Hereinafter, a replacing apparatus for a terminal forming mold apparatus according to the embodiment will be described.
<1. Overall configuration of wire processing device>
First, the overall configuration of a wire processing apparatus to which a replacement apparatus for a terminal forming mold apparatus is applied will be described. 1 is a schematic plan view showing a schematic structure of a wire processing apparatus 10; This electric wire processing apparatus 10 is provided with a cutting unit 112, an infiltration unit 114, a wire conveying unit 14 and a terminal compression unit 20.
The cutting unit 112, and the long wire W wound on the take-up reel or the like can be cut to a predetermined length. For example, a pair of V-shaped blades are used for the cutting of the electric wire W. [ Further, the infiltration unit 114 is configured to be able to cover the covering portion of the end portion of the electric wire W. For example, by using a pair of V-shaped blades.
The terminal crimping unit 20 is constituted such that the terminal can be crimped on the end portion of the electric wire W to which the covering portion of the end portion is cushioned.
The wire conveying unit 14 is provided with a plurality of grippers 15 capable of gripping and gripping the ends of the electric wires W. The plurality of grip portions 15 pass through the front of the cutting unit 112, the rubber stopper insertion unit 113, the infiltration unit 114 and the terminal compression unit 20 at predetermined intervals by driving of a conveyor or the like And sequentially from the rubber plug inserting unit 113 and the infiltration unit 114 toward the terminal crimping unit 20 while holding both ends of the electric wire W processed by the cutting unit 112 Move. Thus, in a state in which the electric wire W cut to a predetermined length is bent in a U-shape and the end portion is directed toward the rubber stopper insertion unit 113, the infiltration unit 114, and the terminal compression unit 20, (112) to the terminal compression unit (20). Further, if necessary, a rubber plug is inserted into the end portion of the electric wire W by the rubber plug inserting unit 113. [ Also, the rubber stopper insertion unit 113 may be omitted.
This wire processing apparatus 10 is a device for continuously performing a process of cutting a long wire W to a predetermined length, a process of covering the end portion of the wire W, and a process of pressing the terminal to the end of the wire W . A replacement apparatus 30 of the terminal forming mold apparatus 32 is incorporated in the terminal crimping unit 20.
<2. Overall configuration of terminal crimping unit>
The overall configuration of the terminal crimping unit 20 will be described. The terminal crimping unit 20 is a unit which is incorporated in the wire conveying unit 14 and which presses the terminal to the end of the electric wire W conveyed by the wire conveying unit 14 and presses the terminal pressing table 22, And a replacing device 30 for exchanging the terminal forming mold apparatus 32 disposed therebetween.
The terminal pressing table 22 is a plate-shaped member and is supported in a horizontal posture along the conveying line L of the electric wire W by the electric wire conveying unit 14 by a stand (not shown) or the like. The terminal pressing table 22 is provided with a setting recess 23 which is recessed from the side opposite to the wire conveying unit 14 toward the wire conveying unit 14. [ A supporting base 46 (to be described later in detail) is disposed in the setting recess 23 so as to be movable forward and backward. The terminal shaping mold apparatus 32 is rotated with respect to the support base 46 in the state in which the support base 46 enters the setting recess 23 so that the terminal shaping mold apparatus 32 is rotated Is arranged along the conveying line (L) by the unit (14).
The cutting unit 112, the rubber stopper insertion unit 113, the infiltration unit 114, and the terminal compression unit 20 are arranged so as to be spaced apart from each other, Each operation is performed during the stopping period of each gripper 15. When the terminal crimping operation time in the terminal crimping unit 20 is longer than the working time in the cutting unit 112, the rubber plug inserting unit 113 and the infiltration unit 114, the respective processing times are synchronized as follows .
That is, as shown in Fig. 2, the wire relay unit 200 is provided between the wire conveying unit 14 and each of the terminal crimping units 20. 2 and the like will be described in relation to the terminal crimping unit 20 on one side, but the wire carrying unit 200 can be provided on the other terminal crimping unit 20 as well.
The wire relay unit 200 moves the end of the electric wire 13 toward the terminal compression unit 20 after receiving the end of the electric wire 13 from the grip unit 15 at a predetermined position, After the terminal crimping operation is performed on the end portion of the electric wire 13, the electric wire is transmitted to the grip portion 15 at a position on the downstream side in the carrying direction of the end portion of the electric wire 13 than the position where the electric wire 13 is received have.
More specifically, the wire relay unit 200 includes a grip portion 202 for gripping a wire, and an XY moving mechanism portion 204 including a moving mechanism portion in a carrying direction and a moving mechanism portion in a direction perpendicular to the carrying direction portion . Here, the wire relay unit 200 further includes a lifting / moving mechanism 203 for moving the gripper 202 in the lifting direction. Each of the moving mechanism units is constituted by an air cylinder, a linear motor or the like. The grip portion 202 is constituted by an air cylinder or an electromagnetic chuck or the like.
At the timing at which the plurality of grip portions 202 are conveyed along the conveyance line and one of the grip portions 202 stops at the immediately upstream side of the terminal compression unit 20, As shown in Fig. In this state, the end of the electric wire 13 is received from the grip portion 202, and gripping by the grip portion 202 is released.
3, in order to avoid interference between the wire 13 and the transfer unit 14, the gripping section 202 is raised by the elevating movement mechanism section 203, and the XY moving mechanism section 204 is driven The grip portion 202 is moved toward the terminal crimping position by the terminal crimping unit 20. [
4, by moving the grip portion 202 toward the return position on the downstream side of the delivery position by the driving of the XY movement mechanism portion 204, the lifting and moving mechanism 203, The grip portion 202 is lowered. Then, the end of the electric wire 13 is transmitted to the grip portion 202 at that position, and the gripping by the grip portion 202 is released.
In this example, the movement of the end of the electric wire 13 and the terminal crimping operation can be performed using the stopping time of the gripping part 202 and the moving time of two times. Therefore, the time of one minute or more of the stopping time of the gripper 202 can be used for the terminal crimping operation. Thereby, even when the respective processing times performed along the transfer line are different, efficient processing can be performed by synchronizing the respective processing times.
