CN117955018A - Wire cutting and peeling device, end processing wire manufacturing device and method - Google Patents

Wire cutting and peeling device, end processing wire manufacturing device and method Download PDF

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Publication number
CN117955018A
CN117955018A CN202311404293.5A CN202311404293A CN117955018A CN 117955018 A CN117955018 A CN 117955018A CN 202311404293 A CN202311404293 A CN 202311404293A CN 117955018 A CN117955018 A CN 117955018A
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CN
China
Prior art keywords
wire
peeling
cutting
electric wire
clamping
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Pending
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CN202311404293.5A
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Chinese (zh)
Inventor
木下顺夫
石川裕也
但野洋一
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Japan Automatic Machine Co Ltd
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Japan Automatic Machine Co Ltd
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Filing date
Publication date
Priority claimed from JP2023149988A external-priority patent/JP7496464B2/en
Application filed by Japan Automatic Machine Co Ltd filed Critical Japan Automatic Machine Co Ltd
Publication of CN117955018A publication Critical patent/CN117955018A/en
Pending legal-status Critical Current

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Abstract

The invention provides a wire cutting and peeling device, an end processing wire manufacturing device and a method. To improve productivity and quality in manufacturing an end-treated wire including a wire cutting/peeling step or a post-end-treatment step. The end-processed wire manufacturing apparatus (1) (FIG. 1) is provided with a wire supply unit (10), a wire cutting and peeling unit (4), an end processing unit (60), and a clamping and conveying unit (20) for clamping and conveying the wire to each unit. The wire cutting and peeling device is further provided with a turning guide (160), wherein the turning guide (160) is arranged along a turning path of the wire end between the wire cutting and peeling part (4) and the end processing part (60), and is provided with a pair of guide plates (161U, 161B) which are opposite in the crossing direction of the turning direction. The distance between the pair of opposing guide plates (161U, 161B) is relatively wide on the side of the end treatment section (60), and relatively narrow on the side of the wire cutting and peeling section (4).

