JP2015099655A - Assembling the wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wire cross between a bush and an insulator.SOLUTION: A chuck device 6 is prepared to which a hold state where a wire 4 is held and an open state where the wire 4 is not held are set. In a wire holding step, the wire 4 is held by the chuck device 6 at a position where the chuck device 6 and a bush 3 are abutted, thereby preventing a wire cross from occurring between the chuck device 6 and the bush 3. A protruding length of the wire 4 from the chuck device 6 is shortened and the wire 4 is inserted into an insulator 2 as illustrated in Fig.4, thereby preventing the occurrence of the wire cross between the chuck device 6 and the insulator 2. The chuck device 6 is then removed and the bush 3 is inserted into a case 1.

Description

  The present invention relates to a method for assembling a wire harness having a plurality of wires.

  Conventionally, as this kind of wire harness, there is one described in Patent Document 1, for example. In the wire harness described in Patent Document 1, an insulator is accommodated in a cylindrical case, and one end side of the case is closed by a bush. And the wire is inserted in the through-hole of the bush in the state arrange | positioned in two rows and being arranged in multiple numbers for every row.

  There is also known a wire harness in which a wire is inserted not only into a through hole of a bush but also into a through hole of an insulator. In the assembly process of the wire harness, after the wire is inserted into the through hole of the bush, the wire is inserted into the through hole of the insulator.

Japanese Patent No. 4450204

  However, in the conventional wire harness in which the wire is also inserted into the through hole of the insulator, the length of the wire protruding from the bush when the wire is inserted into the through hole of the insulator is changed from the end of the case to the end of the insulator. Need to be more than the distance.

  When the wire protrusion length is set in this way, the wire protruding from the bush is easily bent. Therefore, when the wire is inserted into the through hole of the insulator, the wire is crossed between the bush and the insulator. May be. As a result, there arises a problem that some or all of the plurality of wires are inserted into a through hole at a position different from the through hole at a predetermined position.

  In view of the above points, an object of the present invention is to prevent a wire cross between a bush and an insulator.

  In order to achieve the above object, according to the first aspect of the present invention, a plurality of wires (4), a terminal (5) coupled to one end of the wires, and a cylindrical shape having a case accommodating hole (11) inside. The insulator (2) which has a case (1), an insulator through-hole (21) into which a wire is inserted, and an insulator accommodation space (22) in which a terminal is accommodated, is inserted into the case accommodation hole and is made of an insulating material And a bushing (3) having a bush through hole (33) into which the wire is inserted, and being inserted into the case receiving hole and closing one end of the case receiving hole. Are provided with at least two chuck members (61, 62) in which wire insertion grooves (611, 621) are inserted one by one. The two chuck members move relatively. Prepares a chuck device (6) in which a holding state holding the wire and an open state not holding the wire are prepared, an insulator insertion step of inserting the insulator into the case housing hole, and the wire into the bush through hole After the wire insertion step to be inserted and the wire insertion step, the chuck device is held in a state where the wire protrudes from the other end surface of the chuck member at a position where the one end surface of the bush and the one end surface of the chuck member abut. A wire holding step, a first moving step for relatively moving the wire, the bush, and the chuck member to a position where the protruding length of the wire from the other end surface of the chuck member becomes a predetermined value or less after the wire holding step; After the insertion step and the first movement step, while inserting the wire protruding from the chuck member into the insulator through hole, A chuck member inserting step of inserting the chuck member into one end side of the case housing hole until the end surface of the insulator and the other end surface of the chuck member abut, and after the chuck member inserting step, the wire is connected to the other end of the case housing hole. A second moving step for relatively moving the wire, the bush and the case to a position protruding from the side; and after the second moving step, the wire, the case and the chuck member are relatively moved to a position where the chuck member comes out of the case receiving hole. It is characterized by comprising a third moving step for moving, and a wire harness removing step for releasing the wire from the wire insertion groove by opening the chuck device after the third moving step.

  According to this, in the wire holding step, since the wire is held by the chuck device at a position where the one end surface of the bush and the one end surface of the chuck member abut, no wire cross is generated between the bush and the chuck member.

  Further, in the first movement step, since the protruding length of the wire from the chuck member is set to a predetermined value or less, the wire protruding from the chuck member is difficult to bend. Therefore, when the wire is inserted into the insulator through hole in the chuck member insertion step, no wire cross is generated between the chuck member and the insulator.