The pressing press mechanism portion 28 is a mechanism for imparting reciprocating linear motion to the terminal forming die device 32 and is constituted by an air cylinder, a hydraulic cylinder, a mechanism for combining a motor and a cam, and the like. The pressing press mechanism portion 28 is disposed above the terminal pressing table 22 and at one side of the setting recess 23. As described above, in a state in which the terminal forming mold apparatus 32 is disposed along the conveying line L by the wire conveying unit 14, the pressing press mechanism section 28 is provided above the terminal forming mold apparatus 32 . Thereby, the pressing press mechanism portion 28 can give a pressing force to press the terminal against the lower terminal molding die apparatus 32. In this embodiment, a press support post 28a for supporting the press mechanism 28 is disposed at a position on the side of the setting recess 23. The surface of the support post 28a on the setting recess 23 side is formed as a concave recess concave toward the side away from the setting recess 23 so as to avoid the turning locus of the pressing body 36 described later Reference).
In this embodiment, since the terminals are to be compressed at both ends of the electric wire W, two pressing structures such as the setting concave portion 23 and the pressing press mechanism portion 28 are provided. Hereinafter, a configuration in which the terminal is pressed on one end side of the electric wire W will be mainly described.
<3. Description of exchange device>
The exchanging device 30 of the terminal shaping mold apparatus 32 is provided with an exchange rack 40 on which the terminal shaping mold apparatus 32 is mounted and the exchange rack 40 is connected to the terminal pressing table 22, And the terminal forming die device 32 is exchanged with the pressing press mechanism section 28. [
The exchange rack 40 itself may be manually set and exchanged for the terminal crimping table 22, but in the present embodiment, the setting and exchange of the terminal crimping table 22 can be performed automatically Consists of. Hereinafter, each subcomponent will be described.
<3. 1. Replacement rack>
Fig. 5 is a side view showing the exchange rack 40, Fig. 6 is a rear view showing the exchange rack 40, Fig. 7 is a plan view showing the exchange rack 40, Fig. 10 is an explanatory view showing a rotating operation of the terminal forming die apparatus 32 in the rack 40. Fig.
The exchange rack 40 includes a replacement frame 42, a terminal molding die unit 32, and a reel support unit 48.
The exchange frame 42 constitutes the basic skeleton of the present exchange rack 40 and includes a column portion 43, a lower frame portion 44, and a support base portion 46.
The column portion 43 is a bar-shaped member formed of metal or the like, and is disposed along the vertical direction.
The lower frame part 44 is an elongated plate-like member formed of metal or the like, and the lower end of the columnar part 43 is connected and fixed in the orthogonal posture at the center in the longitudinal direction. At both ends of the lower frame portion 44, a wheel 45 is provided. The present replacement frame 42 can be easily moved by rolling the wheel 45 on the floor while the present replacement rack 40 is removed from the main replacement apparatus 30. [
The support base 46 is formed of an elongated plate member formed of metal or the like. The width of the support base 46 is substantially the same as the width of the terminal forming die apparatus 32 and is also substantially the same as the width of the setting recess 23.
The support base portion 46 is movably supported on a pair of guide members to be described later so that the support base portion 46 is supported by the terminal pressing table 22 and the pressing press mechanism portion 28 along the direction crossing the transfer line L As shown in Fig. However, the supporting base portion 46 may be movable along the direction crossing the carrying line L by a wheel or the like provided below the exchange frame 42. [ In the present embodiment, the support base 46 is described as moving along the direction orthogonal to the transfer line L, but may be moved in a direction intersecting obliquely with the transfer line L at 45 degrees or the like .
A support shaft portion 47 is provided at one end of the support base portion 46 and the mold support base portion 34 of the terminal molding die apparatus 32 is rotatably supported by the support shaft portion 47 . The support shaft portion 47 protrudes downward from the support base portion 46. The support base portion 46 is fixed at a predetermined position using the support shaft portion 47 in a state where the present base portion 46 is disposed in the setting recess portion 23. [
In addition, a terminal supporting recess 46g is formed at one end of the supporting base 46. [ The terminal-carrying recess 46g is formed by recessing the substantially entire widthwise direction of one end of the supporting base 46 and extending along the longitudinal direction of the supporting base 46 from one side of the recessed portion. And is formed in a concave L-shaped shape. The chain terminal T, which will be described later, is sent toward the terminal forming mold apparatus 32 via the terminal transfer concave portion 46g.
At the other end of the supporting base portion 46, a frame projecting portion 46p is formed. The frame transfer protrusion 46p is formed in the shape of a short bar in this case and the terminal clamping table 22 and the replacement rack 40 Is carried out.
The terminal shaping mold apparatus 32 has a rectangular elongated rectangular mold supporting base portion 34 and a pressed main body portion 36.
The mold supporting base portion 34 is formed to have a width substantially equal to the supporting base portion 46 and the length dimension of the mold supporting base portion 34 is shorter than the length dimension of the supporting base portion 46. One end of the mold support base 34 is rotatably supported on the upper surface side of one end of the support base 46 through the support shaft 47. The one end of the mold supporting base portion 34 is provided with a chain terminal guide portion 35 for guiding the chain terminal T received from the lower side along the vertical direction and guiding the chain terminal T to the terminal forming mold apparatus 32. The chain terminal guide portion 35 is formed by a plate member extending downward from one end of the mold supporting base portion 34. [ The chain terminal T received from the lower side of the terminal shaping mold apparatus 32 passes through the inside of the main chain terminal guide section 35 and extends from the one end of the mold supporting base section 34 to the mold supporting base section 34 And is sent to the pressing main body portion 36. In the pressing main body portion 36, The upper space of one end of the mold supporting base 34 is passed through the chain terminal T in the horizontal direction toward the compression main body portion 36 when the chain terminal T is directed toward the compression main body portion 36 And functions as a space for securing a path.
