JP2018195502A - Terminal crimping applicator, terminal crimping machine, and method of manufacturing terminal crimping wire - Google Patents

Abstract

To provide: an applicator for a terminal crimping machine, hardly causing "scuffed wastes" of a chain terminal carrier and stable in a braking action; and the like.SOLUTION: An applicator AP (illustrated in Figure 11) includes a terminal feed mechanism 200 to feed a chain terminal RT, a crimper 115 to crimp a terminal T to a wire end, and the like. A braking mechanism 30 of a terminal in the terminal feed mechanism 200 includes: a roller 33 pressed against a chain terminal carrier C; a central axis 35 of rotation of the roller 33; and a pressing mechanism 31.237 applying a pressing force on the roller 33 via the axis 35.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a terminal crimping machine and the like used for crimping a terminal to an end portion of a peeled electric wire. In particular, the present invention relates to a terminal crimping machine or the like that improves the chain terminal feed braking mechanism so that “scraping” of the chain terminal carrier hardly occurs and the braking force is easily stabilized. Furthermore, the present invention relates to a crimping machine and the like improved so that the end of the peeled wire can be easily positioned at the center of the crimping machine.

  BACKGROUND ART A terminal crimping machine that crimps a terminal to an end portion of a stripped electric wire is widely used in a process of manufacturing a wire harness for automobiles or electrical equipment. In a terminal crimping machine, while feeding a chain terminal (also called a terminal band) in which a large number of terminals are arranged in a band, the terminal is positioned in the crimping machine, and the end of a peeled wire that is supplied automatically or manually. Crimp the terminal.

  Hereinafter, an outline of a chain terminal, a conventional crimping machine, and a crimping machine according to an embodiment of the present invention will be described with reference to the drawings. First, the meaning of directions in the drawings attached to the present specification will be described. The “vertical direction” shown in each figure indicates the moving direction of the crimper which is a terminal crimping tool (upper die). Here, “upper” is the direction in which the crimper moves away from the anvil (lower mold), and “lower” is the direction in which it approaches. In the present specification, the terms “upper” and “lower” are expressions in line with a general machine arrangement, and are not limited to upper and lower in the direction of earth gravity.

  “Upstream / downstream” indicates the upstream direction of the terminal feed or the downstream direction. The “left / right direction” is generally the left / right direction as viewed from the figure. “Backward direction” refers to the axial direction (longitudinal direction) of terminals and wires, and “Back (also referred to as tip)” refers to the direction in which the tip of the peeled wire (exposed core wire with the sheath removed) faces. , “Front (also called the original)” is the reverse direction. The operator / observer of the crimping machine usually stands on the near side of the crimping machine. These directions merely explain the general situation of the machine layout in an easy-to-understand manner, and have no meaning to limit the present invention.

  First, the outline of the chain terminal will be described with reference to FIG. The chain terminal RT is formed by connecting a number of terminals T with a carrier C. Each individual terminal T includes a barrel portion Tb and a connector portion Tk from the carrier C side. The terminal T is an open barrel type, and the barrel portion Tb has a U-shape that opens upward. The barrel portion Tb is a portion to which the end portion of the peeled electric wire W is crimped (crimped), the inner barrel Ib to be crimped to the end portion (instrument portion) WI of the electric wire, and the peeled exposure. It has a wire barrel Wb that is crimped to the core wire WC. On the other hand, the connector portion Tk is a portion connected to a mating connector (not shown) to which the terminal T is connected.

  The carrier C is a belt-like plate and connects a large number of terminals T in a state of being arranged at a predetermined pitch. The barrel portion Tb and the carrier C are connected by a tab Tt (the tab Tt is cut at the time of crimping). In the carrier C, rectangular claw engaging holes Ch on which the tips of the claw of the terminal feed mechanism (reference numeral 211b in FIG. 11) are formed are opened at a predetermined pitch. In a continuous crimping machine, the carrier C is advanced in the longitudinal direction by a terminal feed mechanism, which will be described later, the terminal T is positioned in the crimping machine (see FIG. 11), and the peeled wire is supplied automatically or manually. Crimp to the end of W. The chain terminal RT is typically formed by pressing a thin plate (thickness example: 0.2 mm) such as phosphor bronze or aluminum.

  Next, referring to FIG. 11, as an example of a general terminal crimping machine / applicator currently used, the overall configuration and the terminal feed mechanism of Japanese Patent No. 4212687 (Patent Document 1) will be described. An “applicator” is a “set of crimping tools (crimpers / anvils) and terminal feeding mechanisms assembled” for each type and size of electric wires and terminals, and each time the type and size of electric wires and terminals are changed. The predetermined applicator can be exchanged in a short time with one set.

The crimping machine 100 and applicator AP are composed of the following main parts. In FIG. 11, the portion indicated by the solid line is the applicator AP, and the portion indicated by the two-dot chain line is a component of the crimping machine other than the applicator AP.
Applicator body holder 111;
This is a columnar structure on which the following terminal feed mechanism and crimper / shank lifting mechanism are mounted.

Terminal feed mechanism 200;
This is a mechanism for sending the chain terminal RT sent from the left (upstream) direction to the right (downstream) on the lower side of the figure. The mechanism 200 includes a plate 215 on which the chain terminal RT rides and slides, a terminal feed guide 213, a terminal feed claw 211 for feeding the chain terminal, and the like. As shown by the solid line and the imaginary line, the feed claw 211 swings left and right, and its tip 211b (lower right in the figure) engages with the claw engagement hole Ch (see FIG. 13) of the chain terminal carrier C. Then, the chain terminal RT is sent in the right direction (downstream) in FIG. The feed claw 211 is urged by a claw spring 204 so that the claw tip 211b faces downward. The claw tip 211b hits the bottom surface of the guide 213 and the top surface 215b of the plate 215 on which the chain terminal RT slides, and the posture of the feed claw 211 is determined.

  The sent terminal is caulked to the outer peripheral portion of the peeled electric wire (not shown) between the crimper 115 (lifting upper mold) and the anvil 119 (fixed lower mold) after leaving the terminal feed guide 213. (Crimped). Note that immediately before crimping, each terminal (individual terminal T) is separated from the carrier C of the chain terminal RT (the tab Tt is cut by the slide cutter 121), and the carrier after separation is the right (downstream) side in FIG. Discharged through the carrier guide 219. The terminal feed mechanism 200 is also provided with a braking mechanism 230 (one of the main parts in the present invention) that applies appropriate braking to the chain terminal RT, which will be described later.

Crimper shank lifting mechanism;
A crimper 115, which is an upper moving tool for terminal crimping, is driven up and down by a shank 105 connected thereto. The shank 105 is driven up and down by a ram bolt 102 connected thereto. The ram bolt 102 is moved up and down by the ram lifting mechanism 101 of the crimping machine 100. The ram lifting mechanism 101 includes various types such as a hydraulic type, a mechanical type, and a servo press type.

