WO2018074192A1 - Corrosion inhibitor supply device, and method for producing terminal-equipped wire - Google Patents

Abstract

The purpose of the present invention is to provide a technology suitable for supplying, to a connecting portion between a wire and a terminal in a terminal-equipped wire, a corrosion inhibitor in which a change in phase between solid and liquid or a change in viscosity occurs in accordance with the temperature. This corrosion inhibitor supply device is provided with: a discharge mechanism which includes an accommodation part for accommodating a corrosion inhibitor, and a discharge part for discharging the corrosion inhibitor accommodated in the accommodation part; and a supply unit-heating unit for heating the discharge mechanism. The discharge mechanism further includes a connecting passage which connects the accommodation part and the discharge part. The supply unit-heating unit performs heating while being in contact with the periphery of a portion extending from the connecting passage to the discharge part.

Description

Anticorrosive supply device and method for manufacturing electric wire with terminal

The present invention relates to a technique for performing an anticorrosion treatment by supplying an anticorrosive to a connection portion between a terminal and an electric wire in a terminal-attached electric wire.

Patent Document 1 discloses a technique for supplying a photocurable anticorrosive agent in a fluidized state to a connecting portion between an electric wire and a terminal in an electric wire with terminal.

JP2015-153717A

Incidentally, an anticorrosive agent that causes a phase change between solid-phase liquid phases or a change in viscosity depending on temperature may be used as an anticorrosive agent. When such an anticorrosive agent is used, the risk that the anticorrosive agent is cured during the supply of the anticorrosive agent is increased as compared with the case where a photocurable anticorrosive agent is used. If the anticorrosive agent is cured while the anticorrosive agent is being supplied, the product may be defective because the supplied anticorrosive agent does not spread to a desired range.

Therefore, the present invention provides a technique suitable for supplying an anticorrosive agent that causes a phase change between solid-liquid phases or a change in viscosity depending on the temperature at the connection portion between the wire and the terminal in the electric wire with terminal. The purpose is to do.

In order to solve the above-described problem, an anticorrosive agent supply device according to a first aspect includes a storage unit that stores an anticorrosive agent, and a discharge mechanism that discharges the anticorrosive agent stored in the storage unit. And a heat mechanism capable of heating or cooling the discharge mechanism.

The anticorrosive agent supply apparatus according to a second aspect is the anticorrosive agent supply apparatus according to the first aspect, wherein the discharge mechanism further includes a communication passage that connects the storage part and the discharge part, and the heat The mechanism performs heating or cooling by coming into contact with the periphery of a portion from the communication passage to the discharge portion.

The anticorrosive agent supply device according to the third aspect is the anticorrosive agent supply device according to the first or second aspect, wherein the anticorrosive agent has a viscosity at a temperature in a vehicle use environment and is reduced in viscosity by heating. The heat mechanism can heat the discharge mechanism.

The anticorrosive agent supply apparatus according to a fourth aspect is the anticorrosive agent supply apparatus according to the third aspect, wherein the anticorrosive agent is rapidly changed between a first temperature and a second temperature higher than the first temperature. And the heat mechanism heats the discharge mechanism such that the temperature of the anticorrosive discharged is between the first temperature and the second temperature.

The manufacturing method of the electric wire with a terminal which concerns on a 5th aspect is a manufacturing method of the electric wire with a terminal to which the anticorrosion process was performed to the connection part of an electric wire and a terminal, Comprising: (a) The accommodating part which accommodates an anticorrosive, A step of heating or cooling a discharge mechanism including a discharge unit that discharges the anticorrosive contained in the storage; and (b) supplying the anticorrosive to the connection portion from the heated or cooled discharge mechanism. And a step of performing.

According to the first to fourth aspects, the temperature of the anticorrosive discharged from the discharge mechanism can be adjusted by heating or cooling the discharge mechanism, and the discharged anticorrosive is cured during supply. Can be suppressed. For this reason, it becomes possible for the supplied anticorrosive agent to spread over a desired range, thereby reducing the risk of the product becoming defective. Therefore, the said anticorrosive agent supply apparatus is suitable for supplying the anticorrosive agent in which the phase change between solid-phase liquid phases or the magnitude | size change of a viscosity changes with temperature at the connection part of the electric wire and terminal in an electric wire with a terminal.

Particularly, according to the second aspect, the anticorrosive can be heated or cooled until immediately before being discharged.

Particularly, according to the third aspect, it is possible to provide an anticorrosive agent supply apparatus suitable for an anticorrosive agent whose viscosity is reduced by heating.

In particular, according to the fourth aspect, the anticorrosive agent can be supplied in a state where the viscosity is sufficiently lowered so that the anticorrosive agent can spread and is not excessively reduced.

According to the fifth aspect, since the anticorrosive agent is supplied to the connection portion from the heated or cooled discharge mechanism, the anticorrosive agent is suppressed from being cured during the supply of the anticorrosive agent. For this reason, it becomes possible for the supplied anticorrosive agent to spread over a desired range, thereby reducing the risk of the product becoming defective. Therefore, the manufacturing method of the said electric wire with a terminal is suitable for supplying the anticorrosive which a phase change between solid-phase liquid phases or a change of the magnitude | size of a viscosity changes with temperature to the connection part of the electric wire and terminal in an electric wire with a terminal. .

It is a schematic side view which shows the electric wire with a terminal used as manufacture object. It is a schematic plan view which shows the electric wire with a terminal used as manufacture object. It is a schematic perspective view which shows a terminal. It is a graph showing the relationship between the temperature and viscosity of an anticorrosive. It is a schematic perspective view which shows the anticorrosive agent supply apparatus which concerns on embodiment. It is a schematic side view which shows the anticorrosive agent supply apparatus which concerns on embodiment. It is a partial schematic plan view which shows the anticorrosive agent supply apparatus which concerns on embodiment. It is explanatory drawing which shows a supply part and a detection part. It is a figure explaining the flow of the manufacturing process of the electric wire with a terminal using a corrosion inhibitor supply device. It is explanatory drawing which shows the manufacturing process of an electric wire with a terminal. It is explanatory drawing which shows the manufacturing process of an electric wire with a terminal. It is explanatory drawing which shows the example of the supply position of the anticorrosive with respect to the electric wire with a terminal. It is explanatory drawing which shows another example of the supply position of the anticorrosive with respect to the electric wire with a terminal. It is explanatory drawing which shows the manufacturing process of an electric wire with a terminal. It is explanatory drawing which shows the manufacturing process of an electric wire with a terminal. It is explanatory drawing which shows the manufacturing process of an electric wire with a terminal. It is explanatory drawing which shows the manufacturing process of an electric wire with a terminal. It is explanatory drawing which shows the manufacturing process of an electric wire with a terminal. It is a schematic plan view which shows the anticorrosive agent supply apparatus which concerns on a modification.

{Embodiment}
Hereinafter, the manufacturing method of the anticorrosive agent supply apparatus and electric wire with a terminal concerning an embodiment is explained.

<Wire with terminal>
First, a terminal-attached electric wire to be manufactured will be described with reference to FIGS. 1 to 3. Drawing 1 is an outline side view showing electric wire 10 with a terminal used as manufacture object. FIG. 2 is a schematic plan view showing the terminal-attached electric wire 10 to be manufactured. FIG. 3 is a schematic perspective view showing the terminal 20.

The terminal-attached electric wire 10 includes an electric wire 12, a terminal 20, and an anticorrosion coating 18.

The electric wire 12 includes a core wire 13 and a coating 14 covering the core wire 13. The core wire 13 is a linear conductor, and here, the core wire 13 is formed by twisting a plurality of strands. The coating 14 is made of an insulating material such as resin. The coating 14 is formed, for example, by extrusion-coating a softened resin around the core wire 13.

In addition, a coating 14 having a predetermined length is peeled off from the core wire 13 at the end of the electric wire 12. Thereby, the exposed core wire part 13a which the core wire 13 exposes over predetermined length is provided in the edge part of the electric wire 12. FIG.

The terminal 20 is a member formed by, for example, pressing a metal plate material that is a conductive plate material, and is connected to a mating connection portion 28 that directly contacts a mating conductor C as a mating electrical connection element and its mating member. The electric wire connection part 22 connected with the side connection part 28 is provided.

The electric wire connecting part 22 includes a distal end side connecting part 23, a core wire crimping part 24, an intermediate coupling part 25 and a covering crimping part 26. The distal end side connecting portion 23, the core wire crimping portion 24, the intermediate connecting portion 25, and the covering crimping portion 26 are formed in a line along the linear direction. In the present embodiment, in the present terminal 20, the counterpart connection portion 28 side is described as the distal end side of the terminal 20, and the wire connection portion 22 side is described as the proximal end side of the terminal 20.

