JP2011086551A - Desktop type servo terminal crimping machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a desktop servo terminal crimping machine with interchangeability enabling easy attachment and detachment even with different types of manual crimping tools, and yet capable of easily obtaining a crimping terminal with superior quality without the need of skill of a worker, with even a release problem of a ratchet mechanism solved. <P>SOLUTION: The desktop servo terminal crimping machine 100 for crimping a crimping terminal by motor-driving a manual crimping tool K is structured of a frame 10, a driving portion 20, a driving transmission portion 30, a gripping/opening/closing mechanism portion 40 and a driving control portion 60. The gripping/opening/closing mechanism portion 40 is equipped with an adapter 50 enabled to attach and detach crimping tools K of different types, so that the machine 100 releases an open-side ratchet of the ratchet mechanism provided at the manual crimping tool before it enters a normal production mode of crimping terminals, then, gives release direction to a crimping-side ratchet, and at the same time, a release torque is set at a desired crimping position in releasing of the crimping-side ratchet. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a desktop servo terminal crimping machine in which a manual crimping tool is mounted, a core wire portion of a covered electric wire terminal is inserted into a sleeve of a crimping terminal gripped by the manual crimping tool, and crimped integrally by electric drive.

  Conventionally, there has been a manual crimping tool that provides a crimping terminal sleeve and inserts the core wire part of the coated wire terminal into this sleeve and crimps them together by manual operation for easy installation and connection at the electrical construction site. In addition, for mass production of crimp terminals, there are known electric terminal crimping machines that perform the gripping and crimping operations electrically (for example, Patent Document 1 and Patent Document 2).

  However, in recent years, the types of crimp terminals, types, dimensions, and the force required for crimping are diverse, reflecting the diversification and diversification of various types of electrical products. Along with this, manual crimping tools are also required to have various types corresponding to the type of crimping terminal, etc. The size (particularly the shape and dimensions of the lever), the gripping force required for crimping, and the length of the compression process between the levers In addition, the weight and the like are not uniform, and when attached to a conventional electric crimping machine or the like, the workability is remarkably poor because the correspondence to these is not sufficient.

  In addition, there are differences between men and women and individual differences in tool handling and crimping work proficiency, and these cannot be combined to improve the overall production efficiency of crimp terminals. Currently.

  Further, as a unique problem when the crimping tool is operated to be opened and closed electrically, the ratchet mechanism must be released. If this problem cannot be solved, the crimping tool is damaged.

  However, Patent Document 1 does not describe the above problem.

JP-A-5-226056 (Claim 1, FIG. 1) JP 2006-79927 A (Claim 1, FIG. 1)

  The present invention has been made in view of such circumstances. Even if the type of the manual crimping tool is different, the present invention has compatibility capable of being easily attached and detached, and the operator does not need to be skilled. It is an object of the present invention to provide a desktop servo terminal crimping machine that easily obtains a crimp terminal having good quality and solves the problem of releasing the ratchet mechanism.

  In order to solve the above-described problems, a desktop servo terminal crimping machine according to the present invention is a manual crimping tool including a pair of gripping portions pivotally supported by pivot pins and a pair of levers whose other ends are connected to the respective gripping portions. A table-type servo terminal crimping machine that crimps a crimp terminal having a predetermined shape by being electrically driven, the frame, and a drive unit fixed on the frame and including a servo motor as a drive rotation source, A drive transmission unit that transmits driving rotation to a position near the lever of the crimping tool, a gripping / opening / closing mechanism unit that converts the driving rotational force of the drive transmission unit into a lever gripping force and a lever opening / closing force of the crimping tool, A drive control unit that provides a position and torque control signal to the servo motor of the drive unit, and an adapter that allows a different type of crimping tool to be attached to and detached from the gripping / opening / closing mechanism unit In addition, the drive control unit releases the open side ratchet of the ratchet mechanism provided in the manual crimping tool, and then issues a release command for the crimp side ratchet, and also releases a release torque when releasing the crimp side ratchet. A program for setting the crimping position is stored.

  In the desktop servo terminal crimping machine according to the present invention, the drive control unit detects, by torque control, the release position of the crimping confirmation ratchet mechanism of the crimping tool with respect to the servo motor of the drive unit during teaching. It may be.

  In the desktop servo terminal crimping machine according to the present invention, the drive control unit is pre-programmed in the drive control unit so as to release the ratchet on the open side of the ratchet mechanism and then release the ratchet on the crimp side. You may be allowed to.