The crimping main body portion 36 includes a pair of pressing molds for pressing the terminal against the end of the electric wire W. The crimping body 36 is connected to the end of the electric wire W conveyed by the electric wire carrying unit 14, As shown in Fig. The pressing main body portion 36 is fixedly attached to the other end portion of the mold supporting base portion 34.
The terminal forming die apparatus 32 is disposed along the longitudinal direction of the support base 46, that is, the posture in which the longitudinal direction of the die support base 34 is along the longitudinal direction of the support base 46, In the posture, the pressing body portion 36 is disposed on the supporting base portion 46 (see Fig. 12). This posture is the waiting posture. In this state, the chain terminal guide portion 35 is disposed in the concave portion recessed along the width direction of the support base portion 46 among the terminal transfer concave portions 46g.
The terminal forming mold apparatus 32 is rotated so that the longitudinal direction of the mold supporting base portion 34 intersects with the longitudinal direction of the supporting base portion 46 so as to follow the conveying line L (That is, orthogonal to the supporting substrate) so as to follow the conveying line L, the pressing main body portion 36 is moved from one end of the supporting base portion 46 (See Fig. 13). This posture is the work posture. In this state, the chain terminal guide portion 35 rotates around the support shaft portion 47 integrally with the terminal forming mold apparatus 32, and the support base portion 46 of the terminal transfer recess 46g is rotated, In the concave portion along the longitudinal direction of the concave portion.
Further, as a top surface of one end of the mold supporting base portion 34, a posture changing protrusion 35b protrudes from a position around the support shaft portion 47. [ More specifically, at the standby posture, a posture changing projection portion 35b is provided at a position near one corner of one end of the support base portion 46 to protrude. When the posture changing projection portion 35b is moved from one end of the support base portion 46 toward the other end portion of the support base portion 46, (See Figs. 12 and 13).
The replacement frame 42 is provided with a reel supporting portion 48 for rotatably supporting the terminal reel 49. The terminal reel 49 has a take-up shaft portion 49a and a pair of flange portions 49b and a plurality of terminals are connected to each other through a connection band by a chain terminal T around a winding shaft portion 49a. And is wound and housed between the support portions 49b. The terminal reel 49 has a flat overall shape along the direction of the pair of flange portions 49b. In addition, a paper tape P is interposed between the adjacent terminals T as an interlayer. This paper tape P suppresses entanglement of the chain terminals T between the respective layers.
The reel support portion 48 rotatably supports the terminal reel 49 in a posture that follows the movement direction of the support base portion 46. [ More specifically, the reel supporting portion 48 includes a projection 48a protruding in the longitudinal middle portion of the column portion 43 and a supporting shaft portion 48b protruding from the end of the projection 48a. The supporting shaft portion 48b has a central axis orthogonal to the moving direction of the supporting base portion 46 so that the terminal reel 49 is rotated about the central axis orthogonal to the moving direction of the supporting base portion 46 The terminal reel 49 is rotatably supported in a posture in which the terminal base 49 is moved along the movement direction of the support base 46. [ This makes it possible to arrange the extending direction of the terminal reel 49 and the extending direction of the support base 46 in the same direction as seen in plan view and can reduce the installation space viewed from the plane of the exchange rack 40 have.
Further, the reel supporting portion 48 is provided below the supporting base portion 46. The chain terminal T drawn out from the terminal reel 49 supported by the reel support portion 48 is guided in the up and down direction through the chain terminal guide portion 35, .
The exchange frame 42 is provided with a guide mechanism portion 120 for guiding the terminal T and detecting the state thereof. Here, a guide frame 43g is extended from the column portion 43 to extend in a horizontal posture, and a guide mechanism portion 120 is provided at the distal end portion thereof.
As shown in FIGS. 8 to 10, the guide mechanism unit 120 includes a lower guide part 122 and an upper guide detection part 124.
The lower guide portion 122 is a member formed of a metal plate or the like, and has a plurality of curved portions (two in this case) formed in such a manner as to curve a gentle curve along the conveying direction of the terminal T. The lower guide portion 122 is fixedly attached to the distal end portion of the guide frame 43g at a predetermined position and in a predetermined posture.
The upper guide detecting portion 124 includes an upper guide plate portion 125 and a dog portion 126. The dog portion 126 is a long member, and one end of the dog portion 126 is rotatably supported at the distal end portion of the guide frame 43g. The upper guide plate portion 125 is a member formed of a metal plate or the like, and both end portions of the elongated plate-shaped portion are formed in a bent shape while gently curving. The upper guide plate portion 125 is fixed to one end of the dog portion 126 so as to face the lower guide portion 122. The dog portion 126 is fixed to the lower guide portion 122 in an inclined posture. By the weight of the upper end portion of the dog portion 126 and the end portion on the same side of the upper guide plate portion 125 (the end on the downstream side in the feeding direction of the terminal T) in the state in which no external force is applied, (Initial posture) in which the end on the downstream side in the conveying direction of the terminal T faces downward.
A switch SW1 and a switch SW2 are provided on the other end side of the dog portion 126 for detecting the dog in contact with the dog portion 126. [ The ON / OFF signals of the switch SW1 and the switch SW2 are given to a control unit described later.
When there is no chain terminal T between the lower guide part 122 and the upper guide detecting part 124, the lower guide part 122 is in the initial position (see FIG. 8). In this state, the dog portion 126 does not contact any of the switches SW1 and SW2.
9, when the chain terminal T is disposed between the lower guide part 122 and the upper guide detecting part 124, the upper guide plate part 125 is lifted by the terminal T , And the upper guide plate portion 125 is in a parallel posture (usually a posture) with respect to the lower guide portion 122. In this state, the dog 126 contacts the switch SW1, and a signal corresponding to this contact is sent from the switch SW1 to the control unit.
10, when the terminal T is further pulled from the above state as the terminal crimping progresses, the terminal T is pulled by the terminal T toward the downstream side in the feeding direction of the terminal T of the upper guide plate portion 125 And the upper guide plate portion 125 is lifted up (the overturned posture) at the downstream end of the terminal T in the conveying direction. In this state, the dog 126 contacts the switch SW2, and a signal corresponding to this contact is sent from the switch SW2 to the control unit.
