JP2001297848A - Terminal crimpimg device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the setting works after replacement easily, promptly and precisely. SOLUTION: A shank module M is structured in which a shank 210 can be replaced integrally together with a pressurizing unit 250. This shank module M is connected detachably with the main body portion 201 and a ram 2e. In making the pressurizing unit 250 a general purpose, the adjustment after the replacement is also made easy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal crimping device.

[0002]

2. Description of the Related Art A terminal crimping device is generally known as a device for connecting a crimp terminal to a terminal of a covered electric wire.

Normally, a terminal crimping apparatus is a unit formed of a terminal band feeding mechanism for feeding a terminal band and a press mechanism for separating a terminal from the fed terminal band and crimping the terminal to an electric wire. The pressure bonding can be performed continuously by linking the mechanisms.

Conventionally, a press mechanism of a terminal crimping device has a shank connected to a ram of the press device and a pressing unit attached to the shank. The pressurizing unit is provided with a pressurizing member including a wire crimper and an insulation crimper, and is moved up and down on the ram of the press device via the shank, thereby cooperating with the member on the pressure receiving side. It was configured to crimp the terminals.

Here, in order to crimp the terminal between the crimper and the anvil, it is necessary to set a so-called crimp height (crimp height of the terminal) so as to match the crimper. Therefore, a crimp height adjusting mechanism for adjusting the crimp height has conventionally been provided on the shank.

In such a configuration, conventionally, in order to interlock the terminal band feeding mechanism and the press mechanism, both mechanisms have been mechanically connected by a cam link provided on the shank. Therefore, every time the type of the terminal is changed, it is necessary to replace the entire terminal crimping device. However, in recent years, it has been necessary to frequently change the type of terminal (terminal band) due to the diversification of terminal types and the demand for high-mix low-volume production. Therefore, in recent years, a pressure unit that can be attached to and detached from the main body side block member of the terminal crimping device has been disclosed (for example, Japanese Patent Application Laid-Open No. 10-50450).

This pressurizing unit includes a pressurizing unit connected to a ram of a press device for caulking a terminal to a covered electric wire, and the pressurizing unit includes a wire for caulking a wire barrel formed on the terminal. A crimper, an insulation crimper for caulking an insulation barrel, and a holder for integrally supporting these were provided. This pressurizing unit is configured to be detachable from the shank fixed to the ram.

[0008]

As described above, in the above-mentioned conventional configuration, the pressurizing unit is configured to be detachable from the shank, and the pressurizing member such as the crimper is exchanged. The crimp height adjustment mechanism is also
It was configured to be separated from the pressure unit. For this reason, it is necessary to always reset the crimp height after replacing the pressurizing unit, and there is a problem that it takes time to perform the adjustment work after replacing the pressurizing unit.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide a terminal crimping apparatus capable of easily, quickly and precisely setting work after replacement.

[0010]

According to the present invention, there is provided a press mechanism for crimping a terminal to a covered electric wire, and a terminal feed mechanism for feeding a terminal band to the press mechanism. The press mechanism includes a main body assembled to the press device, a shank guided by the main body so as to be able to move up and down and connected to a ram of the press device, and a pressurizing unit driven by the shank. And a shank module capable of integrally replacing the shank with the pressurizing unit, and the shank module is detachably connected to the main body and the ram. Terminal crimping device.

According to the present invention, since the shank is detachably connected to the main body and the ram as a component of the shank module including the pressurizing unit, the shank module is separated from the main body and crimped. It is possible to replace the terminal type. As a result, the crimp height adjusting function can be set for each shank module and can be attached to and detached from the main body unit integrally with the pressurizing unit. Adjustment after replacement of the battery is made as easy as possible.

In a preferred aspect, the pressure unit has a wire crimper for caulking a wire barrel formed on the terminal, and an insulation crimper for caulking an insulation barrel.
It has a crimp height adjusting mechanism for adjusting the height of each crimper of the pressurizing unit by displacing it relative to the ram.

With this configuration, the adjustment of the crimp height can be set in advance for each pressing unit, and the crimp height can be adjusted more precisely even after the replacement of the pressing unit. .

In another preferred embodiment, there is provided interlocking means for interlocking the lifting operation of the press mechanism and the feeding operation of the terminal feeding mechanism, and the interlocking means detects the feeding operation of the terminal feeding mechanism. It has a feeding operation detecting means, a crimping operation detecting means for detecting a crimping operation of the press mechanism, and a control means for controlling the operation of the terminal feeding mechanism and the press mechanism based on the detection signals of both the detecting means.

In this aspect, when the lifting operation of the shank and the terminal feeding operation by the terminal feeding mechanism are linked,
Since both can be linked by electric control, the shank shape can be made simpler and modularization can be promoted.

In still another preferred embodiment, a mounting / removing posture in which the shank can be attached / detached to / from a lifting / lowering space provided in the main body portion and for raising / lowering the shank, and a closing posture for restricting detachment of the shank disposed in the lifting / lowering space. And an operating member for operating the opening and closing operation of the opening and closing member.

In this case, the opening / closing operation of the opening / closing member by the operating member enables the shank to be attached / detached / replaced without using a tool.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the overall configuration of a terminal crimping apparatus according to one embodiment of the present invention. FIG. 2 is a front view showing the terminal crimping device. Referring to these drawings, the illustrated press apparatus 1 includes a terminal crimping apparatus 10, a servo unit 2 for driving the terminal crimping apparatus 10, and a control box 3 for controlling these apparatuses. An operator (not shown) supplies the coated electric wire W in front of the press device 1 to crimp the terminal 6 to the end of the coated electric wire W. In the following description, this worker side is assumed to be a front side.

The terminal crimping apparatus 10 has a base 11 to be mounted on the press apparatus 1, and a terminal feeding mechanism 100 and a press mechanism 200 are assembled on the base 11 (FIG. 2). reference).