  In the desktop servo terminal crimping machine according to the present invention, the gripping / opening / closing mechanism section includes a gripping mechanism section for gripping a lever end of the manual crimping tool, and a lever for the gripped manual crimping tool as the drive transmission section. An opening / closing mechanism that opens and closes by a predetermined angle by the driving rotational force of the motor. The gripping mechanism is fixed to a lever end side of the manual crimping tool, and the manual crimping tool is mounted on the opening / closing mechanism. An adapter, and an engaging portion fixed to the opening / closing mechanism portion and detachably engaging the adapter with the opening / closing mechanism portion, the engaging portion being an adapter hook fixed to the adapter side A latch held rotatably on the opening / closing mechanism and an urging means for urging the latch against the adapter hook. When the manual crimping tool is mounted, the adapter hook is The latch is engaged, on the other hand, when detaching the manual crimping tool, said latch against the biasing force of the biasing means may be configured to disengage from the adapter hooks.

  According to the desktop servo terminal crimping machine according to the present invention, even if the type of the manual crimping tool to be mounted on this machine is different, it has compatibility that allows easy attachment and detachment, and the operator is skilled. Even if it is not necessary, a crimp terminal having good quality can be easily obtained, and the productivity of the crimp terminal can be remarkably improved.

  In addition, since this unit is pre-programmed to operate through the teaching mode before entering the normal production mode, it is a safe desktop servo terminal that solves the aforementioned ratchet mechanism release problem. A crimping machine is obtained.

1 is a front view of a desktop servo terminal crimping machine 100 according to the present invention in a state where a manual crimping tool K with an adapter 50 is mounted. It is a top view of the crimping machine 100 of FIG. It is a left view of the crimping machine 100 of FIG. It is a top view of the state which mounted | wore the adapter fixing jig 52 with the crimping | compression-bonding tool K with the adapter 50. FIG. It is a top view of the state which closed the lever L of the manual crimping tool K with the adapter 50. FIG. It is a top view of the state which opened the lever L of the manual crimping tool K with the adapter 50. FIG. It is a flowchart figure of the tool exchange programmed in the drive control part 60 of the crimping machine 100, and teaching mode. 6 is a process diagram of the slider 43 of the driving unit 20 of the crimping device 100. FIG. It is a flowchart figure of the normal mode programmed in the drive control part 60 of the crimping machine 100. FIG. It is a front view which shows the state before the crimping terminal K with the adapter 50 is mounted | worn with the crimping device 100. FIG. It is a front view which shows the mounting completion state of the crimp terminal K with the adapter 50. FIG. It is a front view which shows the start position state by which the crimp terminal 100 with the adapter 50 was mounted | worn with the crimper 100, and the lever opened to the maximum angle. It is a front view which shows the temporary fastening position state of the crimping | compression-bonding tool K. FIG. It is a front view which shows the final fastening position state of the crimping | compression-bonding tool K. FIG. It is a front view which shows the state which removes the crimp terminal K with the adapter 50 from the crimper 100. FIG.

DESCRIPTION OF SYMBOLS 1 Box 10 Frame 20 Drive part 23 AC servo motor 30 Drive transmission part 30 Tool exchange lever tension spring 40 Gripping / opening / closing mechanism part 41 of crimping tool K 41 Gripping mechanism part of crimping tool K 42 Opening / closing mechanism part of crimping tool K 49 Latch 50 Adapter for crimping tool replacement 50c Adapter hook 60 Drive controller 100 Desktop servo terminal crimping machine (present invention)
K Manual crimping tool L Manual crimping tool K lever Y Crimp terminal

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be specifically described with reference to the drawings of the embodiments.

Embodiment 1

  Hereinafter, a preferred embodiment of a desktop servo terminal crimping machine (hereinafter abbreviated as “this machine”) of the present invention will be described with reference to the drawings.

  First, the structure of this machine is demonstrated based on FIGS.

  1 is a front view of the machine 100, FIG. 2 is a plan view thereof, and FIG. 3 is a left side view thereof.

  In FIG. 1, symbol K is a crimping tool to be crimped by the machine 100.

  First, the basic configuration of the machine 100 will be described. The machine 100 is roughly divided into a frame 10, a drive unit 20, a drive transmission unit 30, a gripping / opening / closing mechanism unit 40 for a crimping tool K, and a crimping tool replacement. The adapter 50 and the drive control unit 60 are included.

