JP2013149522A - Terminal crimping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for completing suitable crimping processing on a terminal.SOLUTION: A terminal crimping device 1 includes: a crimping section 2 which crimps a terminal 91 to an electric wire by swaging one terminal 91 among a plurality of terminals 91 connected to a continuous terminal 9 with a die; a sending-out section 5 which sends the continuous terminal 9 by one terminal 91 toward the crimping section 2 by moving a sending claw 51 hooked to a sending hole 93 of the continuous terminal 9 placed on a stage 41 associatively with the crimping operation of the crimping section 2; and a one-side brake section 7 which brakes a movement of the continuous terminal 9 in a return direction without braking a movement in a sending-out direction.

Description

  The present invention relates to a terminal crimping apparatus that continuously crimps a terminal to an end of an electric wire.

  A terminal crimping device (terminal crimping applicator) is known as a device for continuously crimping a terminal to an end of an electric wire. In general, the terminal crimping apparatus is moved along a direction orthogonal to the delivery path, and a delivery section that feeds successive terminals (strip-shaped members in which a plurality of terminals are connected) one after another along a delivery path. And a crimping part that crimps the terminal to the electric wire by crimping the terminal, and these parts are interlocked to perform the crimping process continuously (for example, see Patent Document 1). .

  In the terminal crimping device, the continuous terminal is fed, for example, by hooking a claw-shaped member (feed claw) into a feed hole formed at a constant pitch on the continuous terminal, This is done by moving along the delivery direction.

  However, in this mode, when the feed claw stops, the continuous terminal is slightly displaced in the feed direction due to inertial movement (overfeed), or when the feed claw is returned, it follows the movement of the feed claw. As a result, the continuous terminal is likely to be displaced in the direction opposite to the sending direction (return deviation). Therefore, in order to suppress the excessive feeding and return deviation and stably feed the continuous terminal by the feeding claw, the brake member prevents the continuous terminal from moving in the sending direction and the returning direction by holding the continuous terminal with a constant pressure. Is often provided.

Japanese Patent No. 2870362

  In the above-described delivery mode using the feed claw and the brake member, it is difficult to control the feed distance of the continuous terminal with high accuracy, although it is possible to suppress a great overfeed and a great return deviation. For this reason, the terminal to be crimped is often placed at a position slightly displaced from the center of the mold.

  Here, if the terminal is crimped at a position slightly shifted from the center of the mold, an appropriate crimping process is not performed on the terminal. FIG. 16 schematically shows an example of a cross-sectional shape of a terminal crimped at a position shifted from the center of the mold. As illustrated here, when crimped at a position slightly deviated from the center of the mold, the barrel portion of the terminal becomes asymmetrical, and the terminal is not deformed into an ideal shape. As a result, there is a high possibility that inconveniences such as crimping failure and energization failure will occur.

  This invention is made | formed in view of said subject, and it aims at providing the technique which can perform an appropriate crimping | compression-bonding process with respect to a terminal.

  A 1st aspect is a terminal crimping | compression-bonding apparatus, Comprising: The crimping | compression-bonding part which crimps | bonds the said terminal to an electric wire by crimping one terminal of the several terminals connected with a continuous terminal with a metal mold | die, and the said crimping | compression-bonding In conjunction with the crimping operation in the part, the feed terminal hooked on the feed hole of the continuous terminal placed on the stage is moved to feed the continuous terminal one by one toward the crimp part. A delivery unit; and a one-side braking unit that brakes movement in a return direction opposite to the delivery direction without braking the movement of the continuous terminal in the delivery direction.

  A second aspect is a terminal crimping apparatus according to the first aspect, wherein the one-side braking portion biases the main body portion disposed opposite to the continuous terminal, and the main body portion. An urging member that presses against the continuous terminal, and the main body includes a pressing blade having a V-shaped cross section provided on a surface of the main body facing the continuous terminal. The blade is arranged such that the V-shaped top extends in a direction orthogonal to the delivery direction, and the surface arranged on the downstream side of the delivery direction among the both slopes sandwiching the top is the A surface that is perpendicular to the continuous terminal and is disposed on the upstream side in the delivery direction is pressed against the continuous terminal in such a posture as to be inclined with respect to the continuous terminal.

  A 3rd aspect is a terminal crimping apparatus which concerns on a 2nd aspect, Comprising: The said main-body part is arrange | positioned in the upstream of the said sending direction rather than the virtual surface which passes along the surface arrange | positioned in the said downstream of the said press blade. It is pivotally supported around a swing shaft extending in parallel with the extending direction of the top portion.

  A 4th aspect is a terminal crimping apparatus which concerns on a 3rd aspect, Comprising: The surface at the side facing the said continuous terminal in the said main-body part contains an arc-shaped surface area | region, and the said main-body part is an arc of the said arc-shaped surface area | region. It arrange | positions with the attitude | position which puts a direction along the said delivery direction, the said pressing blade is provided with two or more, The said several pressing blade is arranged in the said arcuate surface area | region along the said arc direction.

  A fifth aspect is a terminal crimping apparatus according to the fourth aspect, wherein the tip positions of the plurality of pressing blades are arranged on the circumference of a virtual circle, and The surface arranged on the downstream side in the sending direction is a surface along the radial direction of the virtual circle.

  A sixth aspect is a terminal crimping apparatus according to any one of the third to fifth aspects, wherein the one-side braking portion is positioned upstream of the swing shaft in the delivery direction in the main body portion. And a release lever attached to the.

  A seventh aspect is a terminal crimping apparatus according to any one of the second to sixth aspects, wherein each of both end portions along the extending direction of the top portion of the pressing blade has a rounded shape.

  An eighth aspect is a terminal crimping apparatus according to any one of the first to seventh aspects, wherein in a state where the feed claw is hooked on the feed hole, the tip of the feed claw is The entire width along the delivery direction is closed.

  A ninth aspect is a terminal crimping apparatus according to any one of the first to eighth aspects, wherein the feeding claw is between the time when the terminal is restrained by the mold and the time when the terminal is crimped. Is not in contact with the continuous terminal.

  According to the first aspect, the one-side braking unit brakes the movement in the return direction without braking the movement of the continuous terminal in the sending direction. According to this configuration, even if the terminal to be crimped is sent to a position shifted upstream in the delivery direction from the ideal crimping position with respect to the mold, the terminal is guided to the molding surface of the mold. Naturally moves to the ideal crimping position. Therefore, even if the terminal to be crimped is sent to a position upstream of the ideal crimping position in the delivery direction, the terminal is finally crimped at the ideal crimping position, and appropriate crimping is performed. Processing is performed.

  According to the second aspect, the pressing blade has a surface arranged on the downstream side in the delivery direction perpendicular to the continuous terminal, and a surface arranged on the upstream side in the delivery direction is inclined with respect to the continuous terminal. In such a posture, it is pressed against the continuous terminal, so that only the movement of the continuous terminal in the return direction is braked. According to this configuration, it is possible to brake the movement in the return direction without braking the movement of the continuous terminal in the sending direction with a simple configuration.

  According to the third aspect, the main body is pivotally supported so as to be swingable around the swing shaft disposed upstream of the virtual surface passing through the surface disposed downstream of the pressing blade in the delivery direction. ing. According to this configuration, the movement of the continuous terminal in the sending direction can be smoothly performed while reliably braking the movement of the continuous terminal in the return direction.