The servo unit 2 includes a servo motor 2
a and a rotating shaft 2c driven by the servomotor 2a via a speed reducer 2b connected to the servomotor 2a.
And a lifting ram 2e connected to the rotating shaft 2c via a link 2d. The torque of the servo motor 2a is converted into a lifting motion by the link 2d to lift and lower the ram 2e.
To the shank module M provided in the press mechanism 200 of the terminal crimping device 10 attached to the lower part of the lifting ram 2e.

In the illustrated example, an encoder 2f is connected to the servo motor 2a, and the encoder 2f is connected to the control box 3 to be driven and controlled.

As shown, the housing 2 of the servo unit 2
An arm 22 bent at a right angle is attached to 1, and the terminal band reel 4 is attached to a free end of the arm 22. A guide plate 25 is held by the housing 21 via a mounting arm 24. Then, the terminal band 5 fed from the terminal band reel 4 is fed from the outside of the guide plate 25 to the terminal feeding mechanism 100 of the terminal crimping device 10 and fed to the press mechanism 200 of the terminal crimping device 10. It is supposed to be.

FIG. 3 shows a crimping apparatus 10 according to the embodiment of FIG.
FIG. 2 is an exploded perspective view of the terminal feeding mechanism 100 of FIG.

Referring to FIGS. 2 and 3, the terminal feeding mechanism 100 of the terminal crimping device 10 is guided by a guide rail 12 (see FIG. 2) extending along the width direction of the base 11 so as to extend in the front-rear direction. Unit base 101 that can be displaced
A feed claw block 102 assembled to the unit base 101; a setting block 103 for defining a feed pitch of the feed claw block 102; and an upper part of the unit base 101 in a state where the displacement of these blocks 102 and 103 is allowed. Unit plate 104 arranged in
And a brake unit 105 attached to an upper portion of the unit plate 104.

The unit base 101, the feed claw block 102, and the setting block 103 are movable elements of the terminal feeding mechanism 100 in the illustrated embodiment, and by changing their positions, a plurality of types of The terminal strip 5 can be fed.

The unit base 101 includes a base 11
The base 11 is configured to be displaceable in the width direction by a slide cylinder 106 provided at a rear portion of the base 11. Thus, the unit base 101 can be displaced relative to the press mechanism 200 at the time of setting a feeding state to be described later, so that terminal strips 5 having different lengths can be fed for general use.

A cylinder block 107 is fixed to the upstream end of the unit base 101 in the terminal band feeding direction A. The cylinder block 107 is provided with a feed claw block 102 during terminal crimping operation to be described later. A feed cylinder 110 that reciprocates along the band feeding direction A,
A feed amount setting cylinder 111 capable of reciprocatingly driving the setting block 103 along the terminal band feeding direction A at the time of setting a feeding state described later is attached. Each cylinder 11
The rods 110a, 111a of 0, 111 are connected to the corresponding blocks 102, 103 (see FIG. 3).
These cylinders 110 and 111 together with the slide cylinder 106 constitute driving means of the terminal feeding mechanism 100 in the illustrated embodiment.

The upper surfaces of the cylinders 110 and 111 are covered with a cylinder cover 109 fixed to the cylinder block 107 in a cantilever manner. The upper surface of the cylinder cover 109 also serves as a guide member for guiding the terminal band 5 fed from the terminal band reel 4 to the unit plate 104 on the unit base 101. The guided terminal band 5 is
Thus, the sheet is intermittently fed at a predetermined timing while being guided by the unit plate 104.

FIG. 4 is an enlarged perspective view showing a main part of the terminal feeding mechanism according to the embodiment of FIG.

Referring to FIG. 1, a terminal strip 5 of this type (so-called side type) generally has crimp terminals 6 arranged in parallel at a predetermined interval LC and connected to a strip-shaped carrier 7. Pilot holes 7 a formed in the carrier 7 corresponding to the respective crimp terminals 6 are formed. And
The feed claw block 102 has a feed claw 102a that can be introduced / retracted to / from the pilot hole 7a.
This feed claw 102a is introduced into the pilot hole 7a,
By moving the entire feed claw block 102 in the terminal band feeding direction A by the feed cylinder 110 corresponding to the facing distance L, the terminal band 5 can be driven to feed the crimp terminal 6 to the press mechanism. I can do it.

As shown in the figure, the feed claw 102a is chamfered in a triangular shape in which the upstream side in the terminal band feeding direction A is lowered, and moves up and down while being urged upward by an elastic member (not shown). Is available. Therefore, when the feed claw 102a moves from the upstream side to the downstream side, the feed claw 102a can elastically engage with the pilot hole 7a to drive the terminal band 5 downstream, and When returning to the upstream side from the above, it is possible to retreat from the pilot hole 7a by being guided by the chamfered portion, return to the original feed position, and introduce it into the pilot hole 7a succeeding the upstream side. I have.

The setting block 103 is formed in an L-shape when viewed in a plane, so that a defining surface 103a facing the terminal band feeding direction A and a guide surface 103b orthogonal to the defining surface 103a are formed. The return surface of the feed claw block 102 at the time of the backward movement is defined by the defining surface 103a, and the back surface of the feed claw block 102 is slidably guided by the guide surface 103b.

FIG. 5 is an enlarged perspective view showing a unit plate portion of the terminal feeding mechanism according to the embodiment of FIG.

Referring to FIGS. 3 and 5, the unit plate 104 has a carrier feeding groove 104a formed between the unit plate 104 and the brake unit 105, and the carrier 7 is conveyed into the carrier feeding groove 104a. A plate portion 104b for receiving the crimp terminal 6 of the terminal strip 5 and a lower surface portion of the carrier feed groove 104a,
a, and has a rib 104d for mounting the brake unit 105,
The crimping terminals 6 of the terminal strip 5 are fed to the press mechanism 200 side by side on the plate portion 104b.