A paper tape take-up reel 100 for retracting the paper tape P is rotatably supported on the lower portion of the column portion 43. A gear portion 102 that rotates integrally with the paper tape take-up reel 100 is rotatably supported on the opposite side of the paper tape take-up reel 100 with the column portion 43 therebetween. Here, on the side of the pressing table 22, a paper tape winding drive section 110 is provided. The paper tape winding drive unit 110 includes a rotation drive unit 111 such as a motor and a gear unit 112 driven to rotate by driving the rotation drive unit 111. [ The gear portion 102 of the replacement frame 42 and the gear portion 112 of the paper tape take-up driving portion 110 are engaged with each other in the state in which the present exchange rack 40 is set on the pressing table 22 . When the paper tape take-up driving section 110 is driven to rotate in accordance with a command of a control unit to be described later, the rotational movement is transmitted to the paper tape take-up reel 100 through the gear section 112 and the gear section 102. Thereby, the paper tape take-up reel 100 is driven to rotate, and the paper tape P is wound.
The control unit, which will be described later, rotates and drives the paper tape take-up drive unit 110 to wind the paper tape P when it is determined that the overturned state has been established based on the detection signal of the switch SW2. As a result, the terminal reel 49 rotates in the direction in which the terminal T is fed, and the overtight state of the terminal T is relaxed. When the terminal T is loosened between the terminal reel 49 and the terminal forming mold apparatus 32, the dog unit 126 returns to the normal transfer position. The control unit stops rotation of the paper tape take-up driving part 110 to stop the winding of the paper tape P when it is judged that the normal feeding attitude has been reached based on the detection signals of the switches SW1 and SW2 do. The terminals T are fed toward the terminal forming mold apparatus 32 in an appropriate tension state by repeating the above process during the terminal crimping process to be described later.
The terminal T may be wound in the opposite direction to the terminal reel 49 as in the replacement rack 40B shown in Fig. In this case as well, the terminal T and the paper tape P can be continuously fed as described above by setting the processing path of the terminal T and the paper tape P appropriately.
The chain terminal T that is sent from the terminal reel 49 is not twisted and passes through the chain terminal guide portion 35 to be held in the pressing main body portion 36 As shown in FIG. From this state, when the terminal shaping mold apparatus 32 rotates in the working posture, the chain terminal guide section 35 also rotates together with the terminal shaping mold apparatus 32. The chain terminal T drawn out from the terminal reel 49 is twisted (here, 90 degrees) in accordance with the rotation angle of the terminal forming mold apparatus 32 and then reaches the chain terminal guide section 35, And is then sent toward the pressing body portion 36. [ Since the chain terminal T is twisted at a portion crossing over a relatively long dimension between the terminal reel 49 and the chain terminal guide portion 35, the chain terminal T is smoothly conveyed in spite of the twist. In addition, since the chain terminal T is mainly twisted at the portion that is transported along the up and down direction, the twist is difficult to be caught by the chain terminal guide portion 35, and from this point, It is smoothly conveyed.
The exchange rack 40 can be manually exchanged with the terminal pressing table 22 and manually rotated to rotate the terminal forming mold apparatus 32 from the atmospheric attitude to the working attitude, It may be set to the pressing table 22. Since the switching device 30 adopts a configuration for automatically performing these operations, each configuration will be described.
<3. 2. Configuration for automatically exchanging the terminal forming mold device>
A configuration for automatically exchanging the exchange rack 40 will be described. Fig. 14 is a schematic plan view showing the exchange mechanism 50 for inserting and receiving the exchange rack 40 in the present exchange apparatus 30, Fig. 15 is a schematic side view showing the exchange mechanism 50, Is a rear view schematically showing the access switching mechanism unit 50. As shown in Fig.
The exchange mechanism 50 includes a rack support frame 54, an exchange mechanism 60, and a rack / retract mechanism 64. The rack /
That is, on the opposite side of the wire conveying unit 14 to the terminal pressing table 22, the access support frame 52 is provided. The entry / exit support frame 52 is a three-dimensional frame structure assembled from a metal bar-shaped member. Here, the entry / exit support frame 52 is formed in a rectangular parallelepiped frame shape.
The rack support frame 54 supports the plurality of exchange racks 40 in a parallel state at a position spaced apart from the transfer line L. [ Here, the rack support frame 54 is provided with a horizontal support frame 54a and a downward support frame 54b, and a pair of guide members 55 are provided in a plurality of sets (here, two sets).
The horizontal support frame 54a is arranged along the conveying line L at the front and rear portions of the support frame 52. [ And a supporting frame 54b is provided under the lower ends of both the lateral support frames 54a and the intermediate portions thereof. A plurality of pairs of guide members 55 are provided so as to cross between the front and rear support frames 54b of the support frame 52. A pair of guide members 55 of each group are arranged in a posture along the conveying line L, and are arranged to be arranged in a parallel posture. Thus, by disposing the rack support frame 54 relative to the pair of guide members 55 of each group, the support base portions 46 are supported in a parallel state.
The pair of guide members 55 are arranged at intervals corresponding to the width of the support base 46. By arranging the side edge portions of the support base 46 on the pair of guide members 55, The supporting base portion 46 is movable between the pair of guide members 55 along the extending direction thereof with respect to the terminal pressing table 22. At this time, the wheel 45 of the exchange rack 40 may float from the floor, or the wheel 45 may roll on the floor. Further, a roller or the like may be provided at a portion of the guide member 55 which is in contact with the supporting base portion 46.
Further, the rack support frame 54 can be inserted into and dismounted from the rear side thereof. The replacement rack 40 is removed from the rack support frame 54 to be replaced with another compression body 36 or the like and the compression body 36 can be maintained or the like.
The exchange mechanism 60 moves one of the plurality of exchange racks 40 supported in parallel by the rack support frame 54 by moving the rack support frame 54 along the transfer line L, Is disposed at a position corresponding to the terminal crimp storage position in the transfer line L, that is, at a position corresponding to the setting recess 23.
