JP4238092B2 - Covered wire tip position fixing device - Google Patents

Description

  The present invention relates to an electric component processing technique, and more particularly, to an apparatus for positioning and fixing a tip portion of a covered electric wire prior to various processing operations on the covered electric wire.

The operation of fixing the crimp terminal fitting to the core wire portion of the covered electric wire, in which the periphery of the core wire is covered with an insulating coating, is widely performed on a daily basis during the manufacture and assembly of various electric devices. This operation is performed according to a procedure in which the covering portion at the tip end portion of the covered electric wire is peeled off by an appropriate length, the core wire of the portion is exposed, and a crimp terminal fitting is attached thereto. In order to perform this operation, it is necessary to position and fix the vicinity of the tip of the covered electric wire by some means.
JP-A-63-287312. I can't find it.

  The covered electric wire fixing means disclosed in Patent Document 1 is intended for a single covered electric wire, and it is completely assumed that a crimp terminal fitting is simultaneously attached to each end of a plurality of covered electric wires in a bundle. There wasn't.

  Further, the covered electric wire fixing means disclosed in Patent Document 1 has a structure in which the covered electric wires are sandwiched from both sides. With this structure, if a plurality of covered electric wires are to be fixed, the holding member is moved in the left-right direction. A number of arrangements have to be made, an excessive space is required in the left-right direction, and the entire apparatus has to be extremely unbalanced.

  In particular, in recent years, in the field of electrical parts for automobiles, a bundle of 6 to 10 covered electric wires is often used. When trying to fix a crimp terminal fitting to these, The above-mentioned conventional method of sandwiching with a sandwiching member cannot sufficiently cope.

  As a result of diligent research to solve the above problems when fixing crimp terminal fittings to a plurality of covered electric wires, the present inventor replaced the conventional fixing method of sandwiching from the left and right with the covered electric wires in the positioning grooves. We succeeded in developing a new coated wire tip positioning and fixing device that can align and fix a plurality of coated wires at narrower intervals by using a completely new method.

  Since a plurality of covered electric wires can be aligned and fixed at narrower intervals, the entire apparatus can be made compact. In addition, since there are few moving parts and the movement is simple vertical movement, the mechanism for driving can be installed at the vertical position of the main body, the installation area is small, adjustment is easy, and durability It can be manufactured at low cost with little risk of failure.

Covered wires (4) covered electric wire insertion groove having a substantially rectangular having a slightly larger transverse width and depth than the outside diameter of the cover portion (14) is formed on the upper surface (3) in plural rows parallel across the longitudinal direction, the frame A metal lower block material (1) supported by the body (22), and an elevating mechanism having a flat lower surface (16) which is provided with an elevating mechanism and is in close contact with the upper surface (3) of the lower block material (1). It becomes because the upper block member (2) capable, respectively vertical holes (5) are formed directly below the wire insertion groove of the lower block member (1) (14), in the transparent hole (5) Weak pressure so that the arc-shaped portion (18) of the covered wire pressing rod (6) having an arc-shaped portion (18) whose upper end bulges in a curved shape is slightly exposed in the wire insertion groove (14) . Is positioned while being urged upward by the Weak coil spring at the bottom (6) (7) further into the lower portion of the weak coil spring (7), forms a recess (10) bottomed cylindrical shape which is formed along the axis, the flange on the upper edge A locking piece (8) is formed , and a connector (9) in which the lower part of the weak coil spring (7) is inserted into the recess (10 ), and a horizontally long rectangular parallelepiped shape, the frame (22 ) And both ends are supported and held at a predetermined position with respect to the lower block material (1), and through-holes for connecting connectors (21) are formed in a line at equal intervals. A connector holding block (17) for holding the connector (9) by placing the collar-like locking piece (8) of the connector (9) on the upper edge of the connector holding through hole (21 ). , together with the attached coaxially, each strong coil spring (11) through a strong Koiruba A coil spring pressing block material in the lower part provided with a lifting mechanism (11) (12) has been brought position, by raising the coil spring pressing block member (12), by the force of the strong spring (11) The covered wire tip position fixing device was configured such that the covered wire pressing rod (6) was urged upward.

  The embodiment will be described above with reference to FIGS. 1 to 8. FIG. 5 is a side longitudinal cross-sectional view of an embodiment of the covered wire tip end position fixing device according to the present invention, and FIG. 3 is a perspective view showing the positional relationship between the lower block material 1 and the upper block material 2 which are the main parts. FIG. 1 is a longitudinal sectional view taken along line AA in FIG.