  According to the 4th aspect, a some press blade is arranged and provided along the arc direction in the arc-shaped surface area | region of a main-body part. According to this structure, it can respond to the various continuous terminals from which thickness differs. That is, for each of the various continuous terminals having different thicknesses, the movement in the return direction can be braked without braking the movement in the delivery direction.

  According to the fifth aspect, the tip positions of the plurality of pressing blades are arranged on the circumference of the virtual circle, and the surface disposed on the downstream side in the delivery direction of each pressing blade is in the radial direction of the virtual circle. It is considered as a surface along. According to this configuration, it is possible to reliably brake the movement in the return direction without braking the movement in the delivery direction for each of the various continuous terminals having different thicknesses.

  According to the sixth aspect, the release lever can be operated to swing the main body in a direction in which the tip of the pressing blade is separated from the continuous terminal. Therefore, braking of the one-side brake part can be easily released as necessary.

  According to the 7th aspect, when the top part of a press blade is arrange | positioned so that it may extend in the direction orthogonal to a sending direction, each of the both ends along the extension direction of the said top part are made into a rounded round shape. . According to this configuration, a situation in which the continuous terminal is scraped at the corner of the top of the pressing blade pressed against the continuous terminal hardly occurs, and generation of particles such as shavings is suppressed.

  According to the eighth aspect, in the state where the feed claw is hooked in the feed hole, the tip of the feed claw is in a state of covering the entire width of the feed hole along the delivery direction. According to this configuration, when the feed claw that has moved in the state of being caught in the feed hole stops, it is difficult to cause a situation in which the continuous terminal is slightly displaced in the delivery direction due to inertial movement. That is, it is difficult for the terminal to be fed too much.

  According to the ninth aspect, the feed claw is in a non-contact state with the continuous terminal after the terminal is restrained by the mold in the crimping portion and after being crimped. According to this configuration, the movement of the terminal to be crimped in the delivery direction is completely free from the time when the terminal is restrained to the mold until it is crimped. The terminal sent to the upstream side in the sending direction can move particularly smoothly to the ideal crimping position.

It is a top view of a continuous terminal. It is a schematic front view of a terminal crimping device. It is a partially exploded view of a route defining portion and a one-side brake portion. It is a figure which shows typically a mode that a feeding nail is sending out a continuous terminal. It is a figure for demonstrating the appropriate range of the feed position of a terminal. It is a side view which shows typically the whole structure of the one side brake part. It is a side view which shows the structure of a main-body part typically. It is the figure which looked at the main-body part from the arrow K direction of FIG. It is a side view which shows typically the main-body part of the rock | fluctuated state. It is a figure which shows typically a mode when the feeding nail is moved to the sending direction. It is a figure which shows typically a mode at the time of the feed nail being moved in the return direction. It is a figure which shows typically a mode that the terminal is restrained by the crimper. It is a figure which shows a mode when a crimping | compression-bonding process is performed with respect to a terminal. It is a figure which shows typically the cross-sectional shape of the terminal to which the crimping process was given by the terminal crimping apparatus. It is a side view which shows typically the structure of the main-body part which concerns on a modification. It is a figure which shows an example of the cross-sectional shape of the terminal crimped in the position which shifted | deviated from the center of the metal mold | die.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.

<1. Continuous terminal 9>
First, the continuous terminal 9 targeted by the terminal crimping apparatus 1 will be described with reference to FIG. FIG. 1 is a plan view showing the continuous terminal 9.

  The continuous terminal 9 is a band-shaped member in which a plurality of terminals 91 are connected. Specifically, a plurality of terminals 91 are chained in parallel at equal intervals on one side of a band-shaped chain band 92. . In the chain band 92, feed holes 93 are formed at equal intervals corresponding to the terminals 91. A base portion (barrel portion) 911 of each terminal 91 is formed so as to be open in a substantially U-shaped cross section so that it can be crimped to the end portion of the electric wire.

<2. Terminal crimping device 1>
The configuration of the terminal crimping device 1 will be described with reference to FIGS. FIG. 2 is a schematic front view of the terminal crimping apparatus 1. FIG. 3 is a partially exploded view of the route defining portion 4 and the one-side brake portion 7. 2 and 3 and some drawings to be referred to later appropriately include an XYZ coordinate system in which the sending direction of the continuous terminal 9 coincides with the + X direction and the upper vertical direction coincides with the + Z direction. It is attached.

  The terminal crimping apparatus 1 includes a crimping part 2 that crimps and fixes an end of an electric wire to a terminal 91 (specifically, a barrel part 911 of the terminal 91) connected to the continuous terminal 9, and a long length wound in a reel shape. The continuous terminal 9 is fed out and fed to the crimping portion 2 and the feeding portion 3 is fed to the crimping portion 2. More specifically, the feeding unit 3 includes a path defining unit 4 that regulates the delivery path of the continuous terminal 9, a delivery unit 5 that delivers the continuous terminal 9 along the delivery path, and the movement and delivery of the crimping unit 2. It mainly includes an interlocking mechanism 6 that interlocks the movement of the part 5 and a one-side brake part 7 that is a mechanism for stabilizing the delivery of the continuous terminal 9. Hereinafter, the structure of each part is demonstrated concretely.

<2-1. Crimp part 2>
The crimping | compression-bonding part 2 crimps | bonds the terminal 91 to an electric wire by crimping one terminal 91 of the some terminals 91 connected with the continuous terminal 9 with a metal mold | die. The crimping portion 2 mainly includes a movable support frame 21, a shank portion 22, an upper die (crimper) 23 for crimping, and a lower die (anvil) 24 for crimping. In addition, the crimp portion 2 includes a cutter for cutting the terminal 91 from the chain band 92.

  The movable support frame 21 includes a plate portion 211 erected in a substantially vertical posture with respect to the plate-like base 210, and a pair of guide frame pieces 212 fixed to one main surface (front side) of the plate portion 211, 212. The pair of guide frame pieces 212 and 212 are fixed in a substantially vertical posture with respect to the base 210 and in a parallel posture with a predetermined interval therebetween. Moreover, the lower end part of a pair of guide frame piece 212,212 is spaced apart from the upper surface of the base 210, and the crimping | compression-bonding operation | work using the crimper 23 and the anvil 24 is performed between these.

  The shank portion 22 is formed in a substantially rectangular parallelepiped shape that can be disposed between the pair of guide frame pieces 212 and 212, and the width dimension thereof is narrower than the interval dimension between the pair of guide frame pieces 212 and 212 ( Here, it is formed slightly narrow). The shank portion 22 is guided between the pair of guide frame pieces 212 and 212 in a fixed posture so as to be movable up and down between the raised position and the lowered position. Further, an elevating drive mechanism unit 200 configured by an actuator such as an air cylinder is disposed above the shank unit 22, and the shank unit 22 is driven by the driving force of the elevating drive mechanism unit 200 via the rod unit 201. In response, it moves up and down.

  The crimper 23 is attached to the lower part of the shank portion 22. The anvil 24 is attached to the lower surface of the shank portion 22 (that is, the lower position facing the crimper 23) on the upper surface of the base 210 via the lower mold fixing portion 240.

  In the crimping | compression-bonding part 2 provided with said structure, when the shank part 22 is moved up and down, the crimper 23 attached to the shank part 22 is moved up and down. That is, the crimper 23 moves closer to and away from the anvil 24 as the shank portion 22 is driven up and down. When the shank portion 22 is lowered with the terminal 91 disposed on the anvil 24, the crimper 23 moves close to the anvil 24, and the terminal 91 disposed on the anvil 24 is moved between the crimper 23 and the anvil 24. The barrel portion 911 is crimped and crimped to the end of the electric wire. Along with this, the cutter may be configured to cut the terminal 91 from the chain band 92.