Description

Wire cutting and peeling device, end processing wire manufacturing device and method
Technical Field
The present invention relates to a device for cutting an electric wire, peeling off a coating (skin) of an end portion of the electric wire, crimping an electric wire terminal after peeling off the coating, and the like. And more particularly, to a manufacturing apparatus for manufacturing a terminal crimping wire which shortens the time (tact time) for manufacturing one product wire to improve productivity, or which applies improvement to removal of flaking chips or the like of wire coating.
Background
In the wire harness industry, a process (cutting, peeling, terminal crimping process) of cutting an electric wire into a desired length, peeling (removing) the coating of the front and rear cut portions, and thereafter crimping and connecting a connector terminal for connection is a basic process that is extremely large in the number of operations to be performed on a large number of electric wires used in a wire harness. In the cutting, peeling, and terminal crimping steps, improvement in production efficiency and quality, which are more than other steps, are required. To meet the requirements, automatic handling machines for electric wires continue to improve and evolve. As one of the improvements, a new technology has been proposed for the structure and operation of a blade driving mechanism for cutting a wire, a wire guiding mechanism, a blowing mechanism for removing chips, and the like.
A conventional example of an automatic processing apparatus used in a wire cutting, stripping, and terminal crimping process is disclosed in japanese patent application laid-open No. 2014-7043. The machine includes a wire supply unit, a wire cutting unit, a peeling unit for the tip (head) of the wire, a rotary conveyor unit for the 1-side wire (wire having the tip cut and the rear end connected to the wire coil), a terminal crimping machine, and the like. The device of the prior art also improves the production efficiency and quality of the cutting, peeling and terminal crimping process.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 2014-7043
Disclosure of Invention
Problems to be solved by the invention
The present invention aims to provide the following devices or methods: the production efficiency and quality of a terminal crimping wire manufacturing process including a wire cutting, peeling process, or a terminal crimping process can be improved, or the performance such as the peeling chip discharging performance of the wire coating can be improved.
Solution for solving the problem
In this "means for solving the problem" and "claims" and a part of the specification, reference numerals of each portion of the drawings are denoted by brackets, but this is for reference only and is not intended to limit the scope of protection to the scope of the drawings.
The first wire cutting and peeling device (4) of the present invention is a wire cutting and peeling device (4) comprising: a cutter blade (42) and a stripper blade (41, 43) which are arranged along the length direction of the electric wire, wherein the cutter blade (42) cuts the electric wire, the stripper blade (41, 43) forms a notch on the coating of the electric wire, and the electric wire cutting and stripping device (4) is characterized in that the electric wire cutting and stripping device (4) comprises: a slider (45) reciprocally driven in a crossing direction with respect to a longitudinal direction of the electric wire; a peeling blade holder (441) attached to the slider (45) and holding the peeling blades (41, 43); a cutter holder (443) mounted on the slider (45) and holding the cutter (42); and a cutter driving actuator (44) for reciprocally driving the cutter holder (443) in the intersecting direction, wherein a mechanism for reciprocally driving the slider (45) is electrically operated, and the cutter (42) cuts the wire by driving the cutter driving actuator (44), thereafter evades the wire, and after the wire is cut, the wire is moved in the longitudinal direction to set a peeling length, and then the peeling blades (41, 43) are cut into the coating of the wire, and then the wire is moved in the longitudinal direction to peel the coating.
The "cross direction" in which the cutter driving actuator (44) is driven generally means a direction perpendicular to the longitudinal direction of the wire, and is normally the up-down direction (the direction of earth gravity). However, the present invention is not limited thereto. The actuator driving direction is generally the same as the driving direction of the slider (45). However, the present invention is not limited thereto.
The cutter driving actuator (44) is preferably an air cylinder. The air pressure cylinder has the advantages of high speed, high acceleration, space saving, low price, easy piping treatment and the like.
The stroke of the cutter blade is long for the following reason. That is, it is necessary that the pair of blades overlap sufficiently at the cutting completion position, and that the V-shaped or other opposing cutting edges retract sufficiently from the space in which the wire travels at the avoidance position (wire feed standby position) to prevent the blades from inadvertently touching the wire and damaging the wire. In addition, the cutoff knife does not need to be precisely positioned (e.g., by a motor + ball screw). On the other hand, the stripping blade must precisely adjust the cutting position (position where a pair of blades are close to each other and overlap) according to the type (diameter, coating thickness) of the wire. According to the characteristics of each knife, electric power and cylinder drive are combined in a preferred embodiment of the present invention.
In a conventional general wire cutting and peeling apparatus, an integral attachment member to which a wire cutting blade and a coating removal blade are attached is provided so as to be slidable up and down, and cutting (wire cutting) and removing (coating peeling) are performed by opening and closing movement of an up-and-down blade driven by a motor. In the embodiment 1 of the present invention, the wire-cutting blade is operated individually and at high speed by the cutter-driving actuator (44) (such as an air cylinder) to move the cutter blade 42 in the opposite direction during the stop of the peeling blades (41, 43), so that the time for the cutting and coating peeling process can be shortened. Further, by the improved combination with the peripheral device as described below, the operation tact of the whole wire cutting and peeling terminal crimping process can be further shortened, and the productivity of the device can be improved. Further, since only the cutter blade (242) can be retracted from the wire travel path alone, it is easy to perform processing (long removal) in which the wire is peeled longer than the "peeling blade-cutter blade interval", as will be described later with reference to fig. 23 and 24.
Improvement of peripheral device
(1) The cutting distance (cutting blade stroke) is reduced by the advance lowering of the slider (45) before the driving of the cutting blade driving actuator (44).
(2) And the covering chip suction port is arranged towards the side of the 2-side press-connection machine (90).
(3) The reduction of steps and the reduction of useless back and forth operations (return swing) achieved by the improvement of the track of the wire swing unit.
(4) The prevention of the movement of the wire and the stabilization of the wire supply are achieved by the wire rotation guide (160).
The first terminal crimp electric wire manufacturing device (1) of the present invention is an end-processing electric wire manufacturing device (1), comprising: a wire supply unit (10) for supplying wires; an electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the cut end part of the electric wire; an end treatment unit (60) for performing end treatment on the coated distal end of the wire; and a clamp conveying part (20) which clamps the electric wire and conveys the electric wire to each part, wherein the end processing electric wire manufacturing device (1) is characterized in that the end processing electric wire manufacturing device (1) is further provided with a rotary guide (160), the rotary guide (160) is arranged between the electric wire cutting and peeling part (4) and the end processing part (60) along a rotary path of the electric wire end part, the clamp conveying part is provided with a pair of guide plates (161U, 161B) which are opposite in the cross direction of the rotary direction, the distance between the pair of guide plates (161U, 161B) which are opposite is relatively wide at the side of the end processing part (60), and relatively narrow at the side of the electric wire cutting and peeling part (4).
In the above-described end-treated wire manufacturing apparatus (1), it is preferable that the rotary guide (160) has a front-end direction extension (161P) extending in a front-end direction of the wire longitudinal direction, that is, the paying-out direction, at a portion of the wire cutting and peeling section (4).
In the front direction extension part (161P), the front end part of the wire which is fed obliquely or stopped from turning, transversely running and simply discharged is guided. Thus, the shake of the front end portion of the wire extending from the oblique feeding or the simple feeding is reduced, and the feeding failure and damage to the terminal processing portion (terminal) at the time of paying out the wire are prevented.
The rotation direction standard is a horizontal direction, but is not limited thereto. The above-mentioned intersecting direction is the vertical direction, but is not limited thereto. The pair of opposing guide plates (covers) restrict movement (shake, runout, head shake) of the wire tip portion (head), the crimped terminal in the opposing space thereof. In some cases, the wire is fed (discharged) in the longitudinal direction (oblique feeding) during the turning, and in this case, the turning guide (160) guides the wire end in the longitudinal direction. In addition, the term "end treatment" in the present specification includes, in addition to terminal crimping, end treatments such as soldering, electric welding, ultrasonic welding, insertion into a connector housing, and the like.
At the completion of the end treatment (terminal crimping), the swing and bending of the wire end are considerably achieved. In this state, the electric wire enters the inlet side of the rotary guide (160). Further, the swinging and bending of the wire are suppressed and reduced while the wire is traveling in the narrowed rotary guide, and the wire is guided between a pair of cutting blades and peeling blades facing each other in the wire cutting and peeling section (4). This can suppress the head shaking (sway) of the wire head, and has effects such as damage prevention of the terminal processing portion such as the terminal to be pressed, equipment abnormality prevention, and reduction in tact time (to be described later).
The wire end performs a so-called rotational motion including a shake in a direction intersecting the traveling direction of the revolution (typically, up-down direction) and a shake in the left-right direction (traveling direction). This is caused by the tendency of the coils of the remaining wire to wind. If the guide plate of the revolving guide suppresses the sway in the intersecting direction (typically, the up-down direction), the sway in the traveling direction (typically, the left-right direction) is also reduced. In this way, the time for waiting for the shake of the wire end portion to stabilize in the blade portion can be shortened.
Further, the rotational speed of the electric wire can be increased, which contributes to shortening of the tact time. Further, the retracted dimension of the stripping blade for preventing contact between the wire and the blade when the wire is rotated can be reduced, and the feeding time of the stripping blade required for precise feeding position control can be shortened. As an example, the tact time of 0.01sec unit can also be shortened by suppression of wire sway.
The swivel guide (160) also has the effect of preventing damage to the wire and the crimped terminal (end treatment section). Moreover, the electric wire does not swing greatly, and equipment failure is prevented. The revolving guide (160) is preferably made of a material (cold rolled stainless steel plate, etc.) having a smooth surface.
In the end-treated wire manufacturing device (1), the wire can be discharged in the longitudinal direction in the turning guide (160) during the turning of the wire from the 1-side end treatment section (60) to the wire cutting and peeling section (4).
By using a turning guide (160) to restrain the head of the wire head from shaking, flexing, and moving during the wire turning conveyance, failures (damage to the crimp terminal, and equipment stoppage due to the wire and the terminal seizing) caused by the oblique feeding (length measurement feeding, simultaneous turning) are prevented. Therefore, the wire can be stably and frequently fed obliquely, the kinds of wires (wire diameter, wire length, etc.) that can be fed obliquely can be increased, and the wire discharge size of the obliquely fed wire can be lengthened. As a result, the wire (harness) is processed for a plurality of types of terminals, and the wire cutting and tact time can be shortened, and productivity can be improved.
In one specific example of the "oblique feeding mode", the front-rear mechanism (23) of the 1-side clamp (25) and the supply unit (10) start wire feeding before reaching the cutting peeling unit (4) (origin position, wire supply position) in the middle of the return operation of the wire turning conveyance after the end processing (crimping of the head terminal). In the case where the electric wire cannot be paid out to a predetermined length only by the oblique feeding, the electric wire is fed until the end of the length measurement at the electric wire feeding position. In the "standard mode", the wire is not fed during the revolution, and the length of the wire is measured after reaching the origin, and the wire is fed to a predetermined length.
The second end-treated wire manufacturing apparatus (1) of the present invention is an end-treated wire manufacturing apparatus (1) comprising: a wire supply unit (10) for supplying wires; an electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the cut end part of the electric wire; end treatment units (60, 90) for performing end treatment on the end of the wire from which the coating has been removed; and a clamping and conveying part (20, 70) which clamps the electric wire and conveys the electric wire to each part, wherein the end processing electric wire manufacturing device (1) is characterized in that the clamping and conveying part (20, 70) comprises: clamping parts (25, 71) for clamping the electric wire; a length driving member (23, 73) for driving the clamping part in the wire length direction; and a swing drive member (21, 75) that swings and drives the length drive member, wherein the length drive member (23, 73) moves the clamping portion (25, 71) in the longitudinal direction during swing of the clamping portion.
In the "specific embodiment" described later, the "longitudinal driving members (23, 73)" is referred to as "front-rear mechanisms 23, 73". The "swing driving member (21, 75)" is referred to as "swing mechanism 21, 75". The "front-rear mechanism 23, 73" is inclined with respect to the front-rear direction shown in fig. 1 and the like at the time of rotation, and does not move the clamping portion 25, 71 in the strict front-rear direction.
The wire gripping mechanism, each driving member, and mechanism of the gripping portion can be configured using known parts and members such as a motor, a cylinder, a decelerator, a ball screw, a nut, a linear guide, and a link mechanism (see japanese patent application laid-open No. 2014-7043). The clamp delivery portion (20, 70), the discharge clamp portion (81) (discussed later) may also include a clamp lifting mechanism, as desired.
In one embodiment of the second end processing wire manufacturing device (1) of the present invention, when the front end of the 1-side wire (W1) is end-processed in the 1-side end processing unit (60), and then the 1-side clamping unit (25) is rotated to return from the 1-side end processing unit (60) to a position opposite to the cutting and peeling unit (4), the 1-side clamping unit (25) can be moved in a direction away from the wire supply unit (10) by the length driving member (23).
During the turning, the holding part (25) is moved away from the wire feeding part (10) by the length driving member (23), so that the wire feeding length (the wire is fed out toward the head) can be lengthened without changing the wire protruding dimension from the holding part. Therefore, the wire can be fed (obliquely fed) during the wire rotation while suppressing the movement and the swinging of the wire end and the terminal.
Further, the wire feeding can be performed by increasing the wire protruding dimension protruding from the 1-side clamping portion (25) by the wire feeding of the wire feeding portion (10).
Feeding of the electric wire can be achieved by using both the advance of the grip portion (25) and the protrusion of the 1-side electric wire W1 from the grip portion.
In another embodiment of the second end processing wire manufacturing apparatus (1) of the present invention, the 2-side wire (W2) cut and stripped from both ends of the cut and stripped portion (4) is gripped by a 2-side grip (71), the 2-side wire (W2) is pivotally conveyed to a 2-side end processing portion (90), the rear end portion of the 2-side wire (W2) is subjected to end processing, and then, when the 2-side grip (71) is rotated in the opposite direction to return the cut and stripped portion (4), the 2-side wire (W2) is delivered to a discharge grip (81), and the 2-side grip (71) is moved in a direction approaching the cut and stripped portion (4) by the length driving member (73).
