the push-push mechanism 10 is released, and the shaft portion 13 returns to the original protruding position by the biasing spring 47 (FIG. 2). In this state, a new LA terminal can be assembled.

  As described above, the mounting jig 11 of the present embodiment includes the casing 12 and the shaft portion 13 that is slidably supported by the casing 12. The shaft portion 13 is configured to be able to be inserted into the mounting hole 23 of the LA terminal. The shaft portion 13 protrudes from the set surface of the LA terminal in the casing 12 (FIG. 5 and the like) and the protruding position. It is comprised so that a displacement is possible between the retraction position (FIG. 6) pushed into the casing 12 from.

  With this configuration, the LA terminal assembly can be easily removed by displacing the shaft portion 13 to the retracted position as shown in FIG. Therefore, the efficiency of the terminal fitting operation can be improved, and the deformation and breakage of the terminal due to excessive drawing of the terminal assembly can be prevented.

  Further, in the mounting jig 11, the shaft portion 13 includes a cylindrical holding portion 42, and the outer diameter of the holding portion 42 is substantially equal to the inner diameter of the mounting hole 23 formed in a circular shape. It is configured. When the shaft portion 13 is in the protruding position, the holding portion 42 is configured to face the mounting hole 23 as shown in FIG.

  With this configuration, since the outer diameter of the holding portion 42 is substantially equal to the inner diameter of the attachment hole 23 of the LA terminal, the LA terminal can be rotated while keeping the center position of the attachment hole 23 constant. Thereby, terminals can be fitted smoothly.

  In the mounting jig 11, the shaft portion 13 includes a small diameter portion 41 having an outer diameter smaller than that of the holding portion 42. And as shown in FIG. 6, when the axial part 13 exists in the said retracted position, the said small diameter part 41 is comprised so that the attachment hole 23 may be faced.

  With this configuration, as shown in FIG. 6, when the shaft portion 13 is in the retracted position, a large gap is formed between the LA terminal mounting hole 23 and the shaft portion 13. Therefore, the terminal assembly can be easily detached from the mounting jig 11.

  Further, in the mounting jig 11, the shaft portion 13 includes a tip portion 40 at the tip in the protruding direction, and the outer diameter of the tip portion 40 is configured to be substantially equal to the inner diameter of the mounting hole 23.

  With this configuration, it is possible to easily confirm whether or not an appropriate LA terminal is to be assembled by aligning the mounting hole 23 with the distal end portion 40 as shown by the chain line in FIG. 3 before inserting the LA terminal into the holding portion 42. can do.

  In the mounting jig 11, the upper surface of the tip portion 40 of the shaft portion 13 is a flat surface.

  With this configuration, when the distal end portion 40 of the shaft portion 13 is pushed by hand and the shaft portion 13 is displaced, the burden on the operator's finger can be reduced even when a large number of terminals are fitted. Efficiency can be increased.

  The mounting jig 11 includes an urging spring 47 for returning the shaft portion 13 to the protruding position.

  Thereby, after removing the LA terminal assembly from the shaft portion 13 in the retracted position, the shaft portion 13 can be returned to the protruding position in preparation for the next fitting operation. In addition, since the urging spring 47 is simply provided, the manufacturing cost of the mounting jig 11 can be reduced.

  The mounting jig 11 includes a fixing mechanism that fixes the shaft portion 13 at the retracted position.

  With this configuration, the LA terminal assembly can be removed smoothly and easily by fixing the shaft portion 13 at the retracted position.

  Further, in the mounting jig 11, the fixing mechanism is configured as a so-called push-push mechanism 10 that switches between a protruding position and a retracted position by pressing the distal end portion 40 of the shaft portion 13.

  With this configuration, the position of the shaft portion 13 can be switched between the protruding position and the retracted position with a simple push operation. Therefore, the efficiency of the terminal fitting operation is further improved.

  The mounting jig 11 includes an edge guide portion 15 and a regulation pin 16 that regulate the rotation of the LA terminal (the Z-type terminal 27) inserted into the shaft portion 13.

  With this configuration, for example, as shown in FIG. 4, when the A-type terminal 28 is rotated and fitted to the Z-type terminal 27, the Z-type terminal 27 can be restricted from rotating. Therefore, the A-type terminal 28 and the Z-type terminal 27 can be smoothly fitted, and the working efficiency is increased.

  In the above embodiment, the LA terminal assembly is manufactured by the following method. That is, with the shaft portion 13 included in the terminal mounting jig 11 in the protruding position, the shaft portion 13 is inserted into the mounting hole 23 of the Z-type terminal 27 to set the terminal in the mounting jig 11. (Step of FIG. 3). Next, the shaft portion 13 is inserted into the mounting hole 23 of the A-type terminal 28 and rotated around the shaft portion 13 to fit the Z-type terminal 27 and the A-type terminal 28 (step of FIG. 4). . Then, the LA terminal assembly is removed from the mounting jig 11 with the shaft portion 13 in the retracted position (step of FIG. 6).