  In the figure, 1 is a metal lower block material, and 2 is a metal upper block material. The lower block material 1 has a horizontally long rectangular parallelepiped shape, and a covered wire insertion groove 14 having a substantially square cross section having a width and depth slightly larger than the outer diameter A of the covered wire is formed on the upper surface 3 thereof in the front-rear direction. Multiple lines are formed in parallel.

  Further, through holes 5 are respectively formed directly below the covered wire insertion grooves 14 of the lower block material 1, and the covered wire pressing rod 6 is positioned in the through holes 5 so as to be movable up and down. . The tip of this covered wire pressing rod 6 bulges in a curved shape as shown in FIG. The arc-shaped portion 18 is formed in order to follow the strong pressing force of the coil spring 11 in accordance with the change in the outer diameter of the covered electric wire 4. The pressing force close to the preset pressing force can be held.

  An upper portion of a weak coil spring 7 for pushing up the covered wire pressing rod 6 is coaxially fixed to a lower portion of the covered wire pressing rod 6. The lower portion of the weak coil spring 7 is a bottomed cylinder. It has a shape and is inserted into a recess 10 of a connector 9 having a collar-like locking piece 8 formed on the upper edge. In addition, the connector 9 is formed by placing the collar-like locking piece 8 on the upper edge of the connector holding through hole 21 of the horizontally long rectangular parallelepiped connector holding block 17. 17 is held.

  Further, the upper end of the strong coil spring 11 is coaxially abutted on the lower surface of the connector 9, and the lower end of the strong coil spring 11 is inserted into the coil spring accommodating recess 13 provided on the upper surface of the coil spring pressing block member 12. Has been. The coil spring pressing block member 12 is a member having a horizontally long rectangular parallelepiped shape, and is positioned below the connector holding block 17 and is slid in the vertical direction by a lifting means (not shown). Further, as shown in FIGS. 5 and 6, the upper side of the upper surface 3 of the lower block member 2 opens in a tapered shape and has a V-shaped covered wire guide cutout portion 15 whose lower end communicates with the covered wire insertion groove 14. Are provided. In FIG. 1, reference numeral 23 denotes a spring material that biases the coil spring pressing block material 12 downward.

  On the other hand, the upper block member 2 is a metal member having a horizontally long rectangular parallelepiped shape, and has a smooth lower surface 16 that comes into close contact with the upper surface 3 of the lower block member 2. 2 positions, a lowered position joined with 2 and a raised position separated from the lower block material 2, can be arbitrarily selected.

  In the figure, reference numeral 22 denotes a frame for holding the lower block material 1 and the connector holding block 17.

  Next, the operation of this embodiment will be described. First, as shown in FIGS. 1, 3, and 5, the upper block member 2 is joined to the lower block member 1, and the upper end opening portion of the covered wire insertion portion 14 is closed with the lower surface 16 of the upper block member 2. At the same time, the coil spring pressing block member 12 is lowered, and the covered wire pressing rod 6 is lowered. In this state, the brim-shaped locking piece 8 of the connector 9 is locked to the upper surface of the connector holding block 17, and only the weak spring 11 presses the covered wire pressing rod 6 upward, thereby The wire pressing rod 6 is weakly biased upward.

  In this state, the operator inserts the tip of the covered electric wire 4 into the covered electric wire insertion groove 14 through the V-shaped covered electric wire guide notch 15 by picking the covered electric wire 4 with a finger. The tip of the covered wire pressing rod 6 is slightly exposed at the bottom of the covered wire insertion groove 14, and a slope portion 18 formed of a loose slope is formed at the tip portion. Since it is biased upward, the tip of the inserted covered wire 4 advances through the covered wire insertion groove 14 while pushing down the slope of the arcuate portion 18, penetrates through it as shown in FIG. It will penetrate. In this state, the covered electric wire 4 is temporarily positioned by the pressing force of the weak coil spring 7.

  In this way, when the covered electric wires 4 are sequentially inserted into the respective covered electric wire insertion grooves 14 and penetrated to the rear of the lower block material 1, the coil spring pressing block material 12 is raised as shown in FIGS. Then, a strong pressing force of the coil spring 11 is applied to the covered wire pressing rod 6 and is biased upward with a strong force. Therefore, the covered electric wire 4 inserted into the covered electric wire insertion groove 14 is strongly pressed from the covered electric wire pressing rod 6 and is fixed securely. In this state, a predetermined operation such as stripping off the covering of the end portion of the covered electric wire 4 or fixing the crimp terminal fitting 24 is performed. After the completion of the operation, the upper block member 2 is moved upward as shown in FIGS. If separated, the processed covered electric wire 4 to which the crimp terminal fittings 24 and the like are fixed can be taken out upward.