Here, the replacement movement mechanism unit 60 is provided with an exchange drive unit 61 constituted by a linear actuator such as an air cylinder or a hydraulic cylinder. Here, the replacement drive portion 61 is provided on one side of the front side and the rear side (here, the rear side portion) of the support frame 52. The exchange drive section 61 includes a main body section 61a fixed to the entry / exit support frame 52 in a posture along the transfer line L and a guide section 61b which reciprocates in the direction along the transfer line L with respect to the main body section 61a. And a movable movable portion 61b. One lateral support frame 54a of the rack support frame 54 is connected to the movable portion 61b of the replacement drive unit 61. [ The other portion (front portion) of the rack support frame 54 and the like may be movably supported along the conveying line L by the linear guide 62. [ The rack support frame 54 is moved along the transfer line L together with the plurality of exchange racks 40 by the drive of the exchange drive unit 61 so that the plurality of exchange racks (40) can be disposed at a position corresponding to the setting recess (23).
The configuration for moving the rack support frame 54 along the transfer line L is not limited to the above example. For example, the front and rear portions of the rack support frame 54 may be supported by a linear guide, and a portion therebetween may be moved and driven by a replacement drive unit such as a linear actuator.
The rack and retract mechanism portion 64 is disposed at a position corresponding to the terminal pressing and holding position among the plurality of exchange racks 40, that is, the one disposed at a position corresponding to the setting recess portion 23 is referred to as a conveying line L ).
That is, the rack advancing and retracting mechanism 64 includes a rack advancing and retracting driving portion 65 constituted by a linear actuator such as an air cylinder or a hydraulic cylinder. The rack advance and retreat drive unit 65 includes a main body portion 65a fixed to the support frame 52 along the moving direction of the support base portion 46, And a movable portion 65b reciprocating along the moving direction of the movable portion 65b. The position where the body portion 65a of the rack advance / retract drive portion 65 is fixed is the position corresponding to the terminal compression / accommodation position, that is, the outward position of the setting recess portion 23. The movable portion 65b is formed with a U-shaped conveying member 66 which is opened downward as viewed from the side (the moving direction of the rack supporting frame 54). At a height position such that the frame projecting portion 46p at the other end of the supporting base portion 46 supported by the rack supporting frame 54 is inserted into the conveying member 66 from the side thereof, (65) is fixed to the entry / exit support frame (52) via a bracket (67).
When the exchange rack 40 is attached to or removed from the rack support frame 54, a portion between the pair of guide members 55 to be the object is removed from the rack advance / retreat drive portion 65 As shown in Fig. Thereby, the exchange rack 40 can be attached to or removed from the rack supporting frame 54 without interfering with the feeding member 66. [
When the one of the plurality of exchange racks 40 is moved toward the terminal pressing table 22, the rack support frame 54 is moved along the transfer line L by driving the exchange movement mechanism portion 60 So that the exchange rack 40 to be a target is disposed at a position corresponding to the rack advancing / retracting driving portion 65, that is, at a position directly below. Then, the frame transfer protrusion 46p is disposed in the transfer member 66. [ In this state, when the conveying member 66 is moved toward the terminal pressing table 22 by driving the rack advancing / retreating driving unit 65, the conveying member 66 moves the exchange rack 40 to the terminal pressing table 22, . Thus, the exchange rack 40 moves toward the terminal pressing table 22, the support base 46 moves toward the setting recess 23, and the terminal molding die apparatus 32 is moved, as described later, Is set on the terminal pressing table 22. When the feeding member 66 is moved toward the rear of the entry / exit frame 52 by driving the rack forward / rearward driving section 65 from this state, the feeding member 66 moves the exchange rack 40 to / And pushes it toward the rear of the frame 52. Thereby, the exchange rack 40 moves toward the inside of the entry / exit support frame 52, and returns to the inside of the rack support frame 54 between the pair of guide members 55. In this way, the exchange rack 40 is inserted in and out of the rack support frame 54 and the terminal pressing table 22.
<3. 3. Configuration for automatically setting the terminal forming mold device>
A configuration for automatically setting the exchange rack 40 on the terminal pressing table 22 will be described. 18 is a schematic view showing the rack fixing mechanism 70, FIG. 20 is a schematic view showing the posture changing mechanism 80, and FIG. 21 is a schematic view showing the posture changing operation Fig. 22 is a schematic view showing the mold apparatus fixing mechanism 76. Fig.
The terminal pressing table 22 is provided with the setting recess 23 as described above and the supporting base 46 moves toward the setting recess 23. The setting recess 23 is formed to have a length dimension to such an extent that a portion of the support base portion 46 where the terminal forming die apparatus 32 is disposed can be disposed. The width of the setting recess 23 is set to be smaller than the width of the support base 46 and the guide rail 23r is provided on the upper surface of both sides of the setting recess 23 have. When the support base portion 46 is moved toward the setting recess portion 23, the support base portion 46 is sandwiched between the pair of guide rails 23r and the both side edge portions thereof are arranged on the upper surfaces of the side edge portions of the setting recess portion 23 State.
A rack fixing mechanism portion 70, a posture changing mechanism portion 80 and a mold device fixing mechanism portion 76 are provided in the vicinity of the setting recess portion 23 of the terminal pressing table 22.