  As a result, wire crossing between the bush and the insulator can be prevented, and each wire can be inserted into the insulator through hole at a predetermined position.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

It is sectional drawing which shows the structure of the wire harness assembled | attached by the wire harness assembly method which concerns on one Embodiment of this invention. (A) is a figure which shows the wire holding process in the wire harness assembly | attachment method which concerns on one Embodiment of this invention, (b) is AA sectional drawing of (a). (A) is a figure which shows the 1st movement process in the wire harness assembly | attachment method which concerns on one Embodiment of this invention, (b) is BB sectional drawing of (a). It is a figure which shows the chuck | zipper member insertion process in the wire harness assembly | attachment method which concerns on one Embodiment of this invention. It is a figure which shows the wire harness taking-out process in the wire harness assembling method which concerns on one Embodiment of this invention. It is a figure where it uses for description of the incorrect assembly | attachment detection in the wire harness assembly | attachment method which concerns on one Embodiment of this invention.

  An embodiment of the present invention will be described.

  As shown in FIG. 1, the wire harness includes a case 1, an insulator 2, a bush 3, a wire 4, and a terminal 5.

  The case 1 is made of metal, has a cylindrical shape, and has a case accommodation hole 11 inside. The case housing hole 11 penetrates the case 1 from one end side in the axial direction to the other end side.

  The insulator 2 is made of an insulating material such as ceramic, has a cylindrical shape, and is inserted into the case housing hole 11. The insulator 2 has an insulator through-hole 21 into which the wire 4 is inserted and an insulator housing space 22 in which the terminal 5 is housed. The insulator through-hole 21 opens to one end side in the axial direction of the insulator 2, the insulator housing space 22 opens to the other end side in the axial direction of the insulator 2, and the insulator through-hole 21 and the insulator housing space 22 communicate with each other.

  The bush 3 is made of rubber and has a cylindrical shape having a bush large-diameter portion 31 and a bush small-diameter portion 32 having a smaller diameter than the bush large-diameter portion 31, and is inserted into the case housing hole 11 to be one end of the case housing hole 11. Block the side. The bush 3 has a bush through hole 33 into which the wire 4 is inserted. The bush through hole 33 penetrates from one end side in the axial direction of the bush 3 to the other end side.

  The wire 4 is obtained by covering a core wire made of a metal of a good electrical conductor with a coating layer made of a resin having high electrical insulation. The terminal 2 is made of a metal having a good electrical conductor. A terminal 5 is coupled to one end of each wire 4, and a terminal such as a sensor (not shown) is connected to the terminal 5.

  The insulator through hole 21 and the bush through hole 33 are arranged in two rows in the vertical direction on the paper surface of FIG. 1, and two are arranged in each of the upper row and the lower row. And the wire 4 is inserted in each insulator through-hole 21 and each bush through-hole 33, respectively. Hereinafter, the two wires disposed on the upper side are referred to as a first row of wires, and the two wires disposed on the lower side are referred to as a second row of wires.

  Next, the wire harness assembling apparatus will be described. As shown in FIG. 2, the wire harness assembling apparatus includes a chuck device 6 and a stopper 7.

  The chuck device 6 includes a first chuck member 61 that holds the first row of wires 4, a second chuck member 62 that holds the second row of wires 4, and a gap between the first row of wires and the second row of wires. And a partition plate 63 in contact with each wire 4.

  The first chuck member 61 is formed with two first wire insertion grooves 611 into which the first row of wires 4 are inserted. The second chuck member 62 has two second wire insertion grooves 621 into which the second row of wires 4 are inserted. That is, the same number of wire insertion grooves 611 and 621 as the wires 4 are formed.

  The first chuck member 61 and the second chuck member 62 are arranged so that the first wire insertion groove 611 and the second wire insertion groove 621 are opposed to each other, and the alignment direction of the first chuck member 61 and the second chuck member 62 (that is, 2 can be reciprocated in the vertical direction on the paper surface of FIG.

  The partition plate 63 has a flat plate shape and has two flat holding surfaces 631 in contact with the wires 4. One holding surface 631 is in contact with the first row of wires 4, and the other holding surface 631 is in contact with the second row of wires 4. The partition plate 63 is fixed to a table (not shown).

  The stopper 7 is a metal plate and has a stopper groove 71 into which the bush 3 is inserted. The width of the stopper groove 71 is smaller than the outer dimension of the bush large-diameter portion 31 and larger than the outer dimension of the bush small-diameter portion 32.

  Next, a procedure for assembling the wire harness will be described with reference to FIGS.