  With this method, as shown in FIG. 6, the LA terminal assembly can be easily detached from the mounting jig 11 with the shaft portion 13 being displaced to the retracted position. Therefore, the efficiency of the LA terminal fitting operation is improved, and deformation or breakage of the terminal due to excessive drawing of the terminal assembly can be prevented.

  Next, the mounting jig of the second embodiment will be described with reference to FIG. FIG. 7 is a perspective view showing a mounting jig according to the second embodiment. In the second embodiment, members that are the same as or similar to those in the first embodiment may be denoted by the same reference numerals in the drawings, and description thereof may be omitted.

  The mounting jig 49 according to the second embodiment includes a casing 36 and a shaft portion 33 provided on the casing 36 so as to be slidable. Unlike the shaft portion 13 of the first embodiment, the shaft portion 33 is not provided with the small diameter portion 41 or the tip portion 40.

  In the upper half 37 of the casing 36, a second insertion hole 39 is formed in the vicinity of the insertion hole 44 through which the shaft portion 33 is inserted. The second insertion hole 39 is provided so as to penetrate the edge guide portion 15 provided in the upper half portion 37 in the vertical direction. An operation rod 61 is slidably inserted into the second insertion hole 39. The upper end (one end) of the operation rod 61 protrudes from the upper surface of the edge guide portion 15 (casing 36). A transmission member 63 for transmitting an operation force applied to the operation rod 61 to the shaft portion 33 is fixed to the lower end (the other end) of the operation rod 61.

  The lower half 38 of the casing 36 is formed with a housing hole 62 having a substantially square hole shape, and is provided with a second housing hole 64 for housing the operation rod 61. The second accommodation hole 64 is formed at a position corresponding to the second insertion hole 39. The accommodation hole 62 and the second accommodation hole 64 are communicated with each other by a vertical groove. The operation rod 61 has a biasing spring (not shown) disposed in the second accommodation hole 64. Thereby, when the operating rod 61 is pushed, the operating rod 61 does not move obliquely downward, so that the vertical motion of the operating rod 61 is smooth.

  The transmission member 63 is disposed across the accommodation hole 62 and the second accommodation hole 64. The transmission member 63 includes a bifurcated portion in the accommodation hole 62, and the shaft portion 33 is disposed inside the bifurcated portion. The bifurcated portion is disposed on the upper side of the spring receiving portion 48 included in the shaft portion 33.

  With the above configuration, the operator pushes down the upward projecting portion of the operating rod 61 with a finger while the fitted LA terminal assembly is attached to the holding portion 42 of the shaft portion 33. Then, the transmission member 63 that descends together with the operation rod 61 pushes down the spring receiving portion 48, so that the shaft portion 33 is displaced from the protruding position to the retracted position.

  In the present embodiment, when the operation rod 61 is pushed down to some extent, the tip of the shaft portion 33 moves to a position lower than the placement surface 45 described above. Accordingly, not only the holding portion 42 does not face the mounting hole 23 of the LA terminal assembly, but also the shaft portion 33 is completely removed from the mounting hole 23. Thereby, the LA terminal assembly can be removed from the mounting jig 49 more easily than in the case of the first embodiment. Since the LA terminal can be removed very easily as described above, the fixing mechanism for fixing the shaft portion 33 at the retracted position is omitted in this embodiment.

  After removing the LA terminal assembly as described above, the operator releases the pressing force applied to the operation rod 61. Then, the shaft portion 33 is returned to the protruding position by the urging force of the urging spring of the operation rod 61, and the state before the operation rod 61 is pushed back is returned. The biasing spring 47 can be operated by the biasing spring 47 even if the biasing spring (returning member) below the operation rod 61 is not disposed.

  As described above, the mounting jig 49 of the present embodiment includes the operation rod 61 for displacing the shaft portion 33 to the retracted position. The operation rod 61 is provided with a protruding portion that protrudes upward from the casing 36, and the shaft portion 33 is configured to be displaced to the retracted position by pushing the protruding portion.

  With this configuration, the shaft portion 33 can be displaced to the retracted position by a simple operation of the operation rod 61, and the LA terminal inserted through the shaft portion 33 can be easily removed.

  Further, the mounting jig 49 is configured such that when the shaft portion 33 is in the retracted position, the tip portion of the shaft portion 33 is positioned below (withdrawing side) the placement surface 45 of the LA terminal. Has been.

  With this configuration, the shaft portion 33 can be completely removed from the attachment hole 23 of the LA terminal. Therefore, the operation of removing the LA terminal assembly after the fitting operation from the mounting jig 49 is further facilitated.

  Although the preferred embodiment of the present invention has been described above, the above configuration can be changed as follows, for example.