The covering crimping part 26 is a part that is crimped to the end of the covering 14 of the electric wire 12 by being caulked. The covering crimping portion 26 includes a bottom plate portion 26a and a pair of covering crimping pieces 26b that are erected on both sides of the bottom plate portion 26a and face each other. In the example shown in FIG. 3, the pair of coated crimping pieces 26 b are erected vertically to the bottom plate portion 26 a, but this is not always necessary. For example, of the pair of coated crimping pieces 26b, the edge portion on the distal end side of the terminal 20 is formed in a shape inclined toward the proximal end side of the terminal 20 toward the distal end side in the standing direction of each coated crimped piece 26b. It is also possible.

The intermediate connecting part 25 is a part that connects the coated crimping part 26 and the core crimping part 24. The intermediate connecting portion 25 includes a bottom plate portion 25a and a pair of side wall portions 25b that are erected on both sides of the bottom plate portion 25a and face each other.

The core wire crimping portion 24 is a portion to be crimped to the exposed core wire portion 13a by being caulked. The core wire crimping portion 24 includes a bottom plate portion 24a and a pair of core wire crimping pieces 24b that are erected on both sides of the bottom plate portion 24a and face each other. In the present embodiment, the description will be made assuming that the direction in which the pair of core wire crimping pieces 24 b face each other is the width direction of the terminal 20. In addition, a description will be given assuming that the direction in which the pair of core wire crimping pieces 24 b is erected with respect to the bottom plate portion 24 a is the height direction of the terminal 20.

The front end side connecting portion 23 is a portion connecting the core wire crimping portion 24 and the mating side connecting portion 28. The distal end side connecting portion 23 includes a bottom plate portion 23a and a pair of side wall portions 23b that are erected on both sides of the bottom plate portion 23a and face each other.

Each bottom plate part 23a, 24a, 25a, 26a in the electric wire connection part 22 is formed in the shape which continues in plate shape as a whole. Moreover, the side wall part 23b, the core wire crimping piece 24b, the side wall part 25b, and the covering crimping piece 26b on one side in the width direction of the electric wire connection part 22 are formed in a shape that is continuous in a plate shape as a whole. Similarly, the side wall part 23b, the core wire crimping piece 24b, the side wall part 25b, and the covering crimping piece 26b on the other side in the width direction in the electric wire connection part 22 are also formed in a shape that is continuous in a plate shape as a whole. Further, the coated crimping piece 26b of the coated crimping portion 26 and the core crimping piece 24b of the core wire crimping portion 24 that are caulked (bent) portions with respect to the electric wire 12 are respectively connected to the intermediate coupling portion 25 and the distal end side coupling portion 23. It is formed longer in the height direction than the side walls 25b, 23b.

Further, the counterpart connection portion 28 is a portion (terminal connection portion) that is in direct contact with the counterpart conductor C as the counterpart electrical connection element and connected to the counterpart conductor C. Here, the counterpart connection portion 28 is a cylindrical portion in which a terminal insertion hole 28h, which is a hole into which the counterpart terminal C1 is fitted, is formed. In the present embodiment, the mating connection portion 28 is formed in a rectangular tube shape, and a contact piece 29 that contacts the mating terminal C1 and elastically deforms is provided inside.

Here, an example in which the mating side connection portion 28 is formed in a cylindrical terminal shape (so-called female terminal shape) will be described. However, the mating side connection portion 28 has an elongated rod-like or elongated plate-like terminal shape (so-called male terminal). (Shape) may be formed. Moreover, the other party connection part 28 may be formed in the shape which can be bolted, ie, the shape by which the through-hole was formed in the flat main body part.

The terminal 20 is connected to the end of the electric wire 12 as follows. That is, the end portion of the coating 14 is positioned between the pair of coated crimping pieces 26 b in the coated crimping portion 26, and the exposed core wire portion 13 a is positioned between the pair of core crimping pieces 24 b in the core wire crimping portion 24. The In this state, the coated crimping piece 26b of the coated crimping portion 26 is bent (caulked) toward the coating 14 (inside) on the bottom plate portion 26a. Furthermore, the core wire crimping piece 24b of the core wire crimping portion 24 is bent (caulked) to the exposed core wire portion 13a side (inner side) on the bottom plate portion 24a. Thereby, in the covering crimping portion 26, the bottom plate portion 26a and the two covering crimping pieces 26b are held in a state where they are crimped to the end portion of the covering 14, and in the core wire crimping portion 24, the bottom plate portion 24a and the two core wires are held. The crimping piece 24b is held in a state of being crimped to the exposed core part 13a. At this time, the front end side edge portion of the covering 14 is located at the position of the intermediate connecting portion 25, and a part thereof is exposed between the side wall portions 25 b. Similarly, the distal end side edge portion of the exposed core portion 13a is located at the position of the distal end side connecting portion 23, and a part thereof is exposed between the side wall portions 23b.

Here, the core wire 13 (element wire) of the electric wire 12 and the terminal 20 are made of different kinds of metals. For example, the core wire 13 is made of aluminum or an aluminum alloy containing aluminum as a main component. On the other hand, the terminal 20 is made of copper or a copper alloy containing copper as a main component (brass, etc.), or tin (Sn) plating on these members, or silver (Ag), copper (Cu), bismuth on tin. This is a member plated with a tin alloy to which (Bi) or the like is added. Therefore, the dissimilar metal is in contact with the connecting portion between the core wire 13 and the terminal 20, and when an electrolyte such as salt water adheres to this portion, dissimilar metal contact corrosion may occur.

Moreover, in the connection part of the terminal 20 and the electric wire 12, the exposed core part 13a is exposed outside at the following parts. That is, the base end portion of the exposed core wire portion 13a is exposed between the core wire crimp portion 24 and the coating crimp portion 26. Moreover, the front-end | tip part of the exposed core wire part 13a is exposed between the core wire crimping part 24 and the other party connection part 28. FIG. Further, a gap may be generated between the tip ends of the pair of core wire crimping pieces 24b in a state where the pair of core wire crimping pieces 24b of the core wire crimping portion 24 is caulked to the exposed core wire crimping portion 13a. In between, the intermediate part of the exposed core part 13a can be exposed.

Therefore, the anticorrosive 18B in a fluidized state is between the proximal end side portion Q1 exposed to the covering crimping portion 26 with respect to the core wire crimping portion 24 in the exposed core wire portion 13a and the pair of core wire crimping pieces 24b of the core wire crimping portion 24. Of the exposed core wire portion 13a and the distal end side portion Q3 of the exposed core wire portion 13a exposed to the opposite side of the coated crimp portion 26 with respect to the core wire crimp portion 24. Then, the anticorrosive 18B in a fluid state spreads on the surface of each of the portions Q1, Q2, and Q3 to form a coating, and the coating is cured (in this case, the viscosity is increased) to form the anticorrosion coating 18. Then, since each of those portions Q1, Q2, and Q3 is covered with the anticorrosion coating 18, even if the electrolytic solution adheres to the connection portion between the terminal 20 and the electric wire 12, the electrolytic solution remains on the exposed core portion 13a. Do not touch. For this reason, it will be suppressed that it will be in the state where electrolyte solution adhered to a dissimilar metal, and, therefore, dissimilar metal contact corrosion is controlled. The anticorrosion coating 18 is transparent or translucent, but this is not essential. Further, the anticorrosion coating 18 may be colored or colorless.

But in order to suppress the enlargement of the connection part of the terminal 20 and the electric wire 12, and to suppress the usage-amount of the anticorrosive 18B, it is possible to supply a trace amount anticorrosive 18B as widely as possible. preferable. Therefore, here, when the fluidized anticorrosive 18B is supplied to each of the portions Q1 and Q2Q3, the fluidized anticorrosive 18B is supplied in a dotted manner in at least one of those portions. That is, the anticorrosive 18B in a fluid state is not continuously supplied, but is intermittently and partially supplied onto each of the parts Q1, Q2, and Q3. The anticorrosive agent 18B in a fluid state supplied in the form of dots spreads on the surface of the exposed core portion 13a according to its own viscosity, the wettability of the anticorrosive agent 18B with respect to the exposed core portion 13a, and the like. And the anticorrosive 18B supplied in the shape of a dot in a different location connects, and forms the continuous film. When the coating is cured (viscosity is increased), the anticorrosion coating 18 can be formed on portions Q1, Q2, and Q3 exposed from the connection portion of the exposed core portion 13a.

In addition, the anticorrosive 18B may also spread on the surface of the wire connection part 22 around Q1, Q2, and Q3. But it is preferable that the area | region where the anticorrosive 18B spreads on the surface of the electric wire connection part 22 is as small as possible.

Here, the description will be made assuming that the anticorrosive 18B that changes in the magnitude of the viscosity depending on the temperature is used as the anticorrosive 18B. In particular, here, the description will be made assuming that the anticorrosive 18B whose viscosity is sufficiently lowered to be spread at about 137 degrees Celsius is used. FIG. 4 is a graph showing the relationship between temperature and viscosity in the anticorrosive 18B. As shown in FIG. 4, the viscosity of the anticorrosive 18B rapidly decreases between 120 degrees Celsius (first temperature) and 137 degrees Celsius (second temperature). More specifically, the curve in the region between 120 degrees Celsius and 137 degrees Celsius (the degree of viscosity reduction per unit temperature rise) is less than 120 degrees Celsius or greater than 137 degrees Celsius. It is larger than the gradient (the degree of viscosity reduction per unit temperature rise).

