JPH0970785A - Hand chuck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To take wires of the desired number out of a large number of wires. SOLUTION: A hand chuck is provided with a base plate 12, and a pair of guide pieces 18 are provided on each side in the width direction on the front side of the base plate 12. A main operation piece 20 is provided between the guide pieces 18, and a main holding piece 24 is provided on both side in the width direction of the main operation piece 20. A sub operation piece 29 to be connected to the main operation piece 20 is provided on the front side of the main operation piece 20, and a sub holding piece 34 is provided on both side in the width direction of the sub operation piece 29. The main holding piece 24 and the sub holding piece 34 are energized in the constantly approaching direction. When the main operation piece 20 and the sub operation piece 29 are moved upward with a plurality of wires inserted between the main holding piece 24 and the sub holding piece 34, the respective wires are held by the sub holding pieces 34. One wire out of the wires held by the sub holding pieces 34 is held by the main holding pieces 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand chuck for holding a wire rod.

[0002]

2. Description of the Related Art Conventionally, a hand chuck for gripping a wire rod is provided with a pair of gripping pieces so as to be movable toward and away from each other. The hand chuck configured as described above is used, for example, when inserting a wire into a connector. In this case, the wire rod is arranged between both gripping pieces of the hand chuck, and the wire rod is gripped between both gripping pieces by bringing the gripping pieces close to each other.
Then, the hand chuck is moved so that the wire gripped by the hand chuck moves in the axial direction and toward the connector which is fixedly held in a predetermined position in advance. Then, the end of the wire material gripped by the hand chuck is inserted into the insertion hole formed in the connector, and the wire material is inserted into the connector.

[0003]

However, in the above hand chuck, since the pair of gripping pieces only approach each other to grip the wire rod, a desired number of wire rods can be gripped from a large number of wire rods stacked and stored. There was a problem that I could not take it out.

The present invention has been made to solve the above problems, and a first object thereof is to take out a desired number of wire rods from a large number of wire rods. The second purpose is
The purpose is to make the second gripping member surely grip a desired number of wires.

A third object is to ensure that the second gripping member grips the wire rod gripped by the first gripping member. A fourth object is to make it easier for the second grip portion to grip a desired number of wires.

A fifth object is to surely hold a desired number of wires between the first holding members.

[0007]

In order to achieve the above object, in the invention according to claim 1, in particular, a pair of first gripping members capable of gripping a plurality of wire rods and a gripping member by the first gripping member. The pair of second gripping members for gripping a desired number of wire rods out of the plurality of wire rods thus formed are provided.

According to a second aspect of the invention, the pair of first
The gripping members are capable of approaching each other up to a predetermined distance, and a predetermined number of holding portions capable of holding one wire member are provided on the facing surfaces of the pair of second gripping members.

According to a third aspect of the invention, the pair of first
The grip member is movably provided such that the wire rod gripped by the first grip member is positioned corresponding to the holding portion between the pair of second grip members.

According to the invention of claim 4, the pair of first
The gripping member is provided so as to be relatively movable in the passing direction.
According to a fifth aspect of the present invention, a predetermined number of recesses for holding one wire are provided on the opposing surfaces of the pair of first gripping members, and both first gripping members are provided on both of them. It is assumed that the recesses move relative to each other so that they are positioned correspondingly.

That is, according to the first aspect of the invention, when the hand chuck is moved toward a large number of wire rods stacked and stored, a plurality of wire rods are inserted between the pair of first gripping members. When the first gripping members are brought close to each other in this state, the plurality of wire rods are gripped by the first gripping members. Also, the plurality of wire rods held by both the first holding members are inserted between the pair of second holding members. Then, when both the second gripping members are brought close to each other, a desired number of wire rods are gripped by the second gripping member from among the plurality of wire rods, and the other wire rods fall out from between the first gripping members.

According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, a plurality of wire rods held by the first holding members are inserted between the second holding members.
The second gripping members are brought close to each other. Then, the desired number of wire rods among the plurality of wire rods are respectively held between the holding portions that are recessed in the facing surfaces of the second gripping members, and the other wire rods are held between the first gripping members. It spills.

According to the third aspect of the invention, in addition to the function of the second aspect of the invention, the first gripping members for gripping a plurality of wire rods have a structure in which the wire rods are held between the holding portions of the second gripping members. Is moved to correspond to. Then, the wires are inserted between the second gripping members, and when the second gripping members are brought close to each other, a desired number of wires are gripped between the holding portions of the second gripping members. .

According to the invention described in claim 4, in addition to the operation of the invention described in any one of claims 1 to 3, in the state in which a plurality of wire rods are held between both first holding members, both first The gripping members are relatively moved in a direction in which they pass each other. Then, the wire rods are arranged so as to be in parallel with respect to the direction in which the first gripping members relatively move by rolling between the wire rods.

