JP2000123951A - Carrying device and carrying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrying device capable of carrying wires at a high speed with high efficiency. SOLUTION: Fixed type wire clamps 10A1-10A3 fixed and arranged on a base B at equal spaces and a carrying wire clamps 10B1-10B4 moved in relation to these fixed type wire clamps are fixed to a carrier frame 30. The carrier frame 30 is reciprocatingly driven with a reciprocatingly driving cylinder 31 for the carrying wire clamp 10B1 to carry wires W to the downstream in the carrying direction (x) in sequence. In this way, the clamping operation and unclamping operation of both clamps are used to smoothly carry the wires at a high speed without causing backlash.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device and a transfer method.

[0002]

2. Description of the Related Art Conventionally, as a means for transporting electric wires, there has been known one disclosed in JP-A-6-96630.
As shown in FIG. 14, in this electric wire conveying means, a plurality of electric wire holding clamps 61 are fixed to a chain (not shown), and each of the electric wire holding means 61 carries the electric wire W while holding the electric wire W. The transport claws 62 move while gripping the electric wire W, and release the transport claws 62, 62 to send out the electric wire W to the product receiver 63. A concave portion 62 a having a curved surface corresponding to the peripheral surface of the electric wire W is formed on each surface of the pair of transport claws 62, 62 which sandwich the electric wire W.
Are formed. And the electric wire gripping clamp 61
After releasing the electric wire W from the transport claw 62, the electric wire W is rotated in a loop with the chain, thereby returning to the original position and grasping the electric wire W again.

[0003]

However, in the electric wire conveying means described above, the electric wire gripping position is determined by the degree of rotation of the drive gear for driving the conveying chain to rotate. There is a fear that the gripping position of the electric wire is shifted due to the adjustment of the sheath tension. Therefore, it was necessary to frequently perform maintenance. In addition, since a chain is used for transportation, there is a problem in that the number of components is large, the cost is high, and rattling is likely to occur.

[0004] For this reason, a device has been proposed in which an electric wire is directly conveyed to a take-out portion side by a transfer cylinder without using a chain. There is a problem that the distance becomes longer and the transport tact becomes longer, and the electric wire cannot be transported to the next process (removal) position efficiently at high speed.

Accordingly, an object of the present invention is to provide a transfer device and a transfer method capable of transferring electric wires at high speed and with high efficiency.

[0006]

According to the first aspect of the present invention,
A transfer device for transferring an electric wire from a previous process position to a next process position, comprising: a transfer frame slidably supported on a base; and a reciprocating drive cylinder for slidingly driving the transfer frame supported on the base. And, a plurality of fixed clamps arranged in sequence between the previous process position and the next process position and fixed on the base, fixed to the transfer frame at the same interval as the fixed clamps, A plurality of moving clamps, which can be opposed to the fixed clamp with the reciprocating operation of the transfer frame, comprising: a relay clamp in which the fixed clamp is disposed on a pre-process position side along the wire transfer direction; A receiving clamp that is arranged on the next process side and sends out the electric wire to the next process position side, wherein the moving clamp holds the electric wire from the previous process position side and A receiving clamp for transferring the electric wire at a position opposed to the relay clamp by movement, and receiving the electric wire facing the receiving clamp while holding the electric wire transferred to the relay clamp by moving the transfer frame. And a feed clamp to pass.

Therefore, according to the first aspect of the present invention, the transport frame slides in the transport direction in a state where the electric wire at the pre-process position is held by the receiving clamp (moving clamp), so that the electric wire is clamped by the relay clamp (fixed clamp). Can be transported. At the same time, the electric wire held by the relay clamp (fixed clamp) can be held by the feed clamp (moving clamp) and transported to the receiving clamp (fixed clamp). At this time, the transport frame slides in a return operation after the electric wire is held by the receiving clamp and the feed clamp, and the holding of the electric wire is released by the relay clamp and the receiving clamp. Thus, the electric wire can be transported from the previous process position to the next process position. For this reason, since the reciprocating distance of the piston rod of the reciprocating drive cylinder can be short, electric wires can be sequentially conveyed by agile operation, and high-speed and efficient conveyance is enabled.

According to a second aspect of the present invention, in the transport apparatus according to the first aspect, the reciprocating drive cylinder is fixed to one surface of a support wall erected on a base, and the transport frame is supported by the support frame. A guide fixed to the other side of the support wall, the guide being slidably supported by the guide, the guide being movably supported on a wall via a slide mechanism and being connected to a piston rod of the reciprocating drive cylinder; And a guide rail fixed to the transport frame, the guide rail being set to be substantially equal to the length of the transport frame in the sliding direction.

Therefore, according to the second aspect of the present invention, in addition to the operation of the first aspect of the present invention, the slide mechanism is reciprocated by the piston rod of the reciprocating drive cylinder fixed to the support wall on the base side. Can smoothly slide the transport frame. Further, since the guide rails constituting the slide mechanism are set to be substantially equal to the length of the transport frame in the sliding direction, the guide rails have an effect of increasing the rigidity of the transport frame. For this reason, even if the transfer frame attempts to bend when the force of the piston rod is transmitted, the guide rail increases the rigidity of the transfer frame. Can be prevented.

According to a third aspect of the present invention, in the transfer device according to the first or second aspect, the receiving clamp faces the pre-process position in a state where the piston rod is protruded, and The reciprocating drive cylinder is driven such that the receiving clamp moves to a position opposed to the relay clamp closest to the pre-process position in a state where the piston rod (32) is retracted. And a deceleration mechanism for decelerating immediately before stopping.

