JP3485233B2 - Terminal crimping device, terminal transport method, terminal cutting method, and clamp positioning method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a terminal crimping device that cuts terminals one by one and supplies them to a clamp on a conveyor, and conveys them to a crimping machine by a conveyor and transfer means, and a terminal crimping device. The present invention relates to a terminal carrying method, a terminal cutting method, and a clamp positioning method.

[0002]

2. Description of the Related Art FIG. 16 shows a conventional terminal crimping apparatus disclosed in Japanese Patent Laid-Open No. 6-36854. In this device 105, the electric wire 106 is sent out by the measuring roller 107, turned by the reversing mechanism 108 and cut by the cutter 109, the coating of the electric wire end is peeled by the peeling machine 110, and the terminal is attached to the electric wire end by the crimping machine 111. It is a crimp connection. The electric wire 112 is gripped by the clip 113 on the belt and laterally moves on the support base 114.

A plurality of crimping machines 111 are arranged in parallel according to the type of the electric wire 106, and each crimping machine 111 can be detached from the device 105 together with the carriage 115. As shown in the detaching mechanism in FIG. 17, the crimping machine 11 is attached to the rail 116 on the carriage 115.
The first wheel 117 is engaged, and the horizontal cylinder 118 on the support base 114 side draws the crimping machine 111 toward the apparatus side along the rail 116 and abuts against the stopper 119 to fix it.

Terminals 120 are supplied to the crimping machine 111 in a vertical chain, and when the applicator 121 descends, the electric wires 112 are fed.
The chain 122 is cut at the same time when it is crimped to. Terminal 1
When changing the product number of 20, the applicator 121 is detached and replaced from the crimping machine 111 that has been detached in advance from the outside of the device, and the carriage 115 is set in the device 105. This reduces the time to shut down the device 105.

However, in the above-mentioned conventional structure, there is a problem that a switching preparatory worker is required in addition to the device dedicated worker, which increases the production cost.

FIG. 18 shows a terminal crimping device disclosed in Japanese Utility Model Laid-Open No. 61-18592. This device 125 is a terminal conveying means for cutting the terminals 129 one by one from a chain terminal 126 wound in a reel shape by a cutter 128 of a cutting machine 127 and sending them to a crimping machine 134 by chutes 130, 132 and a conveyor belt 133. The crimping machine 134 crimp-connects the electric wire 135 to the terminal 129.

However, in this device 125, it takes time and effort to replace the applicator of the crimping machine 134 depending on the type of the terminal 129, and the terminal 129 cannot be accurately positioned in the cutting machine 127 or the crimping machine 134. There was a concern.

[0008]

SUMMARY OF THE INVENTION In view of the problems of each device described above, the present invention is capable of efficiently transporting terminals to a crimping machine with high positioning accuracy, and is simple in correspondence with many types of terminals. An object of the present invention is to provide a terminal crimping device and a method using the terminal crimping device, which can rapidly perform setup change of the applicator.

[0009]