According to the invention of claim 5, in addition to the operation of the invention of claim 4, when a plurality of wire rods are held between both the first holding members, one of the wire rods becomes the first wire rod. It is shallowly inserted into the recess provided in the grip member. In this state, when the first gripping members are moved relative to each other, the depressions provided in the first gripping members are positioned corresponding to each other. As a result, one wire is reliably held between the recesses of the first gripping members.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the hand chuck 11 has a substrate 12. The mounting portion 1 is provided on the upper end of the substrate 12.
3 are provided. The attachment portion 13 is adapted to be attached to various machines. As shown in FIG.
The lower end portions on both sides in the width direction are formed in a tapered shape so that the width of the substrate 12 decreases as it goes downward. A pair of protrusions 14 projecting downward are provided at the lower end of the substrate 12.
a is provided, and the stopper portion 14b is provided between both protrusions 14a.
Is provided.

A pair of screw holes 15 are formed in parallel with each other in the vertical direction on both sides of the substrate 12 in the width direction. In the board 12, a pair of screw holes 16 are formed in parallel between the upper screw holes 15 in the horizontal direction, and a pair of elongated holes 17 are formed below the pair of screw holes 16 in the horizontal direction. It is formed in parallel. Both the long holes 17 are provided so as to extend in the horizontal direction. Further, on the front side of the substrate 12, a pair of guide pieces 18 extending in the vertical direction are provided at positions corresponding to the screw holes 15 on both sides in the width direction. Through holes 19 are provided in the guide pieces 18 at positions corresponding to the screw holes 15.

A main operation piece 20 is provided between the guide pieces 18. The main operation piece 20 is the head 2 that extends in the horizontal direction.
1a, a body portion 21b extending downward from the longitudinal center of the head portion 21a, and an operation portion 21c protruding downward from the lower end of the body portion 21b. Screw holes 22 are provided at both ends of the head portion 21a in the longitudinal direction. The tapered portion 2 is provided at the lower end of the operating portion 21c.
3 is provided, and the width of the tapered portion 23 is reduced as it goes downward.

Main gripping pieces 24 as second gripping members are provided on both sides of the body portion 21b in the width direction.
In the main gripping piece 24, a through hole 25 is provided at a position corresponding to the screw hole 16 of the substrate 12, and a screw hole 26 is provided at a position corresponding to the elongated hole 17. Both main gripping pieces 24
The lower ends of the grips 27 are provided with grips 27 that project downward. A holding groove 27a, which serves as a holding portion and is formed in a circular arc shape having the same diameter as the wire rod, is provided on the opposing surfaces of the two gripping portions 27 so as to extend in the horizontal direction.
The operation portion 21c of the main operation piece 20 is inserted between the grip portions 27. On the surfaces of the two main gripping pieces 24 facing each other, tapered surfaces 28 are provided on the upper side of the gripping portions 27 so as to widen upward.

A sub-operation piece 29 is provided on the front side of the main operation piece 20. The sub-operation piece 29 includes a head portion 30a, a body portion 30b, and an operation portion 30c, like the main operation piece 20. A through hole 31 is provided in the head portion 30a at a position corresponding to the screw hole 22 of the main operation piece 20. At the upper end of the body portion 30b, hooking portions 32 are cut out on both sides in the width direction. Operation unit 30c
A taper portion 33 is provided at the lower end of the same as the operation portion 21c of the main operation piece 20. The width of the tapered portion 33 is reduced as it goes downward.

Sub-holding pieces 34 as first holding members are provided on both sides of the body portion 30b in the width direction.
A slit 35 extending in the vertical direction is formed in each of the sub-holding pieces 34. The slit 35 is provided so that the upper end thereof is located corresponding to the through holes 25 of both the main gripping pieces 24. Screw holes 36 are provided in the sub-holding pieces 34 at positions corresponding to the screw holes 26 of the main holding pieces 24. Hook pieces 37 are provided on the upper ends of the sub-holding pieces 34 so as to project so as to face each other. This hooking piece 37
Is inserted in the hook portion 32 of the sub operation piece 29.

A grip portion 38 is provided at the lower end of each of the sub-holding pieces 34 so as to project downward. The lower end of the grip portion 38 is located below the lower end of the grip portion 27 of the main grip piece 24, as shown in FIGS. Opposing surfaces of both gripping portions 38 are formed in a tapered shape that widens downward. The operation portion 30c of the sub operation piece 29 is inserted between the two grip portions 38. The insertion amount of the operation portion 30c into the grip portion 38 is smaller than the insertion amount of the operation portion 21c of the main operation piece 21 into the grip portion 27.
Further, the gripping portions 38 are provided on the surfaces of the sub gripping pieces 34 facing each other.
Tapered surface 39 that expands upward as it goes upward
Are provided respectively.

