JP2012048856A - Terminal crimping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal crimping device that crimps terminal fittings to respective ends of a plurality of electric wires, having a small diameter and narrow arrangement intervals, together at a time.SOLUTION: The terminal crimping device 1 includes a plurality of parallel anvil towers 2 which have terminal fittings 5 and ends of the electric wires 6 placed on tip faces 22, one by one; a crimper 3 that has a plurality of recesses 31 facing the respective tip faces 22 of the respective towers 2, holding crimp parts 51 of the terminal fittings 5 placed on the tip faces 22 of the respective towers 2 with the tip faces 22, and pressing the crimp parts 51, and a frame body 32 fringed with the respective recesses 31, and moves toward or away from the anvil towers 2; and a guide body 4 that has a plurality of elevation guide walls 41 which are arranged in parallel with the respective towers 2 interposed therebetween, can move up and down along the anvil towers 2, and holds respective pairs of side plate pieces 54, 55 of the terminal fittings 5 between mutually adjacent tip parts at top end centers while the tip parts protrude from the anvil towers 2 at the top end centers.

Description

  The present invention relates to a terminal crimping apparatus that collectively crimps terminal fittings to each end of a plurality of electric wires.

  Conventionally, as shown in Patent Document 1, a terminal crimping device is known in which terminal fittings are collectively crimped to core wires of a plurality of electric wires with terminal core wires exposed from an insulating layer. This type of terminal crimping apparatus generally includes a plurality of anvils on which the terminal fittings and the cores of the electric wires are placed, and a crimper having a plurality of parallel recesses facing these anvils. The terminal crimping device presses the terminal fitting on the anvil and the core wire of the electric wire with the concave portion of the crimper, and crimps the terminal fitting to the core wire of the electric wire.

  As shown in Patent Document 1 or the like, the terminal fitting of the portion to be crimped to the core wire of the electric wire (ie, the crimp portion) has both edges rising so as to sandwich the bottom on which the core wire of the electric wire is placed, and is bent. Yes. Both rising edges are composed of a pair of plate pieces (side plate pieces) facing each other. When being crimped to the core wire of the electric wire, the crimping portion of the terminal fitting enters the concave portion of the crimper from the two edges that stand up. Both edges that have entered are pushed and bent so as to embrace the core wire in the recess of the crimper, and are caulked to the core wire of the electric wire.

JP 7-335364 A

  In the conventional terminal crimping device shown in Patent Document 1 or the like, when the distance between the wires to which the terminal fitting is crimped is narrow, the distance between the crimper recesses needs to be set narrow corresponding to the distance between the wires. . Therefore, as shown in FIG. 9, the crimper 3P used in the conventional terminal crimping apparatus has a particularly thin portion 35P separating each recess 31P in the frame body 32P that borders each recess 31P. Insufficient strength could be secured, causing problems.

  Further, in order to ensure sufficient strength of the crimper, if the portion separating the recesses 31P is set to be thick, the interval between the recesses of the crimper becomes wide, and the crimper extends in the arrangement direction of the recesses and becomes long. For this reason, the terminal crimping apparatus has a problem in that the terminal fittings cannot be collectively crimped to a wire harness or the like in which the cross-sectional area of each electric wire is small and the distance between the electric wires is narrow.

In addition, when the conventional crimper 3P in which the interval between the recesses 31P shown in FIG. 9 is narrow is thickened except for the previous portion from the broken line and the portion 35P separating the recesses 31P is thickened, the width of the recess 31P of the crimper (see FIG. Referring x ₁ shown) is narrowed. When the width of the concave portion 1P of the crimper is narrowed, it is also necessary to narrow the opening width (that is, the distance between both edges) of the crimping portion of the terminal fitting that enters the concave portion 31P.

  However, the conventional terminal crimping apparatus has a problem because there is no means for stably holding the terminal fitting with a narrow opening width of the crimping portion on the anvil. If it is not held in a stable state on the anvil, it may be difficult to place the core wire of the electric wire on the terminal fitting whose opening width of the crimping portion is narrow. In particular, when each electric wire is thin and the terminal fitting to be crimped is small like the wire harness, there is a problem. In addition, if the terminal fitting is not held in a stable state on the anvil, it is difficult to reliably insert the crimping portion into each recess of the crimper.