The brake unit 105 includes a brake plate 10 which forms an upper portion of the carrier feed groove 104a.
5a and a cam lever 105d mounted in a long hole 105b formed in the center of the brake plate 105a.
The carrier 7 of the terminal band 5 is elastically pressed against the lower surface of the carrier feed groove 104a by the brake plate 105a, so that the feed claw 102a
Is prevented from being fed back in the terminal band feeding direction A. In order to elastically urge the brake plate 105a, a rectangular groove 101a that opens up and down is formed in the front surface of both ends of the unit base 101, and a coil spring 113 is disposed inside the groove 101a. Below the coil spring 113, a rectangular nut 114 is arranged. On this nut 114, a bolt 115 that passes through the brake plate 105a and the unit plate 104 is screwed while passing through the inner periphery of the coil spring 113. I agree. Therefore, the coil spring 113 is
As a result of being compressed between the unit plate 104 and the unit plate 104, the nut 114 is pushed down, and the urging force is transmitted from the head 115a of the bolt 115 to the brake plate 105a.
As for a, the portion forming the carrier feed groove 104a elastically presses the carrier 7 against the unit plate 104, and a function of preventing the carrier 7 from being fed back can be achieved. The cam lever 105d is rotatable between a brake floating posture shown by a solid line in FIG. 3 and a brake operation posture shown in a virtual line in FIG. 3 and FIG. 5 by being attached to the brake plate 105a by a rotation pin 105c. Is configured. In the brake floating position, the cam lever 105d protrudes a lower portion below the brake plate 105a, thereby floating the brake plate 105a against the urging force of the coil spring 113 and in the brake operating position. Is the brake plate 105
The lower portion is retracted into the position a, so that the biasing force of the coil spring 113 acts on the brake plate 105a.

The crimp terminal 6 of the terminal strip 5 fed onto the unit plate 104 is configured to be guided by an upper guide 120 provided in the press mechanism 200.

First, referring to FIG. 3, the upper guide 120
A guide plate 121, a rectangular bar-shaped guide block 122 for supporting the guide plate 121, and a guide block 1;
22 and a slide block 123 provided at one end.

The guide plate 121 substantially corresponds to the terminal band 5.
The crimp terminal 6 is guided.

FIG. 6 is a perspective view showing a main part of the upper guide according to the embodiment of FIG.

With reference to FIG.
Has a wire barrel 6a crimped on the core wire portion W1 of the covered electric wire W and an insulation barrel 6b crimped on the covered end W2 on the front side of the connection portion 6c. In the illustrated example, the guide plate 121 is bent so that the guide edge 121a of the guide plate 121 can guide along the guide groove 6d formed between the connection portion 6c and the wire barrel 6a. ing.

Next, the driving structure of the upper guide 120 will be described with reference to FIGS. FIG. 7 is an exploded perspective view showing a part of the crimping device according to the embodiment of FIG. 1 with a part omitted, and FIG. 8 is a perspective view of the crimping device according to the embodiment of FIG. FIG. 9 is a perspective view showing a part of the crimping device according to the embodiment of FIG.
0 is an enlarged perspective view showing a main part of the crimping device according to the embodiment of FIG.

Referring to these figures, the upper guide 12
Numeral 0 is configured to be able to move up and down by a clamp cylinder 140 fixed to the back surface of the main body 201 of the press mechanism 200 described below. Press mechanism 200 as shown
The main body 201 has a plate-shaped block body 201a erected on the base 11 and a pair of arms 201b, 201c protruding from an upper front surface of the block body 201a. A lifting space S of the crimper unit 250 (see FIG. 2) connected to the lifting ram 2e (see FIG. 1) of the servo unit 2 is formed between the lifting units 201c (see FIG. 7). A vertically extending insertion window 202 is formed in the block body 201a so as to correspond to the elevating space S. The slide block 123 of the upper guide 120 is inserted into the insertion window 202 so as to be able to move up and down. At the same time, it is attached via a connecting member 142 to a cylinder rod 141 of a clamp cylinder (drive means) 140 fixed to the back surface of the block body 201a. Thus, the upper guide 120 constitutes a movable element that is displaced up and down when the slide block 123 is moved up and down by the clamp cylinder 140.

Here, in the illustrated embodiment, the slide block 123 also serves as fixing means for fixing the anvil unit 220 disposed below the elevating space S. In the illustrated embodiment, the anvil holder 230 provided in the anvil unit 220 is configured to perform various positioning.

FIG. 11 is a schematic side view schematically showing the versatility of the terminal transport mechanism according to the embodiment of FIG. FIG.
2 is a schematic plan view schematically showing the versatility of the terminal transport mechanism according to the embodiment of FIG.

First, referring to FIG. 6, the dimensions to be managed for feeding the terminal band 5 include the guide height from the bottom surface of the guide groove 6d to the guide position by the guide edge 121a of the upper guide 120. LA, a distance LB from the pilot hole 7a to the guide groove 6d, and a perforation interval LC of the pilot hole 7a formed in the carrier 7. However, these dimensions LA, LB, and LC vary depending on the type of the crimp terminal 6 to be crimped. Therefore, in the present embodiment, FIGS. 11A and 11B and FIG.
As shown in (A) and (B), the use of the anvil unit 220 makes it possible to absorb variations in the dimensions LA, LB, and LC, thereby providing versatility.

FIG. 13 is an exploded perspective view of the anvil unit according to the embodiment of FIG. 1, and FIG. 14 is a perspective view of the anvil unit according to the embodiment of FIG.

Referring to these figures, the anvil unit 220 according to the present embodiment is basically
0, a block body 221, a block body 2
The slide cutter 222 is mounted so as to be able to move up and down with respect to 21, an insulation anvil 223 and a wire anvil 224 continuously provided behind the slide cutter 222, and a spacer 225.
These are connected by bolts 226. Further, the anvil unit 220 according to the present embodiment is provided with an anvil holder 230 that integrally supports these components 221 to 225. This anvil holder 230
Is a block body formed in a substantially U-shape in plan view,
The downstream side wall in the terminal band feeding direction is guided by the positioning member 14 fixed to the base 11, and the rear surface of the side wall contacts the front surface of the main body 201 of the press mechanism 200. Thus, the anvils 223 and 244 can be precisely positioned.

FIG. 15 is a schematic side view of the press mechanism according to the embodiment of FIG.