Therefore, in addition to the effects of the first and second aspects of the present invention, the stroke of the piston rod can be adjusted by adjusting the stroke of the receiving clamp to the position facing the pre-process position and the position of the receiving clamp closer to the pre-process position. And a position facing the
Is set so as to perform the reciprocating operation between the moving clamps, that is, by setting the interval between the moving clamps (the interval between the fixed clamps is also the same) as the distance between the piston rods, so that the wire can be transferred between the clamps. Can be performed. Further, the piston rod is decelerated by the deceleration mechanism immediately before it protrudes and stops.

According to a fourth aspect of the present invention, there is provided the transport apparatus according to any one of the first to third aspects, wherein a plurality of relay clamps are provided along a transport direction of the electric wire, and the feed clamp is provided. Are provided in the same number as the relay clamps.

Therefore, in the fourth aspect of the present invention, in addition to the functions of the first to third aspects of the present invention, the number of the relay clamps and the number of the feed clamps are the same and plural, so that the reciprocating drive is performed. Even if the stroke of the cylinder is set short, it is possible to increase the transport distance of the electric wire. For this reason, it is possible to carry the electric wire at a high speed by an agile operation with a short stroke.

According to a fifth aspect of the present invention, there is provided the transport apparatus according to any one of the first to fourth aspects, wherein the fixed clamp and the movable clamp are provided at different positions on the support block and the support block. A pair of rotatable arms rotatably supported, and a pair of gripping blocks fixed to the rotatable arms, respectively, for holding the electric wires at predetermined positions. In a state in which the holding block holds the electric wire and the holding state of the electric wire is released, the pair of holding blocks are rotationally moved to a horizontal position.

Therefore, according to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects, the support block on which the gripping block is supported is moved in the horizontal direction (transport direction).
, The electric wire gripped by the gripping block is transported in the horizontal direction. After transporting the wires,
When the support block returns to the original position along with the slide of the transfer frame by the gripping block releasing the wire and rotating the gripping block to the horizontal position, the gripping block on the clamp side moves to the wire held on the fixed clamp side. It can be prevented from being caught. Conversely, the grip block on the fixed clamp side is prevented from being caught on the electric wire conveyed by the movable clamp.

According to a sixth aspect of the present invention, there is provided the transporting method using the transporting device according to the first aspect, wherein the receiving clamp faces the pre-process position, and the feed clamp faces the relay clamp. At the receiving position, the receiving clamp holds the wire from the pre-process position, the feed clamp holds the wire held by the relay clamp, and after releasing the wire holding state of the relay clamp,
Move the transport frame in the transport direction, the receiving clamp faces the relay clamp, and the feed clamp faces the receiving clamp, and at the feed position facing the receiving clamp, the relay clamp holds the wire transported by the receiving clamp. The receiving clamp holds the electric wire conveyed by the feed clamp, and moves the receiving clamp and the feed clamp to a receiving position after releasing the electric wire holding state of the receiving clamp and the feed clamp. I do.

Therefore, in the invention according to claim 6, after the electric wire is conveyed from the downstream position in the conveying path from the previous process position to the next process position, and the electric wire is held by the upstream clamp, the receiving clamp and After the feed clamp releases the holding of the electric wire at the same time, the transport frame slides. The fixed clamps (relay clamps and receiving clamps) located on the upstream side are released from holding when the electric wires are conveyed from the downstream side, so that the electric wires can be exchanged.

According to a seventh aspect of the present invention, there is provided the transport method according to the sixth aspect, wherein a plurality of the relay clamps are arranged, and the same number of the feed clamps as the relay clamps are arranged.

Therefore, according to the seventh aspect of the present invention, by arranging a plurality of and the same number of relay clamps and feed clamps, it is possible to secure a long transport path with a short stroke. For this reason, for example, when a process for performing another process is added between the previous process position and the next process position, another process can be performed while being held by a predetermined relay clamp.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a transfer apparatus and a transfer method according to the present invention.

First, the transport device according to the present embodiment will be described with reference to the plan view of FIG.

As shown in FIG. 1, the conveying device 1 comprises three fixed clamps 10A1, 10A2, 10A3.
And transport wire gripping clamps 10B1, 10B2, 10B3, 10B4 for reciprocating along the transport direction x,
These transporting wire gripping clamps 10B1, 10B2, 1
A transport frame 30 to which 0B3 and 10B4 are fixed, and a reciprocating drive cylinder 31 that reciprocates the transport frame 30 in the transport direction x are roughly configured.

These fixed electric wire gripping clamps 10A1 to 10A1
10A3 includes a pair of gripping blocks 14,
The support block 11 having a predetermined height is mounted on the base B of the apparatus.
Are erected and fixed at equal intervals at predetermined intervals.

Further, beside the row of the fixed type electric wire gripping clamps 10A to 10A thus arranged, the conveying direction x
The transport frame 30 is arranged along the line. The transfer frame 30 is supported by a support wall 51 erected and fixed to the base B.
Is fixed via a connecting member 33 to a piston rod 32 which is reciprocally driven by a reciprocating drive cylinder 31 fixed to the piston rod 32. The reciprocating drive cylinder 31 is a cylinder with a speed reduction mechanism, and is decelerated from a distance of 70 mm before stopping, for example. For this reason, the maximum speed is slightly higher, but the stop can be performed smoothly and a buffer means such as a shock absorber is not required, so that the configuration is simplified. A guide rail 30B is integrally provided on a side surface of the transfer frame 30 on the support wall 51 side along the transfer direction x. This guide rail 30B is
In order to improve the rigidity of the transport frame 30, as shown in FIG. 1, the transport frame 30 extends to the end of the transport frame 30 where the connecting member 33 is provided. Guides 51A and 51A are provided on the side of the support wall 51 facing the fixed electric wire gripping clamps 10A to 10A, and support the guide rail 30B on the transport frame 30 side slidably in the transport direction x. I have. In the drawing, reference numeral 34 denotes a stopper for restricting the projection of the piston rod 32 beyond a predetermined length.