Before the 2-side clamping part (71) receives the wire from the cutting and peeling part (4), the 2-side clamping part is retreated (protrudes to the starting side) to meet and receive the wire head released from the cutting and peeling part (4). When the wire is received by the clip portion, the length of the rear end portion of the wire protruding from the clip portion becomes shorter, and therefore, the movement and swinging of the wire end portion and the terminal become smaller. Therefore, the wire delivery to the clamping portion is stable. Further, the 2-side clamping portion (71) may slide (advance) forward (protrude the wire) during the rotation to the 2-side end processing portion, and a gripping portion for discharging the clamping portion may be secured between the terminal and the clamping portion.
The third terminal-treated wire manufacturing apparatus (1) of the present invention is an terminal-treated wire manufacturing apparatus (1) comprising: a wire supply unit (10) for supplying wires; an electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the end part of the electric wire; an end treatment unit (90) for performing end treatment on the end of the wire from which the coating has been removed; and a clamp conveying part (70) which clamps the electric wire and conveys the electric wire to each part, wherein the end processing electric wire manufacturing device (1) is characterized in that the clamp conveying part (70) comprises: a clamping part (71); a driving member (73, 75) for driving the clamping portion; and an openable/closable wire sway suppression unit (719) provided on the opposite side of the clamping unit from the wire cutting/peeling unit (4), and which is located on the side of the wire and suppresses sway of the wire.
The wire released (supplied) from the peeling section (4) to the side (2) is released while being spirally shaken. The wire sway suppression portion 719 is located near the side of the wire released from the peeling portion 4 and suppresses sway (movement, bouncing) of the wire, and the clamping portion stably receives the wire. Further, the wire is prevented from being swung even during wire feeding (turning, etc.), and the wire can be delivered in a stable state during terminal treatment (terminal crimping, etc.) at the rear end of the wire. In addition, the end processing portion during the 2-side wire feeding process can be protected (deformation of the crimp terminal is prevented). For example, the following effects can also be expected: the disorder of the head terminal attached to the front end of the 2-side wire W2 is reduced, and the deformation and damage of the terminal are prevented.
The fourth terminal-treated wire manufacturing apparatus (1) of the present invention is an terminal-treated wire manufacturing apparatus (1), comprising: a wire supply unit (10) for supplying wires; an electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the cut end part of the electric wire; end treatment units (60, 90) for performing end treatment on the end of the wire from which the coating has been removed; clamping and conveying parts (20, 70) which clamp the electric wire and convey the electric wire to each part; and a discharge unit (81) for delivering the wire subjected to the end treatment, wherein the discharge unit (81) is provided with a discharge clamping unit (81) for clamping the wire and a driving member (817) for the discharge clamping unit, and the 2-side clamping and conveying unit (70) for conveying the wire starts preparation for discharge in the middle of returning to the wire cutting and peeling unit (4) after the end treatment is completed, and the discharge clamping unit (81) is brought close to the delivery point in a state capable of being clamped before the wire does not reach the delivery point. In other words, at a time before the 2-side clamping portion (71) reaches a position where the electric wire is delivered to the discharge clamping portion (81), the discharge clamping portion (81) starts an operation of receiving the electric wire from the 2-side clamping portion.
Before the wire does not reach the delivery point, the discharge clamping part (81) is close to the delivery point in a state capable of being held, thereby shortening the delivery time.
The second wire cutting and peeling device (4) of the present invention is a wire cutting and peeling device (4) comprising: a cutter blade (42) and a stripper blade (41, 43) which are arranged along the length direction of the electric wire, wherein the cutter blade (42) cuts the electric wire, the stripper blade (41, 43) forms a notch on the coating of the electric wire, and the electric wire cutting and stripping device (4) is characterized in that the electric wire cutting and stripping device (4) comprises: a stripping blade holder (441) reciprocally driven in a crossing direction with respect to a longitudinal direction of the electric wire, for holding the stripping blades (41, 43); a wire clamping part (20, 70) which moves the wire with the notch formed in a direction away from the peeling knife (41, 43) to scrape the coating peeling scraps from the wire; a suction duct (50) for sucking and discharging the peeled coating (peeled chips) and disposed laterally to the peeling blades (41, 43); and an inlet gate (412) which is disposed on the side of the peeling blades (41, 43) opposite to the suction pipe (50) and opens and closes a passage through which the power supply line enters.
An inlet gate (412) (suction auxiliary component) for opening and closing a passage through which the power supply line enters is mounted on a peeling knife holder (441), when the peeling knife is opened, a wire passing portion is ensured, and when the peeling knife is closed, the passage is blocked by interlocking with the movement of the blade, so that the opening of a space sucked by the suction pipe (50) is narrowed. This improves the attractiveness of the coating scraps and reduces the diffusion of the flaking scraps.
In the second wire cutting and stripping device (4) of the present invention, it is preferable that the inlet gate (412) is mounted and fixed on the stripper blade holder (441 ') and is lifted and lowered together with the holder (441').
In this example, the inlet gate (412) is attached to the peeling blade holder (441), and the opening of the wire passing portion is secured when the blade is opened by the vertical movement of the peeling blade, and the passage is blocked by the movement of the blade when the blade is closed, so that the suction of the coating chips is improved and the spread of the peeling chips is reduced.
The manufacturing method of the terminal-treated wire of the invention comprises the following steps: the wire having a core wire and an outer peripheral coating is cut into a predetermined length, and then the coating is peeled off, and then an end treatment is performed, characterized in that the cutting and peeling device (4) or the end treatment wire manufacturing device (1) is used.
ADVANTAGEOUS EFFECTS OF INVENTION
As is apparent from the above description, according to the present invention, it is possible to provide an apparatus and a method capable of improving productivity and quality in an end-treated wire manufacturing process including a wire cutting and peeling process or a terminal crimping process.
Drawings
Fig. 1 is a plan view schematically showing the overall structure of a terminal crimping wire manufacturing apparatus 1 including a cutting and peeling apparatus 4 according to an embodiment of the present invention.
Fig. 2 is a perspective view showing the overall structure of the wire cutting and peeling device 4 according to the embodiment.
Fig. 3 is an enlarged side view showing a portion of the cutter 42 and the barking blades 41 and 43 of the wire cutting and barking device 4 of fig. 2.
Fig. 4 is a diagram illustrating a peeling process in the peeling apparatus of fig. 3, (a) is a state in which the wire is put between the blades, (B) is a state in which the cutter is close to the wire when the length is determined to be cut, (C) is a state after the length is determined to be cut (cut-off is completed), (D) is a state in which the wire is contacted by the peeling blade, (E) is a state in which the peeling blade cuts into the coating of the wire and then the wire is peeled with the front and rear sides thereof being separated from the peeling blade, and (F) is a peeling completion state.
Fig. 5 is a front view of the peel-off chip suction duct 50 from the rotary guide 160 to the blade 140 in the terminal crimping wire manufacturing apparatus according to the embodiment of the present invention.
Fig. 6 is a front view of the device of fig. 5, showing in enlarged scale the outlet portion of the rotary guide 160, the blade unit, and the flaking debris aspiration conduit 50.
Fig. 7 is a plan view for explaining a plan view of the swing guide 160 and a state of the wire head being released during the swing in the oblique feeding mode of the wire cutting, peeling, and terminal crimping device according to the embodiment of the present invention.
Fig. 8 is a plan view for explaining an example of the operation of the 2-side clamping portion 71.
Fig. 9 is a perspective view showing the 2-side clamping portion 71 and the wire sway suppression portion 719 attached to the 2-side clamping portion 71.
Fig. 10 is a front view for explaining the action of the wire sway suppression portion 719. The (a) is a state in which the shake suppressing portion 719 is open, (B) is a state in which the shake suppressing portion 719 is being closed, and (C) is a state in which the shake suppressing portion 719 is closed.
Fig. 11 is a perspective view for explaining the structure and operation of the discharge clamp 81 according to the embodiment. The case (a) where the holding portion 81 is near the 2-side electric wire W2 is discharged, (B) the case immediately before the holding portion 81 grips the electric wire W2, and (C) the case where the holding portion 81 grips the electric wire W2.
Fig. 12 is a front view showing details of the operation of the discharge clamp 81 of fig. 11 to receive the 2-side wire W2. The (a) is a case where the discharge clamp 81 is located at the wire receiving standby position, (B) is a case where the 2-side wire W2 approaches the receiving position and the clamp 81 is immediately before the wire W2 is gripped, and (C) is a case where the clamp 81 grips (receives) the wire W2.
Fig. 13 is a front view showing the structure and operation of the inlet shutter 412 of the blade 140. (A) An open (down) state and a closed (up) state.
Fig. 14 is a schematic plan view showing an arrangement of equipment of a terminal crimping wire manufacturing apparatus according to another embodiment (non-rotary type, wire parallel lateral movement type).
Fig. 15 (a) is a top cross-sectional view of a main portion of the cutting and peeling device 204 including an air blowing member that blows off the coating chips SI from the peeling blades 241 and 243. (B) A top cross-sectional view showing details of the blower module 381, the peeling knives 241 and 243, and the coating scraps SI in an enlarged manner.
Fig. 16 is a side cross-sectional view of the main portion of the device shown in fig. 15.
Fig. 17 is a front view showing the up-and-down operation of the blower module 381 of the apparatus shown in fig. 15, (a) showing the up time (when the wire is traveling laterally), and (B) showing the down time (when the peeled blower is cut off).
Fig. 18 is a view of the periphery of the cutting and peeling portion 204 in the wire feeding state in the terminal crimping wire manufacturing apparatus according to the second embodiment, (a) is a top cross-sectional view, and (B) is a side cross-sectional view.
Fig. 19 is a view of the periphery of the cut-and-peel portion 204 in the clamped state of the 2-side wire clamping portion of the apparatus of fig. 18, (a) being a top cross-sectional view, and (B) being a side cross-sectional view.
Fig. 20 is a plan view showing lateral movement and feeding of the wire from the guide plate 360 to the cut peeling section 204 in the case of pressing a relatively small terminal to the wire of the wire end.
Fig. 21 is a plan view showing lateral movement and feeding of the wire from the guide plate 360 to the cut-and-peel portion 204 in the case of crimping a relatively large terminal to the wire of the wire end.
Fig. 22 is a side cross-sectional view showing the operation of the cutter 242 and the peeling blades 241 and 243 in the case where the peeling length is normal (relatively short).
Fig. 23 is a side cross-sectional view showing the operations of the cutter 242 and the peeling blades 241 and 243 in the case where the peeling length of the one-sided end portion is extremely long (one-sided length removal).
Fig. 24 is a side cross-sectional view showing the operations of the cutter 242 and the peeling blades 241 and 243 in the case where the peeling lengths of the end portions on both sides are extremely long (both side lengths are removed).
Description of the reference numerals
1. A terminal crimping wire manufacturing device; 4. cutting off the peeling part (device); 10. a wire supply section; 20. a clamping and conveying part; 21. a swing mechanism (swing driving member); 23. front-rear mechanism (length driving part); 25. a side clamping part 1; 40. a blade unit; 41. a peeling knife; 42. a cutting knife; 43. a peeling knife; 44. a cylinder (cutter drive actuator); 45. a slide block; 47. a ball screw; 50. peeling off the debris suction pipe; 50d, plates; 60. a 1-side crimping machine (terminal crimping section, end processing section); 70. a clamping and conveying part; 71. a 2-side clamping part; 73. front-rear mechanism (length driving part); 75. a swing mechanism (swing driving member); 81. discharging the clamping part; 90. a 2-side crimping machine (terminal crimping section, end processing section); 140. a knife section; 141. 142, tongue-like pieces; 160. a swivel guide; 160d, left end; 161U, upper plate (guide plate); 161B, lower plate (guide plate); 161W, front wall; 161Wm, boundary; 161x, right end; 412. an inlet gate; 412b, a standing piece; 412d, upper end; 441. a dehider knife holder; 441g, recesses; 443. a cutter holder; 443g, a knife fixing part; 443k, extension; 443y, a lever connecting portion; 448. a piston rod; 448b, a loop hook; 711. clamping claws; 712. a fulcrum; 714. a claw arm; 715. a connecting rod; 716. a clamping module; 717. a cylinder; 719. a wire sway suppression section; 811. clamping claws; 812. a fulcrum; 815. a connecting rod; 816. a clamping module; 817. a cylinder; SI, coating scraps; w1, 1 side wire; w2, 2 side wires; CW, core wire; TL1, large 1-side terminal; TS1, small-sized 1-side terminal; 204. cutting off the peeling device; 210. a wire supply section; 220. a 1-side wire conveying section (1-side clamping conveying section); 221. a lateral travel mechanism; 223. a front-rear mechanism; 225. a side clamping part 1; 240. a blade unit; 241. 243, a peeling knife; 241b ', 243b', blade-type concave portions; 242. a cutting knife; 250. peeling off the debris suction pipe; 260. a 1-side terminal crimping machine (1-side end processing unit); 269. a 1-side wire end detector; 270. a 2-side wire conveying section (2-side clamping conveying section); 271. a 2-side clamping part; 271b, 271c, claw; 272. clamping a moving part (arm); 273. a clamping front-rear mechanism; 274. a lateral travel mechanism; 281. discharging the clamping part; 282. a discharge tray; 290. a 2-side crimping machine (2-side end processing unit); 299. a 2-side wire rear end detector; 341. 342, tongue-like pieces; 360. a guide plate; 360b, left side end (bevel); 360f, rear side (bevel); 360j, front side, right side portion (plane); 360p, a fore-head direction extension; 380. a blower member; 381. a blower module; 381b, 381c, blast holes; 381h, air guide holes; 381j, air guide holes; 383. a pipe connection member; 383b, an air flow path; 387. an air pressure tube; 390. a wire receiving unit; 390U, upper plate; 390B, lower plate; 390W, left wall; 392. a wire receiving part moving member; 394. a cover; 541. a dehider knife holder; 543. and a cutter holder.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Referring to fig. 1, an overall structure of a terminal crimping (end processing) wire manufacturing apparatus including the wire cutting and stripping device (section) 4 and the terminal crimping machines 60, 90 of the present invention will be described.
The directions of fig. 1 are so called as follows.
Up and down direction of the figure: wire feeding direction, front-rear direction
Left-right direction of the drawing: left-right direction and transverse direction
Upward direction of the drawing: front, front head
The lower direction of the figure; after and start up
The terminal crimping wire manufacturing apparatus 1 is provided on a machine (stage) 3, and includes the following main parts.
The wire supply unit 10: arranged below in fig. 1, wires are drawn from a wire harness (not shown) wound in a spiral shape, and supplied to the upper side of the figure (wires are discharged in the longitudinal direction).
1-Side wire feeding section 20: the device comprises: a side clamping portion (chuck) 25 for clamping a tip (head) of the supplied wire; a front-rear mechanism 23 that slides (advances and retreats) the 1-side clamping portion 25 in the wire length direction; and a turning mechanism 21 for turning the front-rear mechanism 23. The 1-side gripping portion 25 grips the front end of the trailing portion of the wire (the trailing end of the wire being further connected to the coil, referred to as "1-side wire") that is fed and cut to a predetermined length, and feeds the wire between the cutting and peeling portion 4 and the 1-side terminal crimping machine 60 (feed path reference arrow). The holding claws of the 1-side holding portion 25 are configured to be opened and closed by a cylinder drive, and are opened and closed in accordance with the wire feeding and discharging. A tube (not shown) for guiding the discharge of the electric wire (see thick arrow) is disposed in the front-rear mechanism 23 of the 1-side wire feeding unit 20.