<2-2. Route defining unit 4>
The path defining unit 4 includes a long plate-like stage 41 extending toward the crimping unit 2. The upper surface of the stage 41 functions as a guide surface that guides the continuous terminal 9 to the crimping portion 2. That is, the continuous terminal 9 is placed on the stage 41 with the chain band 92 directed to the -Y side, and is driven toward the crimping unit 2 (that is, the sending direction (+ X) by receiving the driving of the sending unit 5 described later. Direction)).

  A long feed guide 42 extending along the X axis is provided at the end of the stage 41 on the −Y side. The feed guide 42 functions as a restricting member that guides the chain 92 of the continuous terminals 9 on the stage 41 and restricts the continuous terminals 9 from being displaced in the Y direction. That is, the continuous terminal 9 is sent out with the chain band 92 along the feed guide 42.

  Here, a feed claw 51 (described later) that is reciprocated along the X axis is disposed on the + Y side of the feed guide 42, that is, above the passage region of the chain band 92 on the stage 41. A groove 411 extending along the X axis is formed on the stage 41 at a position corresponding to the lower portion of the movable area of the feed claw 51. As will be apparent later, the groove 411 functions as a space for releasing the tip of the claw portion 512 inserted into the feed hole 93.

  In addition, an overhanging portion 421 that projects to the + Y side is formed on the + Y side wall of the feed guide 42. The overhanging portion 421 is disposed so as to extend to a portion corresponding to the vicinity of the end portion on the −X side in the movable region of the feeding claw 51. The projecting portion 421 functions as a separation wall for separating the feed claw 51 that has been moved to the vicinity of the end portion from the chain band 92. That is, the lower surface of the overhanging portion 421 extends substantially in parallel with the stage 41 while forming a gap through which the chain band 92 can pass with the stage 41, and the upper surface of the overhanging portion 421 moves in the -X direction. The inclined surface 420 is inclined obliquely upward. When the claw part 512 of the feed claw 51 moved in the −X direction reaches the vicinity of the −X side end part in the movable range, the claw part 512 is separated from the chain band 92 by sliding up the inclined surface 420. (See FIG. 12).

  Further, a notch portion 422 is formed on the feed guide 42 on the −X side from the position where the overhang portion 421 is formed. The notch 422 is provided with a one-side brake portion 7 (described later). When the support plate portion 71 of the one-side brake portion 7 is disposed in the notch portion 422, the main body portion 72 supported by the support plate portion 71 is connected to the + Y side of the feed guide 42, that is, the chain band on the stage 41. 92 is disposed above the passage area.

<2-3. Sending unit 5>
The sending unit 5 sends the continuous terminals 9 placed on the stage 41 toward the crimping unit 2 by one terminal 91 in conjunction with the crimping operation in the crimping unit 2. Specifically, the delivery unit 5 includes a feed claw 51, and the feed claw 51 is hooked on a feed hole 93 formed in the chain band 92 of the continuous terminal 9 in the delivery direction (+ X direction). The continuous terminal 9 is sent out toward the crimping part 2 by being moved.

  The feed claw 51 is a long member, and is disposed on the + Y side of the feed guide 42, that is, above the passage region of the chain band 92 on the stage 41 as described above. Specifically, the feed claw 51 is supported by a lower end portion of a swing member 61 (described later) via a shaft portion 511 so as to be swingable. A claw portion 512 is provided at one end of the feed claw 51. The claw portion 512 has a tapered shape whose length along the X-axis decreases as it goes to the tip, and the tip is caught by the feed hole 93 formed in the chain band 92 of the continuous terminal 9 on the stage 41. It is configured to be possible. More specifically, the tip portion of the claw part 512 is formed in a tapered shape in which the side on the + X side (downstream in the sending direction) is substantially vertical and the side on the −X side (upstream in the sending direction) is inclined. Has been. Therefore, the claw portion 512 is caught in the feed hole 93 only when the feed claw 51 moves in the delivery direction (the direction approaching the anvil 24 along the stage 41, + X direction), and the return direction opposite to the delivery direction. In the case of moving in the direction away from the anvil 24 along the stage 41 and in the −X direction, it slides on the chain band 92 and is not caught by the feed hole 93.

  A biasing member 52 is connected and fixed to the end of the feed claw 51 opposite to the side where the claw 512 is provided. The biasing member 52 is a coil spring here, and in an extended state, one end portion thereof is connected and fixed to the swinging member 61, and the other end portion is connected and fixed to the end portion of the feed claw 51. The urging member 52 urges the claw part 512 provided at one end of the feed claw 51 toward the stage 41. As a result, when the feed claw 51 moves in the delivery direction (+ X direction), the claw portion 512 is more reliably caught by the feed hole 93.

  As described above, the feed claw 51 is swingably supported on the lower end portion of the swing member 61 via the shaft portion 511. As will become apparent later, the swinging member 61 swings in the vertical plane in conjunction with the crimping operation in the crimping portion 2, and accordingly, the feed claw 51 moves in a predetermined movable range along the X axis. Move back and forth inside. Here, each time the lower end of the swinging member 61 is reciprocated once, the feeding claw 51 sends the continuous terminal 9 by one terminal 91 in the sending direction (+ X direction). That is, when the lower end portion of the swinging member 61 is moved in the + X direction, the claw portion 512 is caught in the feed hole 93 of the continuous band 9 of the continuous terminal 9 on the stage 41 and the continuous terminal 9 is moved in the sending direction (+ X Sends only one terminal 91 in the direction). On the other hand, when the lower end of the swing member 61 is moved in the −X direction, the tip of the feed claw 51 is not caught in the feed hole 93 of the chain band 92 and the continuous terminal 9 is retracted in the return direction (−X direction). Only the feed claw 51 is moved in the −X direction without doing so.

  However, as described above, a protruding portion 421 provided on the feed guide 42 is formed in a portion corresponding to the vicinity of the −X side end portion in the movable range of the feed claw 51 and is moved in the −X direction. When the claw portion 512 of the feed claw 51 reaches the vicinity of the end portion on the −X side in the movable range, the claw portion 512 is separated from the chain band 92 by sliding up the inclined surface 420 of the overhang portion 421. That is, the feed claw 51 is completely in non-contact with the continuous terminal 9 on the stage 41 in the vicinity of the −X side end in the movable range (see FIG. 12).

  By the way, in the sending part 5, the aspect for suppressing the overfeed of the terminal 91 is implement | achieved. This aspect will be described more specifically with reference to FIG. FIG. 4 is a diagram in which the stage 41 is cut along the XZ plane, and a state in which the feed claw 51 sends out the continuous terminal 9 is schematically shown.

  As described above, the claw portion 512 of the feed claw 51 has a tapered shape whose length along the X-axis decreases as it goes to the tip, and this claw portion 512 is in a state where it is hooked on the feed hole 93. The claw portion 512 is inserted deeply into the feed hole 93 to a position where the claw portion 512 is in a state of covering almost the whole along the longitudinal direction of the feed hole 93 (the direction along the extending direction of the chain band 92). As described above, the stage 41 has the groove 411 extending along the X-axis at a position corresponding to the lower side of the movable range of the feed claw 51, and the claw portion 512 inserted into the feed hole 93. The tip end enters the groove 411. That is, the groove 411 functions as a space for releasing the tip of the claw portion 512 inserted into the feed hole 93.