Then, as shown in FIG. 5 (a), when the sub-operation piece 29 is pulled upward, the lower end portions of the hooking pieces 37 of both the sub-holding pieces 34 become the lower end portions of the hooking portions 32 of the sub-operation piece 29. It is designed to be hooked. In this state, the lower ends of the tapered surfaces 39 of both the sub-holding pieces 34 are the sub-operation pieces 2.
It contacts the tapered portion 33 of No. 9, and the distance between both gripping portions 38 becomes the minimum value. The vertical length of the hook portion 32 is set to such a value that the lower end of the tapered surface 39 contacts the tapered portion 33 when the lower end portion of the hook piece 37 is caught by the lower end portion of the hook portion 32.

As shown in FIG. 3, an auxiliary plate 40 is provided on the front side of the sub operation piece 29. The auxiliary plate 40 is the substrate 1
It is formed in a substantially pentagonal shape having the same shape as the lower end portion of 2. At the lower end portion of the auxiliary plate 40, the protrusions 4 are formed similarly to the substrate 12.
1a and a stopper portion 41b are provided. Further, in the auxiliary plate 40, a through hole 42 is provided at a position corresponding to the through hole 19 of the guide piece 18, and a through hole 4 is provided at a position corresponding to the upper end portion of the slit 35 in the auxiliary gripping piece 34.
3 are provided. Further, in the auxiliary plate 40, a communication hole 44 that opens so as to surround the screw hole 36 is provided at a position corresponding to the screw hole 36 of the auxiliary gripping piece 34. The communication hole 44 is formed so as to extend in the vertical direction, and the width of the communication hole 44 is larger than the diameter of the screw hole 36.

In the screw hole 16 of the substrate 12, the through hole 43 of the auxiliary plate 40, the slits 35 of the sub-holding pieces 34,
Bolts 45 shown in FIG. 1 are screwed into the through holes 25 of both main gripping pieces 24. The auxiliary gripping piece 34 and the main gripping piece 24 are rotatable around a bolt 45. The bolt 46 shown in FIG. 1 is screwed into the screw hole 15 of the substrate 12 through the through hole 42 of the auxiliary plate 40 and the through hole 19 of both guide pieces 18. In addition, the screw hole 22 of the main operation piece 20
The bolt 47 shown in FIG. 1 is screwed into the auxiliary operation piece 29 through the through hole 31. With this bolt 47,
The sub operation piece 29 is connected to the main operation piece 20.

A pair of bolts 48 shown in FIG. 1 are inserted into the screw holes 36 of the sub-holding pieces 34 through the communication holes 44 of the auxiliary plate 40.
Is screwed in. A coil spring 49 is provided between the bolts 48, and the coil spring 49 connects the bolts 48. The sub-holding pieces 34 are constantly urged by the coil spring 49 in the directions toward each other. A pair of bolts 50 shown in FIG. 2 are inserted into the screw holes 26 of both the main gripping pieces 24 through the elongated holes 17 of the board 12.
Is screwed in. A coil spring 51 is provided between the bolts 50, and the coil spring 51 connects the bolts 50. The main gripping pieces 24 are constantly urged by the coil springs 51 in the directions toward each other.

As shown in FIG. 1, an air thin lid 52 which is vertically expandable and contractable is provided on the upper front surface of the substrate 12. The lower end of the air thin lid 52 is connected to the heads 21a and 30a of the main operating piece 20 and the sub operating piece 29.

Next, the operation of the hand chuck 11 configured as described above will be described. The attachment portion 13 of the hand chuck 11 is attached to various machines. Then, by driving various machines, the hand chuck 11 is moved so as to be located above the many wire rods stacked and stored. Furthermore, when the hand chuck 11 is moved downward toward the many wires by driving various machines, both main gripping pieces 24 shown in FIGS.
A plurality of wire rods are inserted between the grips 27 of the two and the grips 38 of the sub-holding pieces 34.

In this state, the main operating piece 20 and the sub operating piece 2
As shown in FIG.
It is moved upward as shown in (b). Then, the lower end portions of the hooking pieces 37 of the sub-holding pieces 34 are hooked on the lower end portions of the hooking portions 32 of the sub-operation piece 29. Furthermore,
Operation parts 21c and 30c of the main operation piece 20 and the sub operation piece 29
Is moved upward, and the operation portion 30c of the sub operation piece 29 is moved.
Of the tapered surface 33 of both sub-holding pieces 34
Located corresponding to the bottom edge of. Then, the sub-holding pieces 34 are rotated by the elastic force of the coil spring 49 in the directions approaching each other with the bolt 45 as a fulcrum. as a result,
The plurality of wire rods are gripped by approaching each other until the grip portions 38 of both the sub gripping pieces 34 become a predetermined distance.