Further, on the surface of the transport frame 30 facing the fixed wire grips 10A1 to 103, four transport wire grips 10B1 to 10B4 are provided.
Are sequentially fixed along the transport direction x. The transfer electric wire gripping clamps 10B1 to 10B4 are set to have the same interval as that of the fixed electric wire gripping clamps 10A1 to 10A3. In addition, the heights of the transporting wire gripping clamps 10B1 to 10B4 are set to the same height as the fixed wire gripping clamps 10A1 to 103.

Then, of these transporting electric wire gripping clamps 10B1 to 10B4, the cut and peeled portion 2 shown in FIG.
The transport wire gripping clamp 10B1 closest to the wire 5 is moved along the passage of the wire W in the cut and peeled portion 25 (indicated by a dashed line in the figure) in a state where the piston rod 32 projects most from the reciprocating drive cylinder 31. The position is set so as to be able to sandwich W (hereinafter, referred to as a first position). The first position is such that the transporting wire gripping clamp 10B1 as a receiving clamp is positioned in the cutting peeling section 2 in the previous process.
5 is a position where the electric wire W is received. As described below,
The electric wire W cut at the cutting skin stripping portion 25 and attached with the terminal fitting by the first terminal crimping unit is cut and stripped in a state of being sent out by a predetermined length. The transport wire gripping clamp 10 </ b> B <b> 1 located at the first position is arranged so as to be able to grip an end portion (before the terminal fitting is not mounted) in front of W. here,
The stroke of the piston rod 32 of the reciprocating drive cylinder 31 is controlled by the above-described transport wire clamps 10B1 to 10B4.
It is set to correspond to the interval between the two.

For this reason, the transport wire gripping clamp 10B
Paying attention to the transport wire clamp 10B1 at the first position, the 1-10B4 side moves to the position of the fixed wire gripping clamp 10A1 as a relay clamp (hereinafter, referred to as a second position), and moves to the first position. The reciprocating operation of returning is repeated. Similarly, another transfer wire gripping clamp 10B2
To 10B4 are also fixed type electric wire gripping clamps 10A1 to 10A.
For three intervals (cables 10B1 to 10B
(Same as the interval on the B4 side). The fixed electric wire gripping clamps 10A2, 10A as the receiving clamps
The position of A3 is the third position, the fourth position, respectively, and the piston rod 32 is moved in the transport direction x, and the reciprocating drive cylinder 3 is moved.
The position at which the transport wire clamp 10B4 moves when the amount of protrusion from 1 becomes the shortest is defined as a transfer position.

Further, as shown in FIG. 1, a second terminal crimping unit 28 is arranged on the side of the fixed wire gripping clamp 10A3 at the fourth position in the transfer device 1. The terminal fitting is attached to the end of the electric wire W gripped by the gripping clamp 10A3, where the terminal fitting is not mounted. Also, in the delivery position,
Electric wire gripping clamp 10 for taking out electric wire W
C can be located. The takeout electric wire gripping clamp 10C is provided in the electric wire sending section 29.

The configuration of the transporting apparatus has been described above. In order to clarify the configuration in more detail, FIGS.
The configuration of the fixed-type wire gripping clamp and the transporting wire gripping clamp as the wire gripping clamp 10 will be collectively described using FIG.

As shown in FIG. 2, the electric wire gripping clamp 10 of the present embodiment is fixed to a pair of pivot arms 13 pivotally supported by a support block 11 and to each of the pivot arms 13. And a grip block 14.

In this embodiment, the rotating shaft 1 which is parallel to the upper part of the support block 11 having a substantially rectangular parallelepiped shape at a predetermined interval is provided.
A rotating arm 13 is supported on each of 2 and 12.
The rotation arm 13 is defined so that the angle between the position in the horizontal state shown by the solid line in FIG. 2 and the position in the vertical state shown by the two-dot chain line is substantially 90 degrees. . These rotating arms 13 and 13 are driven to rotate by a driving mechanism (not shown) that performs pneumatic driving, hydraulic driving, electric power driving, and the like, and when these rotating arms 13 and 13 approach each other, The electric wire W is sandwiched between the gripping blocks 14.

The gripping blocks 14 are formed with gripping recesses 15 on the sides facing each other when approaching each other. As shown in FIG. 2, the holding recess 15 has a contact surface 15A at an angle α with respect to a perpendicular S perpendicular to the rotating arm 13 and a contact surface 15B at an angle β with the perpendicular S.
And is formed from The relationship between the angle α and the angle β is set so that α <β. In the present embodiment, the angle β is set to be about 1.5 times the angle α. In addition, the angle α and the angle β satisfy the above relationship, and the distance between the rotation axes 12 and the rotation axis 1
The length is appropriately set in consideration of the length from 2 to the portion where the contact surfaces 15A and 15B of the holding recess 15 are joined (the bottom of the holding recess 15).