Wire cutting and peeling part 4: the wire fed from the supply unit 10 via the 1-side wire feeding device 20 is cut to a predetermined length, and the coating of the front end (head) and the rear end (tail) of the wire cutting unit is peeled (removed). A suction pipe 50 for sucking the peeled coating (peeled chips) and discharging the same is attached to the right side of the drawing of the cutting peeling section 4.
1-Side crimping machine (end processing section) 60: the terminal is crimped to the front end of the cut and stripped 1-side wire. A 1-side wire end detector (optical inspection) 69 is attached to the right side (side closer to the peeling section 4) of the drawing of the 1-side crimping machine 60. The 1-side wire end detector (optical inspection) 69 confirms the peeled state of the wire end, the crimped state of the terminal, and the plug insertion state.
2-Side wire feeding unit 70: the device comprises: a 2-side clamping portion 71 that clamps a rear end (tail) of the electric wire (referred to as a 2-side electric wire) cut into a predetermined length in the electric wire cutting and peeling portion 40; a front-rear mechanism 73 that advances and retreats the 2-side clamping portion 71 in the wire axial direction; and a turning mechanism 75 for turning the front-rear mechanism 73. The 2-side clamping portion 71 feeds the rear end of the 2-side wire between the peeling section 4 and the 2-side crimping machine 90. Although not shown in fig. 1, a discharge mechanism (discharge nip 81, see fig. 11 and 12) that intersects the electric wire (product) having the terminals crimped at both ends is further provided in the vicinity of the 2-side electric wire feeding device 70.
A 2-side crimping machine (end processing unit) 90: the terminal is crimped to the rear end of the cut and stripped 2-side wire. A 2-side wire rear end detector (optical inspection) 99 is attached to the left side (side closer to the peeling section 4) of the drawing of the 2-side crimping machine 90. The 2-side wire rear end detector (optical inspection) 99 confirms the peeled state of the 2-side wire rear end, the crimped state of the terminal, and the plug insertion state.
Referring to fig. 2, the wire cutting and peeling section (device) 4 according to the embodiment will be described. Fig. 2 is a perspective view showing the entire structure of the wire cutting and peeling section 4. The left-right direction in fig. 2 is a direction for the viewer and does not match the left-right direction in fig. 1.
In fig. 2, a pair of front end stripping blades 41, 41', cutting blades 42, 42', and rear end stripping blades 43, 43' (so-called series arrangement of cutting blades, stripping blades) are shown arranged in the longitudinal direction (wire feeding direction, front-rear direction) of the wire to be processed. The aggregate of the respective blades 41, 42, 43 is also sometimes referred to as a blade unit.
The blades 41, 42, 43 are rectangular plate-like extending vertically, and the base portions of the blades are fixed to the blade holders 441, 443. Cutting edges are formed at the tip end portions (opposite side of the base, lower end portion of the upper blade, upper end portion of the lower blade) of the respective blades. In addition, the center of the tip of the knife in the lateral direction is recessed in a V shape. When the upper and lower blades are crossed and overlapped in the front-rear direction, the electric wire is centered in the left-right direction of the blades by the V-shaped portion.
The holders 441 of the peeling blades 41 and 43 are U-shaped in a plan view, and the respective blades are fixed to the front and rear end surfaces of the holders 441. The right end face of the holder 441 is fixed in contact with the left end face of the slider 45. The slider 45 is driven up and down by a ball screw 47 (details will be discussed later). The recess 441g in the U-shape of the holder 441 serves as a space for the cutter 42 and the holder 443 to move up and down.
The base portion (the opposite side portion of the cutting edge) of the cutter 42 is fixed to the rear side surface of the cutter holder 443. The holder 443 includes a rectangular and thick plate-shaped blade fixing portion 443g on the cutting blade 42 side, an extension portion 443k connected to the upper portion of the blade fixing portion 443g, and a lever connecting portion 443y connected to the upper portion of the extension portion 443 k. The rod connecting portion 443y is connected to the piston rod 448 of the cylinder 44, and the cutter 42 and the retainer 443 are driven up and down by the cylinder 44.
The wire cutting and peeling device 4 of this embodiment is characterized by comprising a cylinder 44, and the cylinder 44 reciprocally drives a cutter blade 42 mounted on a slider 45 reciprocally driven in the intersecting direction (in the embodiment, the up-down direction) in the intersecting direction of the wire length direction, and a cutter blade holder 443 for holding the cutter blade 42.
The "intersecting direction" is generally a direction perpendicular to the longitudinal direction, and is a vertical direction (however, the present invention is not limited thereto, and may be a horizontal direction). In the present embodiment, the slider 45 is opened and closed by a motor (not shown) and a ball screw 47, which are mechanisms capable of precise positioning. The reason for this is that the pair of vertically opposed stripping blades 41, 43 must stop at a subtle position where the tip does not intrude into the core wire of the wire and the coating is cut to an appropriate depth at a position (closed position) where they are close to each other. Since the diameter and the coating thickness of the electric wire are various, the peeling blade needs to be precisely controlled in the cutting position.
Specifically, the cutting/peeling device 4 of the present embodiment is configured to have a main structure including a vertically extending pillar 48. A ball screw 47 extending vertically in the same manner is rotatably attached to the column 48. The ball screw 47 has spiral grooves cut in opposite directions at its upper and lower portions. Ball nuts (not shown) inside the upper and lower sliders 459, 459' are screwed into the helical grooves. According to this configuration, when the ball screw 47 rotates in a certain direction and in the opposite direction, the upper and lower sliders 459, 459' are reciprocally driven to approach each other or to separate from each other.
On the other hand, the cutter blade 42 may be required to completely cut the electric wire, and thus, the positioning accuracy of the closed position where the upper and lower pairs of blades overlap is not required. Therefore, the pair of opposing cutting blades of the cutting blade are driven at high speed by the air pressure cylinder (cutting blade driving actuator). In the open position of the cutter blade 42 (the position away from the wire avoiding position), if the V-shaped or other opposing cutting edge does not retract to a considerable extent from the space where the wire is present or traveling, the blade may inadvertently contact the wire and damage the wire. In such a situation, since the stroke of the cutter is long, it is important to shorten the working time and the tact time by increasing the moving speed. According to the characteristics of each blade, in the present embodiment, electric power and cylinder driving are combined. Further, by mounting the cylinder on the slider, the time (distance) until the wire is cut can be shortened in combination with the movement of the slider by the operation of the electric ball screw. In addition, the number of components and the structure of preventing interference with the slider can be reduced in terms of the arrangement structure and the number of components.
Next, an example of the operations of the cutter 42 and the peeling blades 41 and 43 will be described with reference to fig. 3 and 4.
Fig. 3 is a side view of the set of the cutter blade 42 and the dehider blades 41, 43 (blade unit 40) and the wire W to be cut and peeled. The arrow attached to the wire W is the feeding direction of the wire W. The figure shows a pair of first peeling blades 41, a cutter 42, and a second peeling blade 43, which are arranged in the "back" to "front" direction. Each knife is driven up and down by the aforementioned mechanism. The state of fig. 3 is a state in which the electric wire W is supplied.
Fig. 4 is a diagram illustrating a peeling process in the peeling apparatus, in which (a) the electric wire is put between the respective blades (retracted), (B) the cutting blade 42 and the peeling blades 41 and 43 are brought close to the electric wire, (C) the cutting completion state for length determination, (D) the cutting blade is retracted and the peeling length is set, (E) the peeling blade is cut into the electric wire coating state, and (F) the electric wire is pulled back and forth (away from the peeling blade) and the peeling is completed.
In the state where the electric wire of fig. 4 (a) enters between the respective blades, the cutoff blade 42 and the peeling blades 41, 43 are retracted from the traveling path of the electric wire W (the upper blade is retracted upward, and the lower blade is retracted downward). Although not shown, the terminal is press-connected to the front end (tip, head) of the electric wire W in the preceding step (the terminal press-connected to the tip of the electric wire is referred to as a head terminal T1). And, a length corresponding to the length dimension of the product is fed forward. From the state of fig. 4a to the state of fig. 4F, the 1-side clamping portion 25 and the 2-side clamping portion 71 hold the wire W before and after the peeling portion 4 is cut (not shown).
Fig. 4 (B) shows a state in which the cutter blade 42 and the peeling blades 41 and 43 are slightly close to the electric wire. The movement from the state (a) of fig. 4 to the state (B) of fig. 4 is performed by the driving (sliding of the slider 45) of the motor or the ball screw. In the state of fig. 4 (B), both tips of the V-shaped cutting edges of the peeling blades 41 and 43 are located substantially at the height of the wire feeding axis. Therefore, the shake of the wire W in the right-left direction is restricted so that the wire W does not go out of the stripping blades 41, 43.
Fig. 4 (C) shows a state in which cutting for wire length determination is completed. The cutting blades 42 and 42' are driven at high speed by the air cylinder 44 from the state of fig. 4 (B), and in fig. 4 (C), the widthwise central portions of the cutting edges of the upper and lower blades overlap. As described above, the cut-off front wire is referred to as a 2-side wire W2, and the cut-off rear wire is referred to as a 1-side wire W1.
Fig. 4 (D) shows a state in which the cutting blades 42 and 42' are retracted from the electric wire by the driving of the air cylinder 44. The wire W is moved in the longitudinal direction according to the peeling length thereof. That is, the 1-side wire W1 is pulled backward with respect to the cutting time of fig. 4 (C), and the 2-side wire W2 is pulled forward with respect to the cutting time of fig. 4 (C). The pulling operation of each wire is based on the back-and-forth operation of each clamping portion 25, 71 that grips the end of each wire. The stripping blades 41, 43 are close to the coated surface of the wire.
In the steps (C) and (D) of fig. 4, the air cylinder 44 is used to operate the cutter blade 42 alone at a high speed, so that the cutter blade 42 can be moved during the stop of the peeling blades 41 and 43 and also during the movement in the opposite direction, and thus the time for the cutting and coating peeling step can be shortened. In the cutting/peeling device 4 of the present embodiment, the peeling length is also easily made to be slightly longer than the "peeling blade-cutting blade interval". That is, the wire clamping portions 25 and 71 alternately advance the 1-side wire W1 or retract the 2-side wire W2 after the wire cutting and the retracting of the cutting blade 42 within a range where the wire clamping portions do not interfere with the cutting and peeling device 4 or the wire on the opposite side is bent due to the interference, etc., and even then the front and rear ends of the wire do not touch the cutting blade 42.
Fig. 4 (E) shows a state in which the stripping blades 41 and 43 are cut into the wire coating. The movement from fig. 4 (D) to fig. 4 (E) is performed by the driving of the motor and the ball screw (sliding of the slider 45).
Fig. 4 (F) shows a state where the wire is pulled back and forth (away from the stripping blade) and stripping is completed. The pulling operation of each wire is based on the back-and-forth operation of each clamping portion 25, 71 that grips the end of each wire. The peeled coating chips (not shown) are sucked into the peeling chip suction duct 50 by negative pressure from the inner sides (the side of the cutoff blade 42) of the peeling blades 41, 43, and discharged.
In the cutting/peeling device 4 of the embodiment, the linear motion operation of the cylinder and the ball screw can be combined into an operation that can be individually operated (or simultaneously operated). In one example of the result, the moving distance of the cutter 42 during the 1 takt time (fig. 4a to fig. 4 a) is 10mm, which is 4.5mm shorter than 14.5mm in the case of the comparative example in which the cutter and the peeling blade operate in the same operation. When the difference in the moving distance is divided by the average moving speed of the cutter 42 by 300 mm/sec, the time difference becomes 0.015 sec. In other wire cutting and peeling processes, the time is shortened, and the overall operation tact can be intentionally shortened by combining with improvements in peripheral devices to be discussed later, and productivity can be improved.
The structure of guiding the 1-side wire W1 from the 1-side crimping machine 60 to the cutting and peeling section 4, that is, the structure from the turning guide 160 to the blade section 140 will be described with reference to fig. 5 to 7.
Fig. 5 is a front view (view viewed in the wire feeding direction) of a portion of the terminal crimping wire manufacturing apparatus according to the embodiment of the present invention from the rotary guide 160 to the blade 140 and the peel-off chip suction pipe 50.
Fig. 6 is an enlarged front view showing the outlet portion of the rotary guide 160 and the blade portion 140 of the apparatus of fig. 5.
Fig. 7 is a top cross-sectional view for explaining a top shape of the rotary guide 160 and a discharge state during rotation of the wire head in the oblique feeding mode of the wire cutting, peeling, and terminal crimping device according to the embodiment of the present invention.
Fig. 5 shows a swing guide 160 extending from left to right, a blade 140 at the front end of the swing guide 160, and a peeling debris suction duct 50 at the right side of the blade 140. Although not shown, a 1-side crimping machine 60 is provided on the left side of the left end 160d of the turning guide 160, and the 1-side crimping machine 60 crimps the head terminal T1 to the front end portion of the 1-side electric wire W1. The knife portion 140 is a generic term for the upper and lower peeling knives 41, 41 'and the upper and lower cutting knives 42, 42'.
The swing guide 160 is a guide plate (cover) as follows: the electric wire is guided in a direction (vertical direction, not limited to the standard) intersecting the direction of rotation (horizontal direction, not limited to the standard) along the rotation path of the front end portion of the electric wire. In the wire turning process, the wire may be fed (discharged) in the longitudinal direction (oblique feeding), and in this case, the turning guide 160 may guide the wire end in the longitudinal direction. The revolving guide is preferably made of a material having a smooth surface, such as a stainless steel cold-rolled sheet.
The swing guide 160 has upper and lower plates 161U and 161B which face each other vertically, and an upright planar front wall 161W connected to the rear ends (front ends) of the two plates. One side (rear side) of the supply portion 10 of the swing guide 160 has no wall and is not obstructed. Further, the front wall 161W is present from the left end 160d of the revolving guide 160 to a boundary 161Wm at the substantially center of the revolving guide 160, and the right side of the boundary 161Wm has no inner (front) wall and is not obstructed.
The dimension (guide height) between the upper plate 161U and the lower plate 161B of the rotary guide 160 becomes smaller (lower) from the left (1-side crimping side) to the right (the peeling section 4 side). That is, the swing guide 160 has a horn shape with a wide width on the press side and a narrow width on the peeling section side. The 1-side wire W1 with the head terminal T1 is fed while being guided up and down in the trumpet-shaped space.
The height HA of the crimping machine side (left end 160d, wire inlet) of the swing guide 160 is a height sufficient to receive the wire head released from the crimping machine to shake, for example, 40mm. The height HB of the turning guide 160 on the cutting and peeling section 4 side (right end 161x, wire outlet) is, for example, 10mm. The inlet and outlet are concepts that the wire returns from the 1-side crimping machine 60 to the cutting peeling section 4 after crimping the head terminal T1. The concept of coming in and going out is reversed when the wire goes from the cutting and peeling section 4 to the 1-side crimping machine 60.