Referring to FIGS. 14 and 15, the anvil holder 230 has a contact surface 231 facing the slide block 123 of the upper guide 120 when assembled to the press mechanism 200. Therefore, when the clamp cylinder 140 displaces the slide block 123 from the raised state in FIG. 15A to the lowered state in FIG. 15B, the lower surface of the slide block 123 contacts the contact surface 231 and The entire anvil unit 220 can be locked.

Further, the height H of the contact surface 231 corresponds to the height corresponding to the type of the anvils 223 and 244 to be assembled (ie, the crimp terminal 6 to be crimped). Is changed, the stop position (set position) at which the slide block 123 stops when descending can be changed corresponding to the difference in the height H of the contact surface 231.
By changing the setting of the vertical height, the vertical height of the upper guide 120 attached to the slide block 123 is changed to automatically set the guide height LA of the terminal band 5 (see FIG. 6). It can be carried out.

FIG. 16 is a schematic plan view schematically showing a positioning structure of the terminal feeding mechanism according to the embodiment of FIG.

Referring to FIG. 13A and FIGS. 13 and 14, the anvil holder 230 of the anvil unit 220 has a positioning end face 232 formed on the upstream side in the terminal band feeding direction. This positioning end face 232 is
When the anvil unit 220 is fixed, the slide cylinder 106 is opposed to the notch 108 formed on the downstream side of the unit base 101 in the terminal band feeding direction A, and the slide cylinder 106 is moved from the extended state in FIG. FIG. 16 (B)
When the unit base 101 is pulled rearward after being displaced to the reduced length state, the notch 108
, The setting position of the unit base 101 in the front-rear direction can be individually set for each anvil unit 220. This makes it possible to automatically set the distance LB (see FIGS. 6, 11 and 12) from the pilot hole 7a to the guide groove 6d in accordance with the terminal to be crimped.

FIG. 17 is a schematic plan view schematically showing a positioning structure of the terminal feeding mechanism according to the embodiment of FIG.
8 is a schematic front view schematically showing a positioning structure of the terminal feeding mechanism according to the embodiment of FIG. 1, and FIG. 19 is a plan view schematically showing a position setting step of the terminal feeding mechanism according to the embodiment of FIG. It is a schematic diagram.

Referring to FIGS. 13 and 14 and FIGS. 17 to 19, a pair of adjustment bolts 233 and 234 are provided on the side wall on the upstream side in the terminal band feeding direction of the anvil holder 230 of the anvil unit 220. Fixed. These adjusting bolts 233 and 234 are for positioning the protruding positions (setting positions) of the above-described feed claw block 102 and setting block 103, respectively. Projection lengths LE and LF of 233a and 234a are individually set. Then, as shown in FIG. 19A, first, the setting block 103 is made to protrude and abut on the corresponding adjustment bolt 234,
As shown in FIGS. 19B and 19C, the setting block 10
3 and the head 2 of the adjusting bolt 234
The stroke range LS of the feed pawl block 102 between the end face of the feed pawl 34a (ie, the feed pitch LC of the feed pawl 102a).
Can be automatically set individually.

Next, the press mechanism 200 according to this embodiment
Will be described in detail.

FIG. 20 is a perspective view of the terminal crimping apparatus according to the embodiment of FIG. 1, and FIG. 21 is an exploded perspective view showing a part of the terminal crimping apparatus of the embodiment of FIG.

Referring to FIGS. 20 and 21, the press mechanism 200 according to the illustrated embodiment has a shank 210 that is vertically guided in the elevating space S formed in the main body 201. The shank 210 is a block-shaped metal member formed in a rectangular parallelepiped shape as a whole, and a connecting shank 212 having a mounting groove 211 that opens rearward is fixed to an upper end portion thereof. Then, as shown in FIG. 2, the flange 2g formed at the lower end of the lifting ram 2e of the press device 1 is mounted in the mounting groove 211 of the connecting shank 212, so that the shank 210 is entirely within the lifting space S. And driven up and down by the lifting ram 2e.

The elevating space S is formed between the pair of arms 201b and 201c. A guide plate 203 is fixed in a cantilever manner at the lower part of the front end surface of each arm 201b, 201c.
Reference numeral 10 is configured to be guided vertically up and down by the front surface of the block body 201a, the inner side surfaces of both arms 201b and 201c, and the back surface of the guide plate 203.

Here, the main body of the press mechanism 200 according to the illustrated embodiment has a door 26 attached to one arm 201b.
The door 260 is supported by bolts 261 along the vertical line. This bolt 261 is
Mounting plate 2 fixed to the upper end surface of block body 201a
04 and a guide plate 203 corresponding to the arm 201b.
20 is provided between the doors 260 to support the door 260. The bolt 261 allows the door 260 to move as shown in FIG.
As shown in FIG. 2, a closed posture allowing the shank 210 to move only in the vertical direction in the elevating space S,
As shown in FIG. 1, each guide plate 2
It can be displaced between a position above and a position below the mounting position that allows the shank 210 to be inserted and removed back and forth.

In order to open and close the door 260, in the illustrated embodiment, a toggle clamp 270 is provided so that the steering wheel can be operated.

As shown, the toggle clamp 270 includes a latch block 271 fixed to the outer wall of the main body 201,
The latch block 271 has a rotating handle 273 that is supported by a pin 272 and a wire spring 274 that connects the rotating handle 273 and the door 260, and is formed at the front of the latch block 271. By sliding the turning handle 273 along the inclined surface, the door 260 can be elastically locked in the closed position in that position, and the turning handle 273 is turned around the pin 272 to latch the door. By displacing the block 271 in a position that intersects with the slope, the locked state is released and the door 260 can be displaced to the detached position.

Although not specifically shown, the rotating handle 273 is provided with an elastic member and a lock releasing member 273a which moves up and down by the elastic member. By locking the locking member to the unlocking member 273a, the locked state (the state shown in FIG. 20) can be maintained, and the engagement with the locking member is released by pushing the unlocking member 273a. The rotation handle 2
73 can be displaced to a release state (the state shown in FIG. 21).