As described above, when the anticorrosive agent 18B that causes a change in the magnitude of viscosity or a phase change between the solid and liquid phases is used as the anticorrosive agent 18B, the anticorrosion during the supply compared to the photocurable anticorrosive 18B or the like. The agent 18B tends to cure or increase in viscosity. In particular, when the anticorrosive agent 18B is supplied in the form of dots as described above, the temperature of the anticorrosive agent 18B is likely to change, and thus the anticorrosive agent 18B is likely to be cured or increased in viscosity during supply. And if the anticorrosive 18B hardens | cures or a viscosity rise during supply, it will become difficult to form the continuous coating by connecting the anticorrosive 18B supplied in the point form in a different location. Therefore, the anticorrosive agent supply apparatus according to the present embodiment makes it possible to obtain the terminal-attached electric wire 10 on which the anticorrosion coating 18 is well formed by making the anticorrosive agent 18B difficult to cure or increase in viscosity during supply. It has become.

<Corrosion preventive supply device>
Next, the anticorrosive agent supply apparatus will be described with reference to FIGS. FIG. 5 is a schematic perspective view showing the anticorrosive agent supply apparatus 30 according to the embodiment. FIG. 6 is a schematic side view showing the anticorrosive supply device 30 according to the embodiment. FIG. 7 is a partial schematic plan view showing the anticorrosive agent supply apparatus 30 according to the embodiment. FIG. 8 is an explanatory diagram showing the supply unit 40 and the detection unit 100.

The anticorrosive agent supply device 30 includes a first mechanism 32, a second mechanism 50, and an electric wire transport unit 90. Furthermore, the anticorrosive agent supply device 30 includes a control unit 110 that performs operation control of each of the first mechanism 32, the second mechanism 50, and the electric wire conveyance unit 90.

Hereinafter, in the anticorrosive supply device 30, the direction in which the plurality of electric wires 10 with a terminal are conveyed by the electric wire conveyance unit 90 is defined as an x-axis direction. At this time, the electric wire with terminal 10 extends in a direction orthogonal to the x-axis direction, and this direction is defined as a y-axis direction. A direction orthogonal to the x-axis direction and the y-axis direction is taken as a z-axis direction. Here, the z-axis direction is a direction along the vertical direction.

The first mechanism 32 includes a conveyance chuck 34, an imaging unit 38, and a supply unit 40, which are movable together. Here, the 1st mechanism 32 contains the y-axis direction moving mechanism 33 provided so that the said each part was integrally movable to a y-axis direction. Accordingly, the transport chuck portion 34, the imaging portion 38, and the supply portion 40 are connected to the y-axis direction moving mechanism 33. The conveyance chuck unit 34, the imaging unit 38, and the supply unit 40 are arranged in this order along the y-axis direction.

The conveyance chuck portion 34 is a portion that transfers the electric wire 12 between the electric wire conveyance portion 90 and an electric wire setting portion 52 described later. Here, the conveyance chuck portion 34 includes a chuck portion 35 and a z-axis direction moving mechanism 36. A z-axis direction moving mechanism 36 is connected to the y-axis direction moving mechanism 33, and a chuck portion 35 is provided at the tip of the z-axis direction moving mechanism 36.

Here, the z-axis direction moving mechanism 36 is formed so that the chuck portion 35 can be moved to three different positions along the z-axis direction. The first position among the three positions is a standard position of the transport chuck section 34. When the transport chuck section 34 does not operate, the chuck section 35 is positioned at the first position. Also, when the y-axis direction moving mechanism 33 operates, the chuck portion 35 is located at the first position, and the y-axis direction moving mechanism 33 prevents the moving chuck portion 35 from interfering with other members. Yes. Of the three positions, the second position is a position when the chuck portion 35 delivers the electric wire 12 to and from a covering chuck portion 58 of the electric wire setting portion 52 described later. The third position among the three positions is a position when the chuck unit 35 delivers the electric wire 12 to and from the electric wire transport unit 90. Here, the first position, the second position, and the third position are set in this order from the positive side to the negative side along the z-axis direction. That is, here, the electric wire 12 set in the electric wire setting unit 52 is positioned higher in the z-axis direction than the electric wire 12 being conveyed by the electric wire conveyance unit 90.

Here, the chuck portion 35 includes a pair of sandwiching claws 35a and a drive unit (not shown) that drives the pair of sandwiching claws 35a to open and close, and is formed so that the electric wire 12 can be chucked. The pair of sandwiching claws 35 a are formed in a shape in which an intermediate portion is recessed, and the wire 12 can be sandwiched at two different locations along the extending direction of the wire 12. Thereby, rotation of the electric wire 12 when the electric wire 12 is chucked by the chuck portion 35 is suppressed.

The electric wire 12 is transferred between the electric wire conveyance unit 90 or the electric wire setting unit 52 as follows using the conveyance chuck unit 34. That is, the y-axis direction moving mechanism 33 moves the conveyance chuck unit 34 along the y-axis direction to a position corresponding to the electric wire conveyance unit 90 or the electric wire set unit 52. In this state, the z-axis direction moving mechanism 36 moves the chuck portion 35 to a position corresponding to the electric wire 12 along the z-axis direction. In this state, the chuck unit 35 is driven to open and close, so that the electric wire 12 is delivered to and from the electric wire transport unit 90 or the electric wire set unit 52.

The imaging part 38 is provided so that the connection part of the electric wire 10 with a terminal can be imaged. Here, the imaging unit 38 is an imaging camera configured by a CCD camera or the like. As the imaging unit 38, a two-dimensional camera may be used, or a stereo camera may be used. Here, the former example will be described. Here, the imaging unit 38 moves to a position corresponding to the wire setting unit 52 along the y-axis direction by the y-axis direction moving mechanism 33. In this state, the imaging unit 38 images the terminal-attached electric wire 10 set in the electric wire setting unit 52, whereby the connection portion is imaged.

The supply part 40 is provided so that the anticorrosive 18B can be supplied. The supply unit 40 includes a discharge mechanism 41 and a discharge mechanism moving mechanism 46. Further, here, a detection unit 100 and a supply unit heating unit 82 are provided around the supply unit 40.

The discharge mechanism 41 is a part that stores the anticorrosive 18B and discharges the stored anticorrosive 18B. The discharge mechanism 41 includes a discharge unit 42 and a storage unit 44.

The discharge part 42 is a part from which the anticorrosive 18B is discharged. Here, a description will be given assuming that a dispenser is provided as the discharge unit 42. Here, the dispenser can discharge a certain amount of the anticorrosive 18B with pressurization by air. In particular, here, the dispenser can eject the anticorrosive 18B drop by drop. The size of the droplets (grains) of the discharged anticorrosive 18B is not particularly limited, but is preferably smaller than the width dimension of the terminal 20. The size of the droplet of the anticorrosive 18B to be discharged is determined by, for example, the viscosity of the anticorrosive 18B, the size of the discharge port of the discharge unit 42, the degree of pressurization, and the like.

The accommodating portion 44 is a portion that is formed in a cylindrical shape and accommodates the anticorrosive 18B that is discharged by the discharge portion 42. The accommodating portion 44 and the discharge portion 42 are communicated with each other through a communication passage 45. Accordingly, here, the anticorrosive 18B accommodated in the accommodating portion 44 is sent to the discharge portion 42 through the communication passage 45, and is pressurized and discharged by the discharge portion 42.

The discharge mechanism moving mechanism 46 is provided so that the discharge mechanism 41 can be moved. Here, the discharge mechanism moving mechanism 46 includes an x-axis direction discharge mechanism moving mechanism that moves the discharge mechanism 41 along the x-axis direction, and a y-axis direction discharge mechanism movement mechanism that moves the discharge mechanism 41 along the y-axis direction. Including. The discharge mechanism moving mechanism 46 adjusts the position of the discharge position when discharging the anticorrosive 18B in a dot shape. Therefore, the discharge mechanism moving mechanism 46 only needs to be able to move the discharge mechanism 41 within a narrow range that can cover the connection portion. For example, the movable range of the x-axis direction discharge mechanism moving mechanism may be approximately the same as the width dimension of the terminal 20. Further, for example, the movable range of the y-axis direction discharge mechanism moving mechanism may be approximately the same as the dimension from the distal end side connecting portion 23 to the cover crimping portion 26 in the terminal 20, compared with the y-axis direction moving mechanism 33. The movable range is narrow.

The detection unit 100 is provided so as to be able to detect the anticorrosive 18B discharged by the discharge unit 42. In the example illustrated in FIG. 8, the detection unit 100 includes an optical sensor having a light projecting unit 102 and a light receiving unit 104. The detection unit 100 is provided so as to be able to detect a drop of the anticorrosive agent 18B that has dropped in the air after the droplet of the anticorrosive agent 18B is discharged from the discharge unit 42 and adheres to the connection portion. Thereby, the detection part 100 can detect the anticorrosive 18B discharged from the discharge part 42 drop by drop.

