JPS5929355Y2 - Wire connection machine for contacts with crimp terminals with stripping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire splicing machine with a device for removing the coating of a contact having a crimp terminal metal, a so-called strip per crimper.

A multi-pole connector with contacts having crimp terminals, that is, as shown in the perspective views shown in Figures 1a and b, a crimp claw c1 for crimping and fixing the covering part tl of the electric wire a, and a crimp for crimping and fixing the core wire part d. It has claws c2 and 4.

In a multi-pole connector constructed using crimp terminals ek) fTh (here, e' is the contact part), the contact fe is inserted and fixed into the contact fixing hole of the insulating block as shown in Figure 1. crimp nail e
It is difficult to connect the electric wire AI by crimp lvc2f.

Therefore, a connector is constructed by connecting an electric wire to the contact in advance and fitting it into the fixing hole of the gold contact.

Therefore, conventionally, as shown in the perspective view shown in Fig. 2, by feeding a series of connected contacts (hk) in a horizontal line in a comb-like manner using a connecting piece (g), it is possible to automatically strip off the coating and connect. A splicing machine with a standard stripping device is used.

This device is shown in a schematic perspective view, for example, in FIG.

1 drive source 1sl' for line fixing, each moving in the direction of arrow A in the figure. A part for fixing the electric wire ae to be connected to the wire fixing body of the second arm j, j' by ';
1st for fixing the wire. The first arm moves in the A direction together with the second arm, and the first arm for fixing the line is driven by the driving sources l and l'. 2nd arm j, j'
(in the direction of arrow B in the figure).

V-shaped cutting blade n of the 1st and 2nd arms m and m' for coating stripping
As mentioned above, a cut is made into the covering of the electric wire a which is fixed to the wire fixing body by the ni', and then the part is stripped off.

The crimping body p of the crimp claw moves up and down in the direction of arrow C in the figure by the drive source 0, and the contact pedestal q is fixed.
By the part connected to the stripped electric wire ai terminal part and the contact continuous feed arm S which moves in the direction of the arrow by the drive source r.

The contact fk consists of a part that is fed onto the contact pedestal q.

This device has the advantage of automatically forming the crimp connection as described above, but on the other hand, as is clear from the above, the first one for wire fixation. Second arm, first arm for stripping. The second arm, the crimping body of the crimp claw, and the contact continuous feeding arm each have a plurality of independent driving sources 151', l, l.
l' 10 and r must have a driving source, for example a piston device operated by compressed air.

Therefore, not only does the device become complicated and expensive, but even if one drive source fails, it causes the entire device to become inoperable, which has a negative impact.

Furthermore, in this device, it is necessary to operate each drive source in a predetermined order at a predetermined time interval as described above, and for this purpose, expensive solenoid valves of piston devices, relay devices, time limit devices, etc. are required. A sequence control device (not shown) is required.

Therefore, not only does the device become complicated and expensive, but there are also disadvantages such as an increased possibility of generating a malfunctioning sound.

This invention is the first for wire fixing. Second arm, first arm for stripping.
The drive source required for the operating parts other than the crimp claw crimping body of the terminal section, such as the second arm and the feed arm of the contact chain, and the mechanical force acting direction change by a cam mechanism from the drive source of the crimp claw crimping body. In this way, only one drive source is needed, and at the same time, each operating part can be reliably driven at a predetermined interval and in a predetermined order, without using a complex and expensive sequence control device like in the past. The invention was designed to simplify the structure of the wire connector, reduce its cost, and improve its operational reliability.

Next, I will explain the details using drawings and sounds. FIG. 4 is a perspective view of an embodiment of the present invention, and FIG. 5a.

b 5 C, d, and e are partial views, and FIGS. 6a, b, and c are partial views showing the relationship between the cam pillar and the pressing roller, etc.

In Fig. 4, 1 and 1' are the first wire fixing pins. The second arm, 2.2' is a wire fixing body, and the wire holder is a pin.

3 is a return spring; The 27-arms 1 and 1' have an inverted T-shaped protrusion tk provided at the arm 1°1' measurement and a guide groove U of the same shape provided at the pace 4 measurement, as shown in the cross-sectional view shown in FIG. 5a, for example. 1 and is slidably held so as to be able to reciprocate in the direction of arrow A in FIG. Arms 1, 1' by second cam pillars 22, 22'
With the movement A1, the wire holder is inserted so as to rest on the pin 2 and is clamped and fixed by the wire fixing members 2 and 2'.