As shown in fig. 7, the 1-side wire W1 after the terminal crimping is conveyed to the cutting and peeling section 4 by the inner side of the turning guide 160 while being turned by the 1-side clamp 25 (see also fig. 1). At this time, the tip end portion of the terminal-equipped wire is fed into the wire feeding path of the blade 140 while the shake (head shake, runout) thereof is reduced. Further, the wire remains in the winding tendency of the coil, and therefore, the head swings in a convoluted manner, and therefore, if the swing up and down is suppressed, the swing from side to side is also incidentally reduced. As a result, the left-right shake of the wire fed to the blade 140 is easily stabilized, and the time required to wait for the stabilization of the wire (the time required to wait for the wire to be fed in the longitudinal direction and the wire to be cut) is shortened, and the tact time can be shortened accordingly.
Details of the cutter unit 140 will be described with reference to fig. 6 and 3. Fig. 6 and 3 are enlarged views showing the blade 140 and its periphery, fig. 6 being a front view and fig. 3 being a side sectional view.
As best shown in fig. 3, the blade 140 includes tongue-shaped pieces 141, 141', 142' formed of sheet metal (an example). The upper tongue 141 on the rear side is inserted between the upper first dehider 41 and the upper cutter 42 from right to left (from the back surface of the paper of fig. 3). The lower tongue 141' on the rear side is similarly inserted between the lower peeling blade 41' and the lower cutting blade 42'. The front upper and lower tongue pieces 142, 142' are similarly interposed between the upper and lower cutter blades 42, 42' and the peeling blades 43, 43', respectively.
In a front view, each tongue piece is cantilever-connected to the left side of the upper and lower plates 50d, 50d' of the peeled-off debris suction pipe 50, as shown in fig. 6.
An example of the movement of the 1-side wire W1 from the 1-side crimping machine 60 to the cutting and peeling section 4 will be described with reference to fig. 7. Fig. 7 is a plan view showing an example of movement (oblique feeding) of the 1-side wire W1 and a plan view of the rotary guide 160. In the figure, 1-side wires W1-1 to W1-4 fed in the revolution and longitudinal direction, head terminals T1-1 to T1-4 press-contacted to the tips of the 1-side wires W1-1 to W1-4, and 1-side clamps 25-1 to 25-4 are shown.
The uppermost wire W1-1 shown in fig. 7 is a case where the turn starts after the terminal crimping. The electric wire W1 is held by the 1-side holding portion 25. The 1-side clamping portion 25 is slidable in the longitudinal direction of the wire in the front-rear mechanism 23, and the front-rear mechanism 23 is rotatable by the rotation mechanism 21. The uppermost clip portion 25-1 is in a state slightly retracted from the most advanced position. The front-rear mechanism 23 and the turning mechanism 21 are not shown in the figure for the 2 nd to 4 th wires from above.
The 2 nd wire W1-2 from the top is slightly turned downward in the figure. The wire W1-2 and the terminal T1-2 advance slightly (in accordance with the length S1) in the wire longitudinal direction together with the grip portion 25-2 for gripping the wire. The terminal T1-2 of the 2 nd wire W1-2 enters the turn guide 160, suppressing the sway of the terminal T1-2.
The 3 rd wire W1-3 from above in the figure is slightly turned further downward in the figure. The holding portion 25-3 holding the electric wire does not advance from the position of the second holding portion 25-2 and is located at the same position as the position in the longitudinal direction of the electric wire. On the other hand, the wire W1-3 is fed out slightly (corresponding to the length S2) in the wire longitudinal direction by the feeding portion 10 (see fig. 1), and the protruding dimension of the head terminal T1-3 from the clamping portion 25-3 becomes longer (oblique feeding is performed). In this state, however, the head terminal T1-3 enters the front-head-direction extending portion 161P of the wire cutting and peeling portion 4 of the turning guide 160, and is also prevented from being shaken and from being damaged by feeding in an oblique direction.
The 4 th wire W1-4 from the top in the figure is further turned downward in the figure, reaches the cutting and peeling section 4, and enters the blade section 140. The holding portion 25-4 holding the electric wire does not advance from the position of the second holding portion 25-2 and is located at the same position as the position in the longitudinal direction of the electric wire. In this state, the wire W-4 is discharged in the wire longitudinal direction so as to have a predetermined length for cutting the wire.
In the terminal crimping wire manufacturing apparatus 1 shown in fig. 5 to 7, after terminal crimping, the 1-side wire W1 having a considerable swing and bending of the end portion enters the inlet side of the turn guide 160 expanded like a flare. Further, while traveling in the turning guide 160 that is gradually narrowed (made lower), the swinging and bending of the electric wire are suppressed, and the electric wire is guided between the pair of cutting blades 42 and the peeling blades 41 and 43 that face each other vertically in the electric wire cutting and peeling section 4. The wire end portion performs a rotational motion (due to the winding tendency of the coil of the wire) including up-and-down (crossing direction of the traveling direction of the revolution) shake and left-and-right (traveling direction thereof) shake, but if the up-and-down shake is suppressed by the guide plate of the revolution guide, the left-and-right shake becomes small.
In the present embodiment, the turning guide 160 can also suppress wire bouncing and rattling at the time of wire supply (at the time of payout) due to the turning guide of the 1-side wire W1 and the wire entry guide at the final stage of turning to the blade. Therefore, the deflection of the wire and the shaking of the head of the wire can be suppressed, and the occurrence of a failure (damage of the crimp terminal, stoppage of the equipment due to the seizing of the wire and the terminal) with the oblique feeding can be prevented. As a result, the oblique feeding can be stably used constantly, and an increase in the number of types of wires (wire diameters, etc.) that can be fed obliquely, and an increase in the discharge size of the oblique feeding can be achieved, and the manufacturing tact time can be shortened for a plurality of terminal crimping wires (wire harnesses).
When the opening degree=avoiding dimension of the cutting blade and the peeling blade waiting for the wire to come between the pair of opposing blades is as narrow as possible, the wire cutting and cladding cutting drive dimensions and time of the blade become short, and the drive tact time becomes short. Further, even if the rotation speed is increased, the rotation speed can be increased and the waiting time for the wire end portion to stabilize in the blade can be shortened when the wire in the blade is stabilized by shaking. Thus, the takt time for wire manufacturing can be shortened (about 0.01 sec). The retreat size of the peeling knife can be further reduced, and the electric feeding time of the peeling knife can be shortened. And (3) confirming: the overall tact reduction, including effects brought about by the dual actuators of the cutting units, can be reduced from about 0.81 seconds to 0.7 seconds in one example of the wire size of 0.5 square mm.
The operation of the 2-side clamping portion 71 will be described with reference to fig. 8. Fig. 8 is a schematic plan view for explaining an example of the operation of the 2-side clamping portion 71. Further, referring to fig. 9, the structure of the 2-side clamping portion 71 and the wire sway suppression portion 719 thereof are discussed later.
The operation of the 2-side clamping portion 71 in this embodiment is characterized as follows. That is, the 2-side clamping portion (71) retreats (protrudes toward the supply start side) before receiving the rear end portion of the electric wire coming out of the cut-and-peel portion 4. Thus, the wire projects from the holding portion in a short length at the time of wire receiving and at the time of subsequent revolution, and thus the wire is less shaken, swung, and disturbed, and the wire is stably received.
The peeling blades 41, 43 and the cutter 42 for cutting the peeling part 4 are shown in the upper left of fig. 8. The 2-side clamping portion 71 disposed on the front side of the cutting and peeling portion 4 receives the rear end portion of the electric wire (the tip terminal T1 is crimped at the tip) coming out of the cutting and peeling portion 4. At this time, the wire shake suppressing portion 719 (see fig. 9 and 10, which will be discussed later) suppresses the wire from being disturbed, and the 2-side clamping portion 71 grips the wire. At this wire receiving timing, the wire has not been cut, nor is the stripping of the rear end (tail) of the 2-side wire performed.
Next, the wire is cut by the cutter blade 42, and then the 2-side clamping portion 71-1 is slightly advanced (by the front-rear mechanism 73), and the peeling length is adjusted (see fig. 4C and 4D). This state is the state of the 2-side wire W2-1 of fig. 8. The 2-side clamping portion 71-5 drawn at the same position as that of the 2-side clamping portion 71-1 indicates a clamping portion in a state where the next wire is to be received after the series of clamping operations described above are completed.
Next, the 2-side clamping portion 71 is further advanced to peel off the wire coating (the peeled off chips of the coating remain on the rear side of the peeling blade 43, see fig. 4 (E) to 4 (F)). This state is a state of the 2-side electric wire W2-2 and the 2-side clamp portion 71-2. Further, the advancing dimension of the 2-side grip portion 71-2 does not correspond to the scale of the drawing (fig. 8 is a schematic drawing).
Next, the 2-side clamping portion 71-2 is pivoted downward (rightward) in the drawing toward the press-bonding machine (90) (driven by the pivoting mechanism 75). Further, the inspection of the peeled state or the like is performed by a detector 99 (see fig. 1) for the rear end portion of the 2-side wire in the middle of the rotation.
When the 2-side clamping portion 71-2 is pivoted to the position of the crimping machine (90), the electric wire is advanced to the crimping position and brought to the front of the 2-side crimping machine 90 (reference numeral 71-3). Here, the tail terminal T2 is crimped to the rear end of the 2-side wire W2-3.
After the crimping, the 2-side clamping portion 71-3 starts the return rotation operation toward the peeling portion 4. In the middle of the return turn, the 2-side clamp portion 71-4 delivers the completed both-end terminal crimp electric wire W2-4 (product) to the discharge clamp portion 81 at the delivery position to the discharge clamp portion 81. Further, for the discharge nip 81, refer to fig. 11, 12, and are discussed later.
The 2-side nip 71 retreats (protrudes toward the supply start side) during the rotation from the delivery position (2-side nip 71-4) to the position (2-side nip 71-5) before the peeling section 4 is cut. Thus, when the next wire is received, the protruding dimension of the wire from the clamping portion becomes short, the wire is shaken, swung, and disturbed, and the wire is received and conveyed stably.
The structure and operation of the 2-side clamping portion 71 and the wire sway suppression portion 719 thereof will be described with reference to fig. 9 and 10.
Fig. 9 is a perspective view showing the 2-side clamping portion 71 and the wire sway suppression portion 719 attached to the 2-side clamping portion 71.
Fig. 10 is a front view for explaining the action of the wire sway suppression portion 719. The (a) is a state in which the shake suppressing portion 719 is open, (B) is a state in which the shake suppressing portion 719 is being closed, and (C) is a state in which the shake suppressing portion 719 is closed.
The 2-side clamping portion 71 has a pair of left and right clamping claws 711 that grip the electric wire. The holding claw is opened and closed by a link 715 and a cylinder 717 about a fulcrum 712 (see fig. 10) at the upper central portions of the pair of claws. The claw 711, the link 715, and the cylinder 717 are attached to the clamping module 716. As shown in fig. 8, the gripping module 716 rotates, advances, and retreats by the front-rear mechanism 73 and the rotation mechanism 75 (see fig. 1).
The root of the pawl 711 is connected to a front pawl arm 714 (part of the link 715). A wire sway suppression portion 719 is connected to the front side of the claw arm 714 so as to protrude forward. As seen from the lower part of fig. 10 (a), the wire sway suppression portion 719 has a wing shape that expands laterally in the open state. The shake suppressing portion 719 is constituted by a pair of right and left plates. The sway suppression portion 719 is in the form of opposing O-legs in the closed state of fig. 10 (C). The wire sway suppression portion 719 is present on the front side of the grip of the 2-side wire W2 released from the cutting and peeling portion 4.
The function of the wire sway suppression portion 719 is described simultaneously with reference to fig. 10. In the open state of fig. 10a (the same applies to the state of fig. 9), the wire is released below the 2-side clamping portion 71, and the sway suppression portion 719 opens above the 2-side wire W2 together with the claw 711. At this time, the wire is also the 1-side wire W1 before cutting and peeling, and is a longer wire connected to the wire reel in the tail end direction. The 1-side clamp 25 (see fig. 1) holds and supports the rear portion of the 1-side wire W1. Therefore, as indicated by the radial arrow in the figure, the distal end portion of the long cantilever-shaped wire swings back and forth and left and right (the wire is discharged while performing a spiral movement).
From this point, as shown in fig. 10 (B), the left and right blades of the wire sway suppression portion 719 are turned downward in a closed manner. During the closing thereof, the electric wire hits the lower surface of the sway suppression portion 719 to suppress sway (deflection) of the electric wire. That is, the wire sway suppression portion 719 (wire guide) follows the clamping action, thereby bringing the wire closer to the center. And, the reaction force of the electric wire to the claw when the clamping part is closed is suppressed.
Fig. 10 (C) shows a state where the wire sway suppression portion 719 is fully closed (the claws 711 are closed to hold the wire). The plates on both sides of the sway suppression portion 719 hang down with a gap between the left and right sides of the electric wire 1. The clearance is a degree to which the wire is restrained from shaking while the terminal is not pressed (the terminal is not deformed). In the case of a short product, the head terminal T1 may come to the rear side in a state of fig. 9, and is held by the sway suppression portion 719. Therefore, when the clamp portion is closed, a certain distance is maintained between the pair of wire sway suppression portions 719 (guides), so that deformation of the terminal is prevented while suppressing movement of the terminal.
The discharge clamp 81 (delivery device) will be described with reference to fig. 11 and 12.
Fig. 11 is a perspective view for explaining the structure and operation of the discharge clamp 81 according to the embodiment. The case (a) where the holding portion 81 is near the 2-side electric wire W2 is discharged, (B) the case immediately before the holding portion 81 grips the electric wire W2, and (C) the case where the holding portion 81 grips the electric wire W2.
Fig. 12 is a front view showing details of the operation of the discharge clamp 81 of fig. 11 to receive the 2-side wire W2. The (a) is a case where the discharge clamp 81 is located at the wire receiving standby position, (B) is a case where the 2-side wire W2 approaches the receiving position and the clamp 81 immediately before the wire W2 is gripped, and (C) is a case where the clamp 81 grips (receives) the wire W2.
The direction "left and right" in fig. 11 and 12 is a direction to the viewer, and sometimes does not match the direction "left and right" of the other figures.
The discharge clamp 81 has a pair of left and right clamp claws 811 for holding the electric wire. The claw is opened and closed by a link 815 and a cylinder 817 centering on a fulcrum 812 at the upper center of the pair of claws. The claw 811, the connecting rod 815, and the cylinder 817 are mounted to the clamp module 816. The clamping module 816 is moved up and down, rotated, and moved left and right by an up-down mechanism, a front-back mechanism, and a rotating mechanism (not shown).
In fig. 11 (a), the 2-side wire W2 crimped with the tail terminal T2 is held by the 2-side holding portion 71. The state of the 2-side wire W2 and the 2-side clamping portion 71 is the state of the wire W2-4 and the clamping portion 71-4 in fig. 8. Then, the claw 811 of the discharge clamp 81 comes above the electric wire between the tail terminals T2 and the 2-side clamp 71, and the claw 811 is opened. From there, the discharge clamp 81 is further lowered.
In fig. 11 (B), the discharge clamp 81 is lowered from the state of fig. 11 (a) and immediately before the wire W2 is grasped.
In fig. 11 (C), the following is the case: the discharge clamp 81 is further lowered (actually, it is moved laterally from right to left as shown in fig. 14) with respect to the state of fig. 11 (B), and the clamp claw 811 clamps the electric wire W2 between the tail end T2 and the 2-side clamp 71. From this, although not shown, the 2-side clamping portion 71 is opened to release the wire, and the discharge clamping portion 81 grips the 2-side wire W2 and conveys it to a product tray (not shown, located in front of the stage 3 in fig. 1). At the product tray, the discharge clamp 81 releases the 2-side wire W2 and delivers the 2-side wire W2 to the product tray.