  Explaining each part, the frame 10 is a metal box 1 as shown in the figure, a fixed rubber pad 2 is attached to the lower part, a power switch 3, an operation panel 4 and a handle 5 are attached to the upper part. ing. In other words, the machine 100 is made lightweight and portable by the handle 5 so that an operator can carry it as necessary.

  The drive unit 20 is a drive source of the machine 100, and includes control units 21 and 22, an AC servo motor 23, and a motor shaft 24.

  Further, the drive unit 20 is provided with a drive control unit 60 so that pulse control and torque control required for the machine 100 can be performed by a command from a CPU (not shown).

  The drive transmission unit 30 is driven by a drive timing pulley 31 fixed to the motor shaft 24, a timing belt 32, a driven timing pulley 36, and the driven timing pulley 36, and is rotatably supported by a right bearing 34 in a cantilever state. The ball screw 35 is supported horizontally.

  The gripping / opening / closing mechanism 40 of the crimping tool K is for converting the rotational torque from the drive transmission unit 30 into the gripping force of the pair of levers L of the crimping tool K and the opening / closing force. The holding mechanism 41 and the opening / closing mechanism 42 of the crimping tool K are provided.

  Of these, the opening / closing mechanism 42 of the crimping tool K is provided with a slider 43 having a substantially Y-shaped arm 44 on the ball screw 35 and a cam roller 45 rotating at the tip of each arm 44, which are ball As the screw 35 rotates, it can be reciprocated in the left-right direction in the figure as a unit.

  On the other hand, the bearing holder 33 is opened and closed by a predetermined angle in the vertical direction of the drawing with a pivot pin 38 pivotally supported by ball bearings 37 (see FIG. 2) at both ends with a gap L. A pair of levers 46 having a predetermined length are provided.

  A pair of plate-like cams 42 a extending in a divergent shape with the ball screw 35 as the center is fixed to the lower side of each lever 46 so as to contact the inside of the cam roller 45. In addition, since a biasing force is applied to each lever 46 so as to always expand in a divergent shape by the lever tension spring 46a, the pair of cam rollers 45 are also attached from the inside to the outside by the cam 42a. Power is acting.

  Therefore, the AC servo motor 23 rotates, and the rotational torque is transmitted to the ball screw 35 through the timing pulley 31 and the timing belt 32, and the ball screw 35 is driven to move the slider 43 to the left from the position in the figure. If so, the contact position between the cam roller 45 and the cam 42a at that position shifts to a position wider than the current position, so that the pair of levers 46 can be opened from each other with the pivot point as a fulcrum.

  On the contrary, if the slider 43 moves to the right of the position in the figure, the contact position between the cam roller 45 and the cam 42a at that position moves to a position that is narrower than the current position. The pivot point can be further closed as a fulcrum.

  The gripping mechanism portion 41 of the crimping tool K grips the crimping tool replacement adapter 50 (hereinafter, abbreviated as “adapter 50”) with the crimping tool K fixed to each lever L together with the adapter 50 to open and close the opening / closing mechanism portion. The adapter 50 is composed of an adapter 50 and an adapter grip 51. The adapter grip 51 is fixed on the pair of levers 46 of the opening / closing mechanism 42 with screws 46b.

  The configuration of the adapter 50 will be described in detail with reference to FIG. 5. The adapter 50 is detachably fixed to the end side of the lever L of the manual crimping tool K, and the grip block 50a. Adapter hook 50c extending from the right side to the end of lever L, a plate-shaped fixing nut 50d having a female screw 50f, and a bolt 50e.

  The gripping block 50a is provided with a bifurcated convex portion 50d so that the lever L can be inserted, and the transverse cross section of each bifurcated convex portion 50d is also bifurcated as shown in the AA cross section on the right side. It is a recess 50b.

  In order to fix the adapter 50 to the end of the lever L, first, the bifurcated convex portion 50d of the grip block 50a is inserted into the lever L, and on the other hand, the fixing nut 50d is applied from the inner side of the lever L to grip the bolt 50e. It penetrates from the block 50a side and is screwed into the female screw 50f of the fixing nut 50d and fixed.

  Note that the fixing method of the adapter 50 is only an example, and there are various types of adapters 50 according to the type of the manual crimping tool K. Therefore, fixing methods other than those described above are also included in this machine. Of course, it is applicable.