  The objective of this invention is providing the terminal crimping apparatus which can crimp | bond a terminal metal fitting collectively to each edge part of the several electric wire with a small diameter and a narrow arrangement | positioning space | interval.

The terminal crimping apparatus of the present invention is as follows.
<1> A plurality of terminal fittings having a crimping portion including a bottom plate portion on which an end portion of an electric wire whose terminal core wire is exposed and a pair of side plate pieces extending from the bottom plate portion are provided. A terminal crimping device that collectively crimps each end,
A plurality of anvil towers arranged in parallel on each of which one end of each of the terminal fitting and the electric wire is placed on the front end surface,
A plurality of recesses that face the tip surface of each anvil tower, sandwich the crimping portion of the terminal fitting placed on the tip surface of each anvil tower with the tip surface, and press the crimping portion, A frame that borders the recess, and a crimper movable in a direction approaching or separating from the anvil tower;
In parallel so as to sandwich each anvil tower, it can move up and down along the anvil tower, each tip protrudes from the anvil tower at the top dead center, and between the tip parts adjacent to each other at the top dead center, And a guide body having a plurality of elevating guide walls for holding each pair of side plate pieces of the terminal fitting.

  The terminal crimping device of <1> is provided with the above-described configuration, so that the terminal fitting is reliably inserted into the recess of the crimper approaching the anvil tower from a pair of side plate pieces and delivered. .

  <2> The terminal crimping apparatus according to <1>, wherein the guide body is supported by elastic restoring means, the crimper approaches the anvil tower, and the crimper frame pushes down the guide body.

  The <2> terminal crimping apparatus has the above-described configuration, whereby the guide body is pushed down by the crimper.

  <3> Said <1> or <2 which hold | maintains each pair of side plate piece of the said terminal metal fitting so that each raising / lowering guide wall of the said guide body may become a substantially U-shaped cross section on the front end surface of each anvil tower. > The terminal crimping apparatus of>.

  According to the terminal crimping apparatus of the present invention, terminal fittings can be collectively crimped to each end of a plurality of electric wires having a small diameter and a small arrangement interval.

It is explanatory drawing which represented typically the cross section of the terminal crimping apparatus which concerns on one Embodiment. It is explanatory drawing which represented typically the state which mounted the terminal metal fitting on the front end surface of each anvil tower of the terminal crimping apparatus shown by FIG. It is a perspective view of a terminal metal fitting. It is explanatory drawing which represented typically the state which put the core wire of the electric wire in the crimping part of the terminal metal fitting mounted in each anvil tower of the terminal crimping apparatus shown by FIG. It is explanatory drawing which represented typically the state which lowered | lowered the crimper of the terminal crimping apparatus shown by FIG. 4, and entered a part of crimping part of the terminal metal fitting on each anvil tower in each recessed part of a crimper. . It is explanatory drawing which represented typically the state which further lowered the crimper of the terminal crimping apparatus shown by FIG. It is explanatory drawing which represented typically the state which further lowered the crimper of the terminal crimping apparatus shown by FIG. It is explanatory drawing which represented typically the state which raised the crimper of the terminal crimping apparatus shown by FIG. It is explanatory drawing which represented typically the cross section of the crimper used for the conventional terminal crimping apparatus.

  Hereinafter, the configuration and operation of a terminal crimping apparatus according to an embodiment of the present invention will be described with reference to the drawings. In addition, this invention is not limited only to embodiment shown below.

  Drawing 1 is an explanatory view showing typically the section of the terminal crimping device concerning one embodiment. As shown in FIG. 1, the terminal crimping device 1 includes a plurality of anvil towers 2, a crimper 3, and a guide body 4.