Applicator mounting base;
The lowermost part of the applicator AP is a base plate 113, and a set (whole) of the applicator AP is placed on the base plate 113. The base plate 113 is mounted and fixed on the applicator mounting portion 114 of the crimping machine main body.

Braking mechanism 230;
A braking mechanism 230 is provided at the rear of the terminal feed guide 213 shown at the lower left end in FIG. 11 to brake the terminal T that is intermittently fed forward. The braking mechanism 230 includes a braking plate 231, a disc spring 237, a lever 241, and the like. The braking mechanism 230 continuously applies frictional resistance to the carrier C, thereby preventing overrun of the chain terminal RT intermittently fed forward by the feed claw 211. Then, the terminal T is accurately positioned with respect to the anvil 119 and the crimper 115.

12 and 13 are a side view and a perspective view of a braking mechanism 230 disclosed in Patent Document 2 (the braking mechanisms in Patent Document 1 and Patent Document 2 are the same). As shown in FIG. 13, the brake plate 231 that is a central member of the brake mechanism 230 protrudes below the band plate portion 231d extending in the rearward direction and the rear end portion of the band plate portion 231d. It has a lower protrusion 231b and a front lower protrusion 231g that protrudes to the near side of the band plate portion 231d and slightly below the rear portion. As shown in FIG. 12, the lower protrusion 231 b is placed on the upper surface of the plate 215. As shown in FIG. 13, the front lower protrusion 231g is placed on the upper surface of the carrier C of the chain terminal RT, and the lower surface 231j is a braking surface for braking the chain terminal RT.

  A hexagon socket head cap screw 233 penetrates in the vertical direction near the rear end of the brake plate 231. The bolt 233 extends downward and penetrates the plate 215 as shown in FIG. A plurality of disc springs 237 are fitted on the outer periphery of the lower portion of the bolt 233 extending downward from the plate 215. The disc spring 237 is supported in a compressed state between the nut 215 and the plate 215 by a wing nut 239 screwed into the lower end of the bolt 233.

  As a result, the brake plate 231 is pulled downward via the bolt 233. Then, the urging force of tilting the braking plate 231 in the forward and downward direction about the lower surface of the lower protrusion 231b can be adjusted by the tightening degree of the wing nut 239. As a result, the force by which the lower surface (braking surface) 231j of the front lower projection 231g of the braking plate 231 pushes the terminal carrier C, that is, the braking force applied to the chain terminal RT can be adjusted.

  A lever 241 that lifts the front end 231m of the brake plate 231 is provided slightly below the front end 231m of the brake plate 231 as shown in FIGS. When the lever 241 is rotated counterclockwise around the central axis 241d from the state of FIG. 11, the cam portion 241b at the upper right end of the lever 241 lifts the front end 231m of the braking plate 231. Then, the lower surface (braking surface) 231j of the front lower protrusion 231g is separated from the upper surface of the terminal carrier C, so that no braking force is applied to the chain terminal RT. In this state, the chain terminal RT is pulled out and inserted into the applicator AP, and the position is adjusted.

The following improvements may be pointed out with respect to the braking mechanism of the type in which the above-described braking plate and the carrier frictionally slide.
(A) In recent years, the number of terminals with thick plating has increased in order to increase the conductivity efficiency, and a lot of scraps are generated when feeding chain terminals (note that there are also scraps other than plating scraps). ). As the scraps accumulate, the carrier surface is damaged and lint is generated.

(A) Since the braking force on the carrier depends on the sliding frictional force, it easily changes. Therefore, the burden of the claw for feeding the terminal is large, and adjustment of the feeding position and replacement of parts are necessary due to wear of the toe.
(C) When the chain terminal is fed too much, it is difficult to overcome the frictional force of the brake plate and return the carrier in the direction opposite to the feeding direction. For this reason, the crimping portion (blade type) of the crimper anvil does not sufficiently exert the effect of automatically centering the center of the terminal to the center of the crimping machine during crimping.
(D) When the brake mechanism is reassembled, it is necessary to readjust the carrier braking force (holding force).

  The applicant of the present application has obtained a patent of an invention relating to a braking mechanism of a type in which a rolling element is pressed against a carrier of a chain terminal as corresponding to the improvement points of the above (a) to (c) (Patent Document 3). ).

Patent No. 4212687 No. 7-27591 Patent 4745123

  An object of the present invention is to provide an applicator for a terminal crimping machine in which “scrap” of a chain terminal carrier is hardly generated. Alternatively, an object of the present invention is to provide a terminal crimping machine with improved performance for automatically centering the center of the terminal around the center of the crimping machine, an applicator for the terminal crimping machine, and the like. Alternatively, it is an object to provide a terminal crimping machine or the like that does not need to readjust the carrier braking force (holding force) when the braking mechanism is reassembled. Alternatively, an object of the present invention is to provide a crimping machine and the like improved so that the end of the peeled wire can be easily positioned at the crimping machine center.

  In this “Means for Solving the Problems” and “Claims”, the reference numerals of the respective parts of the attached drawings are shown in parentheses, but this is merely for reference and is within the scope of the right. However, the present invention is not limited to the attached drawings.

  The applicator for a first terminal crimping machine according to the present invention comprises a terminal feed mechanism (200) for feeding a chain terminal (RT) connected to a number of individual terminals (T), and a feed for the chain terminal (RT). A braking mechanism (30, 50) for braking, and a crimper (115) and an anvil (119) for crimping the barrel portion (Tb) of the terminal (T) to the end portion (WI / WC) of the peeled wire An applicator (AP), wherein the braking mechanism (30, 50) is pressed against the carrier part (C) of the chain terminal (RT), and the roller (33, 53) And a pressing mechanism (31, 237, 51, 61) for applying a pressing force to the rollers (33, 53) via the rotation center shaft (35, 55). It is characterized by comprising.

  In the applicator for a second terminal crimping machine according to the present invention, the terminal feeding mechanism (200) includes a plate (215) on which the chain terminal (RT) is slid, and the braking mechanism (50) is A roller (53) pressed against the carrier part (C) of the chain terminal (RT), a rotation center axis (55) of the roller (53), and an upper part (51c) to which the rotation center axis (55) is attached A braking frame having a lower part (51s) serving as a biasing spring receiver and a back part (51h) connecting both parts (51c, 51s) and being incorporated in a side end part (215z) of the plate (215) (51) and a spring (61) interposed between the lower part (51s) and the plate (215) for biasing the braking frame (51) downward. To do.

