JP2003326433A - Jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jig capable of concurrently holding a plurality of elongated workpieces and achieving high machining accuracy. <P>SOLUTION: The jig is characterized by that it is provided with a first holding part 14 holding one ends of the plurality of workpieces 12, a second holding part 16 holding another ends of the plurality of workpieces, and a connecting part 18 connecting the second holding part to the first holding part at a position separated a predetermined distance from the first holding part. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig, and more particularly to a jig used for cutting an elongated member such as a connector pin.

[0002]

2. Description of the Related Art When a slender member such as a pin is cut by a spindle, a slender working material is worked from a plurality of directions. Therefore, the machining setup is repeated every time machining is performed from each direction.

For example, a pin used for a waterproof type connector has a round base and a square tip, and the tip has a curved surface that requires NC processing. For this reason, four-sided machining is required at the tip, and machining setup in four steps is performed. Since the pins were machined one by one, the four-step machining setup was repeated 10 or 12 times for the 10-pole and 12-pole waterproof connectors.

[0004]

In order to avoid such repetition, a jig for holding a plurality of elongated materials at the same time has been proposed. This jig includes a first portion on the body member side and a second portion that is configured to be removable from the first portion, and has a plurality of elongated processing materials, for example, one end (base end) of a round pin. The part is sandwiched between the first part and the second part to hold the processing material, and is processed by a spindle or the like.

However, such a jig has a problem that the processing accuracy is not sufficient especially on the tip side of the processing material.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a jig capable of simultaneously holding a plurality of elongated processing materials and achieving high processing accuracy.

[0007]

According to the present invention, a first holding portion holds one end of a plurality of processing materials, a second holding portion holds another end of the plurality of processing materials, and the first holding portion. A jig is provided that includes a connecting portion that connects the second holding portion to the first holding portion at a position separated from the holding portion by a predetermined distance.

According to the present invention having such a structure,
Since each processing material is fixed in a two-sided holding state in which both ends are held, the tip of the processing material is prevented from being displaced from a predetermined position by a cutting tool or the like during processing. Therefore, high processing accuracy can be achieved.

According to a preferred aspect of the present invention, the processing material is a round pin having a D-cut surface formed at one end,
The first holding portion includes a main body member and a holding member that is detachably assembled to the main body member and holds one end of the processing material between the main body member and fixes the one end of the processing member. The sandwiching member includes a D-cut receiving flat surface that abuts the D-cut surface of the processing material when assembled to the main body member.

According to this structure, since the D-cut receiving surface is formed on the sandwiching member, by exchanging only the sandwiching member, it is possible to machine a processing material having different positions, dimensions, etc. of the D-cut surface. it can. That is, the main body member can be given versatility.

According to another preferred aspect of the present invention, the processing material is a round pin, and the first holding portion is assembled with a main body member in a detachable manner with respect to the main body member, and the main body member and the A V-shaped member, comprising: a holding member that holds one end of the processing material and fixes one end of the processing member, the holding member abutting one end of the processing material and holding one end of the processing material together with the main body member. A groove is formed.

According to this structure, the V-shaped groove formed in the holding member is used to hold the processed portion, so that the processing materials having different diameters can be fixed by the same holding member. In addition, even if the V-shaped groove is provided on the body member side as well,
A configuration in which the groove is provided only on the main body member side may be adopted.

According to a preferred configuration of the present invention, the second
The holding portion includes a hole that holds the other end of the processing material by inserting the other end of the processing material.
With such a configuration, the second holding portion that holds the other end of the processing material can be manufactured by simple processing.

According to a preferred configuration of the present invention, the connecting portion is attached to the main body member. With such a configuration, the shape of the holding member, which may have to be changed in size and shape depending on the processing material, is simplified, and the manufacturing cost is reduced.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will now be described in detail with reference to the drawings. First, the configuration of the jig according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic perspective view showing a configuration of a jig 10 according to an embodiment of the present invention.

As shown in FIG. 1, the jig 10 is
The first holding portion 14 that holds one end of the plurality of processing materials 12 at the same time, the second holding portion 16 that holds the other ends of the plurality of processing materials 12 at the same time, and the position that is separated from the first holding portion 14 by a predetermined distance. The second holding portion 16 and the first holding portion 14 are connected to each other.