Next, the crimper unit 250 assembled to the shank 210 will be described with reference to FIGS. 22 and 23. FIG. 22 is an exploded perspective view of the pressure unit according to the embodiment of FIG. 1, and FIG. 23 is a schematic sectional view of the pressure unit according to the embodiment of FIG.

With reference to these figures, the crimper unit 250 according to the illustrated embodiment is different from the shank 21 described above.
By shaping the shank module M integrally with the shank module M, the shank module M is integrally formed.

In the illustrated example, the crimper unit 25
0 is a cutting punch 251, an electric wire holder 252, an insulation crimper 253, and a wire crimper 25.
4, the first reformer guide 255, the first reformer 256, the second reformer 257, and the second reformer guide 258 as a plurality of pressurizing members so as to be integrally or relatively displaceable in this order from the front. And are connected by being inserted by bolts 259. The bolt 259 connects the above members by being screwed into a screw hole 217 of a shank lid 216 fixed to the innermost portion of the accommodation portion 214 of the shank 210 with a bolt 215. Each of the above-mentioned pressurizing members (251 to 258) is itself known,
In cooperation with each member (slide cutter 222, insulation anvil 223, wire anvil 224, and spacer 225) of the anvil unit 220, the covered wire is stopped by the wire holder 252, and the
The crimp terminals 6 of the terminal band 5 are corrected by 56 and 256, the crimp terminals 6 are separated from the terminal band 5 by the cutting punch 251, and the barrels 6a and 6b (see FIG. 6) of the crimp terminals 6 are crimped by the crimpers 253 and 254. Things. In the drawing, SP1, SP2, and SP3 are coil springs for elastically moving up and down the first and second reformers 256 and 257 and the wire retainer 252, respectively.

Here, in order to adjust the crimp height of each of the crimpers 253 and 254, the crimp height adjusting mechanism 300 is provided in the shank module M. The crimp height adjusting mechanism 300 includes a driving rod 301 disposed in a mounting hole 218 formed in the shank 210, a height cam 302 fixed to a rear end of the driving rod 301, and a height cam 302.
Insulation cam 303 disposed concentrically and relatively rotatable on the drive rod 301 in front of it
An insulated dial 304 fixed to the front end of the insulation cam 303; and a height dial 305 fixed to the front end of the drive rod 301 in front of the insulated dial 304.
And

Further, the shank 210 is provided with a height adjusting shaft 310 which is driven up and down by the height cam 302, and is provided between the insulation cam 303 and the insulation crimper 253. A rectangular spacer 307 is provided. As is well known, the cross-sectional shape of each of the cams 302 and 303 is
01 is formed in a polygonal shape that forms cam surfaces having different radial dimensions from the center of the cam surface 01. By changing the cam surface, the height in the vertical direction between the cam surface and a member abutting on the cam surface is changed. It can be changed.

As shown in FIG.
The height cam 302 for adjusting the height of the height 54 is provided between the inner peripheral surface of the mounting hole 218 of the shank 210 and the lower surface of the flange 2g of the lifting ram 2e.
2 to rotate the height adjusting shaft 310 on the cam 302 to move the shank 210 and the lifting ram 2e.
To change the mounting interval H1. As described above, the height cam 302 is fixed to the drive rod 301, and the height dial 305 is fixed to the front end of the drive rod 301. By rotating the use dial 305, the height adjustment can be performed. In the illustrated example, a plate-shaped height adjustment retainer 308 is provided between the shank 210 and the connection shank 212. By guiding the small-diameter portion of the height adjustment shaft 310 by the height adjustment retainer 308, The height adjustment shaft 310 is detached from the shank 210, and the variation in the mounting interval H1 between the height adjustment presser 308 and the connection shank 212 is absorbed, so that the entire shank module M including the wire crimper 254 moves up and down. It can be moved up and down.

Also, an insulation cam 303 for adjusting the height of the insulation crimper 253 is provided.
Are arranged above both crimpers 253 and 254 at the time of assembly, and are connected only to the insulation crimper 253 via the spacer 307. A cutout 254a is formed in the upper part of the wire crimper 254 to connect only to the insulation crimper 253 (see FIG. 22).

As described above, the installation cam 303 is mounted so as to be rotatable relative to the drive rod 301, and the front end of the installation cam 303 is provided with the installation dial 3.
Since 04 is fixed, in the illustrated assembled state,
The height of the insulation crimper 253 can be adjusted by rotating the insulation dial 304. As described above, in this embodiment, since the shank 210 is detachably connected to the main body 201 of the press mechanism 200 and the elevating ram 2e, the shank 210 and the crimper unit 250 constitute a shank module M as an element. It becomes possible to separate from the main body part and replace it for each type of crimp terminal 6 to be crimped. As a result, the crimp height adjustment function (specifically, the crimp height adjustment mechanism 300) is set for each shank 210, and can be attached to and detached from the main body unit integrally with the crimper unit 250. In making the unit 250 versatile,
Adjustment after replacement of the crimper unit 250 is made as easy as possible.

Further, as in the above-described embodiment,
When the crimper unit 250 has the insulation crimper 253 and the wire crimper 254 and the shank 210 has the crimp height adjustment mechanism 300, the adjustment of the crimp height is set in advance for each crimper unit 250. In addition to this, the crimp height can be adjusted more precisely even after the replacement of the crimper unit 250.

Next, an interlocking mechanism 400 (interlocking means) for interlocking the terminal feeding mechanism 100 and the press mechanism 200 will be described with reference to FIG. In the present embodiment, the interlocking mechanism 400 (see FIG. 24) electrically controls the terminal feeding mechanism 100 and the press mechanism 200 by controlling the control box 3 (see FIG. 1).

FIG. 24 is a block diagram of the terminal crimping apparatus according to the embodiment of FIG. 1, and FIG. 25 is a front view of a control box of the terminal crimping apparatus according to the embodiment of FIG.
FIG. 26 is a schematic side view schematically showing a detection state of the position detection means provided in the press mechanism according to the embodiment of FIG.