  As described above, the feed claw 51 is moved in the + X direction with the claw portion 512 being caught in the feed hole 93, thereby sending the continuous terminal 9 in the feed direction (+ X direction) by one terminal 91. If it is set as said structure, when the feed nail | claw 51 stops, it will be hard to produce the situation where the continuous terminal 9 will shift | deviate slightly in a sending direction by inertial movement. That is, even if there is no braking force in the delivery direction, it is difficult for the terminal 91 to be fed too much.

  In addition to (or instead of) adjusting the depth of insertion of the claw portion 512, the length of the claw portion 512 along the most advanced X-axis is the long length of the feed hole 93. It may be formed in advance in a dimension substantially the same as the length (the length along the extending direction of the chain band 92) or slightly smaller than the long length. Even with this configuration, in a state where the claw portion 512 is hooked in the feed hole 93, the claw portion 512 is in a state of covering almost the whole along the longitudinal direction of the feed hole 93, and suppression of overfeeding of the terminal 91 is realized. The

  Refer to FIGS. 2 and 3 again. The delivery unit 5 further includes a feed position adjustment bolt 53 that adjusts the position of the feed claw 51 with respect to the swing member 61 along the X axis. The feed position of the terminal 91 can be adjusted by adjusting the position along the X axis of the feed claw 51 with respect to the swing member 61 by the feed position adjustment bolt 53. That is, the feed position adjustment bolt 53 functions as an adjustment mechanism for adjusting the feed position of the terminal 91.

  The operator of the terminal crimping apparatus 1 adjusts the feed position of the terminal 91 using the feed position adjusting bolt 53 prior to the crimping process of the terminal 91. However, this adjustment does not need to be performed strictly, and at least it is sufficient to adjust so that the feed position of the terminal 91 is within an appropriate range described later.

  Here, an appropriate range of the feed position of the terminal 91 will be described with reference to FIG. FIG. 5 is a diagram for explaining the appropriate range.

  A concave molding surface (concave surface) 231 for restraining the barrel portion 911 of the terminal 91 is formed on the bottom surface of the crimper 23. The concave surface 231 has a shape that increases in width toward the opening end in order to make it easy to draw the barrel portion 911, and the terminal 91 is delivered at least within a range constrained by the concave surface 231. Need to be done. Specifically, as shown in FIG. 5, the terminal 91 of the terminal 91 such that the −X side edge of the barrel portion 911 of the terminal 91 coincides with the −X side edge M <b> 2 of the opening end of the concave surface 231. The position of the terminal 91 is defined as “−X side maximum displacement position P1”, and the edge of the terminal 91 on the + X side of the barrel portion 911 coincides with the + X side edge of the opening end of the concave surface 231. In the case of “+ X side maximum deviation position”, the terminal 91 must be sent within the range of the + X side from the −X side maximum deviation position P1 and within the range of the −X side from the + X side maximum deviation position. .

  However, even if it is sent out within the above range, the terminal 91 is not necessarily crimped properly. That is, in order to properly crimp the terminal 91, the terminal 91 is positioned so that the center C of the barrel portion 911 coincides with the center axis M1 of the concave surface 231 with respect to the X axis (ideal crimping position P0 (FIG. 13))). Here, as will become apparent later, in the terminal crimping apparatus 1 according to this embodiment, the terminal 91 to be crimped is positioned upstream (−X side) in the delivery direction from the ideal crimping position P0 (that is, the −X side). Even when the center C of the barrel portion 911 is sent out to the −X side with respect to the X axis from the center axis M1 of the concave surface 231, the terminal 91 can be appropriately crimped.

  Therefore, in the terminal crimping device 1, the range on the + X side from the −X side maximum shift position P1 and on the −X side from the ideal crimp position P0 is set as an appropriate range of the feed position. That is, in the terminal crimping device 1, the terminal 91 may be sent to some position within the appropriate range. Therefore, it is not necessary to strictly adjust the feed position of the terminal 91, and the adjustment work is simplified. However, it is necessary to anticipate that a certain feed error will occur in the feed position of the terminal 91 by the sending unit 5, and at least in consideration of the error, the terminal 91 is sent within an appropriate range. It is necessary to adjust the feed position.

<2-4. Interlocking mechanism 6>
Refer to FIGS. 2 and 3 again. The interlocking mechanism 6 is a mechanism that interlocks the movement of the crimping part 2 (specifically, the lifting / lowering operation of the shank part 22) and the movement of the sending part 5 (specifically, the reciprocating action of the feeding claw 51), The swing member 61 and the transmission member 62 are mainly provided.

  The swing member 61 is supported on the plate portion 211 via the shaft portion 611 so as to be swingable on the outer side of the pair of guide frame pieces 212 and 212 and above the stage 41. The central axis of the shaft portion 611 is substantially orthogonal to the delivery direction (+ X direction) and is substantially horizontal with respect to the base 210, whereby the lower end portion of the swing member 61 swings along the X axis. It comes to move. The swing member 61 is formed with a cam groove 612 that is inclined obliquely toward the anvil 24 toward the lower side.

  One end of the transmission member 62 is integrally connected and fixed to the shank portion 22, and moves up and down in conjunction with the elevation of the shank portion 22. The transmission member 62 extends from the fixed end portion through the groove formed in the one guide frame piece 212 toward the cam groove 612 of the swing member 61 and continues to the free end portion. A protrusion 621 that can move in the cam groove 612 is formed at the free end.

  In the above configuration, when the transmission member 62 moves up and down in conjunction with the lifting and lowering of the shank portion 22, the movement of the movement is transmitted as a movement of swinging the swinging member 61 through the protrusion 621 and the cam groove 612. It has become so. That is, when the shank part 22 is pushed down vertically from the uppermost position, the protrusion 621 also descends vertically together with the shank part 22. Here, the cam groove 612 is curved in the + X direction as it goes downward. Therefore, as the protrusion 621 descends vertically, it slides against the inner wall of the cam groove 612 and rotates the swing member 61 in the clockwise direction when viewed from the −Y direction. Then, the lower end portion of the swing member 61 moves in the −X direction, and as described above, the feed claw 51 attached to the lower end portion is moved in the −X direction (return direction). On the other hand, when the shank part 22 is pulled up vertically from the lowermost position, the protrusion 621 also rises vertically together with the shank part 22. When the protrusion 621 rises vertically, this slidably contacts the inner wall of the protrusion 621 and rotates the swing member 61 counterclockwise as viewed from the −Y direction. Then, the lower end portion of the swinging member 61 moves in the + X direction, and as described above, the feed claw 51 attached to the lower end portion is moved in the + X direction (feeding direction). Thus, the interlocking mechanism 6 is configured to reciprocate the feed claw 51 along the X axis in conjunction with the lifting / lowering operation of the shank portion 22.

<2-5. One side brake part 7>
The one-side brake portion (one-side braking portion) 7 is in contact with the chain band 92 of the continuous terminal 9 placed on the stage 41 on the upstream side (−X side) of the feed claw 51 in the sending direction, and the continuous terminal 9. The movement in the return direction (−X direction) opposite to the sending direction (+ X direction) is braked. However, the one-side brake part 7 does not brake the movement of the continuous terminal 9 in the delivery direction. That is, the one-side brake part 7 prevents only the movement of the continuous terminal 9 in the return direction without preventing the movement of the continuous terminal 9 in the sending direction.