17 and 18, the rack fixing mechanism 70 fixes the exchange rack 40 at a predetermined position with respect to the setting recess 23. More specifically, the rack fixing mechanism portion 70 includes a pressing driving portion 72 constituted by an actuator such as an air cylinder or a hydraulic cylinder, and a pressing portion 74 arranged to be capable of advancing and retreating by the pressing driving portion 72 (See Figs. 17 and 18). The pressing drive section 72 and the rack fixing mechanism section 70 are fixed to the lower side of the terminal pressing table 22 as one side of the support shaft section 47 of the setting recess section 23. [ The pressing portion 74 is formed by a long and elongate rod-like member, and a concave portion 74g capable of disposing the supporting shaft portion 47 is formed on one side surface thereof. The pushing portion 74 is driven to advance and retract toward the support shaft portion 47 projecting downwardly of the support base portion 46 by the rack fixing mechanism portion 70. [ The supporting base portion 46 is moved toward the setting concave portion 23 with the pressing portion 74 retracted so that the supporting shaft portion 47 is disposed at a position facing the concave portion 74g. In this state, when the pushing portion 74 is advanced and driven by the driving of the pushing drive portion 72, the pushing portion 74 is pulled out of the support shaft portion 47 ). As a result, the side edge portion of the supporting base portion 46, which is pressed, is pressed against the guide rail 23r. Thereby, the supporting base portion 46 is fixed so as not to rattle along its width direction. The supporting base portion 46 can be positioned and fixed even in the longitudinal direction of the supporting base portion 46 by inserting the supporting shaft portion 47 into the concave portion 74g. When the replacement rack 40 is retracted, the pushing portion 74 is retracted by the driving of the pushing drive portion 72, and the fixed state is released.
17, 20, and 21, the posture changing mechanism unit 80 is configured to move the terminal forming mold apparatus 32 in the waiting posture (L) The posture of the terminal forming die apparatus 32 is changed from the working posture to the waiting posture before the support base 46 moves backward from the transfer line L. [
More specifically, the posture changing mechanism unit 80 includes a posture change driving unit 82, a latch driving unit 84, and an operation member 86.
The posture change drive unit 82 is constituted by a linear actuator such as an air cylinder or a hydraulic cylinder and is fixed at a position above the terminal compression table 22 as one side of the setting recess 23.
The latch drive part 84 is constituted by a linear actuator such as an air cylinder or a hydraulic cylinder. The engaging drive unit 84 is reciprocatingly linearly driven by the attitude change driving unit 82 along the extending direction of the setting recess 23, that is, the advancing / retracting direction of the supporting base 46. [
The operation member 86 is formed of a U-shaped member that opens downward as viewed from the side of the setting recess portion 23 and is movable up and down by the engagement driving portion 84 in a posture with its opening downward . The operation member 86 is reciprocatingly linearly driven along the extending direction of the setting concave portion 23 together with the latch drive portion 84 by the posture change drive portion 82. [
In a state in which the supporting base portion 46 is disposed in the setting concave portion 23, the operating member 86 is disposed at a position above the posture changing projection portion 35b. Further, the posture changing projection 35b is set to be long enough not to deviate from the U-groove of the operation member 86. [ In this state, the actuating member 86 is lowered by the driving of the engaging drive portion 84, and the attitude changing projection portion 35b is arranged in the opening. In this state, the operation member 86 moves backward from the transfer line L together with the latch drive portion 84 by driving the posture change drive portion 82. [ Then, the posture changing projection portion 35b also moves backward from the transfer line L. At this time, the operation member 86 is formed with a groove extending in the direction transverse to the setting concave portion 23, and the posture changing projection portion 35b is inserted into the groove and moves along the extending direction of the groove . The posture changing projection portion 35b moves along the width direction of the setting concave portion 23 and moves along the extending direction of the setting concave portion 23 so that the arc locus around the support shaft portion 47 You can move around. Thereby, the posture changing projection portion 35b is pressed by the operation member 86 to move in the arc shape locus, so that the terminal shaping mold apparatus 32 can change posture from the atmospheric posture to the working posture. Further, by moving the operation member 86 in the opposite direction, the terminal forming die apparatus 32 can be changed from the working posture to the waiting posture. In this state, by lifting the operation member 86, the engagement of the operation member 86 and the posture changing projection portion 35b is released, and the support base portion 46 is moved backward from the setting recess portion 23 .
19, the posture of the terminal forming die apparatus 32 may be changed using the rack 130 and the pinion gear unit 132. [ In this case, the pinion gear portion 132 is integrally attached to the support shaft portion 47, and the rack 130 is disposed at a position where the pinion gear portion 132 can be engaged with the pinion gear portion 132, The posture of the terminal forming mold apparatus 32 may be changed by reciprocatingly driving it by a linear driving mechanism such as a motor or an air cylinder or a separate pinion gear rotationally driven by a motor or the like. In this case, when the support base portion 46 is disposed in the setting recess portion 23, the rack 130 may be moved by a separate moving mechanism so as to be engaged with the pinion gear portion 122. When the support base portion 46 is disposed in the setting recess portion 23, the rack 130 and the pinion gear portion 132 may be engaged with each other.
17 and 22, the mold apparatus fixing mechanism 76 is configured to hold the posture by hanging the terminal forming mold apparatus 32 in a state in which the terminal forming mold apparatus 32 is changed to the posture in the working posture . Here, the mold apparatus fixing mechanism 76 includes a receiving lug 77 and a lock mechanism 78. The receiving piece 77 is fixed on the terminal pressing table 22 and is in contact with the terminal forming die apparatus 32 in the state in which the terminal forming die apparatus 32 is changed from the atmospheric attitude to the working attitude, As shown in Fig. The lock mechanism portion 78 is provided on the side opposite to the receiving piece 77 in a state in which the terminal forming die device 32 is changed in posture in the working posture. That is, the locking hole 22h is formed at a position corresponding to the side opposite to the receiving piece 77 in the state where the terminal forming die apparatus 32 of the terminal pressing table 22 is in the working posture. The lock mechanism portion 78 includes a non-lock member 79a and a lock drive portion 79b. The non-locking member 79a is an elongated member having a claw portion. The non-locking member 79a is rotatably supported at a position corresponding to the locking hole 22h below the terminal pressing table 22, (See a solid line in FIG. 22) in which the claw portion is protruded from the top surface of the terminal pressing table 22 and is held on the side of the terminal forming mold apparatus 32 The posture can be changed between the postures. The lock driving portion 79b is constituted by a linear actuator such as an air cylinder or a hydraulic cylinder and swings the non-locking member 79a between the unlocked position and the locked position.