Also, when the cam pillar rises after the wire connection is completed, the return spring 3
to return to the original position and release the fixation.

5.5' is No. 1 for stripping the coating. The second arm, 6.6' is a coated cutting body 5//, and 6tn is its V-shaped cutting blade.

I is a line positioning body, 8 and 8' are return springs, and the first . The second arm 5, 5' is a first arm for stripping the coating, which will be described later.
The second cam plate 27 controls the first cam plate 27 for fixing the wire. 2nd arm 1
, 1' for reciprocating in the direction perpendicular to the movement direction of the wires (in the direction of arrow B in the figure). The protrusion W provided on the stripping arms 5, 5' is slidably held by a horizontal T-shaped guide structure V provided on the stripping arm 5, 5'.

The scraped coating notch 6,6' and the line positioning body 7 are arranged in the first stripping section with the necessary spacing to obtain a predetermined stripping length.
゜Fixed to the second arms 5, 5'.

Then, as mentioned above, the first wire fixing tube. 2nd arm 1, 1'
However, the first wire fixing method described later. Second cam pillar 22, 22'
When the blades move in the direction of arrow A1 in the figure, the ■-shaped cutting blades 6// and 6/// overlap each other to sandwich the wire, and the tips of the cutting blades are connected to the wire positioning member 7 via the wire fixing member 2.2"Th.
Insert a notch into the sheathing of the wire that is pressed against the surface.

Then, the first one for stripping the coating. The second arm 5.5' is in turn attached to the first arm for stripping, which will be described later. The second cam plate 27 moves backward in the direction of arrow B1 in the figure, and the cutting blade 6//96'' squeezes and strips the coating metal.

After connecting the electric wire, return spring 8. ．． 8' returns to the original position.

Reference numeral 9 denotes a contact pedestal, and numeral 10 denotes a crimp claw crimping body. In the contact cradle 9, the covering portion and the core wire portion of the electric wire are connected to the crimp claw c of the terminal portion, respectively, as explained in FIG.
It is provided at the lower part of the wire fixed by the wire fixing bodies 2, 2' and stripped of the sheath so as to be located at an angle of 1°c2.

The crimp claw crimping body 10 has an inverted V-shaped cutting arrow part 10' provided corresponding to the core wire portion, and an inverted V-shaped notch provided in a deep metal fitting corresponding to the covering portion having a diameter thicker than the core wire portion. 10, and reciprocates in the direction of arrow C in the figure by a drive source 18, which will be described later.

Then, by the descending movement C1 carried out after stripping the coating, the contact pedestal 9 crimps the crimp hook of the terminal portion on which the electric wire is placed and makes a connection, and then returns to the original position by the rising movement C2.

11 is the feed guide plate of the contact series explained in Fig. 2;
As shown in the cross-sectional view of FIG. 5C, a guide groove 11', which is slightly larger than the width of the contact chain, is provided at one end with a feed groove 11' for the connecting piece g of the contact chain.

The guide groove 11 is fixed to the base 4 so that the bottom surface thereof substantially coincides with the upper end surface of the contact holder 9, and the opening of the feed groove 11' coincides with the front end surface of the contact holder 9.

12 is a feed arm, 12' is a feed pawl provided on the lower surface of its tip, and in the center thereof is a shallow groove 12 into which a connecting piece g' shown in FIG.
〃Have money.

13 is a feed arm holder, and 14 is its feed spring. The feed arm holder 13 is slidably held on the feed guide plate 11 of the contact series so that it can reciprocate in the direction of the arrow in the figure.

Then, the tip of the feed pawl 12' is always kept in a light contact with the connecting piece g' of the contact chain by a spring body (not shown), and the connecting piece g' is inserted into the shallow groove 12 of the feed arm 12, Contact f due to movement D1 due to 14
'Th Feed it onto the cradle 9.

Then, during the electric wire connection operation, the feed arm 12kD is again moved by the movement D2 by the feed arm cam pillar 30, which will be described later.
Return it in the direction of 2 and insert the connecting piece g Z e in the shallow groove 12.
When the wire is connected and the cam post 30 is disengaged, the contact is moved again in the direction Dl by the feed spring 14 and sent onto the contact holder 9.

