JPH07110459B2 - Electric wire cutting and peeling tool replacement method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a stripping length of an electric wire in an automatic cutting machine or the like,
The present invention relates to a method for attaching and removing an electric wire cutting and peeling tool dedicated to each wire size, etc. to a machine drive unit without adjustment.

[Conventional technology]

A conventional device for cutting and peeling an electric wire in an automatic cutting machine or the like generally has a pair of cutting and peeling tools each having a cutting blade and two adjacent peeling blades, and a pair of the cutting and peeling tools. It is composed of a pair of mechanical drive units that hold the electric wires so as to face each other and drive them so as to approach and move away from each other.

In the above cutting and peeling tool, it is necessary to optimally adjust the peeling length of the electric wire that is to be cut and peeled at its end, and the distance between the cutting blade and the peeling blade for each wire size. Therefore, as a method of adjusting this interval,
Spacer replacement method and dial adjustment method are adopted.

In the spacer exchange method, spacers of various thicknesses are prepared in advance, and the spacing between the blades is adjusted by appropriately combining these spacers according to the stripping length and the line size.

In the dial adjustment type, as disclosed in, for example, Japanese Patent Laid-Open No. 61-170214, a screw mechanism is adopted instead of the adjustment by the spacer, whereby a method capable of continuously adjusting the distance between the blades is used. To be

[Problems to be Solved by the Invention]

However, in the conventional spacer replacement method described above,
It is necessary to replace the peeling blade for each peeling length and line size, change to the optimum spacer combination and attach these to the tool block, and at that time, engage the cutting blade and peeling blade. The adjustment requires a high degree of skill, and the adjustment is extremely troublesome.

With the dial adjustment type, adjustment of the distance between the blades is easy, but when exchanging with a different type blade, there is a problem in adjustment when attaching this to a tool block, similar to the case of the spacer exchanging method.

The present invention has been made in view of various problems of the conventional electric wire cutting and peeling tool as described above, and its object is to cut the electric wire for each electric wire peeling length, wire size, etc. in an automatic cutting machine or the like. An object of the present invention is to provide an electric wire cutting and peeling tool exchanging method which makes it possible to specialize the peeling tool and attach the optimum tool for cutting and peeling processing to the machine drive section without adjustment to shorten the setup time.

[Means for Solving the Problems]

Therefore, in the present invention, as a means for solving the above problems, the stripping length of the wire, the wire cutting stripping having a plurality of stripping blades adjacent to the cutting blade according to adjustment items such as the wire size Prepare multiple pairs of tools,
Each of the inner and outer surfaces of the pair of tools are fitted in advance to the pair of mechanical drive units that hold the blades so as to face each other with the electric wire in between and drive so as to approach and separate from each other, and The blades, spacers, and fixed parts are precisely dimensioned and finished, and information about the adjustment items is given to the device that stores the above adjustment items and the corresponding codes, and the codes are discriminated. We adopted the wire cutting and peeling tool replacement method of selecting the tool and replacing the tool.

[Action]

In the tool exchanging method according to the present invention configured as described above, the size of the cutting blade, the peeling blade according to each adjustment item such as the line size and the peeling length with respect to the machine drive unit,
A plurality of types of wire cutting and peeling tool units with different distances between blades are dedicated and prepared in advance.

Each tool unit has high accuracy in the dimensions and finish of the inner and outer surfaces of the mating part, blades, spacers, fixing parts, etc. so that the cutting operation by the opposing blades and the blade when mounting it on the machine drive part becomes the sharpest. It is machine-finished and can be mounted without adjustment.

The plurality of types of tool units discriminate a predetermined unit code corresponding to the data input in the storage device that stores the adjustment items and the codes of the units corresponding to the adjustment items, and the predetermined unit is determined based on the discrimination result. To be selected.

The predetermined tool unit selected in this way is attached to the machine drive without adjustment, and the cutting and peeling work can be immediately performed.

〔Example〕

 Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an electric wire cutting and peeling tool for carrying out the tool changing method according to the present invention and a mechanical portion for fixing the same.

The wire cutting and peeling tool 10 includes a tool block 11 and a spacer 12
A cutting blade 13 and two stripping blades 14 are provided through the blade. The peeling blade 14 is appropriately adjusted by the spacer 12 with respect to the cutting blade 13. Reference numeral 15 is a bolt for tightening the spacer, and 16 is a recess for fixing the tool block 11.

The mechanical drive unit 20 for holding the tool 10 is a holder 21.
It is fitted in the recess 22 provided in the tool block 11, the bolt 23 is inserted into the screw hole 24, and is fixed through the recess 16 of the tool block 11.

As shown in FIG. 2, the electric wire cutting and peeling tool 10 and the machine driving unit 20 are provided with a pair of electric wires X when used.
It is provided so as to face each other across. The tool 10
As described later, a plurality of pairs of the above-mentioned ones are prepared according to adjustment items such as the size of the electric wire and the stripping length.
Further, although not shown in the drawings, the mechanical drive unit 20 is a pair of members that oppose each other by a screw shaft screwed into a screw hole 26 of a protrusion 25 (see FIG. 4 (a)) provided in the lower portion thereof. It is driven so that it can move in and out of the direction.