  The anvil tower 2 is erected on the base 20 and is arranged in parallel on the base 20. In the present embodiment, four anvil towers 2 (2 a, 2 b, 2 c and 2 d) are erected on the base 20. A gap 21 (21a, 21b and 21c) is provided between the anvil towers 2. The anvil tower 2a at one end and the side wall 23 (23a) erected on the base 20 and the anvil tower 2d at the other end and the side wall 23 (23b) erected on the base 20 A gap 24 (24a and 24b) is also provided between the two.

  The side wall 23a includes a storage chamber 26 (26a) for storing the elastic restoring means 25 (25a) on the side facing the gap 24a. The other side wall 23b also includes a storage chamber 26 (26b) for storing the elastic restoring means 25 (25b) on the side facing the gap 24b. The elastic restoring means 25 (25a and 25b) is made of, for example, a spring and is installed on the floor surface 27 (27a and 27b) of the storage chamber 26 (26a and 26b), respectively.

  The anvil tower 2 extends straight upward. Each front end surface 22 of the anvil tower 2 is recessed and curved. One terminal fitting is placed on the distal end surface 22 one by one. The height (position of the front end surface 22) of each anvil tower 2 is set to be substantially the same.

  The crimper 3 shown in FIG. 1 is placed above the anvil tower 2 and is waiting. The crimper 3 includes a plurality of recesses 31 facing the front end surface 22 of each anvil tower 2 and a frame body 32. The recess 31 has a ceiling surface 33 that faces the front end surface 22 of the anvil tower 2 and a pair of side wall surfaces 34 that extend downward from the ceiling surface 33 and face each other.

  The ceiling surface 33 is composed of two arc-shaped surfaces (arc surfaces) arranged symmetrically, and the center portion projects downward. A pair of side wall surfaces 34 extends downward from both ends of the ceiling surface 33. The space between the pair of side wall surfaces 34 becomes wider toward the lower side. In other words, the pair of side wall surfaces 34 facing each other are arranged so as to widen toward the end.

  The recess 31 is arranged in parallel so as to face the anvil tower 2. In this embodiment, the four recessed parts 31 have opposed each anvil tower 2 (2a, 2b, 2c, and 2d). The recess 31 is bordered by the frame body 32. The frame body 32 is provided with a convex portion 35 that protrudes downward from adjacent concave portions 31 and two end-side convex portions 36 that are disposed outside the concave portions 31 at both ends and protrude downward. . The frame 32 has a comb-like cross-sectional shape, and the protrusions 35 and the end-side protrusions 36 are arranged like comb teeth. The recess 31 has a size (space) into which the tip of the anvil tower 2 can enter.

  The crimper 3 includes a moving means (not shown) and can move toward (approach) the anvil tower 2 or move away (separate) from the anvil tower 2. As the moving means, known means used in this type of terminal crimping apparatus can be applied.

  The guide body 4 includes the gaps 21 (21a, 21b and 21c) formed between the respective anvil towers 2 (2a, 2b, 2c and 2d), the two side walls 23 (23a and 23b) and the anvils at both ends. Elevating guide walls 41 (41a, 41b, 41c, 41d) that can be moved up and down along the anvil tower 2 in the gaps 24 (24a and 24b) formed between the tower 2 (2a and 2d), respectively. 41e). The elevating guide walls 41 are arranged in parallel so that the anvil tower 2 is sandwiched between them.

  In the present embodiment, the elevating guide walls 41 (41a, 41b, 41c, 41d and 41e) are not formed as separate and independent parts, but are formed integrally. That is, each raising / lowering guide wall 41 (41a, 41b, 41c, 41d, and 41e) is integrally connected in the location which is not shown in figure. The guide body 4 having such an elevating guide wall 41 is, for example, a through hole 42 (42a, 42b, 42c and 42d) for inserting each anvil tower 2 (2a, 2b, 2c and 2d) into a substantially rectangular parallelepiped member. Can be manufactured.