15 is a cut piece of the joint piece. Reference numeral 15' denotes a pressing protrusion for escaping the filament, 16 a suppressor for the joint piece cutting body, and the cutting body 15 has a feed groove communicating with the connecting piece feed groove 11' of the guide plate 11 as shown in FIG. 5d. 15, and is held on the base 4 so as to be movable up and down in contact with the front end surface of the contact holder 9 so that it can automatically return upward by a spring body (not shown).

Further, the pressing body 16 is fixed to the crimp body 10 and is formed so as to be able to move up and down, and presses the protrusion 15' of the coupling piece cutting body 15 downward almost at the same time as the terminal portion is crimped by the crimp body 10.
The angle 9' of the contact pedestal 9 and the corner 15 of the cutting body 15
The connecting piece G' is cut off by '', and after one or more operations, the wire fixing brush 1. Second arm, stripping of the coating 1. The second arm and feed arm return to their original positions.

Next, 17 is a driving plate for the crimp claw crimping body and the cam pillar, 17'
18 is a driving plate guide column whose lower end is fixed to the base 4, 18 is a driving source, and 19 is a connecting shaft between the driving plate and the driving source. The length of the connecting shaft 19 can be finely adjusted by a machine groove (not shown). .

The degree of crimping by the crimp claw crimping body 10 fixed here, the wire fixing arm 1, 1', the coating stripping arm 5, 5'
The engagement position between the feed arm 12 and each cam pillar can be finely adjusted.

20.20' is an arm pressing roller, which is supported by a support shaft 2L21' that is pivotally attached to the base 4 so that it can move in the movement direction (direction A) of the first and second wire fixing arms 1 and 1'. .

22.22' is the wire fixing work, second cam pillar, 23.23
' is a pressing slope provided at the lower end thereof and descends to the outside, and the 1st and 2nd cam pillars 22 and 22' are
The pressing roller 20 is pressed by the pressing slopes 23, 23'.

1st. It is fixed to the drive plate 17 so as to lightly touch both left and right side surfaces of the second arms 1 and 1'.

When fixing to the drive plate 17, as shown in the perspective view of FIG. 5e, the drive plate 17 (not shown in the figure) is fixed.

), a guide hole 17''i longer than the width of the cam pillars 22, 22' is provided in the fixed body 17''', and the cam pillar 22 is inserted into the guide hole 17''i.
．． 22"k, so that it can be fixed with the elongated hole 17" provided in the fixing body 17 and the bolt 24.

The left and right positions of the cam pillars 22, 22' can be coarsely adjusted.

In addition, by rotating a fine adjustment bolt 25 that is screwed into the fixed body 17 and whose tip is rotatably supported by the cam column 22, the position of the seven cam columns can be finely adjusted according to the thickness of the electric wire. This ensures that the wires are securely fixed and the sheath is cut.

Note that 25' is an adjustment scale provided for measuring the fixed body 17.

Then, the drive plate 17 is lowered l~ by the drive source 18. As shown in Figure 6a, the first line for fixing the wire. When the second cam column 22.22' descends, the pressing slope 23.23' moves the pressing roller 20,
20', the first and second wire fixing arms i, i'i are pushed in the direction of the arrow A1 in the figure to fix the wire a with the wire fixing bodies 2, 2' and cover the wire as shown by the dotted lines in the figure. The coating is cut by the cutting bodies 6, 6', and when this is finished, the pressure roller 20, 20' is moved to the first. Second cam pillar 22, 22
1 and 23'', so that the first and second wire fixing arms 1 and 1' are no longer pressed.

Reference numeral 26 denotes a coating stripping arm pressing roller, and its rotating shaft 26
1. It is rotatably supported by shaft holes (not shown) provided in the second arms 5, 5'.

27 is a coating stripping cam column, and 28 is a coating stripping brush 1 provided at its lower end. At the suppression slope descending in the direction of stripping of the second arms 5, 5' (in the direction of arrow B1 in the figure).

When the cam column 27 is lowered, the pressing slope 28 of the cam column 27, as shown in FIG. 6, pushes the coating stripping brush 1. When the 27th cam 5, 5'□ surface is pushed in the direction of arrow B1 and the coating has been stripped by the coating notches 6, 6', the pressing roller 26 is located on the vertical side surface 28' of the cam column. Then, it is fixed to the drive plate 17 so that no further movement occurs.