The terminal forming mold apparatus 32 passes over the non-locking member 79a to change its attitude in the working posture in a state in which the non-locking member 79a is in the non-locking posture, do. In this state, the non-locking member 79a is changed from the non-locking posture to the locking posture by driving the lock driving unit 79b so that the claw portions are hooked from the opposite side of the receiving piece 77 to the terminal forming mold apparatus 32 The terminal forming mold apparatus 32 is held in the locked posture. In this state, the pressing press mechanism portion 28 is disposed above the terminal molding die device 32, and the terminal molding die device 32 performs the terminal pressing operation by driving the pressing press mechanism portion 28 .
In this state, when the non-locking member 79a is changed from the locked position to the non-locked position by driving the lock driving unit 79b, the terminal forming die apparatus 32 is changed from the working posture to the waiting posture .
The configuration for changing the posture of the terminal-molding die apparatus 32 is not limited to the above example. The posture changing mechanism unit may be mounted on the exchange rack 40 itself. The timing for changing the attitude may not be a state in which the supporting base portion 46 moves to the setting recess portion 23 and stops. The attitude of the terminal shaping mold apparatus 32 may be changed during the advancing or retracting movement of the supporting base 46 to the setting recess 23, that is, the carrying line L.
<4. Operation description>
The operation of the replacing device 30 of the terminal forming mold apparatus 32 will be described. In addition, the present exchange apparatus 30 includes a microprocessor, a main storage unit coupled to the microprocessor, and a control unit configured by a microcomputer including an auxiliary storage unit. The following operations are performed in accordance with the instructions described in the program stored in the auxiliary storage unit.
23, it is assumed that the terminal can be pressed against the end of the electric wire W conveyed along the conveying line L by one of the terminal forming die apparatuses 32. [ In this state, one of the support base portions 46 advances and moves with respect to the conveying line L (set in the setting recess portion 23) (In a state of being supported by the rack supporting frame 54). In this state, the terminals are arranged in a direction perpendicular to the conveying line L when the terminals are pressed by the pressing body 36. [ That is, the grooves of the pair of terminal pressing metal molds of the pressing main body portion 36 extend in the direction orthogonal to the carrying line L. Therefore, the terminal can be supplied from the side of the compression main body portion 36 in the form of a chain terminal. Further, the terminal can be pressed onto the end of the electric wire W transported in a posture orthogonal to the transfer line L. Therefore, when the terminal crimping is performed, it is not necessary to change the direction of the end of the electric wire W, and the configuration of the electric wire carrying unit 14 can be simplified.
Then, when replacing the terminal to be crimped, that is, when replacing the terminal forming die apparatus 32, the following operation is performed.
24, by driving the posture change drive section 82 in a state in which the receiving piece 77 is in the non-locked state by the drive of the lock mechanism section 78, the terminal mold forming apparatus 32 Change the posture from the working posture to the waiting posture. Thereafter, engagement of the operation member 86 and the posture changing projection portion 35b is released by driving the engagement driving portion 84. [ Further, by the driving of the pushing drive section 72, the pushing of the support base section 46 by the pushing section 74 is released.
Thereafter, as shown in Fig. 25, the replacement rack 40 including the advancing support base 46 is retracted toward the rack supporting frame 54 by driving the rack forward / retract driving part 65. Then, as shown in Fig.
26, the rack supporting frame 54 is moved along the conveying line L by the driving of the interchangeable drive section 61, so that the plurality of (two) (In this case, the position corresponding to the rack advance driving portion 65) corresponding to the terminal pressing and receiving position (here, the position of the setting recess portion 23) . The posture changing projection portion 35b of the one of the support base portions 46 is laterally displaced from the inside of the conveying member 66 and instead the posture changing projection portion 35b of the other one of the support base portions 46 And the projecting portion 35b is disposed in the conveying member 66 from the side thereof.
27, the replacement rack 40 including the other support base portion 46 is moved from the rack support frame 54 to the terminal compression bonding table 54 by driving the rack advancement drive portion 65, (22). Then, the pressing base portion 46 is pressed and fixed by the pressing portion 74 by driving the pressing driving portion 72. [
28, by engaging the actuating member 86 and the posture changing projection 35b by driving the engaging driving section 84, the posture changing drive section 82 is driven in this state, And the molding die apparatus 32 is changed from the waiting posture to the working posture. When the receiving piece 77 is engaged with the terminal molding die unit 32 by driving the lock mechanism unit 78, the setting of the terminal forming die unit 32 is completed and the pressing press mechanism unit 28 So that the crimping main body 36 can perform the terminal crimping operation.
In this state, terminal crimping is performed on the end portion of the electric wire W carried by the wire conveying unit 14. [
According to the replacing apparatus 30 of the terminal forming mold apparatus 32 configured as described above, the entirety of the replacing rack 40 is moved so that the terminal forming mold apparatus 32 and the terminal reel 49 are moved together with the conveying line L So that they can be exchanged collectively. When moving the terminal forming die apparatus 32 forward and backward from the transfer line L, the terminal forming die apparatus 32 is placed in the waiting posture along the moving direction of the support base 46. Therefore, the movement locus can be made small, and the installation area can be made as small as possible. The plurality of terminal forming die apparatuses 32 are placed in a parallel posture in which the plurality of terminal forming die apparatuses 32 are arranged along the moving direction of the support base 46, even when the terminal forming die apparatus 32 is moved backward from the transfer line L. [ So that the standby area can be reduced in size.
When the terminal molding die apparatus 32 is moved toward and away from the transfer line L to press the terminal against the end of the electric wire W, the terminal forming die apparatus 32 is post- The end of the electric wire W carried along the line L can be placed between a pair of the molds without changing the direction thereof to perform terminal compression. Therefore, it is not necessary to incorporate a configuration for changing the direction of the end of the electric wire W or the like around the electric wire carrying unit 14, and the configuration can be simplified.