In order to achieve the above object, the present invention provides a terminal guide for guiding a chain terminal, and a drive means for moving the terminal guide integrally with the chain terminal in a terminal supply direction. A terminal supply unit having a terminal cutting lever integrally installed at the front end of the terminal guide, a conveyor extending in a direction orthogonal to the terminal supply direction, and a plurality of detachably arranged on the conveyor, the terminal guide A clamp for gripping a chain of terminals, a clamp opening / closing means and a terminal cutting lever driving means located on the conveyor, and a crimping machine located on the forward end side of the conveyor.
It is based on a terminal crimping device (claim 1) comprising a transfer means for transferring the clamp between the conveyor and the crimping machine. A plurality of the terminal supply units are arranged in parallel corresponding to the plurality of types of the chain terminals, and a plurality of types of applicators are horizontally arranged in parallel in the crimping machine (claim 2). ) Is also effective. Further, both the terminal cutting lever and the clamp are urged in the opening direction by a spring member, and the clamp opening / closing means and the terminal cutting lever driving means are composed of respective lifting cylinders and pressing portions connected to the respective lifting cylinders. The terminal crimping device (claim 3) and the terminal cutting lever have a terminal holding groove and a cutter portion for cutting the chain belt, and the terminal guide has a contact guide wall for the chain belt. A terminal crimping device having a cutting step facing the cutter section (claim 4), and the cutter section and the cutting step are formed obliquely so as to obliquely cut the chain band. A terminal crimping device (claim 5) or a positioning projection is provided at the front end of the terminal guide, and the clamp is provided with a horizontal groove for the projection and a vertical V-shaped groove. Lifting cylinder as opening and closing means A terminal crimping device in which a positioning pin is connected to the V-shaped groove (claim 6) and a terminal crimping device in which the terminal guide is provided with a retractable terminal feeding pawl (claim 7) are also effective. is there. Further, the clamp includes a terminal crimping device (claim 8) having a slide engaging portion for the clamp base on the conveyor and an applicator of the crimping machine, and a ball plunger for fixing, and the transfer means, A terminal crimping device (claim 9) comprising a chuck hand for the clamp, a shaft on which the chuck hand is arranged, and a drive means for moving the shaft forward and backward, and an applicator of the crimping machine are used for electrical contact of terminals. A terminal crimping device having a deformation prevention guide for pressing the part side (claim 10) is also effective. Further, the chain terminal is advanced together with the terminal guide in the clamping direction, the chain terminal is cut into one terminal by the terminal cutting lever, and the terminal is held by the terminal cutting lever, After the chain portion of is clamped by the clamp, the clamp is moved toward the crimping machine by the conveyor, the clamp is transferred from the conveyor to the crimping machine by the transfer means, and the wire is crimped to the terminal. A terminal conveying method (claim 11) in which only the clamp is returned from the crimping machine to the conveyor by the transfer means, and the chain strip of the chain terminal is pressed by the cutter part, and the chain strip is attached to the contact guide wall. A terminal cutting method (claim 12) of cutting the chain band between the cutting step and the terminal in the terminal holding groove while pressing the terminal, and the V-shape of the clamp. Positioning in the groove Is engaged with the pin, the projection of the terminal guide is engaged with the horizontal groove of the clamp, the clamp positioning method to fix the clamp in three-point support (claim 13) is also effective.

The main operation based on the above configuration will be described below. In the terminal crimping device according to the first aspect and the terminal transporting method according to the eleventh aspect, the terminal guide integrally advances with the chain terminal toward the conveyor side, and one terminal is cut from the chain band by the terminal cutting lever. The terminal cutting lever moves together with the terminal guide. The cut terminal is gripped at the chain portion by a clamp on the conveyor. The terminals are transported together with the clamps to the crimping machine, and are transferred to the crimping machine by transfer means,
Wires are crimped and connected by a crimping machine. The clamp is returned to the conveyor by the transfer means with the electric wire with the terminal removed. The terminal guide is retracted by the driving means after passing the terminal to the clamp. At that time, the chain terminal is a terminal feed claw (claim 7).
Is kept in a forward state. In the terminal crimping device according to the second aspect, the terminal supply unit according to the type of the terminal is used, and the terminal is supplied to the clamp as described above. At the same time, the applicator according to the type of terminal is automatically arranged on the crimping machine. A terminal crimping device according to claim 4, and claim 1.
In the terminal cutting method described in 2, when the cutting lever is brought into contact with the chain band while the lever is being closed, a force for pressing the chain band against the contact guide wall acts, thereby accurately positioning the terminal. In the terminal crimping device according to the fifth aspect, the chain allowance is increased by obliquely cutting the chain band. In the terminal crimping device according to claim 6 and the clamp positioning method according to claim 13, the clamp is supported by the V-shaped groove and the positioning pin at two points in the front-rear direction and the left-right direction, and in the vertical direction by the horizontal groove and the protrusion. It is supported at one point by the three-point support, and it is surely positioned by the three-point support. In the terminal crimping device according to the eighth and ninth aspects, the clamp is temporarily locked to the clamp base by the ball plunger. Then, by grasping the clamp with the chuck hand of the transfer means and pushing it forward with the shaft, the ball plunger is disengaged from the clamp base, the clamp advances, and the ball plunger engages with the applicator side. The reverse operation is performed when retreating.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 3 show an embodiment of a terminal crimping device according to the present invention. The terminal crimping device 1 is provided with a terminal supply unit 5 that cuts the horizontal chained terminals 2 from a terminal reel (not shown) into terminals 3 one by one and supplies the terminals 3 to the conveyor 4, and a plurality of equal parts on the conveyor 4. The clamp 6 for receiving and fixing the terminal 3 from the terminal supply unit 5 and the transfer means for transferring the clamp 6 to the applicator 8 of the terminal crimping machine 7 (FIG. 2) at the forward end of the conveyor 4 (pick and place mechanism). ) 9 and.