Referring to FIG. 1, FIG. 24 and FIG. 25, control box 3, which is a main part of interlocking mechanism 400, includes a housing 30 and a control unit 31 (control means) mounted in housing 30. The control unit 31 includes a front plate 30 of the housing 30.
Power lamp 33 and abnormal lamp 3 attached to a
4, a power switch 35 (omitted in FIG. 24), a fixed switch 36, a release switch 37, a continuous / manual changeover switch 38, and a feed switch 39 are provided. As an external device, a foot switch 401 for an operator to operate the terminal crimping device is connected, and a servo motor 2a of the press device 1
The slide cylinder 106, the feed cylinder 110, and the feed amount setting cylinder 111 of the terminal feed mechanism 100 are connected, and the servo motor 2a of the press device 1 and each cylinder 10
6, 110 and 111 are operated at predetermined timings to be described later.

Here, the setting block 103 of the terminal feeding mechanism 100 has a proximity sensor 402 (feeding operation detecting means) for detecting a relative displacement of the feeding claw block 102.
(See FIG. 2). This proximity sensor 402
Is between a state in which the feed claw block 102 is in contact with the defining surface 103a of the setting block 103 and a state in which the feed claw block 102 moves forward and away from the defining surface 103a. It turns on / off and outputs a signal to the control unit 31.

Further, referring to FIG. 26, a proximity sensor 403 (crimping operation detecting means) is attached to the main body 201 of the press mechanism 200. Proximity sensor 403
Is provided on the block 201a of the main body 201, and FIG.
As shown in FIG. 6 (A), when the crimper unit 250 is at the upper fulcrum, it is OFF, and as shown in FIG.
ON when lowered to the crimping position, and FIG.
It is set to be OFF as shown in FIG. 26 (C) when it has risen to a certain extent from the crimping position of (B), and the crimping operation of the shank module M is detected by the sequence, and the detected result is as described above. The data is input to the control unit 31.

Next, the operation procedure of the above-described terminal crimping apparatus 10 will be described with reference to FIGS. 27 to 29.
FIG. 27 is a flowchart showing the operation procedure of the terminal crimping apparatus according to the embodiment of FIG. 1, FIG. 28 is a flowchart showing the operation procedure of the continuous operation mode in the operation procedure of FIG. 27, and FIG. 6 is a flowchart illustrating an operation procedure of a setting change mode in the procedure.

First, referring to FIGS. 1 and 27, when the power switch 35 is operated and the power is turned on, the control unit 31 checks the state of the continuous / manual changeover switch 38 and sets the automatic mode. If it is selected, the process proceeds to the continuous operation mode routine (see step S2). If the manual mode is selected, the process proceeds to the feed operation mode routine (see step S3), and returns from each subroutine. After that, the above steps are repeated until the power is turned off (see step S4). In the initial state, the terminal band 5 is connected to the terminal feeding mechanism 1.
The crimp terminal 6 at the end thereof is set to be capable of crimping on the anvil unit 220.

Referring to FIGS. 1 and 28, when the routine shifts to the continuous operation mode routine, first, the control unit 31
Waits for the foot switch 401 to be operated (see step S21), and determines whether or not the release switch 37 has been operated while the foot switch 401 has not been operated (see step S22). When the release switch 37 is operated at this stage, a setting change mode S5 described later is selected, and each part of the crimp terminal device 10 can be changed.

On the other hand, in step S21, when the operator sets the terminal portion of the insulated wire W, which has been peeled in advance, on the crimp terminal 6 set in the press mechanism 200 and operates the foot switch 401, the control is started. Unit 31
Drives the servo motor 2a of the press device 1, lowers the shank module M, and raises it after crimping (see step S23). By this raising and lowering operation, the proximity sensor (crimping detection sensor) 403 is turned on as shown in FIG. ~ (C)
The vertical movement of the shank module M is detected by the following procedure.
By this detection operation, the control unit 31 determines whether the crimping operation is good or not (see step S24). If it is determined that the crimping operation is bad, the control unit 31 displays an abnormality and interrupts the process (see step S25). If it is determined that
The feed cylinder 110 is extended, and the terminal band 5 is driven to feed the next crimp terminal 6 to the anvil unit 220. This feed operation is performed by the proximity sensor (feed detection sensor) 402.
When the feeding operation is good, the process returns to the original routine, and when it is determined that the feeding operation is bad, the abnormality display in step S25 is performed and the process is stopped.

Next, referring to FIG. 29, when the setting change mode of step S5 is selected, control unit 31 first operates cylinders 106, 110, 1 of terminal feeding mechanism 100.
11 and 130 are simultaneously driven in the release direction. Thereby, the anvil unit 220 of the press mechanism 200 is released so as to be exchangeable, and other movable elements (the unit base 101, the setting block 103, the upper guide 120).
Are also released so that the settings can be changed at the same time. In this state, the operator replaces each unit (specifically, the shank module M and the anvil unit 220) of the press mechanism 200 (see step S52).

In this replacement work, when replacing the member on the pressurizing side, the turning handle 273 is operated in the procedure described with reference to FIGS. The crimper unit 250 can be replaced with the crimper unit 250 attached.

Also, when replacing the pressure receiving member, the anvils 223, 244, etc. of the corresponding terminals can be changed only by replacing the modularized anvil unit 220.

The control unit 31 waits for the operator to operate the fixed switch 36 of the control box 3 (see step S53). And the fixed switch 36
Is operated, the control unit 31 first extends the clamp cylinder 140 and presses the anvil holder 230 against the base 11 by the slide block 123 (see step S54). Thereby, the anvil unit 22
No. 0 is pinched between the slide block 123 and the base 11 and firmly fixed (see FIGS. 15A and 15B). Further, with this configuration, as described above with reference to FIG. 11, the guide height LA (L1, L2 in FIG. 11) corresponding to the crimp terminal 6 can be automatically set.

Next, as shown in FIGS. 16A and 16B, the control unit 31 reduces the length of the feed cylinder 110 to move the unit base 101 to the clamped anvil holder 230 of the anvil unit 220. Are brought into contact with each other for positioning (see step S55). As a result, as shown in the figure, the entire member supported by the unit base 101 is positioned rearwardly downward, and as shown in FIG. 12, the optimum distance LB (see FIG.
2, L3, L4) can be set.