Further, the terminal forming die apparatus 32 is changed from the atmospheric attitude to the working attitude while the support base 46 is advanced or moved to the transfer line L, The posture change driving unit 82 that changes the posture of the terminal forming mold apparatus 32 from the working posture to the atmospheric posture during the retraction or backward movement of the support base unit 46 are moved forward and backward with respect to the transfer line L, the posture of the terminal-molding die apparatus 32 can be automatically changed.
The reel support portion 48 is provided below the support base portion 46 and guides the chain terminal T drawn out from the terminal reel 49 supported by the reel support portion 48 along the vertical direction, Since the chain terminal guide portion 35 guided to the mold device 32 rotates integrally with the terminal forming die device 32, even when the terminal forming die device 32 is changed to the working posture, (T) can be smoothly guided toward the terminal mold apparatus
A rack support frame 54 for supporting a plurality of exchange racks 40 in parallel at a position spaced apart from the transfer line L and an exchange rack 40 supported by the rack support frame 54 (60) for moving the rack support frame (54) so as to position one of them at a position corresponding to the terminal crimp storage position, and an exchange rack (40) arranged at the terminal crimp storage position on the transfer line And the rack / retract mechanism 64 that moves the rack 40 forward and backward. Therefore, it is convenient because the plurality of exchange racks 40 can be automatically exchanged.
29, the pressing main body portion 36 is pivoted around the supporting shaft portion 47 and is disposed at a position below the pressing press mechanism portion 28. As shown in Fig. Therefore, it is necessary to set the pressing main body portion 36 along the front and rear direction Q (that is, the setting direction of the end portion of the wire 13) with respect to the pressing press mechanism portion 28. [
As a general pressing body portion 36, there is a type in which the pressing press mechanism portion is set from the side of the general pressing body portion 36. A structure for applying such a pressing body portion 36 to this embodiment will be described .
First, as shown in Fig. 30, on the upper portion of the movable portion 130, which is subjected to a force to lift the upper mold (also referred to as a crimper) out of the pressed main body portion 36 of the terminal forming mold apparatus 32, 132 are formed. The setting recess portion 132 is formed in a concave shape from one side of the movable portion 130 toward the center portion of the movable portion 130. The upper opening of the setting recess 130 is narrower than the bottom and a pair of setting grooves 133 are formed on the inner side (lower side).
The setting recess 130 is a portion in which the press force applying portion 140 of the pressing press mechanism portion is inserted and taken in. That is, the pressing force imparting unit 140 has a shape in which a disk-shaped flange portion 142 is formed at the lower end of the short cylindrical portion. And is inserted into the setting recess 130 from the first direction from the side opening side thereof. The flange portion 142 is inserted into the pair of setting groove portions 133 so that the movable portion 130 is moved up and down together with the pressing force applying portion 140 in accordance with the elevating and lowering operation by the pressing press mechanism portion. The pressing press mechanism portion 28 in this embodiment also has the pressing force imparting portion 140 as described above (see FIGS. 31 and 33).
On the upper side of the movable part 130, the following press force relay mechanism part 150 is attached.
As shown in Figs. 30 to 33, the press force relay mechanism unit 150 includes a relay engaging portion 152 and a relay main body portion 154 having a relay setting recess 156 formed therein.
The relay main body portion 154 is formed in a block shape by a metal or the like, and on the upper portion thereof, a relay setting recess 156 having the same shape as the setting recess portion 130 is formed. However, the lateral opening direction of the relay setting recess 156 is different from the lateral opening direction of the setting recess 130 (first direction). That is, the lateral opening direction of the relay setting recess 156 is such that when the pressing main body portion 36 is rotated around the supporting shaft portion 47, the pressing main body portion 36 is pressed downward And is opened toward the moving direction of the pressing body portion 36. [ Therefore, when the pressing force applying unit 140 is moved in the direction different from the first direction and in the direction along the moving direction when the terminal forming die apparatus 32 is moved downwardly of the pressing press mechanism unit 28 And the pressing force applying unit 140 can be inserted into the relay setting recess 156.
The side portion 156a on the inner circumferential side of the circle in which the terminal shaping mold apparatus 32 rotates is inclined outward toward the side opening direction of the relay setting recess 156, Respectively. That is, in accordance with the turning of the terminal forming mold apparatus 32, the pressing force imparting unit 140 is inserted into the relay setting recess 156 while drawing an arc from the side of the inner circumferential side of the relay setting recess 156 The pressing force imparting unit 140 is smoothly inserted into the relaying setting concave portion 156 by inclining the side portion for the arc shape locus.
A concave portion 157 having a circular bottom is formed at the bottom of the relay main body portion 154. A screw insertion through hole 158 is formed between the concave portion 157 having the bottom and the relay setting recess 156.
The relay engaging portion 152 is formed of metal or the like and has a shape in which disc flange portions 152a and 152b are formed at both ends of a short cylindrical portion.
One of the flange portions 152a is formed so as to be able to be inserted into the concave portion 157 having the bottom. The flange portion 152a is formed with a screw hole 152as corresponding to the screw insertion through hole 158. [ The screw S is screwed to the screw hole 152as through the screw insertion through hole 158 to fix the relay insertion portion 152 to the relay main body 154. [
The other flange portion 152b is formed so as to be insertable into and can be inserted into a pair of groove portions 133 of the setting recess portion 130. [ When the flange portion 152b is inserted into the pair of the groove portions 133 and the screw S is tightened, the other flange portion 152b is pulled by the relay main body portion 154, The force relay mechanism unit 150 is attached and fixed to the upper portion of the movable portion 130.
When the relay mechanism unit 150 is used, the insertion direction of the pressing force imparting unit 140 can be changed. As a result, the pressing main body portion 36 can be provided with a configuration in which the pressing force imparting portion 140 can be inserted and taken in from the side of the originally pressed side. As a result of the pivotal movement of the pressing main body portion 36, (140) can be easily inserted into the relay engaging portion (152).
Although the present invention has been described in detail in the foregoing, the foregoing description is exemplary in all aspects and the present invention is not limited thereto. It is understood that numerous modifications that are not illustrated can be made without departing from the scope of the present invention.