  As described above, in the covered electric wire tip position fixing device according to the present invention, the covered electric wire is inserted into the covered electric wire insertion groove provided in several strips, and the temporary positioning and fixing by the weak spring force is performed by the covered electric wire pressing rod from below. Since it is configured so that it can be fixed with a strong spring force and taken out upward after the work is completed, multiple covered wires can be fixed in parallel at narrow intervals, and the entire device can be compactly assembled. Has the effect of In addition, there are few moving parts, and the movement is simple vertical movement. The drive mechanism can be installed at the vertical position of the main body of the device, so the installation area can be reduced, adjustment is easy, and there are few failures. It has excellent operability. Furthermore, it is easy to manufacture and can be procured at low cost.

  It has great utility in the manufacture of automotive electrical components, various home appliances, and industrial electrical equipment.

The front longitudinal cross-sectional view of one Example of the covering electric wire front-end | tip part position fixing device which concerns on this invention. Similarly, the front longitudinal cross-sectional view of a state where the coil spring pressing block material 12 is raised. The partial perspective view for demonstrating the positional relationship of the lower block material 1 and the upper block material 2 which are the main components of this invention. Similarly, the perspective view of the state which isolate | separated the lower block material 1 and the upper block material 2. FIG. FIG. 2 is an enlarged longitudinal sectional view of the state shown in FIG. 1 viewed from the side surface direction. Similarly, the expanded longitudinal cross-sectional view which looked at the state which is temporarily fixing the covered electric wire 4 with the weak coil spring 7 from the side surface direction. Similarly, the expanded longitudinal cross-sectional view which looked at the state which fixed the covered electric wire 4 with the strong coil spring 11 from the side surface direction. The expanded sectional view which looked at the state which completed a series of work and isolate | separated the upper block material 2 from the side surface direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower block material 2 Upper block material 3 Upper surface 4 Covered electric wire 5 Through-hole 6 Covered electric wire press rod 7 Weak coil spring 8 Locking piece 9 Connector 10 Recess 11 Strong coil spring 12 Coil spring press block material 13 Housing recess 14 Covered electric wire insertion groove 15 Covered wire guide notch 16 Lower surface 17 Connector holding block 18 Arc portion 21 Connector holding through hole 22 Frame body 23 Spring material 24 Crimp terminal fitting

Claims (1)

Covered wires (4) covered electric wire insertion groove having a substantially rectangular having a slightly larger transverse width and depth than the outside diameter of the cover portion (14) is formed on the upper surface (3) in plural rows parallel across the longitudinal direction, the frame A metal lower block material (1) supported by the body (22), and an elevating mechanism having a flat lower surface (16) which is provided with an elevating mechanism and is in close contact with the upper surface (3) of the lower block material (1). It becomes because the upper block member (2) capable, respectively vertical holes (5) are formed directly below the wire insertion groove of the lower block member (1) (14), in the transparent hole (5) Weak pressing force so that the arc-shaped portion (18) of the covered wire pressing rod (6) having an arc-shaped portion (18) whose upper end bulges in a curved shape is slightly exposed in the wire insertion groove (14) . Is positioned while being urged upward by the Weak coil spring at the bottom (6) (7) further into the lower portion of the weak coil spring (7), forms a recess (10) bottomed cylindrical shape which is formed along the axis, the flange on the upper edge A locking piece (8) is formed, a connector (9) in which the lower part of the weak coil spring (7) is inserted into the recess (10 ), and a horizontally long rectangular parallelepiped shape, the frame (22 ) And both ends are supported and held at a predetermined position with respect to the lower block material (1), and through-holes for connecting connectors (21) are formed in a line at equal intervals. A connector holding block (17) for holding the connector (9) by placing a collar-like locking piece (8) of the connector (9) on the upper edge of the connector holding through hole (21 ). , together with the attached coaxially, each strong coil spring (11) through a strong Koiruba A coil spring pressing block material in the lower part provided with a lifting mechanism (11) (12) has been brought position, by raising the coil spring pressing block member (12), by the force of the strong spring (11) A covered electric wire tip position fixing device, wherein the covered electric wire pressing rod (6) can be biased upward.

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