Also, as shown in FIG.
Reference numeral 4 denotes a plurality (3 in this embodiment) having the contact surface 15A.
(3) having a gripping piece 16A and a contact surface 15B.
) Gripping pieces 16B. These gripping pieces 16
A is arranged so as to be parallel with a predetermined interval in the width direction of the holding block 14. Similarly, the gripping piece 16B is arranged corresponding to the gripping piece 16A. further,
The gripping blocks 14 are displaced by a predetermined distance in the rotation axis direction so that the other gripping pieces 16A, 16B1 can be inserted into the respective gaps of the gripping pieces 16A, 16B of one gripping block 14. I have. With such a configuration, the holding blocks 14 of each other are
The contact surface 15 is formed on the outer peripheral surface of the electric wire W by being closely overlapped.
A and 15B can be brought into contact with each other. FIG. 3A shows an open state in which the gripping blocks 14 and 14 are in a horizontal position, and FIG. 3B shows a state in which the rotating arm 13 is driven to rotate and the gripping blocks 14 approach each other, and 16A and 16B show a state where they overlap each other.

FIG. 4 shows an electric wire gripping clamp 1 according to this embodiment.
FIG. 4 is an explanatory view showing a state where an electric wire W having different diameters is gripped. In this embodiment, as shown in the figure, even if the electric wire W1 having a short diameter and the electric wire W2 having a long diameter are gripped by the holding recesses 15 of the holding block 14, the center axis of the wire W1 and the center of the wire W2 are formed. The axis can be matched. Therefore, when the electric wire is conveyed by the electric wire gripping clamp 10, the electric wire can be always conveyed at the same height. For this reason, when supplying and transporting the electric wire to a device for attaching a terminal fitting or the like to the end of the electric wire W, complicated operations such as setting the device and replacing the grip block 14 are not required, and a smooth operation can be performed. To

FIGS. 5 and 6 show a comparative example of the electric wire gripping clamp 10 of the present embodiment. In the wire gripping clamp according to the comparative example, the same parts as those of the wire gripping clamp 10 of the present embodiment are denoted by the same reference numerals. In the wire gripping clamp 10 of the comparative example, as shown in FIG.
And the angle between the contact surface 15B and the perpendicular S are both set to the same angle α. In the comparative example having such a setting, as shown in FIG.
2 between the contact surfaces 1 along the outer circumference of the electric wire W2.
When the rotating arm 3 is rotated about the rotating shaft 12 so that the contact surface 5B comes into contact with the contact surface 15B, the central axis of the thick electric wire W2 moves upward as compared with when the thin electric wire W1 is sandwiched. As a result, a deviation H occurs between the center axis of the sandwiched thin electric wire W1 and the center axis of the thick electric wire. In contrast, FIG.
In the wire gripping clamp 10 of the present embodiment shown in FIG. 1, the angle of the contact surface 15A and the contact surface 15B with respect to the perpendicular S is β>
By setting α, the thin wire W1 and the thick wire W2
No deviation occurs between the center axes of the two.

The transporting apparatus 1 of the present embodiment is configured such that the wire gripping clamp 10 having such a configuration is fixed to the fixed wire gripping clamps 10A1 to 10A3 and the transporting wire gripping clamp 10B.
This is applied to 1 to 10B4, and when conveying electric wires having different diameters, for example, the conductor of the terminal crimping portion of the second terminal crimping unit 28 can be always kept at a fixed position, Workability can be greatly improved.

Next, an automatic cutting and crimping apparatus for an electric wire to which the conveying apparatus 1 and the conveying method of the present embodiment are applied is shown in FIGS.
This will be described with reference to FIG. The operation and operation of the transport device 1 of the present embodiment will be described collectively in the description of the operation and operation of the automatic cutting and pressing device.

FIG. 7 is a plan view showing the entirety of the automatic cutting and pressing device 20. The automatic cutting and crimping apparatus 20 includes, for example, an electric wire straightening unit 21 in which a plurality of pairs of straightening rollers 22 for straightening an electric wire W supplied from a take-up reel are arranged to face each other. Inspection unit 23 for measuring and sending out length, first terminal crimping unit 24 for crimping end fittings to the ends of electric wires, and cutting and stripping of insulation wire W sent out from inspection unit 23 Cutting section 25, a turning section 26 for moving the end of the wire from which the insulation coating has been stripped to the first terminal crimping unit 24, and a predetermined length cut and sent by the cutting stripping section 25. Wire W while grasping the front end of the wire W
And a wire W carried by the carrier 1
Terminal crimping unit 28 for crimping a terminal fitting to the end of the terminal
And an electric wire sending section 29 for sending out the electric wire W to which the terminal is attached by the second terminal crimping unit 28.

The electric wire W supplied from a take-up reel (not shown) passes between the correction rollers 22 to 22 of the electric wire correction section 21 along the y direction indicated by the arrow in FIG. Straightening is performed by contact pressure. The electric wire W passed through the electric wire straightening unit 21
Is set to be fed by the feed length set by the scale sending unit 23. Here, at the initial stage when the electric wire W is first set, the transmitted electric wire W
The insulating coating is peeled off in a predetermined length range at a cutting skin peeling portion 25 at the tip of the. In the revolving section 26, the revolving section 26 is revolved around a revolving shaft 26 a as a fulcrum to move the end of the electric wire W to the first terminal crimping unit 24 side. 1st terminal crimping unit 2
Numeral 4 attaches a terminal fitting to the end of the electric wire W moved by the swivel section 26. The electric wire W to which the terminal fitting has been attached by the first terminal crimping unit 24 is returned to the original position by the turning part 26 and arranged along the y direction as shown in FIG. After that, the electric wire W is sent out by a predetermined length at the scale sending unit 23 (shown by a solid line in FIG. 8), and the electric wire W is cut and the coating is peeled off at the cut and peeling unit 25. Next, the electric wire W cut by the cutting is cut off by the cut stripping portion 2.
5 is held by the holding clamp 25A, but when the holding by the holding clamp 25A is released after being held by the transfer clamp 10B1, the second transfer is performed by the transfer unit 27 described above.
It is conveyed toward the terminal crimping unit 28 along the conveyance direction x shown by the arrow in the figure.