The detailed operation of the discharge clamp 81 to grasp (receive) the electric wire W2 near the 2-side electric wire will be described with reference to fig. 12.
In fig. 12 (a), the following is the case: the discharge clamp 81 is located at the wire receiving standby position, and the 2-side wire W2 moves (turns around) from left to right to come under the discharge clamp 81.
In fig. 12 (B), the following is the case: the 2-side wire W2 approaches below the receiving position, immediately before the grip portion 81 grips the wire W2. Here, at a time point before the 2-side wire W2 reaches the receiving position (a time point immediately before the arrival), the lowering and closing operation of the discharge clamp 81 is started. This shortens the time for the 2-side wire W2 to pass to the discharge clamp 81 (in one example, shortens 0.05 seconds).
In fig. 12 (C), the claw 811 of the clamp portion 81 grips (receives) the electric wire W2. After that, the discharge clamp 81 delivers the 2-side wire W2 to the discharge tray.
The suction assist component (the inlet shutter 412 of the blade 140) in the modification will be described with reference to fig. 13. Fig. 13 is a front view showing the structure and operation of the inlet shutter 412 of the blade 140. (A) An open (down) state and a closed (up) state.
The entrance gate 412 is an angular (inverted L-shaped) member in front view, and is placed on and fixed to the lower peeling blade holder 441', and is vertically movable together with the peeling blade holder 441'. The rising piece 412b of the inlet shutter 412 rises immediately above the upper surface of the holder 441' at a position close to the left side of the peeling blades 41, 43 and the cutoff blade 42. The width of the rising piece 412b in the front-rear direction (back surface direction of the paper surface of fig. 13) is substantially the same size as the interval between the front and rear peeling blades 41, 43.
The upper end 412d of the rising piece 412b of the inlet shutter is at substantially the same height as the lower end (both of which are substantially the same height) of the swing guide 160 in the open (lowered) state of fig. 13 (a). In the closed (raised) state of fig. 13 (B), the upper end 412d of the rising piece 412B is at substantially the same height as the upper end of the revolving guide 160.
According to the above-described relationship between the vertical directions of the respective parts, in the open (lowered) state of the inlet shutter 412 of fig. 13a, the right end 161x (outlet of the electric wire after terminal crimping) of the revolving guide 160 is fully opened, and the electric wire can pass through these parts without being obstructed. On the other hand, in the closed (raised) state of fig. 13 (B), the right end 161x of the swing guide 160 (the outlet of the electric wire after terminal crimping) is closed by the rising piece 412B.
In this modification, the inlet shutter 412 (suction auxiliary component) is attached to the lower blade module (lower side), and the opening of the wire passing portion is secured when the blade is opened by the upward and downward movement of the removal blade, and the passage is blocked by the movement of the blade when the blade is closed, so that the suction of the coating chips is improved and the spreading of the peeled chips is reduced.
Next, an embodiment of an improved example of the air blast including the coated chips will be described.
Fig. 14 is a schematic plan view showing an arrangement of equipment of a terminal crimping wire manufacturing apparatus according to another embodiment (non-rotary type, wire parallel lateral movement type).
Fig. 15 (a) is a top cross-sectional view of a main portion of the cutting and peeling device 204 including an air blowing member that blows off the coating chips SI from the peeling blades 241 and 243. Fig. 15 (B) is a top cross-sectional view showing details of the blower module 381, the peeling blades 241 and 243, and the coating chips SI in an enlarged manner.
Fig. 16 is a side cross-sectional view of the main portion of the device shown in fig. 15.
Fig. 17 is a front view showing the up-and-down operation of the blower module 381 of the apparatus shown in fig. 15, (a) showing the up time (when the wire is traveling laterally), and (B) showing the down time (when the peeled blower is cut off).
The cutting and peeling device (204) of this embodiment is characterized by comprising: a wire cutting blade (242) and stripping blades (241, 243) which are arranged along the length direction of the wires (W1, W2) and respectively provided with a pair of blades which are opposite to each other in the direction crossing the length direction, wherein the stripping blades (241, 243) form a notch on the coating of the wires; front and rear mechanisms (223, 273) for moving the electric wire in a longitudinal direction (front and rear direction); and a suction duct (250) for sucking and discharging the flaking scraps (SI 1, SI 2) generated by the peeling blades (241, 243), wherein the peeling duct is provided with a member (380) disposed opposite to the suction duct (250) through the peeling blades (241, 243) and blowing toward the bottoms of the blade-shaped concave portions (241 b ', 243 b') of the peeling blades (241 ', 243').
In the device arrangement diagram of fig. 14, the portions indicated by reference numerals 200 added to those of fig. 1 are the same portions as those of the terminal crimping wire manufacturing apparatus of fig. 1. Hereinafter, the differences between the apparatus 1 of fig. 1 and the apparatus 204 of fig. 14 will be mainly described.
The wire supply unit 210 is mounted on the front-rear mechanism 223 of the 1-side clamp unit 225. The 1-side wire feeding section 220 has a 1-side wire clamping section (collet) 225 and a lateral travel mechanism 221 for laterally traveling a front-rear mechanism 223 of the wire clamping section 225. The longitudinal direction (axis) of the wire held to the 1-side grip 225 in the lateral travel is parallel to the wire paying-out direction in the wire cutting and peeling section 204 in a plan view. The 1-side clamping portion 225 clamps the tip of the 1-side wire and reciprocates between the wire cutting and peeling portion 204 and the 1-side terminal crimping machine 260.
The wire cutting and peeling section 204 cuts the wire to a predetermined length as in fig. 1, and peels (removes) the coating of the front end (head) and the rear end (tail) of the wire cutting section. Further, a suction pipe 250 for sucking and discharging the flaking chips is attached. Reference numeral 269 is a 1-side wire end detector (optical inspection).
The 2-side wire feeding section 270 also has a lateral travel mechanism 274 similar to the 1-side wire feeding section 220. Reference numeral 271 is a 2-side wire clamping portion. Reference numeral 273 is a front-rear mechanism 273 that advances and retreats the wire clamping portion 271 in the wire axial direction. The 2-side grip 271 feeds the rear end of the 2-side wire from the cutting peel 204 to the 2-side crimping machine 290. Reference numeral 281 denotes a discharge nip portion that discharges the electric wire (product) whose both end terminals have been crimped to the discharge tray 282. Reference numeral 299 is a 2-side wire rear end detector (optical inspection).
As shown in fig. 15 (a) and 16, the cutting and peeling device 204 includes a blade unit 240, and the blade unit 240 includes a cutter blade 242 for cutting the electric wires W1 and W2, and peeling blades 241 and 243 disposed before and after the cutter blade 242. Each of the blades is a pair of vertically adjacent and separated blades driven in the vertical direction. In this specification, when the lower blade is specifically mentioned, the reference numeral is added with a "symbol" (lower rear side peeling blade 241', etc.). The reference numerals without' are for a group of what is called upper and lower knives and for a particular upper knife.
The electric wire shown in fig. 15 and 16 is peeled from the end after being cut. As is clear from fig. 15B, the core wire CW1 is exposed at the tip (head) of the trailing wire W1 (referred to as a 1-side wire), and the peeling chips SI1 adhere to the front side (the side of the cutter 242) of the rear peeling blade 241. Similarly, the core wire CW2 is exposed at the rear end (tail, tail end) of the forward wire W2 (referred to as a 2-side wire), and the peeling chips SI2 are attached to the rear side (cut-off blade 242 side) of the peeling blade 242 on the front side (2 side). For the sequence of the peeling operation, refer to fig. 22, 23 and 24.
The air blowing member 380 for covering the chips SI is mainly constituted by an air blowing module 381 having two air blowing holes 381b, 381 c. The blower module 381 is provided on the left side (the side where the 1-side crimping machine 260 is provided) of the upper portion of the blade unit 240 in a liftable manner, see fig. 14. The air holes 381b and 381c are configured to spray air toward the inner side (the side where the cutter blade 242 is located) of the front and rear peeling blades 241 and 243. As for the lifting of the blower module 381, the module 381 is lifted up when the wire W comes out leftward from the cut-and-peel portion 204 to go to the 1-side crimp machine 260 and when the wire W returns from the 1-side crimp machine 260 to the cut-and-peel portion 204. Upon blowing, the blowing module 381 descends.
As is clear from fig. 15 (B) and 17 (B), the blower module 381 has a rectangular parallelepiped shape as a whole. The width of the module 381 in the front-rear direction is substantially the same as the outer width of the front-rear peeling blades 241, 243, and the width in the left-right direction is substantially the same as the width of the cutter 242. As is clear from fig. 17 (B), the height of the blower module 381 is substantially the same as the height between the upper and lower tongue-like pieces 341, 341'.
As shown in fig. 15 (B), the blast holes 381B, 381c are opened at two places of the front side and the rear side. The inside of the blast holes 381b, 381c is connected to the air guide hole 381 h. The air guide hole 381h extends in the front-rear direction within the blower module 381, and is connected to the air guide hole 381j in the left-right direction at the rear side. The initial side of which is connected to air pressure tube 387 (see fig. 17) via tubing connection member 383.
The rear air blast hole 381b is provided so as to extend in a direction inclined toward the rear side from the vicinity of the front-rear center (the side opposite to the 1-side crimping machine 260) and the right side (the side of the peeled off chip suction pipe 250). The front end of the direction in which the blast hole 381b is located is directed to the bottom of the blade-shaped concave portion 241b ' of the front-lower rear-side peeling blade 241' in a substantially completely raised state (a state in which the upper and lower peeling blades 241, 241' are overlapped and closed). The bottom of the blade-shaped concave portion 241b 'is a portion where the root of the peeled coating chip SI1 adheres to the peeling blades 241', 241. In the example of the figure, the center line of the air hole 381b forms an angle α=20° with the orthogonal surface (the front surface of the peeling blade) of the wire axis, and the angle β=30° of inclination of the blade-shaped concave portion 241b' in a plan view.
The direction in which the front air hole 381c is oriented is the same as the relation between the front upper and lower peeling blades 243, 243', the blade-type concave portion 243b ', and the relation between the angle α and the angle β as in the case of turning the rear air hole 381b and the rear peeling blades 241, 241 '.
The peeling (cladding removal) size, i.e., the length of the peeled chips SI, was short, 1.0mm. On the other hand, the depth of the blade-shaped concave portion 241b' is 1.5mm. Therefore, the head of the flaking chips SI attached to the bottom of the edge-type concave portion 241b 'is also hardly exposed outward from the edge-type concave portion 241b' in some cases. Therefore, the effect of blowing off the peeling debris SI (peeling adhesion) is not sufficient by blowing only generally toward the periphery of the peeling blade 241. Therefore, in the present embodiment, such blast is dug by directly striking the bottom of the blade-shaped concave portion 241b' of the peeling blade 241.
The timing of the blowing is a timing when the peeling blades 241, 243 start to leave the top and bottom dead center (the top and bottom blades start to open) after reaching the top and bottom dead center positions close to each other. Specifically, the blowing is performed at the timing when the peeling blades 241, 243 are shifted by 0.2mm from the top and bottom dead center (opened by 0.4 mm). The time of the blowing is about 100 ms. The results of the experiment revealed that: this time and time are suitable for the completeness of the blowing off of the flaking chips and the reduction of the compressed air consumption.
As shown in fig. 17, the blower module 381 is fixed to the lower surface of the peeling blade holder 541, and is lifted and lowered together with the peeling blade holder 541. Fig. 17 (a) shows an elevated state, and fig. 17 (B) shows a lowered state. In the raised state of fig. 17 (a), the lower surface of the blower module 381 is open to the guide plate 360, and the electric wire W freely travels laterally left and right therebetween.
When the blower module 381 is in the lower position, the left side of the space in which the chips SI fly is substantially closed by the blower module 381, the front and rear are substantially closed by the peeling blades 241, 243, and the upper and lower are substantially closed by the tongue-like pieces 341, 342. Therefore, the flaking chips SI can be prevented from flying out. Further, as the opening area of the suction duct 250 is smaller, the larger the difference between the atmospheric pressure and the negative pressure due to the flow of the air from the gap is, the higher the suction force is, and the higher the recovery efficiency of the coated chips is.
If the relationship between the structure of the air blowing member 380 and the synchronization between the peeling actions (the wrapping peeling actions) is summarized, the following will be described. That is, the blowing position moves toward the closing position of the vertical peeling blade together with the closing operation of the coating peeling portion, and the blowing is performed toward the vicinity of the position where the coating chips are generated when the vertical peeling blade is closed, whereby both the reinforcement of the coating chip removing action and the prevention of the scattering of the coating chips can be achieved. Specifically, the tongue-shaped pieces 341 and 342 and the upper and lower peeling blades 241 and 243 of the suction port of the suction duct 250 are closed, and air is blown toward the coated chip suction port, so that the recovery of the coated chip is improved, and the scattering of the chip can be more thoroughly prevented.
Next, a structure and an action of the wire feeding guide around the peeling section 204 will be described with reference mainly to fig. 18 and 19.
Fig. 18 is a view of the periphery of the cutting and peeling portion 204 in the wire feeding state in the terminal crimping wire manufacturing apparatus according to the second embodiment, (a) is a top cross-sectional view, and (B) is a side cross-sectional view.
Fig. 19 is a view of the periphery of the cut-and-peel portion 204 in the clamped state of the 2-side wire clamping portion of the apparatus of fig. 18, (a) being a top cross-sectional view, and (B) being a side cross-sectional view.
The other end processing wire manufacturing device (201) of the present invention comprises: a wire supply unit (210) for supplying wires; a wire cutting and peeling section (204) that cuts the supplied wire into an arbitrary length and peels off the coating of the end of the wire; a 1-side end processing unit (260) that performs end processing on the front end of the cut 1-side (trailing) wire from which the coating has been peeled; a 2-side end processing unit (290) that performs end processing on the rear end of the 2-side (forward) wire; and a clamping and conveying part (220, 270) which clamps the electric wire and conveys the electric wire to each part, wherein the end processing electric wire manufacturing device (201) is further provided with a guide plate (360), and the guide plate (360) extends below the electric wire transverse moving path at the side (left side) of the 1 side end processing part (260) of the electric wire cutting and peeling part (204), receives the drooping electric wire and guides the drooping electric wire to the electric wire cutting and peeling part (204).
The wire cutting and peeling device (204) is characterized by further comprising: a wire receiving unit (390) which is arranged on the front side (wire feeding direction) of the wire cutting and peeling unit (204), extends on the lower side (preferably also on the upper side and 1 side end processing unit side of the advancing path) of the advancing wire (W1), and receives the wire which sags when advancing (preferably also reduces the upward and lateral movement of the wire); a wire receiving part moving member (392) that moves the wire receiving part (390) between a position near the cutting peeling part (204) and a position far from the cutting peeling part (204); and moving members (272, 273) of the holding portion (271) that retract the holding portion (271) from the wire travel path when the wire receiving portion (390) approaches the cutting and peeling portion (204), and advance the holding portion (271) to the wire travel path when the wire receiving portion (390) is away from the cutting and peeling portion (204). In the embodiment to be discussed next, the wire receiving portion 380 is a guide member having a vertical cross section in the wire longitudinal direction in the shape of a cross section of japanese コ (open toward the direction of the 2-side crimping machine). The wire (W1) passes through the inside of the guide member, thereby reducing the disturbance of the wire when the wire is fed.