  The elevating guide walls 41 (41a and 41e) arranged on the outermost side have protrusions 43 (43a and 43e) that protrude outward. The protrusion 43a is inserted into the storage chamber 26a of the side wall 23a, and is pressed against the ceiling surface 28a of the storage chamber 26a by the elastic restoring means 25a in the storage chamber 26a. The other protrusion 43e is inserted into the storage chamber 26b of the side wall 23b and pressed against the ceiling surface 28b of the storage chamber 26b by the elastic restoring means 25b in the storage chamber 26b. That is, the guide body 4 is supported by the elastic restoring means 25 (25a and 25b).

  The guide body 4 of the present embodiment is movable in the vertical direction along the anvil tower 2, and the protrusions 43 (43a and 43e) are provided on the ceiling surface 28 (28a and 28a and 26b) of the storage chamber 26 (26a and 26b). It stops by being locked at 28b). The guide body 4 in a stationary state is at the top dead center.

As shown in FIG. 1, each lifting guide wall 41 (41 a, 41 b, 41 c, 41 d and 41 e) of the guide body 4 at the top dead center has its tip end portion corresponding to the anvil tower 2 (2 a, 2 b, It protrudes upward from the respective end faces 22 of 2c and 2d). In addition, the front end surface of each raising / lowering guide wall 41 (41a, 41b, 41c, 41d, and 41e) is flat.
In the present embodiment, the position of each tip part of each lifting guide wall 41 (41a, 41b, 41c, 41d and 41e) at the top dead center is the same as the position of the tip part of the side wall 23 (23a and 23b). In other embodiments, for example, the tip portions of the elevating guide walls 41 (41a, 41b, 41c, 41d and 41e) are the tips of the side walls 23 (23a and 23b). You may set so that it may become higher than a part.

  FIG. 2 is an explanatory view schematically showing a state in which the terminal fitting is placed on the front end surface of each anvil tower of the terminal crimping apparatus shown in FIG. As shown in FIG. 2, the terminal fitting 5 placed on the front end surface 22 of each anvil tower 2 is sandwiched and held between the front end portions of the adjacent lifting guide walls 41.

The terminal fitting 5 is obtained by processing a metal plate. Here, the terminal fitting 5 will be described with reference to FIG. FIG. 3 is a perspective view of the terminal fitting. As shown in FIG. 3, the terminal fitting 5 includes a crimping part 51 and a contact part 52 provided in front of the crimping part 51.
The crimping portion 51 is a portion to be crimped to the end portion of the electric wire 6, and includes a bottom plate portion 53 on which the end portion of the electric wire 6 (core wire 61 in this embodiment) is placed, and a pair of extensions extending from the bottom plate portion 53. It consists of side plate pieces 54 and 55. The side plate pieces 54 and 55 are sometimes called crimping pieces or barrels.

  The bottom plate portion 53 has the contact portion 52 disposed in front thereof, a side plate piece 54 disposed on the right side toward the contact portion 52, and a side plate piece 55 disposed on the left side. That is, the side plate pieces 54 and 55 are arranged symmetrically with the bottom plate portion 53 interposed therebetween. The core wire 61 of the electric wire 6 placed on the bottom plate portion 53 is made of a conductor, and the terminal core wire 61 is exposed from the insulating layer 62. The core wire 61 is formed of a bundle of a plurality of conductive wires, and is a so-called multi-core. In other embodiments, the core wire 61 may be a single core. The pair of side plate pieces 54 and 55 both rise upward as shown in FIG. The crimp part 51 having such a shape is obtained, for example, by press molding.

  The contact portion 52 is a portion that comes into contact with another terminal fitting as a counterpart and is electrically connected to each other. The contact portion 52 is a so-called female terminal fitting. There is no restriction | limiting in particular in the shape of the said contact part 52, According to the objective, it sets suitably.