  In this way, the adapter 50 fixed to the pair of levers L of this machine has its outer surface S (see FIG. 4) regulated by the inner surface of the dovetail groove (not shown) of the adapter gripping portion 51, thereby Each K can be sliced in the longitudinal direction of the lever 46. However, since the adapter 50 interferes with the adapter grip 51 in the direction perpendicular to the longitudinal direction of the lever 46, it cannot move.

  In addition, after the crimping tool K is mounted on the gripping mechanism 41 at the tip of each lever 46, the crimping tool K is exchanged so that the adapter 50 and the adapter 50 cannot be removed from the gripping mechanism 41. Therefore, in order to remove the crimping tool K from the gripping mechanism portion 41 when it is removed from the gripping mechanism portion 41, a latch mechanism 48 (see FIG. 1) for locking or releasing the adapter hook 50c (see FIG. 4). Reference) is provided.

  That is, the latch mechanism 48 is provided with a latch 49 that can be engaged with or detached from the adapter hook 50c described above at one end of the lever 46, and an L-shaped latch lever 49a at the other end. It is provided so as to be rotatable around a fulcrum pin 49b at the center. A biasing force is applied to the latch lever 49a so that the latch 49 can always be locked to the adapter hook 50c by a latch lever tension spring 49c. Therefore, since the outer surface S of the adapter 50 is pressed against the inner surface (not shown) of the adapter grip 51 by the lever tension spring 49c, the adapter 50 is always in the direction of the adapter grip 51 while the crimping tool K is gripped. Is pressed.

  On the other hand, when taking out the crimping tool K together with the adapter 50 from the gripping mechanism 41, the operator tilts the tool exchange lever 49d against the latch lever tension spring 49c until it tilts to the left from the position shown in the figure, and the latch lever 49a. The latch 49 is disengaged from the adapter hook 50c by kicking up. The tool change lever 49d is normally in a position where the latch 49 is locked to the adapter hook 50c (a broken line position in FIG. 1) by the pulling action of the tension spring 49f in the right direction in the drawing.

  The drive control unit 60 gives predetermined signals such as rotational speed, rotational acceleration, and position control command to the AC servo motor 23 of the drive unit 20, and in this machine, drive pulse control and torque control of the AC servo motor 23 are performed. Are used together.

  Next, referring to the plan view of FIG. 2, the power switch 3 and the operation panel 4 of the machine are provided on the upper surface of the frame 10, and referring to the left side view of FIG. A tool attaching / detaching hole 49e for attaching / detaching to the machine 100 is provided. As shown in these figures, the positional relationship of the ball screw 35 with respect to the frame 10 is centered at a distance H slightly closer to the back surface of the frame 10 because the manual crimping tool K occupies the front surface of the ball screw 35. .

  By the way, as described above, the crimping tool K is different depending on the type, for example, the length of the lever L is large or the thickness of the lever L is different.

  However, in any type of crimping tool K, the interval between the inner surfaces S of the adapters 50 attached to them is set to a constant width H (see FIG. 4), so that the lever L side is the tool. Even if it is inserted from the attachment / detachment hole 49e, it is securely set in the opening / closing mechanism 42 of the crimping tool K. Further, the crimping tool K can be easily removed by the latch mechanism 49.

  The gripping mechanism 41 constituted by the adapter 50 of the crimping tool K and the adapter gripping part 51 described above bears its function. In the present invention, the adapter 50 is dedicated to each crimping tool K. In particular, the adapter fixing jig 52 shown in FIG. 4 is used to solve the compatibility problem of the adapter 50.

  FIG. 4 is a plan view showing a state where the adapter 50 is fixed to the lever L portion of the manual tool K and is set on the adapter fixing jig 52.

  As shown in FIG. 4, the adapter fixing jig 52 has a base that is slightly longer than the entire length of the crimping tool K. On the base 52a, two pins 52b stand across the center line C. It is installed. Each pin 52b is in a position facing the other pin across the center line C, and is parallel to the tangent line (in other words, the outer surface S) in contact with the inside of the adjacent pin 52b. So that it is fixed. That is, the inner tangent line that connects the pair of locking pins 52d straddling the center line C is parallel to the inner tangent line on the opposite side, and the distance between the inner tangent lines is set to a fixed distance H.

  Further, a locking pin 52d of the adapter hook 50c is erected on the lever end side of these pins at a position that is narrower than the distance between the pins.