The chain terminal 2 (FIG. 1) has a plurality of types (2 ₁ , 2 ₂
...) are arranged in parallel, and the terminal supply units 5 (5 _{1 to} 5 ₅ ) are installed in parallel for each chain terminal 2. The clamps 6 are arranged on the conveyor 4 at the same intervals as the intervals between the terminal supply units 5. Usually, any one chain terminal 2 is selectively used, and the conveyor 4 continuously conveys the terminal 3 to the crimping machine 7 side. It is also possible to simultaneously hold a plurality of terminals 3 (3 ₁ , 3 ₂ ...) Of plural kinds or the same kind by each clamp 6 and convey them to the crimping machine 7 side.

In the crimping machine 7 (FIG. 3), a plurality of types of applicators 8 (8 ₁ to 8 ₆ ) are arranged in parallel so as to be movable in a direction orthogonal to the conveyor 4 depending on the type of the terminal 3. There is.
Each applicator 8 is fixed on a horizontally long substrate 10, and a disc-shaped shank 12 is slidably engaged with an upper rail 11. The rail 11 is fixed to the crimping machine 7, the elevating slider 13 of the crimping machine 7 is located substantially in the center of the rail 11, and the groove 14 of the rail 11 is continuous with the groove 15 of the elevating slider 13. A connecting plate 16 is vertically provided on the substrate 10, and the connecting plate 16 is fixed to a belt 17 of the conveying unit 25, and the belt 17 is driven to drive the applicators 8 ₁ to 8 along the rail 11.
Move horizontally with ₆ Thereby, the applicator 8 corresponding to the type of the terminal 3 is selected and automatically arranged on the crimping machine 7.

The crimping machine 7 (FIG. 2) is the same as the conventional one, and includes a driving servomotor 18, an eccentric shaft 19 rotated by the servomotor 18, and an elevating slider 13 engaged with the eccentric shaft 19. Equipped with. The shank 12 of the applicator 8 is engaged with the groove 14 of the elevating slider 13. Applicator 8
The upper mold 20 and the lower mold 21 are integrally continuous (FIGS. 3 and 14). In front of the lower mold 21, an electric wire transport device 24 holding an electric wire 22 with a clip 23 is located.

The clamp 6 (FIG. 2) is detachably engaged with a clamp base 26 (FIG. 9) on the conveyor 4, and is fixed by a spring-biased ball plunger 27 (FIG. 9). The clamp 6 is gripped by the chuck hand 28 of the transfer means 9 while gripping the terminal 3 and moved to the lower mold 21 of the applicator 8, and the electric wire 22 is crimp-connected to the terminal 3 when the upper mold 20 descends. The above configuration is also effective as a terminal transportation method.

The terminal crimping device 1 will be described in detail below for each unit. 4 and 5 show the terminal supply unit 5. The terminal supply unit 5 connects the chain terminal 2 to the terminal guide 30.
A terminal cutting lever 31 is sent along with to cut the terminals 3 one by one and supply them to the conveyor 4. Terminal guide 30
Includes a guide substrate 32 and a cover 33, and is horizontally moved to the conveyor 4 side by a horizontal cylinder 34 (driving means) (FIG. 5). The guide board 32 has a protruding contact guide wall 36 (FIG. 4) with which the chain band 35 of the chain terminal 2 is slidably contacted. The rear end surface 35a of the chain belt 35 slides on the contact guide wall 36.