  As shown in FIG. 2, the crimping portions 51 of the terminal fittings 5 are placed on the front end surface 22 of each anvil tower 2. FIG. 2 shows the crimping part 51 as viewed from the contact part 52 side. The crimping portion 51 is placed such that the bottom plate portion 53 is disposed on the distal end surface 22. A pair of side plate pieces 54 and 55 is sandwiched between adjacent lifting guide walls 41 so that the cross section of the crimping portion 51 is substantially U-shaped on the distal end surface 22. The distance (opening width) between the side plate pieces 54 and 55 that are sandwiched and face each other is narrower than the opening width of the crimping part 51 of the terminal fitting 5 shown in FIG. That is, by sandwiching the crimping portion 51 of the terminal fitting 5 between the adjacent lifting guide walls 41, the opening width of the pair of side plate pieces 54 and 55 of the crimping portion 51 is smaller than the width of the recess 31 of the crimper 3. is doing.

  The distance between the adjacent lifting guide walls 41 is equal to or less than the width of the recess 31 of the crimper 3 so that the opening width of the crimping portion 51 of the terminal fitting 5 can be inserted into the recess 31 of the crimper 3. Set to

  In the present embodiment, the positions of the tips of the pair of side plate pieces 54 and 55 of the crimping portion 51 on each anvil tower 2 are set to be substantially the same as the positions of the tips of the lifting guide walls 41. In another embodiment, for example, the position of the tip of the pair of side plate pieces 54 and 55 is made higher than the position of the tip of the lifting guide wall 41, and the tip of the pair of side plate pieces 54 and 55 is moved up and down. You may make it protrude from the wall 41. FIG. On the contrary, the position of the tip of the side plate pieces 54 and 55 may be lower than the position of the tip of the lifting guide wall 41.

FIG. 4 is an explanatory view schematically showing a state in which the core wire of the electric wire is placed on the crimping portion of the terminal fitting placed on each anvil tower of the terminal crimping apparatus shown in FIG. 2. As shown in FIG. 4, the core wire 61 of the electric wire 6 is placed on the bottom plate portion 53 of each terminal fitting 5. Since the crimping portions 51 of the terminal fittings 5 are held by the adjacent lifting guide walls 41, they are positioned and stable. Therefore, it is easy to put the core wire 61 of the electric wire 6 into the crimping part 51.
Each electric wire 6 is held by electric wire holding means (not shown). As shown in FIG. 4, the electric wires 6 (core wires 61) are arranged in parallel at a predetermined interval.

FIG. 5 schematically shows a state in which the crimper of the terminal crimping apparatus shown in FIG. 4 is lowered and a part of the crimping portion of the terminal fitting on each anvil tower is inserted into each recess of the crimper. It is explanatory drawing.
When the crimper 3 is moved downward from the state of being arranged above the anvil tower 2 shown in FIG. 4 and the like, first, the convex portions 35 and the end-side convex portions provided on the lower side of the crimper 3 are arranged in a comb shape. The portion 36 comes into contact with the distal end portion of each lifting guide wall 41 of the guide body 4. The tip surfaces of the convex portion 35 and the end side convex portion 36 are flat. Each lifting guide wall 41 in contact with the convex portion 35 and the end side convex portion 36 is pushed down by the convex portion 35 and the end side convex portion 36 and descends along the anvil tower 2 when the crimper 3 moves further downward. Begin to. At this time, the elastic restoring means 25 (25a and 25b) supporting the guide body 4 starts to shrink.

When each lifting guide wall 41 is pushed down by the crimper 3, the crimping portions 51 of the terminal fittings 5 held between the adjacent lifting guide walls 41 start to be exposed between the lifting guide walls 41. At this time, the crimping portion 51 is exposed from the tips of the side plate pieces 54 and 55. The exposed side plate pieces 54 and 55 enter the respective recesses 31 of the crimper 3 facing the terminal fitting 5. The side plate pieces 54 and 55 that have entered the recess 31 further advance in the recess 31 along the pair of side wall surfaces 34 facing each other.
That is, the crimping portions 51 of the terminal fittings 5 placed on the front end surface 22 of each anvil tower 2 together with the core wire 61 of the electric wire 6 and held between the elevating guide walls 41 of the guide body 4 are The body 4 (elevating guide wall 41) is surely delivered and guided into the respective recesses 31 of the crimper 3.