The applicator for a third terminal crimping machine of the present invention has the braking surface (33b, 53, 231j) on which the braking mechanism (30) is pressed against the carrier part (C) of the chain terminal (RT). A biasing member (31, 51, 231) provided with a biasing portion (31d, 51s, 61), and a biasing member (237, 61) for biasing the braking member. The member includes a spring (237 · 61) and a spring deflection amount defining member (238) that sets the compression deflection of the spring to a normal state.
In this third applicator for a terminal crimping machine, the braking member (31, 51, 231) is of a type that slides frictionally with the carrier part (C) (such as the braking arm 231 of FIGS. 13 and 14). ) Or a roller type (such as the braking rollers 33 and 53 in FIGS. 1 to 7).

  The fourth crimping machine of the present invention includes a terminal feed mechanism (200) for sending a chain terminal (RT) in which a large number of individual terminals (T) are connected by a carrier (C), and a barrel portion of the terminal (T). Crimper (315/316) and anvil (319/318) for crimping (Tb) to the end (WI / WC) of the peeled wire, and crimper driving means (101/102) for driving the crimper (315/316) A wire end positioning mechanism (350, 321p) for positioning the end (WI) of the wire to be crimped to the terminal (T) at the center of the crimping machine, The electric wire end positioning mechanism includes an electric wire insertion mechanism (350) capable of positioning an end portion (WI) of the electric wire in a longitudinal direction of the electric wire and the crimper driving direction, and an end portion (WI) of the peeled electric wire, Guide part having a guide recess (321p) that greets the center of the crimping machine The wire insertion mechanism (350) inserts the end portion (WI) of the peeled wire at a position above the guide recess (321p), and then the guide recess ( 321p) is moved downward so that the end (WI) of the electric wire is brought into contact with the guide recess (321p), whereby the end (WI) of the electric wire is centered at the center of the crimping machine. It is characterized by being.

  In the embodiment described later, the guide member (321) is a slide cutter 321 that cuts the carrier C of the chain terminal RT. Note that “upper” and “lower” in the “crimping machine of the present invention” are not limited to upper and lower in the direction of earth gravity, as described above. In other words, there is no meaning to limit the present invention.

  In the first terminal crimping method of the present invention, positioning is performed while feeding a chain terminal (RT) connected to a number of individual terminals (T), and the barrel portion (Tb) of the terminal (T) is peeled off. In this method, the carrier part (C) of the chain terminal (RT) is pressed by a roller (33), and at this time, the rotation center axis ( A pressing force is applied to the roller (33) via 35).

  The second terminal crimping method of the present invention is such that a chain terminal (RT) connected to a number of individual terminals (T) is fed to the center of the crimping machine while being fed, and the barrel (Tb) of the terminal (T). Is provided with a guide recess (321p) that welcomes the end (WI) of the peeled wire at a position that fits the center of the crimping machine. Then, the end (WI) of the electric wire is inserted into a position above the guide recess (321p), and then moved downward so as to contact the guide recess (321p). The end portion (WI) of the wire is centered at the center of the crimping machine by bringing WI) into contact with the guide recess (321p). Here, the “center of the crimping machine” refers to the center line of the crimper that is a crimping die that moves up and down.

  According to the first and second applicators of the present invention, the terminal feed braking mechanism (30, 50) includes the rollers (33, 53) pressed against the carrier portion (C) of the chain terminal (RT). At the same time, a pressing force is applied to the roller through the rotation center shaft (35, 55) of the roller, so that “scraping” of the chain terminal carrier hardly occurs and the operation of the roller (33, 53) is smooth. It is. According to the third applicator of the present invention, since the spring deflection amount defining member (238) is provided, it is not necessary to readjust the carrier braking force when the braking mechanism is reassembled, and the braking force is stabilized. be able to. According to the fourth crimping machine of the present invention, it is easy to position the end of the peeled wire at the crimping machine center, and a crimping machine excellent in the terminal crimping state can be provided.

1 is a perspective view showing a configuration of a terminal braking mechanism 30 according to a first embodiment (with a braking arm 31 type and a disc spring collar 238) of the present invention. FIGS. 2A and 2B are diagrams illustrating the “brake ON state” of the terminal braking mechanism 30 in FIG. 1 (the terminal feed guide 213 is omitted), in which FIG. 1A is a side view and FIG. FIGS. 2A and 2B are diagrams illustrating a “brake release state” of the terminal braking mechanism 30 in FIG. 1 (the terminal feed guide 213 is omitted), in which FIG. 1A is a side view and FIG. It is a rear view which shows the principal part of the applicator (braking frame 51 type) which concerns on 2nd embodiment of this invention. (A) is the perspective view which looked at the braking mechanism 50 of the applicator of FIG. 4 from the upper front downstream. (B) is a side view of the eccentric cam 57. FIG. 5A and 5B are diagrams showing a “brake ON state” of the terminal braking mechanism 50 of FIG. 4, where FIG. 5A is a side view, FIG. 4B is a front view, and FIG. 5C is a schematic view of a relationship between the braking frame 51 and its mounting bolts 65. FIG. 5A and 5B are diagrams showing a “brake release state” of the terminal braking mechanism 50 in FIG. 4, where FIG. 5A is a side view, FIG. 4B is a front view, and FIG. 5C is a schematic view of a relationship between the braking frame 51 and its mounting bolt 65. FIG. It is a figure explaining embodiment which improved the performance which centers an electric wire edge part to the center of a crimping machine or terminal T. (A) is a side view schematically showing the configuration of the main part of the crimper 315, the anvil 319, the slide cutter 321, and the wire insertion device 350. FIG. (B) is a block diagram showing a configuration of a control system. It is a front view which shows typically forms, such as the inscrimper 315 and the slide cutter 321 in embodiment of FIG. FIG. 10 is a timing chart for explaining an operation sequence of the apparatus of FIGS. 8 and 9. FIG. It is a front view which shows the outline | summary of the conventional general terminal crimping machine and applicator (patent 41212687) similar to this embodiment as a whole. 12 is a side view of a braking mechanism 230 in a conventional applicator AP (Japanese Utility Model Publication No. 7-27591) similar to FIG. It is a perspective view of the braking mechanism 230 of the applicator AP of FIG.