As shown in FIGS. 6A and 6B, the guide substrate 32
A step 37 for cutting the terminal is provided on the forward end side of the guide board 32.
It is formed by digging down so as to cross diagonally. A right-angled cutter blade 38 is formed at the tip of the step portion 37.
The terminal cutting lever 31 engages with the recess 39 having the step portion 37.

As shown in FIGS. 7 and 8, the terminal cutting lever 31 is supported by a bearing portion 40 projecting from the guide substrate 32 by a pin 41 so as to be rotatable (swingable) in the vertical direction and a spring member (not shown). It is biased in the opening direction and is half-open in the free state. A cutter portion 42, which is notched in a taper shape, is formed along the step portion 37 in the middle portion of the lever 31. A holding groove 43 for terminal positioning is formed in the lower end portion of the cutter portion 42 in the lever longitudinal direction.

On the side of the lever opposite to the cutter 42,
Relief groove 44 for the clamp 6 on the conveyor 4
(FIG. 4) is notched. At the forward end of the guide board 32, a protrusion (protrusion) 45 (FIGS. 5 and 6) for positioning with respect to the clamp 6 is horizontally formed.

The terminal 3 engages with the holding groove 43 of the lever 31, the chain band 35 is pressed by the bottom portion 31a (FIG. 8) of the lever 31, and is slanted between the step portion 37 and the cutter portion 42, for example, It is cut at an angle of 45 °. At that time, as shown in FIG. 8, the chain band 35 is abutted against the contact guide wall 36 by the component force P ₁ of the pressing force P of the lever 31 and is accurately positioned. Thereby, the chain strip 35 is accurately gripped by the clamp 6, and the positional accuracy of the terminal 3 gripped by the clamp 6 is improved. Further, when cutting, the terminal 3 holds the holding groove 4 of the lever 31.
The terminal 3 is prevented from being deformed because it is held and fixed in the terminal 3. The cut terminal 3 is held in the holding groove 43 and supplied to the clamp 6. The above configuration is also effective as a terminal cutting method.

In FIG. 5, the guide substrate 32 is fixed to a base 46, the base 46 is connected to a rod 47 of a horizontal cylinder 34, and can slide on a frame 48 to advance and retreat.
Stoppers 49 and 50 are provided in front of and behind the frame 48 to define the forward end and the backward end of the terminal guide 5.
The base 46 is provided with a terminal feed pawl 51, which engages with the circular hole 52 (FIG. 4) of the chain belt 35 and is driven by the horizontal cylinder 34 to move forward integrally with the base 46 so as to move the chain terminal. Send out 2 one pitch at a time. When the base 46 is retracted, the feed claw 51 resists the bias of the spring 53 and falls forward. The chain terminal 2 moves between the cover 33 and the guide substrate 32.

A substantially U-shaped lock plate 54 (FIGS. 5 and 8) is provided on the guide board 32, and the lock plate 54 is the spring 1
The chain terminal 2 can be locked by contacting the chain band 35 with the biasing force of 04. The lock plate 54 is locked and unlocked by rotating the cam lever 55. The lock plate 54 is for preventing the chain terminal 2 from retracting at the time of setup,
It is also possible to automatically operate the cam lever 55 by a turning lever or the like (not shown) so as to lock it when the terminal is fed and unlock it when the terminal guide 5 retracts.

A conveyor belt 5 is attached to the conveyor 4 (FIG. 5).
6 is provided, and the conveyor belt 56 is provided with a cross section T shown in FIG.
The character-shaped clamp base 26 is fixed, and the clamp 6 is engaged with the clamp base 26. Above the conveyor 4 (FIG. 5), a vertical cylinder (elevating cylinder) 58 having a pressing roller 57 for the terminal cutting lever 31, a vertical positioning pin 59 for the clamp 6 and a pressing pin (bolt) 60 for opening the clamp. A vertical cylinder (elevating cylinder) 61 that integrally includes and is fixedly disposed on the frame 62. The pressing pin 60 is fixed to the positioning pin 59 by the clamp 63, and both the pins 59 and 60 move up and down integrally. The pressing roller 57 and the vertical cylinder 58 constitute a terminal cutting lever driving means, and the pressing pin 60 and the vertical cylinder 61 constitute a clamp opening / closing means.