Next, in the transport device 1, the electric wire correcting section 21, the measuring section sending section 23, and the turning section 26 are arranged along the x direction intersecting the sending direction y of the electric wire W. The transport apparatus 1 has three fixed clamps 10A1, 10A2, and 10A3 arranged and fixed at equal intervals along the x direction. Each of these fixed electric wire gripping clamps 10A1 to 10A3 is
It has the same configuration as the electric wire gripping clamp 10 of the above-described embodiment, and a support block 11 having a pair of gripping blocks 14 is fixed to a base B of the automatic cutting and crimping device 20.

As shown in FIGS. 9 and 10, on the side of the row of the fixed type electric wire gripping clamps 10A to 10A arranged as described above, a transport frame 30 is arranged along the transport direction. The transport frame 30 is fixed via a connecting member 33 to a piston rod 32 which is reciprocally driven by a reciprocating drive cylinder 31 fixed to the support wall 51 side. In the drawing, reference numeral 34 denotes a stopper for restricting the projection of the piston rod 32 beyond a predetermined length.

Further, four transporting wire gripping clamps 10B1 to 10B4 are provided on a surface of the transporting frame 30 facing the fixed wire gripping clamps 10A1 to 103A.
Are sequentially fixed along the transport direction. The transfer electric wire gripping clamps 10B1 to 10B4 are set to have the same interval as that of the fixed electric wire gripping clamps 10A1 to 10A3. Further, the height of the transporting electric wire gripping clamp 10B is set to the same height as the fixed type electric wire gripping clamp 10A.

The transporting wire gripping clamp 10B1 located at the first position among the transporting wire gripping clamps 10B1 to 10B4 is cut with the piston rod 32 protruding from the reciprocating drive cylinder 31 to the maximum. The electric wire W is set so as to sandwich the electric wire W in the passage of the electric wire W in the stripping portion 25. That is, the electric wire W cut by the cut stripping portion 25 and attached with the terminal fittings by the first terminal crimping unit 24 is cut and stripped in a state of being sent out by a predetermined length. The transport wire gripping clamp 10B1 at the first position is arranged so as to be able to grip the front end (the terminal metal fitting is not mounted in this portion) of the drawn wire W. Here, the stroke of the piston rod 32 of the reciprocating drive cylinder 31 is set so as to correspond to the interval between the transporting electric wire clamps 10B1 to 10B4 as described above.

For this reason, the transporting wire gripping clamp 10B
As shown in FIG. 11, the 1st to 10B4 sides are located at the first position P1.
The electric wire clamp 10B1 for conveying the electric wire W to the second position P2 of the fixed electric wire gripping clamp 10A1.
Further, the reciprocating operation of returning to the first position P1 is repeated. Similarly, the other electric wire gripping clamps 10B2 to 10B4 perform a reciprocating operation for the distance between the fixed electric wire gripping clamps 10A1 to 10A3 (the same as the distance between the conveying electric wire gripping clamps 10B1 to 10B4), and the movement in the transport direction x. The electric wire W located on the downstream side is transported to the position on the one upstream side.

Next, the operation of the above-described transport wire gripping clamp and fixed wire gripping clamp will be described with reference to FIG.

FIG. 12 (a) shows a transfer state when the first electric wire W1 is first placed at the first position P1.
As shown in FIG.
The electric wire W1 is gripped and moved to the second position P2. The circles shown on the clamps indicate the gripping state of the electric wire.

Next, as shown in FIG. 12 (b), the fixed electric wire gripping clamp 10A1 at the second position grips the electric wire W1 transported from the transporting electric wire gripping clamp 10B1,
The transporting wire gripping clamp 10B1 releases the gripping of the wire W1 and returns to the first position P1 as shown by the arrow.

Then, as shown in FIG.
The transport wire gripping clamp 10B1 returned to the position is the second position.
The second electric wire W2 is gripped, and at the same time, the electric wire conveyance clamp 10B2 for conveyance grasps the electric wire W1 at the second position P2. At this time, at the first position, the gripping clamp 25A of the cut and peeling portion 25 releases the gripping of the electric wire W2, and at the same time, the fixed type electric wire gripping clamp 10A1 at the second position releases the gripping of the electric wire W1. Thereafter, movement in the transport direction indicated by the arrow is started.

As a result, as shown in FIG. 12 (d), the transfer wire gripping clamp 10B1 transfers the wire W2 to the fixed wire gripping clamp 10A1 at the second position P2, and the wire is clamped by the fixed wire gripping clamp 10A1. When gripping W2, the transporting wire gripping clamp 10B1 releases the gripping of the wire W2. At the same time, the transport wire gripping clamp 10B2 is
After the electric wire W1 held by the fixed electric wire gripping clamp 10A1 at the second position P2 is gripped and the electric wire W1 of the fixed electric wire gripping clamp 10A1 is released, the electric wire W1 is held at the third position P3. It is transported to the clamp 10A2. In addition, the gripping clamp 25A of the cut peeling portion 25
The release of the electric wire from the fixed electric wire gripping clamp 10 </ b> A <b> 1 is set so as to be performed in synchronization.