The first holding portion 14 is assembled to the main body member 20 and the main body member 20 in a detachable manner.
And a sandwiching member 22 that sandwiches one end of the processing material 12 and fixes one end of the processing member 12 therebetween.

As shown in FIG. 2, the body member 20.
Is a substantially U-shaped base 21, a rectangular parallelepiped downward projection 24 that projects downward from the center of the base 21, and a support for supporting a processing material that extends upward in the central space of the base 21. And a section 26. At four corners of the base portion 21, there are formed pin holes 28 into which one ends of the connecting pins forming the connecting portion 18 are detachably inserted. Further, the downward protrusion 24 is configured to be connectable to the mounting portion 30 of the processing system, and by this connection, the jig 10 is connected to the processing system. In this embodiment, the mounting portion 30 of the processing system can be freely changed in position and direction. The supporting portion 26 has a substantially triangular prism shape, and three supporting grooves 32 for supporting the processing material extending in the longitudinal direction are formed on the surface corresponding to the oblique side thereof. Support groove 32
Is cut out so that it does not come into contact with the collar portion of the processed material.

As shown in FIG. 3, the sandwiching member 22
Has a substantially triangular prism shape. The holding member 22 is
The support member 26 of the main body member 20 is combined with the support member 26 to form a rectangular parallelepiped shape (see FIG. 1), and three supporting grooves 34 for supporting the processing material extending in the longitudinal direction are formed on the surface corresponding to the oblique side thereof. Has been formed.

The support groove 34 of the holding member 22 and the main body member 20.
When the holding member 22 is combined with the main body member 20, the support groove 32 of the main body member 20 is arranged so that the support groove 34 of the holding member 22 and the support groove 32 of the main body member 20 face each other.
Is formed so as to form a cylindrical support space for sandwiching.

When the machining material 12 is clamped below the supporting groove 34 of the clamping member 22, the machining material 12 is contacted with a D-cut surface formed on the side surface of one end (lower end) of the machining material 12 to cure the machining material 12. A D-cut receiving flat surface 36 is formed to prevent rotation with respect to the tool 10.

As shown in FIG. 4, the second holding portion 1
Reference numeral 6 denotes a thin, substantially rectangular parallelepiped shape, and pin holes 38 into which the other ends of the connecting portions 18 are detachably inserted are formed at four corners. Further, the processing material 1 is provided substantially in the center of the second holding portion 16.
Three support holes 40 are formed into which the tip ends of the two are inserted. The size of the support hole 40 is appropriately selected so that the tip of the processing material 12 can be accommodated and fixed.

The length of the connecting pin forming the connecting portion 18 is
When one end of the processing material 12 is supported by the first holding portion 14, the other end of the processing material 12 is in the support hole 40 of the second holding portion 16 so that the processing material 12 does not shift from a predetermined position during cutting. Is set so that it can be held.

Each component such as the first holding portion 14 and the second holding portion 16 is preferably made of an alloy of HRC40 such as NAK55, and the connecting portion (connecting pin) 18 is SKH5.
It is preferably composed of an alloy having an HRS of about 50.

Next, a method of using the jig 10 will be described, taking as an example the case where a round pin which is the processing material 12 is cut into a connector pin. First, the main body member 20 of the first holding unit 14 is fixed to the mounting unit 30 of the processing system. The main body member 20 has a set screw 31a, which is formed with a hexagon wrench or the like, in through holes 30a and 30b formed at one end side of the upper end of the mounting portion 30.
It is fixed to the mounting portion 30 by screwing in 31b and pressing the downward protruding portion 24 of the main body member 20 to the other end side of the upper end portion of the mounting portion 30 by the tips of the setscrews 31a and 31b.

Then, one end portion of the processing material 12 is placed in each of the support grooves 32 of the main body member 20 of the first holding portion 14 (FIG. 5).

In this embodiment, the processing material 12 is NAK.
80, SKD61 and other alloys with a diameter of 2.6 mm to 3.
NAK80 of about 0 mm and length of 50 to 50 mm,
A round pin such as SKD61 is used, but the present invention is not limited to such a processing material.

A D-cut surface is formed on the one end member of the processing material by notching the side surface. In the present embodiment, the processing material 12 is arranged in the support groove 32 so that the D-cut surface faces the direction opposite to the support groove 32.
Then, each pin hole 28 of the main body member 20 of the first holding portion 14
Insert one end of the connecting pin (connecting portion) 18 into the connecting pin 1
8 is fixed to the first holding portion 14 (FIG. 5).