As shown in FIG. 9, the clamp base 26 has a rail portion 64 projecting to both sides, a stopper 65 protruding upward on the rear end side, and a ball engaging hole 66 for the ball plunger 27 on the clamp side. The clamp 6 is formed in parallel with the slide engagement groove 67 (slide engagement portion) 67 having a substantially T-shaped cross section with respect to the clamp base 26, and the ridge 45 of the terminal guide 5 (FIG. 5). A base 69 having a horizontal groove 68 for positioning which engages with each other, an opening / closing part 72 pivotally supported by a pin 71 between front and rear walls 70, 70 of the base 69, and a base 69 of the base 69. It is formed integrally with the rear wall 70 and is configured with a transfer grip portion 73 having the ball plunger 27.

The ball plunger 27 comprises a male screw cylinder portion 74, a coil spring 75 in the cylinder portion, and a ball 76 urged by the coil spring 75. The opening / closing portion 72 is biased in the closing direction by an inner torsion spring 77. A pressing portion 78 is rotatably supported by a pin 79 on the tip side of the opening / closing portion 72,
A V-shaped groove 80 for the positioning pin 59 (FIG. 5) is formed at the base end of the opening / closing portion 72 in the vertical direction. In the grip portion 73, a pair of grip grooves 81 for the chuck hand 28 of the transfer means 9 are formed in the orthogonal direction.

In the clamp 6, the groove 67 is slidably engaged with the rail portion 64 of the clamp base 26, the rear wall 70 is brought into contact with the stopper 65, and the ball 76 is engaged with the engagement hole 66, whereby the clamp base 26 is engaged. It is detachably locked to. The chain band 35 of the terminal 3 is inserted between the opened / closed portion 72 and the base 69, and is pressed and fixed by the holding portion 78 of the closed opening / closing portion 72.

As shown in FIGS. 4 and 10, the chain band 3 of the chain terminal 2
5 is cut by the cutting lever 31 and is gripped by the clamp 6. That is, first, in the state of FIG. 5, the positioning pin 59 descends and engages with the V-shaped groove 80 (FIGS. 4 and 9) of the clamp 6, and at the same time, the pressing pin 60 pushes the clamp 6 to open it.

Next, as shown in FIGS. 11 and 12, the terminal guide 5
Is driven by the horizontal cylinder 34 to advance integrally with the chain terminal 2, the tip of the chain band 3 is inserted into the open clamp 6, and at the same time, the ridge 45 of the guide substrate 32 engages with the horizontal groove 68 of the clamp 6. Together, the clamp 6 is fixedly positioned in the vertical direction, and the V-shaped groove 80 is pressed against the positioning pin 59 to be fixedly fixed in the front-rear, left-right direction.
The clamp 6 is accurately positioned by the three-point support. As a result, the terminal 3 is set to the clamp 6 with high positional accuracy. The above configuration is also effective as a clamp positioning method.

When the chain belt 35 is inserted into the open clamp 6, the cutting lever 31 is located directly below the pressing roller 57. By driving the vertical cylinder 58, the pressing roller 57 descends as shown in FIG. 12, and the cutting lever 31 is pushed down to cut the chain band 35 as described above.

The chain band 35 includes an oblique cutter part 42 of the cutting lever 31 and an oblique blade part 38 of the guide board 32 (FIG. 6).
Is cut obliquely as shown in FIGS. A long grip margin for the clamp 6 is ensured by being cut obliquely.