The supply part heating part 82 is provided so that the supply part 40 can be heated. The supply unit heating unit 82 is an example of a heat mechanism that heats the discharge mechanism 41. Here, the supply part heating part 82 is comprised with a heater etc., is contact | abutted to the part containing the part from the communication channel | path 45 to the discharge part 42, and heats the said contact part. The supply unit heating unit 82 may be controlled such that the heating temperature can be adjusted in a plurality of stages, or only on / off switching may be controlled. Here, the supply part heating part 82 heats the supply part 40 to such an extent that the viscosity can be lowered to such an extent that the discharge part 42 can discharge the viscous anticorrosive 18B one by one.

As described above, the anticorrosive 18B can sufficiently spread along the connection portion at about 137 degrees Celsius. At this time, it is preferable that the supply unit heating unit 82 heats the supply unit 40 at a temperature slightly lower than 137 degrees Celsius. For example, here, the supply unit heating unit 82 heats the supply unit 40 so that the temperature of the anticorrosive 18B immediately before discharge becomes a temperature (130 degrees) between the first temperature and the second temperature. This is because when the supply unit 40 is heated at a temperature higher than the second temperature, the viscosity of the anticorrosive agent 18B becomes too low, making it difficult to control the discharge amount and the like. In addition, if the supply unit 40 is heated at a temperature lower than the first temperature, it takes time to heat the anticorrosive 18B to a temperature that can be spread by the heated terminal 20 after supply, or try to shorten this time. This is because it is necessary to increase the temperature of the terminal 20 heated by the terminal heating unit 84, and the risk of damaging the electric wire 12 is increased.

The second mechanism 50 is a portion that does not move integrally with the first mechanism 32. Here, the second mechanism 50 includes an electric wire setting unit 52, a terminal heating unit 84, and a suction mechanism 70.

The electric wire set part 52 is a part which fixes the electric wire 10 with a terminal in a supply position in order to supply the anticorrosive 18B to a connection part. Here, the electric wire set part 52 includes a fixing chuck part 53, a presser part 60, and a support part 68.

The fixing chuck portion 53 is provided so that the terminal-attached electric wire 10 can be chucked. Here, the fixing chuck portion 53 includes a terminal chuck portion 54 and a covering chuck portion 58.

The terminal chuck portion 54 is a portion that chucks the terminal 20 in the terminal-attached electric wire 10. Here, the terminal chuck portion 54 includes a mating connection portion chuck portion 55 and a wire connection portion chuck portion 56. The terminal chuck portion 54 is an example of a heat exchange contact portion that exchanges heat with the terminal 20.

The mating side connection portion chuck portion 55 is provided so that the mating side connection portion 28 of the terminals 20 in the terminal-attached electric wire 10 at the supply position can be chucked. Here, the counterpart connection portion chuck portion 55 is provided so as to be able to chuck a portion of the counterpart connection portion 28 located on the proximal end side of the terminal 20. The mating connector chuck 55 includes a pair of clamping claws 55a and an opening / closing drive (not shown) that is configured by a cylinder or the like and that opens and closes the pair of clamping claws 55a. Here, the pair of clamping claws 55a are driven to open and close by moving closer to and away from each other along the x-axis direction. Accordingly, here, the pair of clamping claws 55a chuck the side surface of the terminal 20 with the terminal 20 facing upward. The mating side connection portion chuck portion 55 is an example of a mating side connection portion abutting portion.

The wire connection portion chuck portion 56 is provided so that the connection portion of the terminals 20 in the terminal-attached electric wire 10 at the supply position can be chucked. Here, the wire connection portion chuck portion 56 is provided so that the core wire crimping portion 24 can be chucked. The wire connection portion chuck portion 56 includes a pair of sandwiching claws 56a and an opening / closing drive portion (not shown) that is configured by a cylinder or the like and that opens and closes the pair of sandwiching claws 56a. Here, the pair of clamping claws 56a are driven to open and close by approaching and separating from each other along the x-axis direction. Accordingly, here, the pair of clamping claws 56 a chucks the side surface of the terminal 20 with the terminal 20 facing upward. The clamping claw 56a has a tip tapered toward the terminal 20, and is formed so as not to chuck a portion other than the core wire crimping portion 24 as much as possible. In particular, the terminal 20 may have a shape in which the core wire crimping portion 24 is recessed inward along the width direction as compared with the intermediate coupling portion 25 and the distal end side coupling portion 23 positioned next to each other. Even in this case, since the tip of the clamping claw 56a is tapered toward the terminal 20, when the clamping claw 56a chucks the core crimping portion 24, the intermediate coupling portion 25 and the distal end side coupling portion 23 are obstructed. Is suppressed. The wire connection portion chuck portion 56 is an example of a wire connection portion contact portion.

The covering chuck portion 58 is provided so that the covering 14 of the electric wire 12 in the electric wire with terminal 10 at the supply position can be chucked. The covering chuck portion 58 includes a pair of sandwiching claws 58a and an opening / closing drive unit (not shown) that is configured by a cylinder or the like and that opens and closes the pair of sandwiching claws 58a. Here, the covering chuck portion 58 delivers the electric wire 12 to and from the conveying chuck portion 34. The sandwiching claw 58 a of the covering chuck portion 58 is formed so as to fit in the recess of the sandwiching claw 35 a of the transport chuck portion 34. Here, the pair of clamping claws 58a are driven to open and close by approaching and separating from each other along the x-axis direction. Accordingly, here, the pair of clamping claws 58a chuck the coating 14 from the side.

The holding portion 60 is a portion that holds the terminal-attached electric wire 10 at the supply position from above. Here, the presser part 60 includes a terminal presser part 61 and a covering presser part 64.

The terminal pressing part 61 is a part that presses the terminal 20 of the terminal-attached electric wire 10 at the supply position from above. Here, the terminal pressing portion 61 includes a terminal pressing piece 62 and a terminal pressing piece moving mechanism 63.

The terminal holding piece 62 can hold the upper surface of the terminal 20. Here, the terminal pressing piece 62 is formed in a flat plate shape and presses the upper surface of the mating connection portion 28. The terminal presser piece 62 can be reciprocated between the terminal 20 presser position and the retracted position by the terminal presser piece moving mechanism 63.

The terminal presser piece moving mechanism 63 includes a link mechanism 63a, a fixing member 63d, and a drive unit 63e. The link mechanism 63a includes a rod-shaped link member 63b and a triangular link member 63c. One end of the rod-shaped link member 63b is pivotally supported by the terminal holding portion 61 so as to be rotatable relative to the x axis, and the other end is pivotally supported by the fixing member 63d so as to be rotatable around the x axis. The triangular link member 63c is pivotally supported by the terminal retainer 61, the fixing member 63d, and the drive unit 63e so that the apex portions can rotate around the x axis. The drive part 63e is comprised, for example with a cylinder etc., and reciprocates the connection part with the triangular link member 63c between 2 points | pieces (here two points away along the z-axis direction).

The drive part 63e reciprocates the connecting portion with the triangular link member 63c between two points, whereby each link member 63b, 63c rotates, and the terminal presser piece 62 moves between the terminal presser position and the retracted position. Move back and forth. That is, the state in which the drive part 63e has moved the connecting portion with the triangular link member 63c to one of the two points is the state indicated by the solid line in FIG. It is a state located in. Further, the state in which the drive part 63e has moved the connecting portion with the triangular link member 63c to the other of the two points is the state indicated by the phantom line (two-dot chain line) in FIG. In this state, the piece 62 is located at the retracted position.

The covering presser portion 64 is a portion that presses the terminal 20 of the terminal-attached electric wire 10 at the supply position from above. Here, the covering presser portion 64 includes a covering presser piece 65 and a covering presser piece moving mechanism 66.

The covering presser piece 65 is formed in a flat plate shape, and is formed in a shape in which the elongated portion 65b extends from one corner of the rectangular portion 65a. Here, a part of the rectangular portion 65 a is pivotally supported by the covering presser piece moving mechanism 66.

The covering presser piece moving mechanism 66 includes a z-axis rotation mechanism and a z-axis direction moving mechanism. The z-axis rotation mechanism is provided so that the covering presser piece 65 can rotate around the z-axis around the shaft support portion. Accordingly, the cover pressing piece 65 can be moved between the cover pressing position where the cover pressing piece 65 overlaps the cover 14 at the supply position and the retracted position where it does not overlap with the cover 14 at the supply position in plan view. The z-axis direction moving mechanism is provided so that the covering presser piece 65 can be moved along the z-axis direction. Thereby, the cover presser piece 65 can be moved between the cover presser position where the cover 14 at the supply position can be pressed and the retracted position away from the cover 14 at the supply position in a side view.