Further, the holding member 22 is combined with the main body member 20 so that the surface of the holding member 22 provided with the support groove 34 contacts the surface of the main body member 20 provided with the support groove 34.
One end of each processing material 12 is provided with a main body member 20 and a holding member 22.
It is sandwiched between and (Fig. 6).

The holding member 22 is pressed against the support portion 26 by the tip of a set screw 31c screwed into a through hole 30c formed at the upper end of the attachment portion 30 on one end side, so that the holding member 22 is attached to the attachment portion 30 and the main body member 20. Fixed.

At this time, one end of each processing material 12 is sandwiched and held in a cylindrical space formed by the support groove 34 of the sandwiching member 22 and the support groove 34 of the supporting portion 26 of the main body member 20, respectively. It will be. As described above, the processing material 12 is arranged in the support groove 32 so that the D-cut surface faces the direction opposite to the support groove 32. Therefore, the D-cut surface of the processing material 12 supports the holding groove of the holding member 22. It comes into contact with the D-cut receiving flat surface 36 arranged below 34.

Next, as shown in FIG. 7, the second holding portion 16 is attached to the tip of the connecting pin 18. At this time,
The tip of the processing material 12 is inserted into the support hole 40 formed in the second holding portion 16, and both ends are fixed by the jig 10. In this state, the spindle S performs a cutting process on each processing material 12 fixed to the jig 10 (FIG. 8). When the processing is completed, the processing material 12 is removed from the jig 10. Since the tip of the processing material 12 is inserted into the support hole 40 of the second holding portion 16 and cannot be processed, this portion is cut.

The present invention is not limited to the above-described embodiments, but various changes and modifications can be made within the scope of the matters described in the claims.

In the above embodiment, the support groove 34 formed in the holding member 22 is a trough-shaped groove having a semicircular cross-sectional shape, but it may be a groove having a V-shaped cross-sectional shape. With this configuration, it is possible to hold processing materials (round pins) having different diameters. The support groove 32 of the main body member 20 may also be a V-shaped groove. Further, the main body member 2
It is also possible to form the V-shaped groove only in 0 or the holding member 22.

[0035]

According to the present invention, there is provided a jig capable of simultaneously holding a plurality of elongated processing materials and achieving high processing accuracy.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a configuration of a jig according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a main body member that constitutes a first holding portion.

FIG. 3 is a schematic perspective view of a holding member that constitutes a first holding unit.

FIG. 4 is a schematic perspective view of a second holding unit.

FIG. 5 is a schematic perspective view for explaining a step of attaching a processing material to the jig according to the embodiment of the present invention.

FIG. 6 is a schematic perspective view for explaining a step of attaching a processing material to the jig according to the embodiment of the present invention.

FIG. 7 is a schematic perspective view showing a state in which a processing material is attached to the jig according to the embodiment of the present invention.

FIG. 8 is a schematic perspective view showing a state where the processing material attached to the jig according to the embodiment of the present invention is being processed.

[Explanation of symbols]

10: jig 12: Processing material 14: First holding unit 16: Second holding unit 18: Connection pin 20: Body member 22: Holding member

Claims (5)

[Claims] 1. A first holding part for holding one end of a plurality of processing materials, a second holding part for holding the other end of the plurality of processing materials, and a position separated from the first holding part by a predetermined distance. And a connecting part that connects the second holding part to the first holding part. 2. The processing material is a round pin having a D-cut surface formed at one end, and the first holding portion is a main body member and a main body member detachably assembled with the main body member. And a clamping member that clamps one end of the machining material and fixes one end of the machining member, and the clamping member abuts the D-cut surface of the machining material when assembled to the main body member. The jig according to claim 1, comprising a D-cut receiving plane. 3. The processing material is a round pin, the first holding portion is assembled with a main body member so as to be attachable to and detachable from the main body member, and one end of the processing material is held together with the main body member. A clamping member for fixing one end of the machining member, wherein the clamping member is formed with a V-shaped groove that abuts one end of the machining material and clamps one end of the machining material together with the main body member. The jig according to claim 1 or 2, which is characterized. 4. The second holding portion is provided with a hole for holding the other end of the processing material by inserting the other end of the processing material therein. The jig described in the item. 5. The jig according to claim 2, wherein the connecting portion is attached to the main body member.