JP3523088B2 - Transfer device and transfer method - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a carrying device and a carrying method.

[0002]

2. Description of the Related Art Conventionally, as an electric wire conveying means, one disclosed in Japanese Patent Laid-Open No. 6-96630 has been known.
As shown in FIG. 14, in the electric wire conveying means, a plurality of electric wire gripping clamps 61 are fixed to a chain (not shown), and each electric wire W is clamped to carry the electric wire W. The transfer claw 62 moves while holding the electric wire W, and releases the transfer claws 62, 62 to send the electric wire W to the product receiver 63. A concave portion 62a having a curved surface corresponding to the peripheral surface of the electric wire W is formed on each surface of the pair of conveying claws 62, 62 that holds the electric wire W between them.
Are formed. Then, the wire grip clamp 61 is
After the electric wire W is released from the conveying claw 62, the electric wire W is returned to the original position and gripped again by rotating in a loop with the chain.

[0003]

However, in the above-mentioned electric wire conveying means, the electric wire gripping position is determined according to the degree of rotation of the drive gear that rotationally drives the conveying chain, and the length of the chain is long. There is a concern that the gripping position of the wire may shift due to the adjustment of the sheath tension. Therefore, it is necessary to frequently perform maintenance management. In addition, since a chain is used for transportation, there is a problem that the number of parts is large and expensive, and rattling is likely to occur.

For this reason, there has been proposed a device that directly conveys an electric wire to the take-out portion side by a conveying cylinder without using a chain. There is a problem in that the electric wire cannot be efficiently conveyed at a high speed at a high speed because the distance becomes long and the conveying tact becomes long.

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

[0006]

The invention according to claim 1 is
A transport device for transporting an electric wire from a previous process position to a next process position, the transport frame slidably supported on a base, and a reciprocating drive cylinder for slidingly driving the transport frame supported on the base. A plurality of fixed clamps arranged in order between the previous process position and the next process position and fixed on the base, and fixed to the transport frame at the same intervals as the fixed clamps, A plurality of movable clamps that can face the fixed clamps as the carrier frame reciprocates, and a plurality of electric wires are sent from the carrier device.
An electric wire feeding section for ejecting the electric wire, and a relay clamp in which the fixed clamp is arranged on the side of the previous step along the conveying direction of the electric wire, and a receiver which is arranged on the side of the next step and sends out the electric wire to the side of the next step. An output clamp, the moving clamp holds the electric wire from the previous process position side, and receives the electric wire at a position opposed to the relay clamp by the movement of the transfer frame, and a receiving clamp of the transfer frame. holding the electric wire passed to the relay clamped by the movement in opposition to the受出clamp and a feed clamp passing the electric wire, the wire feed unit, electrostatic
Eject the wire from the transfer position where the wire is transferred and the transport device.
In the reciprocating motion of the transfer frame between the ejecting position
It is characterized in that it has a support block that can rotate more freely .

Therefore, in the first aspect of the invention, the transfer frame slides in the transfer direction while the electric wire at the previous process position is held by the receiving clamp (moving clamp), so that the electric wire is transferred by the relay clamp (fixed clamp). It can be transported. At the same time, the electric wire held by the relay clamp (fixed clamp) can be held by the feed clamp (movable clamp) and conveyed to the receiving clamp (fixed clamp). At this time, the transport frame slides for the return operation after the electric wire is held by the receiving clamp and the sending clamp, and the holding of the electric wire is released by the relay clamp and the receiving clamp. In this way, the electric wire can be transported from the previous process position to the next process position side. For this reason, since the reciprocating distance of the piston rod of the reciprocating drive cylinder is short, the electric wires can be sequentially conveyed by the agile operation, which enables the high-speed and efficient conveyance. Further, the support block supporting the grip block moves in the horizontal direction (conveyance direction), whereby the electric wire gripped by the grip block is conveyed in the horizontal direction. In addition, after the electric wire is conveyed, the electric wire is released by the grip block and the grip block rotates and moves to the horizontal position. Therefore, when the support block returns to the original position as the transfer frame slides, the electric wire is held by the fixed clamp side. It is possible to prevent the grip block on the moving clamp side from being caught on the electric wire. On the contrary, the gripping block on the fixed clamp side is prevented from being caught by the electric wire conveyed by the moving clamp.

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

Therefore, according to the second aspect of the invention, in addition to the operation of the first aspect of the invention, the piston rod of the reciprocating drive cylinder fixed to the support wall on the base side reciprocates to cause the slide mechanism. The transport frame can be smoothly slid through the. 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 the effect of increasing the rigidity of the transport frame. For this reason, even if the conveyance frame is bent when the force of the piston rod is transmitted, the guide rail increases the rigidity of the conveyance frame, so that the occurrence of bending can be prevented and a problem such as rattling in the sliding operation occurs. Can be prevented.

According to a third aspect of the present invention, there is provided the transfer device according to the first or second aspect, wherein the receiving clamp is opposed to the preceding step position in a state where the piston rod is projected, and the piston rod is provided. The reciprocating drive cylinder is driven so that the receiving clamp moves to a position facing the relay clamp closest to the previous process position in a state where the piston rod (32) projects. A transport device having a deceleration mechanism for decelerating immediately before stopping.

Therefore, in addition to the operation of the invention described in claim 1 and claim 2, the relay clamp is configured such that the stroke of the piston rod is set at a position where the receiving clamp is opposed to the previous process position and the receiving clamp is close to the previous process position. Position opposite to,
Since the reciprocating motion between the clamps is set, that is, by setting the distance between the moving clamps (the same between the fixed clamps) as the retracting distance of the piston rod, the electric wire transfer is passed between the clamps. Can be done by. Moreover, the piston rod is decelerated by the deceleration mechanism immediately before protruding and stopping.

The invention according to claim 4 is the carrying device according to any one of claims 1 to 3, wherein a plurality of relay clamps are provided along a carrying direction of the electric wire, and the feed clamp is provided. Are provided in the same number as the relay clamps.

Therefore, in the invention described in claim 4, in addition to the operation of the invention described in claims 1 to 3, the number of relay clamps and the number of feed clamps are the same and a plurality of reciprocating drives. Even if the stroke of the cylinder is set to be short, it is possible to increase the wire transport distance. Therefore, it becomes possible to carry the electric wire at a high speed with a short stroke and agile operation.

[0014]

[0015]

The invention according to claim 5 is the carrying device according to claim 1.
A transport method using a feeder, wherein the receiving clamp is
The feed clamp faces the front process position, and the feed clamp is
At the receiving position facing the relay clamp, the receiving clamp
Holds the wire from the previous process position and
Clamp holds the wire held by the relay clamp.
Then, after releasing the wire holding state of the relay clamp,
By moving the carrying frame in the carrying direction,
The feed clamp is opposed to the relay clamp.
At the feed position facing the output clamp,
The relay clamp holds the transferred electric wire,
The electric wire carried by the feed clamp is used as the receiving clamp.
Is held by the receiver clamp and the feed clamp.
After releasing the wire holding state, the receiving clamp and the sending
Move the clamp to the receiving position and support the wire sending unit.
The electric wire is discharged from the transport device by rotating the holding block .

Therefore, in the fifth aspect of the invention, the electric wire is conveyed from the downstream position to the upstream clamp to hold the electric wire in the conveying path from the previous process position to the next process position, and then the receiving clamp and At the same time, the feed clamp releases the holding of the electric wire and then the transport frame slides. Further, the fixed clamps (relay clamps and receiving clamps) located on the upstream side are in a state where the holding is released when the electric wire is conveyed from the downstream side, so that the electric wire can be transferred.

The invention according to claim 6 is the transport according to claim 5.
A method of sending, arranging a plurality of the relay clamps,
It is characterized in that the same number of feed clamps as the relay clamps are arranged .

Therefore, according to the sixth aspect of the present invention, by disposing a plurality of relay clamps and the same number of feed clamps, it is possible to secure a long transport path with a short stroke. 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.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a carrying device and a carrying method according to the present invention will be described in detail based on embodiments.

First, the carrying apparatus according to this embodiment will be described with reference to the plan view of FIG.

As shown in the figure, the carrier device 1 includes three fixed type electric wire gripping clamps 10A1, 10A2, 10A3.
And an electric wire gripping clamp 10B1, 10B2, 10B3, 10B4 for reciprocating along the conveying direction x,
These electric wire gripping clamps for transport 10B1, 10B2, 1
A transport frame 30 to which 0B3 and 10B4 are fixed and a reciprocating drive cylinder 31 that reciprocally drives the transport frame 30 in the transport direction x are roughly configured.

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

Further, in the lateral direction of the row of the fixed type electric wire gripping clamps 10A to 10A arranged in this way, the conveying direction x
A transport frame 30 is arranged along the line. The transport frame 30 includes a support wall 51 that is erected and fixed on the base B.
It is fixed to a piston rod 32 which is reciprocally driven by a reciprocating drive cylinder 31 which is fixed to a connecting member 33. A cylinder with a speed reduction mechanism is used as the reciprocating drive cylinder 31, and the deceleration works from a distance of 70 mm before the stop, for example. For this reason, although the maximum speed is a little faster, the stop can be performed smoothly, and shock absorbing means such as a shock absorber are not required, so that the structure is simplified. A guide rail 30B is integrally provided on the side surface of the transport frame 30 on the side of the support wall 51 along the transport direction x. This guide rail 30B is
In order to improve the rigidity of the transport frame 30, as shown in FIG. 1, it extends to the end of the transport frame 30 where the connecting member 33 is provided. Further, guides 51A and 51A are provided on the side surfaces of the support wall 51 facing the fixed type wire grip clamps 10A to 10A, and the guide rails 30B on the side of the transport frame 30 are slidably supported in the transport direction x. There is. Incidentally, reference numeral 34 in the drawing denotes a stopper that restricts the protrusion of the piston rod 32 beyond a predetermined length.

Further, on the surface of the carrying frame 30 which faces the fixed type wire gripping clamps 10A1 to 103, four carrying wire gripping clamps 10B1 to 10B4 are provided.
Are sequentially fixed along the transport direction x. In addition, the electric wire gripping clamps 10B1 to 10B4 for transportation are set to have the same interval as that of the fixed electric wire gripping clamps 10A1 to 10A3. Further, the heights of the electric wire gripping clamps 10B1 to 10B4 for conveyance are set to the same height as the fixed electric wire gripping clamps 10A1 to 103.

Then, of these carrying electric wire gripping clamps 10B1 to 10B4, the cutting and peeling portion 2 shown in FIG.
The electric wire gripping clamp 10B1 for conveyance closest to No. 5 is an electric wire in the passage path of the electric wire W in the cutting and peeling portion 25 (indicated by a chain line in the figure) with the piston rod 32 protruding from the reciprocating drive cylinder 31 to the maximum. It is set so as to be at a position where W can be sandwiched (hereinafter referred to as a first position). At this first position, the wire gripping clamp for transportation 10B1 as the receiving clamp is provided with the cutting peeling portion 2 which is the previous step.
It is a position where the electric wire W is received from 5. As we will see later,
The electric wire W that has been cut by the cutting peeling section 25 and that has the terminal fittings attached by the first terminal crimping unit is cut and stripped in a state in which it has been fed for a predetermined length. It is arranged so that the front end portion of W (the terminal metal fitting is not attached to this portion) can be gripped by the transport wire grip clamp 10B1 located at the first position. here,
The stroke of the piston rod 32 of the reciprocating drive cylinder 31 is the same as the above-mentioned wire clamps 10B1 to 10B4 for transportation.
It is set to correspond to the interval between them.

Therefore, the electric wire gripping clamp 10B for conveyance
Focusing on the electric wire clamp for transportation 10B1 at the first position, the 1 to 10B4 side moves to the position of the fixed electric wire gripping clamp 10A1 (hereinafter, referred to as the second position) as the relay clamp, and also moves to the first position. The reciprocating motion of returning is repeated. Similarly, another electric wire gripping clamp for transport 10B2
-10B4 is also a fixed type wire grip clamp 10A1-10A
3 side interval (transport wire gripping clamps 10B1-10
The same reciprocating operation as the interval on the B4 side is performed. In addition, the fixed type electric wire gripping clamps 10A2, 10 as the receiving clamps
The position of A3 is the third position, the fourth position, the piston rod 32 moves in the transport direction x, and the reciprocating cylinder 3 is moved.
The transfer position is defined as the position where the transport wire clamp 10B4 moves when the amount of protrusion from 1 is the shortest.

Further, as shown in FIG. 1, a second terminal crimping unit 28 is arranged on the side of the fixed electric wire gripping clamp 10A3 at the fourth position in the carrying 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 yet attached. Also, at the delivery position,
Electric wire gripping clamp 10 for taking out the electric wire W
C can be located. The take-out wire grip clamp 10C is provided in the wire feeding portion 29.

The structure of the carrier device has been described above. To clarify the structure in more detail, FIGS.
The configuration of the fixed type electric wire gripping clamp and the transporting electric wire gripping clamp will be collectively described as the electric wire gripping clamp 10 with reference to FIG.

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

In the present embodiment, the rotating shaft 1 is parallel to the upper portion of the support block 11 having a substantially rectangular parallelepiped shape with a predetermined distance therebetween.
A rotating arm 13 is supported on each of 2 and 12.
The rotation arm 13 is defined so as to rotate within a range of an angle of approximately 90 degrees between a horizontal position shown by a solid line in FIG. 2 and a vertical position shown by a two-dot chain line. . These rotating arms 13 and 13 are rotationally driven by a drive mechanism (not shown) that performs pneumatic driving, hydraulic driving, electric power driving, or the like, and when these rotating arms 13 and 13 approach each other, The electric wire W is sandwiched between the grip blocks 14.

The gripping blocks 14 are formed with gripping recesses 15 on the surfaces facing each other when they are close to each other. As shown in FIG. 2, the grip concave portion 15 has an abutment surface 15A forming an angle α with respect to a vertical line S perpendicular to the rotating arm 13 and an abutment surface 15B forming an angle β with respect to the vertical line S.
It is formed from and. The relationship between the angle α and the angle β is set so that α <β. In this embodiment, the angle β is set to be about 1.5 times the angle α. Note that the angle α and the angle β satisfy the relationship as described above, and the distance between the rotating shafts 12 and the rotating shaft 1
The length from 2 to the portion where the contact surfaces 15A and 15B of the grip recess 15 are joined (bottom of the grip recess 15) is appropriately set.

Further, as shown in FIG. 3, the grip block 1
4 has a plurality of contact surfaces 15A (3 in this embodiment).
A plurality of (3) gripping pieces 16A and abutting surfaces 15B.
And a gripping piece 16B. These gripping pieces 16
A is arranged in parallel in the width direction of the grip block 14 with a predetermined interval. Similarly, the gripping piece 16B is arranged corresponding to the gripping piece 16A. further,
The grip blocks 14 are arranged so as to be displaced by a predetermined distance in the rotation axis direction so that the other grip pieces 16A, 16B1 can be inserted into the respective gaps between the grip pieces 16A, 16B of the one grip block 14. There is. With such a configuration, the mutual holding blocks 14 are
The contact surface 15 contacts the outer peripheral surface of the electric wire W due to the close proximity and overlap.
A and 15B can be brought into contact with each other. FIG. 3 (a) shows the grip blocks 14, 14 in a horizontal position and in an open state, and FIG. 3 (b) shows that the rotating arm 13 is driven to rotate so that the grip blocks 14 come close to each other and the grip pieces are moved. 16A and 16B show a state in which they overlap each other.

FIG. 4 shows an electric wire gripping clamp 1 of this embodiment.
It is explanatory drawing which shows the state which hold | maintained the electric wire W of which 0 is a different diameter dimension. In the present embodiment, as shown in the figure, even if the electric wire W1 having a short diameter dimension and the electric wire W2 having a long diameter dimension are held by the holding recesses 15 of the holding block 14, the center axis of the electric wire W1 and the center of the electric wire W2 are held. The axis can be matched. Therefore, when the electric wire is clamped by such an electric wire grip clamp 10, the central axis of the electric wire can always be conveyed at the same height. Therefore, when the electric wire is supplied / conveyed to the device in which the terminal fitting is attached to the end of the electric wire W, complicated work such as setting the device and exchanging the grip block 14 is unnecessary, and the smooth work can be performed. To

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 this comparative example, the same parts as those of the wire gripping clamp 10 of the present embodiment are designated by the same reference numerals. In the electric wire gripping clamp 10 of the comparative example, as shown in FIG. 6, the contact surface 15A of the gripping block 14 and the perpendicular S
The angle formed by and the angle formed by the contact surface 15B and the perpendicular line S are both set to the same angle α. In the comparative example having such a setting, as shown in FIG.
2 is sandwiched, the contact surface 1 is formed along the outer circumference of the electric wire W2.
When the rotary arm 3 is rotated about the rotary shaft 12 so that the contact surface 5A and the contact surface 15B come into contact with each other, the central axis of the thick electric wire W2 moves upward as compared with the case of holding the thin electric wire W1. As a result, a displacement amount H occurs between the central axis of the thin electric wire W1 and the central axis of the thick electric wire that are sandwiched. On the other hand, FIG.
In the electric wire gripping clamp 10 of the present embodiment shown in FIG. 3, the angle between the contact surface 15A and the contact surface 15B with respect to the perpendicular S is β>
By setting α, thin wire W1 and thick wire W2
There is no deviation between the central axes of and.

The carrying device 1 of the present embodiment uses the electric wire gripping clamp 10 having such a structure as the fixed type electric wire gripping clamps 10A1 to 10A3 and the carrying wire gripping clamp 10B.
1 to 10B4, and when carrying electric wires of different diameter standards, for example, the conductor wire of the terminal crimping portion of the second terminal crimping unit 28 described above can be always kept at a fixed position, Workability can be significantly improved.

Next, an automatic electric wire cutting and crimping device to which the carrying device 1 and the carrying method of this embodiment are applied will be described with reference to FIGS.
This will be described with reference to FIG. The operation and operation of the carrier device 1 of this embodiment will be collectively described in the operation and operation of the automatic cutting and crimping device.

FIG. 7 is a plan view showing the entire automatic cutting and crimping device 20. The automatic cutting and crimping device 20 includes a wire straightening unit 21 in which a plurality of pairs of straightening rollers 22 that straightens the wire W supplied from a take-up reel are arranged to face each other, and a wire W to be supplied. Measuring wire feed-out part 23 for sending out while measuring the length, first terminal crimping unit 24 for crimping the end fitting to the wire end, cutting of the electric wire W sent out from the measuring wire feed-out part 23 and peeling of the insulation coating. A cutting stripping section 25, a swivel section 26 for moving the electric wire end section 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 gripping the front end of the wire W
Device 1 for carrying the wire and the electric wire W carried by the carrying part 1
Second terminal crimping unit 28 for crimping terminal fittings to the end of the
And an electric wire feeding portion 29 for feeding the electric wire W having the terminals attached thereto in the second terminal crimping unit 28.

The electric wire W supplied from the take-up reel (not shown) passes between the correction rollers 22 to 22 of the electric wire correction portion 21 along the y direction shown by the arrow in FIG. It is designed to be straightened by contact pressure. Electric wire W that has passed through the electric wire straightening section 21
Is set so as to be fed out by the feeding length set by the measuring feed portion 23. Here, in the initial stage of setting the electric wire W for the first time, the electric wire W sent out is
At the tip of the, the insulation coating is peeled off in a predetermined length range at the cut peeling portion 25. In the swivel unit 26, the swivel drive unit (not shown) swivels the swivel shaft 26a as a fulcrum to move the end of the electric wire W to the first terminal crimping unit 24 side. First terminal crimping unit 2
No. 4 has a terminal fitting attached to the end of the electric wire W moved by the turning portion 26. The electric wire W to which the terminal fitting is attached by the first terminal crimping unit 24 is returned to the original position by the swivel portion 26 and is arranged along the y direction, as shown in FIG. 8. After that, the electric wire W is sent out by a measuring length sending section 23 by a predetermined length (shown by a solid line in FIG. 8), and the cut stripping section 25 cuts the electric wire W and peels off the coating. Next, the electric wire W separated by cutting is cut and stripped by the peeling section 2
5 is gripped by the gripping clamp 25A, but when the gripping by the gripping clamp 25A is released after being gripped by the transporting clamp 10B1, the second grip is performed by the transporting unit 27.
The sheet is conveyed toward the terminal crimping unit 28 side along a conveying direction x shown by an arrow in the figure.

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

As shown in FIGS. 9 and 10, a carrying frame 30 is arranged along the carrying direction at the side of the row of fixed electric wire gripping clamps 10A to 10A arranged in this way. The transport frame 30 is fixed to a piston rod 32, which is reciprocally driven by a reciprocating drive cylinder 31 fixed to the support wall 51 side, via a connecting member 33. Incidentally, reference numeral 34 in the drawing denotes a stopper that restricts the protrusion of the piston rod 32 beyond a predetermined length.

Further, on the surface of the carrying frame 30 facing the fixed type wire gripping clamps 10A1 to 103, four carrying wire gripping clamps 10B1 to 10B4 are provided.
Are sequentially fixed along the transport direction. In addition, the electric wire gripping clamps 10B1 to 10B4 for transportation are set to have the same interval as that of the fixed electric wire gripping clamps 10A1 to 10A3. Further, the height of the carrying wire grip clamp 10B is set to be the same as the height of the fixed wire grip clamp 10A.

Among these wire-conveying wire gripping clamps 10B1 to 10B4, the wire-conveying wire gripping clamp 10B1 located in the first position has the piston rod 32 protruding from the reciprocating drive cylinder 31 to the maximum extent. It is set so that the electric wire W is sandwiched by the passage of the electric wire W in the stripping portion 25. That is, the electric wire W that has been cut by the cutting stripping section 25 and that has the terminal fittings attached by the first terminal crimping unit 24 is cut and stripped in a state where it has been fed for a predetermined length. It is arranged so that the front end portion of the electric wire W (in this portion, the terminal fitting is not attached) can be gripped by the carrying electric wire grip clamp 10B1 at the first position. 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 transport electric wire clamps 10B1 to 10B4 as described above.

Therefore, the electric wire gripping clamp 10B for conveyance is used.
1-10B4 side, as shown in FIG. 11, the first position P1
The electric wire clamp 10B1 for conveyance in FIG. Conveys 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 for reciprocation perform the reciprocating operation by the distance on the fixed electric wire gripping clamps 10A1 to 10A3 side (the same as the distance on the electric wire gripping clamps 10B1 to 10B4 side for conveyance) in the conveyance direction x. The electric wire W located on the downstream side is conveyed to a position on the upstream side.

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

FIG. 12A shows the carrying state when the first electric wire W1 is first placed at the first position P1.
As shown in the figure, the transport wire grip clamp 10B1 is
The electric wire W1 is gripped and moved to the second position P2. It should be noted that the circles shown in each clamp indicate the electric wire gripping state.

Next, as shown in FIG. 12 (b), the fixed type wire gripping clamp 10A1 at the second position grips the wire W1 conveyed from the wire gripping clamp 10B1 for conveyance,
The transport wire grip clamp 10B1 releases the grip of the wire W1 and returns to the first position P1 as indicated by the arrow.

Then, as shown in FIG. 12C, the first
The electric wire gripping clamp 10B1 for transportation which has returned to the position is the second
The second electric wire W2 is grasped, and at the same time, the electric wire conveying clamp 10B2 for conveyance grasps the electric wire W1 at the second position P2. At this time, in the first position, the gripping clamp 25A of the cut stripping section 25 releases the grip of the electric wire W2, and at the same time, the fixed wire gripping clamp 10A1 in the second position releases the grip of the electric wire W1. After that, the movement starts in the transport direction indicated by the arrow.

As a result, as shown in FIG. 12 (d), the electric wire gripping clamp 10B1 for conveyance conveys the electric wire W2 to the fixed electric wire gripping clamp 10A1 at the second position P2, and the electric wire gripping clamp 10A1 moves the electric wire W2. When W2 is gripped, the transport wire grip clamp 10B1 releases the grip of the wire W2. At the same time, the transport wire grip clamp 10B2
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 conveyed to the clamp 10A2. In addition, the gripping clamp 25A of the cut stripping section 25
And the fixed electric wire gripping clamp 10A1 is set to release the gripping of the electric wire in synchronization.

Subsequently, as shown in FIG. 12E, at the same time, the carrier wire gripping clamp 10B1 grips the third wire W3 at the first position P1, and the carrier wire gripping clamp 10B2 is held at the second position. The wire W2 is gripped at P2, and the transport wire grip 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 transport direction x, so that the respective transport wire gripping clamps 10B1, 10B2 and 10B3 can advance one wire position upstream in the transport direction. In this way, each fixed electric wire gripping clamp 10A1, 10A2, 10A3
The electric wire can be transferred to the delivery position shown in FIGS.

The present embodiment has been described above in the case where there are three fixed type wire gripping clamps as relay clamps. However, as shown in FIGS. 13 (a) to 13 (e), two fixed type wire gripping clamps are used. Similar transportation can be performed in this case as well. Note that the description of FIG. 13 is the same as the description of FIG.

In the carrying device 1 as described above, the second terminal crimping unit 28 is arranged on the side of the fixed type wire gripping clamp 10A3 at the fourth position P4, and is gripped by the fixed type wire gripping clamp 10A3. The terminal fitting is attached to the end of the electric wire W where the terminal fitting is not attached. Further, a take-out electric wire gripping clamp 10C for receiving the electric wire W can be located at the delivery position. This electric wire gripping clamp 1
0C is provided in the electric wire sending-out part 29 mentioned above.

Here, the electric wire gripping clamp 10C for taking out
And the structure of the electric wire sending-out part 29 containing this is demonstrated. As shown in FIG. 9, the take-out electric wire gripping clamp 10C has substantially the same configuration as the electric wire gripping clamp 10 described above. The difference from the wire gripping clamp 10 is that a pivot shaft 41 integrally provided at the lower end of the support block 11 is provided.
Is rotatably supported on the device base side, and can be rotated about the pivot shaft 41 as a rotation axis. Further, the pivot shaft 41 is integrally provided with a reversing gear 42. The drive gear 43 is combined with the reversing gear 42 so as to mesh with each other. The drive gear 44 is integrally provided with a rotary shaft 44, and the rotary shaft 44 is pivotally supported by a member on the device base side. The rotation shaft 44 of the drive gear 43 has
One end of the cam arm 45 is integrally fixed. An elongated guide hole 45A is formed along the longitudinal direction at an intermediate portion of the cam arm 45 near the other end. A guide projection 30A protruding at a predetermined position on the end portion of the transport frame 30 is slidably fitted into the long guide hole 45A. Therefore, the cam arm 45 can be rotated in the clockwise direction and the counterclockwise direction in FIG. 7 while the guide protrusion 30A slides in the guide long hole 45A of the cam arm 45 as the transport frame 30 reciprocates. It is like this. Along with this rotation, the drive gear 43 also bidirectionally rotates by a predetermined angle to rotate the reversing gear 42 meshing with the drive gear 43 in the 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 chain double-dashed 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 that has been cut and cut off by the cutting stripping section 25 (this part has no terminal metal fitting) is at the first position P1 for the electric wire gripping clamp 1 for transporting.
It is held between the pair of holding blocks 14 of 0B1. Here, the piston rod 3 of the reciprocating drive cylinder 31
The protrusion amount of 2 is the maximum. Next, while the electric wire gripping clamp 10B1 for conveyance holds the electric wire W, the reciprocating drive cylinder 31 drives the piston rod 32 so that the protrusion amount of the piston rod 32 is minimized to move the conveying frame 30. By this movement, the electric wire gripping clamp 10B1 for transportation is
The electric wire W is moved to the second position P2 while being held. Prior to the movement of the transport wire grip clamp 10B1, the pair of grip blocks 1 of the fixed wire grip clamp 10A1.
The drive control is performed so that 4 and 14 are opened.
Then, at the second position P2, the fixed electric wire gripping clamp 10A
1 is an electric wire W grasped by the electric wire grasping clamp 10B1 for transportation
And then the pair of grip blocks 14 of the electric wire grip clamp 10B1 for transport is released to transfer the electric wire W to the fixed electric wire grip clamp 10A1 side. At this time, the gripping blocks 14 and 1 of the transport wire gripping clamp 10B1
Since 4 is in a horizontally opened state, the position is lower than the height of the electric wire W gripped by the fixed-type electric wire grip clamp 10A1. Therefore, by keeping this state, the transport wire grip clamp 10B1 can return to the first position P1 without being obstructed by the wire W when moving.

Next, after the electric wire gripping clamp 10B1 for conveyance conveys the electric wire W to the fixed type electric wire grasping clamp 10A1 and then returns to the first position P1, the electric wire grasping clamp 10B2 for conveyance provided on the conveying frame 30 is fixed. The mold wire grip clamp 10A1 is moved to the second position P2.
And, this electric wire gripping clamp 10B2 for transportation is the electric wire W.
After gripping, the fixed wire gripping clamp 10A1 releases the wire W and moves the gripping blocks 14, 14 to a horizontal state.

Next, when the carrying frame 30 is driven and moved in the carrying direction, the carrying wire holding 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 grip clamp 10A2. The electric wire W gripped by the fixed electric wire gripping clamp 10A2 is similarly delivered to the fixed electric wire gripping clamp 10A3 at the fourth position P4 by the carrying 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 electric wire W to which the terminal fitting is crimped is conveyed to the delivery position by the electric wire grip clamp 10B4 for conveyance. At this time, the take-out wire grip clamp 10C is
It moves to the delivery position in synchronization with the electric wire gripping clamp 10B4 for transportation. That is, the transport wire grip clamp 10
When B4 moves to the delivery position, the transport frame 3
Since 0 also moves in the same direction at the same time, guide projection 30A
Pushes the cam arm 45 to rotationally drive the drive gear 43 to rotate the reversing gear 42 in the clockwise direction in FIG. 9, and accordingly the take-out wire grip clamp 10C.
Will move to the delivery position. At this time, the pair of grip blocks 1 of the take-out wire grip clamp 10C
Nos. 4 and 14 are driven so as to be in an expanded state with respect to each other as shown in FIG.

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

The automatic cutting and crimping device 20 to which the carrying device 1 and the carrying method according to the present invention are applied has been described above.
In the present embodiment, the transport grip clamps 10B1 to 10B1.
10B4 and fixed type electric wire gripping clamps 10A1 to 10A3
This can be achieved by reciprocating the transport frame 30 with a predetermined swing width using the gripping operation and the releasing operation. Further, in the present embodiment, the guide rail 30B is provided so as to extend to the position where the connecting member 33 is provided in the transport frame 30, so that the guide rail 3 is driven when 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 carrying electric wire gripping clamps and fixed type electric wire gripping clamps respectively, the stroke of the piston rod 32 of the reciprocating drive cylinder 31 can be shortened, and this is combined with the adoption of the guide rail 30B. , It can perform agile movements without rattling. Therefore, it is possible to carry the electric wire at high speed and with high efficiency. In addition, in the automatic cutting and crimping device 20, each wire gripping clamp (10
A1 to 10A3, 10B1 to 10B4, and 10C), the angle formed by one of the contact surfaces 15B located on the rotation center side of the grip block 14 and the perpendicular line S is larger than the angle formed by the other contact surface and the perpendicular line. It is set. Therefore, when the electric wires W having different diameters are handled by the automatic cutting and crimping device 20, it is possible to prevent the center axis of the electric wires W from being displaced due to the difference in diameter. Further, it is possible to prevent the portion on the side of the one contact surface 15B from hitting the electric wire due to the rotation of the grip block 14 when gripping the electric wire W.

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 can be made. For example, in the above-described embodiment, the case in which the carrier device 1 is applied to the automatic cutting and crimping device 20 to mount the terminal fitting on the wire end has been described, but the carrier mounting and carrying method according to the present invention performs other steps. It goes without saying that it can be applied to a device.

[0061]

As is apparent from the above description, according to the first aspect of the invention, the electric wire can be smoothly conveyed, and the reciprocating distance of the piston rod of the reciprocating drive cylinder can be shortened. Therefore, there is an effect that the electric wires can be sequentially conveyed by a quick operation, and high-speed and efficient conveyance can be performed. In addition, after the electric wire is conveyed, the electric wire is released by the grip block and the grip block rotates and moves to the horizontal position. Therefore, when the support block returns to the original position as the transfer frame slides, the electric wire is held by the fixed clamp side. It is possible to prevent the grip block on the moving clamp side from being caught on the electric wire.
On the contrary, there is an effect of preventing the holding block on the fixed clamp side from being caught by the electric wire conveyed by the moving clamp.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, 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 transport frame. Therefore, even if the conveyance frame is bent when the force of the piston rod is transmitted, the guide rail increases the rigidity of the conveyance frame, so that the occurrence of bending can be prevented and rattling or the like occurs even in a high-speed sliding operation. It is possible to prevent problems from occurring.

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 set to the position where the receiving clamp faces the previous process position and the receiving clamp. Is set to reciprocate between the position facing the relay clamp near the previous process position and the position, that is, the interval between the moving clamps (the interval between the fixed clamps is the same). By setting, it becomes possible to carry the electric wire by passing between the clamps. Further, since the deceleration mechanism decelerates immediately before the piston rod projects and stops, the durability can be improved without violent collision even when the piston rod comes into contact with the stopper, for example.

According to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the number of relay clamps and the number of feed clamps are the same and a plurality of reciprocating drives. Even if the stroke of the cylinder is set to be short, it is possible to increase the wire transport distance. Therefore, the wire can be conveyed at high speed with a short stroke and agile operation.

According to the invention of claim 5, in addition to the effects of the inventions of claims 1 to 4, after the electric wire has been conveyed, the electric wire is released by the grip block and the grip block is rotated to a horizontal position. It is possible to prevent the holding block on the moving clamp side from being caught by the electric wire held on the fixed clamp side when the support block returns to the original position as the support frame slides due to the movement. On the contrary, there is an effect of preventing the holding block on the fixed clamp side from being caught by the electric wire conveyed by the moving clamp.

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

According to the invention described in claim 6, in addition to the effect of the invention described in claim 6, by arranging a plurality of relay clamps and the same number of feed clamps, a long conveyance path can be secured with a short stroke. There is an 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 drawings]

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

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

FIG. 3A is a perspective view showing a state where a grip block is released in the carrying device of the embodiment, and FIG. 3B is a perspective view showing a state where the grip block is gripped.

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 diagram showing a state in which electric wires having different diameters are gripped in a comparative example.

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

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

FIG. 8 is a perspective view showing a swivel unit, a cut stripping unit 25, and a carrying device 1 in the embodiment.

FIG. 9 is a side view showing the carrying device according to the embodiment.

FIG. 10 is a plan view showing the carrying 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 transport principle of the transport device according to the embodiment.

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

FIG. 14 is a side view of a carrier device including a conventional wire grip clamp.

[Explanation of symbols]

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

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01R 43/052 H01R 43/048 H01B 13/00 H01B 13/00 513 H02R 1/14

Claims (6)

(57) [Claims] 1. A transport device for transporting an electric wire from a previous process position to a next process position, wherein a transport frame slidably supported on a base and a transport frame supported on the base are slid. A reciprocating drive cylinder to be driven, a plurality of fixed clamps which are arranged between the previous process position and the next process position and are fixed on the base in order, and the same interval as the fixed clamp on the transfer frame. And a plurality of movable clamps that can be opposed to the fixed clamp according to the reciprocating movement of the transport frame, and an electric wire.
An electric wire feeding section for feeding the electric wire from the conveying device, and a relay clamp in which the fixed clamp is arranged on the side of the previous step along the conveying direction of the electric wire, and an electric wire which is arranged on the side of the next step to the side of the next step. A receiving clamp for sending out, the moving clamp holds the electric wire from the previous process position side, and receives the electric wire at a position facing the relay clamp by the movement of the transfer frame, and the transfer clamp. A feed clamp for holding the electric wire transferred to the relay clamp by the movement of the frame and for transferring the electric wire to face the receiving clamp, wherein the electric wire sending-out portion transfers the electric wire.
Between the storage device and the discharge position where the electric wire is discharged from the transport device.
A support block that can be rotated by the reciprocating motion of the transport frame
Conveying apparatus, characterized in that a. 2. The transfer device according to claim 1, wherein the reciprocating drive cylinder is fixed to one surface side of a support wall erected on a base, and the transfer frame is mounted on the support wall via a slide mechanism. And a guide fixed to the other surface of the support wall, and slidably supported by the guide. It consists of a guide rail fixed to the transport frame,
A conveying device, wherein the guide rail is set to be substantially equal to a length of the conveying frame in a sliding direction. 3. The conveying device according to claim 1, wherein the receiving clamp is opposed to the previous step position in a state where the piston rod is projected, and the receiving clamp is in a state where the piston rod is retracted. The reciprocating drive cylinder is driven so that the receiving clamp moves to a position facing the relay clamp closest to the previous process position, and the reciprocating drive cylinder decelerates immediately before the piston rod projects and stops. A transport device comprising: 4. The transfer device according to claim 1, wherein a plurality of the relay clamps are provided along a transfer direction of the electric wire (W), and the feed clamps are provided. A conveying device, which is provided with the same number as the relay clamps. 5. A transportation method using the transportation device according to claim 1.
The receiving clamp is opposed to the previous process position, and
Receiving position where the feed clamp faces the relay clamp
The receiving clamp holds the wire from the previous process position.
While holding the feed clamp to the relay clamp
Holds the held wire and holds the wire of the relay clamp
After releasing the state, move the transport frame in the transport direction.
Moving, the receiving clamp faces the relay clamp,
Feed position where the feed clamp faces the receiving clamp
The relay of the electric wire conveyed by the receiving clamp
Clamp is held and transported by the feed clamp
The electric wire is held by the receiving clamp and the receiving clamp and
And after releasing the wire holding state of the feed clamp,
Move the receiving clamp and the feed clamp to the receiving position.
Then, by rotating the support block of the wire sending unit,
The electric wire is discharged from the storage device. 6. The transport method according to claim 5, wherein a plurality of the relay clamps are arranged, and the feed clamps are arranged in front of each other.
A transport method characterized by arranging the same number of relay clamps .