RT: Chain terminal, T: Terminal, C: Carrier, Ch: Claw engaging hole, Tt: Tab,
Tb: barrel part, Ib: ins barrel part, Wb: core wire barrel part, Tk: connector part,
W: Electric wire, WI: Inner part, WC: Exposed core wire, WS: Wire insertion space
AP; Applicator, S; Clearance
30; braking mechanism,
31; Braking arm (pressing mechanism), 31b; bottom projection, 31c; strip plate portion, 31d;
31e; upper and lower through-holes, 31j; front side end face, 31m; female screw hole, 31r;
33; Roller, 33b; Lower outer peripheral surface, 33f; Shaft hole,
35; Rotation center shaft, 35b; Hexagon socket part, 35d; Roller shaft hole sliding part, 35h; Male thread part,
50; Braking mechanism, 51; Frame (pressing mechanism), 51c; Upper part, 51h; Back part,
51k; Bolt penetration part, 51m; Bolt penetration hole, 51p; Cam hole, 51s; Lower part,
53; Roller, 55; Center axis of rotation
57; eccentric cam, 57b; disc portion, 57f; cam portion, 57f1; cam surface, 57f2; cam surface,
57k; Shaft hole, 58; Knob, 59; Rotating shaft
61; Spring (pressing mechanism), 63; Center shaft (bolt),
65; mounting bolt, 65v; lower end head, 67; lock nut,

100; crimping machine, 101; ram lifting mechanism (crimper driving means),
102; Ram bolt (crimper drive means), 105; Shank,
111; Applicator body holder, 113; Base plate, 114; Applicator mounting part
115; crimper, 119; anvil, 121; slide cutter
200; terminal feed mechanism, 204; claw spring, 211; terminal feed claw, 211b; claw tip,
213; Terminal feed guide, 213x; Bolt through hole, 214; Guide plate, 214x; Bolt through hole
215; Plate, 215b; Upper surface, 215d; Through hole, 215r; Notch, 215s; Front end surface,
215t; female screw hole, 215w; female screw hole, 215x; bottom surface, 215y; female screw hole, 215z; side edge
219; Career Guide
230; Braking mechanism, 231; Braking plate, 231b; Back and lower projection, 231d; Band plate, 231g; Front lower projection,
231j; sliding braking surface (bottom surface), 231m; front side end,
233; Hexagon socket head cap screw (biasing part), 233b; Head (hexagonal part), 233g; Lower part,
234; flat washer, 235; disc spring, 236; flat washer, 237; disc spring (biasing part),
238; Spring collar (spring deflection amount regulating member), 239; Wing nut
241; Lever, 241b; Cam part, 241d; Center shaft, 241g; Operation knob part, 242; Rotating shaft
300; Crimping machine, 301; Ram lifting mechanism, 313; Cut-off punch, 313r; Punch part,
315; Insucriper, 315p; caulking recess, 315r; upper bottom,
315v; the part where the crimper hits the upper end outside of the barrel Ib of the terminal T, 315x;
316; Wire crimper, 318; Wire anvil, 319; Inns anvil,
321; slide cutter (guide member), 321b; upper surface, 321d; punch contact portion,
321g; carrier guide groove, 321k; upper surface, 321p; guide recess, 321q; center ring contact part
321s; central torso, 321x; legs, 321y; spring hole
350; Electric wire insertion device (mechanism), 351; Clamp, 351b; Clamp piece,
352; Open / close drive actuator 353; Slider, 355; Insertion guide,
357; Insertion actuator, 361; Lift guide, 363; Lift actuator, 390; Control unit

  The applicator terminal braking mechanism 30 according to the first embodiment of the present invention will be described below with reference to FIGS. 1-3, the part shown with the same code | symbol as FIGS. 11-13 points out the substantially same part and member. Detailed descriptions of these parts may be omitted. The meaning of each direction indicated by an arrow in each figure is the same as that in FIGS.

  Characteristic portions in the first embodiment are a braking roller 33 of the chain terminal RT and a spring collar 238 (a spring deflection amount defining member) fitted to the outer periphery of the disc spring 237. That is, the braking mechanism 30 of this embodiment applies a pressing force to the roller 33 via the roller 33 pressed by the carrier portion C of the chain terminal RT, the rotation center shaft 35 of the roller 33, and the shaft 35. A pressing mechanism is provided. Here, the pressing mechanism includes a braking arm 31. A roller rotation center shaft 35 is attached to one end (front end) of the arm 31, and a biasing member (a disc spring 237 and a spring collar 238) is attached to the other end (back end). The spring collar 238 is a spring deflection amount defining member that sets the compression deflection of the disc spring to a normal state.

  FIG. 1 shows a chain terminal RT sent from the upper left to the lower right. The chain terminal RT is placed on the upper surface 215b of the plate 215, and is sent in the downstream (right) direction so as to slide on the upper surface 215b. The plate 215 is a substantially rectangular plate-like member that is relatively long in the left-right direction and relatively short in the front-rear direction. The chain terminal RT is in a posture in which the carrier C is located on the front side and the terminal T is located on the back side. The end portion WI / WC of the peeled wire W is inserted into the barrel portion Tb on the near side of the terminal T and is crimped.

  On the front side of the upper surface of the plate 215, a terminal feed guide 213 that is a bank-like member is disposed along the same side. The carrier C of the chain terminal RT is sandwiched between the lower surface of the guide 213 and the upper surface of the plate 215 (not pressed). The front end of the carrier C is guided (not in contact) with the terminal feed guide 213.

  The lower outer peripheral surface 33b of the braking roller 33 is pressed against the upper surface of the carrier C (see also FIG. 2A, in which the terminal T and the terminal feed guide 213 are not shown). The brake roller 33 is a disk-shaped member having a certain thickness, and its width is substantially equal to the width of the carrier C. A shaft hole 33f is opened at the center of the braking roller 33. The rotation center shaft 35 passes through the shaft hole 33f. The terminal feed guide 213 where the brake roller 33 and the central shaft 35 are present has a notch 215r.

  In this example, the rotation center shaft 35 includes a hexagonal hole portion 35b, a roller shaft hole sliding portion 35d, and a male screw portion 35h from the near side to the far side. The male screw portion 35h is screwed into the female screw hole 31m of the front end surface 31j of the braking arm 31 described below. As will be described in detail later, between the roller shaft hole sliding portion 35d of the braking roller 33 and the roller shaft hole sliding portion 35d of the rotation center shaft 35, rotational sliding friction is caused to rotate the braking roller 33. As a result, the carrier C is braked. Instead of the friction of the bearing portion, a separate friction applying mechanism such as a drum brake system may be attached to the rotation center shaft 35.

  The braking arm 31 is a member constituting a main part of the pressing mechanism of the braking roller 33. As clearly shown in FIG. 1, the brake arm 31 includes a strip plate portion 31c extending in the frontward direction, a back projection 31b projecting below the back end portion of the strip plate portion 31c, and a strip plate portion 31c. A front protrusion 31r protruding in the front direction from the front end face 31j. As shown in FIG. 2A, the lower protrusion 31b is placed on the upper surface of the plate 215. As shown in FIG. 1, a female screw hole 31m for fixing the above-described rotation center shaft 35 is formed in the front side end face 31j. As shown in FIG. 3B, the front protruding portion 31r is a portion that is pushed up by the lever 241 when the brake is released.

  Near the end of the braking arm 31 on the back side, an upper and lower through hole 31e is formed. A hexagon socket head cap bolt 233 passes through the through hole 31e in the vertical direction. A flat washer 234 and a disc spring 235 are fitted to the outer periphery of the lower side of the head (hexagonal socket) of the bolt 233. The flat washer 234 and the disc spring 235 are sandwiched between the bolt head 233b and the upper surface 31d of the braking arm 31 from above and below.