  The LA terminal described in the first embodiment and the second embodiment has a configuration in which two types of LA terminals of Z-type and A-type are overlapped and combined. However, the mounting jig can be applied to various terminal fitting operations such as combining a single type of LA terminal or combining three or more types. Further, the number of terminals constituting the LA terminal assembly can be arbitrarily changed.

  In the first embodiment, the fixing mechanism can employ a mechanism other than the push-push mechanism. For example, a configuration in which an appropriate member is engaged inside the casing 12 and fixed so that the shaft portion 13 does not return from the retracted position by appropriately rotating the shaft portion 13 in a state where the shaft portion 13 is pushed downward is conceivable.

  In the first embodiment, the tip of the shaft portion 13 can be configured to have a gently curved surface (for example, a spherical shape) instead of a flat surface. In the second embodiment, the shaft portion 33 and the operation rod 61 can be integrally formed.

  In the first and second embodiments, switching between the protruding position and the retracted position of the shaft portion can be changed to be performed by, for example, a solenoid instead of being performed manually.

  The LA terminal assembly manufactured in the above embodiment is not limited to ground connection but can be used for various other purposes.

The perspective view which shows each LA terminal fitted mutually with the jig | tool for attachment. The perspective view of the jig for attachment of a 1st embodiment of the present invention. The perspective view which shows a mode that the LA terminal is set to the jig for attachment. The perspective view which shows a mode that another LA terminal is fitted to an LA terminal. The perspective view which shows the state in which the LA terminal assembly by which the fitting was carried out is inserted in the axial part made into the protrusion position. The perspective view which shows a mode that the axial part displaced to the retracted position from the state of FIG. The perspective view of the jig | tool for attachment of 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Mounting jig 12 Casing 13 Shaft part 15 Edge guide part (regulation part)
16 Restriction pin (Regulation part)
21 Contact portion 22 Barrel portion 23 Mounting hole 25 Fitting portion 27 Z-type terminal (terminal)
28 A-type terminal (terminal)
30 Ground wire 40 Tip portion 41 Small diameter portion 42 Holding portion 43 Accommodating hole 45 Mounting surface (terminal setting surface)
47 Biasing spring (return member)

Claims (4)

A mounting jig for fitting and mounting a plurality of terminals having mounting holes by mutual rotation ,
A casing,
A shaft portion slidably supported on the casing;
With
The shaft portion is configured to be inserted into the mounting hole of the terminal,
The shaft portion is configured to be displaceable between a protruding position protruding from the set surface of the terminal in the casing and a retracted position pushed into the casing from the protruding position .
The shaft portion includes a cylindrical holding portion,
The outer diameter of the holding portion is configured to be substantially equal to the inner diameter of the mounting hole of the configured terminal,
When the shaft portion is in the protruding position, the holding portion faces the mounting hole,
When the shaft portion is in the retracted position, the facing portion between the holding portion and the mounting hole is configured to be released ,
The shaft portion includes a small diameter portion having an outer diameter smaller than that of the holding portion,
When the shaft portion is in the retracted position, the small diameter portion faces the mounting hole ,
The outer diameter of the tip of the shaft portion is configured to be substantially equal to the inner diameter of the mounting hole ,
Ri tip surface is a flat surface or a gentle curved der of the shaft portion,
A return member for returning the shaft portion to the protruding position ;
A fixing mechanism for fixing the shaft portion at the retracted position ;
The fixing mechanism by pressing the distal end portion of the shaft portion, Ri switching mechanism der for switching the retracted position and the projecting position,
An edge guide portion as a restricting portion that restricts rotation of the terminal in a state of being inserted through the shaft portion is formed so as to protrude from the set surface,
The edge guide portion is configured to surround the periphery of the shaft portion, and is configured to have a shape that substantially follows the outline of the edge portion of the terminal that is initially set on the mounting jig. Mounting jig for the terminal to be used. The terminal mounting jig according to claim 1,
An operating member for displacing the shaft portion to the retracted position;
The operating member includes a protruding portion protruding from the casing,
A terminal mounting jig, wherein the shaft portion is displaced to the retracted position by pushing in the protruding portion. The terminal mounting jig according to claim 2 ,
A terminal mounting jig characterized in that when the operation member is operated, the tip of the shaft portion can be retracted from the set surface of the terminal in the casing. In the method of manufacturing a terminal assembly having a configuration in which a plurality of terminals having mounting holes are fitted to each other by relative rotation ,
A first step of setting the terminal in the mounting jig by inserting the shaft part into the terminal mounting hole in a state where the shaft part included in the terminal mounting jig is in the protruding position;
A second step of fitting the terminals together by inserting the shaft portion into an attachment hole of another terminal and rotating the shaft portion around the shaft portion;
A third step of removing the fitted terminal assembly from the mounting jig with the shaft portion in the retracted position;
Only including,
The terminal assembly manufacturing method according to any one of claims 1 to 3, wherein the terminal mounting jig is used as the mounting jig .

Images