  As a procedure for using the adapter fixing jig 52, first, the grip block 50a is set inside the pair of lock pins 52d in a state where the hook 50c is locked to the lock pins 52d, and the grip block 50a on the opposite side is set. Set in the same way.

  Then, the fixing nut 50d is tightened with the bolt 50e by the procedure described in FIG. As a result, a manual crimping tool K with an adapter 50 having a parallel regulating surface S that can be attached to the adapter gripping portion 51 of the machine 100 is obtained, and mounting of the adapter 50 of another type of manual crimping tool K is achieved. The same applies to the procedure.

  Therefore, by using the adapter fixing jig 52, the crimping tool K and the adapter 50 are positioned in parallel and at a constant interval H regardless of the shape of the crimping tool K to be mounted on the machine. The relationship can be reproduced anytime and anywhere, and such an adapter fixing jig 52 is prepared in advance according to the type of each crimping tool K.

FIG. 5 is a plan view showing a state in which the crimping tool K with the adapter 50 is taken out from the adapter fixing jig 52 with the lever L closed, and FIG. 6 is a plan view showing a state in which the lever L is opened. .
<Operation of the present invention>
Next, as an operation of the present invention, the handling procedure of the machine 100 will be described step by step based on FIGS.

  The operation of the machine 100 includes two modes: the “adapter mounting process” described above, the “tool change and teaching mode” for operating the machine, and the “WORK mode”.

  Since the “adapter mounting step” is as described above, the “tool change and teaching mode” and the “WORK mode” will be described here.

  The “tool change and teaching mode” is a so-called preparation mode, in which the operation process of the ratchet mechanism of the crimping tool K is performed for each manual crimping tool K mounted on the machine 100 before the start of the crimping operation. This is a process to be stored in the drive control unit 60. When the tool is changed, the drive control unit 60 is programmed so that it is not possible to proceed to the WORK mode unless teaching is performed for safety. If this step is not performed, it is not possible to confirm when the ratchet mechanism of the crimping tool K to be used will work, and the crimping tool K may be destroyed.

  On the other hand, the latter “WORK mode” is an operation mode in which normal crimping work is performed. In this mode, there is a case where temporary fastening is performed by temporarily stopping in the final fastening process, and a case where crimping is performed without performing temporary fastening. There is a mode in which the crimping of the terminal is terminated by crimping to the bottom dead center of the tool K (when the latch (not shown) is released by the ratchet mechanism of the crimping tool K), which can be selected by the changeover switch 4a.

First, the tool change and teaching mode will be described with reference to the flowcharts shown in FIG. 7 and the schematic view of the feed amount of the ball screw 35 shown in FIG.
[Tool change and teaching mode]
FIG. 10 is a front view showing a state where the crimping tool K is not yet attached to the machine 100.

  In the flowchart of FIG. 7, when an operator first depresses the changeover switch 4a (see FIG. 2) of the machine 100 from the “TEACH” side to the “WORK” side and presses the “START” button 4d, the AC servo motor 23 Rotates (S1), the slider 43 moves on the ball screw 35 in the left direction of FIG. 1 by torque control, and the left end of the slider 43 abuts against a resin stopper (not shown) (S2). This position is the I position in FIG.

  In the present embodiment, for the safety of the apparatus, the slider 43 position 50 pulses away from the position is set as the “machine origin” (not shown) (S3), and further 50 pulses away, that is, 100 pulses from the I position. The distant position is referred to as “start position II” (S4), and the II position corresponds in FIG.

  This “start position II” is a position where the lever 46 is expanded to the maximum angle θ1, and corresponds to the state of FIG. Although exaggerated in FIG. 10, the distance between the resin stopper (not shown) and the left end of the slider 43 is a minute distance of about 0.8 mm.

  Next, when the operator switches the switching lever 4a to the “TEACH” side (S5) and presses the “T.NEXT button 4b” (S6), the machine 100 enters the “tool change and teaching mode”.

  When the “T.NEXT button 4b” is pressed, the slider 43 moves to the left, and at the same time, the expansion angle θ2 of the pair of levers 46 is narrowed to be substantially parallel (θ2 = 0), as shown in FIG. The tool K replacement position is reached (S7).

  That is, the crimping tool K after the adapter 50 described above with reference to FIG. 4 is fixed to the lever L is in a position where the crimping tool K can be attached to the machine, and preparation for receiving the crimping tool K into the gripping mechanism 41 of the crimping tool K is completed at this position. It is. At this time, in FIG. 8, the slider 43 is in the tool change position (see position III in FIG. 8).