Subsequently, as shown in FIG. 12 (e), at the same time, the transport wire gripping clamp 10B1 grips the third wire W3 at the first position P1, and the transport wire gripping clamp 10B2 moves at the second position. The wire W2 is gripped at P2, and the transport wire gripping clamp 10B3 grips the wire W1 at the third position P3. Next, after the gripping clamp 25A and the fixed-type wire gripping clamps 10A1 and 10A2 release the gripping of the wires W3, W2 and W1, the transport frame 30 moves in the transporting direction x, so that the respective transporting wire gripping clamps 10B1 and 10B2 and 10B3 can be advanced by one position of the electric wire to the upstream side in the transport direction. In this way, each fixed type electric wire gripping clamp 10A1, 10A2, 10A3
Can be conveyed to the transfer position shown in FIGS. 9 and 10.

Although the present embodiment has been described in the case where there are three fixed electric wire holding clamps as relay clamps, as shown in FIGS. 13 (a) to 13 (e), there are two fixed electric wire holding clamps. In this case, the same transport can be performed. The description of FIG. 13 is the same as the description of FIG.

In such a transport device 1, the second terminal crimping unit 28 is disposed on the side of the fixed electric wire holding clamp 10A3 at the fourth position P4, and is held by the fixed electric wire holding clamp 10A3. The terminal fitting is attached to the end of the electric wire W where the terminal fitting is not attached. In addition, an extraction wire gripping clamp 10C that receives the wire W can be located at the transfer position. This take-out wire holding clamp 1
0C is provided in the above-mentioned electric wire sending section 29.

Here, an electric wire gripping clamp 10C for taking out
The configuration of the electric wire sending section 29 including the same will be described. As shown in FIG. 9, this take-out wire gripping clamp 10C has substantially the same configuration as the wire gripping clamp 10 described above. The difference from the electric wire gripping clamp 10 is that a pivot shaft 41 provided integrally at the lower end of the support block 11 is provided.
Are rotatably supported on the device base side, and can be rotated about the pivot shaft 41 as a rotation axis. The pivot shaft 41 is integrally provided with a reversing gear 42. The driving gear 43 is combined with the reversing gear 42 so as to mesh with the reversing gear 42. The driving gear 44 is integrally provided with a rotating shaft 44, and the rotating shaft 44 is supported by a member on the device base side. The rotation shaft 44 of the drive gear 43 includes
One end of the cam arm 45 is integrally fixed. A long guide hole 45A is formed along the longitudinal direction at an intermediate portion near the other end of the cam arm 45. A guide projection 30A protruding from a predetermined position at an end of the transport frame 30 is slidably fitted in the guide long hole 45A. Therefore, with the reciprocating operation of the transport frame 30, the cam arm 45 can be rotated in the clockwise direction and the counterclockwise direction in FIG. 7 while the guide projection 30A slides on the guide long hole 45A of the cam arm 45. It has become. Along with this rotation, the drive gear 43 also rotates bidirectionally by a predetermined angle, and rotates the reversing gear 42 meshing with the drive gear 43 in a direction opposite to the drive gear 43. With the rotation of the reversing gear 42, the support block 11 moves between a position indicated by a two-dot chain line and a transfer position.

Next, the operation and operation of the transport device 1 having such a configuration will be described.

First, the front end of the electric wire W cut and cut by the cutting and peeling portion 25 (the terminal metal fitting is not attached to this portion) is connected to the electric wire gripping clamp 1 at the first position P1.
The pair of gripping blocks 14B is gripped between the pair of gripping blocks 14B. Here, the piston rod 3 of the reciprocating drive cylinder 31
The protrusion amount of No. 2 is maximum. Next, the transport frame 30 is moved by driving the reciprocating drive cylinder 31 so that the amount of protrusion of the piston rod 32 is minimized while the transport wire gripping clamp 10B1 grips the wire W. By this movement, the transport wire gripping clamp 10B1 is
It moves to the second position P2 while holding the electric wire W. Prior to the movement of the transfer wire gripping clamp 10B1, a pair of gripping blocks 1 of the fixed type wire gripping clamp 10A1 are provided.
Driving control is performed so that 4, 4 are opened.
Then, at the second position P2, the fixed electric wire gripping clamp 10A
1 is an electric wire W gripped by the transporting wire gripping clamp 10B1.
After that, the pair of gripping blocks 14, 14 of the transporting wire gripping clamp 10B1 is released, and the wire W is transferred to the fixed wire gripping clamp 10A1. At this time, the gripping blocks 14, 1 of the transport wire gripping clamp 10B1 are used.
4 is in a state of being opened in a horizontal state, so that it is at a position lower than the height of the electric wire W gripped by the fixed-type electric wire gripping clamp 10A1. For this reason, the transporting wire gripping clamp 10B1 can return to the first position P1 without being disturbed by the wires W during movement by maintaining this state.

Next, after the transport wire gripping clamp 10B1 transports the wire W to the fixed wire gripping clamp 10A1 and returns to the first position P1, the transporting wire gripping clamp 10B2 provided on the transport frame 30 is fixed. It moves to the second position P2 where the mold wire gripping clamp 10A1 is located.
The electric wire gripping clamp 10B2 is used for the electric wire W.
, The fixed-type electric wire holding clamp 10A1 releases the electric wire W and moves the holding blocks 14, 14 to a horizontal state.