When the main operating piece 20 and the sub operating piece 29 are further moved upward due to the contraction of the air cylinder 52 after the holding portion 38 holds a plurality of wires, the sub operating operation is performed as shown in FIG. 6 (a). Both sub-holding pieces 34 hooked on the piece 29 are moved upward. As a result of the movement, the plurality of wire rods gripped by the grip portion 38 are pulled upward, and the taper portion 23 of the operation portion 21c of the main operation piece 20 is changed to the one shown in FIG.
As shown in (b), the main gripping pieces 24 are extracted upward from between the gripping portions 27. The respective wire rods pulled up come into contact with the stopper portions 14b and 41b of the substrate 12 and the auxiliary plate 40, and are held in that position while sliding with respect to the grip portion 38 moving upward. At this time, the wire rods are the two main gripping pieces 24.
It is located corresponding to the holding groove 27a of the grip portion 27 in.

When the taper portion 23 is pulled out upward from between the gripping portions 27, both main gripping pieces 24 are rotated by the elastic force of the coil spring 51 so as to approach each other with the bolt 45 as a fulcrum. . As a result, the gripping portions 27 of the two main gripping pieces 24 come close to each other, and the gripping portions 27 become stopper parts 14b and 41b from among the wire rods gripped between the gripping portions 38 of the sub gripping piece 34. Only one wire held at the contacting position is gripped between the holding grooves 27a provided in both grips 27. Further, other wire rods that are not gripped between the holding grooves 27a of both gripping portions 27 spill from the space between the gripping portions 38 of both sub gripping pieces 34. Therefore, it is possible to hold only one wire between the holding portions 27 of the two main holding pieces 24.

In this embodiment described in detail above, the following (a)
(F). (A) A plurality of wire rods are held from a large number of wire rods stacked and stored by both sub-holding pieces 34, and only one wire rod is held from the plurality of wire rods held by both sub-holding pieces 34. The main gripping piece 24 is used for gripping.
Therefore, even if a large number of wire rods are stored in a stacked state, only one wire rod can be reliably gripped and taken out from each of the wire rods.

(B) Gripping portion 27 of both main gripping pieces 24
Holding grooves 27a having arcs of the same diameter as the wire on opposite surfaces of
Is provided so that only one wire is held between the holding grooves 27a. Therefore, both main gripping pieces 24 can surely grip one wire.

(C) The auxiliary gripping pieces 34 are moved upward so that the plurality of wires gripped by the auxiliary gripping pieces 34 are positioned corresponding to the holding grooves 27a of the main gripping pieces 24. Therefore, the wire gripped by the sub gripping pieces 34 can be reliably gripped by the main gripping pieces 24.

(D) When the plurality of wire rods held by both the sub-holding pieces 34 are positioned corresponding to the holding grooves 27a of both the main holding pieces 24 by the movement of the both sub-holding pieces 34, the wires of the substrate 12 and the auxiliary plate 40 are The stopper portions 14b, 42b are brought into contact with and held in that position. Therefore, the wire rod gripped by the sub gripping pieces 34 can be more surely gripped by the main gripping pieces 24.

(E) Both main gripping pieces 24 and both sub gripping pieces 34
Are constantly urged by the coil springs 51 and 49 in the directions toward each other. Further, the operation portions 21c and 30c of the main operation piece 20 and the auxiliary operation piece 29 are inserted between the grip portions 27 and 38 of the both main grip pieces 24 and the sub grip pieces 34, respectively, and the operation portion 21
Tapered portions 23 and 33 are formed at the lower end portions of c and 30c.
Therefore, by moving the main operation piece 20 and the sub-operation piece 29 in the vertical direction and inserting / removing the operation portions 21c and 30c into and from the grip portions 27 and 38, the both main grip pieces 24 can be reliably held.
Also, the sub-holding pieces 34 can be moved in the directions in which they approach or separate from each other.

(F) Hook portions 32 are formed on both sides in the upper end width direction of the body portion 30b of the sub operation piece 29, and the hook portions 37 provided on the upper end portions of both the sub gripping pieces 34 are inserted into the hook portions 32. did. Then, when the auxiliary gripping pieces 34 grip a plurality of wire rods by the upward movement of the auxiliary operation piece 29, the hooking piece 37 is hooked on the hooking portion 32. Therefore, both sub-holding pieces 3
Since the plurality of wire rods gripped by 4 are pulled upward as the sub-operation piece 29 moves upward, the plurality of wire rods can be easily moved toward the holding grooves 27a of both main gripping pieces 24.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and detailed description is omitted.

As shown in FIG. 7, in the hand chuck 11 of this embodiment, the pair of protrusions 14a provided at the lower end of the substrate 12 is longer than that in the first embodiment. Further, the stopper portion 14b provided between the both protrusions 14a is formed in an inverted V shape. As shown in FIG. 8A, in the sub operation piece 29 of the present embodiment, the vertical length of the operation portion 30c is shorter than that in the first embodiment, and the auxiliary operation piece 29 is located on both sides of the body portion 30b in the width direction. The lower ends of both hook portions 32 are located at the same height.