The cutting blade 13 of the tool 10 cuts the electric wire X at a required length position by driving the mechanical driving unit 20, and at the same time, the coating is cut by a peeling blade 14 provided at an appropriate interval with respect to the cutting blade 13. Be peeled off.

At the time of the above-mentioned cutting and peeling work, as shown in FIG. 3, the cutting blade 13 and the peeling blade 14 must be joined without any gap between the opposing blades. Therefore, in order to join the blades accurately, multiple sets of tools 10
And the mechanical drive portion 20 has respective inner surfaces that fit together,
The dimensions of the outer surface and the main parts that affect the blades such as the blades, spacers, and fixed parts that affect the joining of the blades are accurately finished.

FIGS. 4A and 4B show the shapes of the holder 21, the machine block 20, the tool block 11, the cutting blade 13, the peeling blade 14, and the spacer 12 of the tool 10, respectively.

In (a), the accuracy of the main dimensions of the inner and outer surfaces of the holder 21 is
The order of 0.01-0.05 mm, the finish is a mirror finish (▽
▽▽), and the squareness of horizontal and vertical walls is exactly 90 °
(See symbols a to e in the figure).

Also in (b), the same applies to the dimensional accuracy and finish of the inner and outer surfaces of the tool block 11 (see symbols f to k in the figure).

The blades 13 and 14 in (c) and the spacer 12 in (d) are finished with high accuracy in terms of length, width, thickness, etc. (see symbols 1 to q in the figure).

As described above, using a pair of machine drive units 20 and a plurality of sets of tools 10 that accurately secure the dimensions of each part, finishing accuracy, etc.
The tool changing method according to the present invention is carried out as follows.

As shown in FIG. 5, a computer 30 and a keyboard 31 are prepared. The computer 30 stores in advance the size of the electric wire to be machined, the dimensional data such as the stripping length planned for each size, and the No. of the tool unit to be used according to the combination.

When the data of a specific wire type, size and stripping length (or terminal type) is input from the keyboard 31, the tool unit number that matches the combination is determined, and the determination result is displayed on the display. It

A plurality of tools 10 are prepared on the shelf 40 for each combination of the wire size and the peeling length. Therefore, a pair of tools 10 is selected and taken out from the shelf 40 in accordance with the determination result,
The tool 10 is attached to the machine drive unit 20. Installation is
It is simply performed by fitting the tool 10 into the concave portion 22 of the mechanical drive unit 20 and tightening it with the bolt 23, and there is no need for the adjustment work for accurately joining the blades as in the conventional case.

〔effect〕

As described in detail above, in the present invention, a plurality of pairs of wire cutting and peeling tools are prepared for a pair of machine drive parts, and each set of tools has a different adjustment item such as line size and peeling length. It can be attached to the machine drive unit by specializing it to the machine drive unit, determine the required tool unit number from the storage device that stores the tool unit number given for each adjustment item in advance and select it, and attach it to the machine drive unit. This eliminates the need for adjustment work when exchanging tools, shortens the installation time, and has the advantage of being able to realize the optimum process for high-mix low-volume production.

In the past, a large number of combinations of spacers between blades have been used in the past, but if this is used as a single piece, the accuracy is improved and adjustment for each tool becomes easy.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an electric wire cutting and peeling tool and its mechanical drive unit used for carrying out the tool converting method according to the present invention, FIG. 2 is a plan view of the apparatus of FIG. 1, and FIG. 3 is blade adjustment. FIG. 4 is a diagram for explaining the method, FIG. 4 is a component diagram of each component of the apparatus of FIG. 1, and FIG. 5 is a diagram for explaining the tool changing method. 10 …… Electric wire cutting and peeling tool, 11 …… Tool block, 12…
… Spacer, 13… Cutting blade, 14… Peeling blade, 20… Machine drive, 21… Holder, 22… Recess, 23
...... Bolt, 30 ...... Computer, 40 …… Shelves.

Claims (1)

[Claims] 1. A plurality of pairs of electric wire cutting and peeling tools having a cutting blade and a plurality of peeling blades adjacent to the cutting blade are prepared in accordance with adjustment items such as the peeling length and the wire size of the electric wire. Each of the inner and outer surfaces of a pair of tools are fitted in advance to a pair of mechanical drive units that hold the tools so that the blades face each other with the electric wire in between and approach and move away from each other, and the blades of the tools, Spacer,
The size and finish of the fixed part are finished with high precision, information of the adjustment items is given to the device that stores the above adjustment items and the corresponding codes, and the codes are discriminated, and a pair of tools is selected based on the discrimination result. An electric wire cutting and peeling tool replacement method, characterized in that the tool is replaced with a new one.