  Here, if the crimping tool K of the type used last time remains in the machine 100, the tool K is taken out from the tool attaching / detaching hole 49e and replaced with a tool (not shown) of the type to be used from now on. Attach to the gripping mechanism 41 (S8).

  The slider 43 returns to the aforementioned II position and cancels the state where the tool cannot be opened (S9). Subsequently, the servo motor is driven (S10), and the slider 43 moves rightward in FIG. 1 by loop control until it reaches 45% of the rated torque (S11). In this machine, the drive control unit 60 is programmed so that the torque control is performed only in steps 10 to 11 and the above-described step S2, and the pulse control is performed in the other steps.

  When the rotational torque of the drive shaft 24 of the AC servomotor 23 reaches 45% of the rated torque (S12), the position V is stored as a gripping force in the final fastening process in a control unit (not shown) (S12).

  This position V is an arrival position of the slider 43 required for final fastening to be applied to the crimping tool K later. That is, if the lever L of this machine is gripped to this position, the ratchet mechanism of the ratchet mechanism will be disengaged regardless of which type of crimping tool K is used, and a prescribed compressive force is applied to the crimping terminal. In other words, it is the “bottom dead center” of the crimping tool K. In the present embodiment, in order to reach this “bottom dead center”, the drive control unit 60 is set within a range of 15 to 40% of the rated torque of the servomotor 23. This is because if it is less than 15%, the gripping force is insufficient, and if it exceeds 40%, the crimping tool is likely to be destroyed.

  When gripping to this bottom dead center, the ratchet mechanism of the crimping tool K is released simultaneously with the completion of the crimping operation. In this machine, this memory operation is called teaching. In other words, the gripping force necessary for the final fastening process to be used later is made to be learned beforehand for each crimping tool. In FIG. 8, the V position is the left end position of the slider 43.

  Subsequently, since the slider 43 returns to the aforementioned II position by pulse control, the lever L is expanded (S13).

  Subsequently, when the “Feed button” is pressed (S14), the servo motor is driven (S15), and the slider 43 again moves to the right in FIG. 1 to be in the state of the front view in FIG. Here, when the “T.NEXT button 4b” is pressed, the position IV is determined.

  When the “T.NEXT button 4b” is pressed (S17), the slider 43 further moves in the right direction in FIG. 1, the final fastening of the crimp terminal is performed (angle θ4), and the state of the front view of FIG. Become. In FIG. 8, the pulse is moved to the aforementioned final fastening position (V position) stored in the drive control unit 60 (S18).

  Subsequently, the slider 43 immediately moves in pulses to the aforementioned start position II (S19), and a series of tool change and teaching modes are thus completed.

  The series of operations, tool change and teaching time are performed in a very short time of about 30 seconds in total.

  If the “T.NEXT button 4b” is again pressed here, the pair of levers L of this machine becomes substantially parallel (θ = 0), and the tool can be changed as described above. FIG. 15 shows this state.

  Next, the “WORK mode” that is the normal operation mode will be described with reference to the flowchart of FIG. 9.

[WORK mode]
First, the operator tilts the changeover switch 4a from the “TEACH” side to the “WORK” side (S20), and temporarily inserts a wire (not shown) into the crimp terminal Y (see FIG. 13) at the temporary fastening position. Whether to stop the machine is selected by the [Temporary stop / pass switch 4c]. When the stop is temporarily performed, the slider 43 is pulse-moved to the IV position (see FIG. 8), which is the temporary fastening position, and temporarily stops (S23). However, when the switching is [pass], this step is passed. Press [START] to stop at position IV.

  Further, when the operator presses the “START” button 4d (S24), the above-described final fastening is performed, and the slider 43 is pulse-moved to the V position (see FIG. 8) which is the final temporary fastening position. Performed (S25).

  When “pass” is selected with the changeover switch 4c, the “START” button 4d is pressed once to pass the IV position and move to the V position, and the crimping operation is completed.

  Subsequently, the slider 43 returns to the start position by moving the pulse to the II position (see FIG. 8) (S26), and the crimping operation is completed (S28).

  The above cycle time is also performed in a very short time of about 1 second.