Next, the pressing roller 57 (FIG. 11) rises, and the positioning pin 59 and the pressing pin 60 rise integrally. This causes the clamp 6 to spring 77 (FIG. 9).
Then, the chain strip (chain portion) 35 of one terminal 3 is fixed to the clamp 6. With this, one terminal 3 is cut and supplied to the clamp 6. The above configuration is also effective as a terminal supply and transportation method.

Even if there are many kinds of terminals 3, the shape of the chain band 35 is the same. Therefore, by gripping the chain band 35 with the clamp 6, it is possible to stably carry the terminals. Terminal guide 3
0 moves backward by driving the horizontal cylinder 34 and returns to the original position in FIG. At this time, the terminal feed claw 51 (FIG. 11) falls forward as shown by the chain line and passes under the chain band 35, so that the chain terminal 2 is kept in the advanced position. The terminal 3 gripped by the clamp 6 is conveyed to the crimping machine 7 side by the conveyor 4 as shown in FIGS.

FIG. 13 shows transfer means 9 for transferring the clamp 6 from the conveyor 4 to the crimping machine 7. The transfer means 9 includes a chuck cylinder 85 having a pair of vertical chuck hands 28 at its tip, and a chuck cylinder 85.
A ball screw shaft 86 or a spline shaft fixed to the tip, a rotating portion 87 having a female screw portion (not shown) engaging with the shaft 86, and the rotating portion 87 is driven by pulleys 88 and 89 and a belt 90. Servo motor 91
Composed of and. The rotating unit 87 and the motor 91 constitute a driving unit. The rotating portion 87 is rotated by the motor 91, and the shaft 86 is moved forward or backward depending on the rotation direction. The chuck hand 28 has a grip portion 73 (FIG. 9) of the clamp 6.
An engaging protrusion 92 having a triangular cross section is formed in the groove 81.

The chuck hand 28 removes the clamp 6 from the clamp table 26 (FIG. 9) of the conveyor 4 and advances it, and transfers it to a clamp table (not shown) of the lower mold 21 of the crimping machine 7 as shown in FIG. This clamp base also has a ball plunger 26
Is formed with an engaging hole for. Then, when the upper mold 20 of the applicator 8 is lowered, the electric wire 22 is crimped to the terminal 3. The above configuration is also effective as a terminal transportation method.

When crimping, as shown in FIGS. 14 to 15, the terminal deformation prevention guide 93 of the applicator 8 presses the electric contact portion 3a side of the terminal 3 between the lower die 21 and the electric contact portion 3a.
In that state, the terminal 3 is provided by the crimper 94 and the anvil 95.
The electric wire 22 (FIG. 2) is crimped to the crimping piece 3b. Terminal 3
Is separated from the root of the chain portion 35 simultaneously with crimping by the swing cutter 96 in the direction orthogonal to the terminals. Terminal deformation prevention guide 9
3 is fixed to the tip of a vertical shaft 97 vertically extending from the upper mold 20 and has a holding groove 98 in the horizontal direction with respect to the electric contact portion 3a. The terminal deformation prevention guide 93 prevents the terminal 3 from being deformed during crimping.

After the crimping, the clamp 6 is returned from the crimping machine 7 to the conveyor 4 by the transfer means 9 again. The chain band 35 left on the clamp 6 is removed from the open clamp 6 by being pressed by a part of the applicator at the same time as crimping. The electric wire 22 (FIG. 2) is conveyed together with the clip 23 by the rotation of the belt 99 (FIG. 1), and the next electric wire 22 is supplied to the crimping machine 7. Then, the clamp 6 that holds the next terminal 3
Are transferred onto the crimping machine 7 by the transfer means 9.

In order to switch the product number of the wire harness (assembly of electric wires with terminals), the terminal supply unit 5 is switched from, for example, 5 ₁ to 5 ₂ in FIG. 1, and another type of terminal 3 ₂ is clipped on the conveyor 4. Supply to 6. At the same time, as described above, the applicator 8 (FIG. 3) is horizontally moved to set another applicator (for example, 8 ₅ ) on the crimping machine 7. A mechanism for rotating the applicator 8 may be used.