Lastly, as shown in FIGS. 19A and 19B, the control unit 31 extends the feed amount setting cylinder 111 and brings the setting block 103 into contact with the adjusting bolt 234 of the corresponding anvil holder 230. (See step S56). Thereby, the setting block 103
The spacing between the adjusting bolt 233 corresponding to the regulating surface 103a and the feed claw block 102 is automatically set, and the feed claw block 102 reciprocates within this opposed space (see FIG. 19C). As shown in FIG. 12, it is possible to set the optimal perforation interval (that is, the feed pitch) LC (L5, L6 in FIG. 12) for the corresponding terminal band 5.

When the extension of the feed amount setting cylinder 111 is completed, the control unit 31 returns to the routine of FIG. In FIG. 27, when the feed operation mode (step S3) is selected, by operating the feed switch 39, the feed cylinder 110 can be reciprocated once at a time. This allows the operator to perform an initial setting of the terminal crimping device, an inspection of a feed amount, and the like.

As described above, in the present embodiment, the setting of the press mechanism 200 (specifically, the anvil unit 220) is performed when changing the feeding conditions of the terminal band 5.
Can be automatically changed by the positioning means (anvil holder 230) provided in the press mechanism 200, and the main part of the terminal feeding mechanism 100 can be automatically changed. When the conditions are changed, the adjustment of the terminal feeding mechanism 100 is greatly facilitated, and there is a remarkable effect that the workability can be improved.

Particularly, in the illustrated embodiment, a clamp cylinder 140 is employed, and the clamp cylinder 140 is replaced with a replaced press mechanism (specifically, the anvil unit 22).
Since the first driving member also serves as a clamping means for clamping 0), a single clamp cylinder (for example, an air cylinder) 140 attaches / detaches the anvil unit 220 and drives the upper guide 120 up and down simultaneously. This makes it possible to change settings quickly with a simpler configuration.

The driving means according to the present embodiment comprises an anvil holder 2 clamped by the clamp cylinder 140.
An air cylinder (110, 111, as a subsequent driving member) for sequentially driving another movable element (unit base 101, blocks 102, 103) with respect to 30
106). Therefore, when the setting of the anvil unit 220 is performed by the clamp cylinder 140 as the first driving member, the anvil unit 220 set by the clamp cylinder 140 is set.
Since the remaining movable elements (unit base 101, blocks 102 and 103) can be positioned in relation to the above, precise positioning can be reliably performed even when a plurality of movable elements are present.

Further, in the above embodiment, since the shank 210 is detachably connected to the main body 201 and the elevating ram 2e, as described above, this shank 210 is used as the pressurizing unit.
The shank module M is formed together with the shank module 50, and the shank module M can be separated from the main body 201 and can be replaced for each type of the terminal 6 to be crimped.

As a result, the crimp height adjustment function (crimp height adjustment mechanism 300) is set for each shank 210 and can be attached to and detached from the main body 201 integrally with the crimper unit 250. In order to increase the versatility of the unit 250, adjustment after replacement of the crimper unit 250 is made as easy as possible.

In particular, since the shank 210 (or shank module M) has the crimp height adjusting mechanism 300, it is possible to set the crimp height adjustment in advance for each crimper unit 250, Even after the unit 250 is replaced, the crimp height can be adjusted more precisely.

Further, in this embodiment, since the interlocking means (interlocking mechanism 400) for interlocking the lifting / lowering operation of the shank 250 with the terminal feeding mechanism 100 is provided, the raising / lowering operation of the shank 210 and the operation of the terminal feeding mechanism 100 are performed. When interlocking the terminal feeding operation, the two can be interlocked by electrical control, the shape of the shank 210 can be made simpler, and modularization can be promoted.

In the above-described embodiment, the door 260 (opening / closing member) is provided in the main body 201, and the opening / closing operation of the door 260 is performed by the toggle clamp 270 as an operation member. It is possible to perform the attachment / detachment / replacement work of the shank module M without any need.

The above embodiment is merely an example of a preferred specific example of the present invention, and the present invention is not limited to the above embodiment.

For example, a modification shown in FIG. 30 can be employed. FIG. 30 is a schematic sectional view of a module according to another embodiment of the present invention.

As shown in the figure, the crimp height adjusting mechanism 300 employed in the crimper unit 250 as a pressurizing unit includes two drive rods 301a,
01b may be employed. In this case, the upper drive rod 301a is provided with a height adjusting mechanism of the wire crimper 254 (a mechanism for relatively displacing the entire pressing unit 250 with respect to the lifting ram 2e. Specifically, the height cam 302 and the height Dial 305,
The mechanism for adjusting the height of the insulation crimper 253 (only the insulation crimper 253 is relatively displaced with respect to the pressurizing unit 250. Specifically, for the insulation) Cam 307 and dial 3 for insulation
04) may be summarized. When this configuration is employed, the spacer 307 described with reference to FIGS. 22 and 23 can be omitted.

The operation control during crimping is also described in FIG.
1 can be adopted. FIG.
9 is a flowchart showing an operation procedure in a continuous operation mode according to another embodiment of the present invention. Step S21 in FIG.
As shown in 1 to S214, as a crimping procedure, a terminal band feeding operation may be performed first, and then a crimping operation may be performed. This driving operation can be changed as appropriate according to the specifications of the sensor employed in the interlocking mechanism 400 and the like.

It goes without saying that various modifications are possible within the scope of the claims of the present invention.

[0102]

As described above, according to the present invention, the shank is separated from the main body as an element constituting the module of the pressurizing unit, and the function of adjusting the crimp height is set for each shank. The pressure unit can be attached and detached to and from the main unit, so that the press unit can be set easily after replacing the pressure unit, making it easy, quick, and precise. It works.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a terminal crimping apparatus according to an embodiment of the present invention.

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

FIG. 3 is an exploded perspective view of a terminal feeding mechanism of the crimping device according to the embodiment of FIG.