The support portion 68 is a portion that supports the terminal 20 of the terminal-attached electric wire 10 at the supply position from below. Here, the support part 68 is supporting the other party connection part 28 of the terminal 20 of the electric wire 10 with a terminal in a supply position from the downward direction. Here, the support portion 68 is formed in a flat plate shape. The main surface of the support portion 68 faces the y-axis direction. The terminal 20 is supported on the side surface of the support portion 68. For example, the support portion 68 may be provided so that its position can be adjusted in the z-axis direction. Thereby, the space | interval of the supply part 40 and connection part along a z-axis direction can be closely approached with a fixed value with respect to the terminal 20 from which a magnitude | size differs.

The terminal heating section 84 is provided so that the terminal chuck section 54 can be heated. The terminal heating unit 84 is an example of a thermal mechanism. Here, the terminal heating unit 84 is provided so as to be able to heat the pair of clamping claws 55a of the mating connection portion chuck portion 55 and the pair of clamping claws 56a of the wire connection portion chuck portion 56, respectively. For example, the terminal heating unit 84 is configured by a heater or the like, and is incorporated in each of the holding claws 55a and 56a. The terminal heating unit 84 may be controlled such that the heating temperature can be adjusted in a plurality of stages, or only on / off switching may be controlled. Here, the terminal heating section 84 heats the terminal chuck section 54 so that the viscosity can be lowered to such an extent that it can be sufficiently spread when the anticorrosive 18B having viscosity adheres to the connection portion. ing.

As described above, here, as the anticorrosive 18B, the description will be made assuming that the anticorrosive 18B whose viscosity is sufficiently lowered to be spread at about 137 degrees Celsius is used. In particular, here, in the graph showing the relationship between the temperature and the viscosity of the anticorrosive 18B, the slope of the curve between 120 degrees Celsius and 137 degrees Celsius is smaller than 120 degrees Celsius or larger than 137 degrees Celsius. Greater than the slope of the curve.

In this case, the terminal 20 is heated so that the temperature immediately before the anticorrosive agent 18B is supplied (hereinafter referred to as a desired temperature) is higher than the temperature at which the viscosity of the anticorrosive agent 18B sufficiently decreases. It is preferable. Thereby, before the anticorrosive 18B spreads sufficiently, it can suppress that the viscosity of the anticorrosive 18B rises and the situation where the anticorrosive 18B cannot fully spread arises. For example, the desired ultimate temperature of the terminal 20 is set to 150 degrees Celsius to 170 degrees Celsius. However, the desired ultimate temperature of the terminal 20 is not limited to the above. The desired ultimate temperature of the terminal 20 is experimental and empirical based on the temperature of the anticorrosive 18B immediately before supply, the heating time of the terminal 20, the thermal conductivity of each part of the anticorrosive 18B, the terminal 20, and the electric wire 12 and the melting point. It is a value set to. Here, since aluminum is used as the core wire and the material, the desired ultimate temperature of the terminal 20 is preferably set to 200 degrees Celsius or less.

The terminal heating section 84 that heats the terminal chuck section 54 is preferably heated at a temperature higher than the desired temperature reached by the terminal 20. Thereby, the terminal 20 can be heated to desired desired temperature in a short time. Here, the terminal heating section 84 heats the terminal chuck section 54 at 360 degrees Celsius. However, the heating temperature of the terminal heating section is not limited to the above. The heating temperature of the terminal heating unit 84 is a value that is set experimentally and empirically based on the desired ultimate temperature of the terminal 20 and the conditions for determining the desired ultimate temperature of the terminal 20. The terminal heating unit 84 is provided with a part for heating the mating connection part chuck part 55 and a part for heating the wire connection part chuck part 56, and heats them at different temperatures. Also good. In this case, the mating connector chuck 55 may be heated at a high temperature and the wire connector chuck 56 may be heated at a low temperature, or vice versa.

It is preferable that the counterpart connection portion chuck portion 55 and the wire connection portion chuck portion 56 heated by the terminal heating portion 84 are formed of a member having good thermal conductivity, such as metal.

The suction mechanism 70 sucks the surplus of the anticorrosive 18B supplied to the connection part. The suction mechanism 70 includes a suction part 72 and a suction part moving mechanism (not shown).

The suction part 72 is a part that sucks an excess of the anticorrosive 18B. Here, the suction portion 72 includes a suction body portion 73 including a suction port 73a and a suction contact portion 77 provided in the suction port 73a.

The suction main body 73 is formed in a cylindrical shape, for example, and both ends are open. One of the openings at both ends of the suction body 73 forms a suction port 73a. The suction port 73a faces upward. Since the suction main body 73 is located below the connection portion, the suction port 73a faces the connection portion. Therefore, here, the suction part 72 sucks the surplus of the anticorrosive 18B from below the connection part. A suction drive unit 75 is connected to the suction body 73. The suction drive unit 75 is connected to the suction body unit 73 via the pipe 76. At this time, the pipe 76 is connected to an opening formed on the side surface of the suction main body 73. The opening on the side surface communicates with a passage connecting both end openings of the suction main body 73. Here, compressed air is sent toward the suction main body 73 by the suction drive unit 75. The compressed air is discharged from the pipe 76 toward the other of the openings at both ends of the suction main body 73, that is, toward the opening facing downward. Due to the influence of the flow of the compressed air, the surplus of the anticorrosive 18B in the vicinity of the suction port 73a is sucked into the suction body 73. The surplus of the anticorrosive 18B sucked into the suction main body 73 from the suction port 73a is discharged downward from the opening facing downward. A collection unit 120 that collects the excess of the discharged anticorrosive 18B may be provided below the opening facing downward. The surplus of the anticorrosive 18B collected by the collection unit 120 may be discarded or reused.

The suction body part 73 is heated by the suction body part heating part 86. Here, a heater that abuts on and heats the suction main body 73 as the suction main body heating section 86 is provided. For example, a rod-shaped heater is embedded on the outer peripheral side of the cylindrical portion of the suction main body 73. The suction main body 73 is heated by the suction main body heating section 86, so that the excess portion of the anticorrosive 18 </ b> B sucked into the suction main body 73 becomes difficult to stay on the inner peripheral surface of the suction main body 73, It becomes easy to discharge downward from the opening that faces.

The suction contact portion 77 is a portion that contacts the terminal 20. Here, the suction contact portion 77 contacts the lower surface of the electric wire 12 holding portion, that is, at least a part of the lower surface of the bottom plate portion. In particular, here, the suction contact portion 77 is provided so as to contact a portion including the lower surface of the bottom plate portion. The suction contact portion 77 is formed in a leaf spring shape. The suction contact portion 77 is formed in a curved surface shape in which a part of a plane protrudes in the z-axis direction. The suction contact portion 77 is provided so as to be elastically deformable in the z-axis direction. The suction contact portion 77 is provided above the suction port 73a so as to protrude in the z-axis direction with respect to the suction port 73a.

The suction body part 73 heated by the suction body part heating part 86 and the suction contact part 77 attached to the suction body part 73 and contacting the terminal 20 are formed of a member having good thermal conductivity such as metal. It is preferable.

The suction part moving mechanism reciprocates the suction part 72 along the z-axis direction. For example, when the suction part moving mechanism is not driven, the suction part 72 is located at a position where the suction contact part 77 is below the terminal 20 and does not contact the terminal 20. Then, when the surplus of the anticorrosive 18B supplied to the connection portion is sucked, the suction portion 72 is positioned at a position where the suction contact portion 77 contacts the lower side of the terminal 20 by driving the suction portion moving mechanism. To do. Accordingly, here, the suction part moving mechanism reciprocates the suction part 72 between the two points.

The electric wire conveyance unit 90 conveys the electric wires 12 arranged in the x-axis direction in this direction. Here, the electric wire conveyance unit 90 includes an electric wire support portion 92 and an electric wire support portion moving mechanism 94.

The electric wire support portion 92 can be supported in a state where a plurality of electric wires 12 extending in parallel with each other in the y-axis direction are arranged in the x-axis direction. Here, as the wire support portion 92, a set bar 93 having a support block 93a formed in a long bar shape and a plurality of pairs of support claws 93b provided on one surface of the support block 93a is used. Each pair of support claws 93b is formed so that the electric wire 12 can be clamped in a posture in which the electric wire 12 extends in a direction intersecting the longitudinal direction of the support block 93a. A plurality of pairs of support claws 93b are arranged in the longitudinal direction of the support block 93a. The set bar 93 is conveyed in the x-axis direction such that the longitudinal direction of the support block 93a is along the x-axis direction. Each pair of support claws 93 b is formed in a shape that can be received in the recess of the chuck portion 35 in a state where the longitudinal direction of the support block 93 a is along the x-axis direction. Therefore, the chuck portion 35 can sandwich the front and rear portions along the y-axis direction with respect to the portion sandwiched between the pair of support claws 93b. The support claw 93b grips the electric wire 12 by an elastic force. More specifically, the support claw 93b is provided to be openable and closable by pressing the electric wire 12 along a standing direction (here, the z-axis direction) with respect to the support block 93a.