  First, in the wire insertion step, the wire 4 is inserted into the bush through-hole 33 to integrate the wire 4 and the bush 3. Further, in the insulator insertion step, the insulator 2 is inserted into the case housing hole 11 so that the insulator 2 and the case 1 are integrated. This insulator insertion step may be executed by the chuck member insertion step described later.

  A wire holding process is performed after a wire insertion process. In the wire holding step, first, the first chuck member 61 and the second chuck member 62 are relatively moved in a direction in which the first chuck member 61 and the second chuck member 62 move away from each other. Accordingly, a gap is formed between the surface of the first chuck member 61 where the first wire insertion groove 611 is formed and the holding surface 631 of the partition plate 63, and the second wire insertion groove of the second chuck member 62. A gap is formed between the surface on which 612 is formed and the holding surface 631 of the partition plate 63. The state where the first chuck member 61 and the second chuck member 62 move away from each other and the wire 4 is not held is hereinafter referred to as an open state.

  In this open state, the positions of the bush 3 and the partition plate 63 are set so that the one end surface of the bush 3 and the one end surface of the partition plate 63 come into contact with each other.

  Subsequently, the bush large diameter portion 31 is inserted into the stopper groove 71, and the bush 3 and the wire 4 are fixed to the stopper 7.

  Subsequently, among the wires 4 protruding from the bush small diameter portion 32, the first row of wires 4 is inserted into a gap between the surface on which the first wire insertion groove 611 is formed and the holding surface 631. Further, among the wires 4 protruding from the bush large-diameter portion 31, the second row of wires 4 is inserted into the gap between the surface on which the second wire insertion groove 621 is formed and the holding surface 631 (see FIG. 2). .

  At this time, the protruding length of the wire 4 from the large-diameter portion 31 of the bush is set sufficiently longer than the length of the chuck device 6 (the length in the left-right direction in FIG. 2A).

  Subsequently, the first chuck member 61 and the second chuck member 62 are moved so that the first chuck member 61 and the second chuck member 62 approach each other. As a result, the first row of wires 4 is inserted into the first wire insertion groove 611, the first row of wires 4 is held by the first chuck member 61 and the partition plate 63, and the second wire insertion groove 621 is inserted into the second wire insertion groove 621. The second row of wires 4 is inserted, and the second row of wires 4 is held by the second chuck member 62 and the partition plate 63.

  At this time, the positions of the first chuck member 61, the second chuck member 62, and the bush 3 are set so that the respective one end surfaces of the first chuck member 61 and the second chuck member 62 abut on the one end surface of the bush 3. ing.

  The state where the wire 4 is held by moving the first chuck member 61 and the second chuck member 62 closer to each other is hereinafter referred to as a holding state.

  The wire holding process is thus completed. In this wire holding step, the chuck device 6 holds the wire 4 at a position where one end face of each of the first chuck member 61 and the second chuck member 62 abuts on one end face of the bush 3. And a wire cross between the bush 3 does not occur.

  Subsequently, after the wire holding step, the first moving step is executed. In the first moving step, the wire 4 and the bush 3 are moved in a direction in which the bush 3 moves away from the chuck device 6, and the protruding length of the wire 4 from each other end surface of the first chuck member 61 and the second chuck member 62. L is adjusted to a predetermined value or less (see FIG. 3). The protruding length L of the wire 4 is desirably about 3 mm.

  As shown in FIG. 6, when the bush large diameter portion 31 is mistakenly assembled so as to be positioned closer to the chuck device 6 than the bush small diameter portion 32, the bush 3 is moved away from the chuck device 6. Can not detect misassembly.

  Subsequently, the chuck member insertion step is executed after the insulator insertion step and the first movement step. In the chuck member inserting step, the wire 4 protruding from the chuck device 6 is inserted into the insulator through-hole 21 while the one end surface of the insulator 2 and the other end surfaces of the first chuck member 61 and the second chuck member 62 are in contact with each other. Until then, the chuck member 6 is inserted into one end side of the case accommodation hole 11 (see FIG. 4).

  Here, in the first movement step, the protruding length L of the wire 4 from each other end surface of the first chuck member 61 and the second chuck member 62 is set to a predetermined value or less, so that the wire 4 at the protruding portion is difficult to bend. . Therefore, when the wire 4 is inserted into the insulator through hole 21 in the chuck member inserting step, no wire cross is generated between the chuck device 6 and the insulator 2.

  Subsequently, after the chuck member inserting step, a second moving step is executed. In the second moving step, the wire 4 and the bush 3 are moved in a direction in which the bush 3 approaches the chuck device 6, and the wire 4 is protruded from the other end side of the case housing hole 11.