The auxiliary gripping piece 34 located on the right side of FIG.
The vertical width of the hooking piece 37 is smaller than the vertical width of the hooking piece 37 of the sub-holding piece 34 located on the left side of FIG. 8A. Hook piece 3 located on the right side
The lower end of 7 is located above the lower end of the hooking piece 37 located on the left side. The grip portion 38 of the sub gripping piece 34 located on the left side is the gripping portion 3 of the sub gripping piece 34 located on the right side.
It is longer than 8 in the vertical direction. Left grip 38
Has a lower end located below the lower end of the right grip portion 38, and is provided at the lower end portions of the facing surfaces of both grip portions 38 with an arc-shaped recess 38a having the same diameter as the wire rod and extending in the horizontal direction. Has been. The recess 3 provided in the left grip 38
8a is located below the recess 38a formed in the right grip portion 38.

Then, as shown in FIGS. 10A and 10B, when the main operating piece 20 and the sub operating piece 29 are pulled upward, the auxiliary gripping piece 34 located on the left side of FIG. 10A is hooked. The lower end portion of the piece 37 is adapted to be hooked on the lower end portion of the hook portion 32 of the sub operation piece 29. At this time, the operation portion 30c of the sub operation piece 29 is pulled out upward from between the both grip portions 38, and the operation portion 21c of the main operation piece 20 is held in a state of being located between the both grip portions 27. That is, the vertical length of the operating portion 30c of the sub operating piece 29 is such that when the lower end portion of the left hooking piece 37 is hooked on the lower end portion of the hooking portion 32, the operating portion 30c moves upward from between the operating parts 38. It is set to the value to be extracted.

Then, as shown in FIGS. 11 (a) and 11 (b), when the main operating piece 20 and the sub operating piece 29 are pulled further upward, the sub holding piece 34 located on the left side of FIG. 11 (a) is removed. The lower end portion of the hooking piece 37 of the auxiliary gripping piece 34 located on the right side of FIG.
Is hooked on the lower end of the hook portion 32. At this time, the depressions 38a provided in both the grips 38 of the sub-grasping piece 34 are positioned so as to correspond to each other at the same height, and the operation part 21c of the main operation piece 20 is positioned between the grips 27. Held in. That is, the vertical width of the hooking piece 37 located on the right side is such that when the lower end portion of the right hooking piece 37 is hooked on the lower end portion of the hooking portion 32, the depressions 38 of both gripping portions 38 are formed.
It is set to a value in which a corresponds to each other.

Thereafter, as shown in FIGS. 12 (a) and 12 (b), when the main operating piece 20 and the sub operating piece 29 are pulled further upward, both of the auxiliary gripping pieces 34 are moved upward and the main operating piece is moved. The operation portion 21c of the piece 20 is adapted to be pulled out upward between the grip portions 27 of the two main grip pieces 24. At this time, the depressions 38 a provided in both the gripping portions 38 of the sub gripping pieces 34 are located at the same height as the holding grooves 27 a provided in the gripping portions 27 of the both main gripping pieces 24. That is, the main operation piece 2
The vertical length of the operating portion 21c at 0 is
When c is extracted upward from between both grips 27, the depression 38a is set to a value that is located at the same height as the holding groove 27a.

Next, the operation of the hand chuck 11 constructed as above will be described. In the state in which a plurality of wire rods are inserted between the grip portions 27 of both the main grip pieces 24 and between the grip portions 38 of both the sub grip pieces 34 shown in FIGS. The operation piece 29 is moved upward as shown in FIGS. 9 (a) and 9 (b). Then, when the taper portion 33 of the operation portion 30c of the sub operation piece 29 is positioned corresponding to the lower end of the tapered surface 39 of both the sub gripping pieces 34, both sub gripping pieces 34 approach each other and the lower end of the taper surface 39 is operated. It abuts the tapered portion 33 of the portion 30c. Main operation piece 20 and sub operation piece 2
When 9 is moved further upward as shown in FIGS. 10A and 10B, the sub-holding piece 34 located on the left side of FIG.
The lower end portion of the hooking piece 37 of is hooked on the lower end portion of the hooking portion 32 of the sub-operation piece 29.

At this time, the operating portion 30c of the sub operating piece 29 is pulled out upward between the two holding portions 38, and the both sub holding pieces 34 are pulled out.
A plurality of wire rods shown by a chain double-dashed line in FIG. 13 are located between the grips 38. Each wire may be parallel to the direction in which the two grips 38 approach or separate, and any one of the wires is shallowly inserted into the recess 38a of the grip 38 located on the right side. It Then, as shown in FIG.
By further moving the main operation piece 20 and the sub-operation piece 29 shown in (b) upward, the sub-holding piece 34 located on the left side of FIG. 11 (a) is moved upward, and the sub-holding piece 34 of FIG. 11 (a) is moved. The lower end of the hooking piece 37 of the auxiliary gripping piece 34 located on the right side is hooked on the lower end of the hooking portion 32 of the auxiliary operation piece 29.