  Hereinafter, the one-side brake unit 7 will be specifically described with reference to FIGS. 6 to 9 in addition to FIGS. 2 and 3. FIG. 6 is a side view schematically showing the overall configuration of the one-side brake unit 7. FIG. 7 is a side view schematically showing the configuration of the main body portion 72 of the one-side brake portion 7. FIG. 8 is a view of the main body 72 viewed from the direction of the arrow K in FIG. FIG. 9 is a side view schematically showing the main body 72 in a rocked state.

<I. Configuration>
The one-side brake portion 7 mainly includes a support plate portion 71, a main body portion 72, an urging member 73, and a release lever 74.

  As shown in FIG. 7, the main body 72 is a substantially flat plate-like member, and a lower portion 721 and an upper portion 722 disposed above the lower portion 721 are integrated with each other. The lower portion 721 has a shape obtained by cutting a part of the disk along the string, and has a posture in which the string is directed upward. Further, the upper portion 722 has a substantially rectangular long plate shape, and is arranged so that the long direction is along the string of the lower portion 721. However, the length of the string of the lower part 721 is shorter than the length of the upper part 722 in the longitudinal direction, and the lower part 721 is one side along the longitudinal direction of the upper part 722 (hereinafter “front side of the main body part 72”). It is unevenly distributed.

  A plurality of pressing blades 723, 723,... 723 are arranged along the arc direction on the lower surface (arc-shaped surface region) 720 of the lower portion 721. The pressing blade 723 disposed on the foremost side along the arc direction is formed, for example, at a position corresponding to the approximate center of the arcuate surface region 720 in the arc direction. The number of pressing blades 723 may be any number and is not limited to the number shown.

  Each of the group of pressing blades 723, 723,... 723 has a V-shaped cross section that is pointed downward. And each tip position of a group of press blades 723, 723,... 723 is arranged on the circumference of one virtual circle q. The protruding lengths of the respective pressing blades 723 from the arcuate surface region 720 may be substantially the same. In this case, the virtual circle q is a concentric circle with the circle defining the arcuate surface region 720.

  Each of the group of pressing blades 723, 723,... 723 has a similar configuration. More specifically, each pressing blade 723 is formed from a front surface (front side surface) 7231 and a rear side surface (rear side surface) 7232 across the top portion 7230. The top portion 7230 extends along the left-right direction of the main body portion 72. Moreover, each of the both end parts 7233 and 7233 along the extending direction of the top part 7230 is formed in a rounded corner shape as shown in FIG. Further, the front side surface 7231 of each pressing blade 723 is a surface along the radial direction of the virtual circle q. The rear side surface 7232 of each pressing blade 723 is a surface inclined with respect to the radial direction of the virtual circle q.

  The main surface of the main body 72 is provided with a shaft hole 724 penetrating left and right. The shaft hole 724 is formed such that its center R is located behind the center Q of the virtual circle q. That is, the shaft hole 724 is formed so as to penetrate along the direction parallel to the extending direction of the top portion 7230 of each pressing blade 723, and its center R is on the rear side of the virtual surface passing through the front side surface 7231 of each pressing blade. It is formed. As shown in FIG. 3, a fixing screw 701 is inserted into the shaft hole 724 through a through hole 714 formed in the support plate portion 71 and fastened. As a result, the main body 72 is swingably supported on one main surface of the support plate 71, which is a substantially plate-like member, via the fixing screw 701. Hereinafter, the swing axis of the main body 72 is also referred to as “swing axis R”.

  The one-side brake unit 7 includes a biasing member 73 that biases the main body 72 downward (for example, elastically biases). Specifically, the biasing member 73 is, for example, a coil spring, and in a contracted state, one end of the biasing member 73 is brought into contact with the bottom surface of the accommodation hole 725 formed near the front end of the upper end surface of the main body 72. At the same time, the other end is brought into contact with the lower surface of the top plate 712 projecting from the upper end of the support plate 71. However, the abutting position (that is, the position where the urging force is applied) T between the urging member 73 and the main body 72 is formed so as to be in front of the swing axis R. As a result, the main body 72 supported by the support plate 71 (specifically, the front portion of the main body 72) is urged downward.

  The one-side brake unit 7 further includes a release lever 74 for releasing the braking state. The release lever 74 is a substantially rod-like long member, and one end of the release lever 74 is fastened and fixed to a screw hole 726 formed in the vicinity of the rear end of the upper end surface of the main body 72, and a notch is cut out from the fixed end. It extends upward of the top plate portion 712 via the portion 713 (notch portion 713 formed in the top plate portion 712 of the support plate portion 71), and the free end portion protrudes above the top plate portion 712. State. However, the connection position U between the release lever 74 and the main body 72 is formed to be behind the swing axis R. In this configuration, when the release lever 74 is pushed downward, the main body 72 rotates in a direction against the urging force of the urging member 73.

<Ii. Positional relationship to stage 41>
As described above, the main body 72 is swingably supported on one main surface of the support plate 71 via the fixing screw 701. As shown in FIGS. 2 and 3, the support plate 71 that supports the main body 72 is erected in a substantially vertical posture with respect to the stage 41. That is, the feed guide 42 is formed with a notch 422 for disposing the support plate portion 71, and is a side wall surface on the −Y side of the feed guide 42, below the notch 422. Two screw holes 423 and 423 are formed. On the other hand, screw holes 711 are also provided below the support plate portion 71 at positions corresponding to the two screw holes 423 and 423 formed in the feed guide 42. A screw 703 is inserted into each screw hole 711 with a washer 702 interposed therebetween, and is fastened to the screw hole 423 of the stage 41, whereby the support plate portion 71 that supports the main body 72 is fixed to the stage 41. The

  In a state where the support plate portion 71 supporting the main body portion 72 is fixed to the stage 41, the lower surface of the main body portion 72 faces the stage 41, and the front-rear axis thereof is the feeding direction of the continuous terminal 9 (X-axis direction). ) And the front side thereof is arranged to face the downstream side (+ X side) in the delivery direction. Therefore, the arcuate surface region 720 of the main body 72 is arranged to face the chain 92 on the stage 41 in such a posture that the arc direction is along the delivery direction. Therefore, the arrangement direction of the group of pressing blades 723, 723,... 723 is along the delivery direction, and all the pressing blades 723, 723,. Become. Further, each pressing blade 723 has a posture such that the top portion 7230 extends in a direction substantially orthogonal to the delivery direction and extends substantially horizontally with respect to the stage 41. Further, the front side surface 7231 of each pressing blade 723 is arranged on the downstream side (+ X side) in the sending direction, and the rear side surface 7232 is arranged on the upstream side (−X side) in the sending direction.

  Further, the swing axis R is disposed on the upstream side (−X side) in the delivery direction with respect to the virtual plane passing through the front side surface 7231 of each pressing blade 723, is substantially orthogonal to the delivery direction, and is relative to the stage 41. Will extend approximately horizontally. For this reason, when the main body 72 is swung around the swing axis R, the arcuate surface region 720 moves toward and away from the continuous terminal 9 while rotating.