[0038]

As described above, according to the inventions of claims 1 and 11, the terminal is cut separately from the crimping machine, and the terminals can be individually fed to the crimping machine reliably. The applicator is made smaller and lighter, and the applicator switching work becomes easier. Further, according to the invention of claim 2, it is possible to supply individual terminals and automatically switch the applicator according to the type of the terminals. This facilitates high-mix low-volume production of electric wires with terminals. Since labor is not required to change the applicator setup, labor costs are reduced, and automatic switching enables lead time reduction and intermediate inventory reduction for small lot production. According to the invention of claim 3, the terminal cutting lever and the clamp are separated from the clamp opening / closing means and the terminal cutting lever driving means, so that the terminal guide including the terminal cutting lever and the clamp are downsized, and the terminal is cut. The guide and clamp can be moved smoothly. According to the invention of claims 4 and 12, the chain terminal is pressed and positioned by the contact guide wall at the time of cutting by the terminal cutting lever, the cutting is performed with high positional accuracy, and the terminal is held by the terminal holding groove. As a result, the gripping position accuracy of the clamp is improved. Further, according to the invention of claim 5, the chain belt is obliquely cut, the gripping margin by the clamp is increased, and it is possible to reliably carry the sheet without displacement. In addition, claims 6 and 1
According to the third aspect of the invention, since the clamp is reliably positioned and fixed in the up, down, front, back, left, and right directions by the three-point support, the terminals are set in the clamp with high positional accuracy. According to the invention of claim 7, it is possible to reliably advance the chain terminal integrally with the terminal guide. Further, according to the inventions of claims 8 and 9, the clamp can be smoothly and reliably transferred to the clamp base or the applicator by only the one-dimensional movement (forward and backward) of the shaft, and the structure of the transfer means. Can be simplified.
Further, according to the invention of claim 10, the deformation preventing guide prevents the deformation of the terminal when the terminal is crimped.

[Brief description of drawings]

FIG. 1 is a plan view showing the overall shape of a terminal crimping device according to the present invention.

FIG. 2 is a front view showing the overall shape of the terminal crimping device.

FIG. 3 is a side view showing the overall shape of the terminal crimping device.

FIG. 4 is a plan view showing a terminal supply unit.

FIG. 5 is a side view showing a terminal supply unit.

6A is an enlarged plan view showing a portion A of FIG. 4, and FIG. 6B is a side view of the same.

FIG. 7 is a front view showing a terminal supply unit.

FIG. 8 is a front view showing a terminal supply unit that also holds terminals.

FIG. 9 is an exploded perspective view showing a terminal clamp, a clamp base, and a terminal.

FIG. 10 is a plan view showing a clamp holding a terminal.

FIG. 11 is a side view of the terminal supply unit showing a state in which terminals are supplied to the conveyor.

FIG. 12 is a side view of essential parts showing opening / closing of a clamp and cutting of a terminal.

FIG. 13 is a partially sectional front view showing a clamp transfer unit.

FIG. 14 is a side view showing the applicator.

FIG. 15 is a front view showing an applicator of the same.

FIG. 16 is an overall perspective view showing a conventional example.

FIG. 17 is likewise a side view of the main part.

FIG. 18 is a side view showing another conventional example.

[Explanation of symbols]

1-terminal crimping device 2 chain terminals 3 terminals 4 conveyor 5 terminal supply section 6 clamps 7 Crimping machine 8 Applicator 9 Transfer means 26 Clamp stand 27 ball plunger 28 Chuck hand 31 terminal disconnect lever 30 terminal guide 34 Horizontal cylinder 35 chain belt 36 Abutment guide wall 37 Cutting Step 42 Cutter part 43 terminal holding groove 45 Positioning ridge 51 terminal feed claw 57 Pressing roller 58,61 Vertical cylinder 59 Positioning pin 60 push pin 67 Slide engagement groove 68 horizontal groove 80 V-shaped groove 86 ball screw shaft 87 Rotating part 91 motor 93 Terminal deformation prevention guide