FIG. 6 is an explanatory view schematically showing a state in which the crimper of the terminal crimping apparatus shown in FIG. 5 is further lowered. As shown in FIG. 6, when the crimper 3 is further moved downward, the guide body 4 is further pushed down, and the concave portion 31 of the crimper 3 approaches the tip surface 22 of the anvil tower 2. Moreover, the front end surface 22 of each anvil tower 2 becomes higher than the front end of each elevating guide wall 41 of the guide body 4 and is exposed from between each elevating guide wall 41.
At this time, the front ends of the side plate pieces 54 and 55 of the terminal fitting 5 in the recess 31 of the crimper 3 move so as to slide on the side wall surfaces 34 toward the ceiling surface 33 of the recess 31. When the side plate pieces 54 and 55 reach the ceiling surface 33, both the side plate pieces 54 and 55 are bent in an arc shape along the surface shape of the ceiling surface 33, and the tips of the side plate pieces 54 and 55 are connected to the ceiling surface 33. It hits in the center of the.

  FIG. 7 is an explanatory view schematically showing a state where the crimper of the terminal crimping apparatus shown in FIG. 6 is further lowered. As shown in FIG. 7, when the crimper 3 is further moved downward, the guide body 4 is further pushed down, and the concave portion 31 of the crimper 3 comes closer to the front end surface 22 of the anvil tower 2. Then, the crimping portion 51 of the terminal fitting 5 is sandwiched between the ceiling surface 33 of the concave portion 31 and the front end surface 22 of the anvil tower 2 and pressed between them. When pressed in this way, the side plate pieces 54 and 55 of the terminal fitting 5 bend so as to embrace the core wire 61 and are crimped to the core wire 61. The guide body 4 shown in FIG. 7 is at the bottom dead center.

  FIG. 8 is an explanatory view schematically showing a state in which the crimper of the terminal crimping apparatus shown in FIG. 7 is raised. As shown in FIG. 8, when the crimper 3 is moved upward, the guide body 4 is pushed up by the elastic force of the elastic restoring means 25 (25 a and 25 b) and rises along the anvil tower 2. When the convex portion 35 and the end side convex portion 36 of the crimper 3 are separated from the tips of the elevating guide walls 41 of the guide body 4, the guide body 4 reaches the top dead center, and the guide body 4 shown in FIG. Return to position.

  As shown in FIG. 8, when the crimper 3 is moved upward and retracted away from the anvil tower 2, the terminal fitting 5 that is crimped to the core wire 61 of the electric wire 6 placed on the front end surface 22 of the anvil tower 2. Appears. If it does in this way, the said terminal metal fitting 5 can be taken out from the terminal crimping apparatus 1. FIG.

  If it carries out as mentioned above, the terminal metal fitting can be collectively crimped | bonded to each edge part (core wire) of a some electric wire using the said terminal crimping | compression-bonding apparatus 1. FIG.

  In another embodiment, the crimping portion of the terminal fitting may be crimped to the part of the insulating layer covering the core wire together with the core wire of the electric wire. Further, depending on the terminal fitting used, the crimping portion of the terminal fitting may be caulked only on the insulating layer of the electric wire.

  In another embodiment, each elevating guide wall may adopt a guide body configured to be able to elevate and lower independently. In this case, for example, each elevating guide wall may be supported by the elastic restoring means and moved up and down independently.

  In the above embodiment, the tip surface of each lifting guide wall of the guide body is flat as shown in FIG. 1 and the like, but in other embodiments, for example, a recess is formed in the tip surface. It may be. The shape of the tip part of the lifting guide wall is sufficient if at least the adjacent lifting guide walls can hold the crimping part of the terminal fitting with a predetermined opening width.

  In the above embodiment, the guide body is pushed down as the crimper descends, but in other embodiments, for example, the guide body is configured to descend independently as the crimper descends. There may be. The guide body should just hold | maintain the crimping part of a terminal metal fitting (positioning) and can deliver the said crimping part to the recessed part of a crimper at least. The guide body only needs to be retractable so as not to prevent the crimper from descending after the crimping portion is transferred into the crimper recess.