Next, when the transfer frame 30 is driven and moves in the transfer direction, the transfer wire gripping clamp 10B2 moves to the third position P3 while holding the wire W. Then, similarly, the electric wire W is delivered to the fixed electric wire gripping clamp 10A2. The electric wire W grasped by the fixed electric wire gripping clamp 10A2 is similarly transferred to the fixed electric wire gripping clamp 10A3 at the fourth position P4 by the transfer gripping clamp 10B3. The second terminal crimping unit 28 described above is arranged at the fourth position P4, and the terminal fitting is crimped to the end of the electric wire W. The wire W to which the terminal fitting is crimped is transported to the delivery position by the transport wire gripping clamp 10B4. At this time, the extraction wire gripping clamp 10C is
It moves to the delivery position in synchronization with the transporting wire gripping clamp 10B4. That is, the transport wire gripping clamp 10
When B4 moves to the delivery position, the transport frame 3
0 also moves in the same direction at the same time.
By pressing the cam arm 45, the drive gear 43 is rotationally driven to rotate the reversing gear 42 in the clockwise direction in FIG.
Will move to the delivery position. At this time, a pair of gripping blocks 1 of the extraction wire gripping clamp 10C.
4 and 14 are driven so as to be in a state where they are spread apart as shown in FIG.

Then, an electric wire gripping clamp 10C for extraction
Is the transport wire gripping clamp 1 located at the delivery position
The electric wire W gripped at 0B4 is gripped. Thereafter, the transport wire gripping clamp 10B4 releases the wire W and moves toward the third position together with the transport frame 30. Since this movement also moves the guide projection 30A, the cam arm 45
Rotates clockwise in FIG. 9 to move the take-out wire gripping clamp 10C to the position indicated by the two-dot chain line in FIG. The electric wire holding clamp 10C for taking out can drop the electric wire W to a receiving plate (not shown) by opening the holding blocks 14, 14. Both ends of the electric wire W dropped onto the receiving plate are completed products in which terminal fittings are attached by the first terminal crimping unit 24 and the second terminal crimping unit 28.

The transfer apparatus 1 according to the present invention and the automatic cutting and pressing apparatus 20 to which the transfer method is applied have been described above.
In the present embodiment, the transport grip clamps 10B1 to 10B1
10B4 and fixed electric wire gripping clamps 10A1 to 10A3
This can be achieved by causing the transport frame 30 to reciprocate at a predetermined swing width using the gripping operation and the releasing operation. Further, in the present embodiment, since the guide rail 30B is provided to extend to the position where the connecting member 33 is provided in the transport frame 30, the guide rail 30B is driven by the piston rod 32 of the reciprocating drive cylinder.
0B enables smooth sliding and improves the rigidity of the transport frame 30. Further, by arranging a plurality of transporting wire gripping clamps and a plurality of fixed type wire gripping clamps, the stroke of the piston rod 32 of the reciprocating drive cylinder 31 can be shortened, and in combination with the use of the guide rail 30B. In addition, it is possible to perform an agile operation without rattling. For this reason, it is possible to carry the electric wire at high speed and with high efficiency. In the automatic cutting and crimping device 20, each electric wire gripping clamp (10
A1 to 10A3, 10B1 to 10B4, and 10C), the angle formed between one contact surface 15B located on the rotation center side of the gripping block 14 and the perpendicular S is larger than the angle formed between the other contact surface and the perpendicular. Is set. For this reason, when handling the electric wires W with different diameters in the automatic cutting and crimping device 20, it is possible to suppress the center axis of the electric wires W from being shifted due to the different diameters. Further, when the electric wire W is gripped, it is possible to prevent the portion on the one contact surface 15B side from hitting the electric wire as the grip block 14 rotates.

Although the embodiment has been described above, the present invention is not limited to this, and various design changes accompanying the gist of the configuration are possible. For example, in the above-described embodiment, the case where the transport device 1 is applied to the automatic cutting and crimping device 20 and the terminal fitting is mounted on the wire terminal has been described, but the transport mounting and the transport method according to the present invention perform other steps. It goes without saying that it can be applied to the device.

[0061]

As is apparent from the above description, according to the first aspect of the present invention, the wire can be smoothly transported and the reciprocating distance of the piston rod of the reciprocating drive cylinder can be reduced. Therefore, the electric wires can be sequentially conveyed by agile operation, and there is an effect that high-speed and efficient conveyance is enabled.

According to the second aspect of the invention, in addition to the effect of the first aspect, the guide rails constituting the slide mechanism are set to be substantially equal to the length of the transport frame in the sliding direction. The guide rail has the effect of increasing the rigidity of the transfer frame. For this reason, even if the conveyance frame tries to bend when the force of the piston rod is transmitted, the guide rail increases the rigidity of the transfer frame, so that the occurrence of the bending can be prevented, and the high-speed sliding operation can be prevented from rattling. Failure can be prevented.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, the stroke of the piston rod is adjusted by adjusting the position of the receiving clamp opposite to the pre-process position and the position of the receiving clamp. Is set so as to reciprocate between the position opposite to the relay clamp near the pre-process position, that is, the distance between the moving clamps (the distance between the fixed clamps is also the same), the projecting distance of the piston rod. By setting, it becomes possible to carry the electric wire by transferring the clamps. In addition, since the speed is reduced immediately before the piston rod protrudes and stops by the deceleration mechanism, even when the piston rod comes into contact with a stopper or the like, for example, it is possible to improve durability without violent collision.

According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects of the present invention, the number of the relay clamps and the number of the feed clamps are the same and plural, so that the reciprocating drive is performed. Even if the stroke of the cylinder is set short, it is possible to increase the transport distance of the electric wire. Therefore, the electric wire can be conveyed at a high speed by a short stroke agile operation.

According to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects, after the electric wire is conveyed, the electric wire is released by the gripping block, and the gripping block is rotated to the horizontal position. By moving, when the support block returns to the original position along with the slide of the transfer frame, it is possible to prevent the gripping block on the moving clamp side from being caught on the electric wire held on the fixed clamp side. Conversely, there is an effect of preventing the holding block on the fixed clamp side from being caught on the electric wire conveyed by the moving clamp.