As shown in fig. 18 a and 19a, a guide plate 360 extending below the wire traverse path is provided on the left side (the side having the 1-side terminal crimping machine 260, see fig. 14) of the cutting and peeling device 204. The guide plate 360 is a plate having a substantially L-shape in a plan view. The left end portion 360b is a left inclined surface 360b (see fig. 17 a), and the rear portion is a rear inclined surface 360f. Any inclined plane has the following functions: when the tip end portion (the head terminal T1) of the electric wire has a downward tendency to hit the inclined surfaces 360b, 360f, the tip end of the electric wire is lifted upward. The other, front and right parts of the guide plate 360 are formed as a plane 360j. As shown in fig. 18 (B) and 19 (B), the height of the flat surface 360j is the same as the height of the upper surfaces of the lower tongue-like pieces 341', 342'. The guide plate 360 has a front-end direction extension portion 360p extending toward the front side, and the front end portion of the 1-side wire W1 can be fed (discharged) to the front-end direction extension portion 360 p.
A 2-side clamping portion 271 and a wire receiving portion 390 are provided on the front side of the cutting peeling portion 204. The 2-side clamping portion 271 is retracted below the rear end portion of the wire receiving portion 390 at the time of wire feeding in fig. 18, and is raised to approximately the same height as the wire receiving portion 390 at the time of wire clamping in fig. 19. The wire receiving portion 390 is close to the cutting and peeling portion 204 when the wire of fig. 18 is fed, and is far to the front side from the cutting and peeling portion 204 when the wire of fig. 19 is gripped.
As shown in fig. 19 (a), the 2-side grip 271 includes a pair of claws 271b and 271c for gripping the electric wire. The base portions of the pair of claws 271b and 271c are supported by an arm 272 having a claw opening/closing mechanism (a so-called commercially available air chuck or the like) incorporated therein. The arm 272 is mounted on a 3-axis movable mechanism that can be tilted, and that can travel forward, backward, and in the lateral direction. The arm 272 is rotated about the front-rear axis to raise and lower the 2-side grip 271 (fig. 19) and (fig. 18). By moving the arm 272 forward and backward, the wire is advanced and retracted (peeling operation in fig. 22, 23, and 24, etc.). By moving the arm 272 laterally (left and right), the peeling section 204 is cut and moved laterally with respect to the crimping machine 290, and the sheet is discharged to a discharge tray. The tiltable, fore-and-aft, lateral travel mechanisms can be constituted by commercially available actuators, linear guides, and the like.
The wire receiving portion 390 has upper and lower plates 390U and 390B which are opposed up and down, and an upstanding planar left wall 390W connected to the rear ends (front ends) of the two plates. The right side of the wire receiving portion 390 (the 2-side crimper 290 side, see fig. 14) has no walls and no shielding. The rear end portion of the upper plate 390U is inclined in the upward and rearward direction, and the rear end portion of the lower plate 390B is inclined in the downward and rearward direction. Both slopes open toward the rear side in a horn shape, and even if the front end (head) of the wire W1 is directed downward, it is easy to enter the wire receiving portion 390. The heights of the portions of the upper plate 390U and the lower plate 390B other than the inlet horn portion are larger than the intervals between the upper and lower tongue pieces 341, 341', 342' of the cut-off peeling portion 204.
When the wire is fed, the wire exposed to the front side from the cutting and peeling section 204 and the terminal enter the wire receiving section 390 immediately after the cutting and peeling section 204 and advance (feed) to the front side. Thus, the wire is prevented from sinking under the cover 394 which makes the wire slide laterally when the 2-side wire is fed laterally. The wire receiving unit 390 also suppresses the disturbance at the time of wire feeding. That is, the upper plate 390U of the wire receiving portion 390 functions to suppress the upward movement of the wire when the wire is fed. The farther to the front the left wall 390W, the farther to the right. This suppresses lateral disturbance in an initial state at the time of wire feeding, and is continuous with the wire receiving part 390U which is a surface for preventing collision with the installed equipment and the like and suppressing in the upper direction. The wire receiving portion 390 also extends forward of the forward extending portion 360p of the guide plate 360, and the 1-side wire W1 can be fed (discharged) from the forward extending portion 360p to the wire receiving portion 390.
Next, the feeding and advancing operation of the wire W1 from the 1-side crimping machine 260 to the cutting and peeling section 204 will be described with reference to fig. 20 and 21.
Fig. 20 is a plan view showing lateral movement and feeding (wire length direction payout) of the wire from the guide plate 360 to the cutting and peeling portion 204 in the case of crimping a relatively small terminal (for example, a terminal having an inter-electrode pitch of 2.54mm pitch or less of a signal connector) to the wire of the wire head.
Fig. 21 is a plan view showing lateral movement and feeding (wire length direction payout) of the wire from the guide plate 360 to the cutting and peeling portion 204 in the case of crimping a relatively large terminal (for example, a terminal having an inter-electrode pitch of 3.96mm or more between a power source and a vehicle-mounted connector) to the wire of the wire head.
In the front stage of fig. 20 a, after the relatively small 1-side terminal TS1 is crimped by the 1-side crimping machine 260 (see fig. 14), the 1-side clamping portion 225 is retracted rearward, and the terminal or the wire is pulled out from the crimping machine so as not to be caught by the crimping machine even if it is moved laterally. Next, the 1-side grip portion 225 starts to move laterally in the rightward direction. The state in which the 1-side terminal TS1 comes onto the guide plate 360 is the state of fig. 20 (a). After the start of the lateral movement of the grip portion, the 1-side grip portion 225 starts to move longitudinally in the forward direction at a predetermined time. This is the state of fig. 20 (B). At this time, the lateral movement of the 1-side grip portion 225 continues.
Fig. 20C shows a case where the 1-side grip 225 and the 1-side wire W1 have reached the lateral (left-right) centers of the respective blades of the cutting and peeling section 204. In addition, the following is the case: the 1-side grip 225 in fig. 20 (B) starts advancing to start wire feeding after a predetermined time elapses, and the 1-side wire W1 is released forward to a considerable extent. Further, at the time when the 1-side wire W1 starts to enter between the upper and lower blades of the cutter blade 242 and the stripping blades 241 and 243, there is a case where the 1-side terminal TS1 enters between the upper and lower cutter blades 242 and the stripping blades 241 and 243 due to the difference in specifications of the wire and the terminal, and if this is the case, the 1-side terminal TS1 may be exposed forward with respect to the front-side stripping blade 243.
Next, a case of a relatively large 1-side terminal TL1 will be described with reference to fig. 21. In this case, in the first half of the lateral movement, fig. 21 (a) and (B) are similar to those of the lateral movement of the relatively small 1-side terminal TS1 described above, that is, fig. 20 (a) and (B). However, in the state of fig. 21 (B), the lateral movement of the 1-side grip portion 225 is stopped. In the stage (C) of fig. 21, only the advance of the 1-side grip 225 up to the predetermined position and the feeding of the 1-side wire W1 up to the predetermined length are performed. Thereafter, as shown in fig. 21 (D), the 1-side wire W1 is fed to the cut-and-peel portion 204 only by the lateral movement.
In the case of the relatively large 1-side terminal TL1, it is difficult to enter between the upper and lower cutting blades 242, the stripping blades 241, 243, and the tongue-shaped pieces 141, 142 (to be caught), and therefore, the large 1-side terminal TL1 is exposed forward from the front stripping blade 243 in terms of safety, and thereafter, the wire is moved laterally to enter the cutting stripping portion 204. In addition, when the wire W1 is fed in the middle and rear half and is moved laterally after the feeding, the 1-side terminal TL1 is located (on) the wire receiving portion 390, and even if the wire is warped or disturbed, there is a low possibility that a failure such as a terminal clip is generated.
In summary, in the present embodiment, the wire feeding start position of the return feeding guide 360 and the feeding of the 1-side wire W1 to the suction port 250b are described below. In the embodiment of fig. 5, the wire guide (reference numeral 160, turning guide) in the turning operation is used, but in the present embodiment, the wire guide is used in accordance with the return conveyance (conveyance from the 1-side crimping machine 160 to the cutting and peeling section 204) in the lateral (parallel) conveyance operation of the wire. In the embodiment of fig. 5, the upper and lower guide plates have a shape of only the lower side. The feeding (discharging) start position of the electric wire proceeds at the upper surface of the wire guide 360 according to the terminal shape (size, etc.), after which the electric wire is guided between the tongue-like pieces 341, 342 of the suction port 250b of the peel-off chip suction duct 250.
Next, several examples of the operations of the cutter 242 and the peeling blades 241 and 243 will be described with reference to fig. 22, 23, and 24.
Fig. 22 is a side sectional view showing the operations of the cutter 242 and the peeling blades 241 and 243 in a case where the peeling length is generally (relatively short, in an example, less than 10 mm).
Fig. 23 is a side cross-sectional view showing the operations of the cutter 242 and the peeling blades 241 and 243 in the case where the peeling length of the end portion on one side is extremely long (10 mm to 20mm in one example) (one-side length removal).
Fig. 24 is a side cross-sectional view showing the operations of the cutter 242 and the peeling blades 241 and 243 in the case where the peeling lengths of the end portions on both sides are extremely long (both side lengths are removed).
The arrow attached to the wire W is the feeding direction of the wire W. The drawing shows a pair of upper and lower rear peeling blades 241, cutter 242, and front peeling blade 243, which are arranged in the "rear" to "front" direction. Each knife is driven up and down by the aforementioned mechanism.
Fig. 22 is a diagram illustrating a normal peeling process, (a) shows a state where the wire enters between the upper and lower blades (retracted states) of the respective blades, (B) shows a state where the cutting blade 242 and the peeling blades 241, 243 are close to the wire, (C) shows a state where cutting for determining the wire length is completed, (D) shows a state where the peeling length is set, (E) shows a state where the peeling blade cuts into the wire coating, and (F) shows a state where the wire is pulled back and forth (away from the peeling blade) and the peeling is completed.
In this example, the up-and-down movement of the cutter 242 and the dehider knives 241 and 243 in fig. 22 a to 22F is performed by a motor and a ball screw driving slider (similar to reference numeral 45 in fig. 2) (sliding). From the state of fig. 22 (D) to fig. 22 (F), the 1-side grip portion 225 and the 2-side grip portion 271 grip the wire W before and after cutting the peeling portion 204 and move back and forth, thereby moving the wire in the longitudinal direction.
After the cutting for wire length determination in fig. 22C is completed, the cut-off front wire is referred to as a 2-side wire W2, and the rear wire is referred to as a 1-side wire W1 (the same as the above). In fig. 22 (F), the peeled coating chips (not shown) are blown off from the inner sides of the peeling blades 241 and 243 (the side of the cutoff blade 242), and then sucked into the peeling chip suction pipe 250 (see fig. 15 (a)) by negative pressure, and discharged.
The wire cutting and peeling device (204) of the present invention is provided with a cutting blade (242) and peeling blades (241, 243) which are arranged along the longitudinal direction of the wire, wherein the cutting blade (242) cuts the wire, the peeling blades (241, 243) form a notch on the coating of the wire, and the wire cutting and peeling device (204) is characterized in that the wire cutting and peeling device (204) comprises: a slider reciprocally driven in a crossing direction with respect to a longitudinal direction of the electric wire; a peeling blade holder (541) attached to the slider and holding the peeling blades (241, 243); a cutter holder (543) mounted on the slider and holding the cutter (242); and a cutter driving actuator for driving the cutter holder back and forth in the crossing direction, wherein the mechanism for driving the slider back and forth is electrically operated, the cutter (242) is avoided from the electric wire by the driving of the cutter driving actuator after the electric wire is cut, the cut end of the electric wire is conveyed in the longitudinal direction beyond the front-rear direction position of the cutter (242) after the electric wire is cut, a long peeling length is set, the peeling blades (241, 243) are cut into the coating of the electric wire, and the electric wire is moved in the longitudinal direction to peel the coating.
Next, with reference to fig. 23, a case of removing the one-side length (the peeling length of the head of the 1-side wire W1 is short, and the peeling of the bottom of the 2-side wire W2 is long) will be described. Before (until the wire is cut) in fig. 23 (D'), the same as in fig. 22 (a) to 22 (C) is applied. In fig. 23D', the cutter 242 is retracted individually in a direction away from the wire by an air cylinder (the same member as that shown by reference numeral 44 in fig. 2).
Next, in fig. 23 (E'), the 2-side wire W2 is retracted to a point where its rear end is slightly exposed rearward from the front-rear direction position of the cutter blade 242. The reason for this is that the cutter 242 is retracted from the wire passage in fig. 23 (D'). Next, in fig. 23 (F'), the stripping blades 241 and 243 are cut into the wire coating. Next, in fig. 23 (G'), the 1-side wire W1 is retracted, the 2-side wire W2 is advanced, and the wire coating is peeled off. As described above, in the cutting/peeling device 204 of the present embodiment, the peeling length is easily longer than the "peeling blade-cutting blade interval" (long removal).
Next, a case where the side lengths are removed will be described with reference to fig. 24. Until fig. 24 (a) (until the wire is cut), the same as fig. 22 (a) to 22 (C) is performed. In fig. 24 (a), the cutter 242 is retracted individually in a direction away from the wire by an air cylinder (the same member as that shown by reference numeral 44 in fig. 2).
Next, in fig. 24 (b), the 2-side wire W2 is retracted to slightly expose the rear end thereof rearward from the front-rear direction position of the cutter blade 242, and the 1-side wire W1 is retracted rearward with respect to the rear-side stripping blade 241. Then, in fig. 24 (c), the front side stripping blade 243 is cut into the wire coating. Next, in fig. 24 (d), the 2-side wire W2 is advanced, and the wire coating is peeled off. At this stage, the long removal of the rear end (tail) of the 2-side wire W2 is completed.
In fig. 24 (e), after each blade is retracted from the wire passage, the 1-side wire W1 is advanced, and the front end of the 1-side wire W1 is exposed forward from the position of the cutter blade 242 in the front-rear direction. In fig. 24 (f), the rear stripping blade 241 is cut into the coating of the 1-side wire W1. In fig. 24 (g), the 1-side wire W1 is retracted and the coating is peeled off. In fig. 24 (h), each blade is retracted from the wire passage. In fig. 24 (i), the cutter 242 is brought close to the wire passage by the cylinder driving. This state is a state in which the wire is waiting for traveling to the cutting and peeling portion 204.
As described above, in the cutting/peeling device 204 of the present embodiment, by adjusting the operation sequence of the dual actuators for driving the slider and for driving the cutting blade 242, the long removal operation in the size range between the front and rear removal blades 241 and 243 disposed therebetween is facilitated. In addition, as described above, scattering of chips and degradation of the removal function due to adhesion of the wire-covered chips to the stripping blade can be prevented. This can prevent the core wire from being damaged due to the excessive cutting setting of the dehider knife. In addition, failure due to adhesion of the coating chips to the peeling blade, such as failure of the machine body, can be prevented. Further, it is possible to contribute to the efficiency and energy saving of the production of the wire harness machine.