  As described above, the main body 72 is urged downward by the urging member 73, and the position T of the urging force is on the front side of the swing shaft R (that is, downstream in the delivery direction (+ X side)). It is in. Therefore, the arcuate surface region 720 is biased toward the continuous terminal 9 on the stage 41 in response to the biasing force from the biasing member 73, and the pressing blade 723 formed on the arcuate surface region 720 (more specifically, , At least one pressing blade 723 out of the group of pressing blades 723, 723,... 723 formed in the arcuate surface region 720 is pressed against the continuous terminal 9.

  Further, as described above, the release lever 74 is attached to the main body 72, and the connection position U is on the rear side of the swing shaft R (that is, on the upstream side in the delivery direction (−X side)). is there. Therefore, when the release lever 74 is pushed downward, the main body 72 rotates in a direction against the urging force of the urging member 73, and the pressing blade 723 formed in the arcuate surface region 720 moves from the continuous terminal 9. It is in a separated state. That is, the operator can release the braking of the one-side brake portion 7 by pressing the free end portion of the release lever 74 downward.

<Iii. Mode of braking>
A mode in which the one-side brake unit 7 prevents only the movement of the continuous terminal 9 in the return direction without preventing the movement of the continuous terminal 9 in the sending direction will be described.

  As described above, in a state where the one-side brake portion 7 is attached to the stage 41, the biasing member 73 moves the arcuate surface region 720 of the main body portion 72 to the continuous terminal 9 on the stage 41 (specifically, the continuous terminal 9 Energize toward the chain 92). Then, at least one pressing blade 723 among the plurality of pressing blades 723, 723,... 723 formed in the arcuate surface region 720 is on the front side surface 7231 (that is, on the downstream side (+ X side) in the delivery direction). The surface disposed) is substantially perpendicular to the upper surface of the chain 92, and the rear side surface 7232 (that is, the surface disposed on the upstream side (−X side) in the delivery direction) is the surface of the chain 92. It is in a state of being pressed against the continuous terminal 9 in such a posture as to be inclined with respect to the upper surface. Hereinafter, the pressing blade 723 pressed against the continuous terminal 9 in such a posture is also referred to as an “effective pressing blade”. In the example of FIG. 7, the pressing blade 723 disposed on the foremost side is an effective pressing blade. However, here, “substantially perpendicular to the upper surface of the chain 92” means not only when the angle between the upper surface of the chain 92 and the front side surface 7231 is 90 degrees, but also when the angle is approximately 90 degrees. (In other words, the case where the deviation from 90 degrees is negligible (for example, about ± 5 degrees)) is included. Therefore, a plurality of pressing blades 723 among the group of pressing blades 723, 723,... 723 can be effective pressing blades.

  When at least one pressing blade 723 is pressed against the continuous terminal 9 in the posture as described above, the continuous terminal 9 can move in the sending direction (+ X direction) but not in the return direction (−X direction). Cannot move.

  That is, when the continuous terminal 9 is about to move in the return direction (−X direction), the pressing blade 723 serving as an effective pressing blade presses the chain band 92 from the direction orthogonal to the moving direction. Cannot move in the direction. Furthermore, as described above, the main body 72 has an upstream side (−X side) in the sending direction with respect to a virtual surface passing through the front side surface 7231 of the pressing blade 723 (a surface disposed on the downstream side (+ X side) in the sending direction). Oscillating about the oscillating shaft R arranged at the center. Therefore, when the continuous terminal 9 tries to move in the return direction (−X direction), the main body 72 receives a frictional force from the chain band 92, and the main body 72 has a small amount in the direction in which the tip of the pressing blade 723 approaches the chain band 92. Rocks. Accordingly, the pressing blade 723 serving as the effective pressing blade is pressed more strongly against the chain band 92, and thereby the movement of the continuous terminal 9 in the delivery direction is reliably braked.

  On the other hand, when the continuous terminal 9 is about to move in the delivery direction (+ X direction), all the pressing blades 723, 723,... 723 including the pressing blade 723 serving as an effective pressing blade are along the moving direction. Since it is in the state where it hits the chain band 92 from the side of the inclined surface, the movement of the chain band 92 in this direction is not hindered. Furthermore, as described above, the main body 72 can swing around the swing axis R disposed on the upstream side (−X side) in the delivery direction from the virtual surface passing through the front side surface 7231 of the pressing blade 723. Has been. Therefore, when the continuous terminal 9 attempts to move in the delivery direction (−X direction), the main body 72 receives a frictional force from the chain band 92 and the main body 72 has a small amount in the direction in which the tip of the pressing blade 723 moves away from the chain band 92. Rocks. Therefore, the continuous terminal 9 can move smoothly in the delivery direction without being obstructed by the pressing blade 723.

  By the way, which of the plurality of pressing blades 723, 723,... 723 becomes the effective pressing blade depends on the thickness of the chain 92 of the continuous terminal 9 to be processed. For example, when a certain continuous terminal (first continuous terminal) 9a is a processing target, it is assumed that the first + X side first pressing blade 723 is the effective pressing blade (FIG. 7). Here, when the second continuous terminal 9b having the chain band 92 thicker than the first continuous terminal 9a is to be processed, the main body 72 is viewed from the + Y side with the oscillation axis R as the center. It is in a state of being oscillated by a small amount clockwise (FIG. 9). That is, the center Q of the virtual circle q moves slightly upward along an arc centered on the swing axis R, and as a result, the arcuate surface region 720 slightly moves upward while rotating slightly. Then, the -X side pressing blade 723 from the first pressing blade 723 becomes an effective pressing blade. In the example of FIG. 9, the pressing blade 723 arranged on the most −X side is an effective pressing blade. That is, when the thickness of the chain band 92 is changed, the pressing blade 723 serving as an effective pressing blade is also changed. The thicker the chain band 92 is, the more the −X side pressing blade 723 is an effective pressing blade. That is, the one-side brake portion 7 can correspond to the chain band 92 having various thicknesses. That is, it becomes possible to deal with various continuous terminals 9.

<3. Operation of terminal crimping device 1>
The operation of the terminal crimping apparatus 1 will be specifically described with reference to FIGS. FIG. 10 schematically shows the state where the feed claw 51 is moved in the delivery direction. FIG. 11 schematically shows the state where the feed claw 51 is moved in the return direction. FIG. 12 schematically shows a state where the terminal 91 is restrained by the crimper 23. 10 to 12, only a part of the components is schematically shown for convenience of explanation.

  When the shank portion 22 (not shown) is pushed vertically from the lowermost position to the uppermost position, the crimper 23 moves vertically upward (arrow AR1) as shown in FIG. On the other hand, when the shank portion 22 is pushed up vertically from the lowermost position to the uppermost position, the interlocking mechanism 6 moves the feed claw 51 in the + X direction accordingly (arrow AR10). As described above, while the feed claw 51 is moved in the + X direction, the claw portion 512 of the feed claw 51 is caught by the feed hole 93 of the chain band 92 of the continuous terminal 9 on the stage 41. When the feed claw 51 is moved in the + X direction with the claw portion 512 being caught in the feed hole 93, the continuous terminal 9 is fed by one terminal 91 in the + X direction (arrow AR100). However, the one-side brake unit 7 does not brake the movement of the continuous terminal 9 in the delivery direction.