Then, the grip portion 3 located on the left side of FIG.
8 is relatively moved upward so as to pass the grip portion 38 located on the right side. As a result, the wire rods between the grips 38 roll, and as shown in FIG. 14, the wire rods are arranged in parallel to the direction in which the grips 38 relatively move. Then, the depressions 38a provided in both grips 38
When they are positioned corresponding to each other, one wire is reliably held between the recesses 38a.

Thereafter, as shown in FIGS. 12 (a) and 12 (b), when the main operating piece 20 and the sub operating piece 29 are moved further upward, both auxiliary gripping pieces 34 hooked on the sub operating piece 29 are removed. Moved up. By the movement of both of the sub-holding pieces 34,
Each wire rod held between the two holding portions 38 is pulled upward. Among the wire rods pulled upward, the wire rod located at the uppermost side contacts the substrate 12 and the stopper portions 14b and 41b of the auxiliary plate 40 shown in FIG. Then, the wire rod located on the uppermost side has the two main gripping pieces 24 shown in FIG.
It is located corresponding to the holding groove 27a provided in the grip 27.

When both gripping pieces 34 are moved further upward, the uppermost wire is held at the position in contact with the stopper portions 14b and 41b. The uppermost wire rod pushes each wire rod located below the wire rod downward, and drops each wire rod from between the grip portions 38. As a result, one wire rod located at the uppermost position in FIG. 14 is reliably held between both grip portions 38, and the wire rod is positioned between the recesses 38a as shown in FIG. In this state, the taper portion 23 of the operation portion 21c of the main operation piece 20
Are extracted upward from between the gripping portions 27 of the two main gripping pieces 24. Then, the gripping portions 27 of both gripping pieces 24 securely grip one wire rod that is located between the recesses 38a and close to each other between the holding grooves 27a.

In addition to the effects of the first embodiment, this embodiment described in detail above has the following effects (g) to (j). (G) While holding a plurality of wire rods between the two holding portions 38,
By relatively moving the grip 38 located on the left side of FIG. 13 upward with respect to the grip 38 located on the right side,
Each wire is arranged in parallel with respect to the relative movement direction of both grips 38. Therefore, it is possible to easily grip a desired number (in this embodiment, one wire) of the wire rods held between the gripping portions 38 between the gripping portions 27 of the both main gripping pieces 24.

(H) A recess 38a is provided in both grips 38,
One wire is held only between the recesses 38a. Therefore, the same number (one) of wire rods as the number of the depressions 38a provided in the sub-holding pieces 34 can be reliably held between the holding portions 38 of both the sub-holding pieces 34.

(I) With respect to both of the sub-holding pieces 34, after the sub-holding piece 34 located on the left side of FIG. 8A is hooked on the sub-operation piece 29, the right-hand side sub-holding piece 34 is hooked on the sub-operation piece 29. Therefore, the relative movement of both grips 38 can be easily performed.

(J) Both hook portions 32 of the sub-operation piece 29
The lower end of each hook is positioned at the same height, and the widths of both hooking pieces 37 of both sub-holding pieces 34 in the vertical direction are set to different values. Therefore, when the sub operation piece 29 is moved upward, after the hook piece 37 located on the left side of FIG. 8A is caught by the hook portion 32 of the sub operation piece 29, the right hook piece 37 is operated by the sub operation. The hooking portion 32 of the piece 29 can be reliably hooked.

The present invention can be embodied with the following modifications. (1) In each of the above-described embodiments, the grip portion 2 of the two main grip pieces 24 is used.
Although the holding groove 27a is provided in the groove 7, the holding groove 27a may be omitted if the holding portion 27 is formed between the holding portions 27 so as to hold one wire. Also in this case, the same effect as that of each of the above-described embodiments can be obtained.

(2) In each of the above-described embodiments, the holding portion 27 is provided with the arcuate holding groove 27a. However, if one wire can be held between the holding portions 27 of both main holding pieces 24, the holding portion 27 can be held. The shape of the groove 27a may be changed as appropriate. For example, the holding groove 27 a formed in a square shape may be provided in the grip portion 27 as a recess.
In addition, the holding groove 27a is formed in the grip portion 27 of the two main grip pieces 24.
Instead of providing each of them, it may be provided only on one gripping portion 27. Even with such a configuration, the same effect as that of each of the above-described embodiments can be obtained.

(3) In each of the above embodiments, the holding groove 2
You may change suitably the diameter of 7a according to the diameter of a wire. In this case, even if the diameter of the wire changes, it is possible to hold one wire between the grips 27 of the main gripping pieces 24.

(4) In the first embodiment, both main gripping pieces 24
Although one holding groove 27a is provided in each of the gripping portions 27, a plurality of holding grooves 27a that are parallel to the vertical direction may be provided in the facing surfaces of the gripping portions 27. In this case, the wire rod can be reliably held between the holding portions 27 by the number of the holding grooves 27a provided. Further, in the second embodiment, if the number of the depressions 38a is increased so that a plurality of wire rods are gripped between the gripping portions 38 of both the sub-gripping pieces 34, the gripping portion of the main gripping piece 24 of the second embodiment. 27 may be provided with a plurality of holding grooves 27a as in the above.