Continuation of the front page (56) Reference JP-A-6-36854 (JP, A) JP-A-7-335365 (JP, A) JP-A-7-335366 (JP, A) JP-A-8-190979 (JP , A) JP-A-8-111275 (JP, A) JP-A-8-315950 (JP, A) Actually open 61-18592 (JP, U) Actually open 1-122292 (JP, U) Actually open 5-17981 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 43/048 H01R 43/055

Claims (13)

(57) [Claims] 1. A terminal guide for guiding a chain terminal, a driving means for moving the terminal guide integrally with the chain terminal in a terminal supply direction, and a terminal cutting lever integrally installed at a front end of the terminal guide. And a conveyor extending in a direction orthogonal to the terminal supply direction, and a plurality of detachably arranged on the conveyor, positioned on the forward end side of the terminal guide and gripping a chain of terminals. A clamp, a clamp opening / closing means and a terminal cutting lever driving means located on the conveyor, a crimping machine located on the forward end side of the conveyor, and a transfer for transferring the clamp between the conveyor and the crimping machine. And a terminal crimping device. 2. A plurality of the terminal supply units are arranged in parallel corresponding to a plurality of kinds of the chain terminals, and a plurality of kinds of applicators are arranged in parallel in the crimping machine so as to be horizontally movable. The terminal crimping device according to claim 1. 3. The terminal cutting lever and the clamp are both urged in an opening direction by a spring member, and the clamp opening / closing means and the terminal cutting lever driving means are connected to each lifting cylinder and a pressing portion connected to each lifting cylinder. The terminal crimping device according to claim 1 or 2, wherein 4. The terminal cutting lever includes a terminal holding groove,
And a cutter portion for cutting the chain band, the terminal guide,
4. A contact guide wall for the chain belt, and a cutting step facing the cutter section.
The terminal crimping device according to any one of 1. 5. The terminal crimping device according to claim 4, wherein the cutter portion and the cutting step portion are formed obliquely so as to obliquely cut the chain band. 6. A positioning protrusion is provided at the front end of the terminal guide, a horizontal groove for the protrusion and a vertical V-shaped groove are provided in the clamp, and the clamp opening / closing means is an elevation unit. The terminal crimping device according to claim 1, wherein a positioning pin for the V-shaped groove is connected to the cylinder. 7. The terminal crimping device according to claim 1, wherein the terminal guide is provided with a retractable terminal feed claw when retracted. 8. The clamp has a slide engagement portion for a clamp base on the conveyor and an applicator of the crimping machine, and a ball plunger for fixing. The terminal crimping device according to any one of 6 above. 9. The transfer means comprises a chuck hand for the clamp, a shaft on which the chuck hand is arranged, and drive means for moving the shaft forward and backward. The terminal crimping device according to any one of 3, 6, and 8. 10. The terminal crimping device according to claim 1, wherein the applicator of the crimping machine has a deformation preventing guide for pressing the electric contact portion side of the terminal. 11. A method of transporting a terminal by using the terminal crimping device according to claim 1, wherein the chain terminal is integrally advanced with the terminal guide in the clamping direction, and the chain terminal is the terminal cutting lever. To cut into one terminal, and while holding the terminal with the terminal cutting lever, the chain portion of the terminal is grasped by the clamp, and the clamp is moved in the direction of the crimping machine by the conveyor to clamp the clamp. A terminal transfer method, wherein the transfer means transfers the wire from the conveyor to a crimping machine to crimp an electric wire to the terminal, and then the transfer means returns only the clamp from the crimping machine to the conveyor. 12. A method of cutting a terminal by using the terminal crimping device according to claim 4 or 5, wherein a chain band of a chain terminal is pressed by the cutter portion, and the chain band is attached to the contact guide wall. A terminal cutting method, characterized in that the chain band is cut between the step section for cutting and the terminal in the terminal holding groove while being pressed. 13. A method of positioning a clamp by using the terminal crimping device according to claim 6, wherein the positioning pin is engaged with the V-shaped groove of the clamp, and the protrusion of the terminal guide is provided. A clamp positioning method characterized by engaging the horizontal groove of the clamp to fix the clamp with three-point support.