In this crimping process, the lever L of the machine is closed until the final tightening and the crimping terminal is compressed, and the crimping terminal is temporarily tightened by temporarily stopping the compression on the way, and the wire Y is connected to the terminal. There is a method to perform final tightening after insertion. This can be selected by the operator. FIG. 13 is a front view showing the temporarily tightened state.
<Effect of the present invention>
According to the desktop servo terminal crimping machine 100 of the present embodiment, many excellent effects described below can be achieved.

1. Unlike the conventional terminal crimping machine, the machine 100 does not use air at all as its driving source, so the entire apparatus is made compact.

  2. The machine 100 can handle any type of crimping tool regardless of the type of crimping tool K used (including machine differences).

  3. The machine 100 can be operated with only one switch operation by simply attaching the crimping tool K to which the adapter 50 is fixed to the gripping mechanism 41.

          Therefore, even if the type of the crimping tool K to be used is different and there are machine differences, no skill is required, and crimping work of the crimping terminal is possible regardless of gender. In addition to the adapter fixing jig 52, tools such as a spanner and a monkey wrench are not required at all, so that so-called tool-less tool change and crimping operations can be realized.

    4). Furthermore, when the tool is changed, the teaching mode must be passed through. Therefore, a reliable release position of the ratchet mechanism can be obtained even if the type of the manual crimping tool K is different. K will not be destroyed by mistake.

    5). Since the cycle time required for the crimping operation is remarkably short, about 1 second, the productivity of the crimp terminal Y is dramatically improved.

    6). In addition, since the time from the tool change to the end of the teaching process is as short as about 30 seconds, the productivity of the crimp terminal is remarkably improved.

  Although one embodiment of the present invention has been described above, the present invention can be modified to other various embodiments within the scope of the technical idea of the present invention, and these are also within the scope of the present invention. Of course, it is included. For example, in the above embodiment, the machine 100 has been described as a dedicated machine for one manual crimping tool K. However, a plurality of manual crimping tools of the same or different types are lined up in a line, and each tool The productivity of the crimp terminal may be improved by providing a host control unit that manages and manages the control unit.

  Although the present invention has mainly described the crimping tool K for the crimping terminal Y, other tools such as pliers, nippers, strippers, etc., that perform predetermined operations such as gripping and cutting by holding the lever with an appropriate force, for example. For example, it can be preferably applied to these.

Claims (3)

A desktop type that crimps a crimp terminal with a predetermined shape by electrically driving a manual crimping tool with a pair of gripping parts pivotally supported by pivot pins and the other end connected to each gripping part. Servo terminal crimping machine,
Frame,
A drive unit fixed on the frame and provided with a servo motor as a drive rotation source;
A drive transmission portion for transmitting the drive rotation to a position near the lever of the crimping tool;
A gripping / opening / closing mechanism for converting the driving rotational force of the drive transmission unit into a lever gripping force and a lever opening / closing force of the crimping tool;
A drive control unit for providing a position and torque control signal to the servo motor of the drive unit;
In the gripping / opening / closing mechanism part, an adapter is provided that allows a different type of crimping tool to be attached and detached,
When the release control ratchet of the ratchet mechanism included in the manual crimping tool is released to the drive control unit, and then a release command for the crimping ratchet is given, a release torque is applied to the drive control unit in a desired crimping. A desktop servo terminal crimping machine, which stores a program to set the position.   2. The desktop type according to claim 1, wherein the drive control unit detects a release position of a crimping confirmation ratchet mechanism of the crimping tool with respect to a servo motor of the drive unit during teaching by torque control. Servo terminal crimping machine. The gripping / opening / closing mechanism unit includes a gripping mechanism unit that grips a lever end of the manual crimping tool, and an opening / closing mechanism that opens and closes the gripped manual crimping tool lever by a driving rotational force of the drive transmission unit by a predetermined angle. And consists of
The gripping mechanism is fixed to a lever end side of the manual crimping tool, an adapter for mounting the manual crimping tool on the opening / closing mechanism, and an adapter for fixing the manual crimping tool to the opening / closing mechanism. An engaging portion that is detachably engaged with the mechanism portion,
The engaging portion comprises an adapter hook fixed to the adapter side, a latch rotatably held on the opening / closing mechanism portion side, and a biasing means for biasing the latch to the adapter hook,
When the manual crimping tool is mounted, the latch is locked to the adapter hook. On the other hand, when the manual crimping tool is removed, the latch is moved against the biasing force of the biasing means. The desktop servo terminal crimping machine according to any one of claims 1 to 3, wherein the desktop servo terminal crimping machine is separated from the hook.

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