According to the sixth aspect of the present invention, electric wires can be sequentially conveyed by agile operation, and there is an effect that high-speed and efficient conveyance is enabled.

According to the seventh aspect of the present invention, in addition to the effect of the sixth aspect of the present invention, by arranging a plurality of relay clamps and the same number of feed clamps, a long transport path can be secured with a short stroke. This has the effect. Therefore, for example, when a process for performing another process is added between the previous process position and the next process position, another process can be performed while being held by a predetermined relay clamp.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a transport device according to the present invention.

FIG. 2 is a side view of an electric wire gripping clamp applied to the transport device of the embodiment.

FIG. 3A is a perspective view illustrating a state in which a grip block in the transport device according to the embodiment is released, and FIG. 3B is a perspective view illustrating a state in which grip is performed by the grip block.

FIG. 4 is an explanatory diagram showing a state in which electric wires having different diameters are gripped in the embodiment.

FIG. 5 is an explanatory view showing a state in which electric wires having different diameters are gripped in a comparative example.

FIG. 6 is a side view showing a wire gripping clamp of a comparative example.

FIG. 7 is an overall plan view of an automatic cutting and pressing device to which the transfer device of the embodiment is applied.

FIG. 8 is a perspective view showing a swivel unit, a cut skin removing unit 25, and the transport device 1 in the embodiment.

FIG. 9 is a side view illustrating the transfer device according to the embodiment.

FIG. 10 is a plan view showing the transport device of the embodiment.

FIG. 11 is a perspective view illustrating a transport mechanism of the transport device according to the embodiment.

FIG. 12 is an explanatory diagram illustrating a transfer principle of the transfer device according to the embodiment.

FIG. 13 is an explanatory diagram showing a transport principle showing a modification of the embodiment.

FIG. 14 is a side view of a transfer device provided with a conventional electric wire gripping clamp.

[Explanation of symbols]

B Base x Transfer direction W Electric wire 1 Transfer device 10A1, 10A2, 10A3 Fixed electric wire gripping clamp 10B1, 10B2, 10B3, 10B4 Transfer electric wire gripping clamp 11 Support block 12 Rotating shaft 14 Holding block 30 Transport frame 30B Guide rail 31 Reciprocating drive cylinder 32 Piston rod 33 Connecting member 34 Stopper 51 Support wall 51A Guide

Claims (7)

[Claims] 1. A transport device for transporting an electric wire from a previous process position to a next process position, wherein the transport frame is slidably supported on a base, and the transport frame supported on the base is slid. A reciprocating drive cylinder to be driven, a plurality of fixed clamps arranged in sequence between the pre-process position and the next process position and fixed on the base; And a plurality of moving clamps, which can be opposed to the fixed clamp in accordance with the reciprocating operation of the transfer frame, the fixed clamp being disposed on a pre-process position side along the wire transfer direction. Relay clamp, and a receiving clamp disposed on the next process side and sending out the electric wire to the next process position side, wherein the moving clamp holds the electric wire from the previous process position side and A receiving clamp for transferring the electric wire at a position facing the relay clamp by moving the transfer frame, and holding the electric wire transferred to the relay clamp by moving the transfer frame and facing the receiving clamp. A transfer device comprising: a feed clamp for transferring an electric wire. 2. The transfer device according to claim 1, wherein the reciprocating drive cylinder is fixed to one surface of a support wall erected on a base, and the transfer frame is connected to the support wall via a slide mechanism. The slide mechanism is connected to a piston rod of the reciprocating drive cylinder, and the slide mechanism is slidably supported by the guide fixed to the other surface side of the support wall. Consists of guide rails fixed to the transport frame,
The transport device, wherein the guide rail is set substantially equal to the length of the transport frame in the sliding direction. 3. The transfer device according to claim 1, wherein the receiving clamp faces the pre-process position in a state where the piston rod is protruded, and the transfer clamp is in a state where the piston rod is retracted. A deceleration mechanism that drives the reciprocating drive cylinder so that the receiving clamp moves to a position facing the relay clamp closest to the pre-process position, and the reciprocating drive cylinder decelerates immediately before the piston rod protrudes and stops. A transport device comprising: 4. The conveying device according to claim 1, wherein a plurality of the relay clamps are provided along a conveying direction of the electric wire (W), and the feed clamp is A transfer device, wherein the same number of relay clamps are provided. 5. The transfer device according to claim 1, wherein the fixed clamp and the movable clamp are rotatably supported at different positions by the support block and the support block. A pair of rotating arms, and a pair of holding blocks fixed to the rotating arms and holding the wires at predetermined positions, wherein the pair of holding blocks hold the wires while holding the wires. The conveying device, wherein the pair of gripping blocks are rotationally moved to a horizontal position in a state in which the holding state of the electric wire is released while being held. 6. The transfer method using the transfer device according to claim 1, wherein the receiving clamp is located at a receiving position where the receiving clamp faces the pre-process position and the feed clamp faces the relay clamp. The clamp holds the wire from the previous process position, the feed clamp holds the wire held by the relay clamp, and after releasing the wire holding state of the relay clamp, moves the transport frame in the transport direction. And the receiving clamp faces the relay clamp,
At the feed position where the feed clamp is opposed to the receiving clamp, the relay clamp holds the wire conveyed by the receiving clamp, and the receiving clamp holds the wire conveyed by the feed clamp. And transferring the receiving clamp and the feed clamp to a receiving position after releasing the wire holding state of the feed clamp. 7. The transfer method according to claim 6, wherein a plurality of the relay clamps are arranged, and the same number of the feed clamps as the relay clamps are arranged.