Reference numeral 29 denotes a pressure roller of the feed arm holder 13, which is rotatably supported in the direction of movement of the feed arm holder 13.

30 is a cam column for the feed arm, and 31 is a suppressing slope provided at its lower end.
The feed arm holder 1 is pushed in the direction of the arrow D2 in the figure against the force of the feed spring 14 through the 9-metal wire. The second cam post 22° 22', the stripping cam post 27 and the feed arm cam post 30 are connected to the first line fixing cam post 22, 22', respectively in the following relative positions: 27th arm 1 , 1 ′, .

The length of each cam pillar, fixing position, etc. are selected.

That is, the first wire fixing cam pillars 22, 22' are the first wire fixing cam columns 22, 22'.
The second arm 1, 1' is pushed and inserted into the wire positioning body 7, and the wire is fixed by the wire fixing body 2, 2', and at the same time, the coating is cut into the coating by the coating cutting body 6, 6'. Put money in.

Next, the coating stripping cam post 27 is moved to the coating stripping arms 5, 5'.
After the crimp claw presser 10 engages with and strips off the coating metal, the crimp claw presser 10 crumps the terminal portion of the contact located on the contact holder 9.

Further, between fixing the electric wire and crimping the terminal part, the feed cam support cam pillar 30 engages with the feed arm holder 13.
Push the button to move the contact on the feed arm 12 and slide it. Next, hold the connecting frame of the feed and fr contacts on the contact holder 9. After connecting the two electric wires, pull up the drive plate 17 to remove the feed arm holder. 13, the feed arm holder 13 is moved by the feed spring 14, and the next contact is fed onto the contact pedestal 9, and each cam post and crimp claw crimping body are moved again. etc. to connect the electric wires.

As described above, the present invention includes a cam post which is moved in the same direction as the crimp claw crimping body by the driving source of the crimp claw crimping body, and a pressing slope that engages each operating arm provided at the lower end of the cam pillar in the direction of the movement. Converting the movement into a perpendicular direction, the first line fixing motion is performed. 2nd arm, stripping brush 1. second arm,
I am trying to make the feed arm and other parts move.

Therefore, only one driving source and a spring body for returning each arm are required to make the crimp claw's crimping body sound, and unlike the conventional device, each operating arm is operated by compressed air. It is not necessary to provide a drive source such as a piston device, and there is no need for a complex and expensive sequence control device such as a solenoid valve device for operating each drive source in a housing at predetermined time intervals and in a predetermined order.

Therefore, not only is the device simple and inexpensive, but also the mechanically robust cam mechanism of the present invention allows four driving forces for each operating arm to be obtained from the same drive source, and one cam column to secure the position of each operating arm. Depending on the operating order, the operating time interval is so that you can earn money.

Therefore, there is no risk that the entire operation will be disabled due to a failure of a partial drive source, unlike in the past, and there is no inoperability or fluctuation in sequence time interval due to a failure of the sequence control device, and the electric wire can be reliably connected. Can be connected to gold.

In the present invention, the position metal of the first cam column 22 for fixing the wire on the drive plate 17 is small.

Coarse adjustment is possible using the elongated hole 17'' and bolt 24,
Fine adjustment can be made by rotating a closed adjustment bolt 25.

Therefore, for example, align the first cam column 22 with respect to the wire of the minimum thickness to be connected, and at this time, make sure that the pointer provided on the adjustment bolt 25 points to 'o' 2 on the indicator scale 25', and use this as the metal reference point. By placing a gold scale at the position corresponding to each wire with a different diameter, even if the diameter of the wire changes, the fixing force of the wire may be too strong and crush the wire, or the core wire may be damaged if the cut into the sheath is too deep. Easily attach the first and second cam pillars 2 to avoid damaging them and causing wire breakage.
2.22' spacing can be adjusted.

In the above embodiment, the single coating stripping column 27 is used to remove the coating from the first column. Although the second arm 5.5' is operated, two cam pillars may be provided and each may be operated independently.

Although the arm 4 is operated by the gold cam pillar of each arm via the pressing roller when the arm is shattered, it is also possible to push the arm 4 directly by the cam pillar.