(5) In each of the above embodiments, the sub operation piece 29 is used.
By moving both sub-holding pieces 34 upward,
Although the wire rods gripped by both the sub gripping pieces 34 are positioned corresponding to the holding grooves 27a of the both main gripping pieces 24, the present invention is not limited to this. That is, the hand chuck 11 may be configured to move both the sub gripping pieces 34 upward, separately from the upward movement of the sub operation piece 29. Also in this case, the same effect as that of each of the above-described embodiments can be obtained.

(6) In the above embodiments, both main gripping pieces 2
4 and the coil springs 51 and 49 are provided to urge the sub-holding pieces 34 and the sub-holding pieces 34 toward each other. Instead, the main holding pieces 24 and the sub-holding pieces 34 are brought closer to each other by a rubber ring or the like. You may urge in the direction to do. Also in this case, the same effect as that of each of the above-described embodiments can be obtained.

(7) In each of the above embodiments, both the main gripping pieces 24 and the both sub gripping pieces 34 are urged in the directions toward each other.
The grips 27, 38 are moved toward and away from each other by inserting and removing the operating parts 21c, 30c of the main operation piece 20 and the sub-operation piece 29 between the grips 27, 38 of the present invention, but the present invention is not limited to this. Not done. For example, a cylinder capable of contracting in the direction in which the grips 27, 38 approach or separate may be connected to the grips 27, 38 and the grips 27, 38 may approach or separate by contraction of the cylinder. Also in this case, the same effect as that of each of the above-described embodiments can be obtained.

(8) In the second embodiment, FIG.
As shown in (c), the vertical widths of the hooking pieces 37 of both the auxiliary gripping pieces 34 are set to the same value so that the lower ends of the two hooking portions 32 of the sub-operation piece 29 are located at different positions with respect to the vertical direction. May be. Also in this case, it is possible to reliably cause the one hooking piece 37 to be hooked on the hooking portion 32 of the sub operation piece 29 and then the other hooking piece 37 to be hooked to the hooking portion 32 of the sub operation piece 29.

(9) In the second embodiment, the grip portion 38
The recess 38a may be omitted if the grip portion 38 is formed so that one wire can be gripped therebetween. Also in this case, the same effect as that of each of the above-described embodiments can be obtained.

(10) In the second embodiment, the arc-shaped recess 38a is provided in the grip 38, but if one wire can be gripped between the grips 38 of both sub-gripping pieces 34, the recess 38 will be formed.
You may change the shape of a suitably. For example, a dent 38 a formed in a square shape may be provided in the grip 38. Further, the depressions 38a may be provided only in one of the gripping portions 38 instead of being provided in the gripping portions 38 of both the sub gripping pieces 34, respectively.

(11) In the second embodiment, the depression 38
You may change suitably the diameter of a according to the diameter of a wire. In this case, even if the diameter of the wire changes, the gripping portions 3 of the auxiliary gripping pieces 34
It is possible to hold one wire rod between the eight.

Next, technical ideas other than the claims that can be understood from the above embodiment will be described below together with their effects. (A) In the hand chuck according to any one of claims 3 to 5, the first and second gripping members are arranged in parallel in a direction orthogonal to a direction in which the gripping members approach or separate from each other, and A hand chuck provided with a stopper portion that contacts a wire rod that is gripped by the gripping member and is moved toward the holding portion of the second gripping member to hold the wire rod at a position corresponding to the holding portion. In this case, the wire rod gripped by the first grip member can be more reliably gripped by the second grip member.

(B) In the hand chuck described in (a) above, the first biasing member (coil spring 49) that biases the pair of first gripping members in the direction of approaching each other.
And a second biasing member (coil spring 51) that biases the pair of second gripping members toward each other, and between the first gripping member and the second gripping member. A hand chuck in which an operating member (20, 29) is provided so as to be able to move forward and backward, and the operating member is provided with a taper portion that is in contact with the first and second gripping members and is inclined with respect to the moving direction of the operating member. In this case, the first and second gripping members can be surely moved in the approaching or separating directions.

(C) In the hand chuck described in (B) above, the operating member has a locking portion (hooking portion) with which the first gripping member is locked when the first gripping member grips the wire. 32) is provided, and the operating member is advanced and retracted in a state where the first gripping member is locked to the locking portion, so that the wire rod gripped by the first gripping member holds the wire between the second gripping members. A hand chuck that moves toward. In this case, the wire material gripped by the first gripping member can be easily moved toward the holding portion of the second gripping member.

(D) In the hand chuck described in (c) above, a pair of locking portions are provided corresponding to both first gripping members, and both locking portions are provided when one of the operating members is moved back and forth. A hand chuck in which one of the first gripping members is locked to the locking portion, and then the other first gripping portion is locked to the other locking portion. In this case, both first gripping members can easily be relatively moved in a direction in which they pass each other.