  In the terminal crimping device 1 of the above embodiment, the crimper 3 is closer to the anvil tower 2 or the crimper 3 is separated from the anvil tower 2. In other embodiments, the anvil tower is The configuration may be such that the crimper is approached or the anvil tower is spaced from the crimper. Furthermore, in other embodiments, the crimper and anvil tower may be close together or spaced apart. That is, in the terminal crimping apparatus of the present invention, the crimper relatively approaches the anvil tower, or the crimper relatively separates from the anvil tower.

  In the terminal crimping apparatus of the above-described embodiment, the height (so-called crimp height) of each crimped portion of the terminal fitting crimped to each core wire of the electric wire is set to be the same. In the terminal crimping apparatus according to another embodiment, for example, the height of each anvil tower (the shape of the tip surface) is individually adjusted, and the shape of the concave portion of the crimper meshed with each anvil tower is also individually adjusted. Thus, the crimp height may be set individually. In this case, the position (position at the top dead center) of each lifting guide wall of the guide body that sandwiches the crimping portion of the terminal fitting is also adjusted as appropriate so as to correspond to the individually set crimp height.

The terminal crimping device of the present invention is particularly excellent when the distance (pitch) between the concave portions of the crimper is narrow. This is because even if the distance between the concave portions 31 of the crimper 3 is shortened, the portion (the convex portion 35) separating the concave portions 31 can be kept thick to some extent (see FIG. 1 and the like). That is, the conventional crimper 3P shown in FIG. 9 excluding the part beyond the broken line (see FIG. 9) can be used as the crimper of the present invention. Therefore, even when the distance between the concave portions of the crimper is narrow, the strength of the crimper can be ensured.
In this crimper, the width of the recess is narrower than that of the conventional crimper 3P. However, since the guide body adjusts the opening width of the crimping portion so that the crimping portion of the terminal metal fitting enters the narrowed recess, it does not matter that the width of the recess is narrowed.

  In addition, it cannot be overemphasized that the electric wire which can be applied to the terminal crimping apparatus of this invention is not restricted to an electric wire with a small cross-sectional area known as an ultrafine electric wire etc. (small diameter). The terminal crimping apparatus of the present invention can be preferably applied to an electric wire thicker than the electric wire.

DESCRIPTION OF SYMBOLS 1 Terminal crimping apparatus 2 Anvil tower 3 Crimper 31 Recessed part 32 Frame body 4 Guide body 41 Lifting guide wall 5 Terminal metal fitting 51 Crimping part 53 Bottom plate part 54, 55 Side plate piece 6 Electric wire 61 End part (core wire)

Claims (3)

A plurality of terminal fittings each having a crimp portion including a bottom plate portion on which an end portion of an electric wire with an exposed end core wire is placed and a pair of side plate pieces extending from the bottom plate portion are connected to each end portion of the plurality of electric wires. A terminal crimping device that crimps to
A plurality of anvil towers arranged in parallel on each of which one end of each of the terminal fitting and the electric wire is placed on the front end surface,
A plurality of recesses that face the tip surface of each anvil tower, sandwich the crimping portion of the terminal fitting placed on the tip surface of each anvil tower with the tip surface, and press the crimping portion, A frame that borders the recess, and a crimper movable in a direction approaching or separating from the anvil tower;
In parallel so as to sandwich each anvil tower, it can move up and down along the anvil tower, each tip protrudes from the anvil tower at the top dead center, and between the tip parts adjacent to each other at the top dead center, And a guide body having a plurality of elevating guide walls for holding each pair of side plate pieces of the terminal fitting.   The terminal crimping apparatus according to claim 1, wherein the guide body is supported by an elastic restoring means, the crimper approaches the anvil tower, and a frame body of the crimper pushes down the guide body.   3. The terminal crimping according to claim 1, wherein each lifting guide wall of the guide body holds the pair of side plate pieces of the terminal fitting so that the cross-section is substantially U-shaped on the tip surface of each anvil tower. apparatus.

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