  Subsequently, after the second movement process, the third movement process is executed. In the third movement step, the wire 4 and the case 1 are moved to a position where the chuck member 6 comes out of the case accommodation hole 11. Specifically, the wire 4 and the case 1 are moved in a direction in which the case 1 moves away from the chuck device 6.

  Subsequently, after the third movement process, a wire harness take-out process is executed. In the wire harness removing step, the chuck device 6 is opened (see FIG. 5). Then, the wire 4 is removed from the first wire insertion groove 611 and the second wire insertion groove 612, and the bush 3 is removed from the stopper groove 71.

  Then, a terminal assembly process is performed after a wire harness taking-out process. In the terminal assembly process, after the terminal 5 is coupled to the wire 4, the wire 4 and the terminal 5 are moved to a position where the terminal 5 is accommodated in the insulator accommodating space 22, and finally the bush 3 is inserted into the case accommodating hole 11. (See FIG. 1).

  According to this embodiment, wire crossing between the bush 3 and the insulator 2 can be prevented, and each wire 4 can be inserted into the insulator through hole 21 at a predetermined position.

(Other embodiments)
In addition, this invention is not limited to above-described embodiment, In the range described in the claim, it can change suitably.

  Further, in the above-described embodiment, it is needless to say that elements constituting the embodiment are not necessarily indispensable except for the case where it is clearly indicated that the element is essential and the case where the element is clearly considered to be essential in principle. .

  Further, in the above embodiment, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is particularly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to a specific number except for cases.

  In the above embodiment, when referring to the shape, positional relationship, etc. of components, the shape, position, etc., unless otherwise specified and in principle limited to a specific shape, positional relationship, etc. It is not limited to relationships.

DESCRIPTION OF SYMBOLS 1 Case 2 Insulator 3 Bush 4 Wire 5 Terminal 6 Chuck apparatus 11 Case accommodation hole 21 Insulator through-hole 22 Insulator accommodation space 33 Bush through-hole 61 Chuck member 62 Chuck member 611 Wire insertion groove part 621 Wire insertion groove part

Claims (2)

A plurality of wires (4);
A terminal (5) coupled to one end of the wire;
A cylindrical case (1) having a case receiving hole (11) therein;
An insulator through-hole (21) into which the wire is inserted and an insulator accommodation space (22) in which the terminal is accommodated; and an insulator (2) made of an insulating material while being inserted into the case accommodation hole;
A method of assembling a wire harness comprising a bush through hole (33) into which the wire is inserted, and a bush (3) inserted into the case housing hole and closing one end side of the case housing hole,
At least two chuck members (61, 62) having wire insertion grooves (611, 621) into which the wires are inserted one by one are provided, and the two chuck members move relatively, whereby the wires A chuck device (6) in which a holding state holding the wire and an open state not holding the wire are prepared,
An insulator insertion step of inserting the insulator into the case housing hole;
A wire insertion step of inserting the wire into the bush through hole;
After the wire insertion step, the chuck device is brought into the holding state with the wire protruding from the other end surface of the chuck member at a position where one end surface of the bush and the one end surface of the chuck member abut. Wire holding process;
After the wire holding step, a first moving step of relatively moving the wire, the bush, and the chuck member to a position where the protruding length of the wire from the other end surface of the chuck member is a predetermined value or less;
After the insulator insertion step and the first movement step, while inserting the wire protruding from the chuck member into the insulator through hole, to a position where one end surface of the insulator and the other end surface of the chuck member abut, A chuck member inserting step of inserting the chuck member into one end side of the case housing hole;
A second moving step of relatively moving the wire, the bush and the case to a position where the wire protrudes from the other end side of the case housing hole after the chuck member inserting step;
After the second moving step, a third moving step of relatively moving the wire and the case and the chuck member to a position where the chuck member comes out of the case receiving hole;
A wire harness assembling method comprising: a wire harness removing step of releasing the wire from the wire insertion groove after the third moving step, with the chuck device in the open state. The wires are arranged in two rows and inserted into the insulator through hole and the bush through hole in a state where a plurality of wires are arranged for each row,
The chuck device includes a first chuck member (61) in which the wire insertion groove (611) into which the wire in one row is inserted and the wire insertion groove (in which the wire in the other row is inserted ( 621) and a partition plate (63) that separates the wire in one row and the wire in the other row and contacts the wire. The wire harness assembling method according to claim 1.

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