Claims (27)

1. An end-processing wire manufacturing device (1) is provided with:
A wire supply unit (10) for supplying wires;
An electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the cut end part of the electric wire;
An end treatment unit (60) for performing end treatment on the coated distal end of the wire; and
A clamping and conveying part (20) which clamps and conveys the electric wire to each part,
The terminal-processing wire manufacturing apparatus (1) is characterized in that,
The end-treated wire manufacturing device (1) further comprises a rotary guide (160), wherein the rotary guide (160) is arranged between the wire cutting and peeling part (4) and the end treatment part (60) along a rotary path of the wire end part and is provided with a pair of guide plates (161U, 161B) which are opposite in the intersecting direction of the rotary direction,
The distance between the pair of opposing guide plates (161U, 161B) is relatively wide on the side of the end treatment section (60), and relatively narrow on the side of the wire cutting and peeling section (4).
2. The end-treated wire manufacturing apparatus (1) according to claim 1, wherein,
The turning guide (160) has a front-end direction extension (161P) extending in the front-end direction of the wire length direction, that is, the paying-out direction, at a portion near the wire cutting and peeling portion (4).
3. The end-treated wire manufacturing apparatus (1) according to claim 1 or 2, wherein,
In the turning guide (160), the electric wire is discharged in the longitudinal direction during the turning of the electric wire from the 1-side end processing part (60) to the wire cutting and peeling part (4).
4. An end-processing wire manufacturing device (1) is provided with:
A wire supply unit (10) for supplying wires;
An electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the cut end part of the electric wire;
end treatment units (60, 90) for performing end treatment on the end of the wire from which the coating has been removed; and
Clamping and conveying parts (20, 70) which clamp the electric wire and convey the electric wire to each part,
The terminal-processing wire manufacturing apparatus (1) is characterized in that,
The clamp conveying parts (20, 70) are provided with:
clamping parts (25, 71) for clamping the electric wire;
A length driving member (23, 73) for driving the clamping part in the wire length direction; and
A swing driving member (21, 75) for driving the length driving member to swing,
The length driving member (23, 73) moves the clamping portion (25, 71) in the length direction during the rotation of the clamping portion.
5. The end-treated wire manufacturing apparatus (1) as claimed in claim 4, wherein,
When the front end of the 1-side wire (W1) is subjected to end processing in the 1-side end processing unit (60) and then the 1-side clamping unit (25) is rotated and returned to a position facing the cutting and peeling unit (4), the 1-side clamping unit (25) is moved away from the wire feeding unit (10) by the length driving member (23).
6. The end-treated wire manufacturing apparatus (1) as claimed in claim 5, wherein,
Further, by the wire supply of the wire supply part (10), the wire protruding dimension protruding from the 1-side clamping part (25) is increased and wire feeding is performed.
7. The end-treated wire manufacturing apparatus (1) as claimed in claim 4, wherein,
The 2-side clamping part (71) is used for clamping the 2-side wire (W2) which is released from the cutting and peeling part (4) and has been cut and peeled at two ends, the 2-side wire (W2) is rotationally conveyed to the 2-side end processing part (90), the rear end part of the 2-side wire (W2) is processed,
Then, when the 2-side clamping part (71) rotates in the opposite direction and returns to the cutting and peeling part (4), the 2-side wire (W2) is delivered to the discharge clamping part (81), and the 2-side clamping part (71) is moved in the direction approaching the cutting and peeling part (4) by the length driving member (73).
8. An end-processing wire manufacturing device (1) is provided with:
A wire supply unit (10) for supplying wires;
An electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the end part of the electric wire;
an end treatment unit (90) for performing end treatment on the end of the wire from which the coating has been removed; and
A clamping and conveying part (70) which clamps the electric wire and conveys the electric wire to each part,
The terminal-processing wire manufacturing apparatus (1) is characterized in that,
The clamp conveying part (70) is provided with:
a clamping part (71);
a driving member (73, 75) for driving the clamping portion; and
And an openable wire sway suppression unit (719) provided on the opposite side of the clamping unit from the wire cutting/peeling unit (4), and which is located on the side of the wire and suppresses sway of the wire.
9. An end-processing wire manufacturing device (1) is provided with:
A wire supply unit (10) for supplying wires;
An electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the end part of the electric wire;
an end treatment unit (90) for performing end treatment on the end of the wire from which the coating has been removed;
A 2-side clamping and conveying part (70) which is provided with a 2-side clamping part (71) for clamping the 2-side electric wire (W2) with the two ends cut off and driving components (73, 75) for moving the 2-side clamping part;
a discharge clamping part (81) which clamps and gives the electric wire with the terminal crimping completed; and
A driving member for moving the discharge clamping portion,
The terminal-processing wire manufacturing apparatus (1) is characterized in that,
At a time before the 2-side clamping part (71) reaches a position where the electric wire is delivered to the discharge clamping part (81), the discharge clamping part (81) starts to receive the electric wire from the 2-side clamping part.
10. A wire cutting and peeling device (4) is characterized in that,
The wire cutting and peeling device (4) is provided with:
A wire cutting blade (42) and stripping blades (41, 43) which are arranged along the length direction of the wire and respectively provided with a pair of blades which are opposite in the crossing direction of the length direction, wherein the stripping blades (41, 43) form a notch on the coating of the wire;
a slider (45) reciprocally driven in the intersecting direction;
A peeling blade holder (441) attached to the slider (45) and holding the peeling blades (41, 43); and
A peeling chip suction pipe (50) connected to the wire cutting blade (42) and the side of the peeling blade (41, 43),
The wire cutting and peeling device (4) further comprises an inlet gate (412), wherein the inlet gate (412) is arranged on the opposite side of the pipe (50) and opens and closes the wire inlet to the knife (140).
11. Wire-cutting and stripping device (4) as claimed in claim 10, characterized in that,
The inlet gate (412) is mounted on and fixed to the dehider holder (441 '), and is lifted and lowered together with the holder (441').
12. An electric wire cutting and peeling device (4) is provided with: a cutter (42) and stripping blades (41, 43) which are arranged along the length direction of the electric wire, wherein the cutter (42) cuts the electric wire, the stripping blades (41, 43) form cuts on the coating of the electric wire,
The wire cutting and stripping device (4) is characterized in that,
The wire cutting and peeling device (4) is provided with:
a slider (45) reciprocally driven in a crossing direction with respect to a longitudinal direction of the electric wire;
A peeling blade holder (441) attached to the slider (45) and holding the peeling blades (41, 43);
a cutter holder (443) mounted on the slider (45) and holding the cutter (42); and
A cutter driving actuator (44) for reciprocally driving the cutter holder (443) in the intersecting direction,
The mechanism for reciprocally driving the slider (45) is electric,
The cutting blade (42) cuts the electric wire by driving the cutting blade driving actuator (44) and thereafter evades the electric wire,
After the wire is cut, the wire is conveyed along the length direction, the peeling length is set,
Next, the stripping blades (41, 43) cut into the coating of the electric wire,
Then, the wire is moved in the longitudinal direction to peel off the coating.
13. Wire-cutting and stripping device (4) as claimed in claim 12, characterized in that,
The cutoff knife driving actuator (44) is an air cylinder.
14. A wire cutting and peeling device (204) is characterized in that,
The wire cutting and peeling device (204) is provided with:
A wire cutting blade (242) and stripping blades (41, 43) which are arranged along the length direction of the wires (W1, W2) and respectively provided with a pair of blades which are opposite to each other in the direction crossing the length direction, wherein the stripping blades (241, 243) form cuts on the coating of the wires;
front and rear mechanisms (223, 273) for moving the electric wire in the longitudinal direction, that is, in the front and rear direction; and
A suction pipe (250) for sucking and discharging the flaking scraps (SI 1, SI 2) generated by the peeling blades (241, 243),
The wire cutting and stripping device (204) is characterized in that,
The wire cutting and stripping device (204) further comprises a member (380), wherein the member (380) is arranged opposite to the suction pipe (250) through the stripping blades (241, 243) and blows air towards the bottoms of the blade-shaped concave parts (241 b ', 243 b') of the stripping blades (241 ', 243').
15. The wire-cutting stripping apparatus (204) as claimed in claim 14, wherein,
The air-blown member (380) is attached to a peeling blade holder (541) that holds the peeling blades (241, 243) so as to be capable of being lifted and lowered.
16. An end-processing wire manufacturing device (201) is provided with:
A wire supply unit (210) for supplying wires;
a wire cutting and peeling section (204) that cuts the supplied wire into an arbitrary length and peels off the coating of the end of the wire;
A 1-side end processing unit (260) that performs end processing on the front end of the cut 1-side wire, i.e., the trailing wire, from which the coating has been peeled;
A 2-side end processing unit (290) that performs end processing on the rear end of the cut 2-side wire, i.e., the forward wire, from which the coating has been peeled; and
A clamping and conveying part (220, 270) which clamps the electric wire and conveys the electric wire to each part,
The end-processing wire manufacturing apparatus (201) is characterized in that,
The end-treated wire manufacturing device (201) further comprises a guide plate (360), wherein the guide plate (360) extends below the wire lateral movement path on the side of the 1-side end treatment part (260) of the wire cutting and peeling part (204), namely on the left side, and receives a sagged wire to guide the wire to the wire cutting and peeling part (204).
17. The end-processing wire manufacturing apparatus (201) according to claim 16, wherein,
A front extension (360 p) extending toward the front side is formed on the guide plate,
The front end portion of the 1-side wire (W1) can be fed, that is, fed out, at the front-end direction extension portion.
18. An electric wire cutting and peeling device (201) is provided with:
an electric wire cutting and peeling part (204) which cuts the supplied electric wire (W1) into any length and peels off the coating of the end part of the electric wire; and
A clamping part (271) for clamping and conveying the cut and peeled wire (W2),
The wire cutting and stripping device (201) is characterized in that,
The wire cutting and peeling device (201) further comprises:
A wire receiving unit (390) which is arranged on the front side of the wire cutting and peeling unit (204), that is, in the wire feeding direction, extends below the advancing path of the fed wire (W1), and receives the wire drooping when fed;
A wire receiving part moving member (392) that moves the wire receiving part (390) between a position near the cutting peeling part (204) and a position far from the cutting peeling part (204); and
And moving members (272, 273) of the clamping portion (271) that retract the clamping portion (271) from the wire travel path when the wire receiving portion (390) approaches the cutting peeling portion (204) and advance the clamping portion (271) to the wire travel path when the wire receiving portion (390) is away from the cutting peeling portion (204).
19. The wire-cutting and stripping apparatus (201) as claimed in claim 18 wherein,
The wire receiving part (390) also extends at the upper side and/or the 1 side end treatment part side of the travelling path of the fed wire (W1) to reduce the upward and/or transverse disturbance of the wire when the wire is fed.
20. An end-processing wire manufacturing device (201) is provided with:
A wire supply unit (210) for supplying wires;
a wire cutting and peeling section (204) that cuts the supplied wire into an arbitrary length and peels off the coating of the end of the wire;
A 1-side end processing unit (260) that performs end processing on the front end of the cut 1-side wire, i.e., the trailing wire, from which the coating has been peeled;
a 2-side end processing unit (290) that performs end processing on the rear end of the cut and stripped 2-side wire or the wire; and
A clamping and conveying part (220, 270) which clamps the electric wire and conveys the electric wire to each part,
The end-processing wire manufacturing apparatus (201) is characterized in that,
The terminal-processing wire manufacturing device (201) further comprises:
A wire receiving unit (390) which is arranged on the front side of the wire cutting and peeling unit (204), that is, in the wire feeding direction, extends under the fed wire (W1), and receives the drooping wire; and
And a wire receiving part moving member (392) that moves the wire receiving part (390) between a position near the cutting peeling part (204) and a position distant from the cutting peeling part (204).
21. The end-processing wire manufacturing apparatus (201) according to claim 20, wherein,
The wire receiving part (390) also extends at the upper side and/or the 1 side end treatment part side of the travelling path of the fed wire (W1) to reduce the upward and/or transverse disturbance of the wire when the wire is fed.
22. The end-processing wire manufacturing device (201) according to claim 20 or 21, wherein,
The end-treated wire manufacturing device (201) further comprises moving members (272, 273) of the clamping portion (271), wherein the moving members (272, 273) of the clamping portion (271) retract the 2-side clamping portion (271) from a wire travel path when the wire receiving portion (390) approaches the cutting peeling portion (204), and advance the clamping portion (271) to the wire travel path when the wire receiving portion (390) is away from the cutting peeling portion (204).
23. The end-processing wire manufacturing device (201) according to claim 20 or 21, wherein,
The end-treated wire manufacturing device (201) further comprises a guide plate (360) extending below the wire traverse path on the side of the 1-side end treatment section (260) of the cutting and peeling section (204),
A front extension (360 p) extending toward the front side is formed on the guide plate,
The thread receiving part (390) also expands on the front side of the front direction extension part (360 p) of the guide plate (360),
The wire (W1) can be fed, i.e., paid out, from the front extension to the wire receiving part.
24. The end-processing wire manufacturing device (201) according to claim 23, wherein,
In the case of a 1-side wire (W1) having a relatively large 1-side terminal (TL 1), the terminal (TL 1) is moved from the front-end direction extension (360 p) of the guide plate (360) to the wire receiving part (390) by wire feeding, and the wire is moved laterally toward the cutting and peeling part (204) after wire feeding.
25. An electric wire cutting and peeling device (204) is provided with: a cutter (242) and stripping blades (241, 243) which are arranged along the length direction of the electric wire, wherein the cutter (242) cuts the electric wire, the stripping blades (241, 243) form cuts on the coating of the electric wire,
The wire cutting and stripping device (204) is characterized in that,
The wire cutting and peeling device (204) is provided with:
A slider reciprocally driven in a crossing direction with respect to a longitudinal direction of the electric wire;
a peeling blade holder (541) attached to the slider and holding the peeling blades (241, 243);
A cutter holder (543) mounted on the slider and holding the cutter (242); and
A cutter driving actuator for reciprocally driving the cutter holder in the intersecting direction,
The mechanism for reciprocally driving the slide is motorized,
After the wire is cut, the cutting blade (242) is avoided from the wire by driving the cutting blade driving actuator,
After the wire is cut, the cut end of the wire is conveyed in the longitudinal direction beyond the front-rear direction position of the cutting blade (242), a long removed peeling length is set,
Next, the stripping blades (241, 243) are cut into the coating of the electric wire,
Then, the wire is moved in the longitudinal direction to peel off the coating.
26. An apparatus for manufacturing an end-treated wire, characterized in that,
The terminal-treated wire manufacturing apparatus includes:
A wire supply unit (10) for supplying wires;
An electric wire cutting and peeling part (4) which cuts the supplied electric wire into any length and peels off the coating of the cut end part of the electric wire;
An end treatment unit (60, 90) for performing end treatment on the wire end from which the coating has been removed; and
Clamping and conveying parts (20, 70) which clamp the electric wire and convey the electric wire to each part,
The terminal-processing electric wire manufacturing apparatus is characterized in that,
The wire cutting and peeling section (4) is the wire cutting and peeling device (4, 204) according to claim 10, 11, 12, 14, 15 or 25.
27. A method of manufacturing an end-treated wire, comprising the steps of: an electric wire having a core wire and an outer peripheral coating is cut into a predetermined length, and then the coating is peeled off, and then an end treatment is performed,
Use of the end-treated wire manufacturing device (1, 201) of claim 1, 2,4,5,6, 7, 8, 9, 16, 17, 20, 21 or 23, or use of the wire cutting and stripping device (4, 204) of claim 10, 11, 12, 14, 15 or 25.
CN202311404293.5A 2022-10-28 2023-10-27 Wire cutting and peeling device, end processing wire manufacturing device and method Pending CN117955018A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2022-172948 2022-10-28
JP2022-182257 2022-11-15
JP2023-149988 2023-09-15
JP2023149988A JP7496464B2 (en) 2022-10-28 2023-09-15 End-treated electric wire manufacturing device and end-treated electric wire manufacturing method

Publications (1)

Publication Number Publication Date
CN117955018A true CN117955018A (en) 2024-04-30

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ID=90798957

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311404293.5A Pending CN117955018A (en) 2022-10-28 2023-10-27 Wire cutting and peeling device, end processing wire manufacturing device and method

Country Status (1)

Country Link
CN (1) CN117955018A (en)

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