  When the shank portion 22 reaches the uppermost position, the feeding claw 51 reaches the position on the most + X side (the most downstream position) within the movable range and stops. At this time, a new terminal 91 is placed at some position within the appropriate range on the anvil 24 (ie, below the crimper 23). As described above, in a state where the claw portion 512 is hooked in the feed hole 93, the claw portion 512 is in a state of covering almost the whole along the longitudinal direction of the feed hole 93. Even if there is no braking force in the direction, when the feed claw 51 is stopped, a situation in which the continuous terminal 9 is slightly displaced in the delivery direction due to inertial movement (that is, overfeeding) hardly occurs.

  Subsequently, when the shank portion 22 is pushed down vertically from the uppermost position, the crimper 23 moves vertically downward (arrow AR2) as shown in FIG. On the other hand, when the shank part 22 is pushed down vertically from the uppermost position, the interlocking mechanism 6 moves the feed claw 51 in the -X direction accordingly (arrow AR20). As described above, while the feed claw 51 is moved in the −X direction, the claw portion 512 of the feed claw 51 is not caught in the feed hole 93 of the chain band 92 on the stage 41 and the continuous terminal 9 is moved in the −X direction. Only the feed claw 51 is moved in the −X direction without being moved backward. However, the one-side brake unit 7 brakes the movement of the continuous terminal 9 in the return direction. Therefore, when the feed claw 51 moves in the −X direction without being caught by the feed hole 93, the one-side brake unit 7 A situation in which the continuous terminal 9 is displaced in the −X direction following the tracking does not occur.

  When the shank part 22 reaches a predetermined position near the lowermost position (lowermost position), the terminal 91 arranged on the anvil 24 is restrained by the concave surface 231 of the crimper 23 as shown in FIG. . Then, while the shank portion 22 is further lowered from the lowermost position and reaches the lowermost position, the barrel portion of the terminal 91 is deformed between the crimper 23 and the anvil 24 (that is, the terminal 91 is added). Tightened) and crimped to the end of the wire. However, almost simultaneously with the start of the restraint of the terminal 91 on the concave surface 231 of the crimper 23, the feeding claw 51 reaches the position where the overhanging portion 421 is formed and slides up the inclined surface 420, thereby separating from the chain band 92. It is assumed that That is, the feed claw 51 and the continuous terminal 9 are completely in a non-contact state from when the terminal 91 is restrained to the concave surface 231 until it is crimped.

  As described above, the one-side brake unit 7 does not brake the movement of the continuous terminal 9 in the sending direction. Therefore, the terminal 91 is in a state of being able to move completely freely in the delivery direction after the terminal 91 is restrained on the concave surface 231 until it is crimped (hereinafter, this state is referred to as “one-side free state”). ”). According to this configuration, an appropriate crimping process can be performed on the terminal 91. The reason will be described with reference to FIG. FIG. 13 is a diagram illustrating a state in which a crimping process is performed on the terminal 91.

  In order to perform an appropriate crimping process by the crimper 23, the terminal 91 needs to be crimped in a state where the terminal 91 is strictly aligned with the ideal crimping position P0. This is because if the terminal 91 is crimped at a position deviated from the center of the concave surface 231, the barrel portion 911 of the terminal 91 has a left-right asymmetric shape as shown in FIG. This is because there is a high possibility that inconveniences such as defects and poor energization will occur.

  As described above, the terminal 91 sent out by the feeding unit 3 is sent within an appropriate range. That is, there is a possibility that the terminal 91 is sent to a position shifted to the −X side from the ideal crimping position P0 within a range in which the terminal 91 is reliably restrained by the crimper 23 (upper stage in FIG. 13).

  Here, in the above embodiment, in a state where the terminal 91 is restrained by the concave surface 231 of the crimper 23 (middle stage in FIG. 13), the continuous terminal 9 can move freely in the delivery direction (+ X direction). It is in a free state. Therefore, even if the terminal 91 is sent to a position shifted to the −X side from the ideal crimping position P0, as the crimper 23 descends, the terminal 91 is guided to the inner wall of the concave surface 231 and is naturally in the sending direction (+ X direction). (Ie, naturally moved toward the center of the concave surface 231) (natural position correction), and finally, it is always crimped at the ideal crimping position P0, ie, the center of the concave surface 231 (see FIG. 13 bottom). In this way, when crimped at the center of the concave surface 231, the winding shape of the barrel portion 911 that is crimped and fixed to the electric wire becomes a symmetrical shape as shown in FIG. 14. Thus, in the terminal 91 that is crimped and fixed to the electric wire in an appropriate shape, inconveniences such as poor crimping and poor energization hardly occur. In the above embodiment, since the terminal 91 is in one-side free state when the terminal 91 is crimped, the relationship between the barrel portion 911 and the terminal portion is appropriate in the terminal 91 that is crimped and fixed to the electric wire. Easy to maintain. Specifically, the twist amount (rolling) of the barrel portion 911 with respect to the terminal portion is suppressed to a small value. Further, the left and right bending amount (twist) of the barrel portion 911 with respect to the terminal portion can be suppressed to be small. Further, the amount of positional deviation before and after the barrel portion 911 with respect to the terminal portion can be suppressed to be small. In addition, the vertical displacement of the barrel portion 911 with respect to the terminal portion can be reduced. As described above, in the terminal crimping apparatus 1, while the terminal 91 is crimped, the continuous terminal 9 is in a one-side free state, whereby an appropriate crimping process can be performed on the terminal 91.

<4. Effect>
As described above, according to the above embodiment, the one-side brake unit 7 brakes the movement in the return direction without braking the movement of the continuous terminal 9 in the sending direction. According to this configuration, as described above, even when the terminal 91 to be crimped is sent to a position upstream of the ideal crimping position P0 in the delivery direction, an appropriate crimping process is performed on the terminal 91. It can be performed.

  Moreover, according to the one side brake part 7 which concerns on said embodiment, the movement to the sending direction of the continuous terminal 9 is a state which is not always braked. For example, in an existing terminal crimping device in which a normal brake member (for example, a member that suppresses the continuous terminal with a constant pressure and prevents movement of the continuous terminal in the sending direction and the return direction) is mounted, the terminal 91 has a concave surface. When the brake is to be released only from the start of restraint to 231 until it is crimped, a mechanism for moving the brake member up and down relative to the continuous terminal and a timing for moving the brake member up and down are taken. It is necessary to provide the above mechanism, etc., the device configuration becomes complicated, and the possibility that the durability is lowered increases. In the above-described embodiment, in the existing terminal crimping apparatus, by mounting the one-side brake portion 7 instead of the brake member, the processing performance of the crimping process can be improved easily and inexpensively.

  Further, according to the above embodiment, the pressing blade 723 (specifically, at least one pressing blade 723 of the plurality of pressing blades 723, 723,... 723) is connected to the front side surface 7231 (in the sending direction). The downstream surface) is perpendicular to the continuous terminal 9 and the rear side surface 7232 (the surface disposed upstream in the delivery direction) is inclined with respect to the continuous terminal 9 in a continuous manner. By being pressed against the terminal 9, only the movement of the continuous terminal 9 in the return direction is braked. According to this configuration, as described above, the movement in the return direction can be braked without braking the movement of the continuous terminal 9 in the sending direction with a simple configuration.

  Moreover, according to said embodiment, the rocking | fluctuation axis | shaft by which the main-body part 72 was arrange | positioned upstream from the virtual surface passing through the front side surface 7231 (surface arrange | positioned downstream in a sending direction) of each press blade 723. It is pivotally supported around R so that it can swing. According to this configuration, as described above, it is possible to smoothly move the continuous terminal in the sending direction while reliably braking the movement of the continuous terminal in the return direction.