As shown in FIG. 2A, the bolt 233 extends downward and also penetrates the through hole 215d of the plate 215. A plurality of disc springs 237 are fitted to the outer periphery of the lower portion 233g of the bolt 233 extending downward from the plate 215. The disc spring 237 is supported in a compressed state between the flat washer 236 on the nut 239 and the lower surface of the plate 215 by a wing nut 239 screwed into the lower end of the bolt 233.

  With the above configuration, the braking arm 31 is pulled downward via the bolt 233. The urging force for inclining the braking arm 31 in the forward and downward direction about the lower surface of the lower protrusion 31b is determined by the tightening degree of the wing nut 239. This urging force determines the force with which the braking roller 33 pushes the terminal carrier C, that is, the braking force applied to the chain terminal RT.

  In this embodiment, a cylindrical spring collar 238 (a spring deflection amount defining member) is fitted to the outer periphery of the disc spring 237. The inner diameter of the spring collar 238 is slightly larger than the outer diameter of the disc spring 237. The thickness (vertical dimension) of the spring collar 238 is equal to the thickness compressed so that a plurality of stacked disc springs (groups) 237 can exert an appropriate compressive force.

Therefore, as shown in FIG. 2A, if the wing nut 239 is tightened so that the upper surface of the collar 238 contacts the lower surface of the plate 215 and the lower surface of the collar 238 contacts the upper surface of the flat washer 236, an appropriate braking force can be obtained. Can be obtained. By using such a spring deflection amount defining member, it is not necessary to readjust the carrier braking force (holding force) when reassembling the braking mechanism. Can be provided. Such a spring deflection of defining members may also be used in the conventional brake plate 231 of FIG 2.

  A lever 241 for lifting the braking arm 31 is provided on the front side of the upstream end of the plate 215. The lever 241 has a semicircular cam portion 241b and an operation knob portion 241g extending downstream therefrom. A rotation shaft 242 passes through the central portion of the cam portion 241b. The rotating shaft 242 is screwed into a female screw hole 215t formed in the front end surface 215s (see FIG. 1) of the plate 215.

  When the lever 241 is pushed downward from the state shown in FIG. 2 and rotated counterclockwise around the central axis 242, the cam portion 241 b at the upper right end of the lever 241 is moved to the braking arm. Lift the front protrusion 31r of 31. Then, as shown in FIG. 3, the braking roller 33 is lifted, and the outer peripheral surface (braking surface) 33b at the lower part thereof is separated upward from the terminal carrier (not shown), so that the braking force is not applied to the chain terminal RT (braking) Open state). In this state, the chain terminal RT is pulled out and inserted into the applicator AP, and the position is adjusted. In this brake released state, the disc spring 235 sandwiched between the lower side of the head 233b of the bolt 233 and the braking arm 31 is slightly compressed.

  Next, a second embodiment of the present invention will be described with reference to FIGS. 4 and 5, the terminal feed guide 213 is not shown. In these drawings, the parts denoted by the same reference numerals as those in FIGS. 11 to 12 and FIGS. 1 to 3 essentially indicate the same parts and members. Detailed descriptions of these parts are omitted. The meaning of each direction indicated by an arrow in each figure is the same as that in the above figure.

  Characteristic portions in the second embodiment are the braking roller 53 and the braking frame 51 of the chain terminal RT in the braking mechanism 50 of the applicator. The roller 53 is pressed against the carrier part C of the chain terminal RT. The braking frame 51 accommodates a spring 61 that biases the roller 53 so as to be extendable and contractible.

Details of the terminal braking mechanism 50 of the second embodiment will be described. First, the detailed structure of each part of the braking frame 51 will be described. As shown in FIG. 5, the braking frame 51 includes an upper part 51c to which the rotation center shaft 55 of the roller 53 is attached, a lower part 51s serving as a biasing spring receiver, and a back part 51h that connects both parts 51c and 51s. The upper part 51c of the braking frame 51 is a slightly thick rectangular block. As shown in FIG. 5, a female screw hole (not labeled) through which the roller central shaft 55 passes is formed in the upper part 51c in the front and back direction. The lower part on the near side of the upper part 51c is connected to the back part 51h.

  The back portion 51h is a plate-like portion that spreads up, down, left and right, as shown in FIG. In the center of the back portion 51h, a cam hole 51p (described later) that opens in an oval shape (the left and right sides are semicircular and the central upper and lower sides are parallel) is opened. A lower part 51s is connected to the lower side of the back part 51h so as to project to the back side. The lower portion 51s has a flat plate shape that extends laterally as a whole.

Two urging springs (coil springs) 61 are mounted on the upper surface of the lower portion 51s of the braking frame 51 so as to expand and contract in the vertical direction. 4, 6 and 7, the biasing spring 61 is sandwiched between the lower part 51s of the braking frame 51 and the plate 215, and biases the entire braking frame 51 downward. Note that “upper and lower” here is based on the assumption that the chain terminal RT is fed while sliding on the upper surface of the plate 215, and does not strictly indicate the direction of gravity of the earth.

  In the lower half of the center hole of the two urging springs (coil springs) 61, a center shaft (bolt) 63 penetrates the frame lower part 51s and enters from below. The central shaft 63 is screwed into a female screw hole (not shown) in the lower part 51s of the braking frame 51 and fixed.

  As shown in FIGS. 6A and 7A, the braking frame 51 is incorporated in the front end 215z of the plate 215. That is, the side cross section of the braking frame 51 is U-shaped, and is attached so that the plate end 215z is sandwiched between the upper part 51c and the lower part 51s. In this state, the upper surface of the coil spring 61 hits the lower surface 215x of the plate 215 (see also FIG. 4) and pushes the plate 215. However, since the plate 215 is fixed to the base 113 and does not move, the coil spring 61 is eventually biased in the direction of lowering the braking frame 51.

  The braking frame 51 is attached to the plate 215 with attachment bolts 65 (however, it can move up and down). That is, as shown in FIGS. 6C and 7C, the upstream portion of the lower portion 51s of the braking frame 51 is a bolt through portion 51k, and a bolt through hole 51m extending vertically is provided there. is open. A mounting bolt 65 passes through the bolt through hole 51m. On the other hand, a female screw hole 215w into which the mounting bolt 65 is screwed is formed in the plate 215 above the bolt penetrating portion 51k. Further, the terminal feed guide 213 and the guide plate 214 thereabove are also provided with bolt through holes 213x and 214x.