The electric wire support part moving mechanism 94 conveys the set bar 93. Here, one end in the extending direction of the link mechanism 94a capable of bending deformation is connected to a member (not shown) that supports the set bar 93. The other end of the link mechanism 94a is connected to a fixed frame (not shown). One end and the other end of the link mechanism 94a are provided at positions separated from each other in the z-axis direction, extend from the one end and the other end in the same direction along the x-axis direction, and are bent at an intermediate portion in the extending direction. Therefore, the link mechanism 94a has a U shape or a J shape when viewed from the y-axis direction. The set bar 93 is conveyed in the x-axis direction with respect to the fixed frame by changing the distance from one end (the other end) of the link mechanism 94a to the bent portion. It is conceivable that the set bar 93 is detachably provided on a member that supports the set bar 93, for example. Thereby, the electric wire 12 can be supplied or discharged together with the set bar 93 to the electric wire conveying unit 90. The electric wire conveyance part 90 is good to be able to send the set bar 93 by the integral multiple of the space | interval of a pair of support nail | claw 93b. Further, the electric wire conveyance unit 90 is provided with a guide member capable of guiding at least one of the one side portion and the other side portion along the y-axis direction with respect to the portion supported by the support claw 93b in the electric wire 12 being conveyed. It should be done.

However, the configuration of the wire support portion moving mechanism 94 is not limited to the above, and the wire support portion 92 may be moved by, for example, an endless annular chain mechanism.

The control unit 110 is connected to the first mechanism 32, the second mechanism 50, and the electric wire transport unit 90. Under the control of the control unit 110, each of the first mechanism 32, the second mechanism 50, and the electric wire transport unit 90 performs a processing operation related to the supply of the anticorrosive 18B.

The control unit 110 is configured by a general computer in which a CPU, a ROM, a RAM, an external storage device, and the like are interconnected via a bus line. The ROM stores basic programs and the like, and the RAM is used as a work area when the CPU performs processing according to a predetermined procedure. The external storage device is configured by a nonvolatile storage device such as a flash memory or a hard disk device. The external storage device stores an OS (operation system), a processing program including a supply program for supplying the anticorrosive 18B, and the like. The CPU as the main control unit 110 performs arithmetic processing according to the procedure described in the machining program, thereby controlling the operations of the first mechanism 32, the second mechanism 50, and the electric wire transport unit 90. For example, a control signal from the control unit 110 is supplied to the first mechanism 32, the second mechanism 50, and the electric wire conveyance unit 90 via the input / output interface, and the first mechanism 32, the second mechanism 50, and the electric wire conveyance unit 90 are Drive controlled.

The control unit 110 is connected to an input unit composed of various switches, a touch panel, and the like, and the anticorrosive agent supply device 30 is configured to be able to accept various instructions to the control unit 110 through the input unit. Can be considered.

Also, it is conceivable that the control unit 110 has a function as an inspection unit that inspects the state of the connection portion. More specifically, the image pickup signal input interface is connected to the bus line in the control unit 110, and the image pickup signal of the image pickup unit 38 is input to the control unit 110 through the image pickup signal input interface to supply the anticorrosive 18B to the electric wire 12. It is used for state determination processing. In this case, if necessary, the control unit 110 may be connected to a display device configured by a liquid crystal display device, a lamp, or the like so that various information such as determination results can be displayed.

Note that some or all of the functions performed by the control unit 110 may be realized by hardware using a dedicated logic circuit or the like.

Further, it is conceivable that a temperature sensor capable of measuring the temperature of each heating target of each heating unit 82, 84, 86 is provided. In this case, the operation of each heating unit 82, 84, 86 may be controlled by the control unit based on the measured temperature of the temperature sensor. It is also conceivable that a temperature sensor capable of measuring the temperature of the terminal 20 is provided. In this case, the operations of the terminal heating unit 84 and the terminal chuck unit 54 may be controlled based on the measured temperature of the temperature sensor.

Further, a set state detection unit 106 capable of detecting that the terminal-attached electric wire 10 is set in the electric wire setting unit 52 may be provided. The set state detection part 106 is provided in the rear end side support part 108 which supports the part extended back from the electric wire set part 52 among the electric wires 10 with a terminal, for example. In the example illustrated in FIG. 5, the set state detection unit 106 includes an optical sensor including a light projecting unit and a light receiving unit, and determines whether or not the terminal-attached electric wire 10 supported by the rear end side support unit 108 exists. Detect. In this case, when the set state detection part 106 detects the electric wire 10 with a terminal, the control part 110 can consider giving the operation command which concerns on supply of the anticorrosive 18B to each part.

<Manufacturing method>
Next, the manufacturing method of the electric wire 10 with a terminal using the said anticorrosive agent supply apparatus 30 is demonstrated, referring FIG. 9 thru | or FIG. FIG. 9 is a diagram for explaining the flow of the manufacturing process of the terminal-attached electric wire 10 using the anticorrosive agent supply device 30. 10, FIG. 11 and FIGS. 14 to 18 are explanatory views showing a manufacturing process of the terminal-attached electric wire 10. FIG. 12 is an explanatory diagram illustrating an example of a supply position of the anticorrosive agent 18 </ b> B with respect to the terminal-attached electric wire 10. FIG. 13 is an explanatory diagram illustrating another example of the supply position of the anticorrosive agent 18 </ b> B with respect to the terminal-attached electric wire 10.

First, as step S01, the electric wire 12 is supplied. Here, the electric wire conveyance part 90 conveys the electric wire 12 to be supplied to a predetermined position along the x-axis direction. In this state, as shown in FIG. 10, the electric wire 12 supported by the electric wire conveying portion 90 by the conveying chuck portion 34 is conveyed and set to the electric wire setting portion 52.

More specifically, by driving the y-axis direction moving mechanism 33, the conveyance chuck portion 34 is positioned above the support claw 93 b of the set bar 93 of the electric wire conveyance unit 90. In this state, by driving the z-axis direction moving mechanism 36 and the chuck opening / closing drive unit, the transfer chuck unit 34 receives the wire 12 from the wire transfer unit 90. Next, by driving the y-axis direction moving mechanism 33, the conveyance chuck portion 34 that has received the electric wire 12 from the electric wire conveyance portion 90 is positioned above the covering chuck portion 58. In this state, by driving the z-axis direction moving mechanism 36 and the chuck opening / closing drive unit, the electric wire 12 is transferred from the transfer chuck unit 34 to the covering chuck unit 58. At this time, the terminal 20 is supported by the support portion 68. Further, before this delivery operation, more specifically, immediately before the conveying chuck portion 34 is positioned above the covering chuck portion 58, the terminal pressing portion 61 is rotated so as to be temporarily located at a position where it does not interfere with delivery. Move. More specifically, after or during the delivery operation, the z-axis direction moving mechanism 36 is driven so that the sandwiching claw 58a of the covering chuck portion 58 is positioned at a position where the sandwiching claw 35a of the chuck portion 35 fits in the recess. Immediately after the chuck portion 35 is moved, the terminal 20 is rotated so as to return to a position where the terminal 20 can be pressed.

When the covering chuck portion 58 chucks the covering 14, the terminal chuck portion 54 chucks the terminal 20. Here, the mating side connection portion chuck portion 55 chucks the mating side connection portion 28, and the core wire crimping portion 24 chuck portion chucks the core wire crimping portion 24. Here, it is described that the wire connection portion chuck portion 55 chucks the wire connection portion 22 after the counterpart connection portion chuck portion 55 chucks the counterpart connection portion 28. However, the order of chucking is as described above. The reverse may be sufficient, and simultaneous may be sufficient. The terminal chuck 54 is heated to a predetermined temperature by the terminal heating unit 84 before chucking the terminal 20.

As described above, when the electric wire 12 is set in the electric wire setting unit 52, the supply position of the anticorrosive 18B is detected as step S02. More specifically, here, as shown in FIG. 11, by driving the y-axis direction moving mechanism 33, the imaging unit 38 is positioned above the connection part, and then the connection part is imaged by the imaging unit 38. To do. Then, the supply position is detected from the imaging data of the imaging unit 38. For example, it is considered that the dimensional tolerance in the shape of the terminal 20 is relatively small as compared with the dimensional tolerance of the crimping position of the electric wire 12 with respect to the terminal 20 or the variation tolerance of the setting position of the electric wire 12 with respect to the electric wire set portion 52. For this reason, for example, the predetermined position of the terminal 20 is determined from the obtained imaging data, and the anticorrosive 18B is supplied in accordance with a predetermined supply program with reference to the determined predetermined position, so that the anticorrosive is relatively accurate. 18B can be supplied.