  Further, according to the above embodiment, the plurality of pressing blades 723, 723,... 723 are arranged in the arcuate surface region 720 of the main body 72 along the arc direction. According to this configuration, as described above, various continuous terminals 9 having different thicknesses can be handled. That is, for each of the various continuous terminals 9 having different thicknesses, the movement in the return direction can be braked without braking the movement in the sending direction.

  Further, according to the above embodiment, the tip positions of the plurality of pressing blades 723, 723,... 723 are arranged on the circumference of the virtual circle q, and the front side surface 7231 of each pressing blade 723 (feeding direction) Is a surface along the radial direction of the virtual circle q. According to this configuration, it is possible to reliably brake the movement in the return direction without braking the movement in the delivery direction for each of the various continuous terminals 9 having different thicknesses.

  In addition, according to the above embodiment, the release lever 74 can be operated to swing the main body portion 72 of the one-side brake portion 7 in a direction in which the tip of the pressing blade 723 is separated from the continuous terminal 9. Therefore, the braking of the one-side brake unit 7 can be easily released as necessary.

  Further, according to the above-described embodiment, when the top portion 7230 of each pressing blade 723 is arranged so as to extend in a direction orthogonal to the delivery direction, each of both end portions along the extending direction of the top portion 7230 is The shape is rounded. According to this configuration, it is difficult to cause a situation in which the continuous terminal 9 is scraped at the corner of the top portion 7230 of the pressing blade 723 pressed against the continuous terminal 9, and generation of particles such as shavings is suppressed.

  Further, according to the above-described embodiment, in a state where the feeding claw 51 is hooked on the feeding hole 93, the claw portion 512 is in a state where the entire width along the feeding direction of the feeding hole 93 is blocked. According to this configuration, as described above, it is difficult for the terminal 91 to be fed excessively.

  Further, according to the above-described embodiment, the feed claw 51 is not in contact with the continuous terminal 9 from the time when the terminal 91 is restrained by the concave surface 231 of the crimper 23 to the crimping portion 2 in the crimping portion 2. . According to this configuration, as described above, until the terminal 91 is restrained by the concave surface 231 and is crimped, the movement of the terminal 91 to be crimped in the delivery direction is completely free. Therefore, the terminal 91 sent to the upstream side (−X side) in the sending direction from the ideal crimping position P0 can move particularly smoothly to the ideal crimping position P0.

<5. Modification>
The one-side brake unit 7 according to the above embodiment has a configuration in which a plurality of pressing blades 723, 723,... 723 are formed in the main body portion 72, but the main body portion 72 does not necessarily have a plurality of pressing blades 723. , 723,... 723 may not be provided. For example, as shown in FIG. 15, only one pressing blade 723 may be provided on the main body 72a. However, as described above, if a plurality of pressing blades 723, 723,... 723 are provided in the main body 72, there is an advantage that various continuous terminals 9 having different thicknesses of the chain band 92 can be handled. It is done.

  Moreover, in said embodiment, the structure of the crimping | compression-bonding part 2, the path | route definition part 4, the sending part 5, and the interlocking mechanism 6 is not restricted to what was demonstrated above. For example, the crimping portion may be configured so that the crimper 23 and the anvil 24 move relatively close to each other. For example, both the crimper 23 and the anvil 24 may move, or the crimper 23 may move to the anvil 24. The structure which approaches and separates may be sufficient with respect to it. Further, the delivery unit may be a mechanism that feeds by an actuator such as a separate air cylinder, for example.

  Moreover, the one-side brake part 7 should just be what can prevent only the movement of the return direction of the continuous terminal 9, without preventing the movement of the continuous terminal 9 in the sending direction, and does not necessarily need to be the structure mentioned above. . For example, a pair of roller members are provided so as to sandwich the chain band 92 of the continuous terminal 9 from above and below, and the roller member disposed above the chain band 92 can be rotated only in the counterclockwise direction when viewed from the −Y direction. The roller member disposed below the chain band 92 can be rotated only in the clockwise direction when viewed from the −Y direction. Even with this configuration, it is possible to realize a one-side brake portion that prevents only the movement of the continuous terminal 9 in the return direction without hindering the movement of the continuous terminal 9 in the sending direction.

DESCRIPTION OF SYMBOLS 1 Terminal crimping apparatus 2 Crimping part 3 Feeding part 4 Path | route definition part 5 Sending part 51 Feeding claw 6 Interlocking mechanism 7 One side brake part 71 Support plate part 72 Main body part 723 Pressing blade 73 Energizing member 74 Release lever 9 Continuous terminal 91 Terminal

Claims (9)

A crimping part that crimps the terminal to the electric wire by crimping one of the terminals connected to the continuous terminal with a mold; and
In conjunction with the crimping operation in the crimping part, by moving the feed claw hooked in the feed hole of the continuous terminal placed on the stage, the continuous terminals are directed toward the crimping part one by one. A sending section for sending;
A one-side braking unit that brakes movement in the return direction opposite to the delivery direction without braking the movement of the continuous terminal in the delivery direction;
A terminal crimping device. The terminal crimping device according to claim 1,
The one-side braking part is
A main body disposed opposite to the continuous terminal;
An urging member that urges the main body portion and presses the main body portion against the continuous terminal;
With
The main body is
A pressing blade having a V-shaped cross section provided on the surface of the main body portion facing the continuous terminal;
With
The pressing blade is
The V-shaped top is arranged so as to extend in a direction perpendicular to the delivery direction,
Of the two slopes sandwiching the top, the surface disposed on the downstream side in the delivery direction is perpendicular to the continuous terminal, and the surface disposed on the upstream side in the delivery direction is the continuous terminal. Pressed against the continuous terminal in a posture that is inclined with respect to the
Terminal crimping device. The terminal crimping device according to claim 2,
The main body is
Oscillating around an oscillating shaft that is arranged upstream of the imaginary plane passing through the plane arranged on the downstream side of the pressing blade and extending in parallel with the extending direction of the top. Supported by
Terminal crimping device. The terminal crimping device according to claim 3,
A surface of the main body portion facing the continuous terminal includes an arcuate surface region, and the main body portion is arranged in a posture that follows an arc direction of the arcuate surface region along the delivery direction.
A plurality of the pressing blades are provided, and the plurality of pressing blades are arranged in the arcuate surface region along the arc direction.
Terminal crimping device. The terminal crimping device according to claim 4,
The tip positions of the plurality of pressing blades are arranged on the circumference of a virtual circle,
In each of the plurality of pressing blades, the surface disposed on the downstream side in the delivery direction is a surface along the radial direction of the virtual circle.
Terminal crimping device. The terminal crimping device according to any one of claims 3 to 5,
The one-side braking part is
A release lever attached to the main body portion at a position upstream of the swing shaft in the delivery direction;
A terminal crimping apparatus. The terminal crimping device according to any one of claims 2 to 6,
Each of both end portions along the extending direction of the top portion of the pressing blade is rounded.
Terminal crimping device. The terminal crimping device according to any one of claims 1 to 7,
In the state where the feed claw is hooked in the feed hole, the tip of the feed claw is in a state of closing the whole width along the feed direction of the feed hole,
Terminal crimping device. The terminal crimping device according to any one of claims 1 to 8,
The terminal crimping apparatus in which the feeding claw is in a non-contact state with the continuous terminal from the time when the terminal is restrained by the mold to the crimping portion.

Images