  The mounting bolt 65 passes through these holes and is locked with a nut 67 on the upper surface of the terminal feed guide 213. Eventually, the mounting bolt 65 is fixed to the plate 215 and the terminal feed guide 213, but the braking frame 51 is slightly slidable with respect to the mounting bolt 65. However, if the lower part 51s of the braking frame hits the head 65v at the lower end of the mounting bolt 65, it cannot move any further. By adjusting the position of the mounting bolt 65 with respect to the plate 215 and the like, the carrier C pressing strength of the braking roller 53 in the brake ON state (FIG. 7) can be adjusted.

  As shown in FIG. 5 and FIGS. 6 (A) and 7 (A), the eccentric cam 57 has a disk-shaped disk portion 57b and a cam portion 57f that protrudes from the central portion on the back side. The outer periphery of the cam portion 57f is a partially polygonal circumferential surface including a plurality of flattened surfaces. A shaft hole 57k (FIG. 5) is opened in the eccentric cam 57 at a position displaced from the center of the disk portion 57. A rotation shaft 59 passes through the shaft hole 57k. The rotary shaft 59 is fixed by being screwed into a female screw hole 215y formed on the end surface of the front side portion 215z of the plate 215 shown in FIG. A rotary knob 58 is inserted and fixed at one place on the outer peripheral surface of the disk portion 57. By operating this knob, the eccentric cam 57 can be rotated around the rotation shaft 59.

  The cam portion 57f of the eccentric cam 57 is fitted in the cam hole 51p of the brake frame 51 as shown in FIGS. 6 (A) and 7 (A). As shown in FIG. 5B, the cam portion 57f of the eccentric cam 57 includes a cam surface 57f1 (upward in FIG. 6) near the rotation center and a cam surface 57f2 far from the rotation center. (FIG. 7B) is formed. By turning the knob 58 described above, as described below, a brake ON state in which the cam surface 57f1 close to the rotation center is positioned and the brake frame 51 is lowered, and a cam surface 57f2 far from the rotation center is raised It is possible to switch between a brake release state in which the brake frame 51 is lifted by positioning it.

  That is, in the brake ON state shown in FIG. 6, the knob 58 is in a substantially horizontal position, and the cam surface 57f1 (FIG. 6 (B)) close to the rotation center (low height) is positioned upward. ing. The braking frame 51 is pushed down by the biasing spring 61 so that the lower outer peripheral surface of the braking roller 53 is in contact with the upper surface of the terminal carrier C. Accordingly, braking (braking) is applied to the chain terminal RT.

On the other hand, in the brake disengaged state shown in FIG. 7, the knob 58 is in the downward position, and the cam surface 57f2 that is far from the rotation center (high in height) is positioned upward. The braking frame 51 is lifted with the inner surface of the cam hole 51p in contact with the cam surface 57f2 (the biasing spring 61 is contracted). In this state, the braking roller 53 fixed to the braking frame 51 is lifted, and a gap S is left between the lower outer peripheral surface of the roller 53 and the upper surface of the terminal carrier C. Therefore, the chain terminal RT is not braked (brake). In this brake released state, a gap S is also provided between the head 65v of the braking frame mounting bolt 65 and the lower surface of the bolt penetration portion 51k of the braking frame 51.

Next, a technique for improving the performance of centering the center of the electric wire to the center of the crimping machine or the terminal in the terminal crimping machine will be described.
FIG. 8 is a diagram illustrating an embodiment in which the centering performance of the electric wire is improved. (A) is a side view schematically showing the configuration of the main part of the crimper 315, the anvil 319, the slide cutter 321, and the wire insertion device 350. FIG. (B) is a block diagram showing a configuration of a control system.
FIG. 9 is a front view showing the form of the inscrimper, slide cutter, etc. in the embodiment of FIG.
FIG. 10 is a timing chart for explaining the operation sequence of the apparatus shown in FIGS.

The crimping machine 300 according to this embodiment includes the following units.
Terminal feed mechanism: There is no particular limitation as long as it has a chain terminal RT feed function that is substantially the same as the terminal feed mechanism 200 shown in FIG.
Anvils 319 and 318; lower molds for crimping (caulking) the barrel Tb of the terminal T (see FIG. 13) to the wire ends WI and WC. In this example, an inner anvil 319 that crimps an inner barrel Ib that is crimped to the inner portion WI at the end of the electric wire and a wire anvil 318 that caulks the wire barrel Wb that is crimped to the core WC at the end of the electric wire are provided.

Crimpers 315 and 316; upper molds that face the anvil above and below and are driven downward to crimp the barrel Tb of the terminal T (see FIG. 13) to the wire ends WI and WC. In this example, an inscrimper 315 for caulking the inner barrel Ib and a wire anvil 318 for caulking the wire barrel Wb are provided.
The crimper driving means 101 and 102; the crimpers 315 and 316 are driven up and down (see FIG. 11, paragraph 0011).

Wire end portion positioning mechanism: An end portion WI / WC of a wire to be crimped to a terminal T is inserted into the center of a crimping machine and positioned, and includes the following wire insertion device 350 and wire guide member 321. .
Electric wire insertion device 350: The end portions WI and WC of the electric wire W can be moved and positioned in the electric wire longitudinal direction and the crimper driving direction (vertical direction). Details will be described later.
Guide member 321; It has a guide recess 321p that welcomes the end WI of the peeled wire at a position that matches the center of the crimping machine. Details will be described later.

The electric wire insertion device 350 will be described with reference to FIG. In the upper part on the back side, which is the left side of the figure, the above-described crimpers 315 and 316 and the cut-off punch 313 (described later) on the front side thereof are shown, and below them, a wire insertion space WS is separated, Anvils 319 and 318 and a slide cutter 321 (described later) on the front side thereof are shown. FIG. 8 shows a state in which the wire end portions WI / WC are inserted into the wire insertion space WS by the wire insertion device 350 from the right side (front side) of the drawing to the left side (back side) of the drawing.

  The wire insertion device 350 includes, from top to bottom, a clamp 351 that grips the wire W, an insertion guide 355 that slides the clamp 351 in the frontward direction, a lifting guide 361 that slides the clamp 351 in the up-down direction, and the like. The clamp 351 has a pair of clamp pieces 351b that are close to and away from each other in the direction perpendicular to the drawing sheet, and an opening / closing drive actuator (such as an air cylinder) 352.

  An opening / closing actuator 352 of the clamp 351 is mounted on a slider 353 that slides in the forward direction. The slider 353 is slid in the forward direction by an insertion actuator (such as a ball screw / nut) 357 along an insertion guide 355 extending in the forward direction. The insertion guide 355 and the actuator 357 are slid in the vertical direction by a lift actuator (ball screw / nut, etc.) 363 along a lift guide 361 extending vertically.

  FIG. 8B is a block diagram showing the configuration of the control system of the crimping machine 300 of this embodiment. In this embodiment, the ram lifting mechanism 301 that lifts and lowers the crimpers 315 and 316 and the wire insertion device 350 are controlled by the control unit 390 so as to be interlocked. In addition, the actuator of the ram lifting mechanism 301 and the actuator of the electric wire insertion device 350 (particularly the lifting actuator 363) must be capable of arbitrarily and precisely controlling the position, speed, and interlocking timing by a so-called servo mechanism. Is preferred.