At this time, it is also conceivable to change the conditions such as the supply range or supply amount of the anticorrosive 18B from the obtained imaging data. For example, the position of the edge part of the coating | cover 14 along the extension direction of the electric wire 12 is calculated | required from the acquired imaging data. And according to the position of the edge part of the coating | coated 14, the supply range of the anticorrosive 18B is changed as shown in FIG. 12 or FIG. In the example shown in FIGS. 12 and 13, the position where the droplet of the anticorrosive 18 </ b> B is supplied is indicated by a black dot. More specifically, comparing FIG. 12 with FIG. 13, in the example shown in FIG. 12, the edge portion of the coating 14 is in the rear end side (along the y-axis direction) along the extending direction of the electric wire 12 with respect to the terminal 20. In the example shown in FIG. 13, the edge of the coating 14 is on the tip side (the positive side along the y-axis direction) along the extending direction of the electric wire 12 with respect to the terminal 20. To position. Even when there is such a difference in the position of the edge of the coating 14, the anticorrosion agent 18 </ b> B only up to a position a predetermined distance away from the edge of the coating 14 to the rear end side regardless of the position of the edge of the coating 14 with respect to the terminal 20. If not set, the range in which the anticorrosive 18B is supplied changes as shown in FIGS.

Here, the intention of changing the supply range of the anticorrosive 18B as described above is as follows. That is, since the coating 14 is made of, for example, a resin or the like, it is inferior in thermal conductivity as compared with the core wire 13 and the terminal 20 that are made of a metal. For this reason, when the range of the anticorrosive agent 18 </ b> B supplied to the coating 14 is wide, it takes time to heat the coating 14 corresponding to the range via the terminal chuck portion 54. Moreover, when the coating 14 is not sufficiently heated, the anticorrosive 18B may not be sufficiently spread and collected, and the thickness of the terminal-attached electric wire 10 may be increased. On the other hand, from the viewpoint of the anticorrosive property, the necessity of supplying the anticorrosive agent 18B from the front edge of the coating 14 to a position far along the extending direction is not so high. Therefore, the anticorrosive 18B is supplied in accordance with the position of the coating 14 with respect to the terminal 20 in order to obtain the terminal-equipped electric wire 10 that has the necessary anticorrosion properties and does not become so thick even if the anticorrosion coating 18 is formed. The range to be changed is changed.

Note that the supply conditions of the anticorrosive 18B changed from the obtained imaging data are not limited to those described above.

For example, even when the position of the edge of the coating 14 with respect to the terminal 20 is different, when the same amount of the anticorrosive 18B is supplied to the same position, the heating time by the terminal heating unit 84 may be changed. Specifically, the coating 14 is inferior in thermal conductivity as compared with the terminal 20 and the core wire 13 as described above. Therefore, when the ratio of the coating 14 in the supply range of the anticorrosive 18B is large, the heating time by the terminal heating unit 84 is lengthened. Conversely, when the ratio of the coating 14 in the supply range of the anticorrosive 18B is small, the heating for the terminal is performed. It is conceivable to shorten the heating time by the part 84. Thereby, the anticorrosive agent 18B supplied to the coating 14 is surely easily spread to a desired range before being cured.

Further, for example, even when the position of the edge of the coating 14 with respect to the terminal 20 is different, when the anticorrosive 18B is supplied to the same position, the anticorrosive 18B supplied to the coating 14 can be reduced. Specifically, the coating 14 is inferior in thermal conductivity as compared with the terminal 20 and the core wire 13 as described above. Therefore, when the ratio of the coating 14 in the supply range of the anticorrosive 18B is large, it is conceivable to reduce the amount of one drop of the anticorrosive 18B supplied to the coating 14. Thereby, the anticorrosive agent 18B supplied to the coating 14 is surely easily spread to a desired range before being cured. In this case, in the case where the ratio of the coating 14 in the supply range of the anticorrosive 18B is large and the case where the ratio is small, it is considered that the supply amount of the anticorrosive 18B when viewed from the whole terminal-attached electric wire is increased. .

Further, when the terminal chuck 54 chucks the terminal 20 as shown in FIG. 14, the temperature of the terminal 20 is raised as the next step S03. Here, the terminal 20 is heated for a predetermined period of time with the terminal chuck 54 chucking the terminal 20 including the time when the imaging unit 38 images the connection portion. The heating time of the terminal 20, that is, the chucking time of the terminal 20 by the terminal chuck portion 54 is comprehensively determined and determined based on experimental and empirical viewpoints.

Here, the anticorrosive 18B to be supplied is heated to a temperature slightly lower than the temperature at which the anticorrosive 18B can be spread by the supply unit heating unit 82. For this reason, the anticorrosive 18B supplied to the connection portion reaches a temperature at which the anticorrosive 18B can be spread in a relatively short time by the heated terminal 20. Moreover, since the viscosity of the anticorrosive 18B does not become too low, it is suppressed that the anticorrosive 18B is difficult to supply when supplying the anticorrosive 18B drop by drop.

When the terminal 20 is sufficiently heated, the anticorrosive 18B is supplied as the next step S04. More specifically, as shown in FIG. 15, the y-axis direction moving mechanism 33 is driven to position the supply unit 40 above the connection portion. At this time, the supply unit 40 may be positioned at a position corresponding to the supply position detected in step S02. And the anticorrosive 18B is discharged by the discharge mechanism 41, and is supplied to a connection part. At this time, the discharge mechanism moving mechanism 46 is driven to supply the anticorrosive 18B drop by drop to a preset position, here a position indicated by a black dot in FIGS. At this time, the ejection mechanism 41 moves along the trajectory corresponding to the line connecting the black dots in FIGS. 12 and 13 in each part of Q1, Q2, and Q3 by driving the ejection mechanism moving mechanism 46. In the example shown in FIG. 12 and FIG. 13, after discharging the anticorrosive 18B to the discharge position along this direction while moving from one end side to the other end side along the x-axis direction, it moves in the y-axis direction, The anticorrosive 18B is discharged to a discharge position along this direction while moving from the other end side to the one end side along the x-axis direction. However, the movement of the discharge mechanism 41 by the discharge mechanism moving mechanism 46 is not limited to the above. For example, it may move along the y-axis direction while moving from one end side to the other end side along the x-axis direction, or always move from one end side to the other end along the x-axis direction. You may move toward the side.

Here, before the supply of the anticorrosive 18B is started, the wire connection portion chuck portion 56 is opened as shown in FIG. 16 to cancel the state where the connection portion is chucked. Thereby, it is suppressed that the electric wire connection part chuck | zipper part 56 obstructs supply operation | work, and that the anticorrosive 18B supplied to the circumference | surroundings of the electric wire connection part 22 adheres to the electric wire connection part chuck | zipper part 56. Further, the mating connector chuck 55 maintains the chucked mating connector 28 during the supply of the anticorrosive 18B. As a result, the degree of temperature drop of the terminal 20 due to changes over time and the supply of the anticorrosive agent 18B is reduced, and the supplied anticorrosive agent 18B is less likely to spread.

When the supply of the anticorrosive 18B is completed, the supply state is inspected as the next step S05. Here, each drop is detected by the detection unit 100 when the anticorrosive 18B is supplied. Therefore, data that associates the detection result of the detection unit 100 with the position of the discharge mechanism 41 with respect to the connection portion at that time is formed, and this is compared with a predetermined supply position of the anticorrosive 18B that is set in advance. It is inspected whether the anticorrosive 18B has been supplied to the position.

In addition to the above inspection, an image inspection may be performed. In this case, as illustrated in FIG. 17, the connection portion is imaged by the imaging unit 38 in a state where the y-axis moving mechanism is driven and the imaging unit 38 is positioned above the connection portion. And the supply state of anticorrosive 18B is test | inspected from the acquired imaging data.

When the inspection of the supply state is completed, the surplus of the anticorrosive 18B is sucked as the next step S06. Here, first, as shown in FIG. 18, the covering presser piece moving mechanism 66 is driven and the covering 14 is pressed by the covering presser piece 65. Then, the suction part moving mechanism is driven to bring the suction part 72 closer to the wire connection part 22. Here, as shown in FIG. 17, the suction contact portion 77 is brought into contact with the lower surface of the wire connection portion 22. Then, the suction drive part 75 is driven and the excess part of the anticorrosive 18B which exists in a connection part is attracted | sucked. However, the step S06 may be performed before the supply state inspection or in parallel with the inspection as long as the supply is completed.

When the suction for the surplus is completed, the electric wire 12 is discharged from the electric wire setting unit 52 as the next step S07. More specifically, the covering presser piece 65 and the suction part 72 are retracted, and the mating connection part chuck part 55 is opened. Then, the y-axis direction moving mechanism 33 is driven to position the transport chuck portion 34 above the covering chuck portion 58. In this state, the z-axis direction moving mechanism 36 and the chuck opening / closing drive unit are driven to deliver the electric wire 12 from the covering chuck unit 58 to the conveying chuck unit 34. Before and after this delivery operation, the terminal presser 61 also rotates so as not to obstruct the delivery operation, as in step S01.

When the transport chuck portion 34 receives the electric wire 12, the y-axis moving mechanism is driven to position the transport chuck portion 34 above the support claw 93 b of the set bar 93. In this state, the z-axis direction moving mechanism 36 and the chuck opening / closing drive unit are driven to deliver the electric wire 12 from the transfer chuck unit 34 to the support claw 93b. Thereby, it will be in the state where the electric wire 12 was discharged | emitted from the electric wire set part 52 to the electric wire conveyance part 90. FIG.