However, this has the disadvantage that wear causes noise in the relative position of the arm and cam column, and that the cutting depth of the coating is likely to be distorted.

In the above, we have explained a connecting machine that connects wires by sending contact wires in which contacts are connected in a horizontal row in a comb shape, but the same applies to the case where, for example, there is a contact wire field in which contacts are connected in a single row in the vertical direction. Applicable to

As is clear from the above explanation, according to the present invention, it is possible to provide a wire connecting machine with a simple structure and a sheathing stripping device that can reliably connect wires to contacts with crimp terminals. The effect is strong.

[Brief explanation of drawings]

Figures 1a and b are perspective views showing the structure of crimp terminals and contacts and the connection state of wires. Figure 2 is a perspective view of a series of contacts used in a wire splicing machine. Figure 3 is a perspective view of a conventional wire connection. FIG. 4 is a schematic perspective view of a connecting machine; FIG. 4 is a perspective view of an embodiment of the present invention; FIGS. 5a, b, and c. d and e are partial explanatory views, and FIGS. 6a, b, and c are partial explanatory views showing the relationship between the cam pillar and the suppression roller, etc. 1.1'... Line fixing brush 1. 2nd arm, 2゜2'... wire fixing body, 3... return spring,
4... Beth, 5,5'... Stripped field 1st. 2nd arm, 6.6'...covered cut body &
5/l', 67tt... V-shaped cutting blade, 7... Line positioning body, 8, 8'...
・Return spring, 9...Contact cradle, 10...
...Crimp claw crimping body, 10', 10//...
...Inverted V-shaped notch, 11...Continuous contact feed guide plate, 11'...Connection single feed groove, 11
〃...Guide groove, 12...Feed arm,
12'...Feed claw, 12...Shallow groove housing the connecting piece, 13...Feed arm holder. 14...Feeding spring, 15...Connecting piece cut body, 15'...Press protrusion 215...
・Feed groove, 16... Cutting body pressing body, 17...
...Cam pillar drive plate 218... Drive source, 19.
...Connection shaft between drive plate and drive source, 20°20'...
...Arm pressing roller while fixing the line, 22゜22'...
... Line fixing brush 1. 2nd cam pillar, 23°23'...
...The pressing slope, 24...Fixing bolt. 25...Fine adjustment bolt, 25'...Adjustment scale. 26... Arm pressing roller during coating stripping, 27.
... Cam pillar for coating stripping 228 ... Pressing slope, 29 ... Pressing roller of feed arm holder,
30...Contact series feed arm cam column, 3
1... Pressure slope.

Claims (1)

[Claims for Utility Model Registration] A crimp claw crimping body that is driven by one driving source and performs four upward and downward movements, and a cam pillar for fixing the crimp, which is driven in common by the driving source and is provided at the lower end of the pressing bevel metal. , a cam post for stripping the wire and a feed arm cam of the contact series are provided, and pressing rollers pushed by the pressing slopes of the cam post for wire fixing as the wire fixing cam post descends jointly move in opposite directions. The first wire fixing member returns to its original position by the return spring body, fixes the wire to be connected under pressure by the wire fixing body, and releases the first fixing member. A second arm and a first arm for fixing this line. Second
As the cam column for stripping the coating moves downward, the first cam column for fixing the wire is pushed by its suppressing slope. After removing the coating by moving in a direction perpendicular to the direction of movement of the second arm, the first arm for wire fixing is moved. 1. A coating stripping mechanism equipped with a line positioning body and a coating cutting body that returns to its original position by a return spring applied between the second arm and the second arm. The second arm, the button, and the pressure roller pushed by the suppressing slope as the feed arm cam column of the contact series descends, return to the original position by the return spring in the housing, and move in the direction of feeding the contact series to the contact holder. The feed arm of the contact series, which is held by a reciprocating feed arm holder and grips the coupling piece of the contact series and feeds it onto the contact pedestal when it moves toward the contact pedestal, and the metal holder, and each of the above cam pillars. The coating stripping device is characterized in that the starting point of the arm's movement is selected and the wire fixing mechanism, coating stripping mechanism, and contact chain feeding mechanism are driven in a predetermined order by a common drive source. Wire connection machine for contacts with crimp terminals.