The basic operation of the wire insertion device 350 is as follows.
Wire receiver: When the wire insertion clamp 351 is moved to the near side (right side of FIG. 8) from the position of FIG. 8 (away from the crimper anvil), the peeled wire end WI from which the terminal is to be crimped・ Receive WC.
Electric wire insertion: With the crimpers 315 and 316 and the cut-off punch 313 raised, the clamp 351 slides to the back (left side in FIG. 8) and inserts the wire end WI / WC into the wire insertion space WS ( The state in FIG. 8 and WIH0 in FIG.

Lowering for the wire end centering; from the state of FIG. 8, the clamp 351 is lowered, and the wire end (instrument) WI is dropped into the guide recess 321p of the slide cutter (guide member) 321 (WIH1 in FIG. 9) . This operation is an essential part of this embodiment, and will be described later in detail with reference to FIG.
After crimping the terminal, lift and pull out; after the crimpers 315 and 316 descend and crimp the terminal, the electric wire W is lifted and pulled out to the near side. Thereafter, the clamp 351 is opened, and the electric wire W after terminal crimping is removed (dispensed) by other means.

  With reference to FIG. 9, the details of the operation of centering the electric wire by dropping the electric wire end (instrument) WI into the guide recess 321p of the slide cutter (guide member) 321 will be described. In the upper part of FIG. 9, a cut-off punch 313 and an inscrimper 315 are shown, and below that, a slide cutter 321 and a chain terminal RT are shown across a wire insertion space WS. In FIG. 9, the wire crimper 316 and the anvils 319 and 318 are hidden or omitted.

  As shown in FIG. 8, the cut-off punch 313 is a component arranged on the front side of the inscrimper 315. The cut-off punch 313 is driven up and down by the ram lifting mechanism 301 (101) and the shank 105 (see FIG. 11) together with the crimpers 315 and 316. As shown in FIG. 9, the cut-off punch 313 has a punch portion 313r that projects to the lower left. With this punch portion 313r, a slide cutter 321 described below is pushed down to cut the carrier C of the chain terminal RT. The carrier C of the chain terminal RT is guided into the slide cutter 321 along a carrier guide groove 321g of the slide cutter 321 described later.

  The incrimper 315 is a relatively thin plate-shaped member made of tool steel, and has a caulking recess 315p at the center of the lower end. The caulking concave portion 315p is a groove that extends vertically and extends slightly downward. The uppermost portion is an upper bottom portion 315r that caulks the inner barrel Ib (FIG. 13) of the terminal. Below that is a mouth opening 315x that opens wide from a portion 315t that gradually increases in width toward the bottom. In the middle of the mouth opening 315x, there is a portion 315V where the crimper hits the upper end outside the barrel Ib of the terminal T (the terminal deformation starts thereafter).

As shown in FIG. 8, the slide cutter 321 is disposed on the front side of the inner anvil 319. This slide cutter 321 is a member mainly composed of a thick box-shaped central body 321s as a whole, and has the following parts as shown in FIG.
Punch contact portion 321d; a slightly raised portion in the upper left part of the figure. The lower surface of the punch portion 313r of the above-described cut-off punch 313 hits the upper surface 321b.

Guide concave portion 321p: a V-shaped groove that is carved downward and engraved downward in the left and right center portion (crimping machine center) of the upper surface 321k of the slide cutter 321. The guide recess 321p will be described in detail later.
Carrier guide groove 321g; a groove formed on the back side of slide cutter 321 (back side of the paper surface of FIG. 9) with a wide opening on the left side. Along the groove 321g, the carrier C of the chain terminal RT is guided into the slide cutter 321 and discharged to the right side (downstream) in the figure. On the way, the slide cutter 321 is pushed down by the aforementioned cut-off punch 313, and the terminal tab Tt (see FIG. 13) is cut.

Feet 321x, spring holes 321y; feet 321x protrude from the left and right sides of the central body 321s of the slide cutter 321. A spring hole 321y whose lower end is opened is formed in the foot 321x, and a coil spring (not shown) for urging the slide cutter 321 upward is disposed therein. When the slide cutter 321 is pushed down by the cut-off punch 313, and when the crimpers 315 and 316 are lowered and the terminal T is crimped to the electric wire W, the spring is compressed and the slide cutter 321 is lowered.

  Next, the detailed configuration and operation of the guide recess 321p will be described. In the middle of the guide recess 321p, which is a V-shaped groove spreading upward, is narrower than the cross section perpendicular to the longitudinal direction of the end WI of the electric wire, and both of the cross sections of the wire end WIH1 dropped into the recess 321p. There is a center ring abutting portion 321q with which the side abuts. The left and right contact portions 321q are portions that are slightly smaller in width than the diameter of the electric wire inner portion WI. Each of the contact portions 321q comes into contact with the left and right sides slightly below the center of the outer periphery of the dropped wire inner portion WI, so that the center of the wire inner portion WI becomes closer to the left and right contact portions 321q. Centered in the center, ie the center of the crimping machine.

  When the electric wire is centered, when viewed in the electric wire insertion direction, the guide recess 321p of the slide cutter 321 exists inside the inner barrel portion Ib of the terminal T positioned at the terminal crimping machine center. For this reason, the wire inner part WI is positioned at the center of the inner recess without contacting the terminal barrel part Ib in the dropping stage. Thereby, it is possible to reliably prevent defects such that the end portion of the electric wire protrudes from the terminal barrel portion Tb, and it is possible to provide a terminal crimped electric wire having an excellent crimping configuration.

  Next, the operation of the crimping machine of this embodiment will be described with reference to FIG. In the figure, the vertical line on the left shows the movement of the crimper's crimper and cut-off punch (here, the lowering operation of the ram lifting mechanism 301 called a press), and H0 to H4 are the names of their lifting positions (heights). . The vertical line on the right side shows the movement of the electric wire W (the lowering operation of the clamp 351 of the electric wire insertion device 350). h0 to h2 are names of the lift positions (heights). This is a setting in which time has passed in the downward direction of the figure (no quantitativeness). The explanation written between the two vertical lines is the operation performed at that time timing.

The top H0 · h0 in FIG. 10 is the height when the electric wire is inserted. H0 is basically the upper limit of the press. h0 is the state of FIG.
H1 · h1 is a height obtained by centering the electric wire W by dropping it into the guide recess 321p of the slide cutter 321 (electric wire WIH1 in FIG. 9).
For H2, the crimper 315 descends and the crimping recess 315p portion 315V (see FIG. 9) of the crimper 315 hits the outer side of the upper end of the barrel Ib of the terminal T, and the terminal is deformed while centering the terminal barrel Ib. It is the height that began to let me. At this time, the electric wire remains at the height h1.

H3 is a press height at which the cut-off punch 313 (see FIG. 9) is lowered and the slide cutter 321 starts to be pushed down. At this time, the electric wire remains at the height h1. Thereafter, the tab Tt of the chain terminal RT is cut, and the crimping (crushing) of the terminal T proceeds.
H4 · h2 is the height of the press and the electric wire where the terminal crimping is completed. During the wire height h1 → h2, the clamp 351 of the wire insertion device 350 descends in synchronization with the press. As a result, the end portion of the electric wire W is not subjected to an action such as bending, and a terminal crimped electric wire having an appropriate form can be manufactured.

  The present invention is not limited to the above-described embodiments, and various modifications and additions are possible. The braking method of the present invention can also be applied to a mechanism that applies tension to a wire, paper, film, tape, or the like.

Claims (11)

A terminal feed mechanism (200) for sending a chain terminal (RT) connected to a number of individual terminals (T);
A braking mechanism (30, 50) for braking the feed of the chain terminal (RT);
An applicator (AP) comprising a crimper (115) and an anvil (119) for crimping the barrel (Tb) of the terminal (T) to the end (WI / WC) of the peeled electric wire,
The braking mechanism (30, 50)
Rollers (33, 53) pressed against the carrier part (C) of the chain terminal (RT);
A rotation center axis (35, 55) of the roller (33, 53);
A pressing mechanism (31, 237, 51, 61) for applying a pressing force to the rollers (33, 53) via the rotation center shaft (35, 55);
An applicator for a terminal crimping machine.   The pressing mechanism includes a braking arm (31) having the rotation center shaft (35) attached to one end and a biasing member (237/233) attached to the other end. Item 1. The applicator according to Item 1. The biasing member is
A disc spring (237),
A spring deflection amount defining member (238) for setting the compression deflection of the disc spring to a normal state;
The applicator according to claim 2, comprising: A terminal feed mechanism (200) for sending a chain terminal (RT) connected to a number of individual terminals (T), a braking mechanism (50) for braking the feed of the chain terminal (RT),
An applicator (AP) comprising a crimper (115) and an anvil (119) for crimping the barrel (Tb) of the terminal (T) to the end (WI / WC) of the peeled electric wire,
The terminal feed mechanism (200) includes a plate (215) on which the chain terminal (RT) is slid,
The braking mechanism (50)
A roller (53) pressed against the carrier part (C) of the chain terminal (RT);
A rotation center axis (55) of the roller (53);
The plate (215) has an upper part (51c) to which the rotation center shaft (55) is attached, a lower part (51s) serving as a biasing spring receiver, and a back part (51h) connecting both parts (51c and 51s). A braking frame (51) incorporated in the side end (215z) of
A spring (61) interposed between the lower part (51s) and the plate (215) for biasing the braking frame (51) downward;
An applicator comprising: A terminal feed mechanism (200) for sending a chain terminal (RT) in which a number of individual terminals (T) are connected by a carrier (C);
A crimper (315/316) and an anvil (319/318) for crimping the barrel (Tb) of the terminal (T) to the end (WI / WC) of the peeled electric wire;
Crimper driving means (101/102) for driving the crimper (315/316),
A wire end positioning mechanism (350, 321p) for positioning the end (WI / WC) of the wire to be crimped to the terminal (T) at the center of the crimping machine;
A terminal crimping machine comprising:
The wire end positioning mechanism is
An electric wire insertion mechanism (350) capable of positioning an end portion (WI / WC) of the electric wire in a longitudinal direction of the electric wire and the driving direction of the crimper;
A guide member (321) having a guide recess (321p) that welcomes the end portion (WI) of the peeled wire at a position that matches the center of the crimping machine;
The wire insertion mechanism (350) inserts the end (WI) of the peeled wire into a position above the guide recess (321p), and then touches the guide recess (321p). Terminal crimping, characterized in that the end (WI) of the wire is centered at the center of the crimping machine by moving and bringing the end (WI) of the wire into contact with the guide recess (321p) Machine (300).   Center ring contact where the guide recess (321p) is narrower than the cross section perpendicular to the longitudinal direction of the end portion (WI) of the electric wire and both sides of the cross section of the end portion of the electric wire moved downward The terminal crimping machine (300) according to claim 5, characterized in that the terminal crimping machine (300) has an upwardly extending V shape having a portion (321q).   When centering the end portion (WI) of the electric wire, the guide recess (321p) is more than the barrel portion (Ib) of the terminal (T) positioned at the center of the terminal crimping machine as viewed in the electric wire insertion direction. The terminal crimping machine (300) according to claim 6, wherein the terminal crimping machine (300) exists inside. A terminal feed mechanism (200) for sending a chain terminal (RT) connected to a number of individual terminals (T), a brake mechanism (30) for braking the feed of the chain terminal (RT),
An applicator (AP) comprising a crimper (115) and an anvil (119) for crimping the barrel portion (Tb) of the terminal (T) to an end portion (WI / WC) of the peeled wire,
The braking mechanism (30)
A braking member (31 · 51) having a braking surface (33b, 53, 231j) pressed against the carrier portion (C) of the chain terminal (RT) and provided with a biasing portion (31d · 51s · 61)・ 231)
A biasing member (237 · 61) for biasing the braking member,
The biasing member is
Spring (237 ・ 61),
A spring deflection amount defining member for setting the compression deflection of the spring to a normal state;
An applicator comprising: Positioning while feeding a chain terminal (RT) connected to a number of individual terminals (T), and crimping the barrel part (Tb) of the terminal (T) to the end part (WI / WC) of the peeled wire Because
The carrier part (C) of the chain terminal (RT) is pressed by rollers (33, 53), and at this time, the rollers (33, 53) are rotated via the rotation center axes (35, 55) of the rollers (33, 53). 53). A terminal crimping method characterized by applying a pressing force to 53). Positioning while feeding a chain terminal (RT) connected to a number of individual terminals (T), and crimping the barrel part (Tb) of the terminal (T) to the end part (WI / WC) of the peeled wire Because
Provided with a guide recess (321p) that greets the end of the peeled wire (WI) at a position that matches the center of the crimping machine,
The end portion (WI) of the electric wire is inserted into a position above the guide recess (321p), and then moved downward so as to contact the guide recess (321p). The terminal crimping method is characterized by centering the end portion (WI) of the electric wire at the center of the crimping machine by contacting the guide recess (321p). Positioning while feeding a chain terminal (RT) connected to a number of individual terminals (T), and crimping the barrel (Tb) of the terminal (T) to the end of the peeled wire (WI / WC) When manufacturing terminal crimping electric wires by
The manufacturing method of the terminal crimping electric wire characterized by using the terminal crimping method of Claim 9 or 10.

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