FIG. 4 is an enlarged perspective view showing a main part of the terminal feeding mechanism according to the embodiment of FIG. 1;

5 is an enlarged perspective view showing a unit plate portion of the terminal feeding mechanism according to the embodiment of FIG. 1;

FIG. 6 is a perspective view showing a main part of an upper guide according to the embodiment of FIG. 1;

FIG. 7 is an exploded perspective view showing a part of the crimping device according to the embodiment of FIG.

FIG. 8 is a perspective view of the crimping device according to the embodiment of FIG. 1 as viewed from the back side.

FIG. 9 is a perspective view showing a part of the crimping device according to the embodiment of FIG.

FIG. 10 is an enlarged perspective view showing a main part of the crimping device according to the embodiment of FIG. 1;

FIG. 11 is a schematic plan view schematically showing versatility of the terminal transport mechanism according to the embodiment of FIG. 1;

12 is a schematic side view schematically illustrating the versatility of the terminal transport mechanism according to the embodiment of FIG. 1;

FIG. 13 is an exploded perspective view of the anvil unit according to the embodiment of FIG.

FIG. 14 is a perspective view of the anvil unit according to the embodiment of FIG. 1;

FIG. 15 is a schematic side view of the press mechanism according to the embodiment of FIG. 1;

FIG. 16 is a schematic plan view schematically illustrating a positioning structure of the terminal feeding mechanism according to the embodiment of FIG. 1;

FIG. 17 is a schematic plan view schematically showing a positioning structure of the terminal feeding mechanism according to the embodiment of FIG. 1;

FIG. 18 is a schematic front view schematically illustrating a positioning structure of the terminal feeding mechanism according to the embodiment of FIG. 1;

FIG. 19 is a schematic plan view schematically showing a position setting step of the terminal feeding mechanism according to the embodiment of FIG. 1;

20 is a perspective view of the terminal crimping device according to the embodiment of FIG.

FIG. 21 is an exploded perspective view showing a part of the terminal crimping apparatus according to the embodiment of FIG. 1;

FIG. 22 is an exploded perspective view of the pressing unit according to the embodiment of FIG.

FIG. 23 is a schematic cross-sectional view of the pressing unit according to the embodiment of FIG. 1;

24 is a block diagram of the terminal crimping apparatus according to the embodiment of FIG.

FIG. 25 is a front view of a control box of the terminal crimping device according to the embodiment of FIG. 1;

FIG. 26 is a schematic side view schematically showing a detection state of a position detection unit provided in the press mechanism according to the embodiment of FIG. 1;

FIG. 27 is a flowchart showing an operation procedure of the terminal crimping device according to the embodiment of FIG.

FIG. 28 is a flowchart showing an operation procedure in a continuous operation mode in the operation procedure of FIG. 27;

FIG. 29 is a flowchart showing an operation procedure of a setting change mode in the operation procedure of FIG. 28;

FIG. 30 is a schematic sectional view of a module according to another embodiment of the present invention.

FIG. 31 is a flowchart showing an operation procedure in a continuous operation mode according to another embodiment of the present invention.

[Explanation of symbols]

2e Lifting ram 1 Pressing device 3 Control box 5 Terminal band 6 Crimp terminal 10 Terminal crimping device 31 Control unit (control means) 100 Terminal feeding mechanism 101 Unit base (movable element) 102 Feed claw block (movable element) 102a Feed claw ( Movable element) 103 setting block (movable element) 103a defining surface 104 unit plate (movable element) 106 slide cylinder (drive means) 110 feed cylinder (drive means) 111 feed amount setting cylinder (drive means) 120 upper guide (movable element) 140 clamp cylinder (drive means, first drive member) 200 press mechanism 210 shank 220 anvil unit 223 insulation anvil 224 wire anvil 230 anvil holder (positioning means) 231 contact surface (position determination) Means) 233 Adjusting bolt (Positioning means) 234 Adjusting bolt (Positioning means) 250 Crimper unit 270 Toggle clamp 300 Crimp height adjusting mechanism 400 Interlocking mechanism 402 Proximity sensor (feeding operation detecting means) 403 Proximity sensor (crimping operation detecting means) M Shank module

Continued on the front page (72) Inventor Yoji Nishiki 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd. (72) Inventor Yoshinori Suzuki 10213-31 Tana, Sagamihara-shi, Kanagawa, Japan 72) Inventor Kaoru Tadaki 10213-31 Tana, Sagamihara-shi, Kanagawa F-term in Union Machinery Corporation (reference) 5E063 CB13 CC05 XA20

Claims (4)

[Claims] 1. A press mechanism for crimping a terminal onto a covered electric wire, and a terminal feed mechanism for feeding a terminal band to the press mechanism, wherein the press mechanism includes a main body assembled to a press device; A terminal crimping device that includes a shank connected to the ram of the press device and a pressing unit driven by the shank, while being guided vertically up and down by the main body, A terminal crimping device comprising an integrally replaceable shank module and detachably connecting the shank module to the main body and the ram. 2. The terminal crimping apparatus according to claim 1, wherein the pressing unit has a wire crimper for caulking a wire barrel formed on the terminal, and an insulation crimper for caulking an insulation barrel. The terminal crimping device according to claim 1, wherein the shank has a crimp height adjusting mechanism for adjusting the height of each crimper of the pressing unit relative to the ram to adjust the height. 3. The terminal crimping device according to claim 1,
Interlocking means for interlocking the elevating operation of the press mechanism and the feeding operation of the terminal feeding mechanism, wherein the interlocking means includes feeding operation detecting means for detecting the feeding operation of the terminal feeding mechanism, and A terminal crimping apparatus, comprising: a crimping operation detecting means for detecting a crimping operation; and a control means for controlling operation of a terminal feeding mechanism and a press mechanism based on detection signals of both detecting means. 4. The terminal crimping device according to claim 1,
An opening / closing member that is provided in the main body portion and that opens and closes between an elevating space for elevating the shank, a detachable posture for attaching and detaching the shank, and a closing posture for restricting detachment of the shank arranged in the elevating space, An operation member for operating the opening and closing operation of the opening and closing member.