When the electric wire 12 is discharged from the electric wire setting unit 52 to the electric wire conveyance unit 90, the electric wire 12 of the electric wire conveyance unit 90 is sent as the next step S08. For example, the set bar 93 is sent by an interval between two adjacent pairs of support claws 93b. As a result, the next electric wire 12 to be processed is supplied to a position where it can be chucked by the conveyance chuck portion 34.

Thereafter, returning to step S01, by repeating steps S01 to S08, the anticorrosive agent 18B is sequentially supplied to the plurality of electric wires with terminals 10 supported by the set bar 93, and the anticorrosive coating 18 is formed. The electric wire 10 is manufactured continuously. Here, the anticorrosive agent 18 </ b> B supplied to the connection portion is naturally cooled to increase the viscosity, thereby forming the anticorrosion coating 18. But the anticorrosive 18B supplied to the connection part may be cooled by cooling means, such as air cooling or water cooling. In this case, the cooling means may or may not be incorporated in the anticorrosive supply device 30.

In addition, the operation | work which discharges the electric wire 10 with a terminal in which the anticorrosion coating 18 was formed from the anticorrosive agent supply apparatus 30, and the operation | work which supplies the electric wire with a terminal 10 to which the anticorrosive agent 18B is not supplied to the anticorrosive agent supply apparatus 30 are The anticorrosive agent 18B may be supplied during the supply operation, or may be performed collectively after supplying the anticorrosive agent 18B to all the electric wires with terminals 10 supported by the set bar 93.

According to the anticorrosive agent supply device 30 configured as described above, the temperature of the anticorrosive agent 18B discharged from the discharge mechanism 41 can be adjusted by the supply unit heating unit 82 heating the discharge mechanism 41, and the discharge is performed. It can suppress that the anticorrosive 18B to be hardened during supply. For this reason, it becomes possible for the supplied anticorrosive 18B to spread over a desired range, thereby reducing the risk of the product becoming defective. Therefore, the anticorrosive agent supply apparatus 30 supplies the anticorrosive agent 18B in which the phase change between the solid phase and the liquid phase or the change in the magnitude of the viscosity occurs depending on the temperature at the connection portion of the electric wire 12 and the terminal 20 in the electric wire with terminal 10. Suitable for

Moreover, since the supply part heating part 82 abuts on the circumference | surroundings of the part from the communication channel | path 45 to the discharge part 42 and heats, it can heat the anticorrosive 18B until just before discharging.

Further, the anticorrosive 18B is a member that has viscosity at a temperature in a vehicle use environment and decreases in viscosity by heating, and the supply unit heating unit can heat the discharge mechanism 41, so that the viscosity decreases by heating. An anticorrosive supply device 30 suitable for the anticorrosive 18B can be provided.

In addition, the viscosity of the anticorrosive 18B suddenly decreases between the first temperature and the second temperature higher than the first temperature, and the supply heating unit 82 determines that the temperature of the anticorrosive 18B to be discharged is the first temperature. Since the discharge mechanism 41 is heated to a temperature between the first temperature and the second temperature, the anticorrosive agent is in a state where the viscosity is sufficiently reduced to prevent the anticorrosive agent 18B from spreading and is not excessively reduced. 18B can be supplied.

{Modification}
FIG. 19 is a schematic plan view showing an anticorrosive agent supply apparatus 130 according to a modification. In the anticorrosive agent supply apparatus 130 according to the modification, two processing units 131 having the first mechanism 32 and the second mechanism 50 are provided for one electric wire transport unit 90. Thus, by providing the some process part 131 with respect to the one electric wire conveyance part 90, the production efficiency in the one anticorrosive agent supply apparatus 130 can be improved. In addition, when the two process parts 131 are provided with respect to one electric wire conveyance part 90, as the method of sending the electric wire 12 by the electric wire conveyance part 90, the following two types can be considered, for example. The first case is a case where the terminal-attached electric wires 10 processed by the two processing units 131 are alternately arranged along the conveyance direction of the electric wire conveyance unit 90. In this case, the set bar 93 may be fed by a size twice as large as the interval between the adjacent support claws 93b in one feed. Secondly, the terminal-attached electric wires 10 to be processed by one processing unit 131 are collected on one side along the conveyance direction of the electric wire conveyance unit 90 and the other side along the conveyance direction of the electric wire conveyance unit 90 is the other. This is a case where the terminal-attached electric wires 10 to be processed by the processed portion 131 are collected. In this case, as in the embodiment, the set bar 93 may be fed by the size of the interval between the pair of adjacent support claws 93b in one feed.

In the embodiment, the anticorrosive 18B has been described as a member that has viscosity at a temperature in a vehicle use environment and decreases in viscosity by heating, but this is not essential. For example, the anticorrosive 18B may include a thermoplastic resin such as hot melt. Even in this case, the anticorrosive agent supply device 30 can be used by changing the heating temperature of each of the heating units 82, 84, 86 and the like. Further, for example, the anticorrosive 18B may include a thermosetting resin. In this case, in the anticorrosive agent supply device 30, a cooling unit provided in place of the heating units 82, 84, 86 can be used. In this case, a heating unit for curing the thermosetting resin may or may not be incorporated in the anticorrosive agent supply device. When the heating unit for curing the thermosetting resin is incorporated in the anticorrosive agent supply apparatus, the anticorrosion before the heat of the heating unit spreads before or after the supply by providing the cooling unit. It can suppress that an anticorrosive becomes difficult to spread in a desired range resulting from extending to an agent.

Further, in the embodiment, it has been described that the supply heating unit 82 heats the discharge mechanism 41 so that the anticorrosive 18B has a temperature between the first temperature and the second temperature, but this is essential. is not. For example, the supply unit heating unit 82 may heat the discharge mechanism 41 so that the anticorrosive agent 18B has a temperature lower than the first temperature, or the anticorrosive agent 18B has a temperature higher than the second temperature. The discharge mechanism 41 may be heated so as to be.

In the embodiment, the supply unit heating unit 82 is described as heating the portion from the communication passage 45 to the discharge unit, but this is not essential. For example, the supply unit heating unit may heat only the storage unit 44.

In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts.

Although the present invention has been described in detail as described above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Electric wire with terminal 12 Electric wire 13 Core wire 13a Exposed core wire part 14 Coating | cover 18 Anticorrosion coating 18B Anticorrosion agent 20 Terminal 22 Wire connection part 24 Core wire crimping part 26 Covering crimping part 28 Opposite side connection part 30 Anticorrosive supply apparatus 32 1st mechanism 33 y Axial direction moving mechanism 34 Conveying chuck section 38 Imaging section 40 Supply section 41 Discharging mechanism 42 Discharging section 44 Storage section 52 Electric wire setting section 53 Fixing chuck section 54 Terminal chuck section 55 Counterpart connection section chuck section 56 Electric wire connection section chuck section 58 Cover chuck portion 60 Presser portion 61 Terminal presser portion 64 Cover presser portion 66 Cover presser piece moving mechanism 68 Support portion 70 Suction mechanism 82 Supply portion heating portion 84 Terminal heating portion 86 Suction body portion heating portion 90 Electric wire transport portion 100 Detection portion 110 Control unit

Claims (5)

1. A discharge mechanism including a storage portion that stores the anticorrosive agent, and a discharge portion that discharges the anticorrosive agent stored in the storage portion;
   A heat mechanism capable of heating or cooling the discharge mechanism;
   An anticorrosive supply device comprising:
2. The anticorrosive agent supply apparatus according to claim 1,
   The discharge mechanism further includes a communication passage that connects the storage unit and the discharge unit,
   The said heat mechanism is an anticorrosive agent supply apparatus which heats or cools by contacting the circumference | surroundings of the part from the said communication channel to the said discharge part.
3. It is an anticorrosive agent supply device according to claim 1 or 2,
   The anticorrosive is a member having a viscosity at a temperature under a vehicle use environment and a viscosity lowering by heating,
   The said heat mechanism is an anticorrosive agent supply apparatus which can heat the said discharge mechanism.
4. The anticorrosive agent supply device according to claim 3,
   The anticorrosive agent suddenly decreases in viscosity between a first temperature and a second temperature higher than the first temperature,
   The said heat mechanism is an anticorrosive agent supply apparatus which heats the said discharge mechanism so that the temperature of the said anticorrosive agent discharged becomes the temperature between the said 1st temperature and the said 2nd temperature.
5. A method of manufacturing a terminal-attached electric wire in which anticorrosion treatment is applied to the connection portion between the electric wire and the terminal,
   (A) a step of heating or cooling a discharge mechanism including a storage unit that stores the anticorrosive agent, and a discharge unit that discharges the anticorrosive agent stored in the storage unit;
   (B) supplying the anticorrosive agent to the connection portion from the heated or cooled discharge mechanism;
   The manufacturing method of the electric wire with a terminal provided with.

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