(E) In the hand chuck described in (d) above, both locking portions are provided at the same position in the advancing / retracting direction of the operating member, and both the first gripping members are provided with respect to the locking portions. A hand chuck in which locking pieces to be locked are respectively provided and the widths of the operating members in the locking pieces in the advancing and retracting directions are different. In this case, after one locking piece is locked to the one locking portion, the other locking piece can be reliably locked to the other locking portion.

(F) In the hand chuck described in (d) above, both locking portions are provided at different positions with respect to the advancing / retracting direction of the operating member, and both first gripping members are provided with respect to the locking portions. A hand chuck in which locking pieces to be locked are provided, and the widths of the operating members in both the locking pieces in the advancing / retracting direction are the same value. In this case, after one locking piece is locked to the one locking portion, the other locking piece can be reliably locked to the other locking portion.

[0071]

According to the first aspect of the present invention, the plurality of wire rods are held by both the first holding members, and only the desired number of the wire rods are held by each of the second holding members. did. Therefore, a desired number of wire rods can be gripped and taken out from the many wire rods stacked and stored.

According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the holding portions are provided on the surfaces of the second gripping members facing each other, and the wire rod is gripped between the holding portions. The desired number of wires can be reliably held by the second holding member.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the plurality of wire rods gripped by the first gripping members are moved to the second wire by the movement of the first gripping members.
Corresponding to the positions between the holding portions of the gripping member. Therefore, the wire gripped by the first gripping member can be securely
Can be held by the holding member.

According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, each wire rod gripped between both first gripping members is Since the wires are arranged in parallel with respect to the direction of relative movement, it becomes easy for the second grip portion to grip a desired number of wires.

According to the invention of claim 5, in addition to the effect of the invention of claim 4, one wire is surely gripped between the recesses formed in the first gripping members. Become. Therefore, between the both first gripping members, the same number of wire rods as the number of recesses provided in the both first gripping members can be reliably gripped.

[Brief description of drawings]

FIG. 1 is a front view showing a hand chuck according to a first embodiment.

FIG. 2 is a rear view showing a hand chuck.

FIG. 3 is an exploded perspective view showing a hand chuck.

FIG. 4A is a front view showing a sub-operation piece and a sub-grasping piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 5A is a front view showing a sub-operation piece and a sub-grasping piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 6A is a front view showing a sub-operation piece and a sub-grasping piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 7 is a cutaway exploded perspective view showing a hand chuck according to a second embodiment.

FIG. 8A is a front view showing a sub-operation piece and a sub-grasping piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 9A is a front view showing a sub-operation piece and a sub-grasping piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 10A is a front view showing a sub-operation piece and a sub-grasping piece. (B) is a front view showing a main operation piece and a main gripping piece.

FIG. 11A is a front view showing a sub-operation piece and a sub-grasping piece. (B) is a front view showing a main operation piece and a main gripping piece.

FIG. 12A is a front view showing a sub-operation piece and a sub-grasping piece. (B) is a front view showing a main operation piece and a main gripping piece.
FIG. 6C is a front view showing a sub-operation piece and a sub-grasping piece of another example.

FIG. 13 is an enlarged front view showing the grip portion of the auxiliary grip piece.

FIG. 14 is an enlarged front view showing a grip portion of a sub-gripping piece.

FIG. 15 is an enlarged front view showing the grip portion of the auxiliary grip piece.

[Explanation of symbols]

11 ... Hand chuck, 24 ... Main gripping piece as second gripping member, 27a ... Holding groove as holding section, 34 ... First
A sub-holding piece as a holding member, 38a ...

Claims (5)

[Claims] 1. A hand chuck in which a pair of gripping members (24, 34) are provided so as to be movable toward and away from each other, and the gripping members (24, 34) are brought close to each other to grip a wire rod. , A pair of first gripping members (34) capable of gripping a plurality of wires
And a pair of second gripping members (24) for gripping a desired number of wire rods out of the plurality of wire rods gripped by the first gripping member (34). 2. The pair of first gripping members (34) are capable of approaching each other up to a predetermined distance, and the pair of second gripping members (34)
The hand chuck according to claim 1, wherein a predetermined number of holding portions (27a) capable of holding one wire are provided on the surfaces of the holding member (24) facing each other. 3. The pair of first gripping members (34) are
The wire rod gripped by the first gripping member (34) holds the wire (2) between the pair of second gripping members (24).
7. The hand chuck according to claim 2, wherein the hand chuck is movably provided so as to correspond to 7a). 4. The pair of first gripping members (34) comprises:
The device is provided so as to be relatively movable in a passing direction.
The hand chuck according to any one of 3 to 3. 5. A predetermined number of recesses (38a) for holding one wire member are provided on opposing surfaces of the pair of first gripping members (34), and both the first gripping members (34). 5. The hand chuck according to claim 4, wherein the relative movement is such that the depressions (38a